sidekick/src/sat/Sidekick_sat.ml
2018-05-25 20:23:09 -05:00

45 lines
1.3 KiB
OCaml

(** Main API *)
module Theory_intf = Theory_intf
module type S = Solver_intf.S
type negated = Theory_intf.negated =
| Negated
| Same_sign
type ('formula, 'proof) res = ('formula, 'proof) Theory_intf.res =
| Sat
(** The current set of assumptions is satisfiable. *)
| Unsat of 'formula list * 'proof
(** The current set of assumptions is *NOT* satisfiable, and here is a
theory tautology (with its proof), for which every literal is false
under the current assumptions. *)
(** Type returned by the theory. Formulas in the unsat clause must come from the
current set of assumptions, i.e must have been encountered in a slice. *)
type 'form sat_state = 'form Solver_intf.sat_state = Sat_state of {
eval : 'form -> bool;
eval_level : 'form -> bool * int;
iter_trail : ('form -> unit) -> unit;
}
type ('clause, 'proof) unsat_state = ('clause, 'proof) Solver_intf.unsat_state = Unsat_state of {
unsat_conflict : unit -> 'clause;
get_proof : unit -> 'proof;
}
type 'clause export = 'clause Solver_intf.export = {
clauses : 'clause Vec.t;
}
type ('form, 'proof) actions = ('form,'proof) Theory_intf.actions
type 'form slice_actions = 'form Theory_intf.slice_actions
module Make = Solver.Make
(**/**)
module Vec = Vec
module Log = Log
(**/**)