Build (method = -2) #dp: 1095 Step-3' Graph: 91 vertices and 265 arcs (0.01s) Step-4' Graph: 4 vertices and 91 arcs (0.01s) #V4/#V3 = 0.04 #A4/#A3 = 0.34 Ready! (0.01s) Optimize a model with 49 rows, 92 columns and 273 nonzeros Presolve removed 49 rows and 92 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: 0.02 seconds Gurobi run time: 0.00 seconds Total run time: 0.02 seconds Objective: 60 Solution: 1 x [36, 45] 1 x [32, 44] 2 x [13, 44] 7 x [18, 43] 5 x [1, 42] 2 x [9, 41] 2 x [6, 40] 1 x [5, 39] 3 x [12, 38] 3 x [8, 37] 4 x [20, 35] 2 x [3, 34] 2 x [2, 33] 6 x [19, 31] 1 x [13, 30] 1 x [12, 29] 2 x [17, 28] 2 x [15, 27] 1 x [9, 26] 1 x [8, 25] 2 x [14, 24] 3 x [16, 23] 1 x [6, 22] 2 x [11, 21] 1 x [5, 10] 1 x [3, 7] 1 x [2, 4]