Gurobi 5.0.1 (linux64) logging started Sun Dec  9 06:11:49 2012

Optimize a model with 3000 rows, 2970 columns and 11330 nonzeros
Presolve removed 144 rows and 24 columns
Presolve time: 0.02s
Presolved: 2856 rows, 2946 columns, 11026 nonzeros
Variable types: 2770 continuous, 176 integer (176 binary)

Root relaxation: objective 6.283601e+04, 282 iterations, 0.00 seconds

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

     0     0 62836.0118    0   12          - 62836.0118     -      -    0s
H    0     0                    64090.000000 62836.0118  1.96%     -    0s
     0     0 62858.6538    0   21 64090.0000 62858.6538  1.92%     -    0s
H    0     0                    63338.000000 62858.6538  0.76%     -    0s
     0     2 62898.9162    0   21 63338.0000 62898.9162  0.69%     -    0s
*    5     5               4    62998.000000 62947.1456  0.08%   3.8    0s

Cutting planes:
  Gomory: 5
  Flow cover: 4

Explored 11 nodes (335 simplex iterations) in 0.10 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.299800000000e+04, best bound 6.299800000000e+04, gap 0.0%