Gurobi 5.0.1 (linux64) logging started Mon Feb  4 17:53:00 2013

Optimize a model with 1999 rows, 65118 columns and 3500925 nonzeros
Presolve removed 13 rows and 58 columns (presolve time = 5s) ...
Presolve removed 13 rows and 58 columns
Presolve time: 7.76s
Presolved: 1986 rows, 65060 columns, 3498600 nonzeros
Variable types: 0 continuous, 65060 integer (65060 binary)
Found heuristic solution: objective 30521.000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    7432    2.2328690e+04   1.453745e+03   0.000000e+00      5s
   10652    2.2590913e+04   5.418497e+02   0.000000e+00     10s
   13592    2.2684621e+04   2.353203e+02   0.000000e+00     15s
   15692    2.2708662e+04   4.202485e+02   0.000000e+00     20s
   16473    2.2711000e+04   0.000000e+00   0.000000e+00     23s

Root relaxation: objective 2.271100e+04, 16473 iterations, 22.62 seconds

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

*    0     0               0    22711.000000 22711.0000   0.0%     -   30s

Explored 0 nodes (16473 simplex iterations) in 30.95 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.271100000000e+04, best bound 2.271100000000e+04, gap 0.0%