Gurobi 5.0.1 (linux64) logging started Wed Apr 24 13:17:06 2013

Optimize a model with 2640 rows, 576240 columns and 1152240 nonzeros
Presolve time: 2.16s
Presolved: 2640 rows, 576240 columns, 1152240 nonzeros
Variable types: 576000 continuous, 240 integer (240 binary)

Root relaxation: objective 5.982297e+05, 18079 iterations, 3.31 seconds

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

     0     0 598229.696    0    5          - 598229.696     -      -    5s
H    0     0                    623292.00000 598229.696  4.02%     -    7s
H    0     0                    599713.00000 598229.696  0.25%     -    9s
     0     0 598495.875    0    4 599713.000 598495.875  0.20%     -   10s
     0     0 598495.875    0    5 599713.000 598495.875  0.20%     -   14s
     0     0 598498.939    0    5 599713.000 598498.939  0.20%     -   15s
     0     0 598533.376    0    3 599713.000 598533.376  0.20%     -   16s
     0     0 598546.571    0    3 599713.000 598546.571  0.19%     -   17s
     0     0 598546.723    0    3 599713.000 598546.723  0.19%     -   17s
     0     0 598546.723    0    3 599713.000 598546.723  0.19%     -   18s
     0     0 598546.723    0    3 599713.000 598546.723  0.19%     -   18s
     0     2 598548.339    0    3 599713.000 598548.339  0.19%     -   20s
*   12     7              11    599342.00000 598812.684  0.09%   136   24s
    14     4 599177.315    1    6 599342.000 598855.180  0.08%   188   25s

Cutting planes:
  Implied bound: 206
  Flow cover: 8

Explored 30 nodes (33669 simplex iterations) in 28.68 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.993420000000e+05, best bound 5.993420000000e+05, gap 0.0%