Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:10 2012

Optimize a model with 64 rows, 160 columns and 160 nonzeros
Model has 126 quadratic constraints
Presolve time: 0.73s
Presolved: 64 rows, 160 columns, 160 nonzeros
Variable types: 126 continuous, 34 integer (34 binary)

Root relaxation: objective 0.000000e+00, 17 iterations, 0.00 seconds

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

H    0     0                      28.0000000          -     -      -    0s
     0     0    0.00000    0   16   28.00000    0.00000   100%     -    0s
     0     0    0.00000    0   34   28.00000    0.00000   100%     -    0s
     0     0    0.00000    0   34   28.00000    0.00000   100%     -    0s
     0     2    0.00000    0   34   28.00000    0.00000   100%     -    0s
H   16    16                      20.0000000    2.12500  89.4%  33.1    0s
*   23    20              13      12.0000000    2.12500  82.3%  26.3    0s

Cutting planes:

Explored 153 nodes (2980 simplex iterations) in 0.81 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%