./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/bin/utaipan-gh47qXpMRh --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 6fbcf05da5228307460c10a1ab2d8431ff74359811f7e2c9b55e8eaa9db8f14c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 08:44:45,999 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:44:46,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:44:46,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:44:46,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:44:46,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:44:46,016 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:44:46,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:44:46,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:44:46,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:44:46,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:44:46,020 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:44:46,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:44:46,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:44:46,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:44:46,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:44:46,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:44:46,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:44:46,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:44:46,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:44:46,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:44:46,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:44:46,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:44:46,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:44:46,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:44:46,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:44:46,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:44:46,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:44:46,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:44:46,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:44:46,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:44:46,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:44:46,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:44:46,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:44:46,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:44:46,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:44:46,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:44:46,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:44:46,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:44:46,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:44:46,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:44:46,039 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 08:44:46,059 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:44:46,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:44:46,067 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:44:46,067 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:44:46,067 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:44:46,068 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:44:46,068 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:44:46,068 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:44:46,068 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:44:46,069 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:44:46,069 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:44:46,069 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:44:46,069 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:44:46,069 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:44:46,070 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:44:46,070 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:44:46,070 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:44:46,070 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:44:46,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:44:46,071 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:44:46,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:44:46,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:44:46,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:44:46,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:44:46,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:44:46,072 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:44:46,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:44:46,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:44:46,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:44:46,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:44:46,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:44:46,074 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:44:46,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:44:46,074 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:44:46,074 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:44:46,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:44:46,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:44:46,075 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:44:46,075 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fbcf05da5228307460c10a1ab2d8431ff74359811f7e2c9b55e8eaa9db8f14c [2022-12-14 08:44:46,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:44:46,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:44:46,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:44:46,266 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:44:46,266 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:44:46,267 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i [2022-12-14 08:44:48,843 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:44:49,187 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:44:49,188 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i [2022-12-14 08:44:49,220 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/bin/utaipan-gh47qXpMRh/data/8534e43bf/31e62c57973d4bd0b944efe76c498bf1/FLAG139c3a1d5 [2022-12-14 08:44:49,424 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/bin/utaipan-gh47qXpMRh/data/8534e43bf/31e62c57973d4bd0b944efe76c498bf1 [2022-12-14 08:44:49,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:44:49,429 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:44:49,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:44:49,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:44:49,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:44:49,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:44:49" (1/1) ... [2022-12-14 08:44:49,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e4d4a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:49, skipping insertion in model container [2022-12-14 08:44:49,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:44:49" (1/1) ... [2022-12-14 08:44:49,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:44:49,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:44:50,185 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 08:44:50,277 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 08:44:50,286 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-14 08:44:50,292 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 08:44:50,300 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-14 08:44:50,306 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 08:44:50,327 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 08:44:50,353 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 08:44:50,354 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 08:44:50,355 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 08:44:50,355 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 08:44:50,358 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 08:44:50,358 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 08:44:50,359 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 08:44:50,359 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-14 08:44:50,473 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:44:50,474 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 08:44:50,480 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:50,482 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:50,484 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:50,484 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:50,485 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:50,486 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 08:44:50,491 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:50,491 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:50,492 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:50,494 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:50,496 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:50,498 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:50,499 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:50,502 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:50,503 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:50,504 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:50,507 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 08:44:50,508 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 08:44:50,508 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 08:44:50,514 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:44:50,514 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:44:50,514 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:44:50,515 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:44:50,515 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:44:50,515 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:44:50,520 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:44:50,521 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:44:50,521 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:44:50,522 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-12-14 08:44:50,522 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:44:50,522 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 08:44:50,523 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 08:44:50,524 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 08:44:50,524 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 08:44:50,525 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:44:50,527 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:44:50,527 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:50,529 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:50,529 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 08:44:50,534 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:50,539 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 08:44:50,540 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 08:44:50,541 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 08:44:50,541 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 08:44:50,544 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:50,550 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 08:44:50,551 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 08:44:50,551 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 08:44:50,551 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 08:44:50,552 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:50,561 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-12-14 08:44:50,561 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:50,562 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:50,563 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 08:44:50,569 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:50,570 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 08:44:50,583 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 08:44:50,583 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 08:44:50,584 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 08:44:50,584 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 08:44:50,585 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 08:44:50,585 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 08:44:50,590 WARN L623 FunctionHandler]: Unknown extern function usb_register_dev [2022-12-14 08:44:50,591 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 08:44:50,591 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 08:44:50,596 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-12-14 08:44:50,596 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 08:44:50,601 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:50,604 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:50,604 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:50,613 WARN L623 FunctionHandler]: Unknown extern function usb_deregister_dev [2022-12-14 08:44:50,614 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 08:44:50,614 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 08:44:50,615 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 08:44:50,617 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:50,623 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:50,625 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 08:44:50,625 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 08:44:50,630 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:50,635 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:50,640 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 08:44:50,641 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 08:44:50,738 WARN L623 FunctionHandler]: Unknown extern function noop_llseek [2022-12-14 08:44:50,747 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 08:44:50,754 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 08:44:50,756 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 08:44:50,756 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 08:44:50,758 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 08:44:50,760 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 08:44:50,761 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 08:44:50,762 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 08:44:51,048 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 08:44:51,185 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 08:44:51,515 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307309,307322] [2022-12-14 08:44:51,518 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307454,307467] [2022-12-14 08:44:51,518 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307600,307613] [2022-12-14 08:44:51,519 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307765,307778] [2022-12-14 08:44:51,519 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307923,307936] [2022-12-14 08:44:51,519 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308081,308094] [2022-12-14 08:44:51,520 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308239,308252] [2022-12-14 08:44:51,520 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308399,308412] [2022-12-14 08:44:51,520 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308558,308571] [2022-12-14 08:44:51,520 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308697,308710] [2022-12-14 08:44:51,521 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308839,308852] [2022-12-14 08:44:51,521 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308988,309001] [2022-12-14 08:44:51,521 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309127,309140] [2022-12-14 08:44:51,521 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309282,309295] [2022-12-14 08:44:51,522 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309442,309455] [2022-12-14 08:44:51,528 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309593,309606] [2022-12-14 08:44:51,529 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309744,309757] [2022-12-14 08:44:51,529 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309896,309909] [2022-12-14 08:44:51,529 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310045,310058] [2022-12-14 08:44:51,530 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310193,310206] [2022-12-14 08:44:51,530 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310350,310363] [2022-12-14 08:44:51,530 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310499,310512] [2022-12-14 08:44:51,531 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310655,310668] [2022-12-14 08:44:51,531 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310808,310821] [2022-12-14 08:44:51,531 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310954,310967] [2022-12-14 08:44:51,532 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311097,311110] [2022-12-14 08:44:51,532 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311249,311262] [2022-12-14 08:44:51,532 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311395,311408] [2022-12-14 08:44:51,533 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311540,311553] [2022-12-14 08:44:51,533 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311694,311707] [2022-12-14 08:44:51,533 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311845,311858] [2022-12-14 08:44:51,534 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312000,312013] [2022-12-14 08:44:51,534 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312152,312165] [2022-12-14 08:44:51,534 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312307,312320] [2022-12-14 08:44:51,535 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312471,312484] [2022-12-14 08:44:51,535 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312627,312640] [2022-12-14 08:44:51,535 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312791,312804] [2022-12-14 08:44:51,536 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312933,312946] [2022-12-14 08:44:51,536 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313091,313104] [2022-12-14 08:44:51,536 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313258,313271] [2022-12-14 08:44:51,536 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313417,313430] [2022-12-14 08:44:51,537 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313576,313589] [2022-12-14 08:44:51,537 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313725,313738] [2022-12-14 08:44:51,537 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313872,313885] [2022-12-14 08:44:51,537 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314011,314024] [2022-12-14 08:44:51,538 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314174,314187] [2022-12-14 08:44:51,538 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314340,314353] [2022-12-14 08:44:51,538 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314504,314517] [2022-12-14 08:44:51,538 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314669,314682] [2022-12-14 08:44:51,539 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314834,314847] [2022-12-14 08:44:51,539 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315000,315013] [2022-12-14 08:44:51,539 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315165,315178] [2022-12-14 08:44:51,539 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315332,315345] [2022-12-14 08:44:51,540 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315492,315505] [2022-12-14 08:44:51,540 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315654,315667] [2022-12-14 08:44:51,540 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315813,315826] [2022-12-14 08:44:51,540 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315959,315972] [2022-12-14 08:44:51,541 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316102,316115] [2022-12-14 08:44:51,541 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316246,316259] [2022-12-14 08:44:51,541 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316389,316402] [2022-12-14 08:44:51,541 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316533,316546] [2022-12-14 08:44:51,542 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316674,316687] [2022-12-14 08:44:51,542 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316812,316825] [2022-12-14 08:44:51,542 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316970,316983] [2022-12-14 08:44:51,542 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317129,317142] [2022-12-14 08:44:51,542 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317285,317298] [2022-12-14 08:44:51,543 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317434,317447] [2022-12-14 08:44:51,543 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317586,317599] [2022-12-14 08:44:51,543 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317737,317750] [2022-12-14 08:44:51,543 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317886,317899] [2022-12-14 08:44:51,544 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318038,318051] [2022-12-14 08:44:51,544 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318186,318199] [2022-12-14 08:44:51,544 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318339,318352] [2022-12-14 08:44:51,544 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318490,318503] [2022-12-14 08:44:51,545 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318640,318653] [2022-12-14 08:44:51,545 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318787,318800] [2022-12-14 08:44:51,545 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318938,318951] [2022-12-14 08:44:51,545 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319089,319102] [2022-12-14 08:44:51,545 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319237,319250] [2022-12-14 08:44:51,546 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319403,319416] [2022-12-14 08:44:51,546 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319572,319585] [2022-12-14 08:44:51,546 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319739,319752] [2022-12-14 08:44:51,546 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319907,319920] [2022-12-14 08:44:51,547 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320057,320070] [2022-12-14 08:44:51,547 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320204,320217] [2022-12-14 08:44:51,547 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320365,320378] [2022-12-14 08:44:51,547 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320535,320548] [2022-12-14 08:44:51,547 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320697,320710] [2022-12-14 08:44:51,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:44:51,572 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:44:51,622 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 08:44:51,622 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 08:44:51,623 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-14 08:44:51,623 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 08:44:51,623 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-14 08:44:51,624 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 08:44:51,624 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 08:44:51,625 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 08:44:51,625 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 08:44:51,626 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 08:44:51,626 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 08:44:51,626 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 08:44:51,626 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 08:44:51,627 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 08:44:51,627 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-14 08:44:51,636 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:44:51,636 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 08:44:51,638 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:51,639 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:51,640 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:51,640 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:51,641 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:51,641 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 08:44:51,643 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:51,643 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:51,643 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:51,644 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:51,645 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:51,646 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:51,647 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:51,648 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:51,649 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:51,649 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:51,649 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 08:44:51,650 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 08:44:51,650 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 08:44:51,650 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:44:51,650 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:44:51,650 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:44:51,650 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:44:51,650 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:44:51,651 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:44:51,652 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:44:51,652 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:44:51,652 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:44:51,653 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-12-14 08:44:51,653 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:44:51,653 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 08:44:51,653 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 08:44:51,654 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 08:44:51,654 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 08:44:51,654 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:44:51,655 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:44:51,655 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:51,656 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:51,656 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 08:44:51,657 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:51,659 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 08:44:51,659 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 08:44:51,660 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 08:44:51,660 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 08:44:51,661 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:51,663 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 08:44:51,663 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 08:44:51,664 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 08:44:51,664 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 08:44:51,664 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:51,666 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-12-14 08:44:51,666 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:51,667 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:51,667 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 08:44:51,669 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:51,670 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 08:44:51,672 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 08:44:51,673 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 08:44:51,673 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 08:44:51,673 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 08:44:51,673 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 08:44:51,674 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 08:44:51,676 WARN L623 FunctionHandler]: Unknown extern function usb_register_dev [2022-12-14 08:44:51,676 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 08:44:51,677 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 08:44:51,677 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-12-14 08:44:51,678 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 08:44:51,678 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:51,679 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:51,680 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:51,681 WARN L623 FunctionHandler]: Unknown extern function usb_deregister_dev [2022-12-14 08:44:51,682 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 08:44:51,682 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 08:44:51,682 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 08:44:51,683 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:51,684 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:51,685 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 08:44:51,686 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 08:44:51,686 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:44:51,687 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:44:51,688 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 08:44:51,688 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 08:44:51,693 WARN L623 FunctionHandler]: Unknown extern function noop_llseek [2022-12-14 08:44:51,698 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 08:44:51,699 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 08:44:51,700 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 08:44:51,700 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 08:44:51,701 WARN L623 FunctionHandler]: Unknown extern function __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 08:44:51,701 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 08:44:51,702 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 08:44:51,702 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 08:44:51,712 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 08:44:51,718 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 08:44:51,756 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307309,307322] [2022-12-14 08:44:51,757 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307454,307467] [2022-12-14 08:44:51,757 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307600,307613] [2022-12-14 08:44:51,757 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307765,307778] [2022-12-14 08:44:51,757 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[307923,307936] [2022-12-14 08:44:51,758 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308081,308094] [2022-12-14 08:44:51,758 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308239,308252] [2022-12-14 08:44:51,758 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308399,308412] [2022-12-14 08:44:51,758 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308558,308571] [2022-12-14 08:44:51,758 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308697,308710] [2022-12-14 08:44:51,759 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308839,308852] [2022-12-14 08:44:51,759 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[308988,309001] [2022-12-14 08:44:51,759 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309127,309140] [2022-12-14 08:44:51,759 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309282,309295] [2022-12-14 08:44:51,760 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309442,309455] [2022-12-14 08:44:51,760 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309593,309606] [2022-12-14 08:44:51,760 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309744,309757] [2022-12-14 08:44:51,760 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[309896,309909] [2022-12-14 08:44:51,760 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310045,310058] [2022-12-14 08:44:51,761 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310193,310206] [2022-12-14 08:44:51,761 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310350,310363] [2022-12-14 08:44:51,761 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310499,310512] [2022-12-14 08:44:51,761 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310655,310668] [2022-12-14 08:44:51,761 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310808,310821] [2022-12-14 08:44:51,762 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[310954,310967] [2022-12-14 08:44:51,762 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311097,311110] [2022-12-14 08:44:51,762 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311249,311262] [2022-12-14 08:44:51,762 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311395,311408] [2022-12-14 08:44:51,762 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311540,311553] [2022-12-14 08:44:51,763 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311694,311707] [2022-12-14 08:44:51,763 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[311845,311858] [2022-12-14 08:44:51,763 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312000,312013] [2022-12-14 08:44:51,763 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312152,312165] [2022-12-14 08:44:51,763 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312307,312320] [2022-12-14 08:44:51,764 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312471,312484] [2022-12-14 08:44:51,764 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312627,312640] [2022-12-14 08:44:51,764 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312791,312804] [2022-12-14 08:44:51,764 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[312933,312946] [2022-12-14 08:44:51,765 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313091,313104] [2022-12-14 08:44:51,765 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313258,313271] [2022-12-14 08:44:51,765 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313417,313430] [2022-12-14 08:44:51,765 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313576,313589] [2022-12-14 08:44:51,765 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313725,313738] [2022-12-14 08:44:51,766 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[313872,313885] [2022-12-14 08:44:51,766 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314011,314024] [2022-12-14 08:44:51,766 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314174,314187] [2022-12-14 08:44:51,766 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314340,314353] [2022-12-14 08:44:51,766 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314504,314517] [2022-12-14 08:44:51,767 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314669,314682] [2022-12-14 08:44:51,767 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[314834,314847] [2022-12-14 08:44:51,767 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315000,315013] [2022-12-14 08:44:51,767 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315165,315178] [2022-12-14 08:44:51,767 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315332,315345] [2022-12-14 08:44:51,768 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315492,315505] [2022-12-14 08:44:51,768 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315654,315667] [2022-12-14 08:44:51,768 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315813,315826] [2022-12-14 08:44:51,768 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[315959,315972] [2022-12-14 08:44:51,769 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316102,316115] [2022-12-14 08:44:51,769 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316246,316259] [2022-12-14 08:44:51,769 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316389,316402] [2022-12-14 08:44:51,769 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316533,316546] [2022-12-14 08:44:51,769 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316674,316687] [2022-12-14 08:44:51,770 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316812,316825] [2022-12-14 08:44:51,770 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[316970,316983] [2022-12-14 08:44:51,770 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317129,317142] [2022-12-14 08:44:51,770 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317285,317298] [2022-12-14 08:44:51,770 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317434,317447] [2022-12-14 08:44:51,771 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317586,317599] [2022-12-14 08:44:51,771 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317737,317750] [2022-12-14 08:44:51,771 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[317886,317899] [2022-12-14 08:44:51,771 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318038,318051] [2022-12-14 08:44:51,771 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318186,318199] [2022-12-14 08:44:51,772 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318339,318352] [2022-12-14 08:44:51,772 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318490,318503] [2022-12-14 08:44:51,772 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318640,318653] [2022-12-14 08:44:51,772 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318787,318800] [2022-12-14 08:44:51,773 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[318938,318951] [2022-12-14 08:44:51,773 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319089,319102] [2022-12-14 08:44:51,773 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319237,319250] [2022-12-14 08:44:51,773 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319403,319416] [2022-12-14 08:44:51,773 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319572,319585] [2022-12-14 08:44:51,774 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319739,319752] [2022-12-14 08:44:51,774 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[319907,319920] [2022-12-14 08:44:51,774 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320057,320070] [2022-12-14 08:44:51,774 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320204,320217] [2022-12-14 08:44:51,774 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320365,320378] [2022-12-14 08:44:51,775 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320535,320548] [2022-12-14 08:44:51,775 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i[320697,320710] [2022-12-14 08:44:51,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:44:51,863 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:44:51,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:51 WrapperNode [2022-12-14 08:44:51,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:44:51,864 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:44:51,865 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:44:51,865 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:44:51,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:51" (1/1) ... [2022-12-14 08:44:51,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:51" (1/1) ... [2022-12-14 08:44:52,021 INFO L138 Inliner]: procedures = 592, calls = 1907, calls flagged for inlining = 263, calls inlined = 169, statements flattened = 3305 [2022-12-14 08:44:52,022 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:44:52,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:44:52,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:44:52,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:44:52,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:51" (1/1) ... [2022-12-14 08:44:52,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:51" (1/1) ... [2022-12-14 08:44:52,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:51" (1/1) ... [2022-12-14 08:44:52,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:51" (1/1) ... [2022-12-14 08:44:52,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:51" (1/1) ... [2022-12-14 08:44:52,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:51" (1/1) ... [2022-12-14 08:44:52,132 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:51" (1/1) ... [2022-12-14 08:44:52,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:51" (1/1) ... [2022-12-14 08:44:52,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:44:52,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:44:52,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:44:52,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:44:52,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:51" (1/1) ... [2022-12-14 08:44:52,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:44:52,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:44:52,188 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:44:52,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:44:52,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-12-14 08:44:52,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-12-14 08:44:52,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 08:44:52,223 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 08:44:52,223 INFO L130 BoogieDeclarations]: Found specification of procedure recover_from_urb_loss [2022-12-14 08:44:52,223 INFO L138 BoogieDeclarations]: Found implementation of procedure recover_from_urb_loss [2022-12-14 08:44:52,224 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2022-12-14 08:44:52,224 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2022-12-14 08:44:52,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 08:44:52,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 08:44:52,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-12-14 08:44:52,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-12-14 08:44:52,224 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-12-14 08:44:52,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-12-14 08:44:52,224 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2022-12-14 08:44:52,224 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2022-12-14 08:44:52,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 08:44:52,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 08:44:52,224 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-12-14 08:44:52,224 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-12-14 08:44:52,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-12-14 08:44:52,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-12-14 08:44:52,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-12-14 08:44:52,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-12-14 08:44:52,224 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_ioctl [2022-12-14 08:44:52,224 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_ioctl [2022-12-14 08:44:52,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 08:44:52,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 08:44:52,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_iuspin_of_wdm_device [2022-12-14 08:44:52,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_iuspin_of_wdm_device [2022-12-14 08:44:52,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 08:44:52,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 08:44:52,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-12-14 08:44:52,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-12-14 08:44:52,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:44:52,225 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-12-14 08:44:52,225 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-12-14 08:44:52,225 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-12-14 08:44:52,225 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-12-14 08:44:52,225 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-14 08:44:52,225 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-14 08:44:52,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-12-14 08:44:52,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-12-14 08:44:52,225 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-12-14 08:44:52,225 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-12-14 08:44:52,225 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-12-14 08:44:52,225 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-12-14 08:44:52,225 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-12-14 08:44:52,225 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-12-14 08:44:52,225 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-12-14 08:44:52,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-12-14 08:44:52,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 08:44:52,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-12-14 08:44:52,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-12-14 08:44:52,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 08:44:52,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 08:44:52,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_111 [2022-12-14 08:44:52,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_111 [2022-12-14 08:44:52,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-12-14 08:44:52,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-12-14 08:44:52,226 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-12-14 08:44:52,226 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-12-14 08:44:52,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 08:44:52,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-12-14 08:44:52,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-12-14 08:44:52,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-12-14 08:44:52,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-12-14 08:44:52,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-12-14 08:44:52,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-12-14 08:44:52,226 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-12-14 08:44:52,226 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-12-14 08:44:52,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_wlock_of_wdm_device [2022-12-14 08:44:52,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_wlock_of_wdm_device [2022-12-14 08:44:52,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-12-14 08:44:52,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-12-14 08:44:52,227 INFO L130 BoogieDeclarations]: Found specification of procedure kill_urbs [2022-12-14 08:44:52,227 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_urbs [2022-12-14 08:44:52,227 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-12-14 08:44:52,227 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-12-14 08:44:52,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-12-14 08:44:52,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-12-14 08:44:52,227 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-12-14 08:44:52,227 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-12-14 08:44:52,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-12-14 08:44:52,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-12-14 08:44:52,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 08:44:52,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_iuspin_of_wdm_device [2022-12-14 08:44:52,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_iuspin_of_wdm_device [2022-12-14 08:44:52,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:44:52,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 08:44:52,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 08:44:52,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 08:44:52,227 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-12-14 08:44:52,227 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-12-14 08:44:52,227 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-14 08:44:52,227 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-14 08:44:52,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-12-14 08:44:52,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-12-14 08:44:52,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-12-14 08:44:52,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-12-14 08:44:52,228 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_find_device [2022-12-14 08:44:52,228 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_find_device [2022-12-14 08:44:52,228 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-14 08:44:52,228 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-14 08:44:52,228 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-12-14 08:44:52,228 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-12-14 08:44:52,228 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-12-14 08:44:52,228 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-12-14 08:44:52,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:44:52,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:44:52,228 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2022-12-14 08:44:52,228 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2022-12-14 08:44:52,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 08:44:52,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 08:44:52,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 08:44:52,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 08:44:52,228 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_create [2022-12-14 08:44:52,228 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_create [2022-12-14 08:44:52,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_128 [2022-12-14 08:44:52,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_128 [2022-12-14 08:44:52,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-12-14 08:44:52,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-12-14 08:44:52,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2022-12-14 08:44:52,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2022-12-14 08:44:52,229 INFO L130 BoogieDeclarations]: Found specification of procedure clear_wdm_read_flag [2022-12-14 08:44:52,229 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_wdm_read_flag [2022-12-14 08:44:52,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-12-14 08:44:52,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-12-14 08:44:52,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:44:52,229 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 08:44:52,229 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 08:44:52,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-12-14 08:44:52,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-12-14 08:44:52,229 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_disconnect [2022-12-14 08:44:52,229 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_disconnect [2022-12-14 08:44:52,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 08:44:52,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 08:44:52,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_wdm_mutex [2022-12-14 08:44:52,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_wdm_mutex [2022-12-14 08:44:52,229 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-12-14 08:44:52,229 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-12-14 08:44:52,229 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-12-14 08:44:52,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-12-14 08:44:52,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-12-14 08:44:52,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-12-14 08:44:52,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_rlock_of_wdm_device [2022-12-14 08:44:52,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_rlock_of_wdm_device [2022-12-14 08:44:52,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 08:44:52,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 08:44:52,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 08:44:52,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 08:44:52,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-12-14 08:44:52,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-12-14 08:44:52,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2022-12-14 08:44:52,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2022-12-14 08:44:52,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-12-14 08:44:52,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-12-14 08:44:52,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-12-14 08:44:52,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-12-14 08:44:52,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-12-14 08:44:52,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-12-14 08:44:52,230 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 08:44:52,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-12-14 08:44:52,230 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-12-14 08:44:52,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-12-14 08:44:52,230 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 08:44:52,230 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 08:44:52,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_wdm_mutex [2022-12-14 08:44:52,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_wdm_mutex [2022-12-14 08:44:52,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-12-14 08:44:52,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-12-14 08:44:52,231 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 08:44:52,231 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 08:44:52,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-12-14 08:44:52,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-12-14 08:44:52,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:44:52,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-12-14 08:44:52,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-12-14 08:44:52,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 08:44:52,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 08:44:52,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_95 [2022-12-14 08:44:52,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_95 [2022-12-14 08:44:52,231 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_resume [2022-12-14 08:44:52,231 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_resume [2022-12-14 08:44:52,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-12-14 08:44:52,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-12-14 08:44:52,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_96 [2022-12-14 08:44:52,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_96 [2022-12-14 08:44:52,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_rlock_of_wdm_device [2022-12-14 08:44:52,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_rlock_of_wdm_device [2022-12-14 08:44:52,231 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-12-14 08:44:52,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-12-14 08:44:52,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 08:44:52,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 08:44:52,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-12-14 08:44:52,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-12-14 08:44:52,232 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-12-14 08:44:52,232 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-12-14 08:44:52,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:44:52,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_wlock_of_wdm_device [2022-12-14 08:44:52,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_wlock_of_wdm_device [2022-12-14 08:44:52,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_110 [2022-12-14 08:44:52,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_110 [2022-12-14 08:44:52,640 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:44:52,642 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:44:52,742 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 08:44:56,627 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:44:56,966 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:44:56,966 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 08:44:56,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:44:56 BoogieIcfgContainer [2022-12-14 08:44:56,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:44:56,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:44:56,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:44:56,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:44:56,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:44:49" (1/3) ... [2022-12-14 08:44:56,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c3a2e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:44:56, skipping insertion in model container [2022-12-14 08:44:56,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:51" (2/3) ... [2022-12-14 08:44:56,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c3a2e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:44:56, skipping insertion in model container [2022-12-14 08:44:56,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:44:56" (3/3) ... [2022-12-14 08:44:56,977 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i [2022-12-14 08:44:56,991 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:44:56,991 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-12-14 08:44:57,053 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:44:57,058 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2bf42109, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:44:57,059 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2022-12-14 08:44:57,066 INFO L276 IsEmpty]: Start isEmpty. Operand has 1104 states, 595 states have (on average 1.289075630252101) internal successors, (767), 647 states have internal predecessors, (767), 384 states have call successors, (384), 95 states have call predecessors, (384), 94 states have return successors, (379), 377 states have call predecessors, (379), 379 states have call successors, (379) [2022-12-14 08:44:57,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-12-14 08:44:57,072 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:44:57,073 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:44:57,073 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:44:57,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:44:57,077 INFO L85 PathProgramCache]: Analyzing trace with hash -974123408, now seen corresponding path program 1 times [2022-12-14 08:44:57,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:44:57,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701207136] [2022-12-14 08:44:57,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:44:57,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:44:57,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:44:57,630 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:44:57,631 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:44:57,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701207136] [2022-12-14 08:44:57,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701207136] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:44:57,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:44:57,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:44:57,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002433177] [2022-12-14 08:44:57,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:44:57,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:44:57,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:44:57,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:44:57,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:44:57,667 INFO L87 Difference]: Start difference. First operand has 1104 states, 595 states have (on average 1.289075630252101) internal successors, (767), 647 states have internal predecessors, (767), 384 states have call successors, (384), 95 states have call predecessors, (384), 94 states have return successors, (379), 377 states have call predecessors, (379), 379 states have call successors, (379) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2022-12-14 08:45:00,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:45:00,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:45:00,777 INFO L93 Difference]: Finished difference Result 2240 states and 3239 transitions. [2022-12-14 08:45:00,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:45:00,779 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 51 [2022-12-14 08:45:00,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:45:00,794 INFO L225 Difference]: With dead ends: 2240 [2022-12-14 08:45:00,794 INFO L226 Difference]: Without dead ends: 1168 [2022-12-14 08:45:00,804 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:45:00,806 INFO L413 NwaCegarLoop]: 1349 mSDtfsCounter, 1454 mSDsluCounter, 1441 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 2790 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-14 08:45:00,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1457 Valid, 2790 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 343 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2022-12-14 08:45:00,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2022-12-14 08:45:00,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1158. [2022-12-14 08:45:00,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1158 states, 624 states have (on average 1.2243589743589745) internal successors, (764), 672 states have internal predecessors, (764), 398 states have call successors, (398), 108 states have call predecessors, (398), 107 states have return successors, (396), 393 states have call predecessors, (396), 396 states have call successors, (396) [2022-12-14 08:45:00,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1558 transitions. [2022-12-14 08:45:00,940 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1558 transitions. Word has length 51 [2022-12-14 08:45:00,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:45:00,940 INFO L495 AbstractCegarLoop]: Abstraction has 1158 states and 1558 transitions. [2022-12-14 08:45:00,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2022-12-14 08:45:00,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1558 transitions. [2022-12-14 08:45:00,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-14 08:45:00,942 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:45:00,942 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:45:00,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:45:00,943 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:45:00,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:45:00,943 INFO L85 PathProgramCache]: Analyzing trace with hash 564088391, now seen corresponding path program 1 times [2022-12-14 08:45:00,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:45:00,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323823446] [2022-12-14 08:45:00,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:45:00,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:45:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:45:01,171 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:45:01,171 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:45:01,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323823446] [2022-12-14 08:45:01,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323823446] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:45:01,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:45:01,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:45:01,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481720697] [2022-12-14 08:45:01,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:45:01,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:45:01,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:45:01,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:45:01,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:45:01,174 INFO L87 Difference]: Start difference. First operand 1158 states and 1558 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2022-12-14 08:45:04,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:45:04,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:45:04,205 INFO L93 Difference]: Finished difference Result 1168 states and 1565 transitions. [2022-12-14 08:45:04,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:45:04,205 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2022-12-14 08:45:04,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:45:04,211 INFO L225 Difference]: With dead ends: 1168 [2022-12-14 08:45:04,212 INFO L226 Difference]: Without dead ends: 1166 [2022-12-14 08:45:04,212 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:45:04,213 INFO L413 NwaCegarLoop]: 1331 mSDtfsCounter, 1434 mSDsluCounter, 1421 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1437 SdHoareTripleChecker+Valid, 2752 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-14 08:45:04,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1437 Valid, 2752 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2022-12-14 08:45:04,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1166 states. [2022-12-14 08:45:04,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1166 to 1156. [2022-12-14 08:45:04,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 623 states have (on average 1.2231139646869984) internal successors, (762), 670 states have internal predecessors, (762), 398 states have call successors, (398), 108 states have call predecessors, (398), 107 states have return successors, (396), 393 states have call predecessors, (396), 396 states have call successors, (396) [2022-12-14 08:45:04,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1556 transitions. [2022-12-14 08:45:04,268 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1556 transitions. Word has length 56 [2022-12-14 08:45:04,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:45:04,268 INFO L495 AbstractCegarLoop]: Abstraction has 1156 states and 1556 transitions. [2022-12-14 08:45:04,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2022-12-14 08:45:04,269 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1556 transitions. [2022-12-14 08:45:04,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 08:45:04,270 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:45:04,270 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:45:04,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:45:04,270 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:45:04,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:45:04,270 INFO L85 PathProgramCache]: Analyzing trace with hash -700454179, now seen corresponding path program 1 times [2022-12-14 08:45:04,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:45:04,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434716563] [2022-12-14 08:45:04,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:45:04,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:45:04,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:45:04,493 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:45:04,493 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:45:04,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434716563] [2022-12-14 08:45:04,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434716563] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:45:04,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:45:04,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:45:04,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748615525] [2022-12-14 08:45:04,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:45:04,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:45:04,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:45:04,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:45:04,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:45:04,495 INFO L87 Difference]: Start difference. First operand 1156 states and 1556 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2022-12-14 08:45:07,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:45:07,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:45:07,740 INFO L93 Difference]: Finished difference Result 1166 states and 1563 transitions. [2022-12-14 08:45:07,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:45:07,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2022-12-14 08:45:07,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:45:07,745 INFO L225 Difference]: With dead ends: 1166 [2022-12-14 08:45:07,745 INFO L226 Difference]: Without dead ends: 1164 [2022-12-14 08:45:07,745 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:45:07,746 INFO L413 NwaCegarLoop]: 1329 mSDtfsCounter, 1431 mSDsluCounter, 1419 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1434 SdHoareTripleChecker+Valid, 2748 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 08:45:07,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1434 Valid, 2748 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 08:45:07,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1164 states. [2022-12-14 08:45:07,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1164 to 1154. [2022-12-14 08:45:07,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1154 states, 622 states have (on average 1.2218649517684887) internal successors, (760), 668 states have internal predecessors, (760), 398 states have call successors, (398), 108 states have call predecessors, (398), 107 states have return successors, (396), 393 states have call predecessors, (396), 396 states have call successors, (396) [2022-12-14 08:45:07,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 1554 transitions. [2022-12-14 08:45:07,790 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 1554 transitions. Word has length 61 [2022-12-14 08:45:07,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:45:07,790 INFO L495 AbstractCegarLoop]: Abstraction has 1154 states and 1554 transitions. [2022-12-14 08:45:07,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2022-12-14 08:45:07,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 1554 transitions. [2022-12-14 08:45:07,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-14 08:45:07,791 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:45:07,791 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:45:07,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 08:45:07,792 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:45:07,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:45:07,792 INFO L85 PathProgramCache]: Analyzing trace with hash 426706805, now seen corresponding path program 1 times [2022-12-14 08:45:07,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:45:07,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431768965] [2022-12-14 08:45:07,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:45:07,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:45:07,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:45:08,008 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:45:08,008 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:45:08,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431768965] [2022-12-14 08:45:08,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431768965] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:45:08,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:45:08,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:45:08,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263209143] [2022-12-14 08:45:08,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:45:08,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:45:08,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:45:08,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:45:08,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:45:08,010 INFO L87 Difference]: Start difference. First operand 1154 states and 1554 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2022-12-14 08:45:11,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:45:11,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:45:11,222 INFO L93 Difference]: Finished difference Result 1164 states and 1561 transitions. [2022-12-14 08:45:11,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:45:11,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 66 [2022-12-14 08:45:11,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:45:11,228 INFO L225 Difference]: With dead ends: 1164 [2022-12-14 08:45:11,228 INFO L226 Difference]: Without dead ends: 1162 [2022-12-14 08:45:11,229 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:45:11,230 INFO L413 NwaCegarLoop]: 1327 mSDtfsCounter, 1428 mSDsluCounter, 1417 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1431 SdHoareTripleChecker+Valid, 2744 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:45:11,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1431 Valid, 2744 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 08:45:11,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2022-12-14 08:45:11,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1152. [2022-12-14 08:45:11,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 621 states have (on average 1.2206119162640903) internal successors, (758), 666 states have internal predecessors, (758), 398 states have call successors, (398), 108 states have call predecessors, (398), 107 states have return successors, (396), 393 states have call predecessors, (396), 396 states have call successors, (396) [2022-12-14 08:45:11,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1552 transitions. [2022-12-14 08:45:11,306 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1552 transitions. Word has length 66 [2022-12-14 08:45:11,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:45:11,306 INFO L495 AbstractCegarLoop]: Abstraction has 1152 states and 1552 transitions. [2022-12-14 08:45:11,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2022-12-14 08:45:11,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1552 transitions. [2022-12-14 08:45:11,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 08:45:11,309 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:45:11,309 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:45:11,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 08:45:11,309 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:45:11,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:45:11,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1159598615, now seen corresponding path program 1 times [2022-12-14 08:45:11,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:45:11,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324988517] [2022-12-14 08:45:11,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:45:11,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:45:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:45:11,570 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:45:11,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:45:11,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324988517] [2022-12-14 08:45:11,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324988517] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:45:11,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:45:11,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:45:11,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328561786] [2022-12-14 08:45:11,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:45:11,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:45:11,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:45:11,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:45:11,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:45:11,573 INFO L87 Difference]: Start difference. First operand 1152 states and 1552 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2022-12-14 08:45:14,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:45:14,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:45:14,779 INFO L93 Difference]: Finished difference Result 1162 states and 1559 transitions. [2022-12-14 08:45:14,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:45:14,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2022-12-14 08:45:14,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:45:14,784 INFO L225 Difference]: With dead ends: 1162 [2022-12-14 08:45:14,784 INFO L226 Difference]: Without dead ends: 1160 [2022-12-14 08:45:14,785 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:45:14,786 INFO L413 NwaCegarLoop]: 1325 mSDtfsCounter, 1425 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 2740 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:45:14,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1428 Valid, 2740 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 08:45:14,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2022-12-14 08:45:14,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1150. [2022-12-14 08:45:14,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 620 states have (on average 1.2193548387096773) internal successors, (756), 664 states have internal predecessors, (756), 398 states have call successors, (398), 108 states have call predecessors, (398), 107 states have return successors, (396), 393 states have call predecessors, (396), 396 states have call successors, (396) [2022-12-14 08:45:14,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 1550 transitions. [2022-12-14 08:45:14,862 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 1550 transitions. Word has length 71 [2022-12-14 08:45:14,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:45:14,862 INFO L495 AbstractCegarLoop]: Abstraction has 1150 states and 1550 transitions. [2022-12-14 08:45:14,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2022-12-14 08:45:14,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 1550 transitions. [2022-12-14 08:45:14,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 08:45:14,864 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:45:14,864 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:45:14,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 08:45:14,865 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:45:14,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:45:14,865 INFO L85 PathProgramCache]: Analyzing trace with hash 2099285651, now seen corresponding path program 1 times [2022-12-14 08:45:14,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:45:14,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874617252] [2022-12-14 08:45:14,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:45:14,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:45:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:45:15,160 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:45:15,160 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:45:15,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874617252] [2022-12-14 08:45:15,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874617252] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:45:15,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:45:15,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:45:15,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411280084] [2022-12-14 08:45:15,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:45:15,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:45:15,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:45:15,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:45:15,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:45:15,162 INFO L87 Difference]: Start difference. First operand 1150 states and 1550 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2022-12-14 08:45:18,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:45:18,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:45:18,344 INFO L93 Difference]: Finished difference Result 1160 states and 1557 transitions. [2022-12-14 08:45:18,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:45:18,344 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 76 [2022-12-14 08:45:18,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:45:18,347 INFO L225 Difference]: With dead ends: 1160 [2022-12-14 08:45:18,347 INFO L226 Difference]: Without dead ends: 1158 [2022-12-14 08:45:18,348 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:45:18,348 INFO L413 NwaCegarLoop]: 1323 mSDtfsCounter, 1422 mSDsluCounter, 1413 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1425 SdHoareTripleChecker+Valid, 2736 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:45:18,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1425 Valid, 2736 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 08:45:18,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2022-12-14 08:45:18,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1148. [2022-12-14 08:45:18,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1148 states, 619 states have (on average 1.2180936995153473) internal successors, (754), 662 states have internal predecessors, (754), 398 states have call successors, (398), 108 states have call predecessors, (398), 107 states have return successors, (396), 393 states have call predecessors, (396), 396 states have call successors, (396) [2022-12-14 08:45:18,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 1548 transitions. [2022-12-14 08:45:18,395 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 1548 transitions. Word has length 76 [2022-12-14 08:45:18,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:45:18,395 INFO L495 AbstractCegarLoop]: Abstraction has 1148 states and 1548 transitions. [2022-12-14 08:45:18,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2022-12-14 08:45:18,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 1548 transitions. [2022-12-14 08:45:18,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-14 08:45:18,396 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:45:18,396 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:45:18,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 08:45:18,396 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:45:18,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:45:18,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1546714771, now seen corresponding path program 1 times [2022-12-14 08:45:18,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:45:18,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996404683] [2022-12-14 08:45:18,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:45:18,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:45:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:45:18,688 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:45:18,688 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:45:18,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996404683] [2022-12-14 08:45:18,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996404683] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:45:18,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:45:18,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:45:18,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180907313] [2022-12-14 08:45:18,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:45:18,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:45:18,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:45:18,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:45:18,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:45:18,690 INFO L87 Difference]: Start difference. First operand 1148 states and 1548 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (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) [2022-12-14 08:45:21,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:45:22,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:45:22,038 INFO L93 Difference]: Finished difference Result 1158 states and 1555 transitions. [2022-12-14 08:45:22,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:45:22,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (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 81 [2022-12-14 08:45:22,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:45:22,042 INFO L225 Difference]: With dead ends: 1158 [2022-12-14 08:45:22,042 INFO L226 Difference]: Without dead ends: 1156 [2022-12-14 08:45:22,043 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:45:22,043 INFO L413 NwaCegarLoop]: 1321 mSDtfsCounter, 1419 mSDsluCounter, 1411 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 2732 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 08:45:22,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1422 Valid, 2732 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 08:45:22,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2022-12-14 08:45:22,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1146. [2022-12-14 08:45:22,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 618 states have (on average 1.2168284789644013) internal successors, (752), 660 states have internal predecessors, (752), 398 states have call successors, (398), 108 states have call predecessors, (398), 107 states have return successors, (396), 393 states have call predecessors, (396), 396 states have call successors, (396) [2022-12-14 08:45:22,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1546 transitions. [2022-12-14 08:45:22,093 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1546 transitions. Word has length 81 [2022-12-14 08:45:22,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:45:22,093 INFO L495 AbstractCegarLoop]: Abstraction has 1146 states and 1546 transitions. [2022-12-14 08:45:22,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (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) [2022-12-14 08:45:22,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1546 transitions. [2022-12-14 08:45:22,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 08:45:22,094 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:45:22,095 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:45:22,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 08:45:22,095 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:45:22,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:45:22,095 INFO L85 PathProgramCache]: Analyzing trace with hash -815410659, now seen corresponding path program 1 times [2022-12-14 08:45:22,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:45:22,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121434299] [2022-12-14 08:45:22,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:45:22,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:45:22,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:45:22,301 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:45:22,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:45:22,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121434299] [2022-12-14 08:45:22,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121434299] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:45:22,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:45:22,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:45:22,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360519106] [2022-12-14 08:45:22,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:45:22,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:45:22,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:45:22,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:45:22,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:45:22,303 INFO L87 Difference]: Start difference. First operand 1146 states and 1546 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (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) [2022-12-14 08:45:25,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:45:25,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:45:25,588 INFO L93 Difference]: Finished difference Result 1156 states and 1553 transitions. [2022-12-14 08:45:25,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:45:25,589 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (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 86 [2022-12-14 08:45:25,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:45:25,593 INFO L225 Difference]: With dead ends: 1156 [2022-12-14 08:45:25,593 INFO L226 Difference]: Without dead ends: 1154 [2022-12-14 08:45:25,593 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:45:25,594 INFO L413 NwaCegarLoop]: 1319 mSDtfsCounter, 1420 mSDsluCounter, 1405 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1423 SdHoareTripleChecker+Valid, 2724 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 08:45:25,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1423 Valid, 2724 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 08:45:25,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2022-12-14 08:45:25,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 1144. [2022-12-14 08:45:25,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 617 states have (on average 1.2155591572123177) internal successors, (750), 658 states have internal predecessors, (750), 398 states have call successors, (398), 108 states have call predecessors, (398), 107 states have return successors, (396), 393 states have call predecessors, (396), 396 states have call successors, (396) [2022-12-14 08:45:25,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1544 transitions. [2022-12-14 08:45:25,649 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1544 transitions. Word has length 86 [2022-12-14 08:45:25,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:45:25,649 INFO L495 AbstractCegarLoop]: Abstraction has 1144 states and 1544 transitions. [2022-12-14 08:45:25,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (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) [2022-12-14 08:45:25,650 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1544 transitions. [2022-12-14 08:45:25,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-14 08:45:25,651 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:45:25,651 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:45:25,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 08:45:25,651 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:45:25,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:45:25,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1925462496, now seen corresponding path program 1 times [2022-12-14 08:45:25,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:45:25,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421675072] [2022-12-14 08:45:25,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:45:25,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:45:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:45:25,845 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:45:25,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:45:25,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421675072] [2022-12-14 08:45:25,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421675072] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:45:25,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:45:25,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:45:25,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336882327] [2022-12-14 08:45:25,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:45:25,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:45:25,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:45:25,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:45:25,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:45:25,847 INFO L87 Difference]: Start difference. First operand 1144 states and 1544 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2022-12-14 08:45:29,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:45:29,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:45:29,245 INFO L93 Difference]: Finished difference Result 1154 states and 1551 transitions. [2022-12-14 08:45:29,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:45:29,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 88 [2022-12-14 08:45:29,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:45:29,249 INFO L225 Difference]: With dead ends: 1154 [2022-12-14 08:45:29,249 INFO L226 Difference]: Without dead ends: 1152 [2022-12-14 08:45:29,250 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:45:29,250 INFO L413 NwaCegarLoop]: 1317 mSDtfsCounter, 1412 mSDsluCounter, 1407 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1415 SdHoareTripleChecker+Valid, 2724 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 08:45:29,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1415 Valid, 2724 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 08:45:29,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2022-12-14 08:45:29,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1142. [2022-12-14 08:45:29,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 616 states have (on average 1.2142857142857142) internal successors, (748), 656 states have internal predecessors, (748), 398 states have call successors, (398), 108 states have call predecessors, (398), 107 states have return successors, (396), 393 states have call predecessors, (396), 396 states have call successors, (396) [2022-12-14 08:45:29,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1542 transitions. [2022-12-14 08:45:29,307 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1542 transitions. Word has length 88 [2022-12-14 08:45:29,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:45:29,307 INFO L495 AbstractCegarLoop]: Abstraction has 1142 states and 1542 transitions. [2022-12-14 08:45:29,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2022-12-14 08:45:29,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1542 transitions. [2022-12-14 08:45:29,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-12-14 08:45:29,308 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:45:29,309 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-12-14 08:45:29,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 08:45:29,309 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:45:29,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:45:29,309 INFO L85 PathProgramCache]: Analyzing trace with hash 44505222, now seen corresponding path program 1 times [2022-12-14 08:45:29,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:45:29,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808403821] [2022-12-14 08:45:29,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:45:29,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:45:29,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:45:29,530 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-12-14 08:45:29,530 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:45:29,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808403821] [2022-12-14 08:45:29,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808403821] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:45:29,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:45:29,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:45:29,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984545713] [2022-12-14 08:45:29,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:45:29,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:45:29,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:45:29,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:45:29,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:45:29,532 INFO L87 Difference]: Start difference. First operand 1142 states and 1542 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 08:45:32,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:45:32,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:45:32,282 INFO L93 Difference]: Finished difference Result 2074 states and 2783 transitions. [2022-12-14 08:45:32,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:45:32,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2022-12-14 08:45:32,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:45:32,286 INFO L225 Difference]: With dead ends: 2074 [2022-12-14 08:45:32,286 INFO L226 Difference]: Without dead ends: 1148 [2022-12-14 08:45:32,288 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:45:32,289 INFO L413 NwaCegarLoop]: 1313 mSDtfsCounter, 1431 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 1403 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 08:45:32,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1432 Valid, 1403 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 178 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 08:45:32,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2022-12-14 08:45:32,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 1138. [2022-12-14 08:45:32,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1138 states, 613 states have (on average 1.2120717781402937) internal successors, (743), 652 states have internal predecessors, (743), 398 states have call successors, (398), 108 states have call predecessors, (398), 107 states have return successors, (396), 393 states have call predecessors, (396), 396 states have call successors, (396) [2022-12-14 08:45:32,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 1537 transitions. [2022-12-14 08:45:32,364 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 1537 transitions. Word has length 120 [2022-12-14 08:45:32,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:45:32,364 INFO L495 AbstractCegarLoop]: Abstraction has 1138 states and 1537 transitions. [2022-12-14 08:45:32,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 08:45:32,364 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 1537 transitions. [2022-12-14 08:45:32,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 08:45:32,365 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:45:32,365 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:45:32,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 08:45:32,365 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:45:32,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:45:32,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1110044730, now seen corresponding path program 1 times [2022-12-14 08:45:32,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:45:32,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957084361] [2022-12-14 08:45:32,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:45:32,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:45:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:45:32,552 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:45:32,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:45:32,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957084361] [2022-12-14 08:45:32,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957084361] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:45:32,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:45:32,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:45:32,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667467642] [2022-12-14 08:45:32,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:45:32,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:45:32,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:45:32,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:45:32,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:45:32,554 INFO L87 Difference]: Start difference. First operand 1138 states and 1537 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2022-12-14 08:45:35,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:45:35,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:45:35,699 INFO L93 Difference]: Finished difference Result 1148 states and 1544 transitions. [2022-12-14 08:45:35,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:45:35,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 93 [2022-12-14 08:45:35,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:45:35,703 INFO L225 Difference]: With dead ends: 1148 [2022-12-14 08:45:35,703 INFO L226 Difference]: Without dead ends: 1146 [2022-12-14 08:45:35,703 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:45:35,704 INFO L413 NwaCegarLoop]: 1310 mSDtfsCounter, 1406 mSDsluCounter, 1400 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1409 SdHoareTripleChecker+Valid, 2710 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:45:35,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1409 Valid, 2710 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 08:45:35,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2022-12-14 08:45:35,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 1136. [2022-12-14 08:45:35,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 612 states have (on average 1.2107843137254901) internal successors, (741), 650 states have internal predecessors, (741), 398 states have call successors, (398), 108 states have call predecessors, (398), 107 states have return successors, (396), 393 states have call predecessors, (396), 396 states have call successors, (396) [2022-12-14 08:45:35,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1535 transitions. [2022-12-14 08:45:35,819 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1535 transitions. Word has length 93 [2022-12-14 08:45:35,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:45:35,819 INFO L495 AbstractCegarLoop]: Abstraction has 1136 states and 1535 transitions. [2022-12-14 08:45:35,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2022-12-14 08:45:35,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1535 transitions. [2022-12-14 08:45:35,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-12-14 08:45:35,821 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:45:35,821 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:45:35,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 08:45:35,822 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:45:35,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:45:35,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1417157828, now seen corresponding path program 1 times [2022-12-14 08:45:35,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:45:35,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369369525] [2022-12-14 08:45:35,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:45:35,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:45:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:45:36,189 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-12-14 08:45:36,189 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:45:36,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369369525] [2022-12-14 08:45:36,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369369525] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:45:36,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:45:36,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 08:45:36,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588542627] [2022-12-14 08:45:36,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:45:36,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 08:45:36,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:45:36,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 08:45:36,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:45:36,191 INFO L87 Difference]: Start difference. First operand 1136 states and 1535 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 08:45:39,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:45:40,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:45:40,046 INFO L93 Difference]: Finished difference Result 1318 states and 1716 transitions. [2022-12-14 08:45:40,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 08:45:40,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 117 [2022-12-14 08:45:40,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:45:40,051 INFO L225 Difference]: With dead ends: 1318 [2022-12-14 08:45:40,051 INFO L226 Difference]: Without dead ends: 1316 [2022-12-14 08:45:40,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 08:45:40,052 INFO L413 NwaCegarLoop]: 1390 mSDtfsCounter, 1251 mSDsluCounter, 3086 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 4476 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-12-14 08:45:40,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1257 Valid, 4476 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 596 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-12-14 08:45:40,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2022-12-14 08:45:40,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1298. [2022-12-14 08:45:40,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 703 states have (on average 1.20199146514936) internal successors, (845), 741 states have internal predecessors, (845), 430 states have call successors, (430), 147 states have call predecessors, (430), 146 states have return successors, (428), 425 states have call predecessors, (428), 428 states have call successors, (428) [2022-12-14 08:45:40,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1703 transitions. [2022-12-14 08:45:40,124 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1703 transitions. Word has length 117 [2022-12-14 08:45:40,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:45:40,125 INFO L495 AbstractCegarLoop]: Abstraction has 1298 states and 1703 transitions. [2022-12-14 08:45:40,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 08:45:40,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1703 transitions. [2022-12-14 08:45:40,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-12-14 08:45:40,126 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:45:40,126 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-12-14 08:45:40,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 08:45:40,126 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:45:40,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:45:40,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1454607746, now seen corresponding path program 1 times [2022-12-14 08:45:40,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:45:40,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473468406] [2022-12-14 08:45:40,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:45:40,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:45:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:45:40,321 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-12-14 08:45:40,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:45:40,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473468406] [2022-12-14 08:45:40,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473468406] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:45:40,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206418822] [2022-12-14 08:45:40,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:45:40,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:45:40,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:45:40,323 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:45:40,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 08:45:40,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:45:40,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 2293 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 08:45:40,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:45:40,883 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-12-14 08:45:40,883 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:45:40,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206418822] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:45:40,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 08:45:40,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-12-14 08:45:40,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025230895] [2022-12-14 08:45:40,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:45:40,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:45:40,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:45:40,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:45:40,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-14 08:45:40,885 INFO L87 Difference]: Start difference. First operand 1298 states and 1703 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 08:45:43,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:45:43,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:45:43,644 INFO L93 Difference]: Finished difference Result 2377 states and 3086 transitions. [2022-12-14 08:45:43,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:45:43,645 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 125 [2022-12-14 08:45:43,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:45:43,649 INFO L225 Difference]: With dead ends: 2377 [2022-12-14 08:45:43,649 INFO L226 Difference]: Without dead ends: 1326 [2022-12-14 08:45:43,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-14 08:45:43,652 INFO L413 NwaCegarLoop]: 1318 mSDtfsCounter, 1382 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 1457 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-14 08:45:43,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1383 Valid, 1457 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 191 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-12-14 08:45:43,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2022-12-14 08:45:43,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1314. [2022-12-14 08:45:43,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1314 states, 710 states have (on average 1.1971830985915493) internal successors, (850), 748 states have internal predecessors, (850), 434 states have call successors, (434), 153 states have call predecessors, (434), 152 states have return successors, (432), 428 states have call predecessors, (432), 432 states have call successors, (432) [2022-12-14 08:45:43,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1716 transitions. [2022-12-14 08:45:43,734 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1716 transitions. Word has length 125 [2022-12-14 08:45:43,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:45:43,734 INFO L495 AbstractCegarLoop]: Abstraction has 1314 states and 1716 transitions. [2022-12-14 08:45:43,734 INFO L496 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 08:45:43,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1716 transitions. [2022-12-14 08:45:43,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-14 08:45:43,735 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:45:43,735 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:45:43,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 08:45:43,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-14 08:45:43,936 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:45:43,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:45:43,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1248419372, now seen corresponding path program 1 times [2022-12-14 08:45:43,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:45:43,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494749712] [2022-12-14 08:45:43,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:45:43,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:45:43,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:45:44,140 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:45:44,141 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:45:44,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494749712] [2022-12-14 08:45:44,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494749712] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:45:44,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:45:44,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:45:44,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137255459] [2022-12-14 08:45:44,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:45:44,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:45:44,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:45:44,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:45:44,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:45:44,143 INFO L87 Difference]: Start difference. First operand 1314 states and 1716 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2022-12-14 08:45:47,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:45:47,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:45:47,415 INFO L93 Difference]: Finished difference Result 1324 states and 1723 transitions. [2022-12-14 08:45:47,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:45:47,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 98 [2022-12-14 08:45:47,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:45:47,419 INFO L225 Difference]: With dead ends: 1324 [2022-12-14 08:45:47,419 INFO L226 Difference]: Without dead ends: 1322 [2022-12-14 08:45:47,420 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:45:47,420 INFO L413 NwaCegarLoop]: 1303 mSDtfsCounter, 1398 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:45:47,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1401 Valid, 2696 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 08:45:47,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2022-12-14 08:45:47,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1312. [2022-12-14 08:45:47,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 709 states have (on average 1.1960507757404795) internal successors, (848), 746 states have internal predecessors, (848), 434 states have call successors, (434), 153 states have call predecessors, (434), 152 states have return successors, (432), 428 states have call predecessors, (432), 432 states have call successors, (432) [2022-12-14 08:45:47,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 1714 transitions. [2022-12-14 08:45:47,506 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 1714 transitions. Word has length 98 [2022-12-14 08:45:47,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:45:47,506 INFO L495 AbstractCegarLoop]: Abstraction has 1312 states and 1714 transitions. [2022-12-14 08:45:47,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2022-12-14 08:45:47,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1714 transitions. [2022-12-14 08:45:47,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-12-14 08:45:47,508 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:45:47,508 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-12-14 08:45:47,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 08:45:47,508 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:45:47,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:45:47,509 INFO L85 PathProgramCache]: Analyzing trace with hash -765434121, now seen corresponding path program 1 times [2022-12-14 08:45:47,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:45:47,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860043293] [2022-12-14 08:45:47,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:45:47,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:45:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:45:48,231 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-12-14 08:45:48,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:45:48,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860043293] [2022-12-14 08:45:48,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860043293] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:45:48,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:45:48,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 08:45:48,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151866458] [2022-12-14 08:45:48,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:45:48,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 08:45:48,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:45:48,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 08:45:48,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 08:45:48,233 INFO L87 Difference]: Start difference. First operand 1312 states and 1714 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 08:45:53,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:45:53,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:45:53,121 INFO L93 Difference]: Finished difference Result 1322 states and 1721 transitions. [2022-12-14 08:45:53,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 08:45:53,121 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 130 [2022-12-14 08:45:53,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:45:53,126 INFO L225 Difference]: With dead ends: 1322 [2022-12-14 08:45:53,126 INFO L226 Difference]: Without dead ends: 1320 [2022-12-14 08:45:53,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-14 08:45:53,127 INFO L413 NwaCegarLoop]: 1302 mSDtfsCounter, 1389 mSDsluCounter, 3251 mSDsCounter, 0 mSdLazyCounter, 1410 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1395 SdHoareTripleChecker+Valid, 4553 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1410 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-12-14 08:45:53,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1395 Valid, 4553 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1410 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-12-14 08:45:53,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2022-12-14 08:45:53,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1310. [2022-12-14 08:45:53,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1310 states, 708 states have (on average 1.1935028248587571) internal successors, (845), 744 states have internal predecessors, (845), 434 states have call successors, (434), 153 states have call predecessors, (434), 152 states have return successors, (432), 428 states have call predecessors, (432), 432 states have call successors, (432) [2022-12-14 08:45:53,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 1711 transitions. [2022-12-14 08:45:53,211 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 1711 transitions. Word has length 130 [2022-12-14 08:45:53,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:45:53,212 INFO L495 AbstractCegarLoop]: Abstraction has 1310 states and 1711 transitions. [2022-12-14 08:45:53,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 08:45:53,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 1711 transitions. [2022-12-14 08:45:53,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-14 08:45:53,213 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:45:53,213 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:45:53,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 08:45:53,213 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:45:53,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:45:53,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1802857878, now seen corresponding path program 1 times [2022-12-14 08:45:53,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:45:53,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492851039] [2022-12-14 08:45:53,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:45:53,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:45:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:45:53,438 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:45:53,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:45:53,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492851039] [2022-12-14 08:45:53,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492851039] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:45:53,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:45:53,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:45:53,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84425597] [2022-12-14 08:45:53,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:45:53,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:45:53,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:45:53,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:45:53,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:45:53,441 INFO L87 Difference]: Start difference. First operand 1310 states and 1711 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2022-12-14 08:45:56,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:45:56,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:45:56,796 INFO L93 Difference]: Finished difference Result 1320 states and 1718 transitions. [2022-12-14 08:45:56,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:45:56,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 103 [2022-12-14 08:45:56,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:45:56,801 INFO L225 Difference]: With dead ends: 1320 [2022-12-14 08:45:56,801 INFO L226 Difference]: Without dead ends: 1318 [2022-12-14 08:45:56,801 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:45:56,802 INFO L413 NwaCegarLoop]: 1299 mSDtfsCounter, 1393 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 2688 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 08:45:56,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1396 Valid, 2688 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 08:45:56,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2022-12-14 08:45:56,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1308. [2022-12-14 08:45:56,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1308 states, 707 states have (on average 1.1923620933521923) internal successors, (843), 742 states have internal predecessors, (843), 434 states have call successors, (434), 153 states have call predecessors, (434), 152 states have return successors, (432), 428 states have call predecessors, (432), 432 states have call successors, (432) [2022-12-14 08:45:56,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1308 states to 1308 states and 1709 transitions. [2022-12-14 08:45:56,889 INFO L78 Accepts]: Start accepts. Automaton has 1308 states and 1709 transitions. Word has length 103 [2022-12-14 08:45:56,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:45:56,890 INFO L495 AbstractCegarLoop]: Abstraction has 1308 states and 1709 transitions. [2022-12-14 08:45:56,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2022-12-14 08:45:56,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1308 states and 1709 transitions. [2022-12-14 08:45:56,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-12-14 08:45:56,891 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:45:56,891 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-12-14 08:45:56,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 08:45:56,891 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:45:56,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:45:56,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1801242888, now seen corresponding path program 1 times [2022-12-14 08:45:56,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:45:56,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121111308] [2022-12-14 08:45:56,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:45:56,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:45:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:45:57,067 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-12-14 08:45:57,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:45:57,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121111308] [2022-12-14 08:45:57,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121111308] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:45:57,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:45:57,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:45:57,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186900542] [2022-12-14 08:45:57,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:45:57,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:45:57,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:45:57,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:45:57,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:45:57,069 INFO L87 Difference]: Start difference. First operand 1308 states and 1709 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 08:45:59,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:45:59,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:45:59,863 INFO L93 Difference]: Finished difference Result 2558 states and 3356 transitions. [2022-12-14 08:45:59,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:45:59,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 136 [2022-12-14 08:45:59,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:45:59,868 INFO L225 Difference]: With dead ends: 2558 [2022-12-14 08:45:59,868 INFO L226 Difference]: Without dead ends: 1312 [2022-12-14 08:45:59,870 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:45:59,870 INFO L413 NwaCegarLoop]: 1295 mSDtfsCounter, 1384 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1385 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 08:45:59,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1385 Valid, 1385 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 178 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 08:45:59,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2022-12-14 08:45:59,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1302. [2022-12-14 08:45:59,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1302 states, 702 states have (on average 1.188034188034188) internal successors, (834), 736 states have internal predecessors, (834), 434 states have call successors, (434), 153 states have call predecessors, (434), 152 states have return successors, (432), 428 states have call predecessors, (432), 432 states have call successors, (432) [2022-12-14 08:45:59,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 1700 transitions. [2022-12-14 08:45:59,960 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 1700 transitions. Word has length 136 [2022-12-14 08:45:59,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:45:59,960 INFO L495 AbstractCegarLoop]: Abstraction has 1302 states and 1700 transitions. [2022-12-14 08:45:59,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 08:45:59,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 1700 transitions. [2022-12-14 08:45:59,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-12-14 08:45:59,961 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:45:59,961 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:45:59,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 08:45:59,961 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:45:59,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:45:59,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1666425459, now seen corresponding path program 1 times [2022-12-14 08:45:59,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:45:59,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071903229] [2022-12-14 08:45:59,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:45:59,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:45:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:46:00,125 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:46:00,125 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:46:00,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071903229] [2022-12-14 08:46:00,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071903229] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:46:00,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:46:00,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:46:00,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481005428] [2022-12-14 08:46:00,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:46:00,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:46:00,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:46:00,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:46:00,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:46:00,127 INFO L87 Difference]: Start difference. First operand 1302 states and 1700 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2022-12-14 08:46:03,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:46:03,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:46:03,640 INFO L93 Difference]: Finished difference Result 1312 states and 1707 transitions. [2022-12-14 08:46:03,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:46:03,640 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 108 [2022-12-14 08:46:03,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:46:03,645 INFO L225 Difference]: With dead ends: 1312 [2022-12-14 08:46:03,646 INFO L226 Difference]: Without dead ends: 1310 [2022-12-14 08:46:03,646 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:46:03,646 INFO L413 NwaCegarLoop]: 1292 mSDtfsCounter, 1385 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 2674 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 08:46:03,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 2674 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 08:46:03,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2022-12-14 08:46:03,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 1300. [2022-12-14 08:46:03,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1300 states, 701 states have (on average 1.1868758915834523) internal successors, (832), 734 states have internal predecessors, (832), 434 states have call successors, (434), 153 states have call predecessors, (434), 152 states have return successors, (432), 428 states have call predecessors, (432), 432 states have call successors, (432) [2022-12-14 08:46:03,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 1698 transitions. [2022-12-14 08:46:03,740 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 1698 transitions. Word has length 108 [2022-12-14 08:46:03,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:46:03,740 INFO L495 AbstractCegarLoop]: Abstraction has 1300 states and 1698 transitions. [2022-12-14 08:46:03,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2022-12-14 08:46:03,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 1698 transitions. [2022-12-14 08:46:03,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-12-14 08:46:03,741 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:46:03,741 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:46:03,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 08:46:03,741 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:46:03,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:46:03,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1678784813, now seen corresponding path program 1 times [2022-12-14 08:46:03,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:46:03,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816730275] [2022-12-14 08:46:03,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:46:03,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:46:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:46:03,980 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-12-14 08:46:03,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:46:03,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816730275] [2022-12-14 08:46:03,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816730275] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:46:03,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:46:03,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 08:46:03,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511432004] [2022-12-14 08:46:03,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:46:03,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 08:46:03,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:46:03,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 08:46:03,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:46:03,982 INFO L87 Difference]: Start difference. First operand 1300 states and 1698 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 08:46:07,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:46:07,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:46:07,632 INFO L93 Difference]: Finished difference Result 1339 states and 1733 transitions. [2022-12-14 08:46:07,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 08:46:07,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 127 [2022-12-14 08:46:07,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:46:07,640 INFO L225 Difference]: With dead ends: 1339 [2022-12-14 08:46:07,640 INFO L226 Difference]: Without dead ends: 1337 [2022-12-14 08:46:07,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 08:46:07,641 INFO L413 NwaCegarLoop]: 1279 mSDtfsCounter, 1358 mSDsluCounter, 2614 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 3893 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 08:46:07,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1360 Valid, 3893 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 509 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 08:46:07,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2022-12-14 08:46:07,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1332. [2022-12-14 08:46:07,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 723 states have (on average 1.1839557399723375) internal successors, (856), 756 states have internal predecessors, (856), 436 states have call successors, (436), 162 states have call predecessors, (436), 160 states have return successors, (434), 429 states have call predecessors, (434), 434 states have call successors, (434) [2022-12-14 08:46:07,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 1726 transitions. [2022-12-14 08:46:07,739 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 1726 transitions. Word has length 127 [2022-12-14 08:46:07,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:46:07,739 INFO L495 AbstractCegarLoop]: Abstraction has 1332 states and 1726 transitions. [2022-12-14 08:46:07,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 08:46:07,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 1726 transitions. [2022-12-14 08:46:07,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 08:46:07,740 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:46:07,740 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:46:07,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 08:46:07,740 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:46:07,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:46:07,741 INFO L85 PathProgramCache]: Analyzing trace with hash 504227500, now seen corresponding path program 1 times [2022-12-14 08:46:07,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:46:07,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022556014] [2022-12-14 08:46:07,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:46:07,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:46:07,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:46:07,918 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:46:07,918 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:46:07,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022556014] [2022-12-14 08:46:07,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022556014] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:46:07,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:46:07,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:46:07,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455510627] [2022-12-14 08:46:07,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:46:07,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:46:07,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:46:07,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:46:07,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:46:07,920 INFO L87 Difference]: Start difference. First operand 1332 states and 1726 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2022-12-14 08:46:11,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:46:11,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:46:11,460 INFO L93 Difference]: Finished difference Result 1342 states and 1733 transitions. [2022-12-14 08:46:11,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:46:11,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 113 [2022-12-14 08:46:11,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:46:11,464 INFO L225 Difference]: With dead ends: 1342 [2022-12-14 08:46:11,464 INFO L226 Difference]: Without dead ends: 1340 [2022-12-14 08:46:11,465 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:46:11,465 INFO L413 NwaCegarLoop]: 1290 mSDtfsCounter, 1382 mSDsluCounter, 1380 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1385 SdHoareTripleChecker+Valid, 2670 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 08:46:11,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1385 Valid, 2670 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 08:46:11,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2022-12-14 08:46:11,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1330. [2022-12-14 08:46:11,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 722 states have (on average 1.182825484764543) internal successors, (854), 754 states have internal predecessors, (854), 436 states have call successors, (436), 162 states have call predecessors, (436), 160 states have return successors, (434), 429 states have call predecessors, (434), 434 states have call successors, (434) [2022-12-14 08:46:11,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1724 transitions. [2022-12-14 08:46:11,586 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1724 transitions. Word has length 113 [2022-12-14 08:46:11,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:46:11,587 INFO L495 AbstractCegarLoop]: Abstraction has 1330 states and 1724 transitions. [2022-12-14 08:46:11,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2022-12-14 08:46:11,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1724 transitions. [2022-12-14 08:46:11,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-12-14 08:46:11,588 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:46:11,588 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:46:11,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 08:46:11,588 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:46:11,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:46:11,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1665412911, now seen corresponding path program 1 times [2022-12-14 08:46:11,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:46:11,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692734037] [2022-12-14 08:46:11,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:46:11,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:46:11,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:46:11,760 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:46:11,760 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:46:11,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692734037] [2022-12-14 08:46:11,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692734037] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:46:11,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:46:11,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:46:11,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217420399] [2022-12-14 08:46:11,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:46:11,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:46:11,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:46:11,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:46:11,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:46:11,762 INFO L87 Difference]: Start difference. First operand 1330 states and 1724 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 08:46:15,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:46:15,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:46:15,136 INFO L93 Difference]: Finished difference Result 1340 states and 1731 transitions. [2022-12-14 08:46:15,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:46:15,137 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 118 [2022-12-14 08:46:15,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:46:15,141 INFO L225 Difference]: With dead ends: 1340 [2022-12-14 08:46:15,141 INFO L226 Difference]: Without dead ends: 1338 [2022-12-14 08:46:15,142 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:46:15,142 INFO L413 NwaCegarLoop]: 1288 mSDtfsCounter, 1379 mSDsluCounter, 1378 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 2666 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 08:46:15,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1382 Valid, 2666 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 08:46:15,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2022-12-14 08:46:15,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 1328. [2022-12-14 08:46:15,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1328 states, 721 states have (on average 1.1816920943134535) internal successors, (852), 752 states have internal predecessors, (852), 436 states have call successors, (436), 162 states have call predecessors, (436), 160 states have return successors, (434), 429 states have call predecessors, (434), 434 states have call successors, (434) [2022-12-14 08:46:15,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1328 states and 1722 transitions. [2022-12-14 08:46:15,268 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 1722 transitions. Word has length 118 [2022-12-14 08:46:15,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:46:15,268 INFO L495 AbstractCegarLoop]: Abstraction has 1328 states and 1722 transitions. [2022-12-14 08:46:15,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 08:46:15,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 1722 transitions. [2022-12-14 08:46:15,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-12-14 08:46:15,269 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:46:15,269 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:46:15,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 08:46:15,269 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:46:15,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:46:15,270 INFO L85 PathProgramCache]: Analyzing trace with hash 141950800, now seen corresponding path program 1 times [2022-12-14 08:46:15,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:46:15,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942675622] [2022-12-14 08:46:15,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:46:15,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:46:15,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:46:15,617 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:46:15,617 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:46:15,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942675622] [2022-12-14 08:46:15,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942675622] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:46:15,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:46:15,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:46:15,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611748993] [2022-12-14 08:46:15,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:46:15,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:46:15,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:46:15,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:46:15,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:46:15,619 INFO L87 Difference]: Start difference. First operand 1328 states and 1722 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 08:46:18,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:46:18,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:46:18,973 INFO L93 Difference]: Finished difference Result 1338 states and 1729 transitions. [2022-12-14 08:46:18,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:46:18,973 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 123 [2022-12-14 08:46:18,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:46:18,977 INFO L225 Difference]: With dead ends: 1338 [2022-12-14 08:46:18,977 INFO L226 Difference]: Without dead ends: 1336 [2022-12-14 08:46:18,978 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:46:18,978 INFO L413 NwaCegarLoop]: 1286 mSDtfsCounter, 1376 mSDsluCounter, 1376 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1379 SdHoareTripleChecker+Valid, 2662 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:46:18,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1379 Valid, 2662 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 08:46:18,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states. [2022-12-14 08:46:19,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 1326. [2022-12-14 08:46:19,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 720 states have (on average 1.1805555555555556) internal successors, (850), 750 states have internal predecessors, (850), 436 states have call successors, (436), 162 states have call predecessors, (436), 160 states have return successors, (434), 429 states have call predecessors, (434), 434 states have call successors, (434) [2022-12-14 08:46:19,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1720 transitions. [2022-12-14 08:46:19,097 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1720 transitions. Word has length 123 [2022-12-14 08:46:19,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:46:19,097 INFO L495 AbstractCegarLoop]: Abstraction has 1326 states and 1720 transitions. [2022-12-14 08:46:19,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 08:46:19,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1720 transitions. [2022-12-14 08:46:19,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-12-14 08:46:19,098 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:46:19,098 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:46:19,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 08:46:19,098 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:46:19,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:46:19,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1177760477, now seen corresponding path program 1 times [2022-12-14 08:46:19,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:46:19,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300313132] [2022-12-14 08:46:19,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:46:19,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:46:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:46:19,275 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:46:19,275 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:46:19,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300313132] [2022-12-14 08:46:19,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300313132] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:46:19,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:46:19,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:46:19,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089455038] [2022-12-14 08:46:19,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:46:19,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:46:19,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:46:19,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:46:19,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:46:19,277 INFO L87 Difference]: Start difference. First operand 1326 states and 1720 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 08:46:22,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:46:22,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:46:22,686 INFO L93 Difference]: Finished difference Result 1336 states and 1727 transitions. [2022-12-14 08:46:22,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:46:22,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 128 [2022-12-14 08:46:22,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:46:22,690 INFO L225 Difference]: With dead ends: 1336 [2022-12-14 08:46:22,690 INFO L226 Difference]: Without dead ends: 1334 [2022-12-14 08:46:22,690 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:46:22,691 INFO L413 NwaCegarLoop]: 1284 mSDtfsCounter, 1373 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 2658 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 08:46:22,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1376 Valid, 2658 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 08:46:22,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2022-12-14 08:46:22,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1324. [2022-12-14 08:46:22,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 719 states have (on average 1.1794158553546592) internal successors, (848), 748 states have internal predecessors, (848), 436 states have call successors, (436), 162 states have call predecessors, (436), 160 states have return successors, (434), 429 states have call predecessors, (434), 434 states have call successors, (434) [2022-12-14 08:46:22,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1718 transitions. [2022-12-14 08:46:22,811 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1718 transitions. Word has length 128 [2022-12-14 08:46:22,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:46:22,811 INFO L495 AbstractCegarLoop]: Abstraction has 1324 states and 1718 transitions. [2022-12-14 08:46:22,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 08:46:22,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1718 transitions. [2022-12-14 08:46:22,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-12-14 08:46:22,813 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:46:22,813 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:46:22,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 08:46:22,813 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:46:22,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:46:22,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1789056442, now seen corresponding path program 1 times [2022-12-14 08:46:22,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:46:22,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592322619] [2022-12-14 08:46:22,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:46:22,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:46:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:46:23,049 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-12-14 08:46:23,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:46:23,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592322619] [2022-12-14 08:46:23,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592322619] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:46:23,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:46:23,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 08:46:23,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57837084] [2022-12-14 08:46:23,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:46:23,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 08:46:23,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:46:23,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 08:46:23,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:46:23,051 INFO L87 Difference]: Start difference. First operand 1324 states and 1718 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 08:46:27,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:46:27,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:46:27,312 INFO L93 Difference]: Finished difference Result 1329 states and 1721 transitions. [2022-12-14 08:46:27,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 08:46:27,313 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 146 [2022-12-14 08:46:27,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:46:27,316 INFO L225 Difference]: With dead ends: 1329 [2022-12-14 08:46:27,316 INFO L226 Difference]: Without dead ends: 1327 [2022-12-14 08:46:27,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 08:46:27,317 INFO L413 NwaCegarLoop]: 1265 mSDtfsCounter, 38 mSDsluCounter, 3764 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 5029 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:46:27,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 5029 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 658 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 08:46:27,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2022-12-14 08:46:27,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 1323. [2022-12-14 08:46:27,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1323 states, 719 states have (on average 1.1752433936022253) internal successors, (845), 748 states have internal predecessors, (845), 435 states have call successors, (435), 162 states have call predecessors, (435), 160 states have return successors, (433), 428 states have call predecessors, (433), 433 states have call successors, (433) [2022-12-14 08:46:27,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 1713 transitions. [2022-12-14 08:46:27,438 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 1713 transitions. Word has length 146 [2022-12-14 08:46:27,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:46:27,439 INFO L495 AbstractCegarLoop]: Abstraction has 1323 states and 1713 transitions. [2022-12-14 08:46:27,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 08:46:27,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 1713 transitions. [2022-12-14 08:46:27,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-12-14 08:46:27,440 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:46:27,440 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:46:27,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 08:46:27,440 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:46:27,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:46:27,440 INFO L85 PathProgramCache]: Analyzing trace with hash -270616503, now seen corresponding path program 1 times [2022-12-14 08:46:27,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:46:27,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89075381] [2022-12-14 08:46:27,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:46:27,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:46:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:46:27,613 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:46:27,613 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:46:27,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89075381] [2022-12-14 08:46:27,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89075381] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:46:27,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:46:27,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:46:27,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541658019] [2022-12-14 08:46:27,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:46:27,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:46:27,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:46:27,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:46:27,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:46:27,615 INFO L87 Difference]: Start difference. First operand 1323 states and 1713 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 08:46:30,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:46:30,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:46:30,812 INFO L93 Difference]: Finished difference Result 1331 states and 1719 transitions. [2022-12-14 08:46:30,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:46:30,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 133 [2022-12-14 08:46:30,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:46:30,816 INFO L225 Difference]: With dead ends: 1331 [2022-12-14 08:46:30,816 INFO L226 Difference]: Without dead ends: 1329 [2022-12-14 08:46:30,816 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:46:30,816 INFO L413 NwaCegarLoop]: 1282 mSDtfsCounter, 1370 mSDsluCounter, 1370 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1373 SdHoareTripleChecker+Valid, 2652 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:46:30,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1373 Valid, 2652 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2022-12-14 08:46:30,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2022-12-14 08:46:30,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1321. [2022-12-14 08:46:30,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1321 states, 718 states have (on average 1.1740947075208914) internal successors, (843), 746 states have internal predecessors, (843), 435 states have call successors, (435), 162 states have call predecessors, (435), 160 states have return successors, (433), 428 states have call predecessors, (433), 433 states have call successors, (433) [2022-12-14 08:46:30,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 1711 transitions. [2022-12-14 08:46:30,943 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 1711 transitions. Word has length 133 [2022-12-14 08:46:30,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:46:30,943 INFO L495 AbstractCegarLoop]: Abstraction has 1321 states and 1711 transitions. [2022-12-14 08:46:30,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 08:46:30,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 1711 transitions. [2022-12-14 08:46:30,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-12-14 08:46:30,944 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:46:30,945 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:46:30,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 08:46:30,945 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:46:30,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:46:30,945 INFO L85 PathProgramCache]: Analyzing trace with hash -601931423, now seen corresponding path program 1 times [2022-12-14 08:46:30,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:46:30,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749667318] [2022-12-14 08:46:30,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:46:30,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:46:30,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:46:31,104 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:46:31,104 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:46:31,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749667318] [2022-12-14 08:46:31,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749667318] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:46:31,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:46:31,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:46:31,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32260173] [2022-12-14 08:46:31,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:46:31,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:46:31,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:46:31,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:46:31,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:46:31,106 INFO L87 Difference]: Start difference. First operand 1321 states and 1711 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 08:46:34,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:46:34,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:46:34,542 INFO L93 Difference]: Finished difference Result 1329 states and 1717 transitions. [2022-12-14 08:46:34,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:46:34,543 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 138 [2022-12-14 08:46:34,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:46:34,546 INFO L225 Difference]: With dead ends: 1329 [2022-12-14 08:46:34,546 INFO L226 Difference]: Without dead ends: 1327 [2022-12-14 08:46:34,546 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:46:34,547 INFO L413 NwaCegarLoop]: 1280 mSDtfsCounter, 1367 mSDsluCounter, 1368 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 2648 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 08:46:34,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 2648 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 08:46:34,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2022-12-14 08:46:34,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 1319. [2022-12-14 08:46:34,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 717 states have (on average 1.1729428172942817) internal successors, (841), 744 states have internal predecessors, (841), 435 states have call successors, (435), 162 states have call predecessors, (435), 160 states have return successors, (433), 428 states have call predecessors, (433), 433 states have call successors, (433) [2022-12-14 08:46:34,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1709 transitions. [2022-12-14 08:46:34,687 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1709 transitions. Word has length 138 [2022-12-14 08:46:34,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:46:34,687 INFO L495 AbstractCegarLoop]: Abstraction has 1319 states and 1709 transitions. [2022-12-14 08:46:34,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 08:46:34,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1709 transitions. [2022-12-14 08:46:34,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-12-14 08:46:34,688 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:46:34,688 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:46:34,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-14 08:46:34,688 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:46:34,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:46:34,689 INFO L85 PathProgramCache]: Analyzing trace with hash -310743201, now seen corresponding path program 1 times [2022-12-14 08:46:34,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:46:34,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249262068] [2022-12-14 08:46:34,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:46:34,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:46:34,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:46:34,852 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:46:34,853 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:46:34,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249262068] [2022-12-14 08:46:34,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249262068] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:46:34,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:46:34,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:46:34,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300280089] [2022-12-14 08:46:34,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:46:34,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:46:34,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:46:34,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:46:34,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:46:34,854 INFO L87 Difference]: Start difference. First operand 1319 states and 1709 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 08:46:38,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:46:38,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:46:38,144 INFO L93 Difference]: Finished difference Result 1327 states and 1715 transitions. [2022-12-14 08:46:38,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:46:38,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 143 [2022-12-14 08:46:38,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:46:38,149 INFO L225 Difference]: With dead ends: 1327 [2022-12-14 08:46:38,149 INFO L226 Difference]: Without dead ends: 1325 [2022-12-14 08:46:38,150 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:46:38,150 INFO L413 NwaCegarLoop]: 1278 mSDtfsCounter, 1364 mSDsluCounter, 1366 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 2644 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:46:38,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1367 Valid, 2644 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 08:46:38,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2022-12-14 08:46:38,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1317. [2022-12-14 08:46:38,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1317 states, 716 states have (on average 1.1717877094972067) internal successors, (839), 742 states have internal predecessors, (839), 435 states have call successors, (435), 162 states have call predecessors, (435), 160 states have return successors, (433), 428 states have call predecessors, (433), 433 states have call successors, (433) [2022-12-14 08:46:38,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1317 states to 1317 states and 1707 transitions. [2022-12-14 08:46:38,297 INFO L78 Accepts]: Start accepts. Automaton has 1317 states and 1707 transitions. Word has length 143 [2022-12-14 08:46:38,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:46:38,297 INFO L495 AbstractCegarLoop]: Abstraction has 1317 states and 1707 transitions. [2022-12-14 08:46:38,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 08:46:38,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1317 states and 1707 transitions. [2022-12-14 08:46:38,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-12-14 08:46:38,298 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:46:38,299 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:46:38,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 08:46:38,299 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:46:38,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:46:38,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1954207120, now seen corresponding path program 1 times [2022-12-14 08:46:38,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:46:38,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626756003] [2022-12-14 08:46:38,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:46:38,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:46:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:46:38,462 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 08:46:38,462 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:46:38,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626756003] [2022-12-14 08:46:38,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626756003] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:46:38,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:46:38,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:46:38,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066876875] [2022-12-14 08:46:38,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:46:38,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:46:38,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:46:38,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:46:38,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:46:38,463 INFO L87 Difference]: Start difference. First operand 1317 states and 1707 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 08:46:42,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:46:42,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:46:42,302 INFO L93 Difference]: Finished difference Result 2403 states and 3115 transitions. [2022-12-14 08:46:42,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:46:42,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 148 [2022-12-14 08:46:42,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:46:42,310 INFO L225 Difference]: With dead ends: 2403 [2022-12-14 08:46:42,310 INFO L226 Difference]: Without dead ends: 2275 [2022-12-14 08:46:42,311 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:46:42,311 INFO L413 NwaCegarLoop]: 1633 mSDtfsCounter, 1292 mSDsluCounter, 2794 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1292 SdHoareTripleChecker+Valid, 4427 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 08:46:42,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1292 Valid, 4427 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 08:46:42,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2275 states. [2022-12-14 08:46:42,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2275 to 2260. [2022-12-14 08:46:42,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2260 states, 1233 states have (on average 1.1759935117599352) internal successors, (1450), 1275 states have internal predecessors, (1450), 746 states have call successors, (746), 277 states have call predecessors, (746), 275 states have return successors, (755), 737 states have call predecessors, (755), 744 states have call successors, (755) [2022-12-14 08:46:42,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2260 states to 2260 states and 2951 transitions. [2022-12-14 08:46:42,567 INFO L78 Accepts]: Start accepts. Automaton has 2260 states and 2951 transitions. Word has length 148 [2022-12-14 08:46:42,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:46:42,567 INFO L495 AbstractCegarLoop]: Abstraction has 2260 states and 2951 transitions. [2022-12-14 08:46:42,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 08:46:42,567 INFO L276 IsEmpty]: Start isEmpty. Operand 2260 states and 2951 transitions. [2022-12-14 08:46:42,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-12-14 08:46:42,568 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:46:42,568 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:46:42,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-14 08:46:42,568 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:46:42,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:46:42,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1959345146, now seen corresponding path program 1 times [2022-12-14 08:46:42,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:46:42,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149707762] [2022-12-14 08:46:42,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:46:42,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:46:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:46:42,887 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-12-14 08:46:42,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:46:42,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149707762] [2022-12-14 08:46:42,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149707762] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:46:42,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:46:42,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:46:42,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537919360] [2022-12-14 08:46:42,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:46:42,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:46:42,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:46:42,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:46:42,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:46:42,889 INFO L87 Difference]: Start difference. First operand 2260 states and 2951 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-12-14 08:46:48,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:46:48,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:46:48,072 INFO L93 Difference]: Finished difference Result 4394 states and 5791 transitions. [2022-12-14 08:46:48,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 08:46:48,073 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), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 166 [2022-12-14 08:46:48,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:46:48,079 INFO L225 Difference]: With dead ends: 4394 [2022-12-14 08:46:48,079 INFO L226 Difference]: Without dead ends: 2986 [2022-12-14 08:46:48,082 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:46:48,082 INFO L413 NwaCegarLoop]: 1666 mSDtfsCounter, 683 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 4006 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-12-14 08:46:48,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 4006 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1286 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-12-14 08:46:48,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2986 states. [2022-12-14 08:46:48,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2986 to 2547. [2022-12-14 08:46:48,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2547 states, 1398 states have (on average 1.1773962804005722) internal successors, (1646), 1446 states have internal predecessors, (1646), 824 states have call successors, (824), 321 states have call predecessors, (824), 319 states have return successors, (833), 812 states have call predecessors, (833), 822 states have call successors, (833) [2022-12-14 08:46:48,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2547 states to 2547 states and 3303 transitions. [2022-12-14 08:46:48,405 INFO L78 Accepts]: Start accepts. Automaton has 2547 states and 3303 transitions. Word has length 166 [2022-12-14 08:46:48,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:46:48,405 INFO L495 AbstractCegarLoop]: Abstraction has 2547 states and 3303 transitions. [2022-12-14 08:46:48,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-12-14 08:46:48,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2547 states and 3303 transitions. [2022-12-14 08:46:48,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-12-14 08:46:48,406 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:46:48,406 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:46:48,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-14 08:46:48,407 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:46:48,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:46:48,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1860500914, now seen corresponding path program 1 times [2022-12-14 08:46:48,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:46:48,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824372818] [2022-12-14 08:46:48,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:46:48,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:46:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:46:48,921 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-12-14 08:46:48,921 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:46:48,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824372818] [2022-12-14 08:46:48,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824372818] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:46:48,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:46:48,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 08:46:48,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865345437] [2022-12-14 08:46:48,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:46:48,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 08:46:48,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:46:48,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 08:46:48,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 08:46:48,923 INFO L87 Difference]: Start difference. First operand 2547 states and 3303 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 4 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-12-14 08:46:56,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:46:56,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:46:56,166 INFO L93 Difference]: Finished difference Result 4646 states and 6100 transitions. [2022-12-14 08:46:56,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 08:46:56,166 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 4 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 167 [2022-12-14 08:46:56,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:46:56,174 INFO L225 Difference]: With dead ends: 4646 [2022-12-14 08:46:56,174 INFO L226 Difference]: Without dead ends: 2986 [2022-12-14 08:46:56,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-12-14 08:46:56,177 INFO L413 NwaCegarLoop]: 1852 mSDtfsCounter, 806 mSDsluCounter, 5422 mSDsCounter, 0 mSdLazyCounter, 1797 mSolverCounterSat, 365 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 7274 SdHoareTripleChecker+Invalid, 2163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 1797 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-12-14 08:46:56,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 7274 Invalid, 2163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 1797 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-12-14 08:46:56,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2986 states. [2022-12-14 08:46:56,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2986 to 2551. [2022-12-14 08:46:56,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2551 states, 1401 states have (on average 1.177730192719486) internal successors, (1650), 1449 states have internal predecessors, (1650), 825 states have call successors, (825), 321 states have call predecessors, (825), 319 states have return successors, (834), 813 states have call predecessors, (834), 823 states have call successors, (834) [2022-12-14 08:46:56,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2551 states to 2551 states and 3309 transitions. [2022-12-14 08:46:56,532 INFO L78 Accepts]: Start accepts. Automaton has 2551 states and 3309 transitions. Word has length 167 [2022-12-14 08:46:56,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:46:56,532 INFO L495 AbstractCegarLoop]: Abstraction has 2551 states and 3309 transitions. [2022-12-14 08:46:56,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 4 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-12-14 08:46:56,533 INFO L276 IsEmpty]: Start isEmpty. Operand 2551 states and 3309 transitions. [2022-12-14 08:46:56,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-12-14 08:46:56,533 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:46:56,534 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:46:56,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-14 08:46:56,534 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:46:56,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:46:56,534 INFO L85 PathProgramCache]: Analyzing trace with hash 171331208, now seen corresponding path program 1 times [2022-12-14 08:46:56,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:46:56,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193366116] [2022-12-14 08:46:56,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:46:56,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:46:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:46:56,828 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2022-12-14 08:46:56,828 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:46:56,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193366116] [2022-12-14 08:46:56,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193366116] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:46:56,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:46:56,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 08:46:56,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906806754] [2022-12-14 08:46:56,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:46:56,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 08:46:56,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:46:56,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 08:46:56,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:46:56,830 INFO L87 Difference]: Start difference. First operand 2551 states and 3309 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 08:47:01,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:47:01,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:47:01,584 INFO L93 Difference]: Finished difference Result 2571 states and 3323 transitions. [2022-12-14 08:47:01,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 08:47:01,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 168 [2022-12-14 08:47:01,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:47:01,590 INFO L225 Difference]: With dead ends: 2571 [2022-12-14 08:47:01,590 INFO L226 Difference]: Without dead ends: 2569 [2022-12-14 08:47:01,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 08:47:01,591 INFO L413 NwaCegarLoop]: 1354 mSDtfsCounter, 310 mSDsluCounter, 3821 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 5175 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-12-14 08:47:01,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 5175 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 707 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-12-14 08:47:01,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2569 states. [2022-12-14 08:47:01,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2569 to 2559. [2022-12-14 08:47:01,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2559 states, 1407 states have (on average 1.1762615493958777) internal successors, (1655), 1455 states have internal predecessors, (1655), 825 states have call successors, (825), 323 states have call predecessors, (825), 321 states have return successors, (834), 813 states have call predecessors, (834), 823 states have call successors, (834) [2022-12-14 08:47:01,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2559 states to 2559 states and 3314 transitions. [2022-12-14 08:47:01,942 INFO L78 Accepts]: Start accepts. Automaton has 2559 states and 3314 transitions. Word has length 168 [2022-12-14 08:47:01,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:47:01,942 INFO L495 AbstractCegarLoop]: Abstraction has 2559 states and 3314 transitions. [2022-12-14 08:47:01,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 08:47:01,942 INFO L276 IsEmpty]: Start isEmpty. Operand 2559 states and 3314 transitions. [2022-12-14 08:47:01,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-12-14 08:47:01,943 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:47:01,944 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:47:01,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-14 08:47:01,944 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:47:01,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:47:01,944 INFO L85 PathProgramCache]: Analyzing trace with hash -202643659, now seen corresponding path program 1 times [2022-12-14 08:47:01,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:47:01,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131728833] [2022-12-14 08:47:01,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:47:01,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:47:01,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:47:02,290 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2022-12-14 08:47:02,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:47:02,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131728833] [2022-12-14 08:47:02,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131728833] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:47:02,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:47:02,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:47:02,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865475904] [2022-12-14 08:47:02,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:47:02,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:47:02,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:47:02,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:47:02,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:47:02,292 INFO L87 Difference]: Start difference. First operand 2559 states and 3314 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 08:47:06,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:47:06,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:47:06,826 INFO L93 Difference]: Finished difference Result 4895 states and 6497 transitions. [2022-12-14 08:47:06,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:47:06,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 177 [2022-12-14 08:47:06,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:47:06,833 INFO L225 Difference]: With dead ends: 4895 [2022-12-14 08:47:06,833 INFO L226 Difference]: Without dead ends: 3223 [2022-12-14 08:47:06,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:47:06,836 INFO L413 NwaCegarLoop]: 1483 mSDtfsCounter, 412 mSDsluCounter, 2611 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 272 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 4094 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 272 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 08:47:06,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 4094 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [272 Valid, 518 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 08:47:06,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3223 states. [2022-12-14 08:47:07,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3223 to 2568. [2022-12-14 08:47:07,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2568 states, 1413 states have (on average 1.175513092710545) internal successors, (1661), 1461 states have internal predecessors, (1661), 828 states have call successors, (828), 323 states have call predecessors, (828), 321 states have return successors, (837), 816 states have call predecessors, (837), 826 states have call successors, (837) [2022-12-14 08:47:07,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2568 states to 2568 states and 3326 transitions. [2022-12-14 08:47:07,226 INFO L78 Accepts]: Start accepts. Automaton has 2568 states and 3326 transitions. Word has length 177 [2022-12-14 08:47:07,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:47:07,226 INFO L495 AbstractCegarLoop]: Abstraction has 2568 states and 3326 transitions. [2022-12-14 08:47:07,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 08:47:07,227 INFO L276 IsEmpty]: Start isEmpty. Operand 2568 states and 3326 transitions. [2022-12-14 08:47:07,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-12-14 08:47:07,228 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:47:07,228 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:47:07,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-14 08:47:07,228 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:47:07,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:47:07,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1426574141, now seen corresponding path program 1 times [2022-12-14 08:47:07,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:47:07,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405905253] [2022-12-14 08:47:07,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:47:07,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:47:07,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:47:07,576 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2022-12-14 08:47:07,576 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:47:07,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405905253] [2022-12-14 08:47:07,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405905253] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:47:07,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:47:07,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 08:47:07,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365014750] [2022-12-14 08:47:07,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:47:07,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 08:47:07,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:47:07,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 08:47:07,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:47:07,578 INFO L87 Difference]: Start difference. First operand 2568 states and 3326 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 08:47:12,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:47:12,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:47:12,392 INFO L93 Difference]: Finished difference Result 3639 states and 4691 transitions. [2022-12-14 08:47:12,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 08:47:12,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 178 [2022-12-14 08:47:12,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:47:12,400 INFO L225 Difference]: With dead ends: 3639 [2022-12-14 08:47:12,400 INFO L226 Difference]: Without dead ends: 3637 [2022-12-14 08:47:12,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 08:47:12,401 INFO L413 NwaCegarLoop]: 1473 mSDtfsCounter, 1206 mSDsluCounter, 3666 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 5139 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:47:12,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1212 Valid, 5139 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 629 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 08:47:12,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3637 states. [2022-12-14 08:47:12,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3637 to 3618. [2022-12-14 08:47:12,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3618 states, 1996 states have (on average 1.184869739478958) internal successors, (2365), 2068 states have internal predecessors, (2365), 1148 states have call successors, (1148), 476 states have call predecessors, (1148), 468 states have return successors, (1158), 1120 states have call predecessors, (1158), 1146 states have call successors, (1158) [2022-12-14 08:47:12,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3618 states to 3618 states and 4671 transitions. [2022-12-14 08:47:12,932 INFO L78 Accepts]: Start accepts. Automaton has 3618 states and 4671 transitions. Word has length 178 [2022-12-14 08:47:12,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:47:12,932 INFO L495 AbstractCegarLoop]: Abstraction has 3618 states and 4671 transitions. [2022-12-14 08:47:12,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 08:47:12,933 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 4671 transitions. [2022-12-14 08:47:12,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-12-14 08:47:12,934 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:47:12,934 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:47:12,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-14 08:47:12,934 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:47:12,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:47:12,935 INFO L85 PathProgramCache]: Analyzing trace with hash 264814959, now seen corresponding path program 1 times [2022-12-14 08:47:12,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:47:12,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352050189] [2022-12-14 08:47:12,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:47:12,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:47:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:47:13,270 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2022-12-14 08:47:13,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:47:13,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352050189] [2022-12-14 08:47:13,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352050189] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:47:13,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:47:13,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 08:47:13,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874104549] [2022-12-14 08:47:13,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:47:13,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 08:47:13,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:47:13,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 08:47:13,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:47:13,272 INFO L87 Difference]: Start difference. First operand 3618 states and 4671 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 1 states have call successors, (33) [2022-12-14 08:47:17,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:47:17,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:47:17,962 INFO L93 Difference]: Finished difference Result 3778 states and 4819 transitions. [2022-12-14 08:47:17,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 08:47:17,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 1 states have call successors, (33) Word has length 188 [2022-12-14 08:47:17,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:47:17,972 INFO L225 Difference]: With dead ends: 3778 [2022-12-14 08:47:17,972 INFO L226 Difference]: Without dead ends: 3776 [2022-12-14 08:47:17,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 08:47:17,973 INFO L413 NwaCegarLoop]: 1411 mSDtfsCounter, 275 mSDsluCounter, 4033 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 5444 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:47:17,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 5444 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 748 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 08:47:17,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3776 states. [2022-12-14 08:47:18,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3776 to 3766. [2022-12-14 08:47:18,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3766 states, 2080 states have (on average 1.179326923076923) internal successors, (2453), 2152 states have internal predecessors, (2453), 1172 states have call successors, (1172), 520 states have call predecessors, (1172), 508 states have return successors, (1182), 1140 states have call predecessors, (1182), 1170 states have call successors, (1182) [2022-12-14 08:47:18,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3766 states to 3766 states and 4807 transitions. [2022-12-14 08:47:18,527 INFO L78 Accepts]: Start accepts. Automaton has 3766 states and 4807 transitions. Word has length 188 [2022-12-14 08:47:18,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:47:18,527 INFO L495 AbstractCegarLoop]: Abstraction has 3766 states and 4807 transitions. [2022-12-14 08:47:18,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 1 states have call successors, (33) [2022-12-14 08:47:18,528 INFO L276 IsEmpty]: Start isEmpty. Operand 3766 states and 4807 transitions. [2022-12-14 08:47:18,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-12-14 08:47:18,529 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:47:18,529 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:47:18,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-14 08:47:18,529 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:47:18,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:47:18,530 INFO L85 PathProgramCache]: Analyzing trace with hash 227667752, now seen corresponding path program 1 times [2022-12-14 08:47:18,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:47:18,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889105754] [2022-12-14 08:47:18,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:47:18,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:47:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:47:18,826 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2022-12-14 08:47:18,826 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:47:18,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889105754] [2022-12-14 08:47:18,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889105754] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:47:18,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:47:18,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 08:47:18,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630392336] [2022-12-14 08:47:18,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:47:18,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 08:47:18,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:47:18,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 08:47:18,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:47:18,828 INFO L87 Difference]: Start difference. First operand 3766 states and 4807 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 08:47:22,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:47:23,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:47:23,093 INFO L93 Difference]: Finished difference Result 3836 states and 4849 transitions. [2022-12-14 08:47:23,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 08:47:23,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 202 [2022-12-14 08:47:23,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:47:23,102 INFO L225 Difference]: With dead ends: 3836 [2022-12-14 08:47:23,103 INFO L226 Difference]: Without dead ends: 3834 [2022-12-14 08:47:23,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 08:47:23,104 INFO L413 NwaCegarLoop]: 1280 mSDtfsCounter, 1225 mSDsluCounter, 2760 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 4040 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-12-14 08:47:23,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1228 Valid, 4040 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 527 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-12-14 08:47:23,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3834 states. [2022-12-14 08:47:23,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3834 to 3829. [2022-12-14 08:47:23,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3829 states, 2117 states have (on average 1.170996693434105) internal successors, (2479), 2189 states have internal predecessors, (2479), 1172 states have call successors, (1172), 546 states have call predecessors, (1172), 534 states have return successors, (1182), 1140 states have call predecessors, (1182), 1170 states have call successors, (1182) [2022-12-14 08:47:23,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3829 states to 3829 states and 4833 transitions. [2022-12-14 08:47:23,682 INFO L78 Accepts]: Start accepts. Automaton has 3829 states and 4833 transitions. Word has length 202 [2022-12-14 08:47:23,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:47:23,682 INFO L495 AbstractCegarLoop]: Abstraction has 3829 states and 4833 transitions. [2022-12-14 08:47:23,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 08:47:23,683 INFO L276 IsEmpty]: Start isEmpty. Operand 3829 states and 4833 transitions. [2022-12-14 08:47:23,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-12-14 08:47:23,684 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:47:23,684 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:47:23,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-14 08:47:23,684 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:47:23,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:47:23,684 INFO L85 PathProgramCache]: Analyzing trace with hash 553667070, now seen corresponding path program 1 times [2022-12-14 08:47:23,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:47:23,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963089706] [2022-12-14 08:47:23,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:47:23,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:47:23,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:47:24,071 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2022-12-14 08:47:24,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:47:24,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963089706] [2022-12-14 08:47:24,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963089706] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:47:24,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:47:24,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 08:47:24,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113247630] [2022-12-14 08:47:24,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:47:24,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 08:47:24,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:47:24,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 08:47:24,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:47:24,073 INFO L87 Difference]: Start difference. First operand 3829 states and 4833 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 08:47:28,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:47:28,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:47:28,733 INFO L93 Difference]: Finished difference Result 5809 states and 7224 transitions. [2022-12-14 08:47:28,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 08:47:28,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 222 [2022-12-14 08:47:28,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:47:28,744 INFO L225 Difference]: With dead ends: 5809 [2022-12-14 08:47:28,744 INFO L226 Difference]: Without dead ends: 5807 [2022-12-14 08:47:28,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 08:47:28,746 INFO L413 NwaCegarLoop]: 1533 mSDtfsCounter, 1165 mSDsluCounter, 3981 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 5514 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-12-14 08:47:28,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1171 Valid, 5514 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 662 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-12-14 08:47:28,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5807 states. [2022-12-14 08:47:29,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5807 to 5784. [2022-12-14 08:47:29,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5784 states, 3228 states have (on average 1.167905824039653) internal successors, (3770), 3346 states have internal predecessors, (3770), 1707 states have call successors, (1707), 859 states have call predecessors, (1707), 843 states have return successors, (1721), 1653 states have call predecessors, (1721), 1705 states have call successors, (1721) [2022-12-14 08:47:29,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5784 states to 5784 states and 7198 transitions. [2022-12-14 08:47:29,624 INFO L78 Accepts]: Start accepts. Automaton has 5784 states and 7198 transitions. Word has length 222 [2022-12-14 08:47:29,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:47:29,624 INFO L495 AbstractCegarLoop]: Abstraction has 5784 states and 7198 transitions. [2022-12-14 08:47:29,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 08:47:29,624 INFO L276 IsEmpty]: Start isEmpty. Operand 5784 states and 7198 transitions. [2022-12-14 08:47:29,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-12-14 08:47:29,626 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:47:29,626 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:47:29,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-14 08:47:29,626 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:47:29,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:47:29,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1604218777, now seen corresponding path program 1 times [2022-12-14 08:47:29,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:47:29,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813181552] [2022-12-14 08:47:29,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:47:29,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:47:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:47:30,335 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked. [2022-12-14 08:47:30,336 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:47:30,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813181552] [2022-12-14 08:47:30,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813181552] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:47:30,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:47:30,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 08:47:30,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183902867] [2022-12-14 08:47:30,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:47:30,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 08:47:30,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:47:30,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 08:47:30,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 08:47:30,337 INFO L87 Difference]: Start difference. First operand 5784 states and 7198 transitions. Second operand has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 4 states have call predecessors, (39), 3 states have call successors, (39) [2022-12-14 08:47:35,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:47:36,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:47:36,046 INFO L93 Difference]: Finished difference Result 11029 states and 13731 transitions. [2022-12-14 08:47:36,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 08:47:36,047 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 4 states have call predecessors, (39), 3 states have call successors, (39) Word has length 232 [2022-12-14 08:47:36,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:47:36,057 INFO L225 Difference]: With dead ends: 11029 [2022-12-14 08:47:36,057 INFO L226 Difference]: Without dead ends: 5793 [2022-12-14 08:47:36,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-14 08:47:36,065 INFO L413 NwaCegarLoop]: 1260 mSDtfsCounter, 8 mSDsluCounter, 6270 mSDsCounter, 0 mSdLazyCounter, 1018 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 7530 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1018 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-12-14 08:47:36,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 7530 Invalid, 1019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1018 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-12-14 08:47:36,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5793 states. [2022-12-14 08:47:36,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5793 to 5790. [2022-12-14 08:47:36,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5790 states, 3232 states have (on average 1.1676980198019802) internal successors, (3774), 3350 states have internal predecessors, (3774), 1708 states have call successors, (1708), 859 states have call predecessors, (1708), 844 states have return successors, (1723), 1655 states have call predecessors, (1723), 1706 states have call successors, (1723) [2022-12-14 08:47:37,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5790 states to 5790 states and 7205 transitions. [2022-12-14 08:47:37,006 INFO L78 Accepts]: Start accepts. Automaton has 5790 states and 7205 transitions. Word has length 232 [2022-12-14 08:47:37,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:47:37,007 INFO L495 AbstractCegarLoop]: Abstraction has 5790 states and 7205 transitions. [2022-12-14 08:47:37,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 4 states have call predecessors, (39), 3 states have call successors, (39) [2022-12-14 08:47:37,007 INFO L276 IsEmpty]: Start isEmpty. Operand 5790 states and 7205 transitions. [2022-12-14 08:47:37,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-12-14 08:47:37,010 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:47:37,010 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:47:37,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-14 08:47:37,010 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:47:37,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:47:37,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1048208485, now seen corresponding path program 1 times [2022-12-14 08:47:37,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:47:37,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480862873] [2022-12-14 08:47:37,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:47:37,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:47:37,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:47:37,371 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2022-12-14 08:47:37,371 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:47:37,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480862873] [2022-12-14 08:47:37,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480862873] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:47:37,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:47:37,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 08:47:37,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266788048] [2022-12-14 08:47:37,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:47:37,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 08:47:37,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:47:37,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 08:47:37,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:47:37,373 INFO L87 Difference]: Start difference. First operand 5790 states and 7205 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (41), 3 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-12-14 08:47:42,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:47:42,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:47:42,270 INFO L93 Difference]: Finished difference Result 5790 states and 7205 transitions. [2022-12-14 08:47:42,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 08:47:42,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (41), 3 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 244 [2022-12-14 08:47:42,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:47:42,282 INFO L225 Difference]: With dead ends: 5790 [2022-12-14 08:47:42,282 INFO L226 Difference]: Without dead ends: 5788 [2022-12-14 08:47:42,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 08:47:42,284 INFO L413 NwaCegarLoop]: 1260 mSDtfsCounter, 129 mSDsluCounter, 3652 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 4912 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:47:42,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 4912 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 664 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 08:47:42,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5788 states. [2022-12-14 08:47:43,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5788 to 5788. [2022-12-14 08:47:43,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5788 states, 3231 states have (on average 1.162178891983906) internal successors, (3755), 3348 states have internal predecessors, (3755), 1708 states have call successors, (1708), 859 states have call predecessors, (1708), 844 states have return successors, (1723), 1655 states have call predecessors, (1723), 1706 states have call successors, (1723) [2022-12-14 08:47:43,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5788 states to 5788 states and 7186 transitions. [2022-12-14 08:47:43,165 INFO L78 Accepts]: Start accepts. Automaton has 5788 states and 7186 transitions. Word has length 244 [2022-12-14 08:47:43,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:47:43,165 INFO L495 AbstractCegarLoop]: Abstraction has 5788 states and 7186 transitions. [2022-12-14 08:47:43,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (41), 3 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-12-14 08:47:43,166 INFO L276 IsEmpty]: Start isEmpty. Operand 5788 states and 7186 transitions. [2022-12-14 08:47:43,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-12-14 08:47:43,167 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:47:43,168 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:47:43,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-12-14 08:47:43,168 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2022-12-14 08:47:43,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:47:43,168 INFO L85 PathProgramCache]: Analyzing trace with hash 502168986, now seen corresponding path program 1 times [2022-12-14 08:47:43,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:47:43,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987477605] [2022-12-14 08:47:43,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:47:43,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:47:43,228 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:47:43,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [21542760] [2022-12-14 08:47:43,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:47:43,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:47:43,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:47:43,229 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:47:43,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387e8ba4-e839-4bb1-9898-74ff4f4cedb9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 08:47:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:47:44,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 3204 conjuncts, 40 conjunts are in the unsatisfiable core [2022-12-14 08:47:44,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:47:44,381 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 256 proven. 2 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2022-12-14 08:47:44,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:47:44,733 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 13 proven. 37 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2022-12-14 08:47:44,733 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:47:44,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987477605] [2022-12-14 08:47:44,734 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:47:44,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21542760] [2022-12-14 08:47:44,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21542760] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:47:44,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1436167934] [2022-12-14 08:47:44,754 INFO L159 IcfgInterpreter]: Started Sifa with 151 locations of interest [2022-12-14 08:47:44,754 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:47:44,757 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:47:44,762 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:47:44,762 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:47:46,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 08:47:46,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 08:47:46,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 08:47:46,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 08:47:46,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 08:47:46,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 08:47:46,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 08:47:47,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 08:47:47,264 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 08:47:47,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 08:47:47,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 08:47:47,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 08:47:47,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:47,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:47,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:47,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:47,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:47,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:47,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:47,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:47,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:47,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:47,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:47,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:47,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:47,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:47,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:47,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:47,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:47,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:47,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:47,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 19 select indices, 19 select index equivalence classes, 190 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 0 case distinctions, treesize of input 1044 treesize of output 860 [2022-12-14 08:47:48,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:48,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:48,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:48,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:48,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:48,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:48,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 53 [2022-12-14 08:47:48,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 08:47:48,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2022-12-14 08:47:49,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 08:47:49,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:49,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:49,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:47:49,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-12-14 08:47:49,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2022-12-14 08:47:49,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2022-12-14 08:47:49,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 08:47:50,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11