From 2b80895770829206d04600abbc029b4ddfad33f9 Mon Sep 17 00:00:00 2001
From: Andrea Asperti <andrea.asperti@unibo.it>
Date: Wed, 2 Dec 2009 10:06:47 +0000
Subject: [PATCH] The new paramodulation functions instantiated over nCic.

---
 .../ng_paramodulation/nCicParamod.ml          | 102 ++++++++++++------
 .../ng_paramodulation/nCicParamod.mli         |  14 ++-
 2 files changed, 82 insertions(+), 34 deletions(-)

diff --git a/helm/software/components/ng_paramodulation/nCicParamod.ml b/helm/software/components/ng_paramodulation/nCicParamod.ml
index 6096d88da..a96d3cc0a 100644
--- a/helm/software/components/ng_paramodulation/nCicParamod.ml
+++ b/helm/software/components/ng_paramodulation/nCicParamod.ml
@@ -11,6 +11,10 @@
 
 (* $Id: orderings.ml 9869 2009-06-11 22:52:38Z denes $ *)
 
+NCicBlob.set_default_eqP()
+;;
+NCicProof.set_default_sig()
+;;
 
 module B(C : NCicBlob.NCicContext): Orderings.Blob 
   with type t = NCic.term and type input = NCic.term 
@@ -18,6 +22,38 @@ module B(C : NCicBlob.NCicContext): Orderings.Blob
 
 module NCicParamod(C : NCicBlob.NCicContext) = Paramod.Paramod(B(C))
 
+let readback rdb metasenv subst context (bag,i,l) =
+(*
+  List.iter (fun x ->
+     print_endline (Pp.pp_unit_clause ~margin:max_int
+     (fst(Terms.M.find x bag)))) l; 
+*)
+  let stamp = Unix.gettimeofday () in
+  let proofterm = NCicProof.mk_proof bag i l in
+    prerr_endline (Printf.sprintf "Got proof term in %fs"
+		     (Unix.gettimeofday() -. stamp));
+  let metasenv, proofterm = 
+    let rec aux k metasenv = function
+      | NCic.Meta _ as t -> metasenv, t
+      | NCic.Implicit _ -> 
+          let metasenv, i, _, _ =
+            NCicMetaSubst.mk_meta metasenv context `IsTerm 
+          in
+            metasenv, NCic.Meta (i,(k,NCic.Irl (List.length context)))
+      | t -> NCicUntrusted.map_term_fold_a 
+          (fun _ k -> k+1) k aux metasenv t
+    in
+      aux 0 metasenv proofterm
+  in
+  prerr_endline "so far 1";
+  prerr_endline (NCicPp.ppterm ~metasenv ~subst ~context proofterm);
+  let metasenv, subst, proofterm, _prooftype = 
+    NCicRefiner.typeof 
+      (rdb#set_coerc_db NCicCoercion.empty_db) 
+      metasenv subst context proofterm None
+  in
+    proofterm, metasenv, subst
+
 let nparamod rdb metasenv subst context t table =
   let module C =
     struct 
@@ -41,38 +77,42 @@ let nparamod rdb metasenv subst context t table =
       ~g_passives:goals ~passives (bag,maxvar) 
   with 
   | P.Error _ | P.GaveUp | P.Timeout _ -> []
-  | P.Unsatisfiable solutions ->
-  List.map 
-    (fun (bag,i,l) ->
-      (* List.iter (fun x ->
-        print_endline (Pp.pp_unit_clause ~margin:max_int
-          (fst(Terms.M.find x bag)))) l; *)
-      let stamp = Unix.gettimeofday () in
-      let proofterm = NCicProof.mk_proof bag i l in
-      prerr_endline (Printf.sprintf "Got proof term in %fs"
-        (Unix.gettimeofday() -. stamp));
-      let metasenv, proofterm = 
-        let rec aux k metasenv = function
-          | NCic.Meta _ as t -> metasenv, t
-          | NCic.Implicit _ -> 
-              let metasenv, i, _, _ =
-                NCicMetaSubst.mk_meta metasenv context `IsTerm 
-              in
-              metasenv, NCic.Meta (i,(k,NCic.Irl (List.length context)))
-          | t -> NCicUntrusted.map_term_fold_a 
-                  (fun _ k -> k+1) k aux metasenv t
-        in
-         aux 0 metasenv proofterm
-      in
-      let metasenv, subst, proofterm, _prooftype = 
-        NCicRefiner.typeof 
-          (rdb#set_coerc_db NCicCoercion.empty_db) 
-          metasenv subst context proofterm None
-      in
-      proofterm, metasenv, subst)
-    solutions
+  | P.Unsatisfiable solutions -> 
+      List.map (readback rdb metasenv subst context) solutions
 ;;
   
-  
+module EmptyC = 
+  struct
+    let metasenv = []
+    let subst = []
+    let context = []
+  end
+
+module P = NCicParamod(EmptyC)
 
+type state = P.state
+let empty_state = P.empty_state
+
+let forward_infer_step s t ty =
+  let bag = P.bag_of_state s in 
+  let bag,clause = P.mk_passive bag (t,ty) in
+    if Terms.is_eq_clause clause then
+      P.forward_infer_step (P.replace_bag s bag) clause 0
+    else (prerr_endline "not and equality"; s)
+;;
+
+let index_obj s uri =
+  let obj = NCicEnvironment.get_checked_obj uri in
+  match obj with
+    | (_,_,[],[],NCic.Constant(_,_,Some(t),ty,_)) ->
+	forward_infer_step s t ty
+    | _ -> s
+;;
+
+let fast_eq_check rdb metasenv subst context s goal =
+  match P.fast_eq_check s goal with
+  | P.Error _ | P.GaveUp | P.Timeout _ -> []
+  | P.Unsatisfiable solutions -> 
+      List.map (readback rdb metasenv subst context) solutions
+;;
 
diff --git a/helm/software/components/ng_paramodulation/nCicParamod.mli b/helm/software/components/ng_paramodulation/nCicParamod.mli
index 067235158..0572f8c64 100644
--- a/helm/software/components/ng_paramodulation/nCicParamod.mli
+++ b/helm/software/components/ng_paramodulation/nCicParamod.mli
@@ -11,11 +11,19 @@
 
 (* $Id: orderings.ml 9869 2009-06-11 22:52:38Z denes $ *)
 
-module NCicParamod(C : NCicBlob.NCicContext) : Paramod.Paramod
-with type t = NCic.term and type input = NCic.term 
-
 val nparamod :
   #NRstatus.status ->
   NCic.metasenv -> NCic.substitution -> NCic.context -> 
     (NCic.term * NCic.term) -> (NCic.term * NCic.term) list ->
      (NCic.term * NCic.metasenv * NCic.substitution) list
+
+type state 
+val empty_state: state
+val forward_infer_step: state -> NCic.term -> NCic.term -> state
+val index_obj: state -> NUri.uri -> state
+val fast_eq_check : 
+  #NRstatus.status ->
+  NCic.metasenv -> NCic.substitution -> NCic.context ->
+  state -> 
+  (NCic.term * NCic.term) -> 
+  (NCic.term * NCic.metasenv * NCic.substitution) list
-- 
2.39.2