Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:11:36 2013

Optimize a model with 5070 rows, 15260 columns and 40505 nonzeros
Presolve removed 10 rows and 15 columns
Presolve time: 0.28s
Presolved: 5060 rows, 15245 columns, 30490 nonzeros
Variable types: 10250 continuous, 4995 integer (4995 binary)

Root relaxation: objective 1.174557e+04, 38 iterations, 0.00 seconds

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

     0     0 11745.5748    0    1          - 11745.5748     -      -    0s
     0     0 11745.6411    0    2          - 11745.6411     -      -    0s
     0     0 11745.6437    0    2          - 11745.6437     -      -    0s
     0     0 11745.6437    0    2          - 11745.6437     -      -    0s
     0     2 11745.6754    0    2          - 11745.6754     -      -    1s
   546   103 11783.0432  546    1          - 11774.1265     -    1.7    5s
*  605    83             605    11811.443122 11774.1265  0.32%   1.7    5s
*  641   110              72    11790.507870 11774.1299  0.14%   1.8    5s
*  679   135              73    11790.251943 11774.2186  0.14%   1.8    5s
*  680   134              72    11790.179381 11774.2186  0.14%   1.8    5s
*  715   150              72    11789.850468 11774.2630  0.13%   1.9    5s
H  745    90                    11782.843796 11774.3071  0.07%   1.9    6s
  1304    72 11776.8410   67    2 11782.8438 11776.1096  0.06%   2.0   10s
* 1471    43              88    11779.580643 11776.1096  0.03%   2.8   10s

Cutting planes:
  Gomory: 1
  Flow cover: 2

Explored 2783 nodes (7366 simplex iterations) in 14.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.177958064306e+04, best bound 1.177841139062e+04, gap 0.0099%