Branch Prediction strange results

[Kagamin]

            if (i % 4 == 1) {
                if (i % 4 == 0) {
                    counter1++;
                } else {
                    counter2++;
                }
            } else {
                if (i % 4 == 2) {
                    counter3++;
                } else {
                    counter4++;
                }
            }
this is incorrect