Build (method = -2) #dp: 1043 Step-3' Graph: 88 vertices and 257 arcs (0.00s) Step-4' Graph: 4 vertices and 89 arcs (0.00s) #V4/#V3 = 0.05 #A4/#A3 = 0.35 Ready! (0.00s) Optimize a model with 48 rows, 90 columns and 266 nonzeros Presolve removed 48 rows and 90 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 [38, 42] 1 x [34, 38] 1 x [31, 43] 1 x [27, 37] 1 x [25, 37] 1 x [24, 35] 1 x [20, 35] 1 x [4, 17] 1 x [16, 30] 1 x [15, 30] 1 x [13, 14] 1 x [10, 13] 1 x [2, 11] 1 x [1, 9] 1 x [5, 41] 1 x [39, 40] 1 x [29, 36] 1 x [28, 33] 1 x [23, 32] 1 x [21, 26] 1 x [6, 19] 1 x [12, 18] 1 x [3, 12] 1 x [8, 44] 1 x [7, 22]