Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:11:36 2012

Optimize a model with 12628 rows, 6806 columns and 44362 nonzeros
Presolve removed 1313 rows and 82 columns
Presolve time: 0.26s
Presolved: 11315 rows, 6724 columns, 41082 nonzeros
Variable types: 0 continuous, 6724 integer (6724 binary)
Found heuristic solution: objective 48.0000000

Root relaxation: objective 3.000000e+00, 11673 iterations, 1.23 seconds

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

*    0     0               0       3.0000000    3.00000   0.0%     -    2s

Explored 0 nodes (21248 simplex iterations) in 2.78 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%