Gurobi 5.0.1 (linux64) logging started Sat Nov 17 01:05:27 2012

Optimize a model with 48740 rows, 44732 columns and 189898 nonzeros
Presolve removed 1294 rows and 5488 columns
Presolve time: 1.17s
Presolved: 47446 rows, 39244 columns, 180797 nonzeros
Variable types: 0 continuous, 39244 integer (39244 binary)
Found heuristic solution: objective 211.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   29961    3.0000899e+00   6.275000e+01   0.000000e+00      5s
   34441    3.0000951e+00   2.138248e+01   0.000000e+00     10s
   36873    3.0000000e+00   0.000000e+00   0.000000e+00     13s

Root relaxation: objective 3.000000e+00, 36873 iterations, 13.16 seconds
Total elapsed time = 32.54s
Total elapsed time = 35.25s

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

     0     0    3.00000    0   76  211.00000    3.00000  98.6%     -   36s
H    0     0                       3.0000000    3.00000   0.0%     -   36s

Explored 0 nodes (114216 simplex iterations) in 36.53 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%