Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:40:26 2012

Optimize a model with 3444 rows, 7140 columns and 17136 nonzeros
Presolve removed 197 rows and 2436 columns
Presolve time: 0.11s
Presolved: 3247 rows, 4704 columns, 14280 nonzeros
Variable types: 0 continuous, 4704 integer (4704 binary)
Found heuristic solution: objective 22.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: cutoff, 4488 iterations, 0.09 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 (4488 simplex iterations) in 0.21 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%