Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:10:24 2013

Optimize a model with 25550 rows, 25050 columns and 100050 nonzeros
Presolve removed 1119 rows and 0 columns
Presolve time: 0.15s
Presolved: 24431 rows, 25050 columns, 97812 nonzeros
Variable types: 25000 continuous, 50 integer (50 binary)

Root relaxation: objective 4.876500e+04, 3507 iterations, 0.32 seconds

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

     0     0 48765.0000    0    1          - 48765.0000     -      -    0s
H    0     0                    48783.000000 48765.0000  0.04%     -    0s
H    0     0                    48766.000000 48765.0000  0.00%     -    0s

Explored 0 nodes (3507 simplex iterations) in 0.65 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.876600000000e+04, best bound 4.876500000000e+04, gap 0.0021%