Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:14 2012

Optimize a model with 49 rows, 137 columns and 137 nonzeros
Model has 96 quadratic constraints
Presolve removed 0 rows and 1 columns
Presolve time: 0.57s
Presolved: 49 rows, 136 columns, 136 nonzeros
Variable types: 96 continuous, 40 integer (39 binary)

Root relaxation: objective 0.000000e+00, 20 iterations, 0.00 seconds

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

H    0     0                      21.0000000          -     -      -    0s
     0     0    0.00000    0    5   21.00000    0.00000   100%     -    0s
     0     0    0.00000    0   36   21.00000    0.00000   100%     -    0s
     0     0    0.00000    0   30   21.00000    0.00000   100%     -    0s
     0     2    0.00000    0   30   21.00000    0.00000   100%     -    0s
*   12    12               9       6.0000000    2.00000  66.7%  23.1    0s
*   21     8              13       5.0000000    2.00000  60.0%  15.9    0s
*   90     8               8       4.0000000    3.16667  20.8%   9.1    0s

Cutting planes:

Explored 98 nodes (1255 simplex iterations) in 0.60 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%