Gurobi 5.0.1 (linux64) logging started Mon Feb  4 17:54:15 2013

Optimize a model with 1471 rows, 47467 columns and 1848003 nonzeros
Presolve removed 29 rows and 171 columns (presolve time = 5s) ...
Presolve removed 29 rows and 171 columns
Presolve time: 5.29s
Presolved: 1442 rows, 47296 columns, 1841685 nonzeros
Variable types: 0 continuous, 47296 integer (47296 binary)
Found heuristic solution: objective 24724.000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    9597    1.5169071e+04   1.046370e+03   0.000000e+00      5s
   13701    1.5233015e+04   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 1.523300e+04, 13701 iterations, 10.09 seconds

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

*    0     0               0    15233.000000 15233.0000   0.0%     -   15s

Explored 0 nodes (13701 simplex iterations) in 15.73 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.523300000000e+04, best bound 1.523300000000e+04, gap 0.0%