+ //1 1 0 0 1 1 (1 0 1 -> 1 0 1)
+ BDDVAR relvars[6] = {i * 3, i * 3 + 1, i * 3 + 2, i * 3 + 3, i * 3 + 4, i * 3 + 5};
+ BDDSET relvarset = sylvan_set_fromarray(relvars, 6);
+ uint8_t rel_enc[6] = {1, 1, 0, 0, 1, 1};
+ t = sylvan_union_cube(t, relvarset, rel_enc);