Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:38:56 2012

Optimize a model with 2304 rows, 5256 columns and 11880 nonzeros
Presolve removed 173 rows and 2088 columns
Presolve time: 0.07s
Presolved: 2131 rows, 3168 columns, 9432 nonzeros
Variable types: 0 continuous, 3168 integer (3168 binary)
Found heuristic solution: objective 15.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: cutoff, 2646 iterations, 0.04 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 (2646 simplex iterations) in 0.11 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%