Build (method = -2) #dp: 1000 Step-3' Graph: 86 vertices and 251 arcs (0.00s) Step-4' Graph: 4 vertices and 87 arcs (0.00s) #V4/#V3 = 0.05 #A4/#A3 = 0.35 Ready! (0.00s) Optimize a model with 47 rows, 88 columns and 260 nonzeros Presolve removed 47 rows and 88 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: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 25 Solution: 1 x [28, 39] 1 x [28, 29] 1 x [23, 26] 1 x [23, 24] 1 x [12, 22] 1 x [12, 21] 1 x [10, 20] 1 x [9, 19] 1 x [3, 18] 1 x [3, 17] 1 x [16, 42] 1 x [15, 41] 1 x [14, 40] 1 x [13, 40] 1 x [11, 37] 1 x [8, 36] 1 x [7, 35] 1 x [6, 33] 1 x [5, 32] 1 x [4, 31] 1 x [2, 30] 1 x [1, 30] 1 x [27, 43] 1 x [27, 38] 1 x [25, 34]