Gurobi 5.0.1 (linux64) logging started Mon Feb  4 17:17:15 2013

Optimize a model with 2099 rows, 62351 columns and 3877081 nonzeros
Presolve removed 48 rows and 258 columns (presolve time = 5s) ...
Presolve removed 75 rows and 746 columns (presolve time = 11s) ...
Presolve removed 77 rows and 807 columns
Presolve time: 14.46s
Presolved: 2022 rows, 61544 columns, 3823435 nonzeros
Variable types: 0 continuous, 61544 integer (61544 binary)
Found heuristic solution: objective 33671.000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    7614    2.5167601e+04   5.320739e+02   0.000000e+00      5s
   11280    2.5434172e+04   5.512622e+02   0.000000e+00     10s
   13818    2.5495996e+04   5.392853e+02   0.000000e+00     15s
   15933    2.5520950e+04   7.535000e+01   0.000000e+00     20s
   16621    2.5525000e+04   0.000000e+00   0.000000e+00     22s

Root relaxation: objective 2.552500e+04, 16621 iterations, 21.98 seconds

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

*    0     0               0    25525.000000 25525.0000   0.0%     -   37s

Explored 0 nodes (16621 simplex iterations) in 37.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.552500000000e+04, best bound 2.552500000000e+04, gap 0.0000%