Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:16:56 2012

Optimize a model with 4845 rows, 3306 columns and 17613 nonzeros
Presolve removed 402 rows and 171 columns
Presolve time: 0.11s
Presolved: 4443 rows, 3135 columns, 16473 nonzeros
Variable types: 0 continuous, 3135 integer (3135 binary)
Found heuristic solution: objective 31.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: cutoff, 4461 iterations, 0.17 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 (4461 simplex iterations) in 0.30 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%