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

Optimize a model with 666 rows, 552 columns and 2436 nonzeros
Presolve removed 95 rows and 25 columns
Presolve time: 0.02s
Presolved: 571 rows, 527 columns, 2133 nonzeros
Variable types: 0 continuous, 527 integer (527 binary)
Found heuristic solution: objective 23.0000000

Root relaxation: objective 3.000000e+00, 484 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 (767 simplex iterations) in 0.03 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%