Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:12:14 2013

Optimize a model with 26571 rows, 26061 columns and 104091 nonzeros
Presolve removed 3928 rows and 0 columns
Presolve time: 0.16s
Presolved: 22643 rows, 26061 columns, 96235 nonzeros
Variable types: 26010 continuous, 51 integer (51 binary)

Root relaxation: objective 5.502723e+04, 4604 iterations, 0.45 seconds

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

     0     0 55027.2303    0    2          - 55027.2303     -      -    0s
H    0     0                    56278.000000 55027.2303  2.22%     -    0s
     0     0 55028.3965    0    3 56278.0000 55028.3965  2.22%     -    0s
     0     2 55034.0266    0    3 56278.0000 55034.0266  2.21%     -    1s
H    1     1                    56125.098361 55034.0266  1.94%   0.0    1s
*    2     2               2    55172.000000 55155.0000  0.03%   149    1s

Cutting planes:
  Gomory: 1

Explored 4 nodes (5037 simplex iterations) in 1.47 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.517200000000e+04, best bound 5.517200000000e+04, gap 0.0%