Gurobi 5.0.1 (linux64) logging started Sat Nov 17 03:44:52 2012

Optimize a model with 58648 rows, 49952 columns and 224782 nonzeros
Presolve removed 448 rows and 2 columns
Presolve time: 1.57s
Presolved: 58423 rows, 49950 columns, 272874 nonzeros
Variable types: 0 continuous, 49950 integer (49950 binary)
Found heuristic solution: objective 223.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   34410    3.0001189e+00   1.272906e+02   0.000000e+00      5s
   42997    3.0001557e+00   1.488653e+02   0.000000e+00     10s
   47477    3.0001586e+00   7.095299e+00   0.000000e+00     15s
   51957    3.0001620e+00   3.374900e+00   0.000000e+00     20s
   55737    3.0001636e+00   1.400105e+00   0.000000e+00     25s
   56379    3.0000000e+00   0.000000e+00   0.000000e+00     26s

Root relaxation: objective 3.000000e+00, 56379 iterations, 25.89 seconds

    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 (100343 simplex iterations) in 54.55 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%