Build (method = -2) #dp: 1066 Step-3' Graph: 90 vertices and 262 arcs (0.01s) Step-4' Graph: 4 vertices and 90 arcs (0.01s) #V4/#V3 = 0.04 #A4/#A3 = 0.34 Ready! (0.01s) Optimize a model with 48 rows, 91 columns and 270 nonzeros Presolve removed 48 rows and 91 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 [2, 44] 3 x [39, 43] 2 x [20, 42] 2 x [18, 41] 1 x [6, 40] 1 x [4, 38] 3 x [17, 37] 4 x [1, 36] 2 x [16, 35] 1 x [3, 34] 2 x [15, 33] 3 x [12, 32] 2 x [14, 31] 1 x [7, 30] 3 x [11, 29] 5 x [7, 28] 4 x [19, 27] 1 x [6, 26] 6 x [14, 25] 3 x [9, 24] 1 x [4, 24] 3 x [5, 23] 2 x [8, 22] 1 x [3, 21] 1 x [2, 13] 1 x [1, 10]