Build (method = -2) #dp: 1321 Step-3' Graph: 106 vertices and 310 arcs (0.01s) Step-4' Graph: 4 vertices and 106 arcs (0.01s) #V4/#V3 = 0.04 #A4/#A3 = 0.34 Ready! (0.01s) Optimize a model with 56 rows, 107 columns and 318 nonzeros Presolve removed 56 rows and 107 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: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 50 Solution: 3 x [23, 52] 4 x [26, 51] 3 x [16, 50] 1 x [29, 49] 1 x [24, 48] 1 x [19, 47] 1 x [12, 46] 1 x [10, 45] 3 x [1, 44] 1 x [7, 43] 1 x [6, 42] 1 x [5, 41] 2 x [28, 40] 3 x [30, 39] 2 x [22, 38] 1 x [29, 37] 2 x [20, 36] 1 x [28, 35] 2 x [14, 34] 2 x [32, 33] 1 x [26, 31] 1 x [24, 27] 1 x [23, 25] 1 x [21, 22] 1 x [18, 20] 1 x [17, 19] 1 x [15, 16] 1 x [13, 14] 1 x [11, 12] 1 x [9, 10] 1 x [7, 8] 1 x [4, 6] 1 x [3, 5] 1 x [1, 2]