| istore0[n] = indexblock(indx, lax, m), crash(istore1, istore0)[n] = indexblock(indx0, lax0, m0), m0 = (as | n).size, n ∈ istore0 ⊦ m = (as | n).size |
crash(istore1, istore0)[n] = indexblock(indx0, lax0, (as | n).size), istore0[n] = indexblock(indx, lax, m), n ∈ istore0 ⊦ m = (as | n).size