Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:04:39 2013

Optimize a model with 2039 rows, 68528 columns and 3673557 nonzeros
Presolve removed 33 rows and 252 columns (presolve time = 6s) ...
Presolve removed 62 rows and 803 columns (presolve time = 11s) ...
Presolve removed 66 rows and 922 columns (presolve time = 15s) ...
Presolve removed 66 rows and 922 columns
Presolve time: 15.33s
Presolved: 1973 rows, 67606 columns, 3622068 nonzeros
Variable types: 0 continuous, 67606 integer (67606 binary)
Found heuristic solution: objective 33867.000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    7256    2.5768184e+04   2.390913e+03   0.000000e+00      5s
   11009    2.6202964e+04   8.634058e+02   0.000000e+00     10s
   14067    2.6324858e+04   7.194011e+02   0.000000e+00     15s
   16430    2.6365147e+04   2.135613e+02   0.000000e+00     20s
   17959    2.6374000e+04   2.000000e+00   0.000000e+00     25s
   18065    2.6374000e+04   0.000000e+00   0.000000e+00     26s

Root relaxation: objective 2.637400e+04, 18065 iterations, 25.62 seconds

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

*    0     0               0    26374.000000 26374.0000   0.0%     -   41s

Explored 0 nodes (18065 simplex iterations) in 41.53 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.637400000000e+04, best bound 2.637400000000e+04, gap 0.0%