Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:36:15 2012

Optimize a model with 5291 rows, 812 columns and 16546 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.07s
Presolved: 5317 rows, 810 columns, 22423 nonzeros
Variable types: 0 continuous, 810 integer (810 binary)
Found heuristic solution: objective 28.0000000

Root relaxation: objective 3.843972e+00, 5151 iterations, 0.37 seconds

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

     0     0    3.84397    0  549   28.00000    3.84397  86.3%     -    1s
     0     0    7.00000    0   44   28.00000    7.00000  75.0%     -    1s
H    0     0                      19.0000000    7.00000  63.2%     -    1s
H    0     0                       8.0000000    7.00000  12.5%     -    1s
     0     0    7.00000    0   40    8.00000    7.00000  12.5%     -    1s
*    0     0               0       7.0000000    7.00000   0.0%     -    1s

Explored 0 nodes (11063 simplex iterations) in 1.68 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%