Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:26:19 2013

Optimize a model with 32 rows, 522 columns and 5551 nonzeros
Presolve removed 12 rows and 12 columns
Presolve time: 0.01s
Presolved: 20 rows, 510 columns, 5027 nonzeros
Variable types: 501 continuous, 9 integer (9 binary)

Root relaxation: objective 3.887419e+03, 15 iterations, 0.00 seconds

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

     0     0 3887.41929    0    8          - 3887.41929     -      -    0s
     0     0 3887.47983    0    8          - 3887.47983     -      -    0s
     0     0 3887.48114    0    9          - 3887.48114     -      -    0s
     0     0 3887.48239    0    9          - 3887.48239     -      -    0s
     0     0 3887.57995    0    3          - 3887.57995     -      -    0s
H    0     0                    3887.5966059 3887.57995  0.00%     -    0s

Cutting planes:
  Implied bound: 2

Explored 0 nodes (39 simplex iterations) in 0.08 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.887596605944e+03, best bound 3.887579954199e+03, gap 0.0004%