Build (method = -2) #dp: 42 Step-3' Graph: 14 vertices and 35 arcs (0.00s) Step-4' Graph: 6 vertices and 19 arcs (0.00s) #V4/#V3 = 0.43 #A4/#A3 = 0.54 Ready! (0.00s) Optimize a model with 16 rows, 20 columns and 52 nonzeros Presolve removed 10 rows and 10 columns Presolve time: 0.00s Presolved: 6 rows, 10 columns, 24 nonzeros Variable types: 0 continuous, 10 integer (0 binary) Found heuristic solution: objective 871.0000000 Found heuristic solution: objective 634.0000000 Found heuristic solution: objective 633.0000000 Optimize a model with 6 rows, 10 columns and 24 nonzeros Presolve removed 1 rows and 2 columns Presolved: 5 rows, 8 columns, 20 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 8.000e+00 Factor NZ : 1.500e+01 Factor Ops : 5.500e+01 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 9.71728702e+02 -1.42292547e+02 2.95e+02 1.11e-16 1.10e+02 0s 1 6.55763052e+02 4.17504243e+02 2.84e-14 1.11e-16 1.33e+01 0s 2 5.83223825e+02 5.60517409e+02 5.68e-14 2.22e-16 1.26e+00 0s 3 5.78627682e+02 5.78432639e+02 0.00e+00 2.22e-16 1.08e-02 0s 4 5.78500128e+02 5.78499933e+02 7.11e-14 6.34e-17 1.08e-05 0s 5 5.78500000e+02 5.78500000e+02 7.11e-14 3.33e-16 1.08e-11 0s Barrier solved model in 5 iterations and 0.00 seconds Optimal objective 5.78500000e+02 Root relaxation: objective 5.785000e+02, 4 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 578.50000 0 3 633.00000 578.50000 8.61% - 0s H 0 0 579.0000000 578.50000 0.09% - 0s Explored 0 nodes (4 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 5.790000000000e+02, best bound 5.790000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 579 Solution: 1 x [1] 52 x [2] 104 x [3] 8 x [4, 9] 11 x [4, 10] 95 x [5, 10] 175 x [6, 9] 1 x [7] 54 x [7, 8] 22 x [7, 10] 56 x [8, 9]