Build (method = -2) #dp: 1143 Step-3' Graph: 96 vertices and 280 arcs (0.00s) Step-4' Graph: 4 vertices and 96 arcs (0.01s) #V4/#V3 = 0.04 #A4/#A3 = 0.34 Ready! (0.01s) Optimize a model with 51 rows, 97 columns and 288 nonzeros Presolve removed 51 rows and 97 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 6.000000000000e+01, best bound 6.000000000000e+01, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 60 Solution: 2 x [22, 47] 1 x [40, 46] 3 x [24, 45] 4 x [17, 44] 1 x [36, 43] 4 x [9, 42] 2 x [19, 41] 3 x [21, 40] 5 x [4, 39] 1 x [35, 38] 2 x [15, 37] 3 x [16, 36] 3 x [13, 35] 2 x [12, 34] 2 x [11, 33] 2 x [7, 32] 1 x [23, 31] 3 x [10, 31] 1 x [20, 30] 3 x [8, 30] 2 x [2, 29] 3 x [6, 28] 1 x [18, 27] 1 x [14, 27] 3 x [1, 26] 1 x [5, 25] 1 x [3, 25]