sig
val check_strategy : Smt_sig.S.check_strategy
val get_time : unit -> float
val get_calls : unit -> int
val clear : unit -> unit
val assume : id:int -> Smt_sig.S.Formula.t -> unit
val check : unit -> unit
val entails : Smt_sig.S.Formula.t -> bool
val push : unit -> unit
val pop : unit -> unit
end