Build (method = -2) #dp: 65 Step-3' Graph: 14 vertices and 39 arcs (0.00s) Step-4' Graph: 7 vertices and 25 arcs (0.00s) #V4/#V3 = 0.50 #A4/#A3 = 0.64 Ready! (0.00s) Optimize a model with 17 rows, 26 columns and 70 nonzeros Presolve removed 8 rows and 8 columns Presolve time: 0.00s Presolved: 9 rows, 18 columns, 48 nonzeros Variable types: 0 continuous, 18 integer (0 binary) Found heuristic solution: objective 997.0000000 Found heuristic solution: objective 648.0000000 Optimize a model with 9 rows, 18 columns and 48 nonzeros Presolved: 9 rows, 18 columns, 48 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.000e+01 Factor NZ : 4.500e+01 Factor Ops : 2.850e+02 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.32313855e+03 -9.12576405e+02 6.27e+02 1.11e-16 1.05e+02 0s 1 8.38685528e+02 2.78041054e+02 1.46e+01 1.67e-16 1.46e+01 0s 2 7.16237375e+02 5.69146453e+02 1.49e+00 4.44e-16 3.69e+00 0s 3 6.52220012e+02 6.39421744e+02 2.85e-02 1.67e-16 3.20e-01 0s 4 6.48116305e+02 6.47917004e+02 1.39e-04 3.33e-16 4.98e-03 0s Barrier performed 4 iterations in 0.00 seconds Objective cutoff exceeded Root relaxation: cutoff, 0 iterations, 0.00 seconds 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 6.480000000000e+02, best bound 6.480000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 648 Solution: 132 x [8] 139 x [9, 10] 1 x [2] 88 x [2, 5] 10 x [2, 10] 112 x [6] 39 x [4] 12 x [3] 5 x [1, 3] 110 x [3, 7]