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57 lines
2.3 KiB
OCaml
57 lines
2.3 KiB
OCaml
(**************************************************************************)
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(* *)
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(* Cubicle *)
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(* Combining model checking algorithms and SMT solvers *)
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(* *)
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(* Mohamed Iguernelala *)
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(* Universite Paris-Sud 11 *)
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(* *)
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(* Copyright 2011. This file is distributed under the terms of the *)
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(* Apache Software License version 2.0 *)
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(* *)
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(**************************************************************************)
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module Make (F : Formula_intf.S)
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(St : Solver_types.S with type formula = F.t)
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(Ex : Explanation.S with type atom = St.atom)
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(Th : Theory_intf.S with type formula = F.t and type explanation = Ex.t) :
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sig
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(** Functor to create a SMT Solver parametrised by the atomic
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formulas and a theory. *)
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exception Unsat of St.clause list
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val solve : unit -> unit
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(** Try and solves the current set of assumptions.
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@return () if the current set of clauses is satisfiable
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@raise Unsat if a toplevel conflict is found *)
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val assume : F.t list list -> cnumber:int -> unit
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(** Add the list of clauses to the current set of assumptions.
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Modifies the sat solver state in place.
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@raise Unsat if a conflict is detect when adding the clauses *)
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val eval : F.t -> bool
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(** Returns the valuation of a formula in the current state
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of the sat solver. *)
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type level
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(** Abstract notion of assumption level. *)
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val base_level : level
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(** Level with no assumption at all, corresponding to the empty solver *)
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val current_level : unit -> level
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(** The current level *)
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val push : unit -> level
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(** Create a new level that extends the previous one. *)
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val pop : level -> unit
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(** Go back to the given level, forgetting every assumption added since.
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@raise Invalid_argument if the current level is below the argument *)
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val clear : unit -> unit
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(** Return to level {!base_level} *)
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end
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