./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs --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 d9035b4ec3c8be0c8a62b9c4cf3880a262fca73149d78c2d88c8226ff5942d9e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:13:59,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:13:59,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:13:59,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:13:59,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:13:59,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:13:59,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:13:59,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:13:59,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:13:59,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:13:59,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:13:59,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:13:59,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:13:59,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:13:59,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:13:59,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:13:59,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:13:59,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:13:59,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:13:59,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:13:59,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:13:59,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:13:59,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:13:59,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:13:59,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:13:59,481 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:13:59,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:13:59,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:13:59,484 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:13:59,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:13:59,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:13:59,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:13:59,490 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:13:59,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:13:59,493 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:13:59,493 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:13:59,494 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:13:59,495 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:13:59,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:13:59,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:13:59,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:13:59,498 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:13:59,546 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:13:59,546 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:13:59,548 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:13:59,549 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:13:59,549 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:13:59,549 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:13:59,550 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:13:59,550 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:13:59,557 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:13:59,558 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:13:59,559 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:13:59,559 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:13:59,559 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:13:59,560 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:13:59,560 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:13:59,560 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:13:59,561 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:13:59,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:13:59,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:13:59,562 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:13:59,562 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:13:59,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:13:59,563 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:13:59,563 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:13:59,563 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:13:59,564 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:13:59,564 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:13:59,564 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:13:59,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:13:59,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:13:59,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:13:59,567 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:13:59,568 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:13:59,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:13:59,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:13:59,569 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:13:59,569 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:13:59,569 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_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9035b4ec3c8be0c8a62b9c4cf3880a262fca73149d78c2d88c8226ff5942d9e [2021-11-19 14:13:59,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:13:59,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:13:59,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:13:59,967 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:13:59,968 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:13:59,969 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i [2021-11-19 14:14:00,047 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/data/7a8405ab8/72a7df9bdfd04a299966d615ca191a36/FLAG3decd7443 [2021-11-19 14:14:01,174 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:14:01,174 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i [2021-11-19 14:14:01,261 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/data/7a8405ab8/72a7df9bdfd04a299966d615ca191a36/FLAG3decd7443 [2021-11-19 14:14:01,411 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/data/7a8405ab8/72a7df9bdfd04a299966d615ca191a36 [2021-11-19 14:14:01,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:14:01,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:14:01,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:14:01,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:14:01,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:14:01,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:14:01" (1/1) ... [2021-11-19 14:14:01,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3897ecac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:01, skipping insertion in model container [2021-11-19 14:14:01,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:14:01" (1/1) ... [2021-11-19 14:14:01,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:14:01,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:14:03,258 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:03,283 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:03,285 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:03,316 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:03,319 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:03,544 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:03,798 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:03,858 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:03,873 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:03,873 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:03,874 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:03,905 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:03,921 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:03,954 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:03,977 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:03,985 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:04,371 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:04,372 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:04,373 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:04,374 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:04,375 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:04,376 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:04,377 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:04,377 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:04,383 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:04,390 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:04,391 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:04,392 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:04,397 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:04,398 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:04,420 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:04,420 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:04,421 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:04,732 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:04,739 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:06,023 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[374560,374573] [2021-11-19 14:14:06,026 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[374705,374718] [2021-11-19 14:14:06,027 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[374851,374864] [2021-11-19 14:14:06,028 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375016,375029] [2021-11-19 14:14:06,029 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375174,375187] [2021-11-19 14:14:06,029 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375332,375345] [2021-11-19 14:14:06,030 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375490,375503] [2021-11-19 14:14:06,031 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375650,375663] [2021-11-19 14:14:06,031 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375809,375822] [2021-11-19 14:14:06,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375948,375961] [2021-11-19 14:14:06,033 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376090,376103] [2021-11-19 14:14:06,033 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376239,376252] [2021-11-19 14:14:06,034 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376378,376391] [2021-11-19 14:14:06,035 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376533,376546] [2021-11-19 14:14:06,035 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376693,376706] [2021-11-19 14:14:06,036 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376844,376857] [2021-11-19 14:14:06,037 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376995,377008] [2021-11-19 14:14:06,038 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377147,377160] [2021-11-19 14:14:06,038 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377296,377309] [2021-11-19 14:14:06,039 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377444,377457] [2021-11-19 14:14:06,040 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377601,377614] [2021-11-19 14:14:06,041 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377750,377763] [2021-11-19 14:14:06,042 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377906,377919] [2021-11-19 14:14:06,042 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378059,378072] [2021-11-19 14:14:06,043 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378205,378218] [2021-11-19 14:14:06,044 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378348,378361] [2021-11-19 14:14:06,045 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378500,378513] [2021-11-19 14:14:06,045 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378646,378659] [2021-11-19 14:14:06,046 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378791,378804] [2021-11-19 14:14:06,047 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378945,378958] [2021-11-19 14:14:06,048 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379096,379109] [2021-11-19 14:14:06,048 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379251,379264] [2021-11-19 14:14:06,049 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379403,379416] [2021-11-19 14:14:06,050 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379558,379571] [2021-11-19 14:14:06,050 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379722,379735] [2021-11-19 14:14:06,051 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379878,379891] [2021-11-19 14:14:06,052 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380042,380055] [2021-11-19 14:14:06,052 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380184,380197] [2021-11-19 14:14:06,053 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380342,380355] [2021-11-19 14:14:06,054 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380509,380522] [2021-11-19 14:14:06,054 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380668,380681] [2021-11-19 14:14:06,055 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380827,380840] [2021-11-19 14:14:06,056 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380976,380989] [2021-11-19 14:14:06,056 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381123,381136] [2021-11-19 14:14:06,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381262,381275] [2021-11-19 14:14:06,058 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381425,381438] [2021-11-19 14:14:06,058 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381591,381604] [2021-11-19 14:14:06,059 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381755,381768] [2021-11-19 14:14:06,060 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381920,381933] [2021-11-19 14:14:06,061 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382085,382098] [2021-11-19 14:14:06,061 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382251,382264] [2021-11-19 14:14:06,062 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382416,382429] [2021-11-19 14:14:06,063 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382583,382596] [2021-11-19 14:14:06,064 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382743,382756] [2021-11-19 14:14:06,064 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382905,382918] [2021-11-19 14:14:06,065 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383064,383077] [2021-11-19 14:14:06,066 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383210,383223] [2021-11-19 14:14:06,067 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383353,383366] [2021-11-19 14:14:06,067 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383497,383510] [2021-11-19 14:14:06,068 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383640,383653] [2021-11-19 14:14:06,069 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383784,383797] [2021-11-19 14:14:06,070 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383925,383938] [2021-11-19 14:14:06,070 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384063,384076] [2021-11-19 14:14:06,071 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384221,384234] [2021-11-19 14:14:06,072 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384380,384393] [2021-11-19 14:14:06,072 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384536,384549] [2021-11-19 14:14:06,073 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384685,384698] [2021-11-19 14:14:06,074 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384837,384850] [2021-11-19 14:14:06,074 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384988,385001] [2021-11-19 14:14:06,075 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385137,385150] [2021-11-19 14:14:06,076 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385289,385302] [2021-11-19 14:14:06,076 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385437,385450] [2021-11-19 14:14:06,077 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385590,385603] [2021-11-19 14:14:06,078 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385741,385754] [2021-11-19 14:14:06,079 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385891,385904] [2021-11-19 14:14:06,079 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386038,386051] [2021-11-19 14:14:06,080 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386189,386202] [2021-11-19 14:14:06,081 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386340,386353] [2021-11-19 14:14:06,081 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386488,386501] [2021-11-19 14:14:06,082 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386654,386667] [2021-11-19 14:14:06,083 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386823,386836] [2021-11-19 14:14:06,083 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386990,387003] [2021-11-19 14:14:06,084 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387158,387171] [2021-11-19 14:14:06,085 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387308,387321] [2021-11-19 14:14:06,085 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387455,387468] [2021-11-19 14:14:06,086 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387616,387629] [2021-11-19 14:14:06,087 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387786,387799] [2021-11-19 14:14:06,087 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387948,387961] [2021-11-19 14:14:06,092 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:14:06,126 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) [2021-11-19 14:14:06,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@471f9bfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:06, skipping insertion in model container [2021-11-19 14:14:06,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:14:06,128 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:14:06,130 INFO L158 Benchmark]: Toolchain (without parser) took 4712.88ms. Allocated memory is still 119.5MB. Free memory was 88.0MB in the beginning and 53.8MB in the end (delta: 34.2MB). Peak memory consumption was 78.8MB. Max. memory is 16.1GB. [2021-11-19 14:14:06,131 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 88.1MB. Free memory is still 65.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:14:06,132 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4707.50ms. Allocated memory is still 119.5MB. Free memory was 87.6MB in the beginning and 54.5MB in the end (delta: 33.1MB). Peak memory consumption was 78.8MB. Max. memory is 16.1GB. [2021-11-19 14:14:06,133 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 88.1MB. Free memory is still 65.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4707.50ms. Allocated memory is still 119.5MB. Free memory was 87.6MB in the beginning and 54.5MB in the end (delta: 33.1MB). Peak memory consumption was 78.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 4979]: 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_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs --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 d9035b4ec3c8be0c8a62b9c4cf3880a262fca73149d78c2d88c8226ff5942d9e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:14:08,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:14:08,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:14:08,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:14:08,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:14:08,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:14:08,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:14:08,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:14:08,776 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:14:08,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:14:08,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:14:08,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:14:08,781 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:14:08,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:14:08,784 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:14:08,785 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:14:08,786 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:14:08,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:14:08,790 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:14:08,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:14:08,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:14:08,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:14:08,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:14:08,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:14:08,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:14:08,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:14:08,815 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:14:08,818 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:14:08,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:14:08,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:14:08,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:14:08,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:14:08,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:14:08,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:14:08,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:14:08,828 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:14:08,829 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:14:08,829 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:14:08,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:14:08,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:14:08,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:14:08,833 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:14:08,875 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:14:08,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:14:08,876 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:14:08,877 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:14:08,877 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:14:08,877 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:14:08,878 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:14:08,878 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:14:08,878 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:14:08,878 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:14:08,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:14:08,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:14:08,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:14:08,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:14:08,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:14:08,880 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:14:08,880 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:14:08,881 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:14:08,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:14:08,881 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:14:08,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:14:08,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:14:08,882 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:14:08,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:14:08,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:14:08,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:14:08,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:14:08,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:14:08,883 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:14:08,883 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:14:08,884 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:14:08,884 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:14:08,884 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:14:08,884 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_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9035b4ec3c8be0c8a62b9c4cf3880a262fca73149d78c2d88c8226ff5942d9e [2021-11-19 14:14:09,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:14:09,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:14:09,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:14:09,363 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:14:09,364 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:14:09,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i [2021-11-19 14:14:09,442 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/data/9824eaade/a20ec4fe2ab1469f9f6a92df50f1c72e/FLAGa3ea8b063 [2021-11-19 14:14:10,570 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:14:10,571 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i [2021-11-19 14:14:10,657 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/data/9824eaade/a20ec4fe2ab1469f9f6a92df50f1c72e/FLAGa3ea8b063 [2021-11-19 14:14:10,952 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/data/9824eaade/a20ec4fe2ab1469f9f6a92df50f1c72e [2021-11-19 14:14:10,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:14:10,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:14:10,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:14:10,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:14:10,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:14:10,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:14:10" (1/1) ... [2021-11-19 14:14:10,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e7a439f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:10, skipping insertion in model container [2021-11-19 14:14:10,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:14:10" (1/1) ... [2021-11-19 14:14:10,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:14:11,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:14:15,886 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[374560,374573] [2021-11-19 14:14:15,890 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[374705,374718] [2021-11-19 14:14:15,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[374851,374864] [2021-11-19 14:14:15,892 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375016,375029] [2021-11-19 14:14:15,894 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375174,375187] [2021-11-19 14:14:15,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375332,375345] [2021-11-19 14:14:15,896 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375490,375503] [2021-11-19 14:14:15,896 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375650,375663] [2021-11-19 14:14:15,897 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375809,375822] [2021-11-19 14:14:15,898 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375948,375961] [2021-11-19 14:14:15,898 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376090,376103] [2021-11-19 14:14:15,900 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376239,376252] [2021-11-19 14:14:15,900 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376378,376391] [2021-11-19 14:14:15,901 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376533,376546] [2021-11-19 14:14:15,903 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376693,376706] [2021-11-19 14:14:15,904 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376844,376857] [2021-11-19 14:14:15,908 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376995,377008] [2021-11-19 14:14:15,909 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377147,377160] [2021-11-19 14:14:15,910 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377296,377309] [2021-11-19 14:14:15,911 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377444,377457] [2021-11-19 14:14:15,912 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377601,377614] [2021-11-19 14:14:15,913 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377750,377763] [2021-11-19 14:14:15,914 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377906,377919] [2021-11-19 14:14:15,918 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378059,378072] [2021-11-19 14:14:15,927 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378205,378218] [2021-11-19 14:14:15,927 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378348,378361] [2021-11-19 14:14:15,928 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378500,378513] [2021-11-19 14:14:15,928 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378646,378659] [2021-11-19 14:14:15,929 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378791,378804] [2021-11-19 14:14:15,929 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378945,378958] [2021-11-19 14:14:15,930 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379096,379109] [2021-11-19 14:14:15,931 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379251,379264] [2021-11-19 14:14:15,931 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379403,379416] [2021-11-19 14:14:15,932 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379558,379571] [2021-11-19 14:14:15,932 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379722,379735] [2021-11-19 14:14:15,933 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379878,379891] [2021-11-19 14:14:15,934 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380042,380055] [2021-11-19 14:14:15,934 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380184,380197] [2021-11-19 14:14:15,935 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380342,380355] [2021-11-19 14:14:15,935 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380509,380522] [2021-11-19 14:14:15,936 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380668,380681] [2021-11-19 14:14:15,936 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380827,380840] [2021-11-19 14:14:15,937 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380976,380989] [2021-11-19 14:14:15,937 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381123,381136] [2021-11-19 14:14:15,938 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381262,381275] [2021-11-19 14:14:15,938 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381425,381438] [2021-11-19 14:14:15,938 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381591,381604] [2021-11-19 14:14:15,939 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381755,381768] [2021-11-19 14:14:15,939 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381920,381933] [2021-11-19 14:14:15,940 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382085,382098] [2021-11-19 14:14:15,940 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382251,382264] [2021-11-19 14:14:15,941 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382416,382429] [2021-11-19 14:14:15,941 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382583,382596] [2021-11-19 14:14:15,942 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382743,382756] [2021-11-19 14:14:15,942 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382905,382918] [2021-11-19 14:14:15,943 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383064,383077] [2021-11-19 14:14:15,948 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383210,383223] [2021-11-19 14:14:15,948 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383353,383366] [2021-11-19 14:14:15,949 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383497,383510] [2021-11-19 14:14:15,950 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383640,383653] [2021-11-19 14:14:15,950 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383784,383797] [2021-11-19 14:14:15,952 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383925,383938] [2021-11-19 14:14:15,953 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384063,384076] [2021-11-19 14:14:15,953 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384221,384234] [2021-11-19 14:14:15,954 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384380,384393] [2021-11-19 14:14:15,955 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384536,384549] [2021-11-19 14:14:15,956 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384685,384698] [2021-11-19 14:14:15,956 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384837,384850] [2021-11-19 14:14:15,957 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384988,385001] [2021-11-19 14:14:15,958 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385137,385150] [2021-11-19 14:14:15,958 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385289,385302] [2021-11-19 14:14:15,959 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385437,385450] [2021-11-19 14:14:15,960 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385590,385603] [2021-11-19 14:14:15,960 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385741,385754] [2021-11-19 14:14:15,961 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385891,385904] [2021-11-19 14:14:15,962 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386038,386051] [2021-11-19 14:14:15,963 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386189,386202] [2021-11-19 14:14:15,964 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386340,386353] [2021-11-19 14:14:15,965 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386488,386501] [2021-11-19 14:14:15,966 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386654,386667] [2021-11-19 14:14:15,967 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386823,386836] [2021-11-19 14:14:15,967 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386990,387003] [2021-11-19 14:14:15,968 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387158,387171] [2021-11-19 14:14:15,969 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387308,387321] [2021-11-19 14:14:15,969 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387455,387468] [2021-11-19 14:14:15,970 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387616,387629] [2021-11-19 14:14:15,971 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387786,387799] [2021-11-19 14:14:15,972 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387948,387961] [2021-11-19 14:14:15,979 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:14:16,089 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:14:16,215 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:14:16,718 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[374560,374573] [2021-11-19 14:14:16,719 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[374705,374718] [2021-11-19 14:14:16,719 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[374851,374864] [2021-11-19 14:14:16,721 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375016,375029] [2021-11-19 14:14:16,721 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375174,375187] [2021-11-19 14:14:16,723 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375332,375345] [2021-11-19 14:14:16,724 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375490,375503] [2021-11-19 14:14:16,724 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375650,375663] [2021-11-19 14:14:16,725 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375809,375822] [2021-11-19 14:14:16,726 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375948,375961] [2021-11-19 14:14:16,726 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376090,376103] [2021-11-19 14:14:16,727 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376239,376252] [2021-11-19 14:14:16,727 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376378,376391] [2021-11-19 14:14:16,728 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376533,376546] [2021-11-19 14:14:16,729 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376693,376706] [2021-11-19 14:14:16,730 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376844,376857] [2021-11-19 14:14:16,730 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376995,377008] [2021-11-19 14:14:16,731 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377147,377160] [2021-11-19 14:14:16,731 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377296,377309] [2021-11-19 14:14:16,732 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377444,377457] [2021-11-19 14:14:16,732 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377601,377614] [2021-11-19 14:14:16,734 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377750,377763] [2021-11-19 14:14:16,734 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377906,377919] [2021-11-19 14:14:16,735 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378059,378072] [2021-11-19 14:14:16,736 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378205,378218] [2021-11-19 14:14:16,741 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378348,378361] [2021-11-19 14:14:16,742 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378500,378513] [2021-11-19 14:14:16,742 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378646,378659] [2021-11-19 14:14:16,743 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378791,378804] [2021-11-19 14:14:16,744 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378945,378958] [2021-11-19 14:14:16,744 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379096,379109] [2021-11-19 14:14:16,745 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379251,379264] [2021-11-19 14:14:16,746 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379403,379416] [2021-11-19 14:14:16,746 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379558,379571] [2021-11-19 14:14:16,747 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379722,379735] [2021-11-19 14:14:16,748 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379878,379891] [2021-11-19 14:14:16,748 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380042,380055] [2021-11-19 14:14:16,750 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380184,380197] [2021-11-19 14:14:16,751 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380342,380355] [2021-11-19 14:14:16,752 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380509,380522] [2021-11-19 14:14:16,754 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380668,380681] [2021-11-19 14:14:16,754 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380827,380840] [2021-11-19 14:14:16,755 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380976,380989] [2021-11-19 14:14:16,756 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381123,381136] [2021-11-19 14:14:16,757 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381262,381275] [2021-11-19 14:14:16,758 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381425,381438] [2021-11-19 14:14:16,758 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381591,381604] [2021-11-19 14:14:16,759 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381755,381768] [2021-11-19 14:14:16,759 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381920,381933] [2021-11-19 14:14:16,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382085,382098] [2021-11-19 14:14:16,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382251,382264] [2021-11-19 14:14:16,761 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382416,382429] [2021-11-19 14:14:16,764 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382583,382596] [2021-11-19 14:14:16,766 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382743,382756] [2021-11-19 14:14:16,767 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382905,382918] [2021-11-19 14:14:16,767 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383064,383077] [2021-11-19 14:14:16,768 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383210,383223] [2021-11-19 14:14:16,769 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383353,383366] [2021-11-19 14:14:16,770 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383497,383510] [2021-11-19 14:14:16,772 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383640,383653] [2021-11-19 14:14:16,776 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383784,383797] [2021-11-19 14:14:16,777 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383925,383938] [2021-11-19 14:14:16,778 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384063,384076] [2021-11-19 14:14:16,780 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384221,384234] [2021-11-19 14:14:16,781 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384380,384393] [2021-11-19 14:14:16,783 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384536,384549] [2021-11-19 14:14:16,784 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384685,384698] [2021-11-19 14:14:16,784 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384837,384850] [2021-11-19 14:14:16,785 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384988,385001] [2021-11-19 14:14:16,791 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385137,385150] [2021-11-19 14:14:16,792 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385289,385302] [2021-11-19 14:14:16,793 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385437,385450] [2021-11-19 14:14:16,793 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385590,385603] [2021-11-19 14:14:16,794 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385741,385754] [2021-11-19 14:14:16,794 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385891,385904] [2021-11-19 14:14:16,795 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386038,386051] [2021-11-19 14:14:16,795 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386189,386202] [2021-11-19 14:14:16,796 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386340,386353] [2021-11-19 14:14:16,798 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386488,386501] [2021-11-19 14:14:16,799 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386654,386667] [2021-11-19 14:14:16,799 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386823,386836] [2021-11-19 14:14:16,801 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386990,387003] [2021-11-19 14:14:16,801 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387158,387171] [2021-11-19 14:14:16,802 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387308,387321] [2021-11-19 14:14:16,802 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387455,387468] [2021-11-19 14:14:16,803 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387616,387629] [2021-11-19 14:14:16,803 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387786,387799] [2021-11-19 14:14:16,804 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387948,387961] [2021-11-19 14:14:16,808 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:14:16,868 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:14:17,408 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[374560,374573] [2021-11-19 14:14:17,409 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[374705,374718] [2021-11-19 14:14:17,410 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[374851,374864] [2021-11-19 14:14:17,410 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375016,375029] [2021-11-19 14:14:17,411 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375174,375187] [2021-11-19 14:14:17,412 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375332,375345] [2021-11-19 14:14:17,412 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375490,375503] [2021-11-19 14:14:17,413 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375650,375663] [2021-11-19 14:14:17,413 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375809,375822] [2021-11-19 14:14:17,414 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375948,375961] [2021-11-19 14:14:17,415 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376090,376103] [2021-11-19 14:14:17,415 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376239,376252] [2021-11-19 14:14:17,416 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376378,376391] [2021-11-19 14:14:17,416 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376533,376546] [2021-11-19 14:14:17,417 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376693,376706] [2021-11-19 14:14:17,418 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376844,376857] [2021-11-19 14:14:17,418 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376995,377008] [2021-11-19 14:14:17,419 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377147,377160] [2021-11-19 14:14:17,419 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377296,377309] [2021-11-19 14:14:17,420 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377444,377457] [2021-11-19 14:14:17,420 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377601,377614] [2021-11-19 14:14:17,421 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377750,377763] [2021-11-19 14:14:17,422 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377906,377919] [2021-11-19 14:14:17,422 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378059,378072] [2021-11-19 14:14:17,423 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378205,378218] [2021-11-19 14:14:17,423 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378348,378361] [2021-11-19 14:14:17,424 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378500,378513] [2021-11-19 14:14:17,425 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378646,378659] [2021-11-19 14:14:17,425 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378791,378804] [2021-11-19 14:14:17,426 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378945,378958] [2021-11-19 14:14:17,426 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379096,379109] [2021-11-19 14:14:17,427 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379251,379264] [2021-11-19 14:14:17,427 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379403,379416] [2021-11-19 14:14:17,428 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379558,379571] [2021-11-19 14:14:17,429 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379722,379735] [2021-11-19 14:14:17,429 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379878,379891] [2021-11-19 14:14:17,430 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380042,380055] [2021-11-19 14:14:17,430 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380184,380197] [2021-11-19 14:14:17,431 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380342,380355] [2021-11-19 14:14:17,431 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380509,380522] [2021-11-19 14:14:17,432 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380668,380681] [2021-11-19 14:14:17,432 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380827,380840] [2021-11-19 14:14:17,433 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380976,380989] [2021-11-19 14:14:17,434 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381123,381136] [2021-11-19 14:14:17,434 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381262,381275] [2021-11-19 14:14:17,435 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381425,381438] [2021-11-19 14:14:17,436 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381591,381604] [2021-11-19 14:14:17,436 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381755,381768] [2021-11-19 14:14:17,437 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381920,381933] [2021-11-19 14:14:17,437 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382085,382098] [2021-11-19 14:14:17,438 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382251,382264] [2021-11-19 14:14:17,439 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382416,382429] [2021-11-19 14:14:17,439 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382583,382596] [2021-11-19 14:14:17,440 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382743,382756] [2021-11-19 14:14:17,440 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382905,382918] [2021-11-19 14:14:17,441 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383064,383077] [2021-11-19 14:14:17,441 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383210,383223] [2021-11-19 14:14:17,442 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383353,383366] [2021-11-19 14:14:17,442 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383497,383510] [2021-11-19 14:14:17,443 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383640,383653] [2021-11-19 14:14:17,443 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383784,383797] [2021-11-19 14:14:17,444 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383925,383938] [2021-11-19 14:14:17,444 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384063,384076] [2021-11-19 14:14:17,445 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384221,384234] [2021-11-19 14:14:17,446 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384380,384393] [2021-11-19 14:14:17,446 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384536,384549] [2021-11-19 14:14:17,447 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384685,384698] [2021-11-19 14:14:17,447 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384837,384850] [2021-11-19 14:14:17,448 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384988,385001] [2021-11-19 14:14:17,448 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385137,385150] [2021-11-19 14:14:17,449 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385289,385302] [2021-11-19 14:14:17,449 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385437,385450] [2021-11-19 14:14:17,450 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385590,385603] [2021-11-19 14:14:17,450 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385741,385754] [2021-11-19 14:14:17,450 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385891,385904] [2021-11-19 14:14:17,451 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386038,386051] [2021-11-19 14:14:17,452 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386189,386202] [2021-11-19 14:14:17,452 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386340,386353] [2021-11-19 14:14:17,453 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386488,386501] [2021-11-19 14:14:17,453 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386654,386667] [2021-11-19 14:14:17,454 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386823,386836] [2021-11-19 14:14:17,454 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386990,387003] [2021-11-19 14:14:17,455 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387158,387171] [2021-11-19 14:14:17,455 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387308,387321] [2021-11-19 14:14:17,456 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387455,387468] [2021-11-19 14:14:17,456 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387616,387629] [2021-11-19 14:14:17,457 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387786,387799] [2021-11-19 14:14:17,457 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387948,387961] [2021-11-19 14:14:17,461 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:14:17,779 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:14:17,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:17 WrapperNode [2021-11-19 14:14:17,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:14:17,781 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:14:17,781 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:14:17,781 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:14:17,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:17" (1/1) ... [2021-11-19 14:14:17,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:17" (1/1) ... [2021-11-19 14:14:18,210 INFO L137 Inliner]: procedures = 649, calls = 2778, calls flagged for inlining = 295, calls inlined = 219, statements flattened = 6081 [2021-11-19 14:14:18,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:14:18,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:14:18,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:14:18,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:14:18,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:17" (1/1) ... [2021-11-19 14:14:18,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:17" (1/1) ... [2021-11-19 14:14:18,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:17" (1/1) ... [2021-11-19 14:14:18,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:17" (1/1) ... [2021-11-19 14:14:18,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:17" (1/1) ... [2021-11-19 14:14:18,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:17" (1/1) ... [2021-11-19 14:14:18,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:17" (1/1) ... [2021-11-19 14:14:18,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:14:18,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:14:18,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:14:18,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:14:18,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:17" (1/1) ... [2021-11-19 14:14:18,609 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:14:18,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:14:18,641 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:14:18,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:14:18,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_97 [2021-11-19 14:14:18,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_97 [2021-11-19 14:14:18,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-19 14:14:18,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-19 14:14:18,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 14:14:18,701 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 14:14:18,701 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_wakeup [2021-11-19 14:14:18,701 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_wakeup [2021-11-19 14:14:18,702 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_read_fifo [2021-11-19 14:14:18,702 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_read_fifo [2021-11-19 14:14:18,702 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_write_fifo [2021-11-19 14:14:18,702 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_write_fifo [2021-11-19 14:14:18,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:14:18,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:14:18,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_net2272 [2021-11-19 14:14:18,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_net2272 [2021-11-19 14:14:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_io_mem_remap [2021-11-19 14:14:18,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_io_mem_remap [2021-11-19 14:14:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-19 14:14:18,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-19 14:14:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-19 14:14:18,704 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-19 14:14:18,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:14:18,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:14:18,704 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_read [2021-11-19 14:14:18,704 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_read [2021-11-19 14:14:18,704 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-11-19 14:14:18,705 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-11-19 14:14:18,705 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_enable [2021-11-19 14:14:18,705 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_enable [2021-11-19 14:14:18,705 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_pio_advance [2021-11-19 14:14:18,706 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_pio_advance [2021-11-19 14:14:18,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-19 14:14:18,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-19 14:14:18,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-19 14:14:18,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-19 14:14:18,706 INFO L130 BoogieDeclarations]: Found specification of procedure set_fifo_bytecount [2021-11-19 14:14:18,707 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fifo_bytecount [2021-11-19 14:14:18,707 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 14:14:18,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 14:14:18,707 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_usb_reset [2021-11-19 14:14:18,707 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_usb_reset [2021-11-19 14:14:18,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:14:18,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:14:18,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:14:18,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:14:18,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-19 14:14:18,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-19 14:14:18,708 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_usb_reinit [2021-11-19 14:14:18,708 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_usb_reinit [2021-11-19 14:14:18,709 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_pci_unregister [2021-11-19 14:14:18,709 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_pci_unregister [2021-11-19 14:14:18,709 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2021-11-19 14:14:18,709 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2021-11-19 14:14:18,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:14:18,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 14:14:18,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:14:18,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:14:18,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_101 [2021-11-19 14:14:18,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_101 [2021-11-19 14:14:18,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:14:18,710 INFO L130 BoogieDeclarations]: Found specification of procedure type_string [2021-11-19 14:14:18,710 INFO L138 BoogieDeclarations]: Found implementation of procedure type_string [2021-11-19 14:14:18,711 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_gadget_release [2021-11-19 14:14:18,711 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_gadget_release [2021-11-19 14:14:18,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-19 14:14:18,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-19 14:14:18,711 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_handle_dma [2021-11-19 14:14:18,711 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_handle_dma [2021-11-19 14:14:18,712 INFO L130 BoogieDeclarations]: Found specification of procedure allow_status [2021-11-19 14:14:18,712 INFO L138 BoogieDeclarations]: Found implementation of procedure allow_status [2021-11-19 14:14:18,712 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-19 14:14:18,712 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-19 14:14:18,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-19 14:14:18,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-19 14:14:18,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:14:18,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:14:18,713 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_request_dma [2021-11-19 14:14:18,713 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_request_dma [2021-11-19 14:14:18,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-19 14:14:18,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-19 14:14:18,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-19 14:14:18,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-19 14:14:18,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-19 14:14:18,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-19 14:14:18,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 14:14:18,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 14:14:18,714 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_ep_read [2021-11-19 14:14:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_ep_read [2021-11-19 14:14:18,715 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-19 14:14:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-19 14:14:18,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-19 14:14:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-19 14:14:18,715 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 14:14:18,716 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 14:14:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-19 14:14:18,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-19 14:14:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-19 14:14:18,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-19 14:14:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_check_return_value_probe [2021-11-19 14:14:18,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_check_return_value_probe [2021-11-19 14:14:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_set_halt_and_wedge [2021-11-19 14:14:18,717 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_set_halt_and_wedge [2021-11-19 14:14:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:14:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_0 [2021-11-19 14:14:18,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_0 [2021-11-19 14:14:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_check_return_value_probe [2021-11-19 14:14:18,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_check_return_value_probe [2021-11-19 14:14:18,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:14:18,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:14:18,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:14:18,723 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 14:14:18,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 14:14:18,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:14:18,723 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:14:18,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:14:18,725 INFO L130 BoogieDeclarations]: Found specification of procedure set_halt [2021-11-19 14:14:18,725 INFO L138 BoogieDeclarations]: Found implementation of procedure set_halt [2021-11-19 14:14:18,726 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_set_maxpacket_limit [2021-11-19 14:14:18,726 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_set_maxpacket_limit [2021-11-19 14:14:18,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-19 14:14:18,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-19 14:14:18,727 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-19 14:14:18,727 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-19 14:14:18,727 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_set_wedge [2021-11-19 14:14:18,727 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_set_wedge [2021-11-19 14:14:18,727 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_ep_reset [2021-11-19 14:14:18,727 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_ep_reset [2021-11-19 14:14:18,727 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-11-19 14:14:18,728 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-11-19 14:14:18,728 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-11-19 14:14:18,728 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-11-19 14:14:18,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:14:18,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:14:18,728 INFO L130 BoogieDeclarations]: Found specification of procedure stop_activity [2021-11-19 14:14:18,728 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_activity [2021-11-19 14:14:18,729 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-19 14:14:18,729 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-19 14:14:18,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:14:18,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:14:18,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:14:18,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:14:18,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:14:18,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:14:18,730 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_irq [2021-11-19 14:14:18,730 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_irq [2021-11-19 14:14:18,730 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_handle_ep [2021-11-19 14:14:18,730 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_handle_ep [2021-11-19 14:14:18,730 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_start [2021-11-19 14:14:18,731 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_start [2021-11-19 14:14:18,731 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_ep_write [2021-11-19 14:14:18,731 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_ep_write [2021-11-19 14:14:18,731 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_pci_probe [2021-11-19 14:14:18,731 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_pci_probe [2021-11-19 14:14:18,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:14:18,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:14:18,732 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_probe_fin [2021-11-19 14:14:18,732 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_probe_fin [2021-11-19 14:14:18,732 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_fifo_flush [2021-11-19 14:14:18,732 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_fifo_flush [2021-11-19 14:14:18,732 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_done [2021-11-19 14:14:18,732 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_done [2021-11-19 14:14:18,732 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_cancel_dma [2021-11-19 14:14:18,732 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_cancel_dma [2021-11-19 14:14:18,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-19 14:14:18,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-19 14:14:18,733 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_dequeue_all [2021-11-19 14:14:18,733 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_dequeue_all [2021-11-19 14:14:18,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-19 14:14:18,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-19 14:14:18,733 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_probe_init [2021-11-19 14:14:18,734 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_probe_init [2021-11-19 14:14:18,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-19 14:14:18,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-19 14:14:18,734 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-19 14:14:18,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-19 14:14:18,734 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_remove [2021-11-19 14:14:18,734 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_remove [2021-11-19 14:14:18,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-19 14:14:18,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-19 14:14:18,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:14:18,735 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 14:14:18,735 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 14:14:18,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-19 14:14:18,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-19 14:14:18,736 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_fifo_status [2021-11-19 14:14:18,736 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_fifo_status [2021-11-19 14:14:18,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:14:18,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_130 [2021-11-19 14:14:18,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_130 [2021-11-19 14:14:18,736 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_isoc [2021-11-19 14:14:18,736 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_isoc [2021-11-19 14:14:18,737 INFO L130 BoogieDeclarations]: Found specification of procedure buf_state_string [2021-11-19 14:14:18,737 INFO L138 BoogieDeclarations]: Found implementation of procedure buf_state_string [2021-11-19 14:14:18,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:14:18,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:14:18,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:14:18,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:14:18,737 INFO L130 BoogieDeclarations]: Found specification of procedure clear_halt [2021-11-19 14:14:18,737 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_halt [2021-11-19 14:14:18,738 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-11-19 14:14:18,738 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-11-19 14:14:18,738 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_stop [2021-11-19 14:14:18,738 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_stop [2021-11-19 14:14:18,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:14:18,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-19 14:14:18,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-19 14:14:18,739 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_reg_addr [2021-11-19 14:14:18,739 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_reg_addr [2021-11-19 14:14:18,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_net2272 [2021-11-19 14:14:18,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_net2272 [2021-11-19 14:14:18,739 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-19 14:14:18,739 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-19 14:14:18,739 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_plat_probe [2021-11-19 14:14:18,740 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_plat_probe [2021-11-19 14:14:18,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-19 14:14:18,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-19 14:14:18,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-19 14:14:18,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-19 14:14:18,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_irq_register_11_2 [2021-11-19 14:14:18,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_irq_register_11_2 [2021-11-19 14:14:18,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:14:18,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:14:18,741 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_write [2021-11-19 14:14:18,741 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_write [2021-11-19 14:14:18,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-19 14:14:18,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-19 14:14:18,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 14:14:18,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 14:14:18,742 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_plat_remove [2021-11-19 14:14:18,742 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_plat_remove [2021-11-19 14:14:18,742 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-19 14:14:18,742 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-19 14:14:18,742 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_ep0_start [2021-11-19 14:14:18,742 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_ep0_start [2021-11-19 14:14:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-19 14:14:18,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-19 14:14:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-19 14:14:18,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-19 14:14:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-19 14:14:18,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-19 14:14:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_pci_remove [2021-11-19 14:14:18,743 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_pci_remove [2021-11-19 14:14:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:14:18,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:14:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_disable [2021-11-19 14:14:18,744 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_disable [2021-11-19 14:14:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-19 14:14:18,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-19 14:14:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-19 14:14:18,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-19 14:14:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 14:14:18,745 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 14:14:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_handle_stat0_irqs [2021-11-19 14:14:18,745 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_handle_stat0_irqs [2021-11-19 14:14:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-19 14:14:18,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-19 14:14:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:14:18,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:14:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_get_frame [2021-11-19 14:14:18,746 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_get_frame [2021-11-19 14:14:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-19 14:14:18,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-19 14:14:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_102 [2021-11-19 14:14:18,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_102 [2021-11-19 14:14:18,747 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_get_ep_by_addr [2021-11-19 14:14:18,747 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_get_ep_by_addr [2021-11-19 14:14:18,747 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-19 14:14:18,747 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-19 14:14:18,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:14:18,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:14:18,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-19 14:14:18,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-19 14:14:18,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_instance_handler_0_5 [2021-11-19 14:14:18,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_instance_handler_0_5 [2021-11-19 14:14:18,748 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-11-19 14:14:18,748 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-11-19 14:14:18,748 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_kick_dma [2021-11-19 14:14:18,748 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_kick_dma [2021-11-19 14:14:18,749 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_dequeue [2021-11-19 14:14:18,749 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_dequeue [2021-11-19 14:14:18,749 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-19 14:14:18,749 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-19 14:14:18,749 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-11-19 14:14:18,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-11-19 14:14:18,749 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2021-11-19 14:14:18,750 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2021-11-19 14:14:18,750 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2021-11-19 14:14:18,750 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2021-11-19 14:14:18,750 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-11-19 14:14:18,750 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-11-19 14:14:19,789 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:14:19,794 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:14:20,021 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:14:21,896 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 14:14:22,451 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##32: assume 0bv32 == ~bvand32(32bv32, ~zero_extendFrom8To32(assert_out_naking_~tmp~9#1));call write~$Pointer$(4bv64, 0bv64, assert_out_naking_~#descriptor~0#1.base, assert_out_naking_~#descriptor~0#1.offset, 8bv64);call write~$Pointer$(5bv64, 0bv64, assert_out_naking_~#descriptor~0#1.base, ~bvadd64(8bv64, assert_out_naking_~#descriptor~0#1.offset), 8bv64);call write~$Pointer$(6bv64, 0bv64, assert_out_naking_~#descriptor~0#1.base, ~bvadd64(16bv64, assert_out_naking_~#descriptor~0#1.offset), 8bv64);call write~$Pointer$(7bv64, 0bv64, assert_out_naking_~#descriptor~0#1.base, ~bvadd64(24bv64, assert_out_naking_~#descriptor~0#1.offset), 8bv64);call write~intINTTYPE4(131bv32, assert_out_naking_~#descriptor~0#1.base, ~bvadd64(32bv64, assert_out_naking_~#descriptor~0#1.offset), 4bv64);call write~intINTTYPE1(0bv8, assert_out_naking_~#descriptor~0#1.base, ~bvadd64(36bv64, assert_out_naking_~#descriptor~0#1.offset), 1bv64);call assert_out_naking_#t~mem117#1 := read~intINTTYPE1(assert_out_naking_~#descriptor~0#1.base, ~bvadd64(36bv64, assert_out_naking_~#descriptor~0#1.offset), 1bv64); [2021-11-19 14:14:22,451 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume !(0bv64 != assert_out_naking_~tmp___0~4#1); [2021-11-19 14:14:22,451 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##33: assume !(0bv32 == ~bvand32(32bv32, ~zero_extendFrom8To32(assert_out_naking_~tmp~9#1))); [2021-11-19 14:14:22,451 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L4822: SUMMARY for call assert_out_naking_#t~ret118#1 := ldv__builtin_expect(~bvand64(1bv64, ~zero_extendFrom8To64(assert_out_naking_#t~mem117#1)), 0bv64); srcloc: null [2021-11-19 14:14:22,451 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L4822-1: assert_out_naking_~tmp___0~4#1 := assert_out_naking_#t~ret118#1;havoc assert_out_naking_#t~mem117#1;havoc assert_out_naking_#t~ret118#1; [2021-11-19 14:14:22,451 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L4814: call ULTIMATE.dealloc(assert_out_naking_~#descriptor~0#1.base, assert_out_naking_~#descriptor~0#1.offset);havoc assert_out_naking_~#descriptor~0#1.base, assert_out_naking_~#descriptor~0#1.offset; [2021-11-19 14:14:22,452 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L4832: SUMMARY for call net2272_ep_write(assert_out_naking_~ep#1.base, assert_out_naking_~ep#1.offset, 15bv32, 128bv8); srcloc: null [2021-11-19 14:14:22,452 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L4824: goto; [2021-11-19 14:14:22,452 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L4824: assume 0bv64 != assert_out_naking_~tmp___0~4#1;call assert_out_naking_#t~mem119#1.base, assert_out_naking_#t~mem119#1.offset := read~$Pointer$(assert_out_naking_~ep#1.base, ~bvadd64(65bv64, assert_out_naking_~ep#1.offset), 8bv64);call assert_out_naking_#t~mem120#1.base, assert_out_naking_#t~mem120#1.offset := read~$Pointer$(assert_out_naking_#t~mem119#1.base, ~bvadd64(1481bv64, assert_out_naking_#t~mem119#1.offset), 8bv64);call assert_out_naking_#t~mem121#1.base, assert_out_naking_#t~mem121#1.offset := read~$Pointer$(assert_out_naking_~ep#1.base, ~bvadd64(8bv64, assert_out_naking_~ep#1.offset), 8bv64);havoc assert_out_naking_#t~mem119#1.base, assert_out_naking_#t~mem119#1.offset;havoc assert_out_naking_#t~mem120#1.base, assert_out_naking_#t~mem120#1.offset;havoc assert_out_naking_#t~mem121#1.base, assert_out_naking_#t~mem121#1.offset; [2021-11-19 14:14:39,609 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:14:39,633 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:14:39,633 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 14:14:39,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:14:39 BoogieIcfgContainer [2021-11-19 14:14:39,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:14:39,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:14:39,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:14:39,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:14:39,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:14:10" (1/3) ... [2021-11-19 14:14:39,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55422eda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:14:39, skipping insertion in model container [2021-11-19 14:14:39,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:17" (2/3) ... [2021-11-19 14:14:39,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55422eda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:14:39, skipping insertion in model container [2021-11-19 14:14:39,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:14:39" (3/3) ... [2021-11-19 14:14:39,649 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i [2021-11-19 14:14:39,655 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:14:39,655 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2021-11-19 14:14:39,733 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:14:39,739 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 [2021-11-19 14:14:39,739 INFO L340 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2021-11-19 14:14:39,852 INFO L276 IsEmpty]: Start isEmpty. Operand has 2489 states, 1615 states have (on average 1.3089783281733747) internal successors, (2114), 1705 states have internal predecessors, (2114), 711 states have call successors, (711), 135 states have call predecessors, (711), 134 states have return successors, (703), 687 states have call predecessors, (703), 703 states have call successors, (703) [2021-11-19 14:14:39,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-19 14:14:39,865 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:14:39,866 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:14:39,867 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 26 more)] === [2021-11-19 14:14:39,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:14:39,872 INFO L85 PathProgramCache]: Analyzing trace with hash 139258297, now seen corresponding path program 1 times [2021-11-19 14:14:39,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:14:39,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567158172] [2021-11-19 14:14:39,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:14:39,890 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:14:39,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:14:39,895 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:14:39,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:14:41,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:14:41,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 1259 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:14:41,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:14:41,826 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:14:41,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:14:42,137 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:14:42,138 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:14:42,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567158172] [2021-11-19 14:14:42,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1567158172] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:14:42,139 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:14:42,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:14:42,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515610461] [2021-11-19 14:14:42,141 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:14:42,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:14:42,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:14:42,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:14:42,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:14:42,186 INFO L87 Difference]: Start difference. First operand has 2489 states, 1615 states have (on average 1.3089783281733747) internal successors, (2114), 1705 states have internal predecessors, (2114), 711 states have call successors, (711), 135 states have call predecessors, (711), 134 states have return successors, (703), 687 states have call predecessors, (703), 703 states have call successors, (703) Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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) [2021-11-19 14:14:42,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:14:42,810 INFO L93 Difference]: Finished difference Result 7342 states and 10841 transitions. [2021-11-19 14:14:42,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:14:42,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 66 [2021-11-19 14:14:42,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:14:42,880 INFO L225 Difference]: With dead ends: 7342 [2021-11-19 14:14:42,880 INFO L226 Difference]: Without dead ends: 4846 [2021-11-19 14:14:43,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:14:43,016 INFO L933 BasicCegarLoop]: 4338 mSDtfsCounter, 3345 mSDsluCounter, 7864 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3347 SdHoareTripleChecker+Valid, 12202 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:14:43,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3347 Valid, 12202 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:14:43,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4846 states. [2021-11-19 14:14:43,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4846 to 4649. [2021-11-19 14:14:43,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4649 states, 3036 states have (on average 1.2921607378129116) internal successors, (3923), 3180 states have internal predecessors, (3923), 1341 states have call successors, (1341), 248 states have call predecessors, (1341), 244 states have return successors, (1397), 1299 states have call predecessors, (1397), 1339 states have call successors, (1397) [2021-11-19 14:14:43,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4649 states to 4649 states and 6661 transitions. [2021-11-19 14:14:43,445 INFO L78 Accepts]: Start accepts. Automaton has 4649 states and 6661 transitions. Word has length 66 [2021-11-19 14:14:43,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:14:43,446 INFO L470 AbstractCegarLoop]: Abstraction has 4649 states and 6661 transitions. [2021-11-19 14:14:43,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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) [2021-11-19 14:14:43,447 INFO L276 IsEmpty]: Start isEmpty. Operand 4649 states and 6661 transitions. [2021-11-19 14:14:43,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-19 14:14:43,453 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:14:43,453 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:14:43,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:14:43,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:14:43,679 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:14:43,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:14:43,680 INFO L85 PathProgramCache]: Analyzing trace with hash -953690728, now seen corresponding path program 1 times [2021-11-19 14:14:43,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:14:43,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [742522410] [2021-11-19 14:14:43,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:14:43,683 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:14:43,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:14:43,687 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:14:43,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:14:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:14:45,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 1268 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:14:45,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:14:45,596 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:14:45,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:14:45,908 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:14:45,908 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:14:45,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [742522410] [2021-11-19 14:14:45,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [742522410] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:14:45,909 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:14:45,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:14:45,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330967090] [2021-11-19 14:14:45,909 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:14:45,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:14:45,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:14:45,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:14:45,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:14:45,912 INFO L87 Difference]: Start difference. First operand 4649 states and 6661 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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) [2021-11-19 14:14:46,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:14:46,351 INFO L93 Difference]: Finished difference Result 4649 states and 6661 transitions. [2021-11-19 14:14:46,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:14:46,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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 72 [2021-11-19 14:14:46,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:14:46,410 INFO L225 Difference]: With dead ends: 4649 [2021-11-19 14:14:46,410 INFO L226 Difference]: Without dead ends: 4647 [2021-11-19 14:14:46,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:14:46,416 INFO L933 BasicCegarLoop]: 3464 mSDtfsCounter, 3412 mSDsluCounter, 3462 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3414 SdHoareTripleChecker+Valid, 6926 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:14:46,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3414 Valid, 6926 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:14:46,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4647 states. [2021-11-19 14:14:46,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4647 to 4647. [2021-11-19 14:14:46,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4647 states, 3035 states have (on average 1.2919275123558485) internal successors, (3921), 3178 states have internal predecessors, (3921), 1341 states have call successors, (1341), 248 states have call predecessors, (1341), 244 states have return successors, (1397), 1299 states have call predecessors, (1397), 1339 states have call successors, (1397) [2021-11-19 14:14:46,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4647 states to 4647 states and 6659 transitions. [2021-11-19 14:14:46,887 INFO L78 Accepts]: Start accepts. Automaton has 4647 states and 6659 transitions. Word has length 72 [2021-11-19 14:14:46,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:14:46,890 INFO L470 AbstractCegarLoop]: Abstraction has 4647 states and 6659 transitions. [2021-11-19 14:14:46,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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) [2021-11-19 14:14:46,890 INFO L276 IsEmpty]: Start isEmpty. Operand 4647 states and 6659 transitions. [2021-11-19 14:14:46,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-19 14:14:46,899 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:14:46,899 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:14:46,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:14:47,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:14:47,123 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:14:47,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:14:47,124 INFO L85 PathProgramCache]: Analyzing trace with hash -858518923, now seen corresponding path program 1 times [2021-11-19 14:14:47,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:14:47,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1853247013] [2021-11-19 14:14:47,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:14:47,127 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:14:47,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:14:47,130 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:14:47,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:14:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:14:48,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 1277 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:14:48,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:14:48,819 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:14:48,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:14:49,114 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:14:49,114 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:14:49,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1853247013] [2021-11-19 14:14:49,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1853247013] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:14:49,114 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:14:49,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:14:49,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288899179] [2021-11-19 14:14:49,115 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:14:49,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:14:49,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:14:49,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:14:49,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:14:49,117 INFO L87 Difference]: Start difference. First operand 4647 states and 6659 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2021-11-19 14:14:49,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:14:49,472 INFO L93 Difference]: Finished difference Result 4647 states and 6659 transitions. [2021-11-19 14:14:49,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:14:49,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 78 [2021-11-19 14:14:49,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:14:49,518 INFO L225 Difference]: With dead ends: 4647 [2021-11-19 14:14:49,519 INFO L226 Difference]: Without dead ends: 4645 [2021-11-19 14:14:49,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:14:49,524 INFO L933 BasicCegarLoop]: 3462 mSDtfsCounter, 3401 mSDsluCounter, 6920 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3403 SdHoareTripleChecker+Valid, 10382 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:14:49,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3403 Valid, 10382 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:14:49,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4645 states. [2021-11-19 14:14:49,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4645 to 4645. [2021-11-19 14:14:49,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4645 states, 3034 states have (on average 1.2916941331575478) internal successors, (3919), 3176 states have internal predecessors, (3919), 1341 states have call successors, (1341), 248 states have call predecessors, (1341), 244 states have return successors, (1397), 1299 states have call predecessors, (1397), 1339 states have call successors, (1397) [2021-11-19 14:14:49,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4645 states to 4645 states and 6657 transitions. [2021-11-19 14:14:49,894 INFO L78 Accepts]: Start accepts. Automaton has 4645 states and 6657 transitions. Word has length 78 [2021-11-19 14:14:49,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:14:49,895 INFO L470 AbstractCegarLoop]: Abstraction has 4645 states and 6657 transitions. [2021-11-19 14:14:49,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2021-11-19 14:14:49,896 INFO L276 IsEmpty]: Start isEmpty. Operand 4645 states and 6657 transitions. [2021-11-19 14:14:49,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-19 14:14:49,898 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:14:49,898 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:14:49,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:14:50,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:14:50,111 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:14:50,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:14:50,112 INFO L85 PathProgramCache]: Analyzing trace with hash -320555975, now seen corresponding path program 1 times [2021-11-19 14:14:50,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:14:50,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2089530760] [2021-11-19 14:14:50,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:14:50,115 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:14:50,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:14:50,116 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:14:50,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:14:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:14:51,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 1286 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:14:51,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:14:52,027 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:14:52,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:14:52,346 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:14:52,346 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:14:52,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2089530760] [2021-11-19 14:14:52,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2089530760] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:14:52,346 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:14:52,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:14:52,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850811447] [2021-11-19 14:14:52,347 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:14:52,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:14:52,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:14:52,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:14:52,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:14:52,348 INFO L87 Difference]: Start difference. First operand 4645 states and 6657 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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) [2021-11-19 14:14:52,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:14:52,676 INFO L93 Difference]: Finished difference Result 4645 states and 6657 transitions. [2021-11-19 14:14:52,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:14:52,677 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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 84 [2021-11-19 14:14:52,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:14:52,719 INFO L225 Difference]: With dead ends: 4645 [2021-11-19 14:14:52,719 INFO L226 Difference]: Without dead ends: 4643 [2021-11-19 14:14:52,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:14:52,724 INFO L933 BasicCegarLoop]: 3460 mSDtfsCounter, 3396 mSDsluCounter, 3458 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3398 SdHoareTripleChecker+Valid, 6918 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:14:52,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3398 Valid, 6918 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:14:52,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4643 states. [2021-11-19 14:14:53,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4643 to 4643. [2021-11-19 14:14:53,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4643 states, 3033 states have (on average 1.2914606000659412) internal successors, (3917), 3174 states have internal predecessors, (3917), 1341 states have call successors, (1341), 248 states have call predecessors, (1341), 244 states have return successors, (1397), 1299 states have call predecessors, (1397), 1339 states have call successors, (1397) [2021-11-19 14:14:53,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4643 states to 4643 states and 6655 transitions. [2021-11-19 14:14:53,167 INFO L78 Accepts]: Start accepts. Automaton has 4643 states and 6655 transitions. Word has length 84 [2021-11-19 14:14:53,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:14:53,168 INFO L470 AbstractCegarLoop]: Abstraction has 4643 states and 6655 transitions. [2021-11-19 14:14:53,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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) [2021-11-19 14:14:53,170 INFO L276 IsEmpty]: Start isEmpty. Operand 4643 states and 6655 transitions. [2021-11-19 14:14:53,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-19 14:14:53,173 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:14:53,174 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:14:53,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:14:53,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:14:53,399 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:14:53,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:14:53,400 INFO L85 PathProgramCache]: Analyzing trace with hash -2018644156, now seen corresponding path program 1 times [2021-11-19 14:14:53,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:14:53,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1116298059] [2021-11-19 14:14:53,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:14:53,402 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:14:53,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:14:53,403 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:14:53,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:14:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:14:54,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 1295 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:14:54,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:14:55,047 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:14:55,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:14:55,345 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:14:55,345 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:14:55,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1116298059] [2021-11-19 14:14:55,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1116298059] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:14:55,346 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:14:55,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:14:55,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181976518] [2021-11-19 14:14:55,346 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:14:55,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:14:55,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:14:55,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:14:55,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:14:55,348 INFO L87 Difference]: Start difference. First operand 4643 states and 6655 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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) [2021-11-19 14:14:55,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:14:55,736 INFO L93 Difference]: Finished difference Result 4643 states and 6655 transitions. [2021-11-19 14:14:55,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:14:55,737 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 90 [2021-11-19 14:14:55,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:14:55,783 INFO L225 Difference]: With dead ends: 4643 [2021-11-19 14:14:55,783 INFO L226 Difference]: Without dead ends: 4641 [2021-11-19 14:14:55,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:14:55,788 INFO L933 BasicCegarLoop]: 3458 mSDtfsCounter, 3385 mSDsluCounter, 6912 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3387 SdHoareTripleChecker+Valid, 10370 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:14:55,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3387 Valid, 10370 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:14:55,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4641 states. [2021-11-19 14:14:56,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4641 to 4641. [2021-11-19 14:14:56,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4641 states, 3032 states have (on average 1.29122691292876) internal successors, (3915), 3172 states have internal predecessors, (3915), 1341 states have call successors, (1341), 248 states have call predecessors, (1341), 244 states have return successors, (1397), 1299 states have call predecessors, (1397), 1339 states have call successors, (1397) [2021-11-19 14:14:56,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4641 states to 4641 states and 6653 transitions. [2021-11-19 14:14:56,205 INFO L78 Accepts]: Start accepts. Automaton has 4641 states and 6653 transitions. Word has length 90 [2021-11-19 14:14:56,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:14:56,207 INFO L470 AbstractCegarLoop]: Abstraction has 4641 states and 6653 transitions. [2021-11-19 14:14:56,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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) [2021-11-19 14:14:56,208 INFO L276 IsEmpty]: Start isEmpty. Operand 4641 states and 6653 transitions. [2021-11-19 14:14:56,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-19 14:14:56,217 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:14:56,218 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:14:56,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:14:56,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:14:56,443 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:14:56,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:14:56,444 INFO L85 PathProgramCache]: Analyzing trace with hash 330997784, now seen corresponding path program 1 times [2021-11-19 14:14:56,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:14:56,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [140739137] [2021-11-19 14:14:56,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:14:56,447 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:14:56,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:14:56,449 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:14:56,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:14:57,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:14:57,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 1304 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:14:57,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:14:58,354 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:14:58,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:14:58,655 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:14:58,656 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:14:58,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [140739137] [2021-11-19 14:14:58,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [140739137] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:14:58,656 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:14:58,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:14:58,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847068516] [2021-11-19 14:14:58,657 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:14:58,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:14:58,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:14:58,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:14:58,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:14:58,658 INFO L87 Difference]: Start difference. First operand 4641 states and 6653 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2021-11-19 14:14:58,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:14:58,990 INFO L93 Difference]: Finished difference Result 4641 states and 6653 transitions. [2021-11-19 14:14:58,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:14:58,991 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 96 [2021-11-19 14:14:58,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:14:59,050 INFO L225 Difference]: With dead ends: 4641 [2021-11-19 14:14:59,050 INFO L226 Difference]: Without dead ends: 4639 [2021-11-19 14:14:59,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:14:59,055 INFO L933 BasicCegarLoop]: 3456 mSDtfsCounter, 3377 mSDsluCounter, 6908 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3379 SdHoareTripleChecker+Valid, 10364 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:14:59,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3379 Valid, 10364 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:14:59,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2021-11-19 14:14:59,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2021-11-19 14:14:59,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 3031 states have (on average 1.2909930715935334) internal successors, (3913), 3170 states have internal predecessors, (3913), 1341 states have call successors, (1341), 248 states have call predecessors, (1341), 244 states have return successors, (1397), 1299 states have call predecessors, (1397), 1339 states have call successors, (1397) [2021-11-19 14:14:59,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 6651 transitions. [2021-11-19 14:14:59,420 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 6651 transitions. Word has length 96 [2021-11-19 14:14:59,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:14:59,421 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 6651 transitions. [2021-11-19 14:14:59,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2021-11-19 14:14:59,421 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 6651 transitions. [2021-11-19 14:14:59,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-19 14:14:59,423 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:14:59,424 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-19 14:14:59,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:14:59,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:14:59,647 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:14:59,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:14:59,648 INFO L85 PathProgramCache]: Analyzing trace with hash 747441744, now seen corresponding path program 1 times [2021-11-19 14:14:59,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:14:59,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [719919132] [2021-11-19 14:14:59,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:14:59,651 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:14:59,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:14:59,652 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:14:59,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:15:00,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:00,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 1476 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 14:15:00,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:15:01,498 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 95 proven. 3 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-19 14:15:01,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:15:02,338 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-19 14:15:02,338 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:15:02,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [719919132] [2021-11-19 14:15:02,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [719919132] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:15:02,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2116219176] [2021-11-19 14:15:02,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:02,339 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:15:02,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:15:02,342 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:15:02,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-19 14:15:03,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:03,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 1476 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 14:15:03,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:15:04,175 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-19 14:15:04,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:15:04,629 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-19 14:15:04,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2116219176] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:15:04,629 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:15:04,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [8, 8] total 14 [2021-11-19 14:15:04,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509898497] [2021-11-19 14:15:04,630 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:15:04,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:15:04,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:15:04,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:15:04,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:15:04,631 INFO L87 Difference]: Start difference. First operand 4639 states and 6651 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 14:15:06,728 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:15:08,732 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:15:16,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:15:16,628 INFO L93 Difference]: Finished difference Result 11425 states and 16430 transitions. [2021-11-19 14:15:16,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:15:16,629 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 120 [2021-11-19 14:15:16,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:15:16,683 INFO L225 Difference]: With dead ends: 11425 [2021-11-19 14:15:16,683 INFO L226 Difference]: Without dead ends: 6807 [2021-11-19 14:15:16,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 464 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-11-19 14:15:16,726 INFO L933 BasicCegarLoop]: 3849 mSDtfsCounter, 2994 mSDsluCounter, 14906 mSDsCounter, 0 mSdLazyCounter, 2448 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2998 SdHoareTripleChecker+Valid, 18755 SdHoareTripleChecker+Invalid, 2457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2448 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:15:16,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2998 Valid, 18755 Invalid, 2457 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 2448 Invalid, 2 Unknown, 0 Unchecked, 11.2s Time] [2021-11-19 14:15:16,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6807 states. [2021-11-19 14:15:17,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6807 to 6747. [2021-11-19 14:15:17,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6747 states, 4395 states have (on average 1.2814562002275314) internal successors, (5632), 4572 states have internal predecessors, (5632), 1916 states have call successors, (1916), 419 states have call predecessors, (1916), 413 states have return successors, (2021), 1860 states have call predecessors, (2021), 1914 states have call successors, (2021) [2021-11-19 14:15:17,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6747 states to 6747 states and 9569 transitions. [2021-11-19 14:15:17,473 INFO L78 Accepts]: Start accepts. Automaton has 6747 states and 9569 transitions. Word has length 120 [2021-11-19 14:15:17,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:15:17,474 INFO L470 AbstractCegarLoop]: Abstraction has 6747 states and 9569 transitions. [2021-11-19 14:15:17,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 14:15:17,475 INFO L276 IsEmpty]: Start isEmpty. Operand 6747 states and 9569 transitions. [2021-11-19 14:15:17,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-19 14:15:17,477 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:15:17,478 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-19 14:15:17,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2021-11-19 14:15:17,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:15:17,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:15:17,901 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:15:17,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:15:17,902 INFO L85 PathProgramCache]: Analyzing trace with hash 747501326, now seen corresponding path program 1 times [2021-11-19 14:15:17,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:15:17,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1250370980] [2021-11-19 14:15:17,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:17,904 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:15:17,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:15:17,905 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:15:17,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 14:15:19,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:19,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 1476 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 14:15:19,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:15:19,845 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 95 proven. 3 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-19 14:15:19,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:15:20,563 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-19 14:15:20,563 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:15:20,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1250370980] [2021-11-19 14:15:20,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1250370980] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:15:20,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [183937092] [2021-11-19 14:15:20,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:20,564 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:15:20,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:15:20,571 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:15:20,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-19 14:15:23,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:23,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 1476 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-19 14:15:23,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:15:24,494 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2021-11-19 14:15:24,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:15:24,972 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-11-19 14:15:24,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [183937092] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:15:24,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:15:24,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 8, 6] total 13 [2021-11-19 14:15:24,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558590843] [2021-11-19 14:15:24,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:15:24,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:15:24,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:15:24,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:15:24,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-11-19 14:15:24,974 INFO L87 Difference]: Start difference. First operand 6747 states and 9569 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-19 14:15:25,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:15:25,807 INFO L93 Difference]: Finished difference Result 14591 states and 20841 transitions. [2021-11-19 14:15:25,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:15:25,809 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 120 [2021-11-19 14:15:25,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:15:25,863 INFO L225 Difference]: With dead ends: 14591 [2021-11-19 14:15:25,864 INFO L226 Difference]: Without dead ends: 7861 [2021-11-19 14:15:25,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 465 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:15:25,913 INFO L933 BasicCegarLoop]: 4357 mSDtfsCounter, 550 mSDsluCounter, 16646 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 21003 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:15:25,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [776 Valid, 21003 Invalid, 12 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:15:25,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7861 states. [2021-11-19 14:15:26,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7861 to 6747. [2021-11-19 14:15:26,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6747 states, 4395 states have (on average 1.2812286689419796) internal successors, (5631), 4571 states have internal predecessors, (5631), 1916 states have call successors, (1916), 419 states have call predecessors, (1916), 413 states have return successors, (2021), 1860 states have call predecessors, (2021), 1914 states have call successors, (2021) [2021-11-19 14:15:26,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6747 states to 6747 states and 9568 transitions. [2021-11-19 14:15:26,655 INFO L78 Accepts]: Start accepts. Automaton has 6747 states and 9568 transitions. Word has length 120 [2021-11-19 14:15:26,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:15:26,656 INFO L470 AbstractCegarLoop]: Abstraction has 6747 states and 9568 transitions. [2021-11-19 14:15:26,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-19 14:15:26,656 INFO L276 IsEmpty]: Start isEmpty. Operand 6747 states and 9568 transitions. [2021-11-19 14:15:26,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-19 14:15:26,660 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:15:26,660 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-19 14:15:26,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-11-19 14:15:26,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 14:15:27,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:15:27,077 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:15:27,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:15:27,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1178948917, now seen corresponding path program 1 times [2021-11-19 14:15:27,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:15:27,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1231766244] [2021-11-19 14:15:27,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:27,079 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:15:27,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:15:27,080 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:15:27,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 14:15:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:28,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 1487 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:15:28,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:15:28,668 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-19 14:15:28,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:15:28,940 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-19 14:15:28,941 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:15:28,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1231766244] [2021-11-19 14:15:28,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1231766244] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:15:28,941 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:15:28,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 14:15:28,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32090417] [2021-11-19 14:15:28,942 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:15:28,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:15:28,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:15:28,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:15:28,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:15:28,943 INFO L87 Difference]: Start difference. First operand 6747 states and 9568 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2021-11-19 14:15:29,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:15:29,387 INFO L93 Difference]: Finished difference Result 6781 states and 9608 transitions. [2021-11-19 14:15:29,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:15:29,388 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 124 [2021-11-19 14:15:29,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:15:29,428 INFO L225 Difference]: With dead ends: 6781 [2021-11-19 14:15:29,428 INFO L226 Difference]: Without dead ends: 6779 [2021-11-19 14:15:29,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:15:29,438 INFO L933 BasicCegarLoop]: 3456 mSDtfsCounter, 76 mSDsluCounter, 6906 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 10362 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:15:29,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 10362 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:15:29,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6779 states. [2021-11-19 14:15:30,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6779 to 6751. [2021-11-19 14:15:30,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6751 states, 4399 states have (on average 1.2805182996135485) internal successors, (5633), 4575 states have internal predecessors, (5633), 1916 states have call successors, (1916), 419 states have call predecessors, (1916), 413 states have return successors, (2021), 1860 states have call predecessors, (2021), 1914 states have call successors, (2021) [2021-11-19 14:15:30,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6751 states to 6751 states and 9570 transitions. [2021-11-19 14:15:30,075 INFO L78 Accepts]: Start accepts. Automaton has 6751 states and 9570 transitions. Word has length 124 [2021-11-19 14:15:30,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:15:30,076 INFO L470 AbstractCegarLoop]: Abstraction has 6751 states and 9570 transitions. [2021-11-19 14:15:30,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2021-11-19 14:15:30,077 INFO L276 IsEmpty]: Start isEmpty. Operand 6751 states and 9570 transitions. [2021-11-19 14:15:30,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-19 14:15:30,079 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:15:30,079 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 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] [2021-11-19 14:15:30,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 14:15:30,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:15:30,303 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_net_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:15:30,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:15:30,304 INFO L85 PathProgramCache]: Analyzing trace with hash 346816111, now seen corresponding path program 1 times [2021-11-19 14:15:30,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:15:30,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1099166005] [2021-11-19 14:15:30,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:30,305 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:15:30,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:15:30,307 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:15:30,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 14:15:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:31,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-19 14:15:31,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:15:32,451 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 59 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-19 14:15:32,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:15:33,163 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-19 14:15:33,163 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:15:33,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1099166005] [2021-11-19 14:15:33,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1099166005] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:15:33,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2133999242] [2021-11-19 14:15:33,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:33,164 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:15:33,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:15:33,171 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:15:33,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-11-19 14:15:34,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:34,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:15:34,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:15:34,514 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2021-11-19 14:15:34,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:15:34,858 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-11-19 14:15:34,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2133999242] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:15:34,859 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:15:34,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [19, 19] total 24 [2021-11-19 14:15:34,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059510564] [2021-11-19 14:15:34,860 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:15:34,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:15:34,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:15:34,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:15:34,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=502, Unknown=0, NotChecked=0, Total=552 [2021-11-19 14:15:34,862 INFO L87 Difference]: Start difference. First operand 6751 states and 9570 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-19 14:15:38,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:15:38,096 INFO L93 Difference]: Finished difference Result 13475 states and 19109 transitions. [2021-11-19 14:15:38,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:15:38,097 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 113 [2021-11-19 14:15:38,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:15:38,144 INFO L225 Difference]: With dead ends: 13475 [2021-11-19 14:15:38,144 INFO L226 Difference]: Without dead ends: 6745 [2021-11-19 14:15:38,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 426 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=50, Invalid=502, Unknown=0, NotChecked=0, Total=552 [2021-11-19 14:15:38,187 INFO L933 BasicCegarLoop]: 3451 mSDtfsCounter, 5477 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5477 SdHoareTripleChecker+Valid, 3451 SdHoareTripleChecker+Invalid, 1403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1402 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:15:38,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5477 Valid, 3451 Invalid, 1403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1402 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-19 14:15:38,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6745 states. [2021-11-19 14:15:38,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6745 to 6745. [2021-11-19 14:15:38,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6745 states, 4394 states have (on average 1.2799271734182978) internal successors, (5624), 4569 states have internal predecessors, (5624), 1916 states have call successors, (1916), 419 states have call predecessors, (1916), 413 states have return successors, (2021), 1860 states have call predecessors, (2021), 1914 states have call successors, (2021) [2021-11-19 14:15:38,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6745 states to 6745 states and 9561 transitions. [2021-11-19 14:15:38,974 INFO L78 Accepts]: Start accepts. Automaton has 6745 states and 9561 transitions. Word has length 113 [2021-11-19 14:15:38,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:15:38,978 INFO L470 AbstractCegarLoop]: Abstraction has 6745 states and 9561 transitions. [2021-11-19 14:15:38,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-19 14:15:38,978 INFO L276 IsEmpty]: Start isEmpty. Operand 6745 states and 9561 transitions. [2021-11-19 14:15:38,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-19 14:15:38,981 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:15:38,981 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:15:38,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2021-11-19 14:15:39,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 14:15:39,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:15:39,397 INFO L402 AbstractCegarLoop]: === Iteration 11 === 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 26 more)] === [2021-11-19 14:15:39,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:15:39,398 INFO L85 PathProgramCache]: Analyzing trace with hash 2092475219, now seen corresponding path program 1 times [2021-11-19 14:15:39,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:15:39,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [155065143] [2021-11-19 14:15:39,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:39,400 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:15:39,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:15:39,402 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:15:39,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 14:15:40,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:40,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 1313 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:15:40,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:15:41,254 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:15:41,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:15:41,539 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:15:41,540 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:15:41,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [155065143] [2021-11-19 14:15:41,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [155065143] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:15:41,540 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:15:41,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:15:41,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389470617] [2021-11-19 14:15:41,540 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:15:41,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:15:41,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:15:41,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:15:41,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:15:41,542 INFO L87 Difference]: Start difference. First operand 6745 states and 9561 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) [2021-11-19 14:15:42,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:15:42,030 INFO L93 Difference]: Finished difference Result 6745 states and 9561 transitions. [2021-11-19 14:15:42,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:15:42,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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 102 [2021-11-19 14:15:42,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:15:42,072 INFO L225 Difference]: With dead ends: 6745 [2021-11-19 14:15:42,072 INFO L226 Difference]: Without dead ends: 6743 [2021-11-19 14:15:42,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:15:42,078 INFO L933 BasicCegarLoop]: 3448 mSDtfsCounter, 3363 mSDsluCounter, 6892 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3365 SdHoareTripleChecker+Valid, 10340 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:15:42,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3365 Valid, 10340 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:15:42,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6743 states. [2021-11-19 14:15:42,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6743 to 6743. [2021-11-19 14:15:42,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6743 states, 4393 states have (on average 1.2797632597313908) internal successors, (5622), 4567 states have internal predecessors, (5622), 1916 states have call successors, (1916), 419 states have call predecessors, (1916), 413 states have return successors, (2021), 1860 states have call predecessors, (2021), 1914 states have call successors, (2021) [2021-11-19 14:15:42,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6743 states to 6743 states and 9559 transitions. [2021-11-19 14:15:42,692 INFO L78 Accepts]: Start accepts. Automaton has 6743 states and 9559 transitions. Word has length 102 [2021-11-19 14:15:42,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:15:42,695 INFO L470 AbstractCegarLoop]: Abstraction has 6743 states and 9559 transitions. [2021-11-19 14:15:42,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) [2021-11-19 14:15:42,696 INFO L276 IsEmpty]: Start isEmpty. Operand 6743 states and 9559 transitions. [2021-11-19 14:15:42,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-19 14:15:42,699 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:15:42,699 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-19 14:15:42,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-19 14:15:42,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:15:42,915 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting kzallocErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:15:42,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:15:42,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1075941935, now seen corresponding path program 1 times [2021-11-19 14:15:42,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:15:42,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516973411] [2021-11-19 14:15:42,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:42,918 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:15:42,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:15:42,920 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:15:42,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-19 14:15:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:44,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 1494 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:15:44,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:15:45,041 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-19 14:15:45,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:15:45,403 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-19 14:15:45,403 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:15:45,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1516973411] [2021-11-19 14:15:45,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1516973411] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:15:45,404 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:15:45,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-19 14:15:45,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834607504] [2021-11-19 14:15:45,404 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:15:45,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:15:45,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:15:45,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:15:45,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:15:45,406 INFO L87 Difference]: Start difference. First operand 6743 states and 9559 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-19 14:15:48,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:15:48,286 INFO L93 Difference]: Finished difference Result 13455 states and 19285 transitions. [2021-11-19 14:15:48,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:15:48,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 128 [2021-11-19 14:15:48,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:15:48,329 INFO L225 Difference]: With dead ends: 13455 [2021-11-19 14:15:48,329 INFO L226 Difference]: Without dead ends: 6733 [2021-11-19 14:15:48,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:15:48,366 INFO L933 BasicCegarLoop]: 3444 mSDtfsCounter, 5383 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5383 SdHoareTripleChecker+Valid, 3444 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1389 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:15:48,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5383 Valid, 3444 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1389 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-19 14:15:48,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6733 states. [2021-11-19 14:15:49,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6733 to 6733. [2021-11-19 14:15:49,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6733 states, 4384 states have (on average 1.2785127737226278) internal successors, (5605), 4557 states have internal predecessors, (5605), 1916 states have call successors, (1916), 419 states have call predecessors, (1916), 413 states have return successors, (2021), 1860 states have call predecessors, (2021), 1914 states have call successors, (2021) [2021-11-19 14:15:49,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6733 states to 6733 states and 9542 transitions. [2021-11-19 14:15:49,061 INFO L78 Accepts]: Start accepts. Automaton has 6733 states and 9542 transitions. Word has length 128 [2021-11-19 14:15:49,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:15:49,062 INFO L470 AbstractCegarLoop]: Abstraction has 6733 states and 9542 transitions. [2021-11-19 14:15:49,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-19 14:15:49,063 INFO L276 IsEmpty]: Start isEmpty. Operand 6733 states and 9542 transitions. [2021-11-19 14:15:49,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-19 14:15:49,066 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:15:49,066 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 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] [2021-11-19 14:15:49,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-19 14:15:49,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:15:49,291 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:15:49,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:15:49,292 INFO L85 PathProgramCache]: Analyzing trace with hash -235696038, now seen corresponding path program 1 times [2021-11-19 14:15:49,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:15:49,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [345667466] [2021-11-19 14:15:49,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:49,294 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:15:49,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:15:49,297 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:15:49,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-19 14:15:50,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:50,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 1410 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-19 14:15:50,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:15:51,542 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 59 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-19 14:15:51,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:15:52,248 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-19 14:15:52,248 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:15:52,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [345667466] [2021-11-19 14:15:52,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [345667466] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:15:52,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [201577394] [2021-11-19 14:15:52,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:52,250 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:15:52,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:15:52,251 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:15:52,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-11-19 14:15:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:56,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 1410 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:15:56,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:15:56,729 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-19 14:15:56,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:15:57,207 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-19 14:15:57,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [201577394] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:15:57,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:15:57,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [19, 19, 14] total 22 [2021-11-19 14:15:57,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647974392] [2021-11-19 14:15:57,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:15:57,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 14:15:57,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:15:57,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 14:15:57,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2021-11-19 14:15:57,211 INFO L87 Difference]: Start difference. First operand 6733 states and 9542 transitions. Second operand has 14 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 6 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2021-11-19 14:15:59,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:15:59,182 INFO L93 Difference]: Finished difference Result 12952 states and 18298 transitions. [2021-11-19 14:15:59,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-19 14:15:59,183 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 6 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 119 [2021-11-19 14:15:59,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:15:59,225 INFO L225 Difference]: With dead ends: 12952 [2021-11-19 14:15:59,226 INFO L226 Difference]: Without dead ends: 6786 [2021-11-19 14:15:59,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 452 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=111, Invalid=759, Unknown=0, NotChecked=0, Total=870 [2021-11-19 14:15:59,260 INFO L933 BasicCegarLoop]: 3428 mSDtfsCounter, 45 mSDsluCounter, 40911 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 44339 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:15:59,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 44339 Invalid, 757 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [171 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-19 14:15:59,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6786 states. [2021-11-19 14:15:59,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6786 to 6757. [2021-11-19 14:15:59,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6757 states, 4400 states have (on average 1.2775) internal successors, (5621), 4573 states have internal predecessors, (5621), 1924 states have call successors, (1924), 419 states have call predecessors, (1924), 413 states have return successors, (2029), 1868 states have call predecessors, (2029), 1922 states have call successors, (2029) [2021-11-19 14:15:59,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6757 states to 6757 states and 9574 transitions. [2021-11-19 14:15:59,985 INFO L78 Accepts]: Start accepts. Automaton has 6757 states and 9574 transitions. Word has length 119 [2021-11-19 14:15:59,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:15:59,986 INFO L470 AbstractCegarLoop]: Abstraction has 6757 states and 9574 transitions. [2021-11-19 14:15:59,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 6 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2021-11-19 14:15:59,986 INFO L276 IsEmpty]: Start isEmpty. Operand 6757 states and 9574 transitions. [2021-11-19 14:15:59,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-19 14:15:59,989 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:15:59,989 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:16:00,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-19 14:16:00,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2021-11-19 14:16:00,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:16:00,412 INFO L402 AbstractCegarLoop]: === Iteration 14 === 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 26 more)] === [2021-11-19 14:16:00,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:16:00,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1891384246, now seen corresponding path program 1 times [2021-11-19 14:16:00,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:16:00,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [965840557] [2021-11-19 14:16:00,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:16:00,415 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:16:00,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:16:00,417 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:16:00,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-19 14:16:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:16:01,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 1322 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:16:01,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:16:02,281 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:16:02,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:16:02,656 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:16:02,656 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:16:02,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [965840557] [2021-11-19 14:16:02,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [965840557] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:16:02,657 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:16:02,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:16:02,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742922999] [2021-11-19 14:16:02,657 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:16:02,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:16:02,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:16:02,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:16:02,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:16:02,659 INFO L87 Difference]: Start difference. First operand 6757 states and 9574 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2021-11-19 14:16:03,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:16:03,098 INFO L93 Difference]: Finished difference Result 6757 states and 9574 transitions. [2021-11-19 14:16:03,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:16:03,099 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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 108 [2021-11-19 14:16:03,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:16:03,132 INFO L225 Difference]: With dead ends: 6757 [2021-11-19 14:16:03,132 INFO L226 Difference]: Without dead ends: 6755 [2021-11-19 14:16:03,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:16:03,137 INFO L933 BasicCegarLoop]: 3441 mSDtfsCounter, 3361 mSDsluCounter, 3435 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3363 SdHoareTripleChecker+Valid, 6876 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:16:03,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3363 Valid, 6876 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:16:03,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6755 states. [2021-11-19 14:16:03,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6755 to 6755. [2021-11-19 14:16:03,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6755 states, 4399 states have (on average 1.277335758126847) internal successors, (5619), 4571 states have internal predecessors, (5619), 1924 states have call successors, (1924), 419 states have call predecessors, (1924), 413 states have return successors, (2029), 1868 states have call predecessors, (2029), 1922 states have call successors, (2029) [2021-11-19 14:16:03,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6755 states to 6755 states and 9572 transitions. [2021-11-19 14:16:03,791 INFO L78 Accepts]: Start accepts. Automaton has 6755 states and 9572 transitions. Word has length 108 [2021-11-19 14:16:03,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:16:03,792 INFO L470 AbstractCegarLoop]: Abstraction has 6755 states and 9572 transitions. [2021-11-19 14:16:03,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2021-11-19 14:16:03,792 INFO L276 IsEmpty]: Start isEmpty. Operand 6755 states and 9572 transitions. [2021-11-19 14:16:03,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-19 14:16:03,795 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:16:03,795 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:16:03,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-19 14:16:04,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:16:04,011 INFO L402 AbstractCegarLoop]: === Iteration 15 === 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 26 more)] === [2021-11-19 14:16:04,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:16:04,012 INFO L85 PathProgramCache]: Analyzing trace with hash 849256505, now seen corresponding path program 1 times [2021-11-19 14:16:04,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:16:04,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [484736915] [2021-11-19 14:16:04,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:16:04,013 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:16:04,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:16:04,014 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:16:04,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-19 14:16:05,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:16:05,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 1325 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:16:05,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:16:05,618 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:16:05,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:16:05,933 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:16:05,933 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:16:05,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [484736915] [2021-11-19 14:16:05,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [484736915] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:16:05,934 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:16:05,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:16:05,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416899608] [2021-11-19 14:16:05,934 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:16:05,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:16:05,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:16:05,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:16:05,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:16:05,935 INFO L87 Difference]: Start difference. First operand 6755 states and 9572 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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) [2021-11-19 14:16:06,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:16:06,367 INFO L93 Difference]: Finished difference Result 6755 states and 9572 transitions. [2021-11-19 14:16:06,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:16:06,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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 110 [2021-11-19 14:16:06,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:16:06,396 INFO L225 Difference]: With dead ends: 6755 [2021-11-19 14:16:06,396 INFO L226 Difference]: Without dead ends: 6753 [2021-11-19 14:16:06,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:16:06,401 INFO L933 BasicCegarLoop]: 3439 mSDtfsCounter, 3349 mSDsluCounter, 3437 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3351 SdHoareTripleChecker+Valid, 6876 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:16:06,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3351 Valid, 6876 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:16:06,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6753 states. [2021-11-19 14:16:07,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6753 to 6753. [2021-11-19 14:16:07,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6753 states, 4398 states have (on average 1.2771714415643474) internal successors, (5617), 4569 states have internal predecessors, (5617), 1924 states have call successors, (1924), 419 states have call predecessors, (1924), 413 states have return successors, (2029), 1868 states have call predecessors, (2029), 1922 states have call successors, (2029) [2021-11-19 14:16:07,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6753 states to 6753 states and 9570 transitions. [2021-11-19 14:16:07,172 INFO L78 Accepts]: Start accepts. Automaton has 6753 states and 9570 transitions. Word has length 110 [2021-11-19 14:16:07,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:16:07,172 INFO L470 AbstractCegarLoop]: Abstraction has 6753 states and 9570 transitions. [2021-11-19 14:16:07,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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) [2021-11-19 14:16:07,173 INFO L276 IsEmpty]: Start isEmpty. Operand 6753 states and 9570 transitions. [2021-11-19 14:16:07,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-19 14:16:07,176 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:16:07,176 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:16:07,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-19 14:16:07,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:16:07,391 INFO L402 AbstractCegarLoop]: === Iteration 16 === 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 26 more)] === [2021-11-19 14:16:07,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:16:07,392 INFO L85 PathProgramCache]: Analyzing trace with hash -152064718, now seen corresponding path program 1 times [2021-11-19 14:16:07,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:16:07,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1222494867] [2021-11-19 14:16:07,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:16:07,394 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:16:07,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:16:07,395 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:16:07,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-19 14:16:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:16:08,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 1334 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:16:08,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:16:09,135 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:16:09,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:16:09,489 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:16:09,489 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:16:09,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1222494867] [2021-11-19 14:16:09,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1222494867] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:16:09,490 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:16:09,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:16:09,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50236468] [2021-11-19 14:16:09,490 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:16:09,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:16:09,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:16:09,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:16:09,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:16:09,492 INFO L87 Difference]: Start difference. First operand 6753 states and 9570 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 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) [2021-11-19 14:16:10,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:16:10,020 INFO L93 Difference]: Finished difference Result 6753 states and 9570 transitions. [2021-11-19 14:16:10,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:16:10,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 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 116 [2021-11-19 14:16:10,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:16:10,054 INFO L225 Difference]: With dead ends: 6753 [2021-11-19 14:16:10,055 INFO L226 Difference]: Without dead ends: 6751 [2021-11-19 14:16:10,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:16:10,060 INFO L933 BasicCegarLoop]: 3437 mSDtfsCounter, 3338 mSDsluCounter, 6870 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3340 SdHoareTripleChecker+Valid, 10307 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:16:10,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3340 Valid, 10307 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:16:10,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6751 states. [2021-11-19 14:16:10,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6751 to 6751. [2021-11-19 14:16:10,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6751 states, 4397 states have (on average 1.277007050261542) internal successors, (5615), 4567 states have internal predecessors, (5615), 1924 states have call successors, (1924), 419 states have call predecessors, (1924), 413 states have return successors, (2029), 1868 states have call predecessors, (2029), 1922 states have call successors, (2029) [2021-11-19 14:16:10,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6751 states to 6751 states and 9568 transitions. [2021-11-19 14:16:10,760 INFO L78 Accepts]: Start accepts. Automaton has 6751 states and 9568 transitions. Word has length 116 [2021-11-19 14:16:10,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:16:10,761 INFO L470 AbstractCegarLoop]: Abstraction has 6751 states and 9568 transitions. [2021-11-19 14:16:10,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 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) [2021-11-19 14:16:10,761 INFO L276 IsEmpty]: Start isEmpty. Operand 6751 states and 9568 transitions. [2021-11-19 14:16:10,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-19 14:16:10,764 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:16:10,765 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 5, 5, 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] [2021-11-19 14:16:10,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-19 14:16:10,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:16:10,979 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:16:10,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:16:10,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1082778163, now seen corresponding path program 1 times [2021-11-19 14:16:10,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:16:10,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1617435539] [2021-11-19 14:16:10,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:16:10,982 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:16:10,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:16:10,982 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:16:10,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-19 14:16:12,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:16:12,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 1459 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 14:16:12,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:16:12,803 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-11-19 14:16:12,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:16:13,210 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-11-19 14:16:13,210 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:16:13,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1617435539] [2021-11-19 14:16:13,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1617435539] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:16:13,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:16:13,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 10 [2021-11-19 14:16:13,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259636104] [2021-11-19 14:16:13,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:16:13,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 14:16:13,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:16:13,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 14:16:13,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:16:13,212 INFO L87 Difference]: Start difference. First operand 6751 states and 9568 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 14:16:14,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:16:14,656 INFO L93 Difference]: Finished difference Result 14108 states and 20100 transitions. [2021-11-19 14:16:14,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 14:16:14,657 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 135 [2021-11-19 14:16:14,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:16:14,686 INFO L225 Difference]: With dead ends: 14108 [2021-11-19 14:16:14,687 INFO L226 Difference]: Without dead ends: 7547 [2021-11-19 14:16:14,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2021-11-19 14:16:14,721 INFO L933 BasicCegarLoop]: 3852 mSDtfsCounter, 386 mSDsluCounter, 26432 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 30284 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:16:14,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [538 Valid, 30284 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 14:16:14,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7547 states. [2021-11-19 14:16:15,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7547 to 6755. [2021-11-19 14:16:15,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6755 states, 4401 states have (on average 1.2767552828902522) internal successors, (5619), 4571 states have internal predecessors, (5619), 1924 states have call successors, (1924), 419 states have call predecessors, (1924), 413 states have return successors, (2029), 1868 states have call predecessors, (2029), 1922 states have call successors, (2029) [2021-11-19 14:16:15,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6755 states to 6755 states and 9572 transitions. [2021-11-19 14:16:15,397 INFO L78 Accepts]: Start accepts. Automaton has 6755 states and 9572 transitions. Word has length 135 [2021-11-19 14:16:15,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:16:15,398 INFO L470 AbstractCegarLoop]: Abstraction has 6755 states and 9572 transitions. [2021-11-19 14:16:15,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 14:16:15,399 INFO L276 IsEmpty]: Start isEmpty. Operand 6755 states and 9572 transitions. [2021-11-19 14:16:15,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-19 14:16:15,401 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:16:15,401 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:16:15,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-19 14:16:15,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:16:15,611 INFO L402 AbstractCegarLoop]: === Iteration 18 === 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 26 more)] === [2021-11-19 14:16:15,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:16:15,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1878990310, now seen corresponding path program 1 times [2021-11-19 14:16:15,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:16:15,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [607784107] [2021-11-19 14:16:15,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:16:15,613 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:16:15,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:16:15,614 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:16:15,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-19 14:16:16,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:16:16,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 1343 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:16:16,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:16:17,317 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:16:17,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:16:17,635 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:16:17,636 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:16:17,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [607784107] [2021-11-19 14:16:17,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [607784107] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:16:17,636 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:16:17,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:16:17,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194862746] [2021-11-19 14:16:17,636 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:16:17,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:16:17,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:16:17,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:16:17,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:16:17,638 INFO L87 Difference]: Start difference. First operand 6755 states and 9572 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 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) [2021-11-19 14:16:18,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:16:18,073 INFO L93 Difference]: Finished difference Result 6755 states and 9572 transitions. [2021-11-19 14:16:18,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:16:18,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 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 122 [2021-11-19 14:16:18,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:16:18,107 INFO L225 Difference]: With dead ends: 6755 [2021-11-19 14:16:18,107 INFO L226 Difference]: Without dead ends: 6753 [2021-11-19 14:16:18,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:16:18,115 INFO L933 BasicCegarLoop]: 3435 mSDtfsCounter, 3333 mSDsluCounter, 3433 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3335 SdHoareTripleChecker+Valid, 6868 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:16:18,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3335 Valid, 6868 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:16:18,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6753 states. [2021-11-19 14:16:18,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6753 to 6753. [2021-11-19 14:16:18,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6753 states, 4400 states have (on average 1.276590909090909) internal successors, (5617), 4569 states have internal predecessors, (5617), 1924 states have call successors, (1924), 419 states have call predecessors, (1924), 413 states have return successors, (2029), 1868 states have call predecessors, (2029), 1922 states have call successors, (2029) [2021-11-19 14:16:18,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6753 states to 6753 states and 9570 transitions. [2021-11-19 14:16:18,732 INFO L78 Accepts]: Start accepts. Automaton has 6753 states and 9570 transitions. Word has length 122 [2021-11-19 14:16:18,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:16:18,733 INFO L470 AbstractCegarLoop]: Abstraction has 6753 states and 9570 transitions. [2021-11-19 14:16:18,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 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) [2021-11-19 14:16:18,733 INFO L276 IsEmpty]: Start isEmpty. Operand 6753 states and 9570 transitions. [2021-11-19 14:16:18,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-19 14:16:18,735 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:16:18,736 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:16:18,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-19 14:16:18,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:16:18,938 INFO L402 AbstractCegarLoop]: === Iteration 19 === 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 26 more)] === [2021-11-19 14:16:18,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:16:18,939 INFO L85 PathProgramCache]: Analyzing trace with hash 374169104, now seen corresponding path program 1 times [2021-11-19 14:16:18,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:16:18,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [429125368] [2021-11-19 14:16:18,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:16:18,941 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:16:18,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:16:18,942 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:16:18,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-19 14:16:20,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:16:20,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:16:20,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:16:20,729 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:16:20,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:16:21,061 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:16:21,062 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:16:21,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [429125368] [2021-11-19 14:16:21,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [429125368] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:16:21,062 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:16:21,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:16:21,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979014285] [2021-11-19 14:16:21,063 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:16:21,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:16:21,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:16:21,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:16:21,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:16:21,065 INFO L87 Difference]: Start difference. First operand 6753 states and 9570 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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) [2021-11-19 14:16:21,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:16:21,733 INFO L93 Difference]: Finished difference Result 6753 states and 9570 transitions. [2021-11-19 14:16:21,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:16:21,733 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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 128 [2021-11-19 14:16:21,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:16:21,767 INFO L225 Difference]: With dead ends: 6753 [2021-11-19 14:16:21,768 INFO L226 Difference]: Without dead ends: 6751 [2021-11-19 14:16:21,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:16:21,774 INFO L933 BasicCegarLoop]: 3433 mSDtfsCounter, 3325 mSDsluCounter, 3431 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3327 SdHoareTripleChecker+Valid, 6864 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:16:21,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3327 Valid, 6864 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:16:21,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6751 states. [2021-11-19 14:16:22,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6751 to 6751. [2021-11-19 14:16:22,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6751 states, 4399 states have (on average 1.276426460559218) internal successors, (5615), 4567 states have internal predecessors, (5615), 1924 states have call successors, (1924), 419 states have call predecessors, (1924), 413 states have return successors, (2029), 1868 states have call predecessors, (2029), 1922 states have call successors, (2029) [2021-11-19 14:16:22,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6751 states to 6751 states and 9568 transitions. [2021-11-19 14:16:22,386 INFO L78 Accepts]: Start accepts. Automaton has 6751 states and 9568 transitions. Word has length 128 [2021-11-19 14:16:22,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:16:22,386 INFO L470 AbstractCegarLoop]: Abstraction has 6751 states and 9568 transitions. [2021-11-19 14:16:22,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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) [2021-11-19 14:16:22,386 INFO L276 IsEmpty]: Start isEmpty. Operand 6751 states and 9568 transitions. [2021-11-19 14:16:22,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-19 14:16:22,388 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:16:22,388 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:16:22,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-19 14:16:22,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:16:22,589 INFO L402 AbstractCegarLoop]: === Iteration 20 === 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 26 more)] === [2021-11-19 14:16:22,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:16:22,590 INFO L85 PathProgramCache]: Analyzing trace with hash -640298692, now seen corresponding path program 1 times [2021-11-19 14:16:22,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:16:22,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [420836313] [2021-11-19 14:16:22,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:16:22,592 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:16:22,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:16:22,593 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:16:22,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-19 14:16:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:16:23,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 1361 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:16:23,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:16:24,307 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:16:24,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:16:24,673 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:16:24,673 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:16:24,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [420836313] [2021-11-19 14:16:24,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [420836313] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:16:24,673 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:16:24,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:16:24,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143645565] [2021-11-19 14:16:24,674 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:16:24,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:16:24,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:16:24,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:16:24,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:16:24,676 INFO L87 Difference]: Start difference. First operand 6751 states and 9568 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 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) [2021-11-19 14:16:25,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:16:25,199 INFO L93 Difference]: Finished difference Result 6751 states and 9568 transitions. [2021-11-19 14:16:25,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:16:25,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 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 134 [2021-11-19 14:16:25,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:16:25,224 INFO L225 Difference]: With dead ends: 6751 [2021-11-19 14:16:25,224 INFO L226 Difference]: Without dead ends: 6749 [2021-11-19 14:16:25,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:16:25,229 INFO L933 BasicCegarLoop]: 3431 mSDtfsCounter, 3314 mSDsluCounter, 6858 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3316 SdHoareTripleChecker+Valid, 10289 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:16:25,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3316 Valid, 10289 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:16:25,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6749 states. [2021-11-19 14:16:25,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6749 to 6749. [2021-11-19 14:16:25,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6749 states, 4398 states have (on average 1.276261937244202) internal successors, (5613), 4565 states have internal predecessors, (5613), 1924 states have call successors, (1924), 419 states have call predecessors, (1924), 413 states have return successors, (2029), 1868 states have call predecessors, (2029), 1922 states have call successors, (2029) [2021-11-19 14:16:25,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6749 states to 6749 states and 9566 transitions. [2021-11-19 14:16:25,869 INFO L78 Accepts]: Start accepts. Automaton has 6749 states and 9566 transitions. Word has length 134 [2021-11-19 14:16:25,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:16:25,869 INFO L470 AbstractCegarLoop]: Abstraction has 6749 states and 9566 transitions. [2021-11-19 14:16:25,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 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) [2021-11-19 14:16:25,869 INFO L276 IsEmpty]: Start isEmpty. Operand 6749 states and 9566 transitions. [2021-11-19 14:16:25,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-19 14:16:25,872 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:16:25,872 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 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] [2021-11-19 14:16:25,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-19 14:16:26,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:16:26,075 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_usb_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:16:26,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:16:26,076 INFO L85 PathProgramCache]: Analyzing trace with hash -799754559, now seen corresponding path program 1 times [2021-11-19 14:16:26,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:16:26,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2104117505] [2021-11-19 14:16:26,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:16:26,078 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:16:26,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:16:26,078 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:16:26,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-19 14:16:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:16:27,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 1569 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:16:27,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:16:28,061 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-19 14:16:28,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:16:28,913 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2021-11-19 14:16:28,913 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:16:28,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2104117505] [2021-11-19 14:16:28,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2104117505] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:16:28,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:16:28,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2021-11-19 14:16:28,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359991238] [2021-11-19 14:16:28,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:16:28,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:16:28,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:16:28,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:16:28,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:16:28,916 INFO L87 Difference]: Start difference. First operand 6749 states and 9566 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-19 14:16:30,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:16:30,327 INFO L93 Difference]: Finished difference Result 13481 states and 19312 transitions. [2021-11-19 14:16:30,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:16:30,328 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 163 [2021-11-19 14:16:30,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:16:30,355 INFO L225 Difference]: With dead ends: 13481 [2021-11-19 14:16:30,355 INFO L226 Difference]: Without dead ends: 6757 [2021-11-19 14:16:30,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:16:30,383 INFO L933 BasicCegarLoop]: 3394 mSDtfsCounter, 3 mSDsluCounter, 13533 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 16927 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:16:30,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 16927 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 14:16:30,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6757 states. [2021-11-19 14:16:31,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6757 to 6749. [2021-11-19 14:16:31,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6749 states, 4398 states have (on average 1.2753524329240564) internal successors, (5609), 4565 states have internal predecessors, (5609), 1924 states have call successors, (1924), 419 states have call predecessors, (1924), 413 states have return successors, (2029), 1868 states have call predecessors, (2029), 1922 states have call successors, (2029) [2021-11-19 14:16:31,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6749 states to 6749 states and 9562 transitions. [2021-11-19 14:16:31,067 INFO L78 Accepts]: Start accepts. Automaton has 6749 states and 9562 transitions. Word has length 163 [2021-11-19 14:16:31,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:16:31,068 INFO L470 AbstractCegarLoop]: Abstraction has 6749 states and 9562 transitions. [2021-11-19 14:16:31,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-19 14:16:31,068 INFO L276 IsEmpty]: Start isEmpty. Operand 6749 states and 9562 transitions. [2021-11-19 14:16:31,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-19 14:16:31,071 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:16:31,072 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 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] [2021-11-19 14:16:31,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (26)] Ended with exit code 0 [2021-11-19 14:16:31,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:16:31,287 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_usb_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:16:31,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:16:31,288 INFO L85 PathProgramCache]: Analyzing trace with hash 93731779, now seen corresponding path program 1 times [2021-11-19 14:16:31,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:16:31,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960798311] [2021-11-19 14:16:31,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:16:31,290 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:16:31,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:16:31,291 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:16:31,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-19 14:16:32,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:16:32,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 1569 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-19 14:16:32,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:16:34,574 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2021-11-19 14:16:34,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:16:40,404 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2021-11-19 14:16:40,404 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:16:40,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960798311] [2021-11-19 14:16:40,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1960798311] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:16:40,405 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:16:40,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 14] imperfect sequences [] total 24 [2021-11-19 14:16:40,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383548285] [2021-11-19 14:16:40,406 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:16:40,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-19 14:16:40,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:16:40,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-19 14:16:40,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2021-11-19 14:16:40,408 INFO L87 Difference]: Start difference. First operand 6749 states and 9562 transitions. Second operand has 24 states, 20 states have (on average 4.3) internal successors, (86), 17 states have internal predecessors, (86), 6 states have call successors, (29), 2 states have call predecessors, (29), 10 states have return successors, (30), 9 states have call predecessors, (30), 6 states have call successors, (30) [2021-11-19 14:16:42,867 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:16:43,925 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:16:51,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:16:51,324 INFO L93 Difference]: Finished difference Result 13929 states and 19981 transitions. [2021-11-19 14:16:51,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-19 14:16:51,326 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 20 states have (on average 4.3) internal successors, (86), 17 states have internal predecessors, (86), 6 states have call successors, (29), 2 states have call predecessors, (29), 10 states have return successors, (30), 9 states have call predecessors, (30), 6 states have call successors, (30) Word has length 163 [2021-11-19 14:16:51,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:16:51,364 INFO L225 Difference]: With dead ends: 13929 [2021-11-19 14:16:51,364 INFO L226 Difference]: Without dead ends: 7205 [2021-11-19 14:16:51,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 301 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2021-11-19 14:16:51,389 INFO L933 BasicCegarLoop]: 3413 mSDtfsCounter, 317 mSDsluCounter, 54331 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 57744 SdHoareTripleChecker+Invalid, 1060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:16:51,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 57744 Invalid, 1060 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [72 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2021-11-19 14:16:51,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7205 states. [2021-11-19 14:16:52,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7205 to 6779. [2021-11-19 14:16:52,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6779 states, 4417 states have (on average 1.2741679873217115) internal successors, (5628), 4587 states have internal predecessors, (5628), 1928 states have call successors, (1928), 419 states have call predecessors, (1928), 420 states have return successors, (2044), 1876 states have call predecessors, (2044), 1926 states have call successors, (2044) [2021-11-19 14:16:52,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6779 states to 6779 states and 9600 transitions. [2021-11-19 14:16:52,100 INFO L78 Accepts]: Start accepts. Automaton has 6779 states and 9600 transitions. Word has length 163 [2021-11-19 14:16:52,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:16:52,101 INFO L470 AbstractCegarLoop]: Abstraction has 6779 states and 9600 transitions. [2021-11-19 14:16:52,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 20 states have (on average 4.3) internal successors, (86), 17 states have internal predecessors, (86), 6 states have call successors, (29), 2 states have call predecessors, (29), 10 states have return successors, (30), 9 states have call predecessors, (30), 6 states have call successors, (30) [2021-11-19 14:16:52,101 INFO L276 IsEmpty]: Start isEmpty. Operand 6779 states and 9600 transitions. [2021-11-19 14:16:52,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-19 14:16:52,103 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:16:52,103 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:16:52,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-19 14:16:52,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:16:52,304 INFO L402 AbstractCegarLoop]: === Iteration 23 === 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 26 more)] === [2021-11-19 14:16:52,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:16:52,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1799558168, now seen corresponding path program 1 times [2021-11-19 14:16:52,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:16:52,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [694698618] [2021-11-19 14:16:52,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:16:52,306 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:16:52,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:16:52,307 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:16:52,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-19 14:16:53,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:16:53,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 1370 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:16:53,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:16:54,351 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:16:54,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:16:54,734 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:16:54,734 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:16:54,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [694698618] [2021-11-19 14:16:54,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [694698618] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:16:54,735 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:16:54,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:16:54,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219980870] [2021-11-19 14:16:54,735 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:16:54,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:16:54,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:16:54,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:16:54,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:16:54,736 INFO L87 Difference]: Start difference. First operand 6779 states and 9600 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-19 14:16:55,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:16:55,260 INFO L93 Difference]: Finished difference Result 6779 states and 9600 transitions. [2021-11-19 14:16:55,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:16:55,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 140 [2021-11-19 14:16:55,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:16:55,291 INFO L225 Difference]: With dead ends: 6779 [2021-11-19 14:16:55,291 INFO L226 Difference]: Without dead ends: 6777 [2021-11-19 14:16:55,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:16:55,296 INFO L933 BasicCegarLoop]: 3428 mSDtfsCounter, 3305 mSDsluCounter, 6852 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3307 SdHoareTripleChecker+Valid, 10280 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:16:55,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3307 Valid, 10280 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:16:55,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6777 states. [2021-11-19 14:16:56,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6777 to 6777. [2021-11-19 14:16:56,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6777 states, 4416 states have (on average 1.2740036231884058) internal successors, (5626), 4585 states have internal predecessors, (5626), 1928 states have call successors, (1928), 419 states have call predecessors, (1928), 420 states have return successors, (2044), 1876 states have call predecessors, (2044), 1926 states have call successors, (2044) [2021-11-19 14:16:56,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6777 states to 6777 states and 9598 transitions. [2021-11-19 14:16:56,143 INFO L78 Accepts]: Start accepts. Automaton has 6777 states and 9598 transitions. Word has length 140 [2021-11-19 14:16:56,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:16:56,144 INFO L470 AbstractCegarLoop]: Abstraction has 6777 states and 9598 transitions. [2021-11-19 14:16:56,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-19 14:16:56,144 INFO L276 IsEmpty]: Start isEmpty. Operand 6777 states and 9598 transitions. [2021-11-19 14:16:56,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-19 14:16:56,148 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:16:56,148 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 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] [2021-11-19 14:16:56,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-11-19 14:16:56,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:16:56,362 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_usb_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:16:56,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:16:56,363 INFO L85 PathProgramCache]: Analyzing trace with hash -865815540, now seen corresponding path program 1 times [2021-11-19 14:16:56,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:16:56,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1463500311] [2021-11-19 14:16:56,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:16:56,365 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:16:56,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:16:56,367 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:16:56,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-19 14:16:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:16:58,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 1572 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:16:58,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:16:58,487 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-11-19 14:16:58,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:16:58,907 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-11-19 14:16:58,908 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:16:58,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1463500311] [2021-11-19 14:16:58,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1463500311] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:16:58,908 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:16:58,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:16:58,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194879939] [2021-11-19 14:16:58,909 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:16:58,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:16:58,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:16:58,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:16:58,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:16:58,911 INFO L87 Difference]: Start difference. First operand 6777 states and 9598 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-19 14:16:59,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:16:59,778 INFO L93 Difference]: Finished difference Result 13523 states and 19161 transitions. [2021-11-19 14:16:59,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:16:59,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 164 [2021-11-19 14:16:59,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:16:59,810 INFO L225 Difference]: With dead ends: 13523 [2021-11-19 14:16:59,811 INFO L226 Difference]: Without dead ends: 6771 [2021-11-19 14:16:59,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:16:59,836 INFO L933 BasicCegarLoop]: 3424 mSDtfsCounter, 3396 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3396 SdHoareTripleChecker+Valid, 3424 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:16:59,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3396 Valid, 3424 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:16:59,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6771 states. [2021-11-19 14:17:00,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6771 to 6771. [2021-11-19 14:17:00,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6771 states, 4411 states have (on average 1.2734073906143732) internal successors, (5617), 4579 states have internal predecessors, (5617), 1928 states have call successors, (1928), 419 states have call predecessors, (1928), 420 states have return successors, (2044), 1876 states have call predecessors, (2044), 1926 states have call successors, (2044) [2021-11-19 14:17:00,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6771 states to 6771 states and 9589 transitions. [2021-11-19 14:17:00,481 INFO L78 Accepts]: Start accepts. Automaton has 6771 states and 9589 transitions. Word has length 164 [2021-11-19 14:17:00,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:00,482 INFO L470 AbstractCegarLoop]: Abstraction has 6771 states and 9589 transitions. [2021-11-19 14:17:00,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-19 14:17:00,482 INFO L276 IsEmpty]: Start isEmpty. Operand 6771 states and 9589 transitions. [2021-11-19 14:17:00,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-11-19 14:17:00,485 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:00,485 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:17:00,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:00,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:00,694 INFO L402 AbstractCegarLoop]: === Iteration 25 === 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 26 more)] === [2021-11-19 14:17:00,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:00,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1869573616, now seen corresponding path program 1 times [2021-11-19 14:17:00,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:00,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1987194200] [2021-11-19 14:17:00,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:00,697 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:00,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:00,698 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:00,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-19 14:17:01,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:02,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 1379 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:17:02,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:02,627 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:17:02,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:03,311 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:17:03,311 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:03,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1987194200] [2021-11-19 14:17:03,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1987194200] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:17:03,312 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:17:03,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2021-11-19 14:17:03,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000830934] [2021-11-19 14:17:03,312 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:03,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:17:03,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:03,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:17:03,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:17:03,315 INFO L87 Difference]: Start difference. First operand 6771 states and 9589 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 6 states have internal predecessors, (179), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-19 14:17:06,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:06,540 INFO L93 Difference]: Finished difference Result 6771 states and 9589 transitions. [2021-11-19 14:17:06,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:17:06,541 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 6 states have internal predecessors, (179), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 146 [2021-11-19 14:17:06,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:06,563 INFO L225 Difference]: With dead ends: 6771 [2021-11-19 14:17:06,563 INFO L226 Difference]: Without dead ends: 6769 [2021-11-19 14:17:06,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:17:06,568 INFO L933 BasicCegarLoop]: 3421 mSDtfsCounter, 5293 mSDsluCounter, 3419 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5295 SdHoareTripleChecker+Valid, 6840 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1382 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:06,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5295 Valid, 6840 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1382 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-19 14:17:06,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6769 states. [2021-11-19 14:17:07,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6769 to 6769. [2021-11-19 14:17:07,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6769 states, 4410 states have (on average 1.2732426303854876) internal successors, (5615), 4577 states have internal predecessors, (5615), 1928 states have call successors, (1928), 419 states have call predecessors, (1928), 420 states have return successors, (2044), 1876 states have call predecessors, (2044), 1926 states have call successors, (2044) [2021-11-19 14:17:07,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6769 states to 6769 states and 9587 transitions. [2021-11-19 14:17:07,206 INFO L78 Accepts]: Start accepts. Automaton has 6769 states and 9587 transitions. Word has length 146 [2021-11-19 14:17:07,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:07,206 INFO L470 AbstractCegarLoop]: Abstraction has 6769 states and 9587 transitions. [2021-11-19 14:17:07,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 6 states have internal predecessors, (179), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-19 14:17:07,207 INFO L276 IsEmpty]: Start isEmpty. Operand 6769 states and 9587 transitions. [2021-11-19 14:17:07,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-19 14:17:07,210 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:07,210 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:17:07,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:07,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:07,422 INFO L402 AbstractCegarLoop]: === Iteration 26 === 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 26 more)] === [2021-11-19 14:17:07,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:07,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1987453117, now seen corresponding path program 1 times [2021-11-19 14:17:07,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:07,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [989239241] [2021-11-19 14:17:07,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:07,424 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:07,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:07,429 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:07,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-19 14:17:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:08,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 1388 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:17:08,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:09,478 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:17:09,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:09,890 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:17:09,891 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:09,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [989239241] [2021-11-19 14:17:09,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [989239241] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:17:09,891 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:17:09,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:17:09,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294298346] [2021-11-19 14:17:09,891 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:09,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:17:09,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:09,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:17:09,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:17:09,893 INFO L87 Difference]: Start difference. First operand 6769 states and 9587 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 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) [2021-11-19 14:17:10,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:10,489 INFO L93 Difference]: Finished difference Result 6769 states and 9587 transitions. [2021-11-19 14:17:10,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:17:10,490 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 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 152 [2021-11-19 14:17:10,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:10,514 INFO L225 Difference]: With dead ends: 6769 [2021-11-19 14:17:10,514 INFO L226 Difference]: Without dead ends: 6767 [2021-11-19 14:17:10,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 298 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:17:10,519 INFO L933 BasicCegarLoop]: 3419 mSDtfsCounter, 3284 mSDsluCounter, 6834 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3286 SdHoareTripleChecker+Valid, 10253 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:10,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3286 Valid, 10253 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:17:10,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6767 states. [2021-11-19 14:17:11,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6767 to 6767. [2021-11-19 14:17:11,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6767 states, 4409 states have (on average 1.2730777954184622) internal successors, (5613), 4575 states have internal predecessors, (5613), 1928 states have call successors, (1928), 419 states have call predecessors, (1928), 420 states have return successors, (2044), 1876 states have call predecessors, (2044), 1926 states have call successors, (2044) [2021-11-19 14:17:11,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6767 states to 6767 states and 9585 transitions. [2021-11-19 14:17:11,248 INFO L78 Accepts]: Start accepts. Automaton has 6767 states and 9585 transitions. Word has length 152 [2021-11-19 14:17:11,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:11,249 INFO L470 AbstractCegarLoop]: Abstraction has 6767 states and 9585 transitions. [2021-11-19 14:17:11,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 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) [2021-11-19 14:17:11,249 INFO L276 IsEmpty]: Start isEmpty. Operand 6767 states and 9585 transitions. [2021-11-19 14:17:11,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-19 14:17:11,252 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:11,252 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:17:11,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:11,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:11,475 INFO L402 AbstractCegarLoop]: === Iteration 27 === 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 26 more)] === [2021-11-19 14:17:11,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:11,476 INFO L85 PathProgramCache]: Analyzing trace with hash 2040591994, now seen corresponding path program 1 times [2021-11-19 14:17:11,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:11,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922621203] [2021-11-19 14:17:11,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:11,479 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:11,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:11,480 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:11,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-11-19 14:17:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:12,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 1397 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:17:12,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:13,436 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:17:13,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:13,858 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:17:13,858 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:13,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [922621203] [2021-11-19 14:17:13,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [922621203] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:17:13,859 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:17:13,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:17:13,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301809603] [2021-11-19 14:17:13,859 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:13,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:17:13,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:13,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:17:13,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:17:13,861 INFO L87 Difference]: Start difference. First operand 6767 states and 9585 transitions. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 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) [2021-11-19 14:17:14,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:14,465 INFO L93 Difference]: Finished difference Result 6767 states and 9585 transitions. [2021-11-19 14:17:14,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:17:14,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 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 158 [2021-11-19 14:17:14,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:14,490 INFO L225 Difference]: With dead ends: 6767 [2021-11-19 14:17:14,490 INFO L226 Difference]: Without dead ends: 6765 [2021-11-19 14:17:14,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:17:14,496 INFO L933 BasicCegarLoop]: 3417 mSDtfsCounter, 3279 mSDsluCounter, 3415 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3281 SdHoareTripleChecker+Valid, 6832 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:14,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3281 Valid, 6832 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:17:14,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6765 states. [2021-11-19 14:17:15,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6765 to 6765. [2021-11-19 14:17:15,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6765 states, 4408 states have (on average 1.2729128856624319) internal successors, (5611), 4573 states have internal predecessors, (5611), 1928 states have call successors, (1928), 419 states have call predecessors, (1928), 420 states have return successors, (2044), 1876 states have call predecessors, (2044), 1926 states have call successors, (2044) [2021-11-19 14:17:15,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6765 states to 6765 states and 9583 transitions. [2021-11-19 14:17:15,243 INFO L78 Accepts]: Start accepts. Automaton has 6765 states and 9583 transitions. Word has length 158 [2021-11-19 14:17:15,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:15,244 INFO L470 AbstractCegarLoop]: Abstraction has 6765 states and 9583 transitions. [2021-11-19 14:17:15,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 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) [2021-11-19 14:17:15,244 INFO L276 IsEmpty]: Start isEmpty. Operand 6765 states and 9583 transitions. [2021-11-19 14:17:15,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-19 14:17:15,248 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:15,249 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 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] [2021-11-19 14:17:15,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:15,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:15,475 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:17:15,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:15,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1706251327, now seen corresponding path program 1 times [2021-11-19 14:17:15,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:15,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963607577] [2021-11-19 14:17:15,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:15,478 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:15,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:15,479 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:15,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-11-19 14:17:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:17,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 1656 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:17:17,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:17,746 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-11-19 14:17:17,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:18,299 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-11-19 14:17:18,299 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:18,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963607577] [2021-11-19 14:17:18,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [963607577] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:17:18,302 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:17:18,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-19 14:17:18,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117771734] [2021-11-19 14:17:18,303 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:18,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:17:18,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:18,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:17:18,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:17:18,305 INFO L87 Difference]: Start difference. First operand 6765 states and 9583 transitions. Second operand has 8 states, 6 states have (on average 14.166666666666666) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-19 14:17:19,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:19,681 INFO L93 Difference]: Finished difference Result 13575 states and 19454 transitions. [2021-11-19 14:17:19,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:17:19,682 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 14.166666666666666) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) Word has length 181 [2021-11-19 14:17:19,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:19,710 INFO L225 Difference]: With dead ends: 13575 [2021-11-19 14:17:19,710 INFO L226 Difference]: Without dead ends: 6835 [2021-11-19 14:17:19,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:17:19,729 INFO L933 BasicCegarLoop]: 3398 mSDtfsCounter, 21 mSDsluCounter, 16894 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 20292 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 76 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:19,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 20292 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 231 Invalid, 0 Unknown, 76 Unchecked, 0.6s Time] [2021-11-19 14:17:19,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6835 states. [2021-11-19 14:17:20,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6835 to 6765. [2021-11-19 14:17:20,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6765 states, 4408 states have (on average 1.272005444646098) internal successors, (5607), 4573 states have internal predecessors, (5607), 1928 states have call successors, (1928), 419 states have call predecessors, (1928), 420 states have return successors, (2044), 1876 states have call predecessors, (2044), 1926 states have call successors, (2044) [2021-11-19 14:17:20,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6765 states to 6765 states and 9579 transitions. [2021-11-19 14:17:20,399 INFO L78 Accepts]: Start accepts. Automaton has 6765 states and 9579 transitions. Word has length 181 [2021-11-19 14:17:20,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:20,400 INFO L470 AbstractCegarLoop]: Abstraction has 6765 states and 9579 transitions. [2021-11-19 14:17:20,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 14.166666666666666) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-19 14:17:20,400 INFO L276 IsEmpty]: Start isEmpty. Operand 6765 states and 9579 transitions. [2021-11-19 14:17:20,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-19 14:17:20,404 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:20,404 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 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] [2021-11-19 14:17:20,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:20,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:20,611 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:17:20,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:20,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1026192957, now seen corresponding path program 1 times [2021-11-19 14:17:20,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:20,614 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [658984253] [2021-11-19 14:17:20,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:20,614 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:20,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:20,615 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:20,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-11-19 14:17:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:22,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 1656 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:17:22,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:22,946 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2021-11-19 14:17:22,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:23,392 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2021-11-19 14:17:23,392 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:23,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [658984253] [2021-11-19 14:17:23,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [658984253] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:17:23,393 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:17:23,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 14:17:23,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873849399] [2021-11-19 14:17:23,393 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:23,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:17:23,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:23,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:17:23,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:17:23,395 INFO L87 Difference]: Start difference. First operand 6765 states and 9579 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 4 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-19 14:17:24,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:24,743 INFO L93 Difference]: Finished difference Result 13697 states and 19648 transitions. [2021-11-19 14:17:24,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:17:24,745 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 4 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 181 [2021-11-19 14:17:24,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:24,773 INFO L225 Difference]: With dead ends: 13697 [2021-11-19 14:17:24,773 INFO L226 Difference]: Without dead ends: 6957 [2021-11-19 14:17:24,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:17:24,796 INFO L933 BasicCegarLoop]: 3428 mSDtfsCounter, 61 mSDsluCounter, 6829 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 10257 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:24,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 10257 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 14:17:24,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6957 states. [2021-11-19 14:17:25,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6957 to 6861. [2021-11-19 14:17:25,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6861 states, 4484 states have (on average 1.2718554861730598) internal successors, (5703), 4649 states have internal predecessors, (5703), 1948 states have call successors, (1948), 419 states have call predecessors, (1948), 420 states have return successors, (2066), 1896 states have call predecessors, (2066), 1946 states have call successors, (2066) [2021-11-19 14:17:25,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6861 states to 6861 states and 9717 transitions. [2021-11-19 14:17:25,581 INFO L78 Accepts]: Start accepts. Automaton has 6861 states and 9717 transitions. Word has length 181 [2021-11-19 14:17:25,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:25,582 INFO L470 AbstractCegarLoop]: Abstraction has 6861 states and 9717 transitions. [2021-11-19 14:17:25,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 4 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-19 14:17:25,583 INFO L276 IsEmpty]: Start isEmpty. Operand 6861 states and 9717 transitions. [2021-11-19 14:17:25,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-19 14:17:25,586 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:25,587 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 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] [2021-11-19 14:17:25,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:25,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:25,811 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:17:25,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:25,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1230568248, now seen corresponding path program 1 times [2021-11-19 14:17:25,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:25,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [969034290] [2021-11-19 14:17:25,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:25,815 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:25,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:25,816 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:25,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-11-19 14:17:27,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:27,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 1653 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:17:27,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:28,049 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-11-19 14:17:28,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:28,520 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2021-11-19 14:17:28,520 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:28,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [969034290] [2021-11-19 14:17:28,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [969034290] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:17:28,521 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:17:28,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:17:28,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658799128] [2021-11-19 14:17:28,521 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:28,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:17:28,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:28,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:17:28,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:17:28,522 INFO L87 Difference]: Start difference. First operand 6861 states and 9717 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-19 14:17:29,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:29,451 INFO L93 Difference]: Finished difference Result 13705 states and 19610 transitions. [2021-11-19 14:17:29,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:17:29,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 180 [2021-11-19 14:17:29,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:29,474 INFO L225 Difference]: With dead ends: 13705 [2021-11-19 14:17:29,474 INFO L226 Difference]: Without dead ends: 6869 [2021-11-19 14:17:29,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:17:29,492 INFO L933 BasicCegarLoop]: 3417 mSDtfsCounter, 1 mSDsluCounter, 3411 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6828 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:29,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 6828 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:17:29,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6869 states. [2021-11-19 14:17:30,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6869 to 6865. [2021-11-19 14:17:30,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6865 states, 4488 states have (on average 1.271613190730838) internal successors, (5707), 4653 states have internal predecessors, (5707), 1948 states have call successors, (1948), 419 states have call predecessors, (1948), 420 states have return successors, (2066), 1896 states have call predecessors, (2066), 1946 states have call successors, (2066) [2021-11-19 14:17:30,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6865 states to 6865 states and 9721 transitions. [2021-11-19 14:17:30,185 INFO L78 Accepts]: Start accepts. Automaton has 6865 states and 9721 transitions. Word has length 180 [2021-11-19 14:17:30,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:30,186 INFO L470 AbstractCegarLoop]: Abstraction has 6865 states and 9721 transitions. [2021-11-19 14:17:30,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-19 14:17:30,186 INFO L276 IsEmpty]: Start isEmpty. Operand 6865 states and 9721 transitions. [2021-11-19 14:17:30,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-19 14:17:30,189 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:30,190 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 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] [2021-11-19 14:17:30,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:30,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:30,405 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:17:30,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:30,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1158181690, now seen corresponding path program 1 times [2021-11-19 14:17:30,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:30,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2027322755] [2021-11-19 14:17:30,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:30,408 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:30,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:30,409 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:30,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-11-19 14:17:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:32,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 1655 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:17:32,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:32,764 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-11-19 14:17:32,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:33,352 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-11-19 14:17:33,352 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:33,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2027322755] [2021-11-19 14:17:33,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2027322755] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:17:33,352 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:17:33,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-19 14:17:33,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69397497] [2021-11-19 14:17:33,353 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:33,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:17:33,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:33,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:17:33,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:17:33,354 INFO L87 Difference]: Start difference. First operand 6865 states and 9721 transitions. Second operand has 8 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-19 14:17:34,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:34,930 INFO L93 Difference]: Finished difference Result 13775 states and 19730 transitions. [2021-11-19 14:17:34,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:17:34,931 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) Word has length 180 [2021-11-19 14:17:34,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:34,969 INFO L225 Difference]: With dead ends: 13775 [2021-11-19 14:17:34,969 INFO L226 Difference]: Without dead ends: 6935 [2021-11-19 14:17:35,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:17:35,003 INFO L933 BasicCegarLoop]: 3389 mSDtfsCounter, 21 mSDsluCounter, 13504 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 16893 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 76 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:35,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 16893 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 76 Unchecked, 0.4s Time] [2021-11-19 14:17:35,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6935 states. [2021-11-19 14:17:35,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6935 to 6865. [2021-11-19 14:17:35,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6865 states, 4488 states have (on average 1.2707219251336899) internal successors, (5703), 4653 states have internal predecessors, (5703), 1948 states have call successors, (1948), 419 states have call predecessors, (1948), 420 states have return successors, (2066), 1896 states have call predecessors, (2066), 1946 states have call successors, (2066) [2021-11-19 14:17:35,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6865 states to 6865 states and 9717 transitions. [2021-11-19 14:17:35,799 INFO L78 Accepts]: Start accepts. Automaton has 6865 states and 9717 transitions. Word has length 180 [2021-11-19 14:17:35,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:35,799 INFO L470 AbstractCegarLoop]: Abstraction has 6865 states and 9717 transitions. [2021-11-19 14:17:35,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-19 14:17:35,799 INFO L276 IsEmpty]: Start isEmpty. Operand 6865 states and 9717 transitions. [2021-11-19 14:17:35,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-19 14:17:35,803 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:35,803 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 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] [2021-11-19 14:17:35,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:36,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:36,019 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:17:36,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:36,020 INFO L85 PathProgramCache]: Analyzing trace with hash -478123320, now seen corresponding path program 1 times [2021-11-19 14:17:36,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:36,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1564232089] [2021-11-19 14:17:36,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:36,022 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:36,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:36,023 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:36,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-11-19 14:17:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:37,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 1655 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:17:37,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:38,286 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2021-11-19 14:17:38,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:38,778 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2021-11-19 14:17:38,779 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:38,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1564232089] [2021-11-19 14:17:38,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1564232089] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:17:38,779 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:17:38,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 14:17:38,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556614036] [2021-11-19 14:17:38,779 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:38,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:17:38,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:38,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:17:38,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:17:38,781 INFO L87 Difference]: Start difference. First operand 6865 states and 9717 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 4 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-19 14:17:40,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:40,562 INFO L93 Difference]: Finished difference Result 13905 states and 19936 transitions. [2021-11-19 14:17:40,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:17:40,563 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 4 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 180 [2021-11-19 14:17:40,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:40,593 INFO L225 Difference]: With dead ends: 13905 [2021-11-19 14:17:40,593 INFO L226 Difference]: Without dead ends: 7065 [2021-11-19 14:17:40,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:17:40,618 INFO L933 BasicCegarLoop]: 3431 mSDtfsCounter, 43 mSDsluCounter, 10240 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 13671 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:40,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 13671 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-19 14:17:40,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7065 states. [2021-11-19 14:17:41,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7065 to 6965. [2021-11-19 14:17:41,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6965 states, 4568 states have (on average 1.2703590192644483) internal successors, (5803), 4733 states have internal predecessors, (5803), 1968 states have call successors, (1968), 419 states have call predecessors, (1968), 420 states have return successors, (2088), 1916 states have call predecessors, (2088), 1966 states have call successors, (2088) [2021-11-19 14:17:41,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6965 states to 6965 states and 9859 transitions. [2021-11-19 14:17:41,486 INFO L78 Accepts]: Start accepts. Automaton has 6965 states and 9859 transitions. Word has length 180 [2021-11-19 14:17:41,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:41,487 INFO L470 AbstractCegarLoop]: Abstraction has 6965 states and 9859 transitions. [2021-11-19 14:17:41,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 4 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-19 14:17:41,488 INFO L276 IsEmpty]: Start isEmpty. Operand 6965 states and 9859 transitions. [2021-11-19 14:17:41,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-19 14:17:41,519 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:41,519 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:17:41,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:41,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:41,739 INFO L402 AbstractCegarLoop]: === Iteration 33 === 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 26 more)] === [2021-11-19 14:17:41,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:41,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1309240449, now seen corresponding path program 1 times [2021-11-19 14:17:41,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:41,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1794310754] [2021-11-19 14:17:41,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:41,742 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:41,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:41,743 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:41,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-11-19 14:17:42,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:43,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 1406 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:17:43,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:43,791 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:17:43,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:44,252 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:17:44,253 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:44,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1794310754] [2021-11-19 14:17:44,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1794310754] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:17:44,253 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:17:44,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:17:44,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96564305] [2021-11-19 14:17:44,254 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:44,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:17:44,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:44,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:17:44,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:17:44,255 INFO L87 Difference]: Start difference. First operand 6965 states and 9859 transitions. Second operand has 5 states, 5 states have (on average 36.4) internal successors, (182), 5 states have internal predecessors, (182), 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) [2021-11-19 14:17:44,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:44,908 INFO L93 Difference]: Finished difference Result 6965 states and 9859 transitions. [2021-11-19 14:17:44,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:17:44,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.4) internal successors, (182), 5 states have internal predecessors, (182), 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 164 [2021-11-19 14:17:44,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:44,932 INFO L225 Difference]: With dead ends: 6965 [2021-11-19 14:17:44,932 INFO L226 Difference]: Without dead ends: 6963 [2021-11-19 14:17:44,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:17:44,937 INFO L933 BasicCegarLoop]: 3413 mSDtfsCounter, 3269 mSDsluCounter, 3411 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3271 SdHoareTripleChecker+Valid, 6824 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:44,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3271 Valid, 6824 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:17:44,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6963 states. [2021-11-19 14:17:45,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6963 to 6963. [2021-11-19 14:17:45,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6963 states, 4567 states have (on average 1.2701992555287935) internal successors, (5801), 4731 states have internal predecessors, (5801), 1968 states have call successors, (1968), 419 states have call predecessors, (1968), 420 states have return successors, (2088), 1916 states have call predecessors, (2088), 1966 states have call successors, (2088) [2021-11-19 14:17:45,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6963 states to 6963 states and 9857 transitions. [2021-11-19 14:17:45,759 INFO L78 Accepts]: Start accepts. Automaton has 6963 states and 9857 transitions. Word has length 164 [2021-11-19 14:17:45,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:45,760 INFO L470 AbstractCegarLoop]: Abstraction has 6963 states and 9857 transitions. [2021-11-19 14:17:45,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.4) internal successors, (182), 5 states have internal predecessors, (182), 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) [2021-11-19 14:17:45,760 INFO L276 IsEmpty]: Start isEmpty. Operand 6963 states and 9857 transitions. [2021-11-19 14:17:45,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-19 14:17:45,762 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:45,763 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:17:45,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:45,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:45,963 INFO L402 AbstractCegarLoop]: === Iteration 34 === 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 26 more)] === [2021-11-19 14:17:45,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:45,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1026893545, now seen corresponding path program 1 times [2021-11-19 14:17:45,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:45,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125558889] [2021-11-19 14:17:45,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:45,966 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:45,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:45,966 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:45,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-11-19 14:17:47,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:47,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 1415 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:17:47,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:47,975 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:17:47,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:48,423 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:17:48,423 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:48,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1125558889] [2021-11-19 14:17:48,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1125558889] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:17:48,424 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:17:48,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:17:48,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226718711] [2021-11-19 14:17:48,424 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:48,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:17:48,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:48,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:17:48,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:17:48,426 INFO L87 Difference]: Start difference. First operand 6963 states and 9857 transitions. Second operand has 5 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 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) [2021-11-19 14:17:49,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:49,107 INFO L93 Difference]: Finished difference Result 6963 states and 9857 transitions. [2021-11-19 14:17:49,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:17:49,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 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 170 [2021-11-19 14:17:49,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:49,132 INFO L225 Difference]: With dead ends: 6963 [2021-11-19 14:17:49,132 INFO L226 Difference]: Without dead ends: 6961 [2021-11-19 14:17:49,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:17:49,137 INFO L933 BasicCegarLoop]: 3411 mSDtfsCounter, 3261 mSDsluCounter, 3409 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3263 SdHoareTripleChecker+Valid, 6820 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:49,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3263 Valid, 6820 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:17:49,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6961 states. [2021-11-19 14:17:49,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6961 to 6961. [2021-11-19 14:17:49,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6961 states, 4566 states have (on average 1.2700394218134035) internal successors, (5799), 4729 states have internal predecessors, (5799), 1968 states have call successors, (1968), 419 states have call predecessors, (1968), 420 states have return successors, (2088), 1916 states have call predecessors, (2088), 1966 states have call successors, (2088) [2021-11-19 14:17:49,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6961 states to 6961 states and 9855 transitions. [2021-11-19 14:17:49,982 INFO L78 Accepts]: Start accepts. Automaton has 6961 states and 9855 transitions. Word has length 170 [2021-11-19 14:17:49,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:49,982 INFO L470 AbstractCegarLoop]: Abstraction has 6961 states and 9855 transitions. [2021-11-19 14:17:49,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 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) [2021-11-19 14:17:49,983 INFO L276 IsEmpty]: Start isEmpty. Operand 6961 states and 9855 transitions. [2021-11-19 14:17:49,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-11-19 14:17:49,985 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:49,985 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:17:50,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:50,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:50,186 INFO L402 AbstractCegarLoop]: === Iteration 35 === 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 26 more)] === [2021-11-19 14:17:50,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:50,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1516214394, now seen corresponding path program 1 times [2021-11-19 14:17:50,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:50,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373247783] [2021-11-19 14:17:50,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:50,190 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:50,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:50,191 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:50,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-11-19 14:17:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:51,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 1424 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:17:51,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:52,334 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:17:52,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:52,801 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:17:52,801 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:52,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373247783] [2021-11-19 14:17:52,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [373247783] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:17:52,802 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:17:52,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:17:52,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616755675] [2021-11-19 14:17:52,802 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:52,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:17:52,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:52,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:17:52,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:17:52,803 INFO L87 Difference]: Start difference. First operand 6961 states and 9855 transitions. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 5 states have internal predecessors, (198), 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) [2021-11-19 14:17:53,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:53,691 INFO L93 Difference]: Finished difference Result 6961 states and 9855 transitions. [2021-11-19 14:17:53,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:17:53,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 5 states have internal predecessors, (198), 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 176 [2021-11-19 14:17:53,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:53,718 INFO L225 Difference]: With dead ends: 6961 [2021-11-19 14:17:53,718 INFO L226 Difference]: Without dead ends: 6959 [2021-11-19 14:17:53,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:17:53,722 INFO L933 BasicCegarLoop]: 3409 mSDtfsCounter, 3250 mSDsluCounter, 6814 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3252 SdHoareTripleChecker+Valid, 10223 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:53,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3252 Valid, 10223 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:17:53,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6959 states. [2021-11-19 14:17:54,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6959 to 6959. [2021-11-19 14:17:54,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6959 states, 4565 states have (on average 1.269879518072289) internal successors, (5797), 4727 states have internal predecessors, (5797), 1968 states have call successors, (1968), 419 states have call predecessors, (1968), 420 states have return successors, (2088), 1916 states have call predecessors, (2088), 1966 states have call successors, (2088) [2021-11-19 14:17:54,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6959 states to 6959 states and 9853 transitions. [2021-11-19 14:17:54,631 INFO L78 Accepts]: Start accepts. Automaton has 6959 states and 9853 transitions. Word has length 176 [2021-11-19 14:17:54,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:54,631 INFO L470 AbstractCegarLoop]: Abstraction has 6959 states and 9853 transitions. [2021-11-19 14:17:54,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 5 states have internal predecessors, (198), 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) [2021-11-19 14:17:54,631 INFO L276 IsEmpty]: Start isEmpty. Operand 6959 states and 9853 transitions. [2021-11-19 14:17:54,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-19 14:17:54,634 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:54,634 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:17:54,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:54,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:54,835 INFO L402 AbstractCegarLoop]: === Iteration 36 === 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 26 more)] === [2021-11-19 14:17:54,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:54,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1265553349, now seen corresponding path program 1 times [2021-11-19 14:17:54,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:54,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287143443] [2021-11-19 14:17:54,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:54,838 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:54,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:54,839 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:54,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-11-19 14:17:56,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:17:56,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 1433 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:17:56,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:17:56,896 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:17:56,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:17:57,376 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:17:57,376 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:17:57,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [287143443] [2021-11-19 14:17:57,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [287143443] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:17:57,377 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:17:57,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:17:57,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750283822] [2021-11-19 14:17:57,377 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:17:57,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:17:57,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:17:57,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:17:57,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:17:57,379 INFO L87 Difference]: Start difference. First operand 6959 states and 9853 transitions. Second operand has 5 states, 5 states have (on average 41.2) internal successors, (206), 5 states have internal predecessors, (206), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-19 14:17:58,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:17:58,199 INFO L93 Difference]: Finished difference Result 6959 states and 9853 transitions. [2021-11-19 14:17:58,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:17:58,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.2) internal successors, (206), 5 states have internal predecessors, (206), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 182 [2021-11-19 14:17:58,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:17:58,220 INFO L225 Difference]: With dead ends: 6959 [2021-11-19 14:17:58,220 INFO L226 Difference]: Without dead ends: 6780 [2021-11-19 14:17:58,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:17:58,224 INFO L933 BasicCegarLoop]: 3408 mSDtfsCounter, 3241 mSDsluCounter, 3408 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3241 SdHoareTripleChecker+Valid, 6816 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:17:58,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3241 Valid, 6816 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:17:58,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6780 states. [2021-11-19 14:17:59,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6780 to 6780. [2021-11-19 14:17:59,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6780 states, 4454 states have (on average 1.2752581948810058) internal successors, (5680), 4613 states have internal predecessors, (5680), 1921 states have call successors, (1921), 399 states have call predecessors, (1921), 400 states have return successors, (2041), 1871 states have call predecessors, (2041), 1919 states have call successors, (2041) [2021-11-19 14:17:59,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6780 states to 6780 states and 9642 transitions. [2021-11-19 14:17:59,169 INFO L78 Accepts]: Start accepts. Automaton has 6780 states and 9642 transitions. Word has length 182 [2021-11-19 14:17:59,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:17:59,169 INFO L470 AbstractCegarLoop]: Abstraction has 6780 states and 9642 transitions. [2021-11-19 14:17:59,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.2) internal successors, (206), 5 states have internal predecessors, (206), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-19 14:17:59,169 INFO L276 IsEmpty]: Start isEmpty. Operand 6780 states and 9642 transitions. [2021-11-19 14:17:59,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-11-19 14:17:59,172 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:17:59,172 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-11-19 14:17:59,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2021-11-19 14:17:59,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:17:59,373 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:17:59,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:17:59,374 INFO L85 PathProgramCache]: Analyzing trace with hash 509315934, now seen corresponding path program 1 times [2021-11-19 14:17:59,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:17:59,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [838121715] [2021-11-19 14:17:59,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:17:59,376 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:17:59,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:17:59,377 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:17:59,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-11-19 14:18:00,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:18:00,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 1663 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:18:00,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:18:01,583 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-19 14:18:01,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:18:02,213 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 24 proven. 12 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2021-11-19 14:18:02,213 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:18:02,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [838121715] [2021-11-19 14:18:02,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [838121715] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:18:02,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:18:02,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 9 [2021-11-19 14:18:02,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073652243] [2021-11-19 14:18:02,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:18:02,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:18:02,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:18:02,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:18:02,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:18:02,217 INFO L87 Difference]: Start difference. First operand 6780 states and 9642 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 14:18:04,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:18:04,719 INFO L93 Difference]: Finished difference Result 14437 states and 20649 transitions. [2021-11-19 14:18:04,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:18:04,724 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) Word has length 220 [2021-11-19 14:18:04,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:18:04,754 INFO L225 Difference]: With dead ends: 14437 [2021-11-19 14:18:04,754 INFO L226 Difference]: Without dead ends: 8192 [2021-11-19 14:18:04,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-11-19 14:18:04,774 INFO L933 BasicCegarLoop]: 3437 mSDtfsCounter, 1630 mSDsluCounter, 20952 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 458 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 24389 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 458 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:18:04,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1744 Valid, 24389 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [458 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-19 14:18:04,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8192 states. [2021-11-19 14:18:05,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8192 to 6786. [2021-11-19 14:18:05,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6786 states, 4460 states have (on average 1.2748878923766815) internal successors, (5686), 4619 states have internal predecessors, (5686), 1921 states have call successors, (1921), 399 states have call predecessors, (1921), 400 states have return successors, (2041), 1871 states have call predecessors, (2041), 1919 states have call successors, (2041) [2021-11-19 14:18:05,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6786 states to 6786 states and 9648 transitions. [2021-11-19 14:18:05,568 INFO L78 Accepts]: Start accepts. Automaton has 6786 states and 9648 transitions. Word has length 220 [2021-11-19 14:18:05,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:18:05,568 INFO L470 AbstractCegarLoop]: Abstraction has 6786 states and 9648 transitions. [2021-11-19 14:18:05,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 14:18:05,568 INFO L276 IsEmpty]: Start isEmpty. Operand 6786 states and 9648 transitions. [2021-11-19 14:18:05,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-11-19 14:18:05,571 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:18:05,572 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:18:05,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-11-19 14:18:05,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:18:05,772 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:18:05,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:18:05,773 INFO L85 PathProgramCache]: Analyzing trace with hash 462598390, now seen corresponding path program 1 times [2021-11-19 14:18:05,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:18:05,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1539564369] [2021-11-19 14:18:05,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:18:05,775 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:18:05,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:18:05,776 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:18:05,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2021-11-19 14:18:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:18:07,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 1765 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 14:18:07,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:18:08,263 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2021-11-19 14:18:08,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:18:09,150 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2021-11-19 14:18:09,150 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:18:09,150 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1539564369] [2021-11-19 14:18:09,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1539564369] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:18:09,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:18:09,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2021-11-19 14:18:09,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499275541] [2021-11-19 14:18:09,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:18:09,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:18:09,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:18:09,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:18:09,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:18:09,152 INFO L87 Difference]: Start difference. First operand 6786 states and 9648 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 14:18:11,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:18:11,529 INFO L93 Difference]: Finished difference Result 13699 states and 19706 transitions. [2021-11-19 14:18:11,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:18:11,531 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) Word has length 222 [2021-11-19 14:18:11,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:18:11,557 INFO L225 Difference]: With dead ends: 13699 [2021-11-19 14:18:11,557 INFO L226 Difference]: Without dead ends: 6932 [2021-11-19 14:18:11,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:18:11,580 INFO L933 BasicCegarLoop]: 3277 mSDtfsCounter, 23 mSDsluCounter, 16359 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 19636 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:18:11,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 19636 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-19 14:18:11,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6932 states. [2021-11-19 14:18:12,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6932 to 6822. [2021-11-19 14:18:12,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6822 states, 4488 states have (on average 1.2731729055258467) internal successors, (5714), 4643 states have internal predecessors, (5714), 1921 states have call successors, (1921), 399 states have call predecessors, (1921), 408 states have return successors, (2071), 1883 states have call predecessors, (2071), 1919 states have call successors, (2071) [2021-11-19 14:18:12,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6822 states to 6822 states and 9706 transitions. [2021-11-19 14:18:12,494 INFO L78 Accepts]: Start accepts. Automaton has 6822 states and 9706 transitions. Word has length 222 [2021-11-19 14:18:12,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:18:12,494 INFO L470 AbstractCegarLoop]: Abstraction has 6822 states and 9706 transitions. [2021-11-19 14:18:12,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 14:18:12,495 INFO L276 IsEmpty]: Start isEmpty. Operand 6822 states and 9706 transitions. [2021-11-19 14:18:12,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-11-19 14:18:12,498 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:18:12,498 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:18:12,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2021-11-19 14:18:12,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:18:12,699 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:18:12,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:18:12,699 INFO L85 PathProgramCache]: Analyzing trace with hash -115153281, now seen corresponding path program 1 times [2021-11-19 14:18:12,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:18:12,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1828090610] [2021-11-19 14:18:12,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:18:12,701 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:18:12,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:18:12,702 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:18:12,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-11-19 14:18:14,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:18:14,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 1797 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 14:18:14,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:18:15,195 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2021-11-19 14:18:15,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:18:16,137 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2021-11-19 14:18:16,137 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:18:16,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1828090610] [2021-11-19 14:18:16,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1828090610] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:18:16,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:18:16,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2021-11-19 14:18:16,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933304721] [2021-11-19 14:18:16,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:18:16,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:18:16,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:18:16,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:18:16,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:18:16,139 INFO L87 Difference]: Start difference. First operand 6822 states and 9706 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-19 14:18:18,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:18:18,479 INFO L93 Difference]: Finished difference Result 13751 states and 19780 transitions. [2021-11-19 14:18:18,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:18:18,489 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) Word has length 238 [2021-11-19 14:18:18,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:18:18,516 INFO L225 Difference]: With dead ends: 13751 [2021-11-19 14:18:18,516 INFO L226 Difference]: Without dead ends: 6948 [2021-11-19 14:18:18,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 464 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:18:18,540 INFO L933 BasicCegarLoop]: 3264 mSDtfsCounter, 23 mSDsluCounter, 16303 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 19567 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:18:18,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 19567 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-19 14:18:18,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6948 states. [2021-11-19 14:18:19,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6948 to 6838. [2021-11-19 14:18:19,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6838 states, 4504 states have (on average 1.272202486678508) internal successors, (5730), 4651 states have internal predecessors, (5730), 1921 states have call successors, (1921), 399 states have call predecessors, (1921), 408 states have return successors, (2071), 1891 states have call predecessors, (2071), 1919 states have call successors, (2071) [2021-11-19 14:18:19,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6838 states to 6838 states and 9722 transitions. [2021-11-19 14:18:19,462 INFO L78 Accepts]: Start accepts. Automaton has 6838 states and 9722 transitions. Word has length 238 [2021-11-19 14:18:19,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:18:19,463 INFO L470 AbstractCegarLoop]: Abstraction has 6838 states and 9722 transitions. [2021-11-19 14:18:19,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-19 14:18:19,463 INFO L276 IsEmpty]: Start isEmpty. Operand 6838 states and 9722 transitions. [2021-11-19 14:18:19,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-11-19 14:18:19,466 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:18:19,466 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-11-19 14:18:19,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2021-11-19 14:18:19,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:18:19,667 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:18:19,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:18:19,667 INFO L85 PathProgramCache]: Analyzing trace with hash 357198551, now seen corresponding path program 1 times [2021-11-19 14:18:19,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:18:19,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1259623637] [2021-11-19 14:18:19,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:18:19,669 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:18:19,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:18:19,670 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:18:19,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2021-11-19 14:18:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:18:21,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 1693 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:18:21,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:18:22,178 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 202 proven. 3 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2021-11-19 14:18:22,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:18:23,185 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 51 proven. 15 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2021-11-19 14:18:23,186 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:18:23,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1259623637] [2021-11-19 14:18:23,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1259623637] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:18:23,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [232298356] [2021-11-19 14:18:23,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:18:23,187 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:18:23,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:18:23,188 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:18:23,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2021-11-19 14:18:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:18:27,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 1693 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-19 14:18:27,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:18:28,472 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2021-11-19 14:18:28,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:18:29,125 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 30 proven. 6 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2021-11-19 14:18:29,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [232298356] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:18:29,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:18:29,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [18, 18, 15] total 21 [2021-11-19 14:18:29,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377643150] [2021-11-19 14:18:29,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:18:29,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-19 14:18:29,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:18:29,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-19 14:18:29,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2021-11-19 14:18:29,128 INFO L87 Difference]: Start difference. First operand 6838 states and 9722 transitions. Second operand has 15 states, 14 states have (on average 6.928571428571429) internal successors, (97), 14 states have internal predecessors, (97), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) [2021-11-19 14:18:31,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:18:31,496 INFO L93 Difference]: Finished difference Result 13137 states and 18631 transitions. [2021-11-19 14:18:31,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-19 14:18:31,497 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.928571428571429) internal successors, (97), 14 states have internal predecessors, (97), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) Word has length 229 [2021-11-19 14:18:31,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:18:31,524 INFO L225 Difference]: With dead ends: 13137 [2021-11-19 14:18:31,524 INFO L226 Difference]: Without dead ends: 6841 [2021-11-19 14:18:31,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 921 GetRequests, 893 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=125, Invalid=745, Unknown=0, NotChecked=0, Total=870 [2021-11-19 14:18:31,546 INFO L933 BasicCegarLoop]: 3215 mSDtfsCounter, 54 mSDsluCounter, 41720 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 44935 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:18:31,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 44935 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-19 14:18:31,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6841 states. [2021-11-19 14:18:32,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6841 to 6824. [2021-11-19 14:18:32,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6824 states, 4493 states have (on average 1.2724237703093702) internal successors, (5717), 4640 states have internal predecessors, (5717), 1919 states have call successors, (1919), 398 states have call predecessors, (1919), 407 states have return successors, (2069), 1889 states have call predecessors, (2069), 1917 states have call successors, (2069) [2021-11-19 14:18:32,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6824 states to 6824 states and 9705 transitions. [2021-11-19 14:18:32,452 INFO L78 Accepts]: Start accepts. Automaton has 6824 states and 9705 transitions. Word has length 229 [2021-11-19 14:18:32,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:18:32,452 INFO L470 AbstractCegarLoop]: Abstraction has 6824 states and 9705 transitions. [2021-11-19 14:18:32,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.928571428571429) internal successors, (97), 14 states have internal predecessors, (97), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) [2021-11-19 14:18:32,453 INFO L276 IsEmpty]: Start isEmpty. Operand 6824 states and 9705 transitions. [2021-11-19 14:18:32,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-11-19 14:18:32,456 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:18:32,457 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:18:32,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (46)] Forceful destruction successful, exit code 0 [2021-11-19 14:18:32,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (45)] Ended with exit code 0 [2021-11-19 14:18:32,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:18:32,858 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:18:32,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:18:32,858 INFO L85 PathProgramCache]: Analyzing trace with hash -218014754, now seen corresponding path program 1 times [2021-11-19 14:18:32,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:18:32,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1731046229] [2021-11-19 14:18:32,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:18:32,862 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:18:32,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:18:32,863 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:18:32,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-11-19 14:18:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:18:34,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 1797 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 14:18:34,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:18:35,698 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2021-11-19 14:18:35,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:18:37,061 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2021-11-19 14:18:37,061 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:18:37,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1731046229] [2021-11-19 14:18:37,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1731046229] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:18:37,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:18:37,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2021-11-19 14:18:37,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280623503] [2021-11-19 14:18:37,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:18:37,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 14:18:37,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:18:37,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 14:18:37,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-11-19 14:18:37,064 INFO L87 Difference]: Start difference. First operand 6824 states and 9705 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-19 14:18:38,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:18:38,321 INFO L93 Difference]: Finished difference Result 13795 states and 19870 transitions. [2021-11-19 14:18:38,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:18:38,322 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) Word has length 238 [2021-11-19 14:18:38,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:18:38,349 INFO L225 Difference]: With dead ends: 13795 [2021-11-19 14:18:38,349 INFO L226 Difference]: Without dead ends: 6990 [2021-11-19 14:18:38,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-11-19 14:18:38,374 INFO L933 BasicCegarLoop]: 3282 mSDtfsCounter, 27 mSDsluCounter, 22939 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 26221 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:18:38,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 26221 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:18:38,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6990 states. [2021-11-19 14:18:39,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6990 to 6864. [2021-11-19 14:18:39,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6864 states, 4529 states have (on average 1.2702583351733274) internal successors, (5753), 4668 states have internal predecessors, (5753), 1919 states have call successors, (1919), 398 states have call predecessors, (1919), 411 states have return successors, (2087), 1901 states have call predecessors, (2087), 1917 states have call successors, (2087) [2021-11-19 14:18:39,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6864 states to 6864 states and 9759 transitions. [2021-11-19 14:18:39,369 INFO L78 Accepts]: Start accepts. Automaton has 6864 states and 9759 transitions. Word has length 238 [2021-11-19 14:18:39,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:18:39,370 INFO L470 AbstractCegarLoop]: Abstraction has 6864 states and 9759 transitions. [2021-11-19 14:18:39,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-19 14:18:39,370 INFO L276 IsEmpty]: Start isEmpty. Operand 6864 states and 9759 transitions. [2021-11-19 14:18:39,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-11-19 14:18:39,376 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:18:39,376 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:18:39,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2021-11-19 14:18:39,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:18:39,591 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:18:39,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:18:39,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1318971007, now seen corresponding path program 2 times [2021-11-19 14:18:39,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:18:39,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [734249414] [2021-11-19 14:18:39,594 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 14:18:39,594 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:18:39,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:18:39,596 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:18:39,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2021-11-19 14:19:35,081 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 14:19:35,081 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:19:35,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 1797 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-19 14:19:35,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:19:35,913 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2021-11-19 14:19:35,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:19:37,169 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2021-11-19 14:19:37,169 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:19:37,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [734249414] [2021-11-19 14:19:37,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [734249414] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:19:37,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:19:37,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2021-11-19 14:19:37,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273647582] [2021-11-19 14:19:37,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:19:37,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 14:19:37,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:19:37,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 14:19:37,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-11-19 14:19:37,171 INFO L87 Difference]: Start difference. First operand 6864 states and 9759 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-19 14:19:38,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:19:38,393 INFO L93 Difference]: Finished difference Result 13859 states and 19926 transitions. [2021-11-19 14:19:38,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:19:38,394 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) Word has length 238 [2021-11-19 14:19:38,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:19:38,419 INFO L225 Difference]: With dead ends: 13859 [2021-11-19 14:19:38,420 INFO L226 Difference]: Without dead ends: 7014 [2021-11-19 14:19:38,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-11-19 14:19:38,440 INFO L933 BasicCegarLoop]: 3281 mSDtfsCounter, 27 mSDsluCounter, 22932 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 26213 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:19:38,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 26213 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:19:38,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7014 states. [2021-11-19 14:19:39,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7014 to 6888. [2021-11-19 14:19:39,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6888 states, 4553 states have (on average 1.268833735998243) internal successors, (5777), 4684 states have internal predecessors, (5777), 1919 states have call successors, (1919), 398 states have call predecessors, (1919), 411 states have return successors, (2087), 1909 states have call predecessors, (2087), 1917 states have call successors, (2087) [2021-11-19 14:19:39,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6888 states to 6888 states and 9783 transitions. [2021-11-19 14:19:39,236 INFO L78 Accepts]: Start accepts. Automaton has 6888 states and 9783 transitions. Word has length 238 [2021-11-19 14:19:39,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:19:39,236 INFO L470 AbstractCegarLoop]: Abstraction has 6888 states and 9783 transitions. [2021-11-19 14:19:39,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-19 14:19:39,236 INFO L276 IsEmpty]: Start isEmpty. Operand 6888 states and 9783 transitions. [2021-11-19 14:19:39,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-19 14:19:39,240 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:19:39,241 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 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] [2021-11-19 14:19:39,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2021-11-19 14:19:39,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:19:39,441 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:19:39,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:19:39,442 INFO L85 PathProgramCache]: Analyzing trace with hash 99385938, now seen corresponding path program 1 times [2021-11-19 14:19:39,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:19:39,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [69410191] [2021-11-19 14:19:39,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:19:39,445 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:19:39,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:19:39,446 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:19:39,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2021-11-19 14:19:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:19:41,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 1748 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 14:19:41,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:19:42,146 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-11-19 14:19:42,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:19:43,877 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2021-11-19 14:19:43,878 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:19:43,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [69410191] [2021-11-19 14:19:43,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [69410191] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:19:43,878 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:19:43,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 17] imperfect sequences [] total 31 [2021-11-19 14:19:43,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533661736] [2021-11-19 14:19:43,879 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:19:43,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-19 14:19:43,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:19:43,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-19 14:19:43,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=856, Unknown=0, NotChecked=0, Total=930 [2021-11-19 14:19:43,880 INFO L87 Difference]: Start difference. First operand 6888 states and 9783 transitions. Second operand has 31 states, 27 states have (on average 4.7407407407407405) internal successors, (128), 25 states have internal predecessors, (128), 12 states have call successors, (50), 2 states have call predecessors, (50), 9 states have return successors, (47), 16 states have call predecessors, (47), 12 states have call successors, (47) [2021-11-19 14:19:54,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:19:54,008 INFO L93 Difference]: Finished difference Result 16080 states and 23090 transitions. [2021-11-19 14:19:54,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-19 14:19:54,009 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 27 states have (on average 4.7407407407407405) internal successors, (128), 25 states have internal predecessors, (128), 12 states have call successors, (50), 2 states have call predecessors, (50), 9 states have return successors, (47), 16 states have call predecessors, (47), 12 states have call successors, (47) Word has length 234 [2021-11-19 14:19:54,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:19:54,043 INFO L225 Difference]: With dead ends: 16080 [2021-11-19 14:19:54,043 INFO L226 Difference]: Without dead ends: 9790 [2021-11-19 14:19:54,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=285, Invalid=2685, Unknown=0, NotChecked=0, Total=2970 [2021-11-19 14:19:54,064 INFO L933 BasicCegarLoop]: 4385 mSDtfsCounter, 5077 mSDsluCounter, 94495 mSDsCounter, 0 mSdLazyCounter, 2909 mSolverCounterSat, 1939 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5253 SdHoareTripleChecker+Valid, 98880 SdHoareTripleChecker+Invalid, 4848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1939 IncrementalHoareTripleChecker+Valid, 2909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:19:54,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5253 Valid, 98880 Invalid, 4848 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1939 Valid, 2909 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2021-11-19 14:19:54,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9790 states. [2021-11-19 14:19:54,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9790 to 6922. [2021-11-19 14:19:54,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6922 states, 4572 states have (on average 1.2677165354330708) internal successors, (5796), 4702 states have internal predecessors, (5796), 1930 states have call successors, (1930), 398 states have call predecessors, (1930), 415 states have return successors, (2111), 1922 states have call predecessors, (2111), 1928 states have call successors, (2111) [2021-11-19 14:19:54,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6922 states to 6922 states and 9837 transitions. [2021-11-19 14:19:54,997 INFO L78 Accepts]: Start accepts. Automaton has 6922 states and 9837 transitions. Word has length 234 [2021-11-19 14:19:54,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:19:54,997 INFO L470 AbstractCegarLoop]: Abstraction has 6922 states and 9837 transitions. [2021-11-19 14:19:54,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 27 states have (on average 4.7407407407407405) internal successors, (128), 25 states have internal predecessors, (128), 12 states have call successors, (50), 2 states have call predecessors, (50), 9 states have return successors, (47), 16 states have call predecessors, (47), 12 states have call successors, (47) [2021-11-19 14:19:54,998 INFO L276 IsEmpty]: Start isEmpty. Operand 6922 states and 9837 transitions. [2021-11-19 14:19:55,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-11-19 14:19:55,002 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:19:55,002 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:19:55,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2021-11-19 14:19:55,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:19:55,207 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:19:55,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:19:55,208 INFO L85 PathProgramCache]: Analyzing trace with hash 604864014, now seen corresponding path program 1 times [2021-11-19 14:19:55,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:19:55,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1409064541] [2021-11-19 14:19:55,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:19:55,210 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:19:55,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:19:55,211 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:19:55,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2021-11-19 14:19:57,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:19:57,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 1861 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-19 14:19:57,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:19:58,580 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2021-11-19 14:19:58,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:20:01,034 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 74 proven. 18 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2021-11-19 14:20:01,034 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:20:01,034 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1409064541] [2021-11-19 14:20:01,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1409064541] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:20:01,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:20:01,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [10] total 20 [2021-11-19 14:20:01,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590432174] [2021-11-19 14:20:01,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:20:01,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 14:20:01,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:20:01,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 14:20:01,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2021-11-19 14:20:01,036 INFO L87 Difference]: Start difference. First operand 6922 states and 9837 transitions. Second operand has 13 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 5 states have call successors, (39), 2 states have call predecessors, (39), 5 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) [2021-11-19 14:20:03,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:20:03,358 INFO L93 Difference]: Finished difference Result 13635 states and 19584 transitions. [2021-11-19 14:20:03,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-19 14:20:03,359 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 5 states have call successors, (39), 2 states have call predecessors, (39), 5 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) Word has length 270 [2021-11-19 14:20:03,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:20:03,396 INFO L225 Difference]: With dead ends: 13635 [2021-11-19 14:20:03,396 INFO L226 Difference]: Without dead ends: 6732 [2021-11-19 14:20:03,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=89, Invalid=417, Unknown=0, NotChecked=0, Total=506 [2021-11-19 14:20:03,430 INFO L933 BasicCegarLoop]: 3226 mSDtfsCounter, 9 mSDsluCounter, 28955 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 32181 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:20:03,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 32181 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-19 14:20:03,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6732 states. [2021-11-19 14:20:04,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6732 to 6720. [2021-11-19 14:20:04,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6720 states, 4422 states have (on average 1.2682044323835369) internal successors, (5608), 4564 states have internal predecessors, (5608), 1882 states have call successors, (1882), 396 states have call predecessors, (1882), 411 states have return successors, (2046), 1860 states have call predecessors, (2046), 1880 states have call successors, (2046) [2021-11-19 14:20:04,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6720 states to 6720 states and 9536 transitions. [2021-11-19 14:20:04,290 INFO L78 Accepts]: Start accepts. Automaton has 6720 states and 9536 transitions. Word has length 270 [2021-11-19 14:20:04,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:20:04,290 INFO L470 AbstractCegarLoop]: Abstraction has 6720 states and 9536 transitions. [2021-11-19 14:20:04,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 5 states have call successors, (39), 2 states have call predecessors, (39), 5 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) [2021-11-19 14:20:04,290 INFO L276 IsEmpty]: Start isEmpty. Operand 6720 states and 9536 transitions. [2021-11-19 14:20:04,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-11-19 14:20:04,295 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:20:04,295 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-19 14:20:04,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2021-11-19 14:20:04,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:20:04,511 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:20:04,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:20:04,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1097027709, now seen corresponding path program 1 times [2021-11-19 14:20:04,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:20:04,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44981981] [2021-11-19 14:20:04,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:20:04,514 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:20:04,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:20:04,515 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:20:04,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2021-11-19 14:20:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:20:06,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 1802 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 14:20:06,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:20:07,234 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2021-11-19 14:20:07,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:20:09,454 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-11-19 14:20:09,454 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:20:09,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44981981] [2021-11-19 14:20:09,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44981981] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:20:09,454 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:20:09,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-11-19 14:20:09,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938739580] [2021-11-19 14:20:09,455 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:20:09,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-19 14:20:09,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:20:09,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 14:20:09,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-11-19 14:20:09,456 INFO L87 Difference]: Start difference. First operand 6720 states and 9536 transitions. Second operand has 18 states, 18 states have (on average 8.944444444444445) internal successors, (161), 14 states have internal predecessors, (161), 2 states have call successors, (55), 2 states have call predecessors, (55), 6 states have return successors, (54), 6 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-19 14:20:11,927 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 [] [2021-11-19 14:20:12,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:20:12,881 INFO L93 Difference]: Finished difference Result 13485 states and 19346 transitions. [2021-11-19 14:20:12,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 14:20:12,882 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.944444444444445) internal successors, (161), 14 states have internal predecessors, (161), 2 states have call successors, (55), 2 states have call predecessors, (55), 6 states have return successors, (54), 6 states have call predecessors, (54), 2 states have call successors, (54) Word has length 254 [2021-11-19 14:20:12,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:20:12,908 INFO L225 Difference]: With dead ends: 13485 [2021-11-19 14:20:12,908 INFO L226 Difference]: Without dead ends: 6784 [2021-11-19 14:20:12,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-11-19 14:20:12,932 INFO L933 BasicCegarLoop]: 3251 mSDtfsCounter, 14 mSDsluCounter, 38991 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 42242 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:20:12,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 42242 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-19 14:20:12,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6784 states. [2021-11-19 14:20:13,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6784 to 6760. [2021-11-19 14:20:13,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6760 states, 4454 states have (on average 1.2662775033677593) internal successors, (5640), 4596 states have internal predecessors, (5640), 1882 states have call successors, (1882), 396 states have call predecessors, (1882), 419 states have return successors, (2056), 1868 states have call predecessors, (2056), 1880 states have call successors, (2056) [2021-11-19 14:20:13,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6760 states to 6760 states and 9578 transitions. [2021-11-19 14:20:13,944 INFO L78 Accepts]: Start accepts. Automaton has 6760 states and 9578 transitions. Word has length 254 [2021-11-19 14:20:13,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:20:13,945 INFO L470 AbstractCegarLoop]: Abstraction has 6760 states and 9578 transitions. [2021-11-19 14:20:13,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.944444444444445) internal successors, (161), 14 states have internal predecessors, (161), 2 states have call successors, (55), 2 states have call predecessors, (55), 6 states have return successors, (54), 6 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-19 14:20:13,945 INFO L276 IsEmpty]: Start isEmpty. Operand 6760 states and 9578 transitions. [2021-11-19 14:20:13,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-11-19 14:20:13,951 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:20:13,951 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2021-11-19 14:20:13,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2021-11-19 14:20:14,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:20:14,167 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:20:14,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:20:14,168 INFO L85 PathProgramCache]: Analyzing trace with hash 846436593, now seen corresponding path program 1 times [2021-11-19 14:20:14,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:20:14,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1042261266] [2021-11-19 14:20:14,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:20:14,170 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:20:14,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:20:14,172 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:20:14,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2021-11-19 14:20:15,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:20:15,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 1793 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-19 14:20:15,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:20:16,943 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 454 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2021-11-19 14:20:16,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:20:18,874 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 51 proven. 32 refuted. 0 times theorem prover too weak. 713 trivial. 0 not checked. [2021-11-19 14:20:18,875 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:20:18,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1042261266] [2021-11-19 14:20:18,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1042261266] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:20:18,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:20:18,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [10] total 19 [2021-11-19 14:20:18,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719462093] [2021-11-19 14:20:18,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:20:18,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 14:20:18,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:20:18,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 14:20:18,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2021-11-19 14:20:18,878 INFO L87 Difference]: Start difference. First operand 6760 states and 9578 transitions. Second operand has 12 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 4 states have call successors, (41), 2 states have call predecessors, (41), 5 states have return successors, (37), 6 states have call predecessors, (37), 4 states have call successors, (37) [2021-11-19 14:20:20,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:20:20,960 INFO L93 Difference]: Finished difference Result 13350 states and 18893 transitions. [2021-11-19 14:20:20,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-19 14:20:20,960 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 4 states have call successors, (41), 2 states have call predecessors, (41), 5 states have return successors, (37), 6 states have call predecessors, (37), 4 states have call successors, (37) Word has length 275 [2021-11-19 14:20:20,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:20:20,987 INFO L225 Difference]: With dead ends: 13350 [2021-11-19 14:20:20,987 INFO L226 Difference]: Without dead ends: 6785 [2021-11-19 14:20:21,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 531 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2021-11-19 14:20:21,008 INFO L933 BasicCegarLoop]: 3227 mSDtfsCounter, 493 mSDsluCounter, 25118 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 28345 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:20:21,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [654 Valid, 28345 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-19 14:20:21,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6785 states. [2021-11-19 14:20:21,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6785 to 6760. [2021-11-19 14:20:21,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6760 states, 4454 states have (on average 1.265828468792097) internal successors, (5638), 4594 states have internal predecessors, (5638), 1882 states have call successors, (1882), 396 states have call predecessors, (1882), 419 states have return successors, (2056), 1868 states have call predecessors, (2056), 1880 states have call successors, (2056) [2021-11-19 14:20:22,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6760 states to 6760 states and 9576 transitions. [2021-11-19 14:20:22,015 INFO L78 Accepts]: Start accepts. Automaton has 6760 states and 9576 transitions. Word has length 275 [2021-11-19 14:20:22,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:20:22,015 INFO L470 AbstractCegarLoop]: Abstraction has 6760 states and 9576 transitions. [2021-11-19 14:20:22,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 4 states have call successors, (41), 2 states have call predecessors, (41), 5 states have return successors, (37), 6 states have call predecessors, (37), 4 states have call successors, (37) [2021-11-19 14:20:22,015 INFO L276 IsEmpty]: Start isEmpty. Operand 6760 states and 9576 transitions. [2021-11-19 14:20:22,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-11-19 14:20:22,019 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:20:22,019 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-19 14:20:22,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2021-11-19 14:20:22,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:20:22,221 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:20:22,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:20:22,222 INFO L85 PathProgramCache]: Analyzing trace with hash 528441102, now seen corresponding path program 1 times [2021-11-19 14:20:22,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:20:22,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974134474] [2021-11-19 14:20:22,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:20:22,225 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:20:22,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:20:22,226 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:20:22,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2021-11-19 14:20:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:20:23,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 1792 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-19 14:20:23,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:20:25,465 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2021-11-19 14:20:25,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:20:31,079 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-11-19 14:20:31,079 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:20:31,079 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974134474] [2021-11-19 14:20:31,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974134474] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:20:31,079 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:20:31,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 14] imperfect sequences [] total 24 [2021-11-19 14:20:31,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106697467] [2021-11-19 14:20:31,080 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:20:31,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-19 14:20:31,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:20:31,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-19 14:20:31,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2021-11-19 14:20:31,081 INFO L87 Difference]: Start difference. First operand 6760 states and 9576 transitions. Second operand has 24 states, 20 states have (on average 8.0) internal successors, (160), 17 states have internal predecessors, (160), 6 states have call successors, (56), 2 states have call predecessors, (56), 10 states have return successors, (55), 9 states have call predecessors, (55), 6 states have call successors, (55) [2021-11-19 14:20:36,699 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:20:43,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:20:43,084 INFO L93 Difference]: Finished difference Result 14061 states and 20154 transitions. [2021-11-19 14:20:43,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-19 14:20:43,086 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 20 states have (on average 8.0) internal successors, (160), 17 states have internal predecessors, (160), 6 states have call successors, (56), 2 states have call predecessors, (56), 10 states have return successors, (55), 9 states have call predecessors, (55), 6 states have call successors, (55) Word has length 258 [2021-11-19 14:20:43,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:20:43,121 INFO L225 Difference]: With dead ends: 14061 [2021-11-19 14:20:43,121 INFO L226 Difference]: Without dead ends: 7320 [2021-11-19 14:20:43,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 491 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2021-11-19 14:20:43,146 INFO L933 BasicCegarLoop]: 3333 mSDtfsCounter, 333 mSDsluCounter, 56232 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 59565 SdHoareTripleChecker+Invalid, 1156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:20:43,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [367 Valid, 59565 Invalid, 1156 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [108 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2021-11-19 14:20:43,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7320 states. [2021-11-19 14:20:44,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7320 to 6760. [2021-11-19 14:20:44,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6760 states, 4454 states have (on average 1.265828468792097) internal successors, (5638), 4594 states have internal predecessors, (5638), 1882 states have call successors, (1882), 396 states have call predecessors, (1882), 419 states have return successors, (2056), 1868 states have call predecessors, (2056), 1880 states have call successors, (2056) [2021-11-19 14:20:44,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6760 states to 6760 states and 9576 transitions. [2021-11-19 14:20:44,241 INFO L78 Accepts]: Start accepts. Automaton has 6760 states and 9576 transitions. Word has length 258 [2021-11-19 14:20:44,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:20:44,242 INFO L470 AbstractCegarLoop]: Abstraction has 6760 states and 9576 transitions. [2021-11-19 14:20:44,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 20 states have (on average 8.0) internal successors, (160), 17 states have internal predecessors, (160), 6 states have call successors, (56), 2 states have call predecessors, (56), 10 states have return successors, (55), 9 states have call predecessors, (55), 6 states have call successors, (55) [2021-11-19 14:20:44,242 INFO L276 IsEmpty]: Start isEmpty. Operand 6760 states and 9576 transitions. [2021-11-19 14:20:44,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-11-19 14:20:44,245 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:20:44,246 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:20:44,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2021-11-19 14:20:44,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:20:44,446 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:20:44,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:20:44,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1791181097, now seen corresponding path program 1 times [2021-11-19 14:20:44,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:20:44,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236703126] [2021-11-19 14:20:44,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:20:44,449 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:20:44,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:20:44,450 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:20:44,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2021-11-19 14:20:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:20:46,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 1830 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 14:20:46,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:20:47,958 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 9 proven. 146 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2021-11-19 14:20:47,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:20:49,060 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2021-11-19 14:20:49,060 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:20:49,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236703126] [2021-11-19 14:20:49,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236703126] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:20:49,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [146727032] [2021-11-19 14:20:49,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:20:49,061 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:20:49,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:20:49,063 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:20:49,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2021-11-19 14:20:54,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:20:54,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 1830 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 14:20:54,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:20:55,540 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 9 proven. 146 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2021-11-19 14:20:55,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:20:56,541 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2021-11-19 14:20:56,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [146727032] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:20:56,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138864523] [2021-11-19 14:20:56,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:20:56,542 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:20:56,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:20:56,548 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:20:56,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2021-11-19 14:20:58,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:20:58,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 1830 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-19 14:20:58,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:20:59,318 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 9 proven. 173 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2021-11-19 14:20:59,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:21:00,261 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2021-11-19 14:21:00,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138864523] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:21:00,261 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 14:21:00,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 9, 7] total 14 [2021-11-19 14:21:00,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56353986] [2021-11-19 14:21:00,262 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 14:21:00,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 14:21:00,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:21:00,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 14:21:00,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:21:00,264 INFO L87 Difference]: Start difference. First operand 6760 states and 9576 transitions. Second operand has 14 states, 14 states have (on average 14.714285714285714) internal successors, (206), 14 states have internal predecessors, (206), 7 states have call successors, (64), 7 states have call predecessors, (64), 6 states have return successors, (61), 7 states have call predecessors, (61), 7 states have call successors, (61) [2021-11-19 14:21:02,404 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:21:04,413 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:21:06,424 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:21:08,431 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:21:13,271 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:21:14,922 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:21:16,939 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:21:18,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:21:31,030 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:21:33,049 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:21:34,874 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:21:41,375 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:21:43,041 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:21:45,060 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:21:47,074 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:21:51,270 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:21:57,868 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:21:59,695 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:23:13,891 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:23:18,529 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:23:51,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:23:51,923 INFO L93 Difference]: Finished difference Result 25756 states and 38040 transitions. [2021-11-19 14:23:51,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-19 14:23:51,924 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 14.714285714285714) internal successors, (206), 14 states have internal predecessors, (206), 7 states have call successors, (64), 7 states have call predecessors, (64), 6 states have return successors, (61), 7 states have call predecessors, (61), 7 states have call successors, (61) Word has length 254 [2021-11-19 14:23:51,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:23:52,031 INFO L225 Difference]: With dead ends: 25756 [2021-11-19 14:23:52,031 INFO L226 Difference]: Without dead ends: 25754 [2021-11-19 14:23:52,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1542 GetRequests, 1511 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=219, Invalid=837, Unknown=0, NotChecked=0, Total=1056 [2021-11-19 14:23:52,046 INFO L933 BasicCegarLoop]: 5905 mSDtfsCounter, 30733 mSDsluCounter, 17368 mSDsCounter, 0 mSdLazyCounter, 34237 mSolverCounterSat, 23245 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 151.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31849 SdHoareTripleChecker+Valid, 23273 SdHoareTripleChecker+Invalid, 57492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 23245 IncrementalHoareTripleChecker+Valid, 34237 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 165.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:23:52,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31849 Valid, 23273 Invalid, 57492 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [23245 Valid, 34237 Invalid, 10 Unknown, 0 Unchecked, 165.4s Time] [2021-11-19 14:23:52,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25754 states. [2021-11-19 14:23:56,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25754 to 25504. [2021-11-19 14:23:56,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25504 states, 16888 states have (on average 1.2630862150639508) internal successors, (21331), 17407 states have internal predecessors, (21331), 6967 states have call successors, (6967), 1386 states have call predecessors, (6967), 1644 states have return successors, (9450), 7095 states have call predecessors, (9450), 6965 states have call successors, (9450) [2021-11-19 14:23:56,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25504 states to 25504 states and 37748 transitions. [2021-11-19 14:23:56,283 INFO L78 Accepts]: Start accepts. Automaton has 25504 states and 37748 transitions. Word has length 254 [2021-11-19 14:23:56,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:23:56,284 INFO L470 AbstractCegarLoop]: Abstraction has 25504 states and 37748 transitions. [2021-11-19 14:23:56,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 14.714285714285714) internal successors, (206), 14 states have internal predecessors, (206), 7 states have call successors, (64), 7 states have call predecessors, (64), 6 states have return successors, (61), 7 states have call predecessors, (61), 7 states have call successors, (61) [2021-11-19 14:23:56,284 INFO L276 IsEmpty]: Start isEmpty. Operand 25504 states and 37748 transitions. [2021-11-19 14:23:56,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-11-19 14:23:56,287 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:23:56,288 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2021-11-19 14:23:56,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2021-11-19 14:23:56,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (55)] Forceful destruction successful, exit code 0 [2021-11-19 14:23:56,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (54)] Ended with exit code 0 [2021-11-19 14:23:56,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:23:56,889 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:23:56,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:23:56,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1632077396, now seen corresponding path program 1 times [2021-11-19 14:23:56,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:23:56,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182388324] [2021-11-19 14:23:56,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:23:56,892 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:23:56,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:23:56,892 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:23:56,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2021-11-19 14:23:58,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:23:58,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 1804 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 14:23:58,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:23:59,815 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 808 trivial. 0 not checked. [2021-11-19 14:23:59,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:24:00,684 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 808 trivial. 0 not checked. [2021-11-19 14:24:00,684 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:24:00,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [182388324] [2021-11-19 14:24:00,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [182388324] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:24:00,684 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:24:00,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 14:24:00,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377008323] [2021-11-19 14:24:00,685 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:24:00,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:24:00,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:24:00,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:24:00,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:24:00,686 INFO L87 Difference]: Start difference. First operand 25504 states and 37748 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (69), 4 states have call predecessors, (69), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-11-19 14:24:05,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:24:05,839 INFO L93 Difference]: Finished difference Result 38833 states and 57012 transitions. [2021-11-19 14:24:05,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:24:05,840 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (69), 4 states have call predecessors, (69), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 279 [2021-11-19 14:24:05,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:24:06,125 INFO L225 Difference]: With dead ends: 38833 [2021-11-19 14:24:06,125 INFO L226 Difference]: Without dead ends: 38831 [2021-11-19 14:24:06,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:24:06,140 INFO L933 BasicCegarLoop]: 3769 mSDtfsCounter, 2121 mSDsluCounter, 9754 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2122 SdHoareTripleChecker+Valid, 13523 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:24:06,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2122 Valid, 13523 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:24:06,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38831 states. [2021-11-19 14:24:12,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38831 to 38649. [2021-11-19 14:24:12,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38649 states, 25610 states have (on average 1.250839515814135) internal successors, (32034), 26337 states have internal predecessors, (32034), 10309 states have call successors, (10309), 2393 states have call predecessors, (10309), 2725 states have return successors, (14409), 10400 states have call predecessors, (14409), 10307 states have call successors, (14409) [2021-11-19 14:24:12,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38649 states to 38649 states and 56752 transitions. [2021-11-19 14:24:12,603 INFO L78 Accepts]: Start accepts. Automaton has 38649 states and 56752 transitions. Word has length 279 [2021-11-19 14:24:12,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:24:12,604 INFO L470 AbstractCegarLoop]: Abstraction has 38649 states and 56752 transitions. [2021-11-19 14:24:12,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (69), 4 states have call predecessors, (69), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-11-19 14:24:12,604 INFO L276 IsEmpty]: Start isEmpty. Operand 38649 states and 56752 transitions. [2021-11-19 14:24:12,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-11-19 14:24:12,608 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:24:12,609 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-19 14:24:12,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (57)] Forceful destruction successful, exit code 0 [2021-11-19 14:24:12,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:24:12,809 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:24:12,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:24:12,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1965795433, now seen corresponding path program 1 times [2021-11-19 14:24:12,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:24:12,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [278978700] [2021-11-19 14:24:12,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:24:12,812 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:24:12,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:24:12,813 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:24:12,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2021-11-19 14:24:14,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:24:14,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 1846 conjuncts, 54 conjunts are in the unsatisfiable core [2021-11-19 14:24:14,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:24:17,704 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2021-11-19 14:24:17,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:24:32,471 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 33 proven. 6 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2021-11-19 14:24:32,471 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:24:32,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [278978700] [2021-11-19 14:24:32,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [278978700] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:24:32,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:24:32,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [25] total 47 [2021-11-19 14:24:32,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104495911] [2021-11-19 14:24:32,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:24:32,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-19 14:24:32,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:24:32,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-19 14:24:32,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=2043, Unknown=0, NotChecked=0, Total=2162 [2021-11-19 14:24:32,474 INFO L87 Difference]: Start difference. First operand 38649 states and 56752 transitions. Second operand has 27 states, 23 states have (on average 5.869565217391305) internal successors, (135), 20 states have internal predecessors, (135), 7 states have call successors, (43), 2 states have call predecessors, (43), 9 states have return successors, (40), 11 states have call predecessors, (40), 7 states have call successors, (40) [2021-11-19 14:24:39,809 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 [] [2021-11-19 14:24:51,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:24:51,611 INFO L93 Difference]: Finished difference Result 82631 states and 125557 transitions. [2021-11-19 14:24:51,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-19 14:24:51,612 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 23 states have (on average 5.869565217391305) internal successors, (135), 20 states have internal predecessors, (135), 7 states have call successors, (43), 2 states have call predecessors, (43), 9 states have return successors, (40), 11 states have call predecessors, (40), 7 states have call successors, (40) Word has length 275 [2021-11-19 14:24:51,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:24:51,806 INFO L225 Difference]: With dead ends: 82631 [2021-11-19 14:24:51,806 INFO L226 Difference]: Without dead ends: 44001 [2021-11-19 14:24:52,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 562 GetRequests, 502 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=228, Invalid=3432, Unknown=0, NotChecked=0, Total=3660 [2021-11-19 14:24:52,190 INFO L933 BasicCegarLoop]: 3294 mSDtfsCounter, 254 mSDsluCounter, 71978 mSDsCounter, 0 mSdLazyCounter, 2244 mSolverCounterSat, 76 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 75272 SdHoareTripleChecker+Invalid, 2321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2244 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:24:52,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 75272 Invalid, 2321 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [76 Valid, 2244 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2021-11-19 14:24:52,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44001 states. [2021-11-19 14:24:58,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44001 to 38327. [2021-11-19 14:24:58,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38327 states, 25400 states have (on average 1.2518110236220472) internal successors, (31796), 26120 states have internal predecessors, (31796), 10253 states have call successors, (10253), 2372 states have call predecessors, (10253), 2669 states have return successors, (14304), 10316 states have call predecessors, (14304), 10251 states have call successors, (14304) [2021-11-19 14:24:58,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38327 states to 38327 states and 56353 transitions. [2021-11-19 14:24:58,426 INFO L78 Accepts]: Start accepts. Automaton has 38327 states and 56353 transitions. Word has length 275 [2021-11-19 14:24:58,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:24:58,427 INFO L470 AbstractCegarLoop]: Abstraction has 38327 states and 56353 transitions. [2021-11-19 14:24:58,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 23 states have (on average 5.869565217391305) internal successors, (135), 20 states have internal predecessors, (135), 7 states have call successors, (43), 2 states have call predecessors, (43), 9 states have return successors, (40), 11 states have call predecessors, (40), 7 states have call successors, (40) [2021-11-19 14:24:58,427 INFO L276 IsEmpty]: Start isEmpty. Operand 38327 states and 56353 transitions. [2021-11-19 14:24:58,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2021-11-19 14:24:58,432 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:24:58,433 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2021-11-19 14:24:58,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (58)] Ended with exit code 0 [2021-11-19 14:24:58,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:24:58,634 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-19 14:24:58,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:24:58,634 INFO L85 PathProgramCache]: Analyzing trace with hash 856285303, now seen corresponding path program 1 times [2021-11-19 14:24:58,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:24:58,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1595748064] [2021-11-19 14:24:58,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:24:58,636 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:24:58,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:24:58,637 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:24:58,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca890505-688e-4a76-a0a9-9ee7d8043aeb/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process