Build (method = -2) #dp: 1169 Step-3' Graph: 98 vertices and 286 arcs (0.01s) Step-4' Graph: 4 vertices and 98 arcs (0.01s) #V4/#V3 = 0.04 #A4/#A3 = 0.34 Ready! (0.01s) Optimize a model with 52 rows, 99 columns and 294 nonzeros Presolve removed 52 rows and 99 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: 2 x [19, 48] 1 x [32, 47] 4 x [18, 46] 1 x [32, 45] 1 x [32, 44] 2 x [10, 43] 3 x [22, 42] 2 x [8, 41] 3 x [17, 40] 3 x [13, 39] 5 x [14, 38] 4 x [4, 37] 3 x [9, 36] 6 x [23, 35] 1 x [31, 34] 3 x [5, 33] 2 x [1, 32] 1 x [28, 31] 1 x [26, 31] 1 x [24, 31] 1 x [21, 31] 1 x [20, 30] 1 x [16, 30] 1 x [15, 30] 1 x [14, 30] 1 x [12, 29] 1 x [11, 29] 1 x [7, 27] 1 x [6, 27] 1 x [3, 25] 1 x [2, 25]