Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:04:08 2013

Optimize a model with 2140 rows, 7020 columns and 18010 nonzeros
Presolve removed 20 rows and 30 columns
Presolve time: 0.18s
Presolved: 2120 rows, 6990 columns, 13980 nonzeros
Variable types: 5000 continuous, 1990 integer (1990 binary)

Root relaxation: objective 2.387367e+04, 241 iterations, 0.00 seconds

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

     0     0 23873.6700    0    1          - 23873.6700     -      -    0s
     0     0 23874.4128    0    2          - 23874.4128     -      -    0s
     0     0 23874.4348    0    2          - 23874.4348     -      -    0s
     0     0 23874.4348    0    2          - 23874.4348     -      -    0s
H    0     0                    24071.914133 23874.4348  0.82%     -    0s
     0     1 23889.8407    0    2 24071.9141 23889.8407  0.76%     -    0s
*   20     3              20    23950.729422 23950.7294   0.0%   2.5    0s

Cutting planes:
  Gomory: 1
  Flow cover: 2

Explored 21 nodes (722 simplex iterations) in 0.51 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.395072942228e+04, best bound 2.395072942228e+04, gap 0.0%