Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:17:43 2013

Optimize a model with 29754 rows, 29214 columns and 116694 nonzeros
Presolve removed 1026 rows and 0 columns
Presolve time: 0.16s
Presolved: 28728 rows, 29214 columns, 114642 nonzeros
Variable types: 29160 continuous, 54 integer (54 binary)

Root relaxation: objective 4.907420e+04, 4786 iterations, 0.58 seconds

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

     0     0 49074.2035    0    4          - 49074.2035     -      -    0s
H    0     0                    49933.000000 49074.2035  1.72%     -    0s
     0     0 49079.0977    0    7 49933.0000 49079.0977  1.71%     -    1s
     0     0 49079.2211    0    7 49933.0000 49079.2211  1.71%     -    1s
H    0     0                    49222.000000 49079.2211  0.29%     -    1s
     0     0 49132.5443    0    4 49222.0000 49132.5443  0.18%     -    2s
     0     0 49153.9200    0    5 49222.0000 49153.9200  0.14%     -    2s
     0     0 49154.5997    0    5 49222.0000 49154.5997  0.14%     -    2s
     0     0 49154.6220    0    5 49222.0000 49154.6220  0.14%     -    2s
     0     0 49159.5957    0    1 49222.0000 49159.5957  0.13%     -    2s
     0     2 49160.1653    0    1 49222.0000 49160.1653  0.13%     -    2s
*    3     2               3    49199.000000 49173.2971  0.05%  40.7    2s

Cutting planes:
  Gomory: 3
  Flow cover: 3

Explored 6 nodes (6644 simplex iterations) in 2.85 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.919900000000e+04, best bound 4.919900000000e+04, gap 0.0%