Gurobi 5.0.1 (linux64) logging started Mon Feb  4 17:53:39 2013

Optimize a model with 1975 rows, 64384 columns and 3429449 nonzeros
Presolve removed 34 rows and 0 columns
Presolve time: 4.26s
Presolved: 1941 rows, 64384 columns, 3426357 nonzeros
Variable types: 0 continuous, 64384 integer (64384 binary)
Found heuristic solution: objective 33077.000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    7636    2.3803540e+04   1.382817e+03   0.000000e+00      5s
   12052    2.4344767e+04   2.068273e+03   0.000000e+00     10s
   14674    2.4445073e+04   1.075477e+03   0.000000e+00     15s
   16882    2.4478725e+04   1.019850e+02   0.000000e+00     20s
   18676    2.4493000e+04   8.928571e+00   0.000000e+00     25s
   18690    2.4493000e+04   0.000000e+00   0.000000e+00     25s

Root relaxation: objective 2.449300e+04, 18690 iterations, 25.40 seconds

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

*    0     0               0    24493.000000 24493.0000   0.0%     -   30s

Explored 0 nodes (19326 simplex iterations) in 30.97 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.449300000000e+04, best bound 2.449300000000e+04, gap 0.0%