Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:08:02 2012

Optimize a model with 667 rows, 552 columns and 2461 nonzeros
Presolve removed 140 rows and 46 columns
Presolve time: 0.01s
Presolved: 527 rows, 506 columns, 2093 nonzeros
Variable types: 0 continuous, 506 integer (506 binary)
Found heuristic solution: objective 8.0000000

Root relaxation: objective 3.000000e+00, 588 iterations, 0.01 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%     -    0s

Explored 0 nodes (588 simplex iterations) in 0.02 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%