Build (method = -2) #dp: 652 Step-3' Graph: 49 vertices and 172 arcs (0.00s) Step-4' Graph: 4 vertices and 82 arcs (0.00s) #V4/#V3 = 0.08 #A4/#A3 = 0.48 Ready! (0.00s) Optimize a model with 44 rows, 83 columns and 246 nonzeros Presolve removed 44 rows and 83 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 2.860000000000e+02, best bound 2.860000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 286 Solution: 9 x [36, 36] 11 x [17, 24] 2 x [10, 24] 4 x [3, 33] 17 x [25, 34] 6 x [12, 16] 5 x [15, 39] 11 x [34, 39] 25 x [7, 20] 23 x [18, 40] 17 x [14, 15] 9 x [4, 29] 8 x [5, 21] 4 x [5, 13] 1 x [6, 37] 5 x [31, 40] 3 x [27, 35] 17 x [8, 22] 2 x [9, 19] 7 x [9, 26] 31 x [6, 32] 25 x [2, 13] 24 x [23, 38] 6 x [1, 11] 1 x [11, 33] 5 x [30, 38] 1 x [13, 30] 6 x [7, 30] 1 x [10, 28]