Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:50:39 2013

Optimize a model with 3200 rows, 32600 columns and 70050 nonzeros
Presolve removed 100 rows and 150 columns
Presolve time: 0.37s
Presolved: 3100 rows, 32450 columns, 64900 nonzeros
Variable types: 30000 continuous, 2450 integer (2450 binary)

Root relaxation: objective 2.246016e+05, 3746 iterations, 0.29 seconds

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

     0     0 224601.597    0    1          - 224601.597     -      -    0s
     0     0 224601.597    0    1          - 224601.597     -      -    0s
     0     0 224601.597    0    1          - 224601.597     -      -    1s
     0     0 224601.597    0    1          - 224601.597     -      -    1s
     0     0 224601.597    0    1          - 224601.597     -      -    1s
     0     0 224601.597    0    1          - 224601.597     -      -    1s
H    0     0                    225463.64729 224601.597  0.38%     -    1s
     0     2 224623.327    0    1 225463.647 224623.327  0.37%     -    1s
H   54    33                    225325.82640 224717.255  0.27%  13.0    2s
   201    36 225193.215  197    1 225325.826 224717.255  0.27%   5.3    5s
   643    36 225285.593  639    1 225325.826 224717.255  0.27%   3.1   10s
*  677    12               4    224847.24808 224746.928  0.04%   3.3   10s

Cutting planes:
  Flow cover: 5

Explored 692 nodes (6445 simplex iterations) in 10.74 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.248472480793e+05, best bound 2.248339625157e+05, gap 0.0059%