Gurobi 5.0.1 (linux64) logging started Sat Nov 17 02:26:22 2012

Optimize a model with 54092 rows, 48180 columns and 209362 nonzeros
Presolve removed 463 rows and 5039 columns
Presolve time: 1.33s
Presolved: 53629 rows, 43141 columns, 202740 nonzeros
Variable types: 0 continuous, 43141 integer (43141 binary)
Found heuristic solution: objective 219.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   32377    3.0001290e+00   8.100000e+01   0.000000e+00      5s
   37387    3.0001470e+00   4.800000e+01   0.000000e+00     10s
   42382    3.0001544e+00   4.388889e+01   0.000000e+00     15s
   43048    3.0000000e+00   0.000000e+00   0.000000e+00     16s

Root relaxation: objective 3.000000e+00, 43048 iterations, 15.88 seconds
Total elapsed time = 45.74s

    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%     -   54s

Explored 0 nodes (103670 simplex iterations) in 54.41 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%