Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:38:50 2013

Optimize a model with 1665 rows, 39766 columns and 2381491 nonzeros
Presolve removed 77 rows and 602 columns (presolve time = 5s) ...
Presolve removed 80 rows and 661 columns
Presolve time: 7.77s
Presolved: 1585 rows, 39105 columns, 2339334 nonzeros
Variable types: 0 continuous, 39105 integer (39105 binary)
Found heuristic solution: objective 20614.000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    8303    1.6094303e+04   1.032351e+02   0.000000e+00      5s
    9972    1.6118000e+04   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 1.611800e+04, 9972 iterations, 7.60 seconds

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

*    0     0               0    16118.000000 16118.0000   0.0%     -   15s

Explored 0 nodes (9972 simplex iterations) in 15.77 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.611800000000e+04, best bound 1.611800000000e+04, gap 0.0%