us2i(sho) + 65536 * i = 0 ⊦ i = 0 ∧ s2i(sho) = 0
Used simplifier rules: ushort-zero-01: ⊦ us2i(sho) = 0 ↔ s2i(sho) = 0;% ⊦ i + j = j + i;% ⊦ i + j + i0 = (i + j) + i0;% ⊦ i + 0 = i;