Gurobi 5.0.1 (linux64) logging started Sat Nov 17 00:32:41 2012

Optimize a model with 50959 rows, 43472 columns and 195310 nonzeros
Presolve removed 439 rows and 4370 columns
Presolve time: 1.27s
Presolved: 50520 rows, 39102 columns, 189416 nonzeros
Variable types: 0 continuous, 39102 integer (39102 binary)
Found heuristic solution: objective 208.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   30240    3.0000769e+00   2.160688e+01   0.000000e+00      5s
   34956    3.0000844e+00   6.177008e+00   0.000000e+00     10s
   37579    3.0000000e+00   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 3.000000e+00, 37579 iterations, 12.40 seconds
Total elapsed time = 36.88s
Total elapsed time = 40.74s

    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%     -   42s

Explored 0 nodes (112919 simplex iterations) in 42.75 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%