Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:53:29 2012

Optimize a model with 84 rows, 185 columns and 185 nonzeros
Model has 166 quadratic constraints
Presolve time: 0.97s
Presolved: 84 rows, 185 columns, 185 nonzeros
Variable types: 166 continuous, 19 integer (19 binary)

Root relaxation: objective 0.000000e+00, 9 iterations, 0.00 seconds

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

H    0     0                      45.0000000          -     -      -    0s
     0     0    0.00000    0   16   45.00000    0.00000   100%     -    0s
     0     0    0.39103    0   19   45.00000    0.39103  99.1%     -    0s
     0     2    0.39594    0   19   45.00000    0.39594  99.1%     -    0s
*   23    23              14      39.0000000    5.57143  85.7%  23.1    0s
*   26    22              14      38.0000000    5.57143  85.3%  21.3    0s
*   28    18              12      36.0000000    5.57143  84.5%  20.4    0s
*   92    53              11      33.0000000    9.12500  72.3%  20.3    1s
*  121    66              12      32.0000000   10.20000  68.1%  20.9    1s
*  622    34               8      31.0000000   28.00000  9.68%  18.9    1s

Cutting planes:
  Gomory: 1

Explored 675 nodes (12244 simplex iterations) in 1.23 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.100000000000e+01, best bound 3.100000000000e+01, gap 0.0%