Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:53:46 2013

Optimize a model with 16261 rows, 2116 columns and 49726 nonzeros
Presolve removed 3202 rows and 1123 columns
Presolve time: 0.12s
Presolved: 13059 rows, 993 columns, 39733 nonzeros
Variable types: 13 continuous, 980 integer (980 binary)
Found heuristic solution: objective 49906.000000

Root relaxation: objective 4.454368e+04, 1816 iterations, 0.09 seconds

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

     0     0 44543.6846    0    6 49906.0000 44543.6846  10.7%     -    0s
H    0     0                    44549.000000 44543.6846  0.01%     -    0s
H    0     0                    44545.000000 44543.6846  0.00%     -    0s

Explored 0 nodes (1826 simplex iterations) in 0.26 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.454500000000e+04, best bound 4.454400000000e+04, gap 0.0022%