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

Optimize a model with 724 rows, 650 columns and 2698 nonzeros
Presolve removed 77 rows and 2 columns
Presolve time: 0.02s
Presolved: 672 rows, 648 columns, 3096 nonzeros
Variable types: 0 continuous, 648 integer (648 binary)
Found heuristic solution: objective 25.0000000

Root relaxation: objective 3.000000e+00, 391 iterations, 0.00 seconds

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

     0     0    3.00000    0   45   25.00000    3.00000  88.0%     -    0s
H    0     0                      18.0000000    3.00000  83.3%     -    0s
H    0     0                       3.0000000    3.00000   0.0%     -    0s

Explored 0 nodes (1168 simplex iterations) in 0.05 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%