X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Focaml%2Ftactics%2FautoTactic.ml;h=85c5c54be30300beb690e0d20a7c946afe11925a;hb=e6b28085c97ae7b9bd3f3262b105f6b84f42b047;hp=d46aa6949c9f074526ca0ab312f96e6f8f90db22;hpb=cb790b3f03194d3155841431d17cfea1245fea9d;p=helm.git

diff --git a/helm/ocaml/tactics/autoTactic.ml b/helm/ocaml/tactics/autoTactic.ml
index d46aa6949..85c5c54be 100644
--- a/helm/ocaml/tactics/autoTactic.ml
+++ b/helm/ocaml/tactics/autoTactic.ml
@@ -308,20 +308,9 @@ let term_is_equality = ref
   (fun term -> debug_print "term_is_equality E` DUMMY!!!!"; false);;
 
 
-let auto_tac ?(depth=default_depth) ?(width=default_width) ~(dbd:Mysql.dbd) () =
+let auto_tac ?(depth=default_depth) ?(width=default_width) ?paramodulation ~(dbd:Mysql.dbd) () =
   let auto_tac dbd (proof, goal) =
-    let paramodulation_ok =
-      let _, metasenv, _, _ = proof in
-      let _, _, meta_goal = CicUtil.lookup_meta goal metasenv in
-      !term_is_equality meta_goal
-    in
-    if paramodulation_ok then (
-      debug_print "USO PARAMODULATION...";
-      try
-        !paramodulation_tactic dbd (proof, goal)
-      with e ->
-        raise (ProofEngineTypes.Fail "paramodulation failure")
-    ) else
+    let normal_auto () = 
       let universe = MetadataQuery.signature_of_goal ~dbd (proof, goal) in
       Hashtbl.clear inspected_goals;
       debug_print "Entro in Auto";
@@ -340,6 +329,23 @@ let auto_tac ?(depth=default_depth) ?(width=default_width) ~(dbd:Mysql.dbd) () =
           debug_print (Printf.sprintf "tempo: %.9f\n" (t2 -. t1));
 	  (proof,[])
       | _ -> assert false
+    in
+    let paramodulation_ok =
+      match paramodulation with
+      | None -> false
+      | Some _ ->
+          let _, metasenv, _, _ = proof in
+          let _, _, meta_goal = CicUtil.lookup_meta goal metasenv in
+          !term_is_equality meta_goal
+    in
+    if paramodulation_ok then (
+      debug_print "USO PARAMODULATION...";
+(*       try *)
+        !paramodulation_tactic dbd (proof, goal)
+(*       with ProofEngineTypes.Fail _ -> *)
+(*         normal_auto () *)
+    ) else
+      normal_auto () 
   in
   ProofEngineTypes.mk_tactic (auto_tac dbd)
 ;;