./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 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/bin/utaipan-TEXQjIfE4P/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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash deb1ab2dfee1720097b2641f46d2c4bfdc556bdc54a3c09b9a590ecca720241b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:39:35,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:39:35,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:39:35,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:39:35,523 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:39:35,525 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:39:35,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:39:35,529 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:39:35,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:39:35,533 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:39:35,534 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:39:35,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:39:35,536 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:39:35,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:39:35,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:39:35,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:39:35,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:39:35,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:39:35,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:39:35,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:39:35,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:39:35,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:39:35,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:39:35,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:39:35,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:39:35,558 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:39:35,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:39:35,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:39:35,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:39:35,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:39:35,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:39:35,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:39:35,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:39:35,566 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:39:35,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:39:35,568 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:39:35,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:39:35,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:39:35,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:39:35,571 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:39:35,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:39:35,573 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 23:39:35,624 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:39:35,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:39:35,625 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:39:35,626 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:39:35,627 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:39:35,627 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:39:35,627 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:39:35,628 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:39:35,628 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:39:35,628 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:39:35,629 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:39:35,629 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:39:35,630 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:39:35,630 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:39:35,630 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:39:35,630 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:39:35,631 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:39:35,631 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:39:35,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:39:35,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:39:35,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:39:35,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:39:35,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:39:35,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:39:35,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:39:35,634 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:39:35,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:39:35,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:39:35,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:39:35,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:39:35,637 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:39:35,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:39:35,638 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:39:35,638 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:39:35,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:39:35,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:39:35,639 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:39:35,639 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:39:35,639 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> deb1ab2dfee1720097b2641f46d2c4bfdc556bdc54a3c09b9a590ecca720241b [2021-11-20 23:39:35,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:39:35,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:39:35,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:39:35,965 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:39:35,966 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:39:35,967 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i [2021-11-20 23:39:36,039 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/bin/utaipan-TEXQjIfE4P/data/9bcf8d5e9/19dab1fecea243699c11ba43fefa38a5/FLAGe1eef94fd [2021-11-20 23:39:37,206 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:39:37,207 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i [2021-11-20 23:39:37,291 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/bin/utaipan-TEXQjIfE4P/data/9bcf8d5e9/19dab1fecea243699c11ba43fefa38a5/FLAGe1eef94fd [2021-11-20 23:39:37,376 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/bin/utaipan-TEXQjIfE4P/data/9bcf8d5e9/19dab1fecea243699c11ba43fefa38a5 [2021-11-20 23:39:37,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:39:37,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:39:37,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:39:37,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:39:37,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:39:37,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:39:37" (1/1) ... [2021-11-20 23:39:37,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5392d11a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:37, skipping insertion in model container [2021-11-20 23:39:37,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:39:37" (1/1) ... [2021-11-20 23:39:37,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:39:37,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:39:44,188 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524188,524201] [2021-11-20 23:39:44,192 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524333,524346] [2021-11-20 23:39:44,192 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524479,524492] [2021-11-20 23:39:44,193 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524644,524657] [2021-11-20 23:39:44,200 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524802,524815] [2021-11-20 23:39:44,202 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524960,524973] [2021-11-20 23:39:44,203 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525118,525131] [2021-11-20 23:39:44,203 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525278,525291] [2021-11-20 23:39:44,204 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525437,525450] [2021-11-20 23:39:44,204 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525576,525589] [2021-11-20 23:39:44,207 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525718,525731] [2021-11-20 23:39:44,207 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525867,525880] [2021-11-20 23:39:44,208 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526006,526019] [2021-11-20 23:39:44,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526161,526174] [2021-11-20 23:39:44,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526321,526334] [2021-11-20 23:39:44,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526472,526485] [2021-11-20 23:39:44,210 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526623,526636] [2021-11-20 23:39:44,211 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526775,526788] [2021-11-20 23:39:44,212 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526924,526937] [2021-11-20 23:39:44,213 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527072,527085] [2021-11-20 23:39:44,213 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527229,527242] [2021-11-20 23:39:44,214 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527378,527391] [2021-11-20 23:39:44,215 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527534,527547] [2021-11-20 23:39:44,216 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527687,527700] [2021-11-20 23:39:44,217 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527833,527846] [2021-11-20 23:39:44,217 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527976,527989] [2021-11-20 23:39:44,218 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528128,528141] [2021-11-20 23:39:44,220 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528274,528287] [2021-11-20 23:39:44,220 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528419,528432] [2021-11-20 23:39:44,221 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528573,528586] [2021-11-20 23:39:44,222 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528724,528737] [2021-11-20 23:39:44,222 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528879,528892] [2021-11-20 23:39:44,223 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529031,529044] [2021-11-20 23:39:44,223 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529186,529199] [2021-11-20 23:39:44,224 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529350,529363] [2021-11-20 23:39:44,224 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529506,529519] [2021-11-20 23:39:44,225 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529670,529683] [2021-11-20 23:39:44,225 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529812,529825] [2021-11-20 23:39:44,226 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529970,529983] [2021-11-20 23:39:44,226 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530137,530150] [2021-11-20 23:39:44,227 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530296,530309] [2021-11-20 23:39:44,227 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530455,530468] [2021-11-20 23:39:44,228 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530604,530617] [2021-11-20 23:39:44,228 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530751,530764] [2021-11-20 23:39:44,229 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530890,530903] [2021-11-20 23:39:44,229 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531053,531066] [2021-11-20 23:39:44,230 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531219,531232] [2021-11-20 23:39:44,231 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531383,531396] [2021-11-20 23:39:44,232 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531548,531561] [2021-11-20 23:39:44,232 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531713,531726] [2021-11-20 23:39:44,233 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531879,531892] [2021-11-20 23:39:44,233 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532044,532057] [2021-11-20 23:39:44,234 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532211,532224] [2021-11-20 23:39:44,234 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532371,532384] [2021-11-20 23:39:44,234 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532533,532546] [2021-11-20 23:39:44,235 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532692,532705] [2021-11-20 23:39:44,236 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532838,532851] [2021-11-20 23:39:44,236 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532981,532994] [2021-11-20 23:39:44,237 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533125,533138] [2021-11-20 23:39:44,238 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533268,533281] [2021-11-20 23:39:44,239 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533412,533425] [2021-11-20 23:39:44,239 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533553,533566] [2021-11-20 23:39:44,240 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533691,533704] [2021-11-20 23:39:44,240 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533849,533862] [2021-11-20 23:39:44,241 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534008,534021] [2021-11-20 23:39:44,241 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534164,534177] [2021-11-20 23:39:44,242 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534313,534326] [2021-11-20 23:39:44,242 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534465,534478] [2021-11-20 23:39:44,243 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534616,534629] [2021-11-20 23:39:44,243 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534765,534778] [2021-11-20 23:39:44,244 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534917,534930] [2021-11-20 23:39:44,244 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535065,535078] [2021-11-20 23:39:44,245 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535218,535231] [2021-11-20 23:39:44,247 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535369,535382] [2021-11-20 23:39:44,247 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535519,535532] [2021-11-20 23:39:44,248 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535666,535679] [2021-11-20 23:39:44,248 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535817,535830] [2021-11-20 23:39:44,249 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535968,535981] [2021-11-20 23:39:44,249 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536116,536129] [2021-11-20 23:39:44,250 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536282,536295] [2021-11-20 23:39:44,250 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536451,536464] [2021-11-20 23:39:44,250 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536618,536631] [2021-11-20 23:39:44,251 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536786,536799] [2021-11-20 23:39:44,252 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536936,536949] [2021-11-20 23:39:44,253 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[537083,537096] [2021-11-20 23:39:44,254 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[537244,537257] [2021-11-20 23:39:44,255 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[537414,537427] [2021-11-20 23:39:44,255 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[537576,537589] [2021-11-20 23:39:44,284 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:39:44,406 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:39:44,926 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524188,524201] [2021-11-20 23:39:44,926 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524333,524346] [2021-11-20 23:39:44,927 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524479,524492] [2021-11-20 23:39:44,927 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524644,524657] [2021-11-20 23:39:44,928 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524802,524815] [2021-11-20 23:39:44,928 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[524960,524973] [2021-11-20 23:39:44,929 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525118,525131] [2021-11-20 23:39:44,929 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525278,525291] [2021-11-20 23:39:44,929 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525437,525450] [2021-11-20 23:39:44,930 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525576,525589] [2021-11-20 23:39:44,932 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525718,525731] [2021-11-20 23:39:44,932 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[525867,525880] [2021-11-20 23:39:44,933 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526006,526019] [2021-11-20 23:39:44,933 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526161,526174] [2021-11-20 23:39:44,934 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526321,526334] [2021-11-20 23:39:44,934 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526472,526485] [2021-11-20 23:39:44,934 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526623,526636] [2021-11-20 23:39:44,935 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526775,526788] [2021-11-20 23:39:44,935 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[526924,526937] [2021-11-20 23:39:44,936 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527072,527085] [2021-11-20 23:39:44,936 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527229,527242] [2021-11-20 23:39:44,937 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527378,527391] [2021-11-20 23:39:44,937 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527534,527547] [2021-11-20 23:39:44,938 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527687,527700] [2021-11-20 23:39:44,938 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527833,527846] [2021-11-20 23:39:44,938 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[527976,527989] [2021-11-20 23:39:44,939 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528128,528141] [2021-11-20 23:39:44,940 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528274,528287] [2021-11-20 23:39:44,940 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528419,528432] [2021-11-20 23:39:44,941 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528573,528586] [2021-11-20 23:39:44,945 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528724,528737] [2021-11-20 23:39:44,946 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[528879,528892] [2021-11-20 23:39:44,947 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529031,529044] [2021-11-20 23:39:44,948 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529186,529199] [2021-11-20 23:39:44,948 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529350,529363] [2021-11-20 23:39:44,949 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529506,529519] [2021-11-20 23:39:44,950 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529670,529683] [2021-11-20 23:39:44,950 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529812,529825] [2021-11-20 23:39:44,951 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[529970,529983] [2021-11-20 23:39:44,951 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530137,530150] [2021-11-20 23:39:44,953 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530296,530309] [2021-11-20 23:39:44,953 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530455,530468] [2021-11-20 23:39:44,954 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530604,530617] [2021-11-20 23:39:44,954 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530751,530764] [2021-11-20 23:39:44,955 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[530890,530903] [2021-11-20 23:39:44,955 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531053,531066] [2021-11-20 23:39:44,956 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531219,531232] [2021-11-20 23:39:44,956 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531383,531396] [2021-11-20 23:39:44,957 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531548,531561] [2021-11-20 23:39:44,957 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531713,531726] [2021-11-20 23:39:44,958 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[531879,531892] [2021-11-20 23:39:44,958 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532044,532057] [2021-11-20 23:39:44,959 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532211,532224] [2021-11-20 23:39:44,959 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532371,532384] [2021-11-20 23:39:44,960 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532533,532546] [2021-11-20 23:39:44,961 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532692,532705] [2021-11-20 23:39:44,964 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532838,532851] [2021-11-20 23:39:44,964 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[532981,532994] [2021-11-20 23:39:44,965 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533125,533138] [2021-11-20 23:39:44,966 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533268,533281] [2021-11-20 23:39:44,967 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533412,533425] [2021-11-20 23:39:44,968 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533553,533566] [2021-11-20 23:39:44,969 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533691,533704] [2021-11-20 23:39:44,973 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[533849,533862] [2021-11-20 23:39:44,974 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534008,534021] [2021-11-20 23:39:44,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534164,534177] [2021-11-20 23:39:44,981 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534313,534326] [2021-11-20 23:39:44,982 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534465,534478] [2021-11-20 23:39:44,982 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534616,534629] [2021-11-20 23:39:44,983 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534765,534778] [2021-11-20 23:39:44,983 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[534917,534930] [2021-11-20 23:39:44,983 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535065,535078] [2021-11-20 23:39:44,984 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535218,535231] [2021-11-20 23:39:44,984 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535369,535382] [2021-11-20 23:39:44,985 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535519,535532] [2021-11-20 23:39:44,985 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535666,535679] [2021-11-20 23:39:44,985 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535817,535830] [2021-11-20 23:39:44,986 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[535968,535981] [2021-11-20 23:39:44,987 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536116,536129] [2021-11-20 23:39:44,988 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536282,536295] [2021-11-20 23:39:44,989 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536451,536464] [2021-11-20 23:39:44,990 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536618,536631] [2021-11-20 23:39:44,990 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536786,536799] [2021-11-20 23:39:44,991 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[536936,536949] [2021-11-20 23:39:44,991 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[537083,537096] [2021-11-20 23:39:44,991 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[537244,537257] [2021-11-20 23:39:44,992 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[537414,537427] [2021-11-20 23:39:44,992 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_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i[537576,537589] [2021-11-20 23:39:45,000 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:39:45,372 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:39:45,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:45 WrapperNode [2021-11-20 23:39:45,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:39:45,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:39:45,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:39:45,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:39:45,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:45" (1/1) ... [2021-11-20 23:39:45,525 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:45" (1/1) ... [2021-11-20 23:39:45,885 INFO L137 Inliner]: procedures = 877, calls = 4554, calls flagged for inlining = 420, calls inlined = 325, statements flattened = 8143 [2021-11-20 23:39:45,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:39:45,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:39:45,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:39:45,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:39:45,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:45" (1/1) ... [2021-11-20 23:39:45,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:45" (1/1) ... [2021-11-20 23:39:45,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:45" (1/1) ... [2021-11-20 23:39:45,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:45" (1/1) ... [2021-11-20 23:39:46,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:45" (1/1) ... [2021-11-20 23:39:46,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:45" (1/1) ... [2021-11-20 23:39:46,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:45" (1/1) ... [2021-11-20 23:39:46,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:39:46,390 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:39:46,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:39:46,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:39:46,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:45" (1/1) ... [2021-11-20 23:39:46,399 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:39:46,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:39:46,424 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:39:46,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:39:46,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_122 [2021-11-20 23:39:46,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_122 [2021-11-20 23:39:46,476 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_txbuf [2021-11-20 23:39:46,477 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_txbuf [2021-11-20 23:39:46,477 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2021-11-20 23:39:46,477 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2021-11-20 23:39:46,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-20 23:39:46,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-20 23:39:46,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_142 [2021-11-20 23:39:46,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_142 [2021-11-20 23:39:46,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-20 23:39:46,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-20 23:39:46,478 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_reg [2021-11-20 23:39:46,478 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_reg [2021-11-20 23:39:46,478 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-20 23:39:46,478 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-20 23:39:46,478 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-20 23:39:46,478 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-20 23:39:46,478 INFO L130 BoogieDeclarations]: Found specification of procedure alx_pci_error_resume [2021-11-20 23:39:46,478 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_pci_error_resume [2021-11-20 23:39:46,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_net_rtnetlink__double_lock [2021-11-20 23:39:46,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_net_rtnetlink__double_lock [2021-11-20 23:39:46,479 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem16 [2021-11-20 23:39:46,479 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem16 [2021-11-20 23:39:46,479 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-20 23:39:46,479 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-20 23:39:46,479 INFO L130 BoogieDeclarations]: Found specification of procedure alx_activate [2021-11-20 23:39:46,479 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_activate [2021-11-20 23:39:46,479 INFO L130 BoogieDeclarations]: Found specification of procedure alx_remove [2021-11-20 23:39:46,479 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_remove [2021-11-20 23:39:46,480 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_msi [2021-11-20 23:39:46,480 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_msi [2021-11-20 23:39:46,480 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-20 23:39:46,480 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-20 23:39:46,480 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_reg [2021-11-20 23:39:46,480 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_reg [2021-11-20 23:39:46,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-20 23:39:46,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-20 23:39:46,480 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-20 23:39:46,481 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-20 23:39:46,481 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-20 23:39:46,481 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-20 23:39:46,481 INFO L130 BoogieDeclarations]: Found specification of procedure alx_resume [2021-11-20 23:39:46,481 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_resume [2021-11-20 23:39:46,481 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_link_check [2021-11-20 23:39:46,481 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_link_check [2021-11-20 23:39:46,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-20 23:39:46,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-20 23:39:46,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-20 23:39:46,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-20 23:39:46,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:39:46,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-20 23:39:46,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-20 23:39:46,482 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_open [2021-11-20 23:39:46,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_open [2021-11-20 23:39:46,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-20 23:39:46,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-20 23:39:46,483 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem32 [2021-11-20 23:39:46,483 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem32 [2021-11-20 23:39:46,483 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-20 23:39:46,483 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-20 23:39:46,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-20 23:39:46,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-20 23:39:46,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_check_return_value_probe [2021-11-20 23:39:46,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_check_return_value_probe [2021-11-20 23:39:46,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:39:46,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-20 23:39:46,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-20 23:39:46,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_check_return_value_probe [2021-11-20 23:39:46,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_check_return_value_probe [2021-11-20 23:39:46,488 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2021-11-20 23:39:46,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2021-11-20 23:39:46,489 INFO L130 BoogieDeclarations]: Found specification of procedure alx_netif_stop [2021-11-20 23:39:46,489 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_netif_stop [2021-11-20 23:39:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:39:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 23:39:46,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 23:39:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-20 23:39:46,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-20 23:39:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:39:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 23:39:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_pcie [2021-11-20 23:39:46,491 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_pcie [2021-11-20 23:39:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_reset [2021-11-20 23:39:46,491 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_reset [2021-11-20 23:39:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_legacy [2021-11-20 23:39:46,491 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_legacy [2021-11-20 23:39:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure alx_refill_rx_ring [2021-11-20 23:39:46,491 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_refill_rx_ring [2021-11-20 23:39:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 23:39:46,492 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 23:39:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_irq_lock_of_alx_priv [2021-11-20 23:39:46,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_irq_lock_of_alx_priv [2021-11-20 23:39:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_macaddr [2021-11-20 23:39:46,492 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_macaddr [2021-11-20 23:39:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-20 23:39:46,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-20 23:39:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2021-11-20 23:39:46,492 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2021-11-20 23:39:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure alx_speed_to_ethadv [2021-11-20 23:39:46,493 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_speed_to_ethadv [2021-11-20 23:39:46,493 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-20 23:39:46,493 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-20 23:39:46,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:39:46,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:39:46,493 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2021-11-20 23:39:46,493 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2021-11-20 23:39:46,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 23:39:46,493 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-20 23:39:46,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-20 23:39:46,494 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-20 23:39:46,494 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-20 23:39:46,494 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-20 23:39:46,494 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_with_cr [2021-11-20 23:39:46,494 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_with_cr [2021-11-20 23:39:46,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-20 23:39:46,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-20 23:39:46,495 INFO L130 BoogieDeclarations]: Found specification of procedure alx_get_supported_speeds [2021-11-20 23:39:46,495 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_get_supported_speeds [2021-11-20 23:39:46,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 23:39:46,495 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 23:39:46,495 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_macaddr [2021-11-20 23:39:46,496 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_macaddr [2021-11-20 23:39:46,496 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_mem32 [2021-11-20 23:39:46,496 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_mem32 [2021-11-20 23:39:46,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-20 23:39:46,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-20 23:39:46,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-20 23:39:46,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-20 23:39:46,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_128 [2021-11-20 23:39:46,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_128 [2021-11-20 23:39:46,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-20 23:39:46,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-20 23:39:46,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-20 23:39:46,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-20 23:39:46,497 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-20 23:39:46,497 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-20 23:39:46,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:39:46,497 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-20 23:39:46,497 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-20 23:39:46,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-20 23:39:46,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-20 23:39:46,498 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_buffers [2021-11-20 23:39:46,498 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_buffers [2021-11-20 23:39:46,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:39:46,498 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_handle [2021-11-20 23:39:46,498 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_handle [2021-11-20 23:39:46,498 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-20 23:39:46,498 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-20 23:39:46,498 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-20 23:39:46,499 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-20 23:39:46,499 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-20 23:39:46,499 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-20 23:39:46,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-20 23:39:46,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-20 23:39:46,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-20 23:39:46,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-20 23:39:46,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-20 23:39:46,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-20 23:39:46,499 INFO L130 BoogieDeclarations]: Found specification of procedure alx_is_rev_a [2021-11-20 23:39:46,500 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_is_rev_a [2021-11-20 23:39:46,500 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-20 23:39:46,500 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-20 23:39:46,500 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_core [2021-11-20 23:39:46,500 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_core [2021-11-20 23:39:46,500 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_ext [2021-11-20 23:39:46,500 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_ext [2021-11-20 23:39:46,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:39:46,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 23:39:46,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 23:39:46,501 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_phy_link [2021-11-20 23:39:46,501 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_phy_link [2021-11-20 23:39:46,501 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_stop [2021-11-20 23:39:46,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_stop [2021-11-20 23:39:46,501 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_rx_mode [2021-11-20 23:39:46,501 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_rx_mode [2021-11-20 23:39:46,501 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-20 23:39:46,501 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-20 23:39:46,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_121 [2021-11-20 23:39:46,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_121 [2021-11-20 23:39:46,501 INFO L130 BoogieDeclarations]: Found specification of procedure alx_configure [2021-11-20 23:39:46,502 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_configure [2021-11-20 23:39:46,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_past_rtnl_unlock [2021-11-20 23:39:46,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_past_rtnl_unlock [2021-11-20 23:39:46,502 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-20 23:39:46,502 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-20 23:39:46,502 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_mac [2021-11-20 23:39:46,502 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_mac [2021-11-20 23:39:46,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_141 [2021-11-20 23:39:46,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_141 [2021-11-20 23:39:46,503 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2021-11-20 23:39:46,503 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2021-11-20 23:39:46,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-20 23:39:46,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-20 23:39:46,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 23:39:46,503 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 23:39:46,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 23:39:46,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 23:39:46,503 INFO L130 BoogieDeclarations]: Found specification of procedure alx_halt [2021-11-20 23:39:46,503 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_halt [2021-11-20 23:39:46,504 INFO L130 BoogieDeclarations]: Found specification of procedure alx_suspend [2021-11-20 23:39:46,504 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_suspend [2021-11-20 23:39:46,505 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_read_phy_reg [2021-11-20 23:39:46,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_read_phy_reg [2021-11-20 23:39:46,505 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-20 23:39:46,505 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-20 23:39:46,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-20 23:39:46,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-20 23:39:46,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-20 23:39:46,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-20 23:39:46,505 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tx_timeout [2021-11-20 23:39:46,505 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tx_timeout [2021-11-20 23:39:46,506 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_enable [2021-11-20 23:39:46,506 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_enable [2021-11-20 23:39:46,506 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-20 23:39:46,506 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-20 23:39:46,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_past_rtnl_lock [2021-11-20 23:39:46,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_past_rtnl_lock [2021-11-20 23:39:46,506 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_disable [2021-11-20 23:39:46,506 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_disable [2021-11-20 23:39:46,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-20 23:39:46,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-20 23:39:46,507 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-20 23:39:46,507 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-20 23:39:46,507 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-20 23:39:46,507 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-20 23:39:46,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 23:39:46,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 23:39:46,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-20 23:39:46,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-20 23:39:46,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_irq_lock_of_alx_priv [2021-11-20 23:39:46,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_irq_lock_of_alx_priv [2021-11-20 23:39:46,508 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-20 23:39:46,508 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-20 23:39:46,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:39:46,508 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_write [2021-11-20 23:39:46,508 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_write [2021-11-20 23:39:46,508 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-20 23:39:46,508 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-20 23:39:46,508 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2021-11-20 23:39:46,508 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_ext [2021-11-20 23:39:46,508 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_ext [2021-11-20 23:39:46,509 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-20 23:39:46,509 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-20 23:39:46,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 23:39:46,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_rtnl_is_locked [2021-11-20 23:39:46,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_rtnl_is_locked [2021-11-20 23:39:46,509 INFO L130 BoogieDeclarations]: Found specification of procedure ethadv_to_hw_cfg [2021-11-20 23:39:46,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ethadv_to_hw_cfg [2021-11-20 23:39:46,509 INFO L130 BoogieDeclarations]: Found specification of procedure alx_stop [2021-11-20 23:39:46,509 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_stop [2021-11-20 23:39:46,509 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-20 23:39:46,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-20 23:39:46,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 23:39:46,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-20 23:39:46,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-20 23:39:46,510 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-20 23:39:46,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-20 23:39:46,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-20 23:39:46,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-20 23:39:46,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 23:39:46,510 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 23:39:46,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-20 23:39:46,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-20 23:39:46,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-20 23:39:46,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-20 23:39:46,511 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_core [2021-11-20 23:39:46,511 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_core [2021-11-20 23:39:46,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-20 23:39:46,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-20 23:39:46,511 INFO L130 BoogieDeclarations]: Found specification of procedure alx_update_hw_stats [2021-11-20 23:39:46,511 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_update_hw_stats [2021-11-20 23:39:46,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_1 [2021-11-20 23:39:46,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_1 [2021-11-20 23:39:46,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-20 23:39:46,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-20 23:39:46,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_0 [2021-11-20 23:39:46,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_0 [2021-11-20 23:39:46,512 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_dbg [2021-11-20 23:39:46,512 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_dbg [2021-11-20 23:39:46,512 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-20 23:39:46,512 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-20 23:39:46,512 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-20 23:39:46,512 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-20 23:39:46,512 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_giga [2021-11-20 23:39:46,513 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_giga [2021-11-20 23:39:46,513 INFO L130 BoogieDeclarations]: Found specification of procedure alx_poll_controller [2021-11-20 23:39:46,513 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_poll_controller [2021-11-20 23:39:46,513 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 23:39:46,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 23:39:46,513 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-20 23:39:46,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-20 23:39:46,513 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_dbg [2021-11-20 23:39:46,513 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_dbg [2021-11-20 23:39:46,513 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-20 23:39:46,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-20 23:39:46,514 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-20 23:39:46,514 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-20 23:39:46,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-20 23:39:46,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-20 23:39:46,514 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_rings [2021-11-20 23:39:46,514 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_rings [2021-11-20 23:39:46,514 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-20 23:39:46,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-20 23:39:46,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 23:39:46,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 23:39:46,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 23:39:46,515 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-11-20 23:39:46,515 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-11-20 23:39:46,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-20 23:39:46,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-20 23:39:46,515 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-20 23:39:46,515 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-20 23:39:46,515 INFO L130 BoogieDeclarations]: Found specification of procedure alx_open [2021-11-20 23:39:46,515 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_open [2021-11-20 23:39:46,515 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-20 23:39:46,516 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-20 23:39:46,516 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-20 23:39:46,516 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-20 23:39:46,516 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2021-11-20 23:39:46,516 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2021-11-20 23:39:46,516 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-20 23:39:46,516 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-20 23:39:46,516 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-20 23:39:46,516 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-20 23:39:46,516 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-20 23:39:46,517 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-20 23:39:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit_rings [2021-11-20 23:39:46,517 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit_rings [2021-11-20 23:39:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_reg [2021-11-20 23:39:46,517 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_reg [2021-11-20 23:39:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-20 23:39:46,517 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-20 23:39:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-20 23:39:46,517 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-20 23:39:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 23:39:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_mdio_idle [2021-11-20 23:39:46,518 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_mdio_idle [2021-11-20 23:39:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-20 23:39:46,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-20 23:39:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-20 23:39:46,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-20 23:39:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-20 23:39:46,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-20 23:39:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-20 23:39:46,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-20 23:39:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-20 23:39:46,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-20 23:39:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-20 23:39:46,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-20 23:39:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-20 23:39:46,519 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-20 23:39:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-20 23:39:46,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-20 23:39:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-20 23:39:46,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-20 23:39:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 23:39:46,520 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 23:39:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-20 23:39:46,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-20 23:39:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2021-11-20 23:39:46,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2021-11-20 23:39:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-20 23:39:46,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-20 23:39:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit [2021-11-20 23:39:46,520 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit [2021-11-20 23:39:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tpd_avail [2021-11-20 23:39:46,521 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tpd_avail [2021-11-20 23:39:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure alx_setup_speed_duplex [2021-11-20 23:39:46,521 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_setup_speed_duplex [2021-11-20 23:39:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-20 23:39:46,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-20 23:39:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-20 23:39:46,521 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-20 23:39:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-20 23:39:46,521 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-20 23:39:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-20 23:39:46,522 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-20 23:39:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure alx_enable_aspm [2021-11-20 23:39:46,522 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_enable_aspm [2021-11-20 23:39:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_revision [2021-11-20 23:39:46,522 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_revision [2021-11-20 23:39:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_set_rx_mode [2021-11-20 23:39:46,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_set_rx_mode [2021-11-20 23:39:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_write_phy_reg [2021-11-20 23:39:46,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_write_phy_reg [2021-11-20 23:39:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-20 23:39:46,523 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-20 23:39:46,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-20 23:39:46,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-20 23:39:46,523 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-20 23:39:46,523 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-20 23:39:46,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-20 23:39:46,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-20 23:39:46,523 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-11-20 23:39:46,523 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-11-20 23:39:46,523 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_phy [2021-11-20 23:39:46,524 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_phy [2021-11-20 23:39:46,524 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-20 23:39:46,524 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-20 23:39:46,524 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-20 23:39:46,524 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-20 23:39:46,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:39:46,524 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le64 [2021-11-20 23:39:46,524 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le64 [2021-11-20 23:39:47,711 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:39:47,718 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:39:47,818 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 23:39:58,191 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:40:00,002 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:40:00,003 INFO L301 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-20 23:40:00,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:40:00 BoogieIcfgContainer [2021-11-20 23:40:00,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:40:00,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:40:00,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:40:00,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:40:00,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:39:37" (1/3) ... [2021-11-20 23:40:00,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70562520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:40:00, skipping insertion in model container [2021-11-20 23:40:00,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:45" (2/3) ... [2021-11-20 23:40:00,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70562520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:40:00, skipping insertion in model container [2021-11-20 23:40:00,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:40:00" (3/3) ... [2021-11-20 23:40:00,023 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--ethernet--atheros--alx--alx.ko.cil.i [2021-11-20 23:40:00,029 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:40:00,029 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2021-11-20 23:40:00,102 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:40:00,118 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 [2021-11-20 23:40:00,118 INFO L340 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2021-11-20 23:40:00,199 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) [2021-11-20 23:40:00,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-20 23:40:00,207 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:40:00,207 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] [2021-11-20 23:40:00,208 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)] === [2021-11-20 23:40:00,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:40:00,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1290487985, now seen corresponding path program 1 times [2021-11-20 23:40:00,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:40:00,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7548153] [2021-11-20 23:40:00,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:40:00,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:40:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:40:01,205 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:40:01,205 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:40:01,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7548153] [2021-11-20 23:40:01,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7548153] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:40:01,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:40:01,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:40:01,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797410779] [2021-11-20 23:40:01,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:40:01,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:40:01,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:40:01,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:40:01,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:40:01,245 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) [2021-11-20 23:40:04,145 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:40:07,711 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:40:09,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:40:09,414 INFO L93 Difference]: Finished difference Result 6466 states and 9409 transitions. [2021-11-20 23:40:09,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:40:09,416 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 [2021-11-20 23:40:09,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:40:09,477 INFO L225 Difference]: With dead ends: 6466 [2021-11-20 23:40:09,477 INFO L226 Difference]: Without dead ends: 4094 [2021-11-20 23:40:09,505 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 [2021-11-20 23:40:09,510 INFO L933 BasicCegarLoop]: 3527 mSDtfsCounter, 2407 mSDsluCounter, 7116 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s 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, 7.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:40:09,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2409 Valid, 9898 Invalid, 1137 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1135 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2021-11-20 23:40:09,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4094 states. [2021-11-20 23:40:09,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4094 to 3916. [2021-11-20 23:40:09,914 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) [2021-11-20 23:40:09,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3916 states to 3916 states and 5417 transitions. [2021-11-20 23:40:09,964 INFO L78 Accepts]: Start accepts. Automaton has 3916 states and 5417 transitions. Word has length 47 [2021-11-20 23:40:09,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:40:09,966 INFO L470 AbstractCegarLoop]: Abstraction has 3916 states and 5417 transitions. [2021-11-20 23:40:09,966 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) [2021-11-20 23:40:09,966 INFO L276 IsEmpty]: Start isEmpty. Operand 3916 states and 5417 transitions. [2021-11-20 23:40:09,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-20 23:40:09,970 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:40:09,970 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] [2021-11-20 23:40:09,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:40:09,971 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)] === [2021-11-20 23:40:09,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:40:09,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1470152580, now seen corresponding path program 1 times [2021-11-20 23:40:09,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:40:09,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392094832] [2021-11-20 23:40:09,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:40:09,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:40:10,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:40:10,388 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:40:10,389 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:40:10,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392094832] [2021-11-20 23:40:10,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392094832] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:40:10,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:40:10,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:40:10,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341270173] [2021-11-20 23:40:10,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:40:10,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:40:10,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:40:10,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:40:10,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:40:10,393 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) [2021-11-20 23:40:13,054 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:40:16,061 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:40:18,074 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:40:20,098 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:40:20,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:40:20,426 INFO L93 Difference]: Finished difference Result 5697 states and 7819 transitions. [2021-11-20 23:40:20,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:40:20,427 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 [2021-11-20 23:40:20,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:40:20,477 INFO L225 Difference]: With dead ends: 5697 [2021-11-20 23:40:20,477 INFO L226 Difference]: Without dead ends: 5695 [2021-11-20 23:40:20,482 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 [2021-11-20 23:40:20,483 INFO L933 BasicCegarLoop]: 3511 mSDtfsCounter, 2407 mSDsluCounter, 7076 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2409 SdHoareTripleChecker+Valid, 9842 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:40:20,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2409 Valid, 9842 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1126 Invalid, 3 Unknown, 0 Unchecked, 9.7s Time] [2021-11-20 23:40:20,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5695 states. [2021-11-20 23:40:20,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5695 to 5528. [2021-11-20 23:40:20,821 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) [2021-11-20 23:40:20,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5528 states to 5528 states and 7644 transitions. [2021-11-20 23:40:20,875 INFO L78 Accepts]: Start accepts. Automaton has 5528 states and 7644 transitions. Word has length 52 [2021-11-20 23:40:20,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:40:20,876 INFO L470 AbstractCegarLoop]: Abstraction has 5528 states and 7644 transitions. [2021-11-20 23:40:20,876 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) [2021-11-20 23:40:20,877 INFO L276 IsEmpty]: Start isEmpty. Operand 5528 states and 7644 transitions. [2021-11-20 23:40:20,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-20 23:40:20,885 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:40:20,886 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] [2021-11-20 23:40:20,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 23:40:20,886 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)] === [2021-11-20 23:40:20,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:40:20,887 INFO L85 PathProgramCache]: Analyzing trace with hash 306637433, now seen corresponding path program 1 times [2021-11-20 23:40:20,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:40:20,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103032331] [2021-11-20 23:40:20,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:40:20,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:40:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:40:21,292 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:40:21,293 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:40:21,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103032331] [2021-11-20 23:40:21,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103032331] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:40:21,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:40:21,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:40:21,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019767513] [2021-11-20 23:40:21,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:40:21,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:40:21,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:40:21,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:40:21,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:40:21,295 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) [2021-11-20 23:40:23,878 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:40:27,857 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:40:28,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:40:28,112 INFO L93 Difference]: Finished difference Result 5695 states and 7817 transitions. [2021-11-20 23:40:28,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:40:28,113 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 [2021-11-20 23:40:28,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:40:28,180 INFO L225 Difference]: With dead ends: 5695 [2021-11-20 23:40:28,180 INFO L226 Difference]: Without dead ends: 5693 [2021-11-20 23:40:28,185 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 [2021-11-20 23:40:28,190 INFO L933 BasicCegarLoop]: 3511 mSDtfsCounter, 2404 mSDsluCounter, 7074 mSDsCounter, 0 mSdLazyCounter, 1125 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2406 SdHoareTripleChecker+Valid, 9842 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1125 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:40:28,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2406 Valid, 9842 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1125 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2021-11-20 23:40:28,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5693 states. [2021-11-20 23:40:28,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5693 to 5534. [2021-11-20 23:40:28,604 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) [2021-11-20 23:40:28,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5534 states to 5534 states and 7651 transitions. [2021-11-20 23:40:28,652 INFO L78 Accepts]: Start accepts. Automaton has 5534 states and 7651 transitions. Word has length 57 [2021-11-20 23:40:28,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:40:28,654 INFO L470 AbstractCegarLoop]: Abstraction has 5534 states and 7651 transitions. [2021-11-20 23:40:28,655 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) [2021-11-20 23:40:28,656 INFO L276 IsEmpty]: Start isEmpty. Operand 5534 states and 7651 transitions. [2021-11-20 23:40:28,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-20 23:40:28,659 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:40:28,659 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] [2021-11-20 23:40:28,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 23:40:28,660 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)] === [2021-11-20 23:40:28,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:40:28,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1634717069, now seen corresponding path program 1 times [2021-11-20 23:40:28,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:40:28,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131922217] [2021-11-20 23:40:28,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:40:28,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:40:28,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:40:29,091 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:40:29,091 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:40:29,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131922217] [2021-11-20 23:40:29,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131922217] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:40:29,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:40:29,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:40:29,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919772112] [2021-11-20 23:40:29,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:40:29,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:40:29,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:40:29,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:40:29,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:40:29,094 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) [2021-11-20 23:40:31,664 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:40:35,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:40:37,367 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:40:37,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:40:37,630 INFO L93 Difference]: Finished difference Result 5693 states and 7815 transitions. [2021-11-20 23:40:37,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:40:37,631 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 [2021-11-20 23:40:37,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:40:37,680 INFO L225 Difference]: With dead ends: 5693 [2021-11-20 23:40:37,680 INFO L226 Difference]: Without dead ends: 5691 [2021-11-20 23:40:37,684 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 [2021-11-20 23:40:37,685 INFO L933 BasicCegarLoop]: 3511 mSDtfsCounter, 2401 mSDsluCounter, 7076 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2403 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, 8.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:40:37,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2403 Valid, 9842 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1128 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2021-11-20 23:40:37,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5691 states. [2021-11-20 23:40:38,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5691 to 5540. [2021-11-20 23:40:38,084 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) [2021-11-20 23:40:38,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5540 states to 5540 states and 7658 transitions. [2021-11-20 23:40:38,116 INFO L78 Accepts]: Start accepts. Automaton has 5540 states and 7658 transitions. Word has length 62 [2021-11-20 23:40:38,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:40:38,117 INFO L470 AbstractCegarLoop]: Abstraction has 5540 states and 7658 transitions. [2021-11-20 23:40:38,117 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) [2021-11-20 23:40:38,117 INFO L276 IsEmpty]: Start isEmpty. Operand 5540 states and 7658 transitions. [2021-11-20 23:40:38,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-20 23:40:38,119 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:40:38,120 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] [2021-11-20 23:40:38,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 23:40:38,120 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)] === [2021-11-20 23:40:38,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:40:38,121 INFO L85 PathProgramCache]: Analyzing trace with hash -369807573, now seen corresponding path program 1 times [2021-11-20 23:40:38,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:40:38,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034342963] [2021-11-20 23:40:38,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:40:38,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:40:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:40:38,444 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:40:38,445 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:40:38,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034342963] [2021-11-20 23:40:38,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034342963] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:40:38,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:40:38,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:40:38,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649394071] [2021-11-20 23:40:38,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:40:38,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:40:38,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:40:38,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:40:38,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:40:38,448 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) [2021-11-20 23:40:40,962 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:40:44,899 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:40:45,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:40:45,161 INFO L93 Difference]: Finished difference Result 5691 states and 7813 transitions. [2021-11-20 23:40:45,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:40:45,161 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 [2021-11-20 23:40:45,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:40:45,244 INFO L225 Difference]: With dead ends: 5691 [2021-11-20 23:40:45,244 INFO L226 Difference]: Without dead ends: 5689 [2021-11-20 23:40:45,248 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 [2021-11-20 23:40:45,249 INFO L933 BasicCegarLoop]: 3511 mSDtfsCounter, 2398 mSDsluCounter, 7076 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s 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, 6.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:40:45,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2400 Valid, 9842 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1128 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2021-11-20 23:40:45,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5689 states. [2021-11-20 23:40:45,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5689 to 5546. [2021-11-20 23:40:45,561 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) [2021-11-20 23:40:45,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5546 states to 5546 states and 7665 transitions. [2021-11-20 23:40:45,591 INFO L78 Accepts]: Start accepts. Automaton has 5546 states and 7665 transitions. Word has length 67 [2021-11-20 23:40:45,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:40:45,592 INFO L470 AbstractCegarLoop]: Abstraction has 5546 states and 7665 transitions. [2021-11-20 23:40:45,592 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) [2021-11-20 23:40:45,592 INFO L276 IsEmpty]: Start isEmpty. Operand 5546 states and 7665 transitions. [2021-11-20 23:40:45,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-20 23:40:45,594 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:40:45,594 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] [2021-11-20 23:40:45,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 23:40:45,594 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)] === [2021-11-20 23:40:45,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:40:45,595 INFO L85 PathProgramCache]: Analyzing trace with hash 580662307, now seen corresponding path program 1 times [2021-11-20 23:40:45,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:40:45,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777690961] [2021-11-20 23:40:45,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:40:45,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:40:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:40:45,964 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:40:45,964 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:40:45,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777690961] [2021-11-20 23:40:45,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777690961] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:40:45,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:40:45,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:40:45,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545721769] [2021-11-20 23:40:45,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:40:45,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:40:45,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:40:45,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:40:45,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:40:45,967 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) [2021-11-20 23:40:48,547 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:40:52,288 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:40:52,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:40:52,515 INFO L93 Difference]: Finished difference Result 5689 states and 7811 transitions. [2021-11-20 23:40:52,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:40:52,516 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 [2021-11-20 23:40:52,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:40:52,541 INFO L225 Difference]: With dead ends: 5689 [2021-11-20 23:40:52,541 INFO L226 Difference]: Without dead ends: 5687 [2021-11-20 23:40:52,545 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 [2021-11-20 23:40:52,546 INFO L933 BasicCegarLoop]: 3511 mSDtfsCounter, 2395 mSDsluCounter, 7074 mSDsCounter, 0 mSdLazyCounter, 1125 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2397 SdHoareTripleChecker+Valid, 9842 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1125 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:40:52,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2397 Valid, 9842 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1125 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2021-11-20 23:40:52,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5687 states. [2021-11-20 23:40:52,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5687 to 5552. [2021-11-20 23:40:52,855 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) [2021-11-20 23:40:52,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5552 states to 5552 states and 7672 transitions. [2021-11-20 23:40:52,885 INFO L78 Accepts]: Start accepts. Automaton has 5552 states and 7672 transitions. Word has length 72 [2021-11-20 23:40:52,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:40:52,886 INFO L470 AbstractCegarLoop]: Abstraction has 5552 states and 7672 transitions. [2021-11-20 23:40:52,887 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) [2021-11-20 23:40:52,887 INFO L276 IsEmpty]: Start isEmpty. Operand 5552 states and 7672 transitions. [2021-11-20 23:40:52,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-20 23:40:52,888 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:40:52,889 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] [2021-11-20 23:40:52,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 23:40:52,889 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)] === [2021-11-20 23:40:52,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:40:52,890 INFO L85 PathProgramCache]: Analyzing trace with hash -218234462, now seen corresponding path program 1 times [2021-11-20 23:40:52,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:40:52,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934252895] [2021-11-20 23:40:52,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:40:52,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:40:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:40:53,265 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-20 23:40:53,265 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:40:53,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934252895] [2021-11-20 23:40:53,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934252895] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:40:53,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:40:53,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:40:53,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788033399] [2021-11-20 23:40:53,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:40:53,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:40:53,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:40:53,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:40:53,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:40:53,268 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) [2021-11-20 23:40:55,672 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:40:58,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:40:58,481 INFO L93 Difference]: Finished difference Result 12099 states and 16661 transitions. [2021-11-20 23:40:58,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:40:58,481 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 [2021-11-20 23:40:58,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:40:58,513 INFO L225 Difference]: With dead ends: 12099 [2021-11-20 23:40:58,513 INFO L226 Difference]: Without dead ends: 6565 [2021-11-20 23:40:58,542 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 [2021-11-20 23:40:58,543 INFO L933 BasicCegarLoop]: 3249 mSDtfsCounter, 2416 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s 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, 4.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:40:58,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2416 Valid, 5142 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 617 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2021-11-20 23:40:58,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6565 states. [2021-11-20 23:40:58,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6565 to 6553. [2021-11-20 23:40:58,886 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) [2021-11-20 23:40:58,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6553 states to 6553 states and 9000 transitions. [2021-11-20 23:40:58,921 INFO L78 Accepts]: Start accepts. Automaton has 6553 states and 9000 transitions. Word has length 90 [2021-11-20 23:40:58,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:40:58,923 INFO L470 AbstractCegarLoop]: Abstraction has 6553 states and 9000 transitions. [2021-11-20 23:40:58,923 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) [2021-11-20 23:40:58,923 INFO L276 IsEmpty]: Start isEmpty. Operand 6553 states and 9000 transitions. [2021-11-20 23:40:58,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-20 23:40:58,931 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:40:58,932 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] [2021-11-20 23:40:58,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 23:40:58,932 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)] === [2021-11-20 23:40:58,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:40:58,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1489171333, now seen corresponding path program 1 times [2021-11-20 23:40:58,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:40:58,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241727203] [2021-11-20 23:40:58,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:40:58,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:40:59,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:40:59,217 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:40:59,217 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:40:59,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241727203] [2021-11-20 23:40:59,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241727203] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:40:59,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:40:59,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:40:59,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478073557] [2021-11-20 23:40:59,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:40:59,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:40:59,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:40:59,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:40:59,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:40:59,220 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) [2021-11-20 23:41:01,785 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:05,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:41:05,129 INFO L93 Difference]: Finished difference Result 6686 states and 9136 transitions. [2021-11-20 23:41:05,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:41:05,129 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 [2021-11-20 23:41:05,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:41:05,160 INFO L225 Difference]: With dead ends: 6686 [2021-11-20 23:41:05,161 INFO L226 Difference]: Without dead ends: 6684 [2021-11-20 23:41:05,166 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 [2021-11-20 23:41:05,167 INFO L933 BasicCegarLoop]: 3532 mSDtfsCounter, 2387 mSDsluCounter, 7104 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s 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, 5.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:41:05,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2389 Valid, 9884 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1142 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2021-11-20 23:41:05,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6684 states. [2021-11-20 23:41:05,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6684 to 6559. [2021-11-20 23:41:05,636 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) [2021-11-20 23:41:05,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6559 states to 6559 states and 9007 transitions. [2021-11-20 23:41:05,670 INFO L78 Accepts]: Start accepts. Automaton has 6559 states and 9007 transitions. Word has length 77 [2021-11-20 23:41:05,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:41:05,670 INFO L470 AbstractCegarLoop]: Abstraction has 6559 states and 9007 transitions. [2021-11-20 23:41:05,671 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) [2021-11-20 23:41:05,671 INFO L276 IsEmpty]: Start isEmpty. Operand 6559 states and 9007 transitions. [2021-11-20 23:41:05,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-20 23:41:05,672 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:41:05,673 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] [2021-11-20 23:41:05,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 23:41:05,673 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)] === [2021-11-20 23:41:05,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:41:05,674 INFO L85 PathProgramCache]: Analyzing trace with hash -997919326, now seen corresponding path program 1 times [2021-11-20 23:41:05,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:41:05,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672181172] [2021-11-20 23:41:05,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:41:05,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:41:05,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:41:05,964 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:41:05,964 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:41:05,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672181172] [2021-11-20 23:41:05,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672181172] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:41:05,964 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:41:05,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:41:05,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919048145] [2021-11-20 23:41:05,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:41:05,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:41:05,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:41:05,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:41:05,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:41:05,967 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) [2021-11-20 23:41:08,518 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:11,306 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:12,373 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:13,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:41:13,113 INFO L93 Difference]: Finished difference Result 6684 states and 9134 transitions. [2021-11-20 23:41:13,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:41:13,114 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 [2021-11-20 23:41:13,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:41:13,145 INFO L225 Difference]: With dead ends: 6684 [2021-11-20 23:41:13,145 INFO L226 Difference]: Without dead ends: 6682 [2021-11-20 23:41:13,150 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 [2021-11-20 23:41:13,151 INFO L933 BasicCegarLoop]: 3532 mSDtfsCounter, 2392 mSDsluCounter, 7100 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s 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, 6.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:41:13,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2394 Valid, 9880 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1142 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2021-11-20 23:41:13,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6682 states. [2021-11-20 23:41:13,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6682 to 6567. [2021-11-20 23:41:13,505 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) [2021-11-20 23:41:13,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6567 states to 6567 states and 9017 transitions. [2021-11-20 23:41:13,540 INFO L78 Accepts]: Start accepts. Automaton has 6567 states and 9017 transitions. Word has length 82 [2021-11-20 23:41:13,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:41:13,540 INFO L470 AbstractCegarLoop]: Abstraction has 6567 states and 9017 transitions. [2021-11-20 23:41:13,541 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) [2021-11-20 23:41:13,541 INFO L276 IsEmpty]: Start isEmpty. Operand 6567 states and 9017 transitions. [2021-11-20 23:41:13,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-20 23:41:13,544 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:41:13,544 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] [2021-11-20 23:41:13,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 23:41:13,545 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)] === [2021-11-20 23:41:13,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:41:13,545 INFO L85 PathProgramCache]: Analyzing trace with hash 969234186, now seen corresponding path program 1 times [2021-11-20 23:41:13,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:41:13,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114600031] [2021-11-20 23:41:13,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:41:13,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:41:13,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:41:13,954 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-11-20 23:41:13,955 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:41:13,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114600031] [2021-11-20 23:41:13,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114600031] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:41:13,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316269454] [2021-11-20 23:41:13,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:41:13,956 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:41:13,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:41:13,963 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:41:13,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 23:41:15,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:41:15,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 5022 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 23:41:15,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:41:15,729 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-20 23:41:15,729 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:41:15,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316269454] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:41:15,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:41:15,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2021-11-20 23:41:15,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296055001] [2021-11-20 23:41:15,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:41:15,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:41:15,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:41:15,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:41:15,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-20 23:41:15,732 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) [2021-11-20 23:41:18,144 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:20,377 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:20,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:41:20,610 INFO L93 Difference]: Finished difference Result 13132 states and 18023 transitions. [2021-11-20 23:41:20,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:41:20,611 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 [2021-11-20 23:41:20,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:41:20,644 INFO L225 Difference]: With dead ends: 13132 [2021-11-20 23:41:20,644 INFO L226 Difference]: Without dead ends: 6583 [2021-11-20 23:41:20,680 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 [2021-11-20 23:41:20,680 INFO L933 BasicCegarLoop]: 3251 mSDtfsCounter, 2402 mSDsluCounter, 2146 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s 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, 4.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:41:20,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2402 Valid, 5156 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 618 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2021-11-20 23:41:20,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6583 states. [2021-11-20 23:41:21,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6583 to 6571. [2021-11-20 23:41:21,044 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) [2021-11-20 23:41:21,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6571 states to 6571 states and 9017 transitions. [2021-11-20 23:41:21,078 INFO L78 Accepts]: Start accepts. Automaton has 6571 states and 9017 transitions. Word has length 98 [2021-11-20 23:41:21,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:41:21,079 INFO L470 AbstractCegarLoop]: Abstraction has 6571 states and 9017 transitions. [2021-11-20 23:41:21,080 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) [2021-11-20 23:41:21,080 INFO L276 IsEmpty]: Start isEmpty. Operand 6571 states and 9017 transitions. [2021-11-20 23:41:21,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-20 23:41:21,081 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:41:21,082 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] [2021-11-20 23:41:21,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 23:41:21,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-20 23:41:21,303 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)] === [2021-11-20 23:41:21,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:41:21,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1222593435, now seen corresponding path program 1 times [2021-11-20 23:41:21,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:41:21,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580142401] [2021-11-20 23:41:21,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:41:21,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:41:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:41:21,573 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:41:21,573 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:41:21,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580142401] [2021-11-20 23:41:21,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580142401] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:41:21,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:41:21,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:41:21,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221749806] [2021-11-20 23:41:21,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:41:21,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:41:21,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:41:21,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:41:21,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:41:21,577 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) [2021-11-20 23:41:24,225 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:29,254 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:29,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:41:29,437 INFO L93 Difference]: Finished difference Result 6684 states and 9131 transitions. [2021-11-20 23:41:29,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:41:29,437 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 [2021-11-20 23:41:29,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:41:29,463 INFO L225 Difference]: With dead ends: 6684 [2021-11-20 23:41:29,463 INFO L226 Difference]: Without dead ends: 6682 [2021-11-20 23:41:29,468 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 [2021-11-20 23:41:29,468 INFO L933 BasicCegarLoop]: 3532 mSDtfsCounter, 2375 mSDsluCounter, 7104 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2377 SdHoareTripleChecker+Valid, 9884 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:41:29,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2377 Valid, 9884 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1141 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2021-11-20 23:41:29,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6682 states. [2021-11-20 23:41:29,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6682 to 6571. [2021-11-20 23:41:29,858 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) [2021-11-20 23:41:29,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6571 states to 6571 states and 9016 transitions. [2021-11-20 23:41:29,891 INFO L78 Accepts]: Start accepts. Automaton has 6571 states and 9016 transitions. Word has length 84 [2021-11-20 23:41:29,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:41:29,894 INFO L470 AbstractCegarLoop]: Abstraction has 6571 states and 9016 transitions. [2021-11-20 23:41:29,894 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) [2021-11-20 23:41:29,894 INFO L276 IsEmpty]: Start isEmpty. Operand 6571 states and 9016 transitions. [2021-11-20 23:41:29,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-20 23:41:29,896 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:41:29,896 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] [2021-11-20 23:41:29,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 23:41:29,897 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)] === [2021-11-20 23:41:29,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:41:29,898 INFO L85 PathProgramCache]: Analyzing trace with hash 748539769, now seen corresponding path program 1 times [2021-11-20 23:41:29,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:41:29,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569426210] [2021-11-20 23:41:29,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:41:29,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:41:30,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:41:30,159 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:41:30,160 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:41:30,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569426210] [2021-11-20 23:41:30,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569426210] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:41:30,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:41:30,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:41:30,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342134937] [2021-11-20 23:41:30,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:41:30,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:41:30,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:41:30,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:41:30,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:41:30,162 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) [2021-11-20 23:41:32,698 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:36,294 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:36,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:41:36,494 INFO L93 Difference]: Finished difference Result 6682 states and 9129 transitions. [2021-11-20 23:41:36,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:41:36,494 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 [2021-11-20 23:41:36,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:41:36,522 INFO L225 Difference]: With dead ends: 6682 [2021-11-20 23:41:36,522 INFO L226 Difference]: Without dead ends: 6680 [2021-11-20 23:41:36,527 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 [2021-11-20 23:41:36,528 INFO L933 BasicCegarLoop]: 3532 mSDtfsCounter, 2374 mSDsluCounter, 7102 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2376 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, 6.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:41:36,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2376 Valid, 9884 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1139 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2021-11-20 23:41:36,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6680 states. [2021-11-20 23:41:36,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6680 to 6577. [2021-11-20 23:41:36,968 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) [2021-11-20 23:41:36,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6577 states to 6577 states and 9023 transitions. [2021-11-20 23:41:37,001 INFO L78 Accepts]: Start accepts. Automaton has 6577 states and 9023 transitions. Word has length 89 [2021-11-20 23:41:37,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:41:37,002 INFO L470 AbstractCegarLoop]: Abstraction has 6577 states and 9023 transitions. [2021-11-20 23:41:37,002 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) [2021-11-20 23:41:37,002 INFO L276 IsEmpty]: Start isEmpty. Operand 6577 states and 9023 transitions. [2021-11-20 23:41:37,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-20 23:41:37,004 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:41:37,005 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] [2021-11-20 23:41:37,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 23:41:37,005 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)] === [2021-11-20 23:41:37,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:41:37,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1886003622, now seen corresponding path program 1 times [2021-11-20 23:41:37,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:41:37,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84839972] [2021-11-20 23:41:37,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:41:37,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:41:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:41:37,247 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:41:37,248 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:41:37,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84839972] [2021-11-20 23:41:37,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84839972] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:41:37,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:41:37,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:41:37,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889327030] [2021-11-20 23:41:37,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:41:37,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:41:37,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:41:37,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:41:37,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:41:37,250 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) [2021-11-20 23:41:39,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:41,653 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:43,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:41:43,930 INFO L93 Difference]: Finished difference Result 6577 states and 9023 transitions. [2021-11-20 23:41:43,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:41:43,931 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 [2021-11-20 23:41:43,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:41:43,958 INFO L225 Difference]: With dead ends: 6577 [2021-11-20 23:41:43,959 INFO L226 Difference]: Without dead ends: 6575 [2021-11-20 23:41:43,963 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 [2021-11-20 23:41:43,964 INFO L933 BasicCegarLoop]: 2844 mSDtfsCounter, 3188 mSDsluCounter, 3214 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3190 SdHoareTripleChecker+Valid, 5688 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:41:43,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3190 Valid, 5688 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 742 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2021-11-20 23:41:43,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6575 states. [2021-11-20 23:41:44,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6575 to 6575. [2021-11-20 23:41:44,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6575 states, 3563 states have (on average 1.2060061745719899) internal successors, (4297), 3740 states have internal predecessors, (4297), 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) [2021-11-20 23:41:44,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6575 states to 6575 states and 9021 transitions. [2021-11-20 23:41:44,472 INFO L78 Accepts]: Start accepts. Automaton has 6575 states and 9021 transitions. Word has length 94 [2021-11-20 23:41:44,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:41:44,472 INFO L470 AbstractCegarLoop]: Abstraction has 6575 states and 9021 transitions. [2021-11-20 23:41:44,473 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) [2021-11-20 23:41:44,473 INFO L276 IsEmpty]: Start isEmpty. Operand 6575 states and 9021 transitions. [2021-11-20 23:41:44,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-20 23:41:44,475 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:41:44,475 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] [2021-11-20 23:41:44,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 23:41:44,476 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)] === [2021-11-20 23:41:44,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:41:44,477 INFO L85 PathProgramCache]: Analyzing trace with hash 390590525, now seen corresponding path program 1 times [2021-11-20 23:41:44,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:41:44,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177569524] [2021-11-20 23:41:44,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:41:44,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:41:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:41:44,713 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:41:44,713 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:41:44,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177569524] [2021-11-20 23:41:44,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177569524] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:41:44,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:41:44,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:41:44,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979721390] [2021-11-20 23:41:44,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:41:44,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:41:44,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:41:44,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:41:44,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:41:44,717 INFO L87 Difference]: Start difference. First operand 6575 states and 9021 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) [2021-11-20 23:41:47,280 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:51,077 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:51,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:41:51,548 INFO L93 Difference]: Finished difference Result 6676 states and 9123 transitions. [2021-11-20 23:41:51,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:41:51,549 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 [2021-11-20 23:41:51,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:41:51,575 INFO L225 Difference]: With dead ends: 6676 [2021-11-20 23:41:51,576 INFO L226 Difference]: Without dead ends: 6674 [2021-11-20 23:41:51,580 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 [2021-11-20 23:41:51,581 INFO L933 BasicCegarLoop]: 3530 mSDtfsCounter, 2368 mSDsluCounter, 7100 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2370 SdHoareTripleChecker+Valid, 9878 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 [2021-11-20 23:41:51,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2370 Valid, 9878 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1142 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2021-11-20 23:41:51,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6674 states. [2021-11-20 23:41:51,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6674 to 6587. [2021-11-20 23:41:51,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6587 states, 3569 states have (on average 1.205659848697114) internal successors, (4303), 3746 states have internal predecessors, (4303), 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) [2021-11-20 23:41:51,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6587 states to 6587 states and 9035 transitions. [2021-11-20 23:41:51,970 INFO L78 Accepts]: Start accepts. Automaton has 6587 states and 9035 transitions. Word has length 99 [2021-11-20 23:41:51,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:41:51,971 INFO L470 AbstractCegarLoop]: Abstraction has 6587 states and 9035 transitions. [2021-11-20 23:41:51,971 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) [2021-11-20 23:41:51,971 INFO L276 IsEmpty]: Start isEmpty. Operand 6587 states and 9035 transitions. [2021-11-20 23:41:51,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-20 23:41:51,973 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:41:51,974 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] [2021-11-20 23:41:51,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 23:41:51,974 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)] === [2021-11-20 23:41:51,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:41:51,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1794728202, now seen corresponding path program 1 times [2021-11-20 23:41:51,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:41:51,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246535730] [2021-11-20 23:41:51,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:41:51,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:41:52,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:41:52,221 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:41:52,222 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:41:52,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246535730] [2021-11-20 23:41:52,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246535730] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:41:52,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:41:52,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:41:52,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088878502] [2021-11-20 23:41:52,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:41:52,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:41:52,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:41:52,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:41:52,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:41:52,226 INFO L87 Difference]: Start difference. First operand 6587 states and 9035 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) [2021-11-20 23:41:54,723 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:58,579 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:41:58,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:41:58,765 INFO L93 Difference]: Finished difference Result 6674 states and 9121 transitions. [2021-11-20 23:41:58,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:41:58,765 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 [2021-11-20 23:41:58,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:41:58,790 INFO L225 Difference]: With dead ends: 6674 [2021-11-20 23:41:58,790 INFO L226 Difference]: Without dead ends: 6672 [2021-11-20 23:41:58,795 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 [2021-11-20 23:41:58,795 INFO L933 BasicCegarLoop]: 3530 mSDtfsCounter, 2365 mSDsluCounter, 7098 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2367 SdHoareTripleChecker+Valid, 9878 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:41:58,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2367 Valid, 9878 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1139 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2021-11-20 23:41:58,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6672 states. [2021-11-20 23:41:59,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6672 to 6593. [2021-11-20 23:41:59,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6593 states, 3572 states have (on average 1.2054871220604704) internal successors, (4306), 3749 states have internal predecessors, (4306), 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) [2021-11-20 23:41:59,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6593 states to 6593 states and 9042 transitions. [2021-11-20 23:41:59,207 INFO L78 Accepts]: Start accepts. Automaton has 6593 states and 9042 transitions. Word has length 104 [2021-11-20 23:41:59,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:41:59,208 INFO L470 AbstractCegarLoop]: Abstraction has 6593 states and 9042 transitions. [2021-11-20 23:41:59,208 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) [2021-11-20 23:41:59,209 INFO L276 IsEmpty]: Start isEmpty. Operand 6593 states and 9042 transitions. [2021-11-20 23:41:59,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-20 23:41:59,217 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:41:59,217 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] [2021-11-20 23:41:59,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-20 23:41:59,218 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)] === [2021-11-20 23:41:59,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:41:59,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1965674856, now seen corresponding path program 1 times [2021-11-20 23:41:59,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:41:59,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773938897] [2021-11-20 23:41:59,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:41:59,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:41:59,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:41:59,497 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-11-20 23:41:59,497 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:41:59,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773938897] [2021-11-20 23:41:59,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773938897] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:41:59,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:41:59,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:41:59,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176108649] [2021-11-20 23:41:59,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:41:59,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:41:59,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:41:59,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:41:59,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:41:59,499 INFO L87 Difference]: Start difference. First operand 6593 states and 9042 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) [2021-11-20 23:42:02,208 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:42:05,451 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:42:06,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:42:06,055 INFO L93 Difference]: Finished difference Result 13264 states and 18280 transitions. [2021-11-20 23:42:06,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:42:06,055 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 [2021-11-20 23:42:06,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:42:06,080 INFO L225 Difference]: With dead ends: 13264 [2021-11-20 23:42:06,080 INFO L226 Difference]: Without dead ends: 6791 [2021-11-20 23:42:06,104 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 [2021-11-20 23:42:06,106 INFO L933 BasicCegarLoop]: 2867 mSDtfsCounter, 99 mSDsluCounter, 6420 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 51 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 8549 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 [2021-11-20 23:42:06,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 8549 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1120 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2021-11-20 23:42:06,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6791 states. [2021-11-20 23:42:06,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6791 to 6791. [2021-11-20 23:42:06,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6791 states, 3692 states have (on average 1.2063921993499458) internal successors, (4454), 3869 states have internal predecessors, (4454), 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) [2021-11-20 23:42:06,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6791 states to 6791 states and 9340 transitions. [2021-11-20 23:42:06,437 INFO L78 Accepts]: Start accepts. Automaton has 6791 states and 9340 transitions. Word has length 123 [2021-11-20 23:42:06,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:42:06,438 INFO L470 AbstractCegarLoop]: Abstraction has 6791 states and 9340 transitions. [2021-11-20 23:42:06,438 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) [2021-11-20 23:42:06,438 INFO L276 IsEmpty]: Start isEmpty. Operand 6791 states and 9340 transitions. [2021-11-20 23:42:06,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-20 23:42:06,441 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:42:06,442 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] [2021-11-20 23:42:06,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-20 23:42:06,442 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)] === [2021-11-20 23:42:06,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:42:06,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1098989513, now seen corresponding path program 1 times [2021-11-20 23:42:06,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:42:06,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487132976] [2021-11-20 23:42:06,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:42:06,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:42:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:42:06,854 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-11-20 23:42:06,855 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:42:06,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487132976] [2021-11-20 23:42:06,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487132976] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:42:06,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:42:06,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 23:42:06,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768553691] [2021-11-20 23:42:06,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:42:06,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:42:06,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:42:06,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:42:06,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:42:06,858 INFO L87 Difference]: Start difference. First operand 6791 states and 9340 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) [2021-11-20 23:42:10,540 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:42:17,153 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:42:22,391 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:42:23,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:42:23,041 INFO L93 Difference]: Finished difference Result 9936 states and 13615 transitions. [2021-11-20 23:42:23,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 23:42:23,041 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 [2021-11-20 23:42:23,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:42:23,074 INFO L225 Difference]: With dead ends: 9936 [2021-11-20 23:42:23,075 INFO L226 Difference]: Without dead ends: 9934 [2021-11-20 23:42:23,081 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 [2021-11-20 23:42:23,082 INFO L933 BasicCegarLoop]: 4099 mSDtfsCounter, 2994 mSDsluCounter, 15216 mSDsCounter, 0 mSdLazyCounter, 3790 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2998 SdHoareTripleChecker+Valid, 17587 SdHoareTripleChecker+Invalid, 3795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3790 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:42:23,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2998 Valid, 17587 Invalid, 3795 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 3790 Invalid, 2 Unknown, 0 Unchecked, 15.7s Time] [2021-11-20 23:42:23,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9934 states. [2021-11-20 23:42:23,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9934 to 9748. [2021-11-20 23:42:23,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9748 states, 5300 states have (on average 1.2043396226415095) internal successors, (6383), 5540 states have internal predecessors, (6383), 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) [2021-11-20 23:42:23,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9748 states to 9748 states and 13410 transitions. [2021-11-20 23:42:23,576 INFO L78 Accepts]: Start accepts. Automaton has 9748 states and 13410 transitions. Word has length 127 [2021-11-20 23:42:23,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:42:23,576 INFO L470 AbstractCegarLoop]: Abstraction has 9748 states and 13410 transitions. [2021-11-20 23:42:23,576 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) [2021-11-20 23:42:23,576 INFO L276 IsEmpty]: Start isEmpty. Operand 9748 states and 13410 transitions. [2021-11-20 23:42:23,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-20 23:42:23,579 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:42:23,579 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] [2021-11-20 23:42:23,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-20 23:42:23,579 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)] === [2021-11-20 23:42:23,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:42:23,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1788669281, now seen corresponding path program 1 times [2021-11-20 23:42:23,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:42:23,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969199420] [2021-11-20 23:42:23,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:42:23,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:42:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:42:23,812 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:42:23,812 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:42:23,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969199420] [2021-11-20 23:42:23,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969199420] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:42:23,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:42:23,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:42:23,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667522516] [2021-11-20 23:42:23,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:42:23,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:42:23,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:42:23,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:42:23,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:42:23,815 INFO L87 Difference]: Start difference. First operand 9748 states and 13410 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) [2021-11-20 23:42:26,536 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:42:31,634 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:42:31,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:42:31,895 INFO L93 Difference]: Finished difference Result 9825 states and 13486 transitions. [2021-11-20 23:42:31,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:42:31,896 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 [2021-11-20 23:42:31,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:42:31,922 INFO L225 Difference]: With dead ends: 9825 [2021-11-20 23:42:31,922 INFO L226 Difference]: Without dead ends: 9823 [2021-11-20 23:42:31,927 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 [2021-11-20 23:42:31,928 INFO L933 BasicCegarLoop]: 3530 mSDtfsCounter, 2360 mSDsluCounter, 7100 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2362 SdHoareTripleChecker+Valid, 9878 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:42:31,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2362 Valid, 9878 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1141 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2021-11-20 23:42:31,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9823 states. [2021-11-20 23:42:32,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9823 to 9754. [2021-11-20 23:42:32,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9754 states, 5303 states have (on average 1.2042240241372808) internal successors, (6386), 5543 states have internal predecessors, (6386), 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) [2021-11-20 23:42:32,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9754 states to 9754 states and 13417 transitions. [2021-11-20 23:42:32,372 INFO L78 Accepts]: Start accepts. Automaton has 9754 states and 13417 transitions. Word has length 109 [2021-11-20 23:42:32,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:42:32,373 INFO L470 AbstractCegarLoop]: Abstraction has 9754 states and 13417 transitions. [2021-11-20 23:42:32,373 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) [2021-11-20 23:42:32,373 INFO L276 IsEmpty]: Start isEmpty. Operand 9754 states and 13417 transitions. [2021-11-20 23:42:32,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-20 23:42:32,376 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:42:32,376 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] [2021-11-20 23:42:32,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-20 23:42:32,376 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)] === [2021-11-20 23:42:32,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:42:32,377 INFO L85 PathProgramCache]: Analyzing trace with hash 718844778, now seen corresponding path program 1 times [2021-11-20 23:42:32,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:42:32,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897561662] [2021-11-20 23:42:32,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:42:32,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:42:32,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:42:32,710 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-11-20 23:42:32,710 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:42:32,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897561662] [2021-11-20 23:42:32,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897561662] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:42:32,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:42:32,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:42:32,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978219177] [2021-11-20 23:42:32,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:42:32,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:42:32,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:42:32,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:42:32,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:42:32,712 INFO L87 Difference]: Start difference. First operand 9754 states and 13417 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) [2021-11-20 23:42:35,087 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:42:38,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:42:38,437 INFO L93 Difference]: Finished difference Result 19451 states and 26810 transitions. [2021-11-20 23:42:38,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:42:38,438 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 [2021-11-20 23:42:38,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:42:38,468 INFO L225 Difference]: With dead ends: 19451 [2021-11-20 23:42:38,468 INFO L226 Difference]: Without dead ends: 9817 [2021-11-20 23:42:38,498 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 [2021-11-20 23:42:38,499 INFO L933 BasicCegarLoop]: 3531 mSDtfsCounter, 2329 mSDsluCounter, 3186 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2329 SdHoareTripleChecker+Valid, 6349 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:42:38,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2329 Valid, 6349 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 756 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2021-11-20 23:42:38,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9817 states. [2021-11-20 23:42:39,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9817 to 9750. [2021-11-20 23:42:39,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9750 states, 5299 states have (on average 1.2036233251556898) internal successors, (6378), 5539 states have internal predecessors, (6378), 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) [2021-11-20 23:42:39,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9750 states to 9750 states and 13409 transitions. [2021-11-20 23:42:39,063 INFO L78 Accepts]: Start accepts. Automaton has 9750 states and 13409 transitions. Word has length 130 [2021-11-20 23:42:39,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:42:39,063 INFO L470 AbstractCegarLoop]: Abstraction has 9750 states and 13409 transitions. [2021-11-20 23:42:39,064 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) [2021-11-20 23:42:39,064 INFO L276 IsEmpty]: Start isEmpty. Operand 9750 states and 13409 transitions. [2021-11-20 23:42:39,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-20 23:42:39,066 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:42:39,067 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] [2021-11-20 23:42:39,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-20 23:42:39,067 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)] === [2021-11-20 23:42:39,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:42:39,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1473775735, now seen corresponding path program 1 times [2021-11-20 23:42:39,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:42:39,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585475695] [2021-11-20 23:42:39,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:42:39,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:42:39,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:42:39,301 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-11-20 23:42:39,301 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:42:39,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585475695] [2021-11-20 23:42:39,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585475695] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:42:39,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:42:39,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:42:39,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867465858] [2021-11-20 23:42:39,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:42:39,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:42:39,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:42:39,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:42:39,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:42:39,304 INFO L87 Difference]: Start difference. First operand 9750 states and 13409 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) [2021-11-20 23:42:41,880 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:42:44,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:42:44,347 INFO L93 Difference]: Finished difference Result 19395 states and 26790 transitions. [2021-11-20 23:42:44,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:42:44,348 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 [2021-11-20 23:42:44,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:42:44,391 INFO L225 Difference]: With dead ends: 19395 [2021-11-20 23:42:44,391 INFO L226 Difference]: Without dead ends: 9765 [2021-11-20 23:42:44,430 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 [2021-11-20 23:42:44,431 INFO L933 BasicCegarLoop]: 2845 mSDtfsCounter, 1 mSDsluCounter, 3211 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5686 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:42:44,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 5686 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 746 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2021-11-20 23:42:44,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9765 states. [2021-11-20 23:42:44,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9765 to 9755. [2021-11-20 23:42:44,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9755 states, 5304 states have (on average 1.2034313725490196) internal successors, (6383), 5544 states have internal predecessors, (6383), 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) [2021-11-20 23:42:44,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9755 states to 9755 states and 13414 transitions. [2021-11-20 23:42:44,980 INFO L78 Accepts]: Start accepts. Automaton has 9755 states and 13414 transitions. Word has length 135 [2021-11-20 23:42:44,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:42:44,981 INFO L470 AbstractCegarLoop]: Abstraction has 9755 states and 13414 transitions. [2021-11-20 23:42:44,981 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) [2021-11-20 23:42:44,981 INFO L276 IsEmpty]: Start isEmpty. Operand 9755 states and 13414 transitions. [2021-11-20 23:42:44,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-20 23:42:44,982 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:42:44,983 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] [2021-11-20 23:42:44,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-20 23:42:44,983 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)] === [2021-11-20 23:42:44,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:42:44,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1896628475, now seen corresponding path program 1 times [2021-11-20 23:42:44,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:42:44,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413795701] [2021-11-20 23:42:44,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:42:44,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:42:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:42:45,217 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-20 23:42:45,217 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:42:45,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413795701] [2021-11-20 23:42:45,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413795701] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:42:45,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:42:45,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:42:45,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948270995] [2021-11-20 23:42:45,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:42:45,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:42:45,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:42:45,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:42:45,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:42:45,219 INFO L87 Difference]: Start difference. First operand 9755 states and 13414 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) [2021-11-20 23:42:47,816 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:42:51,775 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:42:54,082 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:42:54,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:42:54,345 INFO L93 Difference]: Finished difference Result 9822 states and 13480 transitions. [2021-11-20 23:42:54,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:42:54,346 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 [2021-11-20 23:42:54,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:42:54,373 INFO L225 Difference]: With dead ends: 9822 [2021-11-20 23:42:54,373 INFO L226 Difference]: Without dead ends: 9820 [2021-11-20 23:42:54,378 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 [2021-11-20 23:42:54,379 INFO L933 BasicCegarLoop]: 3530 mSDtfsCounter, 2352 mSDsluCounter, 7100 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2354 SdHoareTripleChecker+Valid, 9878 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:42:54,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2354 Valid, 9878 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1142 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2021-11-20 23:42:54,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9820 states. [2021-11-20 23:42:54,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9820 to 9761. [2021-11-20 23:42:54,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9761 states, 5307 states have (on average 1.2033163745995854) internal successors, (6386), 5547 states have internal predecessors, (6386), 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) [2021-11-20 23:42:54,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9761 states to 9761 states and 13421 transitions. [2021-11-20 23:42:54,915 INFO L78 Accepts]: Start accepts. Automaton has 9761 states and 13421 transitions. Word has length 114 [2021-11-20 23:42:54,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:42:54,916 INFO L470 AbstractCegarLoop]: Abstraction has 9761 states and 13421 transitions. [2021-11-20 23:42:54,916 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) [2021-11-20 23:42:54,916 INFO L276 IsEmpty]: Start isEmpty. Operand 9761 states and 13421 transitions. [2021-11-20 23:42:54,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-20 23:42:54,919 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:42:54,919 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] [2021-11-20 23:42:54,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-20 23:42:54,920 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)] === [2021-11-20 23:42:54,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:42:54,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1907854655, now seen corresponding path program 1 times [2021-11-20 23:42:54,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:42:54,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943430659] [2021-11-20 23:42:54,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:42:54,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:42:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:42:55,142 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-20 23:42:55,142 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:42:55,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943430659] [2021-11-20 23:42:55,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943430659] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:42:55,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321036590] [2021-11-20 23:42:55,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:42:55,143 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:42:55,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:42:55,147 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:42:55,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db190b7f-99a5-4d8b-ae3f-e35b453e93c9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 23:42:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:42:56,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 5226 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 23:42:56,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:42:56,765 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-20 23:42:56,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:42:57,110 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-20 23:42:57,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321036590] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:42:57,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1904446095] [2021-11-20 23:42:57,138 INFO L159 IcfgInterpreter]: Started Sifa with 96 locations of interest [2021-11-20 23:42:57,138 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:42:57,147 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:42:57,152 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:42:57,153 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:43:24,122 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 [2021-11-20 23:44:38,075 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 [2021-11-20 23:44:57,630 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 [2021-11-20 23:45:11,573 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 [2021-11-20 23:46:12,681 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 [2021-11-20 23:46:28,206 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 [2021-11-20 23:48:18,844 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