Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:58:36 2013

Optimize a model with 1543 rows, 41271 columns and 2035707 nonzeros
Presolve removed 41 rows and 257 columns
Presolve time: 4.76s
Presolved: 1502 rows, 41014 columns, 2024392 nonzeros
Variable types: 0 continuous, 41014 integer (41014 binary)
Found heuristic solution: objective 23454.000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    8560    1.4511559e+04   3.890662e+02   0.000000e+00      5s
   11813    1.4571000e+04   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 1.457100e+04, 11813 iterations, 9.63 seconds
Total elapsed time = 15.22s

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

     0     0 14571.0000    0   81 23454.0000 14571.0000  37.9%     -   15s
H    0     0                    14589.000000 14571.0000  0.12%     -   17s
     0     0 14571.0000    0   50 14589.0000 14571.0000  0.12%     -   19s
H    0     0                    14575.000000 14571.0000  0.03%     -   27s
     0     0 14571.0000    0   50 14575.0000 14571.0000  0.03%     -   29s
     0     0 14572.5000    0   56 14575.0000 14572.5000  0.02%     -   31s
     0     1 14572.5000    0   56 14575.0000 14572.5000  0.02%     -   33s
     2     1 14572.5000    0   50 14573.0000 14572.5000  0.00%   249   36s

Explored 2 nodes (21726 simplex iterations) in 36.43 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.457300000000e+04, best bound 1.457300000000e+04, gap 0.0%