mirror of
https://github.com/c-cube/sidekick.git
synced 2025-12-05 19:00:33 -05:00
74 lines
2.9 KiB
OCaml
74 lines
2.9 KiB
OCaml
(**************************************************************************)
|
|
(* *)
|
|
(* Cubicle *)
|
|
(* Combining model checking algorithms and SMT solvers *)
|
|
(* *)
|
|
(* Mohamed Iguernelala *)
|
|
(* Universite Paris-Sud 11 *)
|
|
(* *)
|
|
(* Copyright 2011. This file is distributed under the terms of the *)
|
|
(* Apache Software License version 2.0 *)
|
|
(* *)
|
|
(**************************************************************************)
|
|
|
|
module Make (L : Log_intf.S)(F : Formula_intf.S)
|
|
(Th : Theory_intf.S with type formula = F.t and type proof = F.proof) : sig
|
|
(** Functor to create a SMT Solver parametrised by the atomic
|
|
formulas and a theory. *)
|
|
|
|
exception Unsat
|
|
|
|
module St : Solver_types.S
|
|
with type formula = F.t
|
|
and type proof = F.proof
|
|
|
|
module Proof : Res.S
|
|
with type atom = St.atom
|
|
and type clause = St.clause
|
|
and type lemma = Th.proof
|
|
|
|
val solve : unit -> unit
|
|
(** Try and solves the current set of assumptions.
|
|
@return () if the current set of clauses is satisfiable
|
|
@raise Unsat if a toplevel conflict is found *)
|
|
|
|
val assume : ?tag:int -> F.t list list -> unit
|
|
(** Add the list of clauses to the current set of assumptions.
|
|
Modifies the sat solver state in place.
|
|
@raise Unsat if a conflict is detect when adding the clauses *)
|
|
|
|
val eval : F.t -> bool
|
|
(** Returns the valuation of a formula in the current state
|
|
of the sat solver. *)
|
|
|
|
val hyps : unit -> St.clause Vec.t
|
|
(** Returns the vector of assumptions used by the solver. May be slightly different
|
|
from the clauses assumed because of top-level simplification of clauses. *)
|
|
|
|
val history : unit -> St.clause Vec.t
|
|
(** Returns the history of learnt clauses, in the right order. *)
|
|
|
|
val unsat_conflict : unit -> St.clause option
|
|
(** Returns the unsat clause found at the toplevel, if it exists (i.e if
|
|
[solve] has raised [Unsat]) *)
|
|
|
|
type level
|
|
(** Abstract notion of assumption level. *)
|
|
|
|
val base_level : level
|
|
(** Level with no assumption at all, corresponding to the empty solver *)
|
|
|
|
val current_level : unit -> level
|
|
(** The current level *)
|
|
|
|
val push : unit -> level
|
|
(** Create a new level that extends the previous one. *)
|
|
|
|
val pop : level -> unit
|
|
(** Go back to the given level, forgetting every assumption added since.
|
|
@raise Invalid_argument if the current level is below the argument *)
|
|
|
|
val clear : unit -> unit
|
|
(** Return to level {!base_level} *)
|
|
end
|
|
|