Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:43:48 2013

Optimize a model with 1708 rows, 42364 columns and 2516711 nonzeros
Presolve removed 82 rows and 840 columns (presolve time = 5s) ...
Presolve removed 86 rows and 936 columns
Presolve time: 9.04s
Presolved: 1622 rows, 41428 columns, 2455766 nonzeros
Variable types: 0 continuous, 41428 integer (41428 binary)
Found heuristic solution: objective 22197.000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    8362    1.7302688e+04   4.851955e+02   0.000000e+00      5s
   11032    1.7358000e+04   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 1.735800e+04, 11032 iterations, 9.32 seconds

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

*    0     0               0    17358.000000 17358.0000   0.0%     -   18s

Explored 0 nodes (11032 simplex iterations) in 18.78 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.735800000000e+04, best bound 1.735800000000e+04, gap 0.0000%