./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--net--ethernet--atheros--alx--alx.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/bin/utaipan-EQgc7hIp5V --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 deb1ab2dfee1720097b2641f46d2c4bfdc556bdc54a3c09b9a590ecca720241b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:14:08,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:14:08,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:14:08,468 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:14:08,469 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:14:08,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:14:08,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:14:08,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:14:08,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:14:08,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:14:08,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:14:08,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:14:08,492 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:14:08,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:14:08,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:14:08,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:14:08,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:14:08,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:14:08,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:14:08,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:14:08,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:14:08,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:14:08,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:14:08,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:14:08,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:14:08,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:14:08,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:14:08,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:14:08,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:14:08,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:14:08,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:14:08,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:14:08,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:14:08,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:14:08,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:14:08,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:14:08,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:14:08,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:14:08,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:14:08,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:14:08,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:14:08,547 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:14:08,584 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:14:08,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:14:08,587 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:14:08,587 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:14:08,588 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:14:08,588 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:14:08,589 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:14:08,589 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:14:08,589 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:14:08,589 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:14:08,590 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:14:08,591 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:14:08,591 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:14:08,591 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:14:08,591 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:14:08,592 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:14:08,592 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:14:08,592 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:14:08,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:14:08,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:14:08,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:14:08,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:14:08,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:14:08,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:14:08,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:14:08,595 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:14:08,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:14:08,596 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:14:08,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:14:08,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:14:08,597 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:14:08,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:14:08,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:14:08,598 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:14:08,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:14:08,598 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:14:08,599 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:14:08,599 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:14:08,599 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> deb1ab2dfee1720097b2641f46d2c4bfdc556bdc54a3c09b9a590ecca720241b [2021-11-23 02:14:08,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:14:08,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:14:08,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:14:08,936 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:14:08,937 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:14:08,938 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i [2021-11-23 02:14:09,022 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/bin/utaipan-EQgc7hIp5V/data/b0068b775/8d2f105f2ce14aa999ac6d35cb29b72a/FLAGef8e7a6c2 [2021-11-23 02:14:10,247 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:14:10,248 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i [2021-11-23 02:14:10,331 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/bin/utaipan-EQgc7hIp5V/data/b0068b775/8d2f105f2ce14aa999ac6d35cb29b72a/FLAGef8e7a6c2 [2021-11-23 02:14:10,346 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/bin/utaipan-EQgc7hIp5V/data/b0068b775/8d2f105f2ce14aa999ac6d35cb29b72a [2021-11-23 02:14:10,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:14:10,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:14:10,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:14:10,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:14:10,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:14:10,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:14:10" (1/1) ... [2021-11-23 02:14:10,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@205517d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:10, skipping insertion in model container [2021-11-23 02:14:10,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:14:10" (1/1) ... [2021-11-23 02:14:10,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:14:10,617 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:14:17,216 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524188,524201] [2021-11-23 02:14:17,219 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524333,524346] [2021-11-23 02:14:17,220 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524479,524492] [2021-11-23 02:14:17,221 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524644,524657] [2021-11-23 02:14:17,221 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524802,524815] [2021-11-23 02:14:17,222 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524960,524973] [2021-11-23 02:14:17,222 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525118,525131] [2021-11-23 02:14:17,223 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525278,525291] [2021-11-23 02:14:17,224 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525437,525450] [2021-11-23 02:14:17,224 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525576,525589] [2021-11-23 02:14:17,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525718,525731] [2021-11-23 02:14:17,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525867,525880] [2021-11-23 02:14:17,226 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526006,526019] [2021-11-23 02:14:17,226 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526161,526174] [2021-11-23 02:14:17,227 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526321,526334] [2021-11-23 02:14:17,227 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526472,526485] [2021-11-23 02:14:17,228 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526623,526636] [2021-11-23 02:14:17,228 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526775,526788] [2021-11-23 02:14:17,229 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526924,526937] [2021-11-23 02:14:17,229 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527072,527085] [2021-11-23 02:14:17,230 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527229,527242] [2021-11-23 02:14:17,230 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527378,527391] [2021-11-23 02:14:17,231 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527534,527547] [2021-11-23 02:14:17,231 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527687,527700] [2021-11-23 02:14:17,232 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527833,527846] [2021-11-23 02:14:17,232 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527976,527989] [2021-11-23 02:14:17,233 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528128,528141] [2021-11-23 02:14:17,233 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528274,528287] [2021-11-23 02:14:17,234 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528419,528432] [2021-11-23 02:14:17,234 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528573,528586] [2021-11-23 02:14:17,235 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528724,528737] [2021-11-23 02:14:17,235 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528879,528892] [2021-11-23 02:14:17,236 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529031,529044] [2021-11-23 02:14:17,236 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529186,529199] [2021-11-23 02:14:17,237 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529350,529363] [2021-11-23 02:14:17,237 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529506,529519] [2021-11-23 02:14:17,238 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529670,529683] [2021-11-23 02:14:17,238 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529812,529825] [2021-11-23 02:14:17,239 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529970,529983] [2021-11-23 02:14:17,239 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530137,530150] [2021-11-23 02:14:17,240 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530296,530309] [2021-11-23 02:14:17,240 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530455,530468] [2021-11-23 02:14:17,240 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530604,530617] [2021-11-23 02:14:17,241 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530751,530764] [2021-11-23 02:14:17,241 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530890,530903] [2021-11-23 02:14:17,243 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531053,531066] [2021-11-23 02:14:17,244 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531219,531232] [2021-11-23 02:14:17,244 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531383,531396] [2021-11-23 02:14:17,245 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531548,531561] [2021-11-23 02:14:17,245 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531713,531726] [2021-11-23 02:14:17,246 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531879,531892] [2021-11-23 02:14:17,246 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532044,532057] [2021-11-23 02:14:17,247 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532211,532224] [2021-11-23 02:14:17,247 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532371,532384] [2021-11-23 02:14:17,248 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532533,532546] [2021-11-23 02:14:17,248 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532692,532705] [2021-11-23 02:14:17,249 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532838,532851] [2021-11-23 02:14:17,249 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532981,532994] [2021-11-23 02:14:17,250 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533125,533138] [2021-11-23 02:14:17,250 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533268,533281] [2021-11-23 02:14:17,251 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533412,533425] [2021-11-23 02:14:17,251 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533553,533566] [2021-11-23 02:14:17,251 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533691,533704] [2021-11-23 02:14:17,252 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533849,533862] [2021-11-23 02:14:17,252 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534008,534021] [2021-11-23 02:14:17,253 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534164,534177] [2021-11-23 02:14:17,253 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534313,534326] [2021-11-23 02:14:17,254 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534465,534478] [2021-11-23 02:14:17,254 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534616,534629] [2021-11-23 02:14:17,255 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534765,534778] [2021-11-23 02:14:17,255 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534917,534930] [2021-11-23 02:14:17,256 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535065,535078] [2021-11-23 02:14:17,256 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535218,535231] [2021-11-23 02:14:17,257 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535369,535382] [2021-11-23 02:14:17,257 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535519,535532] [2021-11-23 02:14:17,258 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535666,535679] [2021-11-23 02:14:17,258 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535817,535830] [2021-11-23 02:14:17,259 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535968,535981] [2021-11-23 02:14:17,259 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536116,536129] [2021-11-23 02:14:17,259 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536282,536295] [2021-11-23 02:14:17,260 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536451,536464] [2021-11-23 02:14:17,260 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536618,536631] [2021-11-23 02:14:17,261 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536786,536799] [2021-11-23 02:14:17,261 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536936,536949] [2021-11-23 02:14:17,262 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[537083,537096] [2021-11-23 02:14:17,262 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[537244,537257] [2021-11-23 02:14:17,263 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[537414,537427] [2021-11-23 02:14:17,263 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[537576,537589] [2021-11-23 02:14:17,291 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:14:17,393 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:14:17,982 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524188,524201] [2021-11-23 02:14:17,983 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524333,524346] [2021-11-23 02:14:17,983 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524479,524492] [2021-11-23 02:14:17,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524644,524657] [2021-11-23 02:14:17,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524802,524815] [2021-11-23 02:14:17,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524960,524973] [2021-11-23 02:14:17,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525118,525131] [2021-11-23 02:14:17,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525278,525291] [2021-11-23 02:14:17,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525437,525450] [2021-11-23 02:14:17,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525576,525589] [2021-11-23 02:14:17,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525718,525731] [2021-11-23 02:14:17,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525867,525880] [2021-11-23 02:14:17,989 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526006,526019] [2021-11-23 02:14:17,989 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526161,526174] [2021-11-23 02:14:17,989 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526321,526334] [2021-11-23 02:14:17,990 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526472,526485] [2021-11-23 02:14:17,990 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526623,526636] [2021-11-23 02:14:17,991 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526775,526788] [2021-11-23 02:14:17,991 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526924,526937] [2021-11-23 02:14:17,991 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527072,527085] [2021-11-23 02:14:17,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527229,527242] [2021-11-23 02:14:17,993 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527378,527391] [2021-11-23 02:14:17,993 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527534,527547] [2021-11-23 02:14:17,994 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527687,527700] [2021-11-23 02:14:17,994 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527833,527846] [2021-11-23 02:14:17,994 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527976,527989] [2021-11-23 02:14:17,995 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528128,528141] [2021-11-23 02:14:17,996 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528274,528287] [2021-11-23 02:14:17,996 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528419,528432] [2021-11-23 02:14:17,996 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528573,528586] [2021-11-23 02:14:18,001 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528724,528737] [2021-11-23 02:14:18,002 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528879,528892] [2021-11-23 02:14:18,003 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529031,529044] [2021-11-23 02:14:18,003 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529186,529199] [2021-11-23 02:14:18,004 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529350,529363] [2021-11-23 02:14:18,004 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529506,529519] [2021-11-23 02:14:18,005 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529670,529683] [2021-11-23 02:14:18,006 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529812,529825] [2021-11-23 02:14:18,006 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529970,529983] [2021-11-23 02:14:18,007 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530137,530150] [2021-11-23 02:14:18,008 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530296,530309] [2021-11-23 02:14:18,008 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530455,530468] [2021-11-23 02:14:18,009 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530604,530617] [2021-11-23 02:14:18,009 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530751,530764] [2021-11-23 02:14:18,010 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530890,530903] [2021-11-23 02:14:18,010 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531053,531066] [2021-11-23 02:14:18,010 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531219,531232] [2021-11-23 02:14:18,011 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531383,531396] [2021-11-23 02:14:18,011 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531548,531561] [2021-11-23 02:14:18,012 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531713,531726] [2021-11-23 02:14:18,014 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531879,531892] [2021-11-23 02:14:18,014 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532044,532057] [2021-11-23 02:14:18,014 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532211,532224] [2021-11-23 02:14:18,015 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532371,532384] [2021-11-23 02:14:18,016 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532533,532546] [2021-11-23 02:14:18,017 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532692,532705] [2021-11-23 02:14:18,020 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532838,532851] [2021-11-23 02:14:18,021 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532981,532994] [2021-11-23 02:14:18,022 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533125,533138] [2021-11-23 02:14:18,022 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533268,533281] [2021-11-23 02:14:18,024 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533412,533425] [2021-11-23 02:14:18,025 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533553,533566] [2021-11-23 02:14:18,026 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533691,533704] [2021-11-23 02:14:18,031 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533849,533862] [2021-11-23 02:14:18,031 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534008,534021] [2021-11-23 02:14:18,035 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534164,534177] [2021-11-23 02:14:18,036 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534313,534326] [2021-11-23 02:14:18,036 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534465,534478] [2021-11-23 02:14:18,037 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534616,534629] [2021-11-23 02:14:18,037 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534765,534778] [2021-11-23 02:14:18,037 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534917,534930] [2021-11-23 02:14:18,038 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535065,535078] [2021-11-23 02:14:18,038 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535218,535231] [2021-11-23 02:14:18,038 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535369,535382] [2021-11-23 02:14:18,039 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535519,535532] [2021-11-23 02:14:18,039 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535666,535679] [2021-11-23 02:14:18,039 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535817,535830] [2021-11-23 02:14:18,040 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535968,535981] [2021-11-23 02:14:18,041 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536116,536129] [2021-11-23 02:14:18,042 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536282,536295] [2021-11-23 02:14:18,042 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536451,536464] [2021-11-23 02:14:18,043 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536618,536631] [2021-11-23 02:14:18,044 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536786,536799] [2021-11-23 02:14:18,044 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536936,536949] [2021-11-23 02:14:18,044 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[537083,537096] [2021-11-23 02:14:18,045 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[537244,537257] [2021-11-23 02:14:18,045 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[537414,537427] [2021-11-23 02:14:18,046 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_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[537576,537589] [2021-11-23 02:14:18,052 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:14:18,590 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:14:18,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:18 WrapperNode [2021-11-23 02:14:18,591 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:14:18,592 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:14:18,592 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:14:18,592 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:14:18,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:18" (1/1) ... [2021-11-23 02:14:18,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:18" (1/1) ... [2021-11-23 02:14:19,074 INFO L137 Inliner]: procedures = 877, calls = 4554, calls flagged for inlining = 420, calls inlined = 325, statements flattened = 8143 [2021-11-23 02:14:19,075 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:14:19,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:14:19,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:14:19,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:14:19,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:18" (1/1) ... [2021-11-23 02:14:19,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:18" (1/1) ... [2021-11-23 02:14:19,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:18" (1/1) ... [2021-11-23 02:14:19,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:18" (1/1) ... [2021-11-23 02:14:19,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:18" (1/1) ... [2021-11-23 02:14:19,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:18" (1/1) ... [2021-11-23 02:14:19,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:18" (1/1) ... [2021-11-23 02:14:19,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:14:19,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:14:19,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:14:19,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:14:19,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:18" (1/1) ... [2021-11-23 02:14:19,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:14:19,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:14:19,494 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:14:19,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:14:19,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_122 [2021-11-23 02:14:19,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_122 [2021-11-23 02:14:19,549 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_txbuf [2021-11-23 02:14:19,549 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_txbuf [2021-11-23 02:14:19,549 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2021-11-23 02:14:19,549 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2021-11-23 02:14:19,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-23 02:14:19,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-23 02:14:19,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_142 [2021-11-23 02:14:19,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_142 [2021-11-23 02:14:19,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-23 02:14:19,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-23 02:14:19,551 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_reg [2021-11-23 02:14:19,551 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_reg [2021-11-23 02:14:19,552 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-23 02:14:19,552 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-23 02:14:19,552 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-23 02:14:19,552 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-23 02:14:19,552 INFO L130 BoogieDeclarations]: Found specification of procedure alx_pci_error_resume [2021-11-23 02:14:19,552 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_pci_error_resume [2021-11-23 02:14:19,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_net_rtnetlink__double_lock [2021-11-23 02:14:19,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_net_rtnetlink__double_lock [2021-11-23 02:14:19,552 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem16 [2021-11-23 02:14:19,553 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem16 [2021-11-23 02:14:19,553 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-23 02:14:19,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-23 02:14:19,553 INFO L130 BoogieDeclarations]: Found specification of procedure alx_activate [2021-11-23 02:14:19,553 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_activate [2021-11-23 02:14:19,553 INFO L130 BoogieDeclarations]: Found specification of procedure alx_remove [2021-11-23 02:14:19,553 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_remove [2021-11-23 02:14:19,553 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_msi [2021-11-23 02:14:19,553 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_msi [2021-11-23 02:14:19,554 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-23 02:14:19,554 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-23 02:14:19,554 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_reg [2021-11-23 02:14:19,554 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_reg [2021-11-23 02:14:19,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-23 02:14:19,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-23 02:14:19,554 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-23 02:14:19,554 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-23 02:14:19,554 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-23 02:14:19,555 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-23 02:14:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure alx_resume [2021-11-23 02:14:19,555 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_resume [2021-11-23 02:14:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_link_check [2021-11-23 02:14:19,555 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_link_check [2021-11-23 02:14:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 02:14:19,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 02:14:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-23 02:14:19,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-23 02:14:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:14:19,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-23 02:14:19,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-23 02:14:19,556 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_open [2021-11-23 02:14:19,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_open [2021-11-23 02:14:19,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-23 02:14:19,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-23 02:14:19,557 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem32 [2021-11-23 02:14:19,557 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem32 [2021-11-23 02:14:19,557 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-23 02:14:19,557 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-23 02:14:19,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-23 02:14:19,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-23 02:14:19,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_check_return_value_probe [2021-11-23 02:14:19,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_check_return_value_probe [2021-11-23 02:14:19,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:14:19,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-23 02:14:19,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-23 02:14:19,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_check_return_value_probe [2021-11-23 02:14:19,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_check_return_value_probe [2021-11-23 02:14:19,562 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2021-11-23 02:14:19,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2021-11-23 02:14:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure alx_netif_stop [2021-11-23 02:14:19,563 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_netif_stop [2021-11-23 02:14:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:14:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 02:14:19,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 02:14:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-23 02:14:19,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-23 02:14:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:14:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 02:14:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_pcie [2021-11-23 02:14:19,566 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_pcie [2021-11-23 02:14:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_reset [2021-11-23 02:14:19,566 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_reset [2021-11-23 02:14:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_legacy [2021-11-23 02:14:19,566 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_legacy [2021-11-23 02:14:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure alx_refill_rx_ring [2021-11-23 02:14:19,566 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_refill_rx_ring [2021-11-23 02:14:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-23 02:14:19,567 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-23 02:14:19,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_irq_lock_of_alx_priv [2021-11-23 02:14:19,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_irq_lock_of_alx_priv [2021-11-23 02:14:19,567 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_macaddr [2021-11-23 02:14:19,567 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_macaddr [2021-11-23 02:14:19,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-23 02:14:19,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-23 02:14:19,567 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2021-11-23 02:14:19,567 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2021-11-23 02:14:19,567 INFO L130 BoogieDeclarations]: Found specification of procedure alx_speed_to_ethadv [2021-11-23 02:14:19,568 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_speed_to_ethadv [2021-11-23 02:14:19,568 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-23 02:14:19,568 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-23 02:14:19,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:14:19,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:14:19,568 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2021-11-23 02:14:19,568 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2021-11-23 02:14:19,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:14:19,568 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-23 02:14:19,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-23 02:14:19,569 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-23 02:14:19,569 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-23 02:14:19,569 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-23 02:14:19,569 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_with_cr [2021-11-23 02:14:19,569 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_with_cr [2021-11-23 02:14:19,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-23 02:14:19,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-23 02:14:19,569 INFO L130 BoogieDeclarations]: Found specification of procedure alx_get_supported_speeds [2021-11-23 02:14:19,570 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_get_supported_speeds [2021-11-23 02:14:19,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 02:14:19,570 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 02:14:19,570 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_macaddr [2021-11-23 02:14:19,570 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_macaddr [2021-11-23 02:14:19,570 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_mem32 [2021-11-23 02:14:19,571 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_mem32 [2021-11-23 02:14:19,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-23 02:14:19,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-23 02:14:19,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-23 02:14:19,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-23 02:14:19,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_128 [2021-11-23 02:14:19,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_128 [2021-11-23 02:14:19,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-23 02:14:19,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-23 02:14:19,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-23 02:14:19,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-23 02:14:19,572 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-23 02:14:19,572 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-23 02:14:19,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:14:19,572 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 02:14:19,572 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 02:14:19,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-23 02:14:19,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-23 02:14:19,572 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_buffers [2021-11-23 02:14:19,572 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_buffers [2021-11-23 02:14:19,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:14:19,573 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_handle [2021-11-23 02:14:19,573 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_handle [2021-11-23 02:14:19,573 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-23 02:14:19,573 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-23 02:14:19,573 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-23 02:14:19,573 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-23 02:14:19,573 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-23 02:14:19,573 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-23 02:14:19,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-23 02:14:19,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-23 02:14:19,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-23 02:14:19,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-23 02:14:19,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-23 02:14:19,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-23 02:14:19,574 INFO L130 BoogieDeclarations]: Found specification of procedure alx_is_rev_a [2021-11-23 02:14:19,574 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_is_rev_a [2021-11-23 02:14:19,574 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-23 02:14:19,574 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-23 02:14:19,574 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_core [2021-11-23 02:14:19,575 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_core [2021-11-23 02:14:19,575 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_ext [2021-11-23 02:14:19,575 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_ext [2021-11-23 02:14:19,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:14:19,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 02:14:19,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 02:14:19,575 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_phy_link [2021-11-23 02:14:19,575 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_phy_link [2021-11-23 02:14:19,575 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_stop [2021-11-23 02:14:19,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_stop [2021-11-23 02:14:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_rx_mode [2021-11-23 02:14:19,576 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_rx_mode [2021-11-23 02:14:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-23 02:14:19,576 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-23 02:14:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_121 [2021-11-23 02:14:19,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_121 [2021-11-23 02:14:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure alx_configure [2021-11-23 02:14:19,576 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_configure [2021-11-23 02:14:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_past_rtnl_unlock [2021-11-23 02:14:19,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_past_rtnl_unlock [2021-11-23 02:14:19,577 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-23 02:14:19,577 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-23 02:14:19,577 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_mac [2021-11-23 02:14:19,577 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_mac [2021-11-23 02:14:19,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_141 [2021-11-23 02:14:19,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_141 [2021-11-23 02:14:19,577 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2021-11-23 02:14:19,577 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2021-11-23 02:14:19,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-23 02:14:19,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-23 02:14:19,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 02:14:19,578 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 02:14:19,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 02:14:19,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 02:14:19,578 INFO L130 BoogieDeclarations]: Found specification of procedure alx_halt [2021-11-23 02:14:19,578 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_halt [2021-11-23 02:14:19,578 INFO L130 BoogieDeclarations]: Found specification of procedure alx_suspend [2021-11-23 02:14:19,578 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_suspend [2021-11-23 02:14:19,579 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_read_phy_reg [2021-11-23 02:14:19,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_read_phy_reg [2021-11-23 02:14:19,580 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-23 02:14:19,580 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-23 02:14:19,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-23 02:14:19,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-23 02:14:19,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-23 02:14:19,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-23 02:14:19,580 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tx_timeout [2021-11-23 02:14:19,580 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tx_timeout [2021-11-23 02:14:19,580 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_enable [2021-11-23 02:14:19,581 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_enable [2021-11-23 02:14:19,581 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 02:14:19,581 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 02:14:19,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_past_rtnl_lock [2021-11-23 02:14:19,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_past_rtnl_lock [2021-11-23 02:14:19,581 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_disable [2021-11-23 02:14:19,581 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_disable [2021-11-23 02:14:19,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 02:14:19,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 02:14:19,581 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-23 02:14:19,582 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-23 02:14:19,582 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-23 02:14:19,582 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-23 02:14:19,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 02:14:19,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 02:14:19,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-23 02:14:19,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-23 02:14:19,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_irq_lock_of_alx_priv [2021-11-23 02:14:19,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_irq_lock_of_alx_priv [2021-11-23 02:14:19,582 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-23 02:14:19,582 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-23 02:14:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:14:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_write [2021-11-23 02:14:19,583 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_write [2021-11-23 02:14:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-23 02:14:19,583 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-23 02:14:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2021-11-23 02:14:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_ext [2021-11-23 02:14:19,583 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_ext [2021-11-23 02:14:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-23 02:14:19,583 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-23 02:14:19,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:14:19,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_rtnl_is_locked [2021-11-23 02:14:19,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_rtnl_is_locked [2021-11-23 02:14:19,584 INFO L130 BoogieDeclarations]: Found specification of procedure ethadv_to_hw_cfg [2021-11-23 02:14:19,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ethadv_to_hw_cfg [2021-11-23 02:14:19,584 INFO L130 BoogieDeclarations]: Found specification of procedure alx_stop [2021-11-23 02:14:19,584 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_stop [2021-11-23 02:14:19,584 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-23 02:14:19,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-23 02:14:19,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:14:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-23 02:14:19,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-23 02:14:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-23 02:14:19,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-23 02:14:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-23 02:14:19,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-23 02:14:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 02:14:19,585 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 02:14:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-23 02:14:19,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-23 02:14:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-23 02:14:19,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-23 02:14:19,586 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_core [2021-11-23 02:14:19,586 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_core [2021-11-23 02:14:19,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 02:14:19,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 02:14:19,586 INFO L130 BoogieDeclarations]: Found specification of procedure alx_update_hw_stats [2021-11-23 02:14:19,586 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_update_hw_stats [2021-11-23 02:14:19,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_1 [2021-11-23 02:14:19,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_1 [2021-11-23 02:14:19,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-23 02:14:19,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-23 02:14:19,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_0 [2021-11-23 02:14:19,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_0 [2021-11-23 02:14:19,587 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_dbg [2021-11-23 02:14:19,587 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_dbg [2021-11-23 02:14:19,587 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-23 02:14:19,587 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-23 02:14:19,587 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-23 02:14:19,587 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-23 02:14:19,587 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_giga [2021-11-23 02:14:19,587 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_giga [2021-11-23 02:14:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure alx_poll_controller [2021-11-23 02:14:19,588 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_poll_controller [2021-11-23 02:14:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:14:19,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:14:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:14:19,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:14:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_dbg [2021-11-23 02:14:19,588 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_dbg [2021-11-23 02:14:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-23 02:14:19,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-23 02:14:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-23 02:14:19,589 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-23 02:14:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-23 02:14:19,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-23 02:14:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_rings [2021-11-23 02:14:19,589 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_rings [2021-11-23 02:14:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-23 02:14:19,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-23 02:14:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:14:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 02:14:19,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 02:14:19,590 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-11-23 02:14:19,590 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-11-23 02:14:19,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-23 02:14:19,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-23 02:14:19,590 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-23 02:14:19,590 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-23 02:14:19,590 INFO L130 BoogieDeclarations]: Found specification of procedure alx_open [2021-11-23 02:14:19,590 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_open [2021-11-23 02:14:19,590 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-23 02:14:19,590 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-23 02:14:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-23 02:14:19,591 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-23 02:14:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2021-11-23 02:14:19,591 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2021-11-23 02:14:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-23 02:14:19,591 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-23 02:14:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-23 02:14:19,591 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-23 02:14:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-23 02:14:19,591 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-23 02:14:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit_rings [2021-11-23 02:14:19,592 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit_rings [2021-11-23 02:14:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_reg [2021-11-23 02:14:19,592 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_reg [2021-11-23 02:14:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-23 02:14:19,592 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-23 02:14:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-23 02:14:19,592 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-23 02:14:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:14:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_mdio_idle [2021-11-23 02:14:19,593 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_mdio_idle [2021-11-23 02:14:19,593 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-23 02:14:19,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-23 02:14:19,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-23 02:14:19,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-23 02:14:19,593 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-23 02:14:19,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-23 02:14:19,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-23 02:14:19,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-23 02:14:19,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-23 02:14:19,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-23 02:14:19,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 02:14:19,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 02:14:19,594 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-23 02:14:19,594 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-23 02:14:19,594 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-23 02:14:19,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-23 02:14:19,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-23 02:14:19,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-23 02:14:19,594 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 02:14:19,594 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 02:14:19,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-23 02:14:19,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-23 02:14:19,595 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2021-11-23 02:14:19,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2021-11-23 02:14:19,595 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-23 02:14:19,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-23 02:14:19,595 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit [2021-11-23 02:14:19,595 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit [2021-11-23 02:14:19,595 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tpd_avail [2021-11-23 02:14:19,595 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tpd_avail [2021-11-23 02:14:19,595 INFO L130 BoogieDeclarations]: Found specification of procedure alx_setup_speed_duplex [2021-11-23 02:14:19,596 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_setup_speed_duplex [2021-11-23 02:14:19,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-23 02:14:19,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-23 02:14:19,596 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-23 02:14:19,596 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-23 02:14:19,596 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-23 02:14:19,596 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-23 02:14:19,596 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-23 02:14:19,596 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-23 02:14:19,596 INFO L130 BoogieDeclarations]: Found specification of procedure alx_enable_aspm [2021-11-23 02:14:19,597 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_enable_aspm [2021-11-23 02:14:19,597 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_revision [2021-11-23 02:14:19,597 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_revision [2021-11-23 02:14:19,597 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_set_rx_mode [2021-11-23 02:14:19,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_set_rx_mode [2021-11-23 02:14:19,597 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_write_phy_reg [2021-11-23 02:14:19,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_write_phy_reg [2021-11-23 02:14:19,597 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-23 02:14:19,597 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-23 02:14:19,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 02:14:19,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 02:14:19,598 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-23 02:14:19,598 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-23 02:14:19,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-23 02:14:19,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-23 02:14:19,598 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-11-23 02:14:19,598 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-11-23 02:14:19,598 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_phy [2021-11-23 02:14:19,598 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_phy [2021-11-23 02:14:19,598 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-23 02:14:19,598 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-23 02:14:19,599 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-23 02:14:19,599 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-23 02:14:19,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:14:19,599 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le64 [2021-11-23 02:14:19,599 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le64 [2021-11-23 02:14:20,854 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:14:20,866 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:14:20,985 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 02:14:31,036 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:14:32,722 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:14:32,722 INFO L301 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-23 02:14:32,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:14:32 BoogieIcfgContainer [2021-11-23 02:14:32,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:14:32,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:14:32,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:14:32,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:14:32,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:14:10" (1/3) ... [2021-11-23 02:14:32,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f886055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:14:32, skipping insertion in model container [2021-11-23 02:14:32,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:18" (2/3) ... [2021-11-23 02:14:32,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f886055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:14:32, skipping insertion in model container [2021-11-23 02:14:32,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:14:32" (3/3) ... [2021-11-23 02:14:32,736 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i [2021-11-23 02:14:32,741 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:14:32,741 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2021-11-23 02:14:32,801 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:14:32,807 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 [2021-11-23 02:14:32,807 INFO L340 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2021-11-23 02:14:32,876 INFO L276 IsEmpty]: Start isEmpty. Operand has 2368 states, 1301 states have (on average 1.2521137586471944) internal successors, (1629), 1389 states have internal predecessors, (1629), 847 states have call successors, (847), 193 states have call predecessors, (847), 192 states have return successors, (840), 824 states have call predecessors, (840), 840 states have call successors, (840) [2021-11-23 02:14:32,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 02:14:32,882 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:14:32,883 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-23 02:14:32,883 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_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 02:14:32,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:14:32,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1290487985, now seen corresponding path program 1 times [2021-11-23 02:14:32,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:14:32,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670657070] [2021-11-23 02:14:32,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:14:32,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:14:33,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:14:33,617 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:14:33,617 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:14:33,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670657070] [2021-11-23 02:14:33,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670657070] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:14:33,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:14:33,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:14:33,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631649156] [2021-11-23 02:14:33,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:14:33,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:14:33,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:14:33,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:14:33,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:14:33,662 INFO L87 Difference]: Start difference. First operand has 2368 states, 1301 states have (on average 1.2521137586471944) internal successors, (1629), 1389 states have internal predecessors, (1629), 847 states have call successors, (847), 193 states have call predecessors, (847), 192 states have return successors, (840), 824 states have call predecessors, (840), 840 states have call successors, (840) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-23 02:14:36,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:39,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:14:39,956 INFO L93 Difference]: Finished difference Result 6466 states and 9409 transitions. [2021-11-23 02:14:39,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:14:39,959 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 47 [2021-11-23 02:14:39,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:14:40,019 INFO L225 Difference]: With dead ends: 6466 [2021-11-23 02:14:40,019 INFO L226 Difference]: Without dead ends: 4094 [2021-11-23 02:14:40,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:14:40,058 INFO L933 BasicCegarLoop]: 3527 mSDtfsCounter, 2407 mSDsluCounter, 7116 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2409 SdHoareTripleChecker+Valid, 9898 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:14:40,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2409 Valid, 9898 Invalid, 1137 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1135 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2021-11-23 02:14:40,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4094 states. [2021-11-23 02:14:40,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4094 to 3916. [2021-11-23 02:14:40,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3916 states, 2142 states have (on average 1.2189542483660132) internal successors, (2611), 2260 states have internal predecessors, (2611), 1403 states have call successors, (1403), 343 states have call predecessors, (1403), 341 states have return successors, (1403), 1374 states have call predecessors, (1403), 1401 states have call successors, (1403) [2021-11-23 02:14:40,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3916 states to 3916 states and 5417 transitions. [2021-11-23 02:14:40,638 INFO L78 Accepts]: Start accepts. Automaton has 3916 states and 5417 transitions. Word has length 47 [2021-11-23 02:14:40,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:14:40,640 INFO L470 AbstractCegarLoop]: Abstraction has 3916 states and 5417 transitions. [2021-11-23 02:14:40,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-23 02:14:40,641 INFO L276 IsEmpty]: Start isEmpty. Operand 3916 states and 5417 transitions. [2021-11-23 02:14:40,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-23 02:14:40,645 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:14:40,645 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-23 02:14:40,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:14:40,646 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_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 02:14:40,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:14:40,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1470152580, now seen corresponding path program 1 times [2021-11-23 02:14:40,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:14:40,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628172654] [2021-11-23 02:14:40,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:14:40,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:14:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:14:41,135 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:14:41,136 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:14:41,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628172654] [2021-11-23 02:14:41,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628172654] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:14:41,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:14:41,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:14:41,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487158813] [2021-11-23 02:14:41,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:14:41,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:14:41,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:14:41,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:14:41,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:14:41,140 INFO L87 Difference]: Start difference. First operand 3916 states and 5417 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-23 02:14:43,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:47,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:14:47,384 INFO L93 Difference]: Finished difference Result 5697 states and 7819 transitions. [2021-11-23 02:14:47,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:14:47,385 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 52 [2021-11-23 02:14:47,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:14:47,437 INFO L225 Difference]: With dead ends: 5697 [2021-11-23 02:14:47,437 INFO L226 Difference]: Without dead ends: 5695 [2021-11-23 02:14:47,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:14:47,446 INFO L933 BasicCegarLoop]: 3511 mSDtfsCounter, 2407 mSDsluCounter, 7076 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2409 SdHoareTripleChecker+Valid, 9842 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:14:47,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2409 Valid, 9842 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1128 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2021-11-23 02:14:47,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5695 states. [2021-11-23 02:14:47,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5695 to 5528. [2021-11-23 02:14:47,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5528 states, 3018 states have (on average 1.2173624917163686) internal successors, (3674), 3175 states have internal predecessors, (3674), 1985 states have call successors, (1985), 497 states have call predecessors, (1985), 495 states have return successors, (1985), 1943 states have call predecessors, (1985), 1983 states have call successors, (1985) [2021-11-23 02:14:47,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5528 states to 5528 states and 7644 transitions. [2021-11-23 02:14:47,943 INFO L78 Accepts]: Start accepts. Automaton has 5528 states and 7644 transitions. Word has length 52 [2021-11-23 02:14:47,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:14:47,944 INFO L470 AbstractCegarLoop]: Abstraction has 5528 states and 7644 transitions. [2021-11-23 02:14:47,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-23 02:14:47,945 INFO L276 IsEmpty]: Start isEmpty. Operand 5528 states and 7644 transitions. [2021-11-23 02:14:47,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-23 02:14:47,954 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:14:47,954 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-23 02:14:47,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:14:47,955 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_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 02:14:47,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:14:47,956 INFO L85 PathProgramCache]: Analyzing trace with hash 306637433, now seen corresponding path program 1 times [2021-11-23 02:14:47,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:14:47,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526157125] [2021-11-23 02:14:47,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:14:47,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:14:48,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:14:48,360 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:14:48,360 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:14:48,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526157125] [2021-11-23 02:14:48,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526157125] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:14:48,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:14:48,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:14:48,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953205943] [2021-11-23 02:14:48,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:14:48,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:14:48,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:14:48,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:14:48,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:14:48,364 INFO L87 Difference]: Start difference. First operand 5528 states and 7644 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-23 02:14:50,959 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:55,623 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:55,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:14:55,895 INFO L93 Difference]: Finished difference Result 5695 states and 7817 transitions. [2021-11-23 02:14:55,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:14:55,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 57 [2021-11-23 02:14:55,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:14:55,948 INFO L225 Difference]: With dead ends: 5695 [2021-11-23 02:14:55,948 INFO L226 Difference]: Without dead ends: 5693 [2021-11-23 02:14:55,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:14:55,956 INFO L933 BasicCegarLoop]: 3511 mSDtfsCounter, 2404 mSDsluCounter, 7076 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2406 SdHoareTripleChecker+Valid, 9842 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:14:55,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2406 Valid, 9842 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1127 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2021-11-23 02:14:55,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5693 states. [2021-11-23 02:14:56,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5693 to 5534. [2021-11-23 02:14:56,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5534 states, 3021 states have (on average 1.217146640185369) internal successors, (3677), 3178 states have internal predecessors, (3677), 1987 states have call successors, (1987), 498 states have call predecessors, (1987), 496 states have return successors, (1987), 1945 states have call predecessors, (1987), 1985 states have call successors, (1987) [2021-11-23 02:14:56,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5534 states to 5534 states and 7651 transitions. [2021-11-23 02:14:56,430 INFO L78 Accepts]: Start accepts. Automaton has 5534 states and 7651 transitions. Word has length 57 [2021-11-23 02:14:56,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:14:56,431 INFO L470 AbstractCegarLoop]: Abstraction has 5534 states and 7651 transitions. [2021-11-23 02:14:56,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-23 02:14:56,432 INFO L276 IsEmpty]: Start isEmpty. Operand 5534 states and 7651 transitions. [2021-11-23 02:14:56,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-23 02:14:56,433 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:14:56,433 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-23 02:14:56,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:14:56,434 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_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 02:14:56,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:14:56,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1634717069, now seen corresponding path program 1 times [2021-11-23 02:14:56,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:14:56,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837901217] [2021-11-23 02:14:56,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:14:56,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:14:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:14:56,818 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:14:56,818 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:14:56,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837901217] [2021-11-23 02:14:56,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837901217] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:14:56,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:14:56,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:14:56,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569369847] [2021-11-23 02:14:56,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:14:56,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:14:56,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:14:56,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:14:56,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:14:56,821 INFO L87 Difference]: Start difference. First operand 5534 states and 7651 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-23 02:14:59,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:03,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:05,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:05,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:15:05,752 INFO L93 Difference]: Finished difference Result 5693 states and 7815 transitions. [2021-11-23 02:15:05,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:15:05,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 62 [2021-11-23 02:15:05,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:15:05,799 INFO L225 Difference]: With dead ends: 5693 [2021-11-23 02:15:05,799 INFO L226 Difference]: Without dead ends: 5691 [2021-11-23 02:15:05,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:15:05,808 INFO L933 BasicCegarLoop]: 3511 mSDtfsCounter, 2401 mSDsluCounter, 7076 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2403 SdHoareTripleChecker+Valid, 9842 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:15:05,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2403 Valid, 9842 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1127 Invalid, 2 Unknown, 0 Unchecked, 8.6s Time] [2021-11-23 02:15:05,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5691 states. [2021-11-23 02:15:06,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5691 to 5540. [2021-11-23 02:15:06,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5540 states, 3024 states have (on average 1.216931216931217) internal successors, (3680), 3181 states have internal predecessors, (3680), 1989 states have call successors, (1989), 499 states have call predecessors, (1989), 497 states have return successors, (1989), 1947 states have call predecessors, (1989), 1987 states have call successors, (1989) [2021-11-23 02:15:06,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5540 states to 5540 states and 7658 transitions. [2021-11-23 02:15:06,287 INFO L78 Accepts]: Start accepts. Automaton has 5540 states and 7658 transitions. Word has length 62 [2021-11-23 02:15:06,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:15:06,288 INFO L470 AbstractCegarLoop]: Abstraction has 5540 states and 7658 transitions. [2021-11-23 02:15:06,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-23 02:15:06,289 INFO L276 IsEmpty]: Start isEmpty. Operand 5540 states and 7658 transitions. [2021-11-23 02:15:06,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-23 02:15:06,292 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:15:06,292 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-23 02:15:06,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:15:06,293 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_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 02:15:06,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:15:06,293 INFO L85 PathProgramCache]: Analyzing trace with hash -369807573, now seen corresponding path program 1 times [2021-11-23 02:15:06,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:15:06,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858978880] [2021-11-23 02:15:06,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:06,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:15:06,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:06,634 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:15:06,634 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:15:06,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858978880] [2021-11-23 02:15:06,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858978880] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:15:06,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:15:06,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:15:06,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119110795] [2021-11-23 02:15:06,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:15:06,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:15:06,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:15:06,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:15:06,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:15:06,638 INFO L87 Difference]: Start difference. First operand 5540 states and 7658 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-23 02:15:09,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:13,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:14,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:15:14,305 INFO L93 Difference]: Finished difference Result 5691 states and 7813 transitions. [2021-11-23 02:15:14,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:15:14,305 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 67 [2021-11-23 02:15:14,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:15:14,355 INFO L225 Difference]: With dead ends: 5691 [2021-11-23 02:15:14,355 INFO L226 Difference]: Without dead ends: 5689 [2021-11-23 02:15:14,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:15:14,361 INFO L933 BasicCegarLoop]: 3511 mSDtfsCounter, 2398 mSDsluCounter, 7076 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2400 SdHoareTripleChecker+Valid, 9842 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:15:14,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2400 Valid, 9842 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1128 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2021-11-23 02:15:14,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5689 states. [2021-11-23 02:15:14,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5689 to 5546. [2021-11-23 02:15:14,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5546 states, 3027 states have (on average 1.2167162206805417) internal successors, (3683), 3184 states have internal predecessors, (3683), 1991 states have call successors, (1991), 500 states have call predecessors, (1991), 498 states have return successors, (1991), 1949 states have call predecessors, (1991), 1989 states have call successors, (1991) [2021-11-23 02:15:14,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5546 states to 5546 states and 7665 transitions. [2021-11-23 02:15:14,832 INFO L78 Accepts]: Start accepts. Automaton has 5546 states and 7665 transitions. Word has length 67 [2021-11-23 02:15:14,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:15:14,834 INFO L470 AbstractCegarLoop]: Abstraction has 5546 states and 7665 transitions. [2021-11-23 02:15:14,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-23 02:15:14,835 INFO L276 IsEmpty]: Start isEmpty. Operand 5546 states and 7665 transitions. [2021-11-23 02:15:14,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-23 02:15:14,836 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:15:14,836 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-23 02:15:14,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:15:14,837 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_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 02:15:14,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:15:14,838 INFO L85 PathProgramCache]: Analyzing trace with hash 580662307, now seen corresponding path program 1 times [2021-11-23 02:15:14,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:15:14,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558407913] [2021-11-23 02:15:14,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:14,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:15:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:15,169 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:15:15,169 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:15:15,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558407913] [2021-11-23 02:15:15,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558407913] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:15:15,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:15:15,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:15:15,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412634263] [2021-11-23 02:15:15,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:15:15,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:15:15,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:15:15,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:15:15,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:15:15,172 INFO L87 Difference]: Start difference. First operand 5546 states and 7665 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 02:15:17,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:21,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:15:21,313 INFO L93 Difference]: Finished difference Result 5689 states and 7811 transitions. [2021-11-23 02:15:21,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:15:21,314 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2021-11-23 02:15:21,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:15:21,350 INFO L225 Difference]: With dead ends: 5689 [2021-11-23 02:15:21,351 INFO L226 Difference]: Without dead ends: 5687 [2021-11-23 02:15:21,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:15:21,356 INFO L933 BasicCegarLoop]: 3511 mSDtfsCounter, 2395 mSDsluCounter, 7076 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2397 SdHoareTripleChecker+Valid, 9842 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:15:21,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2397 Valid, 9842 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1128 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2021-11-23 02:15:21,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5687 states. [2021-11-23 02:15:21,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5687 to 5552. [2021-11-23 02:15:21,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5552 states, 3030 states have (on average 1.2165016501650165) internal successors, (3686), 3187 states have internal predecessors, (3686), 1993 states have call successors, (1993), 501 states have call predecessors, (1993), 499 states have return successors, (1993), 1951 states have call predecessors, (1993), 1991 states have call successors, (1993) [2021-11-23 02:15:21,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5552 states to 5552 states and 7672 transitions. [2021-11-23 02:15:21,695 INFO L78 Accepts]: Start accepts. Automaton has 5552 states and 7672 transitions. Word has length 72 [2021-11-23 02:15:21,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:15:21,696 INFO L470 AbstractCegarLoop]: Abstraction has 5552 states and 7672 transitions. [2021-11-23 02:15:21,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 02:15:21,696 INFO L276 IsEmpty]: Start isEmpty. Operand 5552 states and 7672 transitions. [2021-11-23 02:15:21,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-23 02:15:21,698 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:15:21,699 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-23 02:15:21,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:15:21,700 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_net_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 02:15:21,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:15:21,700 INFO L85 PathProgramCache]: Analyzing trace with hash -218234462, now seen corresponding path program 1 times [2021-11-23 02:15:21,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:15:21,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812745056] [2021-11-23 02:15:21,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:21,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:15:21,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:22,113 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-23 02:15:22,113 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:15:22,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812745056] [2021-11-23 02:15:22,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812745056] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:15:22,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:15:22,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:15:22,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114077376] [2021-11-23 02:15:22,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:15:22,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:15:22,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:15:22,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:15:22,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:15:22,116 INFO L87 Difference]: Start difference. First operand 5552 states and 7672 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-23 02:15:24,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:26,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:15:26,657 INFO L93 Difference]: Finished difference Result 12099 states and 16661 transitions. [2021-11-23 02:15:26,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:15:26,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 90 [2021-11-23 02:15:26,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:15:26,697 INFO L225 Difference]: With dead ends: 12099 [2021-11-23 02:15:26,697 INFO L226 Difference]: Without dead ends: 6565 [2021-11-23 02:15:26,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:15:26,732 INFO L933 BasicCegarLoop]: 3249 mSDtfsCounter, 2416 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2416 SdHoareTripleChecker+Valid, 5142 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:15:26,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2416 Valid, 5142 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 617 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2021-11-23 02:15:26,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6565 states. [2021-11-23 02:15:27,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6565 to 6553. [2021-11-23 02:15:27,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6553 states, 3553 states have (on average 1.207993245144948) internal successors, (4292), 3731 states have internal predecessors, (4292), 2354 states have call successors, (2354), 619 states have call predecessors, (2354), 616 states have return successors, (2354), 2306 states have call predecessors, (2354), 2352 states have call successors, (2354) [2021-11-23 02:15:27,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6553 states to 6553 states and 9000 transitions. [2021-11-23 02:15:27,127 INFO L78 Accepts]: Start accepts. Automaton has 6553 states and 9000 transitions. Word has length 90 [2021-11-23 02:15:27,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:15:27,128 INFO L470 AbstractCegarLoop]: Abstraction has 6553 states and 9000 transitions. [2021-11-23 02:15:27,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-23 02:15:27,129 INFO L276 IsEmpty]: Start isEmpty. Operand 6553 states and 9000 transitions. [2021-11-23 02:15:27,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-23 02:15:27,137 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:15:27,137 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-23 02:15:27,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:15:27,138 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 02:15:27,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:15:27,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1489171333, now seen corresponding path program 1 times [2021-11-23 02:15:27,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:15:27,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345314270] [2021-11-23 02:15:27,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:27,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:15:27,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:27,435 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:15:27,435 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:15:27,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345314270] [2021-11-23 02:15:27,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345314270] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:15:27,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:15:27,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:15:27,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139438423] [2021-11-23 02:15:27,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:15:27,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:15:27,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:15:27,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:15:27,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:15:27,438 INFO L87 Difference]: Start difference. First operand 6553 states and 9000 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-23 02:15:30,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:33,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:33,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:15:33,993 INFO L93 Difference]: Finished difference Result 6686 states and 9136 transitions. [2021-11-23 02:15:33,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:15:33,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 77 [2021-11-23 02:15:33,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:15:34,024 INFO L225 Difference]: With dead ends: 6686 [2021-11-23 02:15:34,024 INFO L226 Difference]: Without dead ends: 6684 [2021-11-23 02:15:34,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:15:34,029 INFO L933 BasicCegarLoop]: 3532 mSDtfsCounter, 2387 mSDsluCounter, 7104 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2389 SdHoareTripleChecker+Valid, 9884 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:15:34,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2389 Valid, 9884 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1142 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2021-11-23 02:15:34,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6684 states. [2021-11-23 02:15:34,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6684 to 6559. [2021-11-23 02:15:34,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6559 states, 3556 states have (on average 1.2078177727784027) internal successors, (4295), 3734 states have internal predecessors, (4295), 2356 states have call successors, (2356), 620 states have call predecessors, (2356), 617 states have return successors, (2356), 2308 states have call predecessors, (2356), 2354 states have call successors, (2356) [2021-11-23 02:15:34,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6559 states to 6559 states and 9007 transitions. [2021-11-23 02:15:34,426 INFO L78 Accepts]: Start accepts. Automaton has 6559 states and 9007 transitions. Word has length 77 [2021-11-23 02:15:34,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:15:34,426 INFO L470 AbstractCegarLoop]: Abstraction has 6559 states and 9007 transitions. [2021-11-23 02:15:34,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-23 02:15:34,427 INFO L276 IsEmpty]: Start isEmpty. Operand 6559 states and 9007 transitions. [2021-11-23 02:15:34,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-23 02:15:34,428 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:15:34,429 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-23 02:15:34,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:15:34,429 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 02:15:34,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:15:34,430 INFO L85 PathProgramCache]: Analyzing trace with hash -997919326, now seen corresponding path program 1 times [2021-11-23 02:15:34,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:15:34,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861617987] [2021-11-23 02:15:34,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:34,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:15:34,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:34,721 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:15:34,721 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:15:34,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861617987] [2021-11-23 02:15:34,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861617987] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:15:34,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:15:34,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:15:34,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609542546] [2021-11-23 02:15:34,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:15:34,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:15:34,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:15:34,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:15:34,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:15:34,724 INFO L87 Difference]: Start difference. First operand 6559 states and 9007 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 02:15:37,277 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:40,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:41,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:15:41,070 INFO L93 Difference]: Finished difference Result 6684 states and 9134 transitions. [2021-11-23 02:15:41,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:15:41,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 82 [2021-11-23 02:15:41,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:15:41,104 INFO L225 Difference]: With dead ends: 6684 [2021-11-23 02:15:41,104 INFO L226 Difference]: Without dead ends: 6682 [2021-11-23 02:15:41,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:15:41,110 INFO L933 BasicCegarLoop]: 3532 mSDtfsCounter, 2392 mSDsluCounter, 7100 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2394 SdHoareTripleChecker+Valid, 9880 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:15:41,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2394 Valid, 9880 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1142 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2021-11-23 02:15:41,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6682 states. [2021-11-23 02:15:41,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6682 to 6567. [2021-11-23 02:15:41,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6567 states, 3561 states have (on average 1.207806795843864) internal successors, (4301), 3739 states have internal predecessors, (4301), 2358 states have call successors, (2358), 621 states have call predecessors, (2358), 618 states have return successors, (2358), 2310 states have call predecessors, (2358), 2356 states have call successors, (2358) [2021-11-23 02:15:41,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6567 states to 6567 states and 9017 transitions. [2021-11-23 02:15:41,576 INFO L78 Accepts]: Start accepts. Automaton has 6567 states and 9017 transitions. Word has length 82 [2021-11-23 02:15:41,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:15:41,576 INFO L470 AbstractCegarLoop]: Abstraction has 6567 states and 9017 transitions. [2021-11-23 02:15:41,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 02:15:41,577 INFO L276 IsEmpty]: Start isEmpty. Operand 6567 states and 9017 transitions. [2021-11-23 02:15:41,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-23 02:15:41,579 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:15:41,581 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 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] [2021-11-23 02:15:41,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 02:15:41,581 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_usb_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 02:15:41,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:15:41,582 INFO L85 PathProgramCache]: Analyzing trace with hash 969234186, now seen corresponding path program 1 times [2021-11-23 02:15:41,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:15:41,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652587314] [2021-11-23 02:15:41,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:41,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:15:41,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:41,934 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-11-23 02:15:41,934 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:15:41,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652587314] [2021-11-23 02:15:41,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652587314] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:15:41,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528868584] [2021-11-23 02:15:41,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:41,935 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:15:41,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:15:41,941 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:15:41,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:15:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:43,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 5022 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 02:15:43,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:15:43,783 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-23 02:15:43,783 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:15:43,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528868584] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:15:43,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:15:43,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2021-11-23 02:15:43,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989398690] [2021-11-23 02:15:43,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:15:43,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:15:43,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:15:43,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:15:43,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:15:43,787 INFO L87 Difference]: Start difference. First operand 6567 states and 9017 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-23 02:15:46,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:49,408 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:49,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:15:49,680 INFO L93 Difference]: Finished difference Result 13132 states and 18023 transitions. [2021-11-23 02:15:49,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:15:49,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 98 [2021-11-23 02:15:49,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:15:49,712 INFO L225 Difference]: With dead ends: 13132 [2021-11-23 02:15:49,712 INFO L226 Difference]: Without dead ends: 6583 [2021-11-23 02:15:49,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:15:49,752 INFO L933 BasicCegarLoop]: 3251 mSDtfsCounter, 2402 mSDsluCounter, 2146 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2402 SdHoareTripleChecker+Valid, 5156 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:15:49,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2402 Valid, 5156 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 618 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2021-11-23 02:15:49,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6583 states. [2021-11-23 02:15:50,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6583 to 6571. [2021-11-23 02:15:50,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6571 states, 3561 states have (on average 1.2066835158663296) internal successors, (4297), 3739 states have internal predecessors, (4297), 2360 states have call successors, (2360), 623 states have call predecessors, (2360), 620 states have return successors, (2360), 2312 states have call predecessors, (2360), 2358 states have call successors, (2360) [2021-11-23 02:15:50,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6571 states to 6571 states and 9017 transitions. [2021-11-23 02:15:50,160 INFO L78 Accepts]: Start accepts. Automaton has 6571 states and 9017 transitions. Word has length 98 [2021-11-23 02:15:50,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:15:50,161 INFO L470 AbstractCegarLoop]: Abstraction has 6571 states and 9017 transitions. [2021-11-23 02:15:50,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-23 02:15:50,161 INFO L276 IsEmpty]: Start isEmpty. Operand 6571 states and 9017 transitions. [2021-11-23 02:15:50,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-23 02:15:50,163 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:15:50,163 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-23 02:15:50,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:15:50,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-23 02:15:50,377 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 02:15:50,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:15:50,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1222593435, now seen corresponding path program 1 times [2021-11-23 02:15:50,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:15:50,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655852886] [2021-11-23 02:15:50,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:50,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:15:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:50,662 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:15:50,662 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:15:50,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655852886] [2021-11-23 02:15:50,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655852886] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:15:50,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:15:50,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:15:50,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805819921] [2021-11-23 02:15:50,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:15:50,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:15:50,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:15:50,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:15:50,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:15:50,665 INFO L87 Difference]: Start difference. First operand 6571 states and 9017 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 02:15:53,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:57,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:57,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:15:57,472 INFO L93 Difference]: Finished difference Result 6684 states and 9131 transitions. [2021-11-23 02:15:57,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:15:57,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 84 [2021-11-23 02:15:57,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:15:57,499 INFO L225 Difference]: With dead ends: 6684 [2021-11-23 02:15:57,499 INFO L226 Difference]: Without dead ends: 6682 [2021-11-23 02:15:57,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:15:57,503 INFO L933 BasicCegarLoop]: 3532 mSDtfsCounter, 2375 mSDsluCounter, 7104 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2377 SdHoareTripleChecker+Valid, 9884 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:15:57,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2377 Valid, 9884 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1142 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2021-11-23 02:15:57,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6682 states. [2021-11-23 02:15:57,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6682 to 6571. [2021-11-23 02:15:57,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6571 states, 3561 states have (on average 1.206402695871946) internal successors, (4296), 3739 states have internal predecessors, (4296), 2360 states have call successors, (2360), 623 states have call predecessors, (2360), 620 states have return successors, (2360), 2312 states have call predecessors, (2360), 2358 states have call successors, (2360) [2021-11-23 02:15:57,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6571 states to 6571 states and 9016 transitions. [2021-11-23 02:15:57,910 INFO L78 Accepts]: Start accepts. Automaton has 6571 states and 9016 transitions. Word has length 84 [2021-11-23 02:15:57,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:15:57,912 INFO L470 AbstractCegarLoop]: Abstraction has 6571 states and 9016 transitions. [2021-11-23 02:15:57,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 02:15:57,912 INFO L276 IsEmpty]: Start isEmpty. Operand 6571 states and 9016 transitions. [2021-11-23 02:15:57,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-23 02:15:57,914 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:15:57,914 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-23 02:15:57,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 02:15:57,915 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 02:15:57,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:15:57,915 INFO L85 PathProgramCache]: Analyzing trace with hash 748539769, now seen corresponding path program 1 times [2021-11-23 02:15:57,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:15:57,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815729001] [2021-11-23 02:15:57,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:57,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:15:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:58,193 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:15:58,193 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:15:58,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815729001] [2021-11-23 02:15:58,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815729001] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:15:58,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:15:58,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:15:58,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931851617] [2021-11-23 02:15:58,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:15:58,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:15:58,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:15:58,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:15:58,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:15:58,196 INFO L87 Difference]: Start difference. First operand 6571 states and 9016 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-23 02:16:00,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:04,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:16:04,267 INFO L93 Difference]: Finished difference Result 6682 states and 9129 transitions. [2021-11-23 02:16:04,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:16:04,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 89 [2021-11-23 02:16:04,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:16:04,386 INFO L225 Difference]: With dead ends: 6682 [2021-11-23 02:16:04,390 INFO L226 Difference]: Without dead ends: 6680 [2021-11-23 02:16:04,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:16:04,394 INFO L933 BasicCegarLoop]: 3532 mSDtfsCounter, 2374 mSDsluCounter, 7104 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2376 SdHoareTripleChecker+Valid, 9884 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:16:04,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2376 Valid, 9884 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1142 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2021-11-23 02:16:04,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6680 states. [2021-11-23 02:16:04,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6680 to 6577. [2021-11-23 02:16:04,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6577 states, 3564 states have (on average 1.2062289562289563) internal successors, (4299), 3742 states have internal predecessors, (4299), 2362 states have call successors, (2362), 624 states have call predecessors, (2362), 621 states have return successors, (2362), 2314 states have call predecessors, (2362), 2360 states have call successors, (2362) [2021-11-23 02:16:04,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6577 states to 6577 states and 9023 transitions. [2021-11-23 02:16:04,799 INFO L78 Accepts]: Start accepts. Automaton has 6577 states and 9023 transitions. Word has length 89 [2021-11-23 02:16:04,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:16:04,800 INFO L470 AbstractCegarLoop]: Abstraction has 6577 states and 9023 transitions. [2021-11-23 02:16:04,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-23 02:16:04,801 INFO L276 IsEmpty]: Start isEmpty. Operand 6577 states and 9023 transitions. [2021-11-23 02:16:04,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-23 02:16:04,802 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:16:04,803 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-23 02:16:04,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 02:16:04,803 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 02:16:04,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:16:04,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1886003622, now seen corresponding path program 1 times [2021-11-23 02:16:04,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:16:04,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264413075] [2021-11-23 02:16:04,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:16:04,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:16:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:16:05,085 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:16:05,085 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:16:05,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264413075] [2021-11-23 02:16:05,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264413075] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:16:05,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:16:05,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:16:05,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599577972] [2021-11-23 02:16:05,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:16:05,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:16:05,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:16:05,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:16:05,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:16:05,088 INFO L87 Difference]: Start difference. First operand 6577 states and 9023 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-23 02:16:07,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:11,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:12,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:16:12,405 INFO L93 Difference]: Finished difference Result 6680 states and 9127 transitions. [2021-11-23 02:16:12,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:16:12,406 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 94 [2021-11-23 02:16:12,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:16:12,434 INFO L225 Difference]: With dead ends: 6680 [2021-11-23 02:16:12,434 INFO L226 Difference]: Without dead ends: 6678 [2021-11-23 02:16:12,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:16:12,440 INFO L933 BasicCegarLoop]: 3532 mSDtfsCounter, 2371 mSDsluCounter, 7104 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2373 SdHoareTripleChecker+Valid, 9884 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:16:12,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2373 Valid, 9884 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1142 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2021-11-23 02:16:12,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6678 states. [2021-11-23 02:16:12,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6678 to 6583. [2021-11-23 02:16:12,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6583 states, 3567 states have (on average 1.2060555088309504) internal successors, (4302), 3745 states have internal predecessors, (4302), 2364 states have call successors, (2364), 625 states have call predecessors, (2364), 622 states have return successors, (2364), 2316 states have call predecessors, (2364), 2362 states have call successors, (2364) [2021-11-23 02:16:13,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6583 states to 6583 states and 9030 transitions. [2021-11-23 02:16:13,027 INFO L78 Accepts]: Start accepts. Automaton has 6583 states and 9030 transitions. Word has length 94 [2021-11-23 02:16:13,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:16:13,027 INFO L470 AbstractCegarLoop]: Abstraction has 6583 states and 9030 transitions. [2021-11-23 02:16:13,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-23 02:16:13,028 INFO L276 IsEmpty]: Start isEmpty. Operand 6583 states and 9030 transitions. [2021-11-23 02:16:13,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-23 02:16:13,030 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:16:13,030 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-23 02:16:13,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-23 02:16:13,031 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 02:16:13,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:16:13,031 INFO L85 PathProgramCache]: Analyzing trace with hash 390590525, now seen corresponding path program 1 times [2021-11-23 02:16:13,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:16:13,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103514727] [2021-11-23 02:16:13,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:16:13,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:16:13,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:16:13,287 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:16:13,288 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:16:13,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103514727] [2021-11-23 02:16:13,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103514727] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:16:13,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:16:13,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:16:13,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891859374] [2021-11-23 02:16:13,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:16:13,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:16:13,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:16:13,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:16:13,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:16:13,291 INFO L87 Difference]: Start difference. First operand 6583 states and 9030 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-23 02:16:15,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:20,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:22,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:22,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:16:22,491 INFO L93 Difference]: Finished difference Result 6678 states and 9125 transitions. [2021-11-23 02:16:22,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:16:22,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 99 [2021-11-23 02:16:22,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:16:22,512 INFO L225 Difference]: With dead ends: 6678 [2021-11-23 02:16:22,512 INFO L226 Difference]: Without dead ends: 6676 [2021-11-23 02:16:22,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:16:22,516 INFO L933 BasicCegarLoop]: 3532 mSDtfsCounter, 2368 mSDsluCounter, 7104 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2370 SdHoareTripleChecker+Valid, 9884 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:16:22,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2370 Valid, 9884 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1141 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2021-11-23 02:16:22,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6676 states. [2021-11-23 02:16:22,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6676 to 6589. [2021-11-23 02:16:22,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6589 states, 3570 states have (on average 1.2058823529411764) internal successors, (4305), 3748 states have internal predecessors, (4305), 2366 states have call successors, (2366), 626 states have call predecessors, (2366), 623 states have return successors, (2366), 2318 states have call predecessors, (2366), 2364 states have call successors, (2366) [2021-11-23 02:16:23,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6589 states to 6589 states and 9037 transitions. [2021-11-23 02:16:23,032 INFO L78 Accepts]: Start accepts. Automaton has 6589 states and 9037 transitions. Word has length 99 [2021-11-23 02:16:23,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:16:23,033 INFO L470 AbstractCegarLoop]: Abstraction has 6589 states and 9037 transitions. [2021-11-23 02:16:23,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-23 02:16:23,033 INFO L276 IsEmpty]: Start isEmpty. Operand 6589 states and 9037 transitions. [2021-11-23 02:16:23,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-23 02:16:23,036 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:16:23,036 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-23 02:16:23,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-23 02:16:23,036 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 02:16:23,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:16:23,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1794728202, now seen corresponding path program 1 times [2021-11-23 02:16:23,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:16:23,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728948980] [2021-11-23 02:16:23,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:16:23,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:16:23,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:16:23,311 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:16:23,311 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:16:23,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728948980] [2021-11-23 02:16:23,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728948980] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:16:23,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:16:23,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:16:23,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656054352] [2021-11-23 02:16:23,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:16:23,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:16:23,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:16:23,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:16:23,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:16:23,316 INFO L87 Difference]: Start difference. First operand 6589 states and 9037 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-23 02:16:25,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:29,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:30,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:16:30,091 INFO L93 Difference]: Finished difference Result 6676 states and 9123 transitions. [2021-11-23 02:16:30,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:16:30,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 104 [2021-11-23 02:16:30,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:16:30,111 INFO L225 Difference]: With dead ends: 6676 [2021-11-23 02:16:30,111 INFO L226 Difference]: Without dead ends: 6674 [2021-11-23 02:16:30,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:16:30,115 INFO L933 BasicCegarLoop]: 3532 mSDtfsCounter, 2365 mSDsluCounter, 7104 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2367 SdHoareTripleChecker+Valid, 9884 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:16:30,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2367 Valid, 9884 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1142 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2021-11-23 02:16:30,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6674 states. [2021-11-23 02:16:30,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6674 to 6595. [2021-11-23 02:16:30,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6595 states, 3573 states have (on average 1.205709487825357) internal successors, (4308), 3751 states have internal predecessors, (4308), 2368 states have call successors, (2368), 627 states have call predecessors, (2368), 624 states have return successors, (2368), 2320 states have call predecessors, (2368), 2366 states have call successors, (2368) [2021-11-23 02:16:30,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6595 states to 6595 states and 9044 transitions. [2021-11-23 02:16:30,514 INFO L78 Accepts]: Start accepts. Automaton has 6595 states and 9044 transitions. Word has length 104 [2021-11-23 02:16:30,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:16:30,515 INFO L470 AbstractCegarLoop]: Abstraction has 6595 states and 9044 transitions. [2021-11-23 02:16:30,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-23 02:16:30,516 INFO L276 IsEmpty]: Start isEmpty. Operand 6595 states and 9044 transitions. [2021-11-23 02:16:30,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-23 02:16:30,518 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:16:30,519 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:16:30,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-23 02:16:30,519 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 02:16:30,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:16:30,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1965674856, now seen corresponding path program 1 times [2021-11-23 02:16:30,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:16:30,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314880352] [2021-11-23 02:16:30,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:16:30,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:16:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:16:30,880 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-11-23 02:16:30,880 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:16:30,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314880352] [2021-11-23 02:16:30,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314880352] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:16:30,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:16:30,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:16:30,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706544944] [2021-11-23 02:16:30,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:16:30,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:16:30,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:16:30,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:16:30,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:16:30,883 INFO L87 Difference]: Start difference. First operand 6595 states and 9044 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-23 02:16:33,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:36,721 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:37,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:16:37,453 INFO L93 Difference]: Finished difference Result 13268 states and 18284 transitions. [2021-11-23 02:16:37,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:16:37,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 123 [2021-11-23 02:16:37,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:16:37,484 INFO L225 Difference]: With dead ends: 13268 [2021-11-23 02:16:37,484 INFO L226 Difference]: Without dead ends: 6793 [2021-11-23 02:16:37,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:16:37,523 INFO L933 BasicCegarLoop]: 2869 mSDtfsCounter, 99 mSDsluCounter, 6424 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 51 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 8555 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:16:37,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 8555 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1120 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2021-11-23 02:16:37,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6793 states. [2021-11-23 02:16:37,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6793 to 6793. [2021-11-23 02:16:37,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6793 states, 3693 states have (on average 1.206607094503114) internal successors, (4456), 3871 states have internal predecessors, (4456), 2443 states have call successors, (2443), 630 states have call predecessors, (2443), 627 states have return successors, (2443), 2395 states have call predecessors, (2443), 2441 states have call successors, (2443) [2021-11-23 02:16:37,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6793 states to 6793 states and 9342 transitions. [2021-11-23 02:16:37,985 INFO L78 Accepts]: Start accepts. Automaton has 6793 states and 9342 transitions. Word has length 123 [2021-11-23 02:16:37,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:16:37,987 INFO L470 AbstractCegarLoop]: Abstraction has 6793 states and 9342 transitions. [2021-11-23 02:16:37,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-23 02:16:37,988 INFO L276 IsEmpty]: Start isEmpty. Operand 6793 states and 9342 transitions. [2021-11-23 02:16:37,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-23 02:16:37,992 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:16:37,992 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:16:37,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-23 02:16:37,992 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 02:16:37,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:16:37,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1098989513, now seen corresponding path program 1 times [2021-11-23 02:16:37,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:16:37,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304138145] [2021-11-23 02:16:37,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:16:37,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:16:38,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:16:38,422 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-11-23 02:16:38,423 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:16:38,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304138145] [2021-11-23 02:16:38,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304138145] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:16:38,423 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:16:38,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:16:38,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593294499] [2021-11-23 02:16:38,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:16:38,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:16:38,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:16:38,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:16:38,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:16:38,426 INFO L87 Difference]: Start difference. First operand 6793 states and 9342 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-23 02:16:42,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:48,784 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:52,710 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:54,141 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:16:54,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:16:54,796 INFO L93 Difference]: Finished difference Result 9940 states and 13619 transitions. [2021-11-23 02:16:54,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 02:16:54,797 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 127 [2021-11-23 02:16:54,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:16:54,835 INFO L225 Difference]: With dead ends: 9940 [2021-11-23 02:16:54,835 INFO L226 Difference]: Without dead ends: 9938 [2021-11-23 02:16:54,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:16:54,843 INFO L933 BasicCegarLoop]: 4103 mSDtfsCounter, 2996 mSDsluCounter, 15230 mSDsCounter, 0 mSdLazyCounter, 3791 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3000 SdHoareTripleChecker+Valid, 17605 SdHoareTripleChecker+Invalid, 3795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3791 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:16:54,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3000 Valid, 17605 Invalid, 3795 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 3791 Invalid, 1 Unknown, 0 Unchecked, 15.8s Time] [2021-11-23 02:16:54,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9938 states. [2021-11-23 02:16:55,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9938 to 9750. [2021-11-23 02:16:55,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9750 states, 5301 states have (on average 1.2044897189209582) internal successors, (6385), 5542 states have internal predecessors, (6385), 3496 states have call successors, (3496), 929 states have call predecessors, (3496), 923 states have return successors, (3531), 3425 states have call predecessors, (3531), 3494 states have call successors, (3531) [2021-11-23 02:16:55,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9750 states to 9750 states and 13412 transitions. [2021-11-23 02:16:55,451 INFO L78 Accepts]: Start accepts. Automaton has 9750 states and 13412 transitions. Word has length 127 [2021-11-23 02:16:55,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:16:55,451 INFO L470 AbstractCegarLoop]: Abstraction has 9750 states and 13412 transitions. [2021-11-23 02:16:55,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-23 02:16:55,452 INFO L276 IsEmpty]: Start isEmpty. Operand 9750 states and 13412 transitions. [2021-11-23 02:16:55,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-23 02:16:55,453 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:16:55,454 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-23 02:16:55,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-23 02:16:55,454 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 02:16:55,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:16:55,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1788669281, now seen corresponding path program 1 times [2021-11-23 02:16:55,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:16:55,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582660096] [2021-11-23 02:16:55,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:16:55,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:16:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:16:55,731 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:16:55,731 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:16:55,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582660096] [2021-11-23 02:16:55,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582660096] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:16:55,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:16:55,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:16:55,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160391834] [2021-11-23 02:16:55,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:16:55,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:16:55,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:16:55,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:16:55,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:16:55,735 INFO L87 Difference]: Start difference. First operand 9750 states and 13412 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-23 02:16:58,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:02,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:02,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:17:02,761 INFO L93 Difference]: Finished difference Result 9827 states and 13488 transitions. [2021-11-23 02:17:02,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:17:02,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 109 [2021-11-23 02:17:02,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:17:02,789 INFO L225 Difference]: With dead ends: 9827 [2021-11-23 02:17:02,789 INFO L226 Difference]: Without dead ends: 9825 [2021-11-23 02:17:02,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:17:02,794 INFO L933 BasicCegarLoop]: 3532 mSDtfsCounter, 2360 mSDsluCounter, 7102 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2362 SdHoareTripleChecker+Valid, 9884 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:17:02,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2362 Valid, 9884 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1139 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2021-11-23 02:17:02,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9825 states. [2021-11-23 02:17:03,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9825 to 9756. [2021-11-23 02:17:03,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9756 states, 5304 states have (on average 1.2043740573152337) internal successors, (6388), 5545 states have internal predecessors, (6388), 3498 states have call successors, (3498), 930 states have call predecessors, (3498), 924 states have return successors, (3533), 3427 states have call predecessors, (3533), 3496 states have call successors, (3533) [2021-11-23 02:17:03,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9756 states to 9756 states and 13419 transitions. [2021-11-23 02:17:03,397 INFO L78 Accepts]: Start accepts. Automaton has 9756 states and 13419 transitions. Word has length 109 [2021-11-23 02:17:03,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:17:03,397 INFO L470 AbstractCegarLoop]: Abstraction has 9756 states and 13419 transitions. [2021-11-23 02:17:03,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-23 02:17:03,397 INFO L276 IsEmpty]: Start isEmpty. Operand 9756 states and 13419 transitions. [2021-11-23 02:17:03,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-23 02:17:03,400 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:17:03,401 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:17:03,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-23 02:17:03,401 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 02:17:03,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:17:03,402 INFO L85 PathProgramCache]: Analyzing trace with hash 718844778, now seen corresponding path program 1 times [2021-11-23 02:17:03,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:17:03,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159486000] [2021-11-23 02:17:03,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:17:03,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:17:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:17:03,675 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-11-23 02:17:03,675 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:17:03,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159486000] [2021-11-23 02:17:03,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159486000] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:17:03,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:17:03,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:17:03,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482973468] [2021-11-23 02:17:03,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:17:03,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:17:03,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:17:03,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:17:03,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:17:03,679 INFO L87 Difference]: Start difference. First operand 9756 states and 13419 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-23 02:17:06,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:10,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:10,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:17:10,281 INFO L93 Difference]: Finished difference Result 19455 states and 26814 transitions. [2021-11-23 02:17:10,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:17:10,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 130 [2021-11-23 02:17:10,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:17:10,312 INFO L225 Difference]: With dead ends: 19455 [2021-11-23 02:17:10,312 INFO L226 Difference]: Without dead ends: 9819 [2021-11-23 02:17:10,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:17:10,341 INFO L933 BasicCegarLoop]: 3533 mSDtfsCounter, 2329 mSDsluCounter, 3188 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2329 SdHoareTripleChecker+Valid, 6353 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:17:10,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2329 Valid, 6353 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 756 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2021-11-23 02:17:10,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9819 states. [2021-11-23 02:17:10,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9819 to 9752. [2021-11-23 02:17:10,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9752 states, 5300 states have (on average 1.2037735849056603) internal successors, (6380), 5541 states have internal predecessors, (6380), 3498 states have call successors, (3498), 930 states have call predecessors, (3498), 924 states have return successors, (3533), 3427 states have call predecessors, (3533), 3496 states have call successors, (3533) [2021-11-23 02:17:10,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9752 states to 9752 states and 13411 transitions. [2021-11-23 02:17:10,930 INFO L78 Accepts]: Start accepts. Automaton has 9752 states and 13411 transitions. Word has length 130 [2021-11-23 02:17:10,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:17:10,931 INFO L470 AbstractCegarLoop]: Abstraction has 9752 states and 13411 transitions. [2021-11-23 02:17:10,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-23 02:17:10,931 INFO L276 IsEmpty]: Start isEmpty. Operand 9752 states and 13411 transitions. [2021-11-23 02:17:10,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-23 02:17:10,934 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:17:10,934 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 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] [2021-11-23 02:17:10,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-23 02:17:10,934 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 02:17:10,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:17:10,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1473775735, now seen corresponding path program 1 times [2021-11-23 02:17:10,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:17:10,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707749960] [2021-11-23 02:17:10,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:17:10,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:17:11,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:17:11,168 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-11-23 02:17:11,168 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:17:11,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707749960] [2021-11-23 02:17:11,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707749960] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:17:11,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:17:11,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:17:11,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877855862] [2021-11-23 02:17:11,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:17:11,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:17:11,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:17:11,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:17:11,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:17:11,170 INFO L87 Difference]: Start difference. First operand 9752 states and 13411 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2021-11-23 02:17:13,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:16,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:17,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:17:17,790 INFO L93 Difference]: Finished difference Result 19399 states and 26794 transitions. [2021-11-23 02:17:17,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:17:17,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 135 [2021-11-23 02:17:17,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:17:17,835 INFO L225 Difference]: With dead ends: 19399 [2021-11-23 02:17:17,835 INFO L226 Difference]: Without dead ends: 9767 [2021-11-23 02:17:17,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:17:17,990 INFO L933 BasicCegarLoop]: 2847 mSDtfsCounter, 1 mSDsluCounter, 3213 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5690 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:17:17,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 5690 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 746 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2021-11-23 02:17:17,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9767 states. [2021-11-23 02:17:18,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9767 to 9757. [2021-11-23 02:17:18,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9757 states, 5305 states have (on average 1.2035815268614514) internal successors, (6385), 5546 states have internal predecessors, (6385), 3498 states have call successors, (3498), 930 states have call predecessors, (3498), 924 states have return successors, (3533), 3427 states have call predecessors, (3533), 3496 states have call successors, (3533) [2021-11-23 02:17:18,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9757 states to 9757 states and 13416 transitions. [2021-11-23 02:17:18,413 INFO L78 Accepts]: Start accepts. Automaton has 9757 states and 13416 transitions. Word has length 135 [2021-11-23 02:17:18,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:17:18,414 INFO L470 AbstractCegarLoop]: Abstraction has 9757 states and 13416 transitions. [2021-11-23 02:17:18,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2021-11-23 02:17:18,414 INFO L276 IsEmpty]: Start isEmpty. Operand 9757 states and 13416 transitions. [2021-11-23 02:17:18,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-23 02:17:18,416 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:17:18,416 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-23 02:17:18,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-23 02:17:18,416 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 02:17:18,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:17:18,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1896628475, now seen corresponding path program 1 times [2021-11-23 02:17:18,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:17:18,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40968477] [2021-11-23 02:17:18,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:17:18,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:17:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:17:18,680 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:17:18,681 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:17:18,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40968477] [2021-11-23 02:17:18,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40968477] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:17:18,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:17:18,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:17:18,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628588036] [2021-11-23 02:17:18,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:17:18,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:17:18,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:17:18,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:17:18,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:17:18,686 INFO L87 Difference]: Start difference. First operand 9757 states and 13416 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-23 02:17:21,314 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:25,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:27,038 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:17:27,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:17:27,297 INFO L93 Difference]: Finished difference Result 9824 states and 13482 transitions. [2021-11-23 02:17:27,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:17:27,298 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 114 [2021-11-23 02:17:27,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:17:27,324 INFO L225 Difference]: With dead ends: 9824 [2021-11-23 02:17:27,324 INFO L226 Difference]: Without dead ends: 9822 [2021-11-23 02:17:27,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:17:27,329 INFO L933 BasicCegarLoop]: 3532 mSDtfsCounter, 2352 mSDsluCounter, 7104 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2354 SdHoareTripleChecker+Valid, 9884 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:17:27,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2354 Valid, 9884 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1141 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2021-11-23 02:17:27,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9822 states. [2021-11-23 02:17:27,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9822 to 9763. [2021-11-23 02:17:27,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9763 states, 5308 states have (on average 1.2034664657121326) internal successors, (6388), 5549 states have internal predecessors, (6388), 3500 states have call successors, (3500), 931 states have call predecessors, (3500), 925 states have return successors, (3535), 3429 states have call predecessors, (3535), 3498 states have call successors, (3535) [2021-11-23 02:17:27,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9763 states to 9763 states and 13423 transitions. [2021-11-23 02:17:27,818 INFO L78 Accepts]: Start accepts. Automaton has 9763 states and 13423 transitions. Word has length 114 [2021-11-23 02:17:27,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:17:27,819 INFO L470 AbstractCegarLoop]: Abstraction has 9763 states and 13423 transitions. [2021-11-23 02:17:27,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-23 02:17:27,819 INFO L276 IsEmpty]: Start isEmpty. Operand 9763 states and 13423 transitions. [2021-11-23 02:17:27,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-23 02:17:27,822 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:17:27,823 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 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] [2021-11-23 02:17:27,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-23 02:17:27,823 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-23 02:17:27,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:17:27,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1907854655, now seen corresponding path program 1 times [2021-11-23 02:17:27,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:17:27,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398896882] [2021-11-23 02:17:27,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:17:27,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:17:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:17:28,085 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-23 02:17:28,086 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:17:28,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398896882] [2021-11-23 02:17:28,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398896882] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:17:28,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121841295] [2021-11-23 02:17:28,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:17:28,087 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:17:28,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:17:28,090 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:17:28,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abef4dbf-6cfd-4425-bec1-f40daa92b0c6/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:17:29,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:17:29,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 5226 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:17:29,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:17:29,891 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-23 02:17:29,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:17:30,226 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-23 02:17:30,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121841295] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:17:30,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1658194093] [2021-11-23 02:17:30,257 INFO L159 IcfgInterpreter]: Started Sifa with 96 locations of interest [2021-11-23 02:17:30,258 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:17:30,265 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:17:30,270 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:17:30,271 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:17:47,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2021-11-23 02:17:49,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2021-11-23 02:17:50,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2021-11-23 02:17:51,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2021-11-23 02:17:53,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2021-11-23 02:17:54,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2021-11-23 02:17:57,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31