Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:53:10 2013

Optimize a model with 8148 rows, 7868 columns and 31388 nonzeros
Presolve removed 28 rows and 0 columns
Presolve time: 0.04s
Presolved: 8120 rows, 7868 columns, 31332 nonzeros
Variable types: 7840 continuous, 28 integer (28 binary)

Root relaxation: objective 2.853124e+04, 1051 iterations, 0.05 seconds

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

     0     0 28531.2442    0    2          - 28531.2442     -      -    0s
H    0     0                    28675.000000 28531.2442  0.50%     -    0s
H    0     0                    28605.000000 28531.2442  0.26%     -    0s
     0     0 28532.3173    0    3 28605.0000 28532.3173  0.25%     -    0s
     0     0 28534.5935    0    4 28605.0000 28534.5935  0.25%     -    0s
     0     0 28534.7162    0    4 28605.0000 28534.7162  0.25%     -    0s
     0     0 28585.1633    0    1 28605.0000 28585.1633  0.07%     -    0s
     0     2 28588.4000    0    1 28605.0000 28588.4000  0.06%     -    0s

Cutting planes:
  Gomory: 1
  Flow cover: 1

Explored 3 nodes (1180 simplex iterations) in 0.36 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.860500000000e+04, best bound 2.860500000000e+04, gap 0.0%