Gurobi 5.0.1 (linux64) logging started Sat Nov 17 01:09:58 2012

Optimize a model with 54648 rows, 44732 columns and 207622 nonzeros
Presolve removed 424 rows and 2 columns
Presolve time: 3.87s
Presolved: 54435 rows, 44730 columns, 250574 nonzeros
Variable types: 0 continuous, 44730 integer (44730 binary)
Found heuristic solution: objective 211.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   32474    3.0000961e+00   9.899763e+02   0.000000e+00      5s
   36554    3.0000999e+00   1.580851e+02   0.000000e+00     10s
   40362    3.0001033e+00   1.029297e+01   0.000000e+00     15s
   44306    3.0001091e+00   4.559055e+00   0.000000e+00     20s
   47752    3.0000000e+00   0.000000e+00   0.000000e+00     25s

Root relaxation: objective 3.000000e+00, 47752 iterations, 24.57 seconds
Total elapsed time = 47.03s

    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%     -   50s

Explored 0 nodes (92337 simplex iterations) in 50.57 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%