X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fcomponents%2Fng_kernel%2FnCicReduction.ml;h=aa7f84ad660428a9109e47fcf02fc97a81365f24;hb=2b837ca9e298eb44eee95d9ca0e331c577785dcb;hp=1815ceedfcf5c87e9d387068ffbfb039c76763ff;hpb=68dbcd02022874a025a9444aa1125b0458816fbb;p=helm.git

diff --git a/helm/software/components/ng_kernel/nCicReduction.ml b/helm/software/components/ng_kernel/nCicReduction.ml
index 1815ceedf..aa7f84ad6 100644
--- a/helm/software/components/ng_kernel/nCicReduction.ml
+++ b/helm/software/components/ng_kernel/nCicReduction.ml
@@ -164,7 +164,7 @@ module Reduction(RS : Strategy) = struct
         | (_, _, C.Const (Ref.Ref (_,Ref.Con (_,j,_))),[]) ->
             aux (k, e, List.nth pl (j-1), s)
         | (_, _, C.Const (Ref.Ref (_,Ref.Con (_,j,lno))), s')->
-          let _,params = HExtlib.split_nth lno s' in
+          let _,params = HExtlib.split_nth "NR 1" lno s' in
           aux (k, e, List.nth pl (j-1), params@s)
         | _ -> config, true)
    in
@@ -253,7 +253,7 @@ let are_convertible ~metasenv ~subst =
          let relevance = E.get_relevance r1 in
          let relevance = match r1 with
              | Ref.Ref (_,Ref.Con (_,_,lno)) ->
-                 let _,relevance = HExtlib.split_nth lno relevance in
+                 let _,relevance = HExtlib.split_nth "NR 2" lno relevance in
                    HExtlib.mk_list false lno @ relevance
              | _ -> relevance
          in
@@ -265,13 +265,13 @@ let are_convertible ~metasenv ~subst =
 	       | HExtlib.FailureAt fail ->
 	         let relevance = 
                    !get_relevance ~metasenv ~subst context hd1 tl1 in
-	         let _,relevance = HExtlib.split_nth fail relevance in
+	         let _,relevance = HExtlib.split_nth "NR 3" fail relevance in
 	         let b,relevance = (match relevance with
 	           | [] -> assert false
 	           | b::tl -> b,tl) in
 	         if (not b) then
-	           let _,tl1 = HExtlib.split_nth (fail+1) tl1 in
-	           let _,tl2 = HExtlib.split_nth (fail+1) tl2 in
+	           let _,tl1 = HExtlib.split_nth "NR 4" (fail+1) tl1 in
+	           let _,tl2 = HExtlib.split_nth "NR 5" (fail+1) tl2 in
 	             try
                         HExtlib.list_forall_default3
                         (fun t1 t2 b -> not b || aux true context t1 t2)