Build (method = -2) #dp: 1102 Step-3' Graph: 92 vertices and 268 arcs (0.01s) Step-4' Graph: 4 vertices and 92 arcs (0.01s) #V4/#V3 = 0.04 #A4/#A3 = 0.34 Ready! (0.01s) Optimize a model with 49 rows, 93 columns and 276 nonzeros Presolve removed 49 rows and 93 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 [6, 45] 1 x [3, 44] 3 x [18, 43] 1 x [19, 42] 1 x [18, 41] 3 x [14, 40] 3 x [12, 39] 3 x [11, 38] 4 x [19, 37] 3 x [21, 36] 1 x [14, 35] 5 x [22, 34] 2 x [4, 33] 1 x [13, 32] 2 x [1, 31] 4 x [13, 30] 1 x [12, 29] 2 x [10, 28] 2 x [8, 27] 4 x [9, 26] 2 x [5, 25] 4 x [20, 24] 1 x [11, 23] 1 x [9, 17] 1 x [6, 16] 1 x [4, 15] 1 x [3, 7] 1 x [1, 2]