Build (method = -2) #dp: 93 Step-3' Graph: 22 vertices and 58 arcs (0.00s) Step-4' Graph: 4 vertices and 22 arcs (0.00s) #V4/#V3 = 0.18 #A4/#A3 = 0.38 Ready! (0.00s) Optimize a model with 14 rows, 23 columns and 66 nonzeros Presolve removed 14 rows and 23 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 5.000000000000e+02, best bound 5.000000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 500 Solution: 21 x [2, 10] 1 x [2, 4] 110 x [2, 5] 139 x [7, 9] 1 x [3, 4] 88 x [1, 3] 10 x [3, 9] 112 x [6, 8] 15 x [6, 10] 3 x [4, 10]