Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:22:00 2012

Optimize a model with 122 rows, 310 columns and 310 nonzeros
Model has 242 quadratic constraints
Presolve removed 0 rows and 1 columns
Presolve time: 1.41s
Presolved: 122 rows, 309 columns, 309 nonzeros
Variable types: 242 continuous, 67 integer (66 binary)

Root relaxation: objective 0.000000e+00, 34 iterations, 0.00 seconds

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

H    0     0                      56.0000000          -     -      -    1s
     0     0    0.00000    0   44   56.00000    0.00000   100%     -    1s
     0     0    0.13793    0   64   56.00000    0.13793   100%     -    1s
     0     2    0.16501    0   64   56.00000    0.16501   100%     -    1s
H   32    32                      43.0000000    2.91176  93.2%  27.6    1s
H   51    51                      25.0000000    2.91176  88.4%  22.5    1s
H   83    70                      22.0000000    3.38377  84.6%  22.6    1s
*  785   298              41      21.0000000   12.00000  42.9%  29.5    2s

Explored 2576 nodes (52234 simplex iterations) in 3.76 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.100000000000e+01, best bound 2.100000000000e+01, gap 0.0%