Gurobi 5.0.1 (linux64) logging started Sun Nov 18 04:06:46 2012

Optimize a model with 167 rows, 416 columns and 416 nonzeros
Model has 332 quadratic constraints
Presolve removed 0 rows and 3 columns
Presolve time: 1.94s
Presolved: 167 rows, 413 columns, 413 nonzeros
Variable types: 332 continuous, 81 integer (80 binary)

Root relaxation: objective 0.000000e+00, 42 iterations, 0.00 seconds

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

H    0     0                      88.0000000          -     -      -    1s
     0     0    0.00000    0   65   88.00000    0.00000   100%     -    1s
     0     0    0.36428    0   78   88.00000    0.36428   100%     -    1s
     0     2    0.38142    0   78   88.00000    0.38142   100%     -    2s
H   49    49                      30.0000000    3.85507  87.1%  26.5    2s
  1105   546   26.93421   47  242   30.00000   12.00000  60.0%  33.6    5s
H 3268   980                      29.0000000   18.53796  36.1%  24.2    7s
  5408  1202     cutoff   41        29.00000   20.73702  28.5%  22.5   10s
  6660  1210   26.36104   38  248   29.00000   21.79735  24.8%  21.8   15s
  9797   954   27.61994   39  245   29.00000   23.70968  18.2%  20.3   20s

Explored 12234 nodes (240466 simplex iterations) in 23.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.900000000000e+01, best bound 2.900000000000e+01, gap 0.0%