sig
type proof_step = ProofStep.t
type proof = ProofStep.of_
type result = Sat | Unsat of proof
exception WrongState of string
module type S =
sig
module Lit = BBox.Lit
exception UndecidedLit
type clause = Lit.t list
val add_clause : proof:proof_step -> Lit.t list -> unit
val add_clauses : proof:proof_step -> Lit.t list list -> unit
val add_clause_seq : proof:proof_step -> Lit.t list Sequence.t -> unit
val check : unit -> result
val last_result : unit -> result
val valuation : Lit.t -> bool
val valuation_level : Lit.t -> bool * int
val proved_at_0 : Lit.t -> bool option
val set_printer : Lit.t CCFormat.printer -> unit
val get_proof : unit -> proof
val get_proof_of_lit : Lit.t -> proof
val setup : unit -> unit
type save_level
val root_save_level : save_level
val save : unit -> save_level
val restore : save_level -> unit
end
module Make : functor (Dummy : sig end) -> S
end