Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:42 2012

Optimize a model with 51 rows, 145 columns and 145 nonzeros
Model has 100 quadratic constraints
Presolve removed 0 rows and 1 columns
Presolve time: 0.58s
Presolved: 51 rows, 144 columns, 144 nonzeros
Variable types: 100 continuous, 44 integer (43 binary)

Root relaxation: objective 0.000000e+00, 21 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   24   28.00000    0.00000   100%     -    0s
     0     0    0.00000    0   27   28.00000    0.00000   100%     -    0s
     0     0    0.00000    0   18   28.00000    0.00000   100%     -    0s
     0     2    0.00000    0   16   28.00000    0.00000   100%     -    0s
*   13    12               8       5.0000000    2.66667  46.7%  28.8    0s
*   26     8               9       4.0000000    2.69231  32.7%  17.4    0s

Cutting planes:

Explored 62 nodes (1038 simplex iterations) in 0.61 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%