Gurobi 5.0.1 (linux64) logging started Sat Nov 17 04:42:54 2012

Optimize a model with 62827 rows, 51302 columns and 238654 nonzeros
Presolve removed 1810 rows and 2 columns
Presolve time: 4.75s
Presolved: 61243 rows, 51300 columns, 284670 nonzeros
Variable types: 0 continuous, 51300 integer (51300 binary)
Found heuristic solution: objective 226.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   32318    3.0000877e+00   2.158065e+01   0.000000e+00      5s
   36465    3.0000911e+00   1.455353e+01   0.000000e+00     10s
   39897    3.0000938e+00   1.810524e+01   0.000000e+00     15s
   43186    3.0000968e+00   2.052734e+02   0.000000e+00     20s
   46904    3.0001027e+00   1.556627e+01   0.000000e+00     25s
   48447    3.0000000e+00   0.000000e+00   0.000000e+00     26s

Root relaxation: objective 3.000000e+00, 48447 iterations, 26.29 seconds
Total elapsed time = 55.62s

    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%     -   59s

Explored 0 nodes (117393 simplex iterations) in 59.52 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%