Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:18:25 2012

Optimize a model with 4601 rows, 3540 columns and 17049 nonzeros
Presolve removed 356 rows and 2 columns
Presolve time: 0.11s
Presolved: 4304 rows, 3538 columns, 19501 nonzeros
Variable types: 0 continuous, 3538 integer (3538 binary)
Found heuristic solution: objective 59.0000000

Root relaxation: objective 3.000000e+00, 2873 iterations, 0.13 seconds

    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%     -    0s

Explored 0 nodes (5683 simplex iterations) in 0.48 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%