Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:49:41 2012

Optimize a model with 4896 rows, 10506 columns and 24786 nonzeros
Presolve removed 243 rows and 3978 columns
Presolve time: 0.14s
Presolved: 4653 rows, 6528 columns, 20298 nonzeros
Variable types: 0 continuous, 6528 integer (6528 binary)
Found heuristic solution: objective 20.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: cutoff, 5482 iterations, 0.13 seconds

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

     0     0     cutoff    0         3.00000    2.00000  33.3%     -    0s

Explored 0 nodes (5482 simplex iterations) in 0.28 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%