The purpose of this supplement is to provide the direct outcomes of the proposed procedure for the three examples investigated in the main body of the paper. The exit probabilities from the safe subset $(-pi/2, \pi/2)$ are computed according to the numerical result of our proposed procedure of each power line. The proposed procedure is not shown in detail but referred to as the reference [55] in the reference list of the first part which is from page 1 to page 26 of this PDF document.