public String toString() {
			final List children = ssaGraph.children(node);

			String s = "<" + node + ", hash=" + hash;

			final Iterator iter = children.iterator();

			while (iter.hasNext()) {
				final Node child = (Node) iter.next();
				s += ", " + child + "{" + child.valueNumber() + "}";
			}

			s += ">";

			return s;
		}