Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:01:05 2013

Optimize a model with 18963 rows, 18533 columns and 74003 nonzeros
Presolve removed 570 rows and 0 columns
Presolve time: 0.10s
Presolved: 18393 rows, 18533 columns, 72863 nonzeros
Variable types: 18490 continuous, 43 integer (43 binary)

Root relaxation: objective 4.747804e+04, 3649 iterations, 0.30 seconds

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

     0     0 47478.0435    0    1          - 47478.0435     -      -    0s
H    0     0                    47479.000000 47478.0435  0.00%     -    0s

Explored 0 nodes (3649 simplex iterations) in 0.48 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.747900000000e+04, best bound 4.747804347826e+04, gap 0.0020%