Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:57:33 2013

Optimize a model with 1600 rows, 76750 columns and 650950 nonzeros
Presolve removed 50 rows and 1250 columns
Presolve time: 1.49s
Presolved: 1550 rows, 75500 columns, 600950 nonzeros
Variable types: 75050 continuous, 450 integer (450 binary)

Root relaxation: objective 1.824192e+05, 2867 iterations, 0.31 seconds

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

     0     0 182419.206    0    7          - 182419.206     -      -    2s
     0     0 182422.333    0    7          - 182422.333     -      -    2s
     0     0 182423.048    0    7          - 182423.048     -      -    3s
     0     0 182423.427    0    7          - 182423.427     -      -    3s
     0     0 182423.427    0    7          - 182423.427     -      -    4s
     0     2 182423.977    0    7          - 182423.977     -      -   12s
    34    36 182870.750   29    7          - 182492.516     -   21.8   15s
*   94    54              84    182908.57915 182492.516  0.23%   9.2   17s
*  121    31              29    182879.22514 182493.952  0.21%   8.5   17s
   245    49 182863.614   17    7 182879.225 182700.678  0.10%   8.3   20s
   505    49 182843.687   18    3 182879.225 182831.929  0.03%   8.3   25s

Cutting planes:
  Flow cover: 3

Explored 654 nodes (8784 simplex iterations) in 27.57 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.828792251419e+05, best bound 1.828624663602e+05, gap 0.0092%