Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:36:34 2012

Optimize a model with 27474 rows, 30800 columns and 112348 nonzeros
Presolve removed 38 rows and 6302 columns
Presolve time: 0.57s
Presolved: 27436 rows, 24498 columns, 105734 nonzeros
Variable types: 0 continuous, 24498 integer (24498 binary)
Found heuristic solution: objective 175.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: objective 2.000000e+00, 309 iterations, 0.01 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    2.00000    0  250    3.00000    2.00000  33.3%     -    0s

Explored 0 nodes (560 simplex iterations) in 0.72 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%