Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:36 2013

Optimize a model with 275 rows, 6275 columns and 12525 nonzeros
Presolve time: 0.01s
Presolved: 275 rows, 6275 columns, 12525 nonzeros
Variable types: 6250 continuous, 25 integer (25 binary)

Root relaxation: objective 2.829937e+04, 420 iterations, 0.00 seconds

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

     0     0 28299.3657    0    4          - 28299.3657     -      -    0s
H    0     0                    28492.000000 28299.3657  0.68%     -    0s
     0     0 28486.9778    0    2 28492.0000 28486.9778  0.02%     -    0s
     0     0 28489.7227    0    2 28492.0000 28489.7227  0.01%     -    0s

Cutting planes:
  Implied bound: 28
  Flow cover: 7

Explored 0 nodes (509 simplex iterations) in 0.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.849200000000e+04, best bound 2.848972268908e+04, gap 0.0080%