Gurobi 5.0.1 (linux64) logging started Sat Nov 17 00:23:01 2012

Optimize a model with 50714 rows, 43056 columns and 194164 nonzeros
Presolve removed 1263 rows and 3935 columns
Presolve time: 1.26s
Presolved: 49451 rows, 39121 columns, 186648 nonzeros
Variable types: 0 continuous, 39121 integer (39121 binary)
Found heuristic solution: objective 207.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   34329    3.0000818e+00   1.286550e+02   0.000000e+00      5s
   38879    3.0000898e+00   7.960831e+01   0.000000e+00     10s
   42909    3.0000926e+00   4.611407e+01   0.000000e+00     15s
   46809    3.0000949e+00   5.341070e+02   0.000000e+00     20s
   48315    3.0000000e+00   0.000000e+00   0.000000e+00     22s

Root relaxation: objective 3.000000e+00, 48315 iterations, 21.94 seconds
Total elapsed time = 40.65s

    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 (101349 simplex iterations) in 42.41 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%