} catch (BDDException x) {
} catch (ReorderException x) {
    int bdd_constrain(int f, int c) {        int res;        int numReorder = 1;        CHECKa(f, bddfalse);        CHECKa(c, bddfalse);        if (misccache == null) misccache = new OpCache2(cachesize);                again : for (;;) {            try {                INITREF();                miscid = CACHEID_CONSTRAIN << NODE_BITS;                if (numReorder == 0) bdd_disable_reorder();                res = constrain_rec(f, c);                if (numReorder == 0) bdd_enable_reorder();            } catch (BDDException x) {                bdd_checkreorder();                numReorder--;                continue again;            }            break;        }        checkresize();        return res;    }