Build (method = -2) #dp: 794 Step-3' Graph: 78 vertices and 227 arcs (0.01s) Step-4' Graph: 4 vertices and 79 arcs (0.01s) #V4/#V3 = 0.05 #A4/#A3 = 0.35 Ready! (0.01s) Optimize a model with 43 rows, 80 columns and 236 nonzeros Presolve removed 43 rows and 80 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 [12, 37] 1 x [11, 37] 1 x [10, 36] 1 x [9, 36] 1 x [8, 35] 1 x [7, 34] 1 x [6, 26] 1 x [5, 25] 1 x [4, 25] 1 x [3, 24] 1 x [2, 23] 1 x [1, 23] 1 x [18, 39] 1 x [17, 38] 1 x [17, 33] 1 x [17, 32] 1 x [16, 31] 1 x [16, 30] 1 x [16, 29] 1 x [15, 28] 1 x [14, 27] 1 x [14, 22] 1 x [14, 21] 1 x [14, 20] 1 x [13, 19]