Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:08:53 2012

Optimize a model with 3127 rows, 552 columns and 9819 nonzeros
Presolve removed 342 rows and 2 columns
Presolve time: 0.07s
Presolved: 2785 rows, 550 columns, 17373 nonzeros
Variable types: 0 continuous, 550 integer (550 binary)
Found heuristic solution: objective 22.0000000

Root relaxation: objective 7.000000e+00, 2788 iterations, 0.20 seconds

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

*    0     0               0       7.0000000    7.00000   0.0%     -    0s

Explored 0 nodes (5507 simplex iterations) in 0.55 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%