Gurobi 5.0.1 (linux64) logging started Sat Nov 17 01:00:31 2012

Optimize a model with 53593 rows, 44732 columns and 204457 nonzeros
Presolve removed 446 rows and 4644 columns
Presolve time: 1.26s
Presolved: 53147 rows, 40088 columns, 198256 nonzeros
Variable types: 0 continuous, 40088 integer (40088 binary)
Found heuristic solution: objective 211.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   29561    3.0000832e+00   3.403846e+01   0.000000e+00      5s
   34385    3.0000868e+00   9.802166e+00   0.000000e+00     10s
   38137    3.0000905e+00   7.538636e+00   0.000000e+00     15s
   42462    3.0000000e+00   0.000000e+00   0.000000e+00     20s

Root relaxation: objective 3.000000e+00, 42462 iterations, 19.59 seconds
Total elapsed time = 58.19s
Total elapsed time = 66.61s
Total elapsed time = 70.76s

    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%     -   72s

Explored 0 nodes (142362 simplex iterations) in 73.00 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%