Gurobi 5.0.1 (linux64) logging started Wed Apr 24 12:37:25 2013

Optimize a model with 2090 rows, 361190 columns and 722190 nonzeros
Presolve time: 1.80s
Presolved: 2090 rows, 361190 columns, 722190 nonzeros
Variable types: 361000 continuous, 190 integer (190 binary)

Root relaxation: objective 3.995868e+05, 11644 iterations, 1.49 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0 399586.807    0    5          - 399586.807     -      -    3s
H    0     0                    435779.00000 399586.807  8.31%     -    5s
H    0     0                    401034.00000 399586.807  0.36%     -    6s
     0     0 399744.901    0    4 401034.000 399744.901  0.32%     -    6s
     0     0 399744.901    0    5 401034.000 399744.901  0.32%     -    8s
     0     0 399745.020    0    4 401034.000 399745.020  0.32%     -    9s
     0     0 399757.913    0    1 401034.000 399757.913  0.32%     -   10s
     0     0 399757.913    0    1 401034.000 399757.913  0.32%     -   10s
     0     2 399760.470    0    1 401034.000 399760.470  0.32%     -   11s
    21    13 399981.655   20    1 401034.000 399836.066  0.30%  64.5   15s
H   22    10                    400404.00000 399836.066  0.14%  61.5   15s
H   24    12                    400394.00000 399836.066  0.14%  59.0   15s
*   26    13              24    400187.00000 399836.066  0.09%  55.6   15s
*   28    10              23    400167.00000 399836.066  0.08%  55.7   15s
*   59    13              17    400096.00000 399910.920  0.05%  73.0   18s

Cutting planes:
  Implied bound: 112
  Flow cover: 4

Explored 71 nodes (23603 simplex iterations) in 19.57 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000960000000e+05, best bound 4.000757826077e+05, gap 0.0051%