Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:41:56 2012

Optimize a model with 93 rows, 226 columns and 226 nonzeros
Model has 184 quadratic constraints
Presolve time: 1.07s
Presolved: 93 rows, 226 columns, 226 nonzeros
Variable types: 184 continuous, 42 integer (42 binary)

Root relaxation: objective 0.000000e+00, 21 iterations, 0.00 seconds

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

H    0     0                      41.0000000          -     -      -    1s
     0     0    0.00000    0   20   41.00000    0.00000   100%     -    1s
     0     0    0.00000    0    2   41.00000    0.00000   100%     -    1s
     0     0    0.00000    0    2   41.00000    0.00000   100%     -    1s
     0     2    0.00000    0    2   41.00000    0.00000   100%     -    1s
*   30    29              23      25.0000000    3.00000  88.0%  27.0    1s
H   53    40                      24.0000000    3.63636  84.8%  23.5    1s
*  119    70              16      22.0000000    4.92673  77.6%  19.5    1s
H  135    54                      19.0000000    5.50000  71.1%  18.7    1s
H  362    77                      18.0000000   10.45455  41.9%  19.6    1s

Cutting planes:
  Gomory: 3

Explored 720 nodes (13365 simplex iterations) in 1.41 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.800000000018e+01, best bound 1.800000000018e+01, gap 0.0%