Build (method = -2) #dp: 1967 Step-3' Graph: 130 vertices and 383 arcs (0.01s) Step-4' Graph: 4 vertices and 131 arcs (0.01s) #V4/#V3 = 0.03 #A4/#A3 = 0.34 Ready! (0.01s) Optimize a model with 69 rows, 132 columns and 392 nonzeros Presolve removed 69 rows and 132 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 [4, 35] 1 x [2, 3] 1 x [3, 58] 1 x [3, 34] 1 x [1, 48] 1 x [33, 65] 1 x [32, 65] 1 x [57, 64] 1 x [29, 64] 2 x [12, 64] 1 x [22, 63] 1 x [56, 62] 1 x [28, 62] 1 x [21, 61] 1 x [55, 60] 1 x [27, 60] 1 x [53, 59] 1 x [25, 59] 1 x [52, 54] 1 x [24, 54] 1 x [50, 51] 1 x [23, 50] 1 x [48, 49] 1 x [20, 48] 1 x [44, 47] 1 x [32, 46] 1 x [31, 45] 1 x [19, 44] 1 x [30, 43] 1 x [26, 42] 1 x [22, 41] 1 x [21, 40] 1 x [18, 39] 1 x [16, 38] 3 x [32, 37] 1 x [14, 36] 1 x [17, 32] 1 x [15, 31] 1 x [13, 30] 1 x [11, 26] 1 x [10, 22] 1 x [9, 21] 1 x [8, 18] 2 x [7, 18] 1 x [6, 16] 1 x [5, 14]