sig
module X : sig type reason = Diagnostic.reason_int end
type state
type var = int
type value = True | False | Unknown
type lit
val lit_of_var : var -> bool -> lit
val initialize_problem :
?print_var:(Format.formatter -> int -> unit) ->
?buffer:bool -> int -> state
val copy : state -> state
val propagate : state -> unit
val protect : state -> unit
val reset : state -> unit
val assignment : state -> value array
val assignment_true : state -> var list
val add_rule : state -> lit array -> X.reason list -> unit
val associate_vars : state -> lit -> var list -> unit
val solve_all : (state -> unit) -> state -> var -> bool
val solve : state -> var -> bool
val solve_lst : state -> var list -> bool
val collect_reasons : state -> var -> X.reason list
val collect_reasons_lst : state -> var list -> X.reason list
val dump : state -> (int * bool) list list
val debug : bool -> unit
val stats : state -> unit
end