Graph I. N = {0, 1, 2, 3, 4, 5, 6, 7} No = {0} Nf = {7} E = {(0,1), (1,2), (1,7), (2,3), (2,4), (3,2), (4,5), (4,6), (5,6), (6,1)} def (0) = def (3) = use(5) = use(7) = {x} Test Paths: t1 = t2 = [0, 1, 7] [0, 1, 2, 4, 6, 1, 7] t3 = [0, 1, 2, 4, 5, 6, 1, 7] t4 = [0, 1, 2, 3, 2, 4, 6, 1, 7] t5 = +6 = [0, 1, 2, 3, 2, 3, 2, 4, 5, 6, 1, 7] [0, 1, 2, 3, 2, 4, 6, 1, 2, 4, 5, 6, 1, 7]