| istore0[n] = indexblock(indx, lax, m), n ∈ istore0, n ∈ istore0 → crash(istore1, istore0)[n].ref-size = (as | n).size ⊦ m = (as | n).size |
crash(istore1, istore0)[n].ref-size = (as | n).size, istore0[n] = indexblock(indx, lax, m), n ∈ istore0 ⊦ m = (as | n).size