Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:17:40 2012

Optimize a model with 21671 rows, 28392 columns and 92566 nonzeros
Presolve removed 371 rows and 5546 columns
Presolve time: 0.52s
Presolved: 21300 rows, 22846 columns, 85928 nonzeros
Variable types: 0 continuous, 22846 integer (22846 binary)
Found heuristic solution: objective 168.0000000

Root relaxation: objective 3.000000e+00, 17638 iterations, 1.71 seconds
Total elapsed time = 11.37s

    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%     -   12s

Explored 0 nodes (42901 simplex iterations) in 12.42 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%