Build (method = -2) #dp: 654 Step-3' Graph: 22 vertices and 158 arcs (0.00s) Step-4' Graph: 4 vertices and 122 arcs (0.00s) #V4/#V3 = 0.18 #A4/#A3 = 0.77 Ready! (0.00s) Optimize a model with 64 rows, 123 columns and 366 nonzeros Presolve removed 64 rows and 123 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 1.780000000000e+02, best bound 1.780000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 178 Solution: 2 x [33, 54] 6 x [26, 33] 7 x [29, 32] 8 x [19, 22] 5 x [5, 10] 8 x [4, 20] 8 x [43, 47] 1 x [20, 44] 4 x [18, 44] 3 x [34, 40] 6 x [7, 28] 3 x [36, 49] 8 x [35, 37] 10 x [8, 45] 9 x [2, 38] 8 x [58, 59] 1 x [38, 57] 9 x [1, 55] 7 x [23, 53] 7 x [16, 48] 6 x [11, 46] 4 x [14, 42] 1 x [26, 27] 3 x [9, 25] 2 x [15, 50] 1 x [7, 15] 1 x [1, 3] 4 x [3, 6] 8 x [24, 39] 9 x [31, 60] 2 x [30, 56] 2 x [30, 41] 6 x [13, 21] 1 x [12, 60] 2 x [12, 22] 1 x [43, 51] 1 x [32, 51] 1 x [35, 51] 1 x [23, 51] 1 x [11, 17] 1 x [10, 52]