diff -r 5155c7c45233 -r 015c56cc1864 src/Tools/auto_solve.ML
--- a/src/Tools/auto_solve.ML	Wed Feb 18 17:02:38 2009 -0800
+++ b/src/Tools/auto_solve.ML	Thu Feb 19 23:55:10 2009 +1100
@@ -23,7 +23,7 @@
   structure FT = FindTheorems;
 
   val auto = ref false;
-  val auto_time_limit = ref 5000;
+  val auto_time_limit = ref 2500;
 
   fun seek_solution int state = let
       val ctxt = Proof.context_of state;