let debug = ref false
let debug_print ?(depth=0) s =
if !debug then prerr_endline (String.make depth '\t'^Lazy.force s) else ()
-let print ?(depth=0) s =
+(* let print= debug_print *)
+ let print ?(depth=0) s =
prerr_endline (String.make depth '\t'^Lazy.force s)
+
let debug_do f = if !debug then f () else ()
open Continuationals.Stack
NTactics.distribute_tac (auto_paramod ~params) status
;;
+(*************** subsumption ****************)
+module IntSet = Set.Make(struct type t = int let compare = compare end)
+(* exceptions *)
+
+let get_sgoalty status g =
+ let _,_,metasenv,subst,_ = status#obj in
+ try
+ let _, ctx, ty = NCicUtils.lookup_meta g metasenv in
+ let ty = NCicUntrusted.apply_subst subst ctx ty in
+ let ctx = NCicUntrusted.apply_subst_context
+ ~fix_projections:true subst ctx
+ in
+ NTacStatus.mk_cic_term ctx ty
+ with NCicUtils.Meta_not_found _ as exn -> fail ~exn (lazy "get_sgoalty")
+;;
+
+let deps status g =
+ let gty = get_sgoalty status g in
+ metas_of_term status gty
+;;
+
+let menv_closure status gl =
+ let rec closure acc = function
+ | [] -> acc
+ | x::l when IntSet.mem x acc -> closure acc l
+ | x::l -> closure (IntSet.add x acc) (deps status x @ l)
+ in closure IntSet.empty gl
+;;
+
+let close_wrt_context =
+ List.fold_left
+ (fun ty ctx_entry ->
+ match ctx_entry with
+ | name, NCic.Decl t -> NCic.Prod(name,t,ty)
+ | name, NCic.Def(bo, _) -> NCicSubstitution.subst bo ty)
+;;
+
+let args_for_context ?(k=1) ctx =
+ let _,args =
+ List.fold_left
+ (fun (n,l) ctx_entry ->
+ match ctx_entry with
+ | name, NCic.Decl t -> n+1,NCic.Rel(n)::l
+ | name, NCic.Def(bo, _) -> n+1,l)
+ (k,[]) ctx in
+ args
+
+let constant_for_meta ctx ty i =
+ let name = "cic:/foo"^(string_of_int i)^".con" in
+ let uri = NUri.uri_of_string name in
+ let ty = close_wrt_context ty ctx in
+ (* prerr_endline (NCicPp.ppterm [] [] [] ty); *)
+ let attr = (`Generated,`Definition,`Local) in
+ let obj = NCic.Constant([],name,None,ty,attr) in
+ (* Constant of relevance * string * term option * term * c_attr *)
+ (uri,0,[],[],obj)
+
+(* not used *)
+let refresh metasenv =
+ List.fold_left
+ (fun (metasenv,subst) (i,(iattr,ctx,ty)) ->
+ let ikind = NCicUntrusted.kind_of_meta iattr in
+ let metasenv,j,instance,ty =
+ NCicMetaSubst.mk_meta ~attrs:iattr
+ metasenv ctx ~with_type:ty ikind in
+ let s_entry = i,(iattr, ctx, instance, ty) in
+ let metasenv = List.filter (fun x,_ -> i <> x) metasenv in
+ metasenv,s_entry::subst)
+ (metasenv,[]) metasenv
+
+(* close metasenv returns a ground instance of all the metas in the
+metasenv, insantiatied with axioms, and the list of these axioms *)
+let close_metasenv metasenv subst =
+ (*
+ let metasenv = NCicUntrusted.apply_subst_metasenv subst metasenv in
+ *)
+ let metasenv = NCicUntrusted.sort_metasenv subst metasenv in
+ List.fold_left
+ (fun (subst,objs) (i,(iattr,ctx,ty)) ->
+ let ty = NCicUntrusted.apply_subst subst ctx ty in
+ let ctx =
+ NCicUntrusted.apply_subst_context ~fix_projections:true
+ subst ctx in
+ let (uri,_,_,_,obj) as okind =
+ constant_for_meta ctx ty i in
+ try
+ NCicEnvironment.check_and_add_obj okind;
+ let iref = NReference.reference_of_spec uri NReference.Decl in
+ let iterm =
+ let args = args_for_context ctx in
+ if args = [] then NCic.Const iref
+ else NCic.Appl(NCic.Const iref::args)
+ in
+ (* prerr_endline (NCicPp.ppterm ctx [] [] iterm); *)
+ let s_entry = i, ([], ctx, iterm, ty)
+ in s_entry::subst,okind::objs
+ with _ -> assert false)
+ (subst,[]) metasenv
+;;
+
+let ground_instances status gl =
+ let _,_,metasenv,subst,_ = status#obj in
+ let subset = menv_closure status gl in
+ let submenv = List.filter (fun (x,_) -> IntSet.mem x subset) metasenv in
+(*
+ let submenv = metasenv in
+*)
+ let subst, objs = close_metasenv submenv subst in
+ try
+ List.iter
+ (fun i ->
+ let (_, ctx, t, _) = List.assoc i subst in
+ debug_print (lazy (NCicPp.ppterm ctx [] [] t));
+ List.iter
+ (fun (uri,_,_,_,_) as obj ->
+ NCicEnvironment.invalidate_item (`Obj (uri, obj)))
+ objs;
+ ())
+ gl
+ with
+ Not_found -> assert false
+ (* (ctx,t) *)
+;;
+
+let replace_meta i args target =
+ let rec aux k = function
+ (* TODO: local context *)
+ | NCic.Meta (j,lc) when i = j ->
+ (match args with
+ | [] -> NCic.Rel 1
+ | _ -> let args =
+ List.map (NCicSubstitution.subst_meta lc) args in
+ NCic.Appl(NCic.Rel k::args))
+ | NCic.Meta (j,lc) as m ->
+ (match lc with
+ _,NCic.Irl _ -> m
+ | n,NCic.Ctx l ->
+ NCic.Meta
+ (i,(0,NCic.Ctx
+ (List.map (fun t ->
+ aux k (NCicSubstitution.lift n t)) l))))
+ | t -> NCicUtils.map (fun _ k -> k+1) k aux t
+ in
+ aux 1 target
+;;
+
+let close_wrt_metasenv subst =
+ List.fold_left
+ (fun ty (i,(iattr,ctx,mty)) ->
+ let mty = NCicUntrusted.apply_subst subst ctx mty in
+ let ctx =
+ NCicUntrusted.apply_subst_context ~fix_projections:true
+ subst ctx in
+ let cty = close_wrt_context mty ctx in
+ let name = "foo"^(string_of_int i) in
+ let ty = NCicSubstitution.lift 1 ty in
+ let args = args_for_context ~k:1 ctx in
+ (* prerr_endline (NCicPp.ppterm ctx [] [] iterm); *)
+ let ty = replace_meta i args ty
+ in
+ NCic.Prod(name,cty,ty))
+;;
+
+let close status g =
+ let _,_,metasenv,subst,_ = status#obj in
+ let subset = menv_closure status [g] in
+ let subset = IntSet.remove g subset in
+ let elems = IntSet.elements subset in
+ let _, ctx, ty = NCicUtils.lookup_meta g metasenv in
+ let ty = NCicUntrusted.apply_subst subst ctx ty in
+ print (lazy ("Elements for " ^ (NCicPp.ppterm ctx [] metasenv ty)));
+ print (lazy (String.concat ", " (List.map string_of_int elems)));
+ let submenv = List.filter (fun (x,_) -> IntSet.mem x subset) metasenv in
+ let submenv = List.rev (NCicUntrusted.sort_metasenv subst submenv) in
+(*
+ let submenv = metasenv in
+*)
+ let ty = close_wrt_metasenv subst ty submenv in
+ print (lazy (NCicPp.ppterm ctx [] [] ty));
+ ty
+;;
+
+
+
(* =================================== auto =========================== *)
(****************** AUTO ********************
type fail = goal * cic_term
type candidate = int * Ast.term (* unique candidate number, candidate *)
-module IntSet = Set.Make(struct type t = int let compare = compare end)
-(* exceptions *)
-
exception Gaveup of IntSet.t (* a sublist of unprovable conjunctive
atoms of the input goals *)
exception Proved of #NTacStatus.tac_status
equational_and_applicative_case signature flags s gno depth gty cache
;;
-let deps status g =
- let gty = get_goalty status g in
- metas_of_term status gty
-;;
-
module M =
struct
type t = int
let compare = Pervasives.compare
end
;;
+
module MS = HTopoSort.Make(M)
;;
let gty = get_goalty status g in
let status, gty = apply_subst status (ctx_of gty) gty in
debug_print ~depth (lazy("Depth = " ^ (string_of_int depth)));
- print ~depth (lazy("Attacking goal " ^ (string_of_int g) ^" : "^ppterm status gty));
+ debug_print ~depth (lazy("Attacking goal " ^ (string_of_int g) ^" : "^ppterm status gty));
+ close status g;
(* let closed = metas_of_term status gty = [] in *)
let alternatives, cache =
do_something signature flags status g depth gty cache in
(fun unsat ((_,t),_,_,status,_) ->
let depth' =
if t=(Ast.Implicit `JustOne) then depth else depth+1 in
- print (~depth:depth')
+ debug_print (~depth:depth')
(lazy ("Case: " ^ CicNotationPp.pp_term t));
try auto_clusters flags signature cache
depth' status; unsat
(try auto_clusters flags signature cache
depth status; unsat
with Gaveup f ->
- let debug_print = print in
debug_print ~depth
(lazy ("Unsat1 at depth " ^ (string_of_int depth)
^ ": " ^
(* TODO: cache failures *)
IntSet.union f unsat)
| Gaveup f ->
- let debug_print = print in
debug_print (~depth:depth')
(lazy ("Unsat2 at depth " ^ (string_of_int depth')
^ ": " ^
projects / helm.git / commitdiff