Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:13:16 2012

Optimize a model with 90 rows, 236 columns and 236 nonzeros
Model has 178 quadratic constraints
Presolve removed 0 rows and 2 columns
Presolve time: 1.04s
Presolved: 90 rows, 234 columns, 234 nonzeros
Variable types: 178 continuous, 56 integer (55 binary)

Root relaxation: objective 0.000000e+00, 29 iterations, 0.00 seconds

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

H    0     0                      48.0000000          -     -      -    1s
     0     0    0.00000    0   49   48.00000    0.00000   100%     -    1s
     0     0    0.00000    0   49   48.00000    0.00000   100%     -    1s
     0     0    0.00000    0   34   48.00000    0.00000   100%     -    1s
     0     2    0.00000    0   34   48.00000    0.00000   100%     -    1s
*   28    28              17      17.0000000    3.66667  78.4%  29.1    1s
*   42    24               9      13.0000000    3.88679  70.1%  25.5    1s
*   73    31               9      12.0000000    4.04444  66.3%  22.5    1s

Cutting planes:
  Gomory: 27

Explored 226 nodes (5480 simplex iterations) in 1.19 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%