Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:33:13 2013

Optimize a model with 2043 rows, 72687 columns and 3689463 nonzeros
Presolve removed 32 rows and 301 columns (presolve time = 6s) ...
Presolve removed 42 rows and 525 columns (presolve time = 11s) ...
Presolve removed 42 rows and 525 columns
Presolve time: 13.66s
Presolved: 2001 rows, 72162 columns, 3659449 nonzeros
Variable types: 0 continuous, 72162 integer (72162 binary)
Found heuristic solution: objective 40424.000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    7838    2.4528267e+04   5.154633e+02   0.000000e+00      5s
   12038    2.5138771e+04   6.546940e+02   0.000000e+00     10s
   15398    2.5270501e+04   1.178921e+03   0.000000e+00     15s
   18198    2.5325444e+04   2.233746e+03   0.000000e+00     20s
   20438    2.5344200e+04   6.850000e+02   0.000000e+00     25s
   20735    2.5345000e+04   0.000000e+00   0.000000e+00     26s

Root relaxation: objective 2.534500e+04, 20735 iterations, 26.09 seconds

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

*    0     0               0    25345.000000 25345.0000   0.0%     -   40s

Explored 0 nodes (20735 simplex iterations) in 40.42 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.534500000000e+04, best bound 2.534500000000e+04, gap 0.0%