Build (method = -2) #dp: 1045 Step-3' Graph: 89 vertices and 260 arcs (0.01s) Step-4' Graph: 4 vertices and 90 arcs (0.01s) #V4/#V3 = 0.04 #A4/#A3 = 0.35 Ready! (0.01s) Optimize a model with 48 rows, 91 columns and 269 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 2.500000000000e+01, best bound 2.500000000000e+01, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.00 seconds Total run time: 0.02 seconds Objective: 25 Solution: 1 x [17, 18] 1 x [16, 18] 1 x [10, 15] 1 x [10, 14] 1 x [1, 13] 1 x [1, 12] 1 x [11, 44] 1 x [9, 43] 1 x [8, 41] 1 x [7, 41] 1 x [6, 40] 1 x [5, 40] 1 x [4, 35] 1 x [3, 32] 1 x [2, 32] 1 x [31, 42] 1 x [27, 39] 1 x [26, 38] 1 x [25, 37] 1 x [24, 36] 1 x [23, 34] 1 x [22, 33] 1 x [21, 30] 1 x [20, 29] 1 x [19, 28]