} catch (BDDException x) {
} catch (ReorderException x) {
    int bdd_not(int r) {        int res;        int numReorder = 1;        CHECKa(r, bddfalse);        if (singlecache == null) singlecache = new OpCache1(cachesize); // not_rec()                again : for (;;) {            try {                INITREF();                if (numReorder == 0) bdd_disable_reorder();                res = not_rec(r);                if (numReorder == 0) bdd_enable_reorder();            } catch (BDDException x) {                bdd_checkreorder();                numReorder--;                continue again;            }            break;        }        checkresize();        return res;    }