Build (method = -2) #dp: 1173 Step-3' Graph: 95 vertices and 278 arcs (0.01s) Step-4' Graph: 4 vertices and 96 arcs (0.01s) #V4/#V3 = 0.04 #A4/#A3 = 0.35 Ready! (0.01s) Optimize a model with 51 rows, 97 columns and 287 nonzeros Presolve removed 51 rows and 97 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 [19, 26] 1 x [15, 19] 1 x [11, 23] 1 x [10, 17] 1 x [16, 40] 1 x [14, 24] 1 x [13, 47] 1 x [12, 46] 1 x [9, 45] 1 x [8, 32] 1 x [7, 42] 1 x [5, 6] 1 x [6, 35] 1 x [4, 34] 1 x [4, 33] 1 x [3, 31] 1 x [2, 30] 1 x [1, 29] 1 x [28, 44] 1 x [27, 43] 1 x [25, 41] 1 x [22, 39] 1 x [21, 38] 1 x [20, 37] 1 x [18, 36]