Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:18:35 2012

Optimize a model with 4800 rows, 3660 columns and 17820 nonzeros
Presolve removed 243 rows and 180 columns
Presolve time: 0.11s
Presolved: 4557 rows, 3480 columns, 17040 nonzeros
Variable types: 0 continuous, 3480 integer (3480 binary)
Found heuristic solution: objective 30.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: cutoff, 4529 iterations, 0.15 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 (4529 simplex iterations) in 0.27 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%