diff --git a/interp/grid/__init__.py b/interp/grid/__init__.py
index b806b98..3fa83e9 100644
--- a/interp/grid/__init__.py
+++ b/interp/grid/__init__.py
@@ -58,7 +58,7 @@ class grid(object):
       attempts += 1
 
       if attempts > MAX_SEARCH_COUNT:
-        raise Exception("Is the search becoming exhaustive?")
+        raise Exception("Is the search becoming exhaustive? (%d attempts)" % attempts)
 
       cur_cell = cells_to_check.pop(0)
       checked_cells.append(cur_cell)