Gurobi 5.0.1 (linux64) logging started Sat Nov 17 00:42:11 2012

Optimize a model with 46606 rows, 43890 columns and 182664 nonzeros
Presolve removed 863 rows and 5227 columns
Presolve time: 1.18s
Presolved: 45743 rows, 38663 columns, 174911 nonzeros
Variable types: 0 continuous, 38663 integer (38663 binary)
Found heuristic solution: objective 209.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   28048    3.0000733e+00   4.966949e+01   0.000000e+00      5s
   32962    3.0000785e+00   1.828889e+02   0.000000e+00     10s
   37750    3.0000845e+00   4.994104e+00   0.000000e+00     15s
   38034    3.0000000e+00   0.000000e+00   0.000000e+00     15s

Root relaxation: objective 3.000000e+00, 38034 iterations, 15.20 seconds
Total elapsed time = 41.87s
Total elapsed time = 52.17s

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

*    0     0               0       3.0000000    3.00000   0.0%     -   54s

Explored 0 nodes (121020 simplex iterations) in 54.85 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%