`val checker : Callbacks.proc_callback_t`
`module Payload : SummaryPayload.S with type t = BufferOverrunDomain.Summary.t`
`module CFG = ProcCfg.NormalOneInstrPerNode`
`type invariant_map`````
`val compute_invariant_map_and_check : Callbacks.proc_callback_args ‑> invariant_map * Summary.t`
`val extract_pre : CFG.Node.id ‑> invariant_map ‑> BufferOverrunDomain.Mem.t option`
`val extract_post : CFG.Node.id ‑> invariant_map ‑> BufferOverrunDomain.Mem.t option`