Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:19:12 2012

Optimize a model with 81 rows, 221 columns and 221 nonzeros
Model has 160 quadratic constraints
Presolve removed 0 rows and 1 columns
Presolve time: 0.94s
Presolved: 81 rows, 220 columns, 220 nonzeros
Variable types: 160 continuous, 60 integer (59 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                      45.0000000          -     -      -    0s
     0     0    0.00000    0   35   45.00000    0.00000   100%     -    0s
     0     0    0.09154    0   56   45.00000    0.09154   100%     -    0s
     0     2    0.19651    0   56   45.00000    0.19651   100%     -    0s
H   16    16                      11.0000000    1.41059  87.2%  18.1    0s
*   22    19              17      10.0000000    1.41059  85.9%  16.2    0s
*   49    14               6       8.0000000    4.40000  45.0%  19.2    1s
*   74     5               6       7.0000000    5.80000  17.1%  18.4    1s

Cutting planes:
  Gomory: 3

Explored 83 nodes (2024 simplex iterations) in 1.02 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%