i0 ≤ i1, j0 < i, 0 < i, 0 ≤ j0, 0 ≤ i1, i1 * i + j0 < i * i0 ⊦
Used simplifier rules: lels-01: ⊦ ¬ i ≤ j ↔ j < i; from specification int-abs