Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:20 2012

Optimize a model with 30 rows, 88 columns and 88 nonzeros
Model has 58 quadratic constraints
Presolve removed 0 rows and 5 columns
Presolve time: 0.36s
Presolved: 30 rows, 83 columns, 83 nonzeros
Variable types: 58 continuous, 25 integer (24 binary)

Root relaxation: objective 0.000000e+00, 15 iterations, 0.00 seconds

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

H    0     0                      14.0000000          -     -      -    0s
     0     0    0.00000    0   15   14.00000    0.00000   100%     -    0s
     0     0    0.00000    0   20   14.00000    0.00000   100%     -    0s
     0     0    0.00000    0   19   14.00000    0.00000   100%     -    0s
H    0     0                      12.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   15   12.00000    0.00000   100%     -    0s
*   13    13               8       5.0000000    1.20000  76.0%  12.3    0s
*   27    12               8       4.0000000    1.35294  66.2%   8.3    0s

Cutting planes:
  Gomory: 11

Explored 72 nodes (708 simplex iterations) in 0.38 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%