Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:21:27 2012

Optimize a model with 120 rows, 305 columns and 305 nonzeros
Model has 238 quadratic constraints
Presolve removed 0 rows and 1 columns
Presolve time: 1.42s
Presolved: 120 rows, 304 columns, 304 nonzeros
Variable types: 238 continuous, 66 integer (65 binary)

Root relaxation: objective 0.000000e+00, 32 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   50   56.00000    0.00000   100%     -    1s
     0     0    0.32505    0   63   56.00000    0.32505  99.4%     -    1s
     0     2    0.34783    0   63   56.00000    0.34783  99.4%     -    1s
*   38    38              26      27.0000000    4.00000  85.2%  30.6    1s
*   47    39              32      26.0000000    4.00000  84.6%  26.1    1s
H   75    51                      23.0000000    4.06349  82.3%  24.3    1s
*  761   275              37      22.0000000   12.90000  41.4%  25.5    2s
*  853   278              38      21.0000000   12.90000  38.6%  25.3    2s

Explored 1780 nodes (37495 simplex iterations) in 3.06 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%