Build (method = -2) #dp: 60 Step-3' Graph: 17 vertices and 44 arcs (0.00s) Step-4' Graph: 10 vertices and 30 arcs (0.00s) #V4/#V3 = 0.59 #A4/#A3 = 0.68 Ready! (0.00s) Optimize a model with 20 rows, 31 columns and 77 nonzeros Presolve removed 10 rows and 11 columns Presolve time: 0.00s Presolved: 10 rows, 20 columns, 48 nonzeros Variable types: 0 continuous, 20 integer (0 binary) Found heuristic solution: objective 653.0000000 Found heuristic solution: objective 652.0000000 Found heuristic solution: objective 637.0000000 Found heuristic solution: objective 636.0000000 Optimize a model with 10 rows, 20 columns and 48 nonzeros Presolved: 10 rows, 20 columns, 48 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.700e+01 Factor NZ : 5.500e+01 Factor Ops : 3.850e+02 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.01385004e+03 -1.48102579e+03 9.85e+02 5.55e-17 1.39e+02 0s 1 6.88156061e+02 -4.27942820e+01 2.53e+01 2.22e-16 1.81e+01 0s 2 6.38610996e+02 3.21370767e+02 1.94e+00 7.77e-16 7.42e+00 0s 3 6.12119570e+02 4.21805774e+02 1.33e-01 6.94e-17 4.43e+00 0s 4 5.81170647e+02 5.61961543e+02 4.10e-05 6.94e-17 4.47e-01 0s 5 5.79145742e+02 5.78966020e+02 5.68e-14 8.63e-17 4.18e-03 0s 6 5.79000000e+02 5.79000000e+02 8.53e-14 1.11e-16 1.22e-08 0s 7 5.79000000e+02 5.79000000e+02 4.55e-13 3.33e-16 1.22e-11 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 5.79000000e+02 Root relaxation: objective 5.790000e+02, 14 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 579.0000000 579.00000 0.0% - 0s Explored 0 nodes (14 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: 161 x [1] 77 x [2] 63 x [2, 9] 17 x [3] 22 x [3, 8] 16 x [3, 10] 6 x [4, 10] 97 x [5, 8, 10] 74 x [6, 7] 46 x [6, 10]