this is the report constraint : ****************************************
Report : constraint
-all_violators
-verbose
Design : top
Version: Z-2007.03-SP5
Date : Mon Sep 28 18:18:10 2009
****************************************
Net: u_poff_part/clk2enc_mg_clk
multiport_net 0.00
- actual cost 1.00
------------------------------
Violation -1.00 (VIOLATED)