| j ≠ 0, i % j < 0, i < 0, i0 < 0 ⊦ i % j + abs(j) = i0 |%| abs(j) ↔ i |%| j = i0 |%| j, j = 0 |
i < 0, i0 < 0, i % j < 0 ⊦ i % j + abs(j) = i0 |%| abs(j) ↔ i |%| j = i0 |%| j, j = 0
Used simplifier rules: forward-le-02: ⊦ j < i ∧ i ≤ 0 → j < 0; (forward) from specification int-abs