Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:08:48 2013

Optimize a model with 24549 rows, 24059 columns and 96089 nonzeros
Presolve removed 743 rows and 0 columns
Presolve time: 0.13s
Presolved: 23806 rows, 24059 columns, 94603 nonzeros
Variable types: 24010 continuous, 49 integer (49 binary)

Root relaxation: objective 4.816345e+04, 3683 iterations, 0.36 seconds

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

     0     0 48163.4485    0    2          - 48163.4485     -      -    0s
H    0     0                    48658.000000 48163.4485  1.02%     -    0s
H    0     0                    48367.000000 48163.4485  0.42%     -    0s
     0     0 48166.3818    0    3 48367.0000 48166.3818  0.41%     -    0s
     0     0 48166.3818    0    3 48367.0000 48166.3818  0.41%     -    0s
     0     0 48340.3200    0    3 48367.0000 48340.3200  0.06%     -    1s
     0     0 48350.2400    0    2 48367.0000 48350.2400  0.03%     -    1s
     0     0 48350.2400    0    2 48367.0000 48350.2400  0.03%     -    1s
     0     0 48358.0000    0    1 48367.0000 48358.0000  0.02%     -    1s
     0     0 48358.0000    0    1 48367.0000 48358.0000  0.02%     -    1s

Cutting planes:
  Gomory: 1
  Flow cover: 3

Explored 0 nodes (4956 simplex iterations) in 1.82 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.836700000000e+04, best bound 4.836700000000e+04, gap 0.0%