us2i(sho) + 65536 * i = 0 ⊦ i = 0, ¬ us2i(sho) ≤ 0 ∧ ¬ i < 0
Used simplifier rules: ⊦ i ≠ j → (i ≤ j ↔ i < j);% ⊦ i + j = j + i;% ⊦ i + j + i0 = (i + j) + i0;