i % j < i0, abs(i % j) < j, 0 < j, i0 + j ≤ 1, 0 ≤ i0 ⊦
Used simplifier rules: forward-le-01: ⊦ i ≤ j ∧ 0 ≤ i → 0 ≤ j; (forward) from specification int-abs% ⊦ i < j ↔ ¬ j ≤ i; (ss)