Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:44:08 2012

Optimize a model with 156 rows, 486 columns and 486 nonzeros
Model has 310 quadratic constraints
Presolve removed 0 rows and 33 columns
Presolve time: 1.80s
Presolved: 156 rows, 453 columns, 453 nonzeros
Variable types: 310 continuous, 143 integer (142 binary)

Root relaxation: objective 0.000000e+00, 57 iterations, 0.00 seconds

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

H    0     0                      81.0000000          -     -      -    1s
     0     0    0.00000    0   46   81.00000    0.00000   100%     -    1s
     0     0    0.00000    0   79   81.00000    0.00000   100%     -    1s
     0     0    0.00000    0   79   81.00000    0.00000   100%     -    1s
     0     2    0.00000    0   79   81.00000    0.00000   100%     -    1s
*   23    21              16       8.0000000    0.66667  91.7%  52.8    1s
*   25    21              17       7.0000000    0.66667  90.5%  54.4    1s
H   40    15                       4.0000000    1.00189  75.0%  37.6    1s

Cutting planes:
  Gomory: 3

Explored 197 nodes (4518 simplex iterations) in 1.98 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.999999998867e+00, best bound 3.999999998867e+00, gap 0.0%