Gurobi 5.0.1 (linux64) logging started Sat Nov 17 04:19:41 2012

Optimize a model with 64799 rows, 50850 columns and 244123 nonzeros
Presolve removed 1352 rows and 2 columns
Presolve time: 4.72s
Presolved: 63672 rows, 50848 columns, 290809 nonzeros
Variable types: 0 continuous, 50848 integer (50848 binary)
Found heuristic solution: objective 225.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   32819    3.0000892e+00   3.343750e+01   0.000000e+00      5s
   36469    3.0000969e+00   2.637668e+01   0.000000e+00     10s
   39535    3.0000979e+00   4.317312e+01   0.000000e+00     15s
   42893    3.0000986e+00   1.835556e+01   0.000000e+00     20s
   44844    3.0000000e+00   0.000000e+00   0.000000e+00     23s

Root relaxation: objective 3.000000e+00, 44844 iterations, 22.71 seconds
Total elapsed time = 57.09s
Total elapsed time = 62.42s

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

     0     0    3.00000    0   72  225.00000    3.00000  98.7%     -   63s
H    0     0                       3.0000000    3.00000   0.0%     -   64s

Explored 0 nodes (127855 simplex iterations) in 64.08 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%