Build (method = -2) #dp: 2600 Step-3' Graph: 140 vertices and 413 arcs (0.01s) Step-4' Graph: 4 vertices and 141 arcs (0.01s) #V4/#V3 = 0.03 #A4/#A3 = 0.34 Ready! (0.01s) Optimize a model with 74 rows, 142 columns and 422 nonzeros Presolve removed 74 rows and 142 columns Presolve time: 0.00s Explored 0 nodes (0 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 5.000000000000e+01, best bound 5.000000000000e+01, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.00 seconds Total run time: 0.02 seconds Objective: 50 Solution: 1 x [3, 44] 1 x [43, 67] 1 x [24, 34] 1 x [2, 24] 1 x [40, 61] 1 x [15, 58] 1 x [1, 68] 2 x [45, 68] 1 x [35, 51] 1 x [32, 33] 1 x [33, 70] 1 x [29, 31] 1 x [26, 30] 1 x [29, 69] 1 x [25, 28] 1 x [18, 27] 1 x [26, 65] 1 x [25, 64] 1 x [14, 23] 1 x [13, 22] 1 x [11, 21] 1 x [5, 20] 1 x [19, 67] 1 x [18, 62] 1 x [17, 63] 1 x [16, 61] 1 x [14, 57] 1 x [13, 54] 1 x [12, 60] 1 x [11, 52] 1 x [10, 59] 1 x [9, 58] 1 x [8, 56] 1 x [7, 55] 1 x [6, 53] 1 x [5, 50] 1 x [4, 51] 1 x [49, 67] 2 x [53, 66] 1 x [48, 63] 1 x [47, 61] 1 x [46, 60] 1 x [42, 59] 1 x [41, 58] 1 x [39, 56] 1 x [38, 55] 1 x [37, 53] 1 x [36, 51]