Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:41:09 2013

Optimize a model with 10160 rows, 21030 columns and 72050 nonzeros
Presolve removed 10 rows and 10 columns
Presolve time: 0.23s
Presolved: 10150 rows, 21020 columns, 62040 nonzeros
Variable types: 11020 continuous, 10000 integer (10000 binary)

Root relaxation: objective 1.836170e+04, 186 iterations, 0.01 seconds

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

     0     0 18361.7044    0    2          - 18361.7044     -      -    1s
     0     0 18365.8323    0    2          - 18365.8323     -      -    1s
     0     0 18367.4466    0    2          - 18367.4466     -      -    1s
     0     0 18367.8173    0    3          - 18367.8173     -      -    1s
     0     0 18368.6581    0    2          - 18368.6581     -      -    1s
     0     0 18369.0366    0    2          - 18369.0366     -      -    1s
     0     0 18369.3591    0    4          - 18369.3591     -      -    1s
     0     0 18370.5326    0    2          - 18370.5326     -      -    1s
     0     0 18371.3097    0    2          - 18371.3097     -      -    1s
     0     0 18372.0157    0    2          - 18372.0157     -      -    2s
     0     0 18372.3801    0    8          - 18372.3801     -      -    2s
     0     0 18372.6656    0    2          - 18372.6656     -      -    2s
     0     0 18372.9180    0    4          - 18372.9180     -      -    2s
     0     0 18373.5157    0    8          - 18373.5157     -      -    2s
     0     0 18373.7444    0    4          - 18373.7444     -      -    2s
     0     0 18374.0953    0    7          - 18374.0953     -      -    2s
     0     0 18374.2297    0    4          - 18374.2297     -      -    2s
     0     0 18374.3876    0   11          - 18374.3876     -      -    2s
     0     0 18374.8745    0    2          - 18374.8745     -      -    2s
     0     0 18374.9203    0    7          - 18374.9203     -      -    2s
     0     0 18375.2624    0    4          - 18375.2624     -      -    2s
     0     0 18375.3821    0    9          - 18375.3821     -      -    2s
     0     0 18375.8140    0    2          - 18375.8140     -      -    2s
     0     0 18375.8220    0    4          - 18375.8220     -      -    3s
     0     0 18375.9788    0   21          - 18375.9788     -      -    3s
     0     0 18376.1307    0   18          - 18376.1307     -      -    3s
     0     0 18376.2534    0    2          - 18376.2534     -      -    3s
     0     0 18376.2676    0   17          - 18376.2676     -      -    3s
     0     0 18376.2765    0   17          - 18376.2765     -      -    3s
     0     0 18376.2972    0   17          - 18376.2972     -      -    3s
     0     0 18376.2972    0   17          - 18376.2972     -      -    3s
     0     2 18376.2972    0   17          - 18376.2972     -      -    5s
*   41    13              21    18418.580004 18418.2649  0.00%  79.4    5s

Cutting planes:
  Gomory: 1
  Implied bound: 31
  Flow cover: 7

Explored 42 nodes (3784 simplex iterations) in 5.93 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.841858000407e+04, best bound 1.841826489005e+04, gap 0.0017%