Build (method = -2) #dp: 63 Step-3' Graph: 16 vertices and 42 arcs (0.00s) Step-4' Graph: 13 vertices and 36 arcs (0.00s) #V4/#V3 = 0.81 #A4/#A3 = 0.86 Ready! (0.00s) Optimize a model with 23 rows, 37 columns and 93 nonzeros Presolve removed 23 rows and 37 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 8.300000000000e+01, best bound 8.300000000000e+01, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 83 Solution: 9 x [10] 11 x [2] 10 x [9] 9 x [3] 16 x [7] 13 x [5] 1 x [8] 9 x [1, 8] 2 x [6, 8] 3 x [4, 4, 6]