Build (method = -2) #dp: 74 Step-3' Graph: 13 vertices and 40 arcs (0.00s) Step-4' Graph: 10 vertices and 34 arcs (0.00s) #V4/#V3 = 0.77 #A4/#A3 = 0.85 Ready! (0.00s) Optimize a model with 20 rows, 35 columns and 91 nonzeros Presolve removed 20 rows and 35 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 6.870000000000e+02, best bound 6.870000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 687 Solution: 113 x [5] 32 x [9] 148 x [4, 9] 187 x [1] 17 x [1, 3] 42 x [10] 3 x [7, 10] 32 x [7, 8] 64 x [2, 8] 49 x [6, 6]