Build (method = -2) #dp: 1227 Step-3' Graph: 100 vertices and 293 arcs (0.01s) Step-4' Graph: 4 vertices and 101 arcs (0.01s) #V4/#V3 = 0.04 #A4/#A3 = 0.34 Ready! (0.01s) Optimize a model with 54 rows, 102 columns and 302 nonzeros Presolve removed 54 rows and 102 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 3.000000000000e+01, best bound 3.000000000000e+01, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 30 Solution: 1 x [21, 41] 1 x [21, 40] 1 x [37, 44] 1 x [35, 44] 1 x [34, 39] 1 x [33, 46] 1 x [30, 32] 1 x [28, 32] 1 x [26, 27] 1 x [23, 26] 1 x [19, 20] 1 x [19, 45] 1 x [11, 16] 1 x [5, 14] 1 x [13, 43] 1 x [10, 42] 1 x [10, 38] 1 x [9, 36] 1 x [8, 31] 1 x [4, 29] 1 x [4, 25] 1 x [2, 24] 1 x [1, 22] 1 x [1, 18] 1 x [17, 50] 1 x [15, 50] 1 x [12, 49] 1 x [7, 48] 1 x [6, 48] 1 x [3, 47]