Build (method = -2) #dp: 89 Step-3' Graph: 9 vertices and 35 arcs (0.00s) Step-4' Graph: 7 vertices and 31 arcs (0.00s) #V4/#V3 = 0.78 #A4/#A3 = 0.89 Ready! (0.00s) Optimize a model with 26 rows, 32 columns and 88 nonzeros Presolve removed 26 rows and 32 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 1.700000000000e+02, best bound 1.700000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 170 Solution: 7 x [12] 9 x [15] 1 x [7, 13] 1 x [5, 13] 13 x [4] 35 x [17] 15 x [3] 11 x [10] 4 x [8, 13] 13 x [9] 2 x [2, 13] 12 x [19] 11 x [1, 16] 7 x [6] 1 x [1, 6] 18 x [18] 5 x [1, 14] 5 x [11, 11]