Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:07:04 2013

Optimize a model with 23568 rows, 23088 columns and 92208 nonzeros
Presolve removed 2411 rows and 0 columns
Presolve time: 0.14s
Presolved: 21157 rows, 23088 columns, 87386 nonzeros
Variable types: 23040 continuous, 48 integer (48 binary)

Root relaxation: objective 4.902100e+04, 2769 iterations, 0.21 seconds

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

     0     0 49021.0000    0    1          - 49021.0000     -      -    0s
H    0     0                    49022.000000 49021.0000  0.00%     -    0s

Explored 0 nodes (2789 simplex iterations) in 0.44 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.902200000000e+04, best bound 4.902100000000e+04, gap 0.0020%