Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:37:53 2013

Optimize a model with 1871 rows, 66284 columns and 3066072 nonzeros
Presolve removed 21 rows and 0 columns
Presolve time: 3.93s
Presolved: 1850 rows, 66284 columns, 3065227 nonzeros
Variable types: 0 continuous, 66284 integer (66284 binary)
Found heuristic solution: objective 33049.000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    8434    2.1889584e+04   4.627297e+02   0.000000e+00      5s
   12557    2.2207907e+04   1.171151e+03   0.000000e+00     10s
   15483    2.2270263e+04   2.985585e+03   0.000000e+00     15s
   17143    2.2283000e+04   0.000000e+00   0.000000e+00     19s

Root relaxation: objective 2.228300e+04, 17143 iterations, 18.94 seconds

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

*    0     0               0    22283.000000 22283.0000   0.0%     -   23s

Explored 0 nodes (17143 simplex iterations) in 23.42 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.228300000000e+04, best bound 2.228300000000e+04, gap 0.0%