Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:01:08 2013

Optimize a model with 2095 rows, 70264 columns and 3887059 nonzeros
Presolve removed 41 rows and 162 columns (presolve time = 5s) ...
Presolve removed 52 rows and 383 columns (presolve time = 10s) ...
Presolve removed 53 rows and 405 columns
Presolve time: 15.23s
Presolved: 2042 rows, 69859 columns, 3860521 nonzeros
Variable types: 0 continuous, 69859 integer (69859 binary)
Found heuristic solution: objective 39477.000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    7762    2.6656343e+04   1.112136e+03   0.000000e+00      5s
   11170    2.6940089e+04   7.933944e+03   0.000000e+00     10s
   13442    2.6998963e+04   8.346307e+02   0.000000e+00     15s
   15430    2.7023997e+04   8.529884e+01   0.000000e+00     20s
   15701    2.7024000e+04   0.000000e+00   0.000000e+00     22s

Root relaxation: objective 2.702400e+04, 15701 iterations, 21.56 seconds

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

*    0     0               0    27024.000000 27024.0000   0.0%     -   37s

Explored 0 nodes (15701 simplex iterations) in 37.45 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.702399999998e+04, best bound 2.702399999998e+04, gap 0.0%