Build (method = -2) #dp: 1147 Step-3' Graph: 93 vertices and 271 arcs (0.01s) Step-4' Graph: 4 vertices and 93 arcs (0.01s) #V4/#V3 = 0.04 #A4/#A3 = 0.34 Ready! (0.01s) Optimize a model with 50 rows, 94 columns and 279 nonzeros Presolve removed 50 rows and 94 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 [29, 46] 3 x [1, 45] 2 x [21, 44] 3 x [24, 43] 3 x [18, 42] 3 x [14, 41] 3 x [12, 40] 2 x [20, 39] 3 x [11, 38] 3 x [2, 37] 2 x [17, 36] 4 x [19, 35] 2 x [13, 34] 2 x [10, 33] 5 x [22, 32] 1 x [4, 31] 2 x [8, 30] 1 x [1, 30] 2 x [7, 28] 2 x [6, 27] 1 x [24, 26] 2 x [5, 26] 4 x [15, 25] 1 x [19, 23] 1 x [15, 16] 1 x [4, 9] 1 x [1, 3]