DB((dbg, LEVEL_4, "\treject coloring for"));
list_for_each_entry_safe(co_mst_irn_t, n, temp, nodes, list) {
DB((dbg, LEVEL_4, " %+F", n->irn));
DB((dbg, LEVEL_4, "\treject coloring for"));
list_for_each_entry_safe(co_mst_irn_t, n, temp, nodes, list) {
DB((dbg, LEVEL_4, " %+F", n->irn));