Build (method = -2) #dp: 1559 Step-3' Graph: 114 vertices and 334 arcs (0.01s) Step-4' Graph: 4 vertices and 114 arcs (0.01s) #V4/#V3 = 0.04 #A4/#A3 = 0.34 Ready! (0.01s) Optimize a model with 60 rows, 115 columns and 342 nonzeros Presolve removed 60 rows and 115 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: 2 x [44, 56] 1 x [54, 55] 1 x [24, 54] 1 x [49, 53] 1 x [22, 53] 2 x [34, 52] 4 x [1, 51] 2 x [32, 50] 2 x [25, 48] 2 x [1, 47] 3 x [9, 46] 1 x [35, 45] 4 x [37, 43] 1 x [30, 42] 1 x [28, 41] 1 x [27, 40] 1 x [26, 39] 1 x [23, 38] 1 x [12, 36] 1 x [21, 35] 1 x [20, 34] 1 x [11, 33] 1 x [19, 32] 1 x [4, 31] 1 x [18, 30] 1 x [2, 29] 1 x [17, 28] 1 x [16, 27] 1 x [15, 26] 1 x [14, 25] 1 x [13, 23] 1 x [10, 12] 1 x [8, 11] 1 x [7, 9] 1 x [4, 6] 1 x [2, 5] 1 x [1, 3]