Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:26:59 2013

Optimize a model with 2570 rows, 7760 columns and 20505 nonzeros
Presolve removed 10 rows and 15 columns
Presolve time: 0.29s
Presolved: 2560 rows, 7745 columns, 15490 nonzeros
Variable types: 5250 continuous, 2495 integer (2495 binary)

Root relaxation: objective 9.876190e+03, 39 iterations, 0.00 seconds

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

     0     0 9876.18952    0    1          - 9876.18952     -      -    0s
     0     0 9876.39026    0    3          - 9876.39026     -      -    0s
     0     0 9876.41684    0    3          - 9876.41684     -      -    0s
     0     0 9876.41684    0    3          - 9876.41684     -      -    0s
H    0     0                    10002.264596 9876.41684  1.26%     -    0s
     0     2 9876.86569    0    3 10002.2646 9876.86569  1.25%     -    0s
*  123   105             102    9942.9596239 9916.65198  0.26%   1.2    1s
  2048   176 9934.46862   76    3 9942.95962 9934.45595  0.09%   2.7    5s
  6753   306 9941.50717   94    2 9942.95962 9941.50717  0.01%   2.1   10s

Cutting planes:
  Gomory: 1
  Flow cover: 4

Explored 6970 nodes (15515 simplex iterations) in 10.26 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.942959623924e+03, best bound 9.941977055358e+03, gap 0.0099%