Gurobi 5.0.1 (linux64) logging started Sat Nov 17 02:00:51 2012

Optimize a model with 55551 rows, 47306 columns and 212875 nonzeros
Presolve removed 1102 rows and 3257 columns
Presolve time: 1.42s
Presolved: 54449 rows, 44049 columns, 206514 nonzeros
Variable types: 0 continuous, 44049 integer (44049 binary)
Found heuristic solution: objective 217.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   25846    3.0000861e+00   4.008333e+01   0.000000e+00      5s
   30062    3.0000905e+00   8.226712e+00   0.000000e+00     10s
   34550    3.0000968e+00   6.482400e+00   0.000000e+00     15s
   38494    3.0001015e+00   2.181834e+00   0.000000e+00     20s
   39062    3.0000000e+00   0.000000e+00   0.000000e+00     21s

Root relaxation: objective 3.000000e+00, 39062 iterations, 20.91 seconds
Total elapsed time = 40.95s
Total elapsed time = 45.80s

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

     0     0    3.00000    0   56  217.00000    3.00000  98.6%     -   49s
H    0     0                       3.0000000    3.00000   0.0%     -   49s

Explored 0 nodes (136087 simplex iterations) in 49.52 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%