Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:34:20 2012

Optimize a model with 156 rows, 471 columns and 471 nonzeros
Model has 310 quadratic constraints
Presolve removed 0 rows and 19 columns
Presolve time: 1.80s
Presolved: 156 rows, 452 columns, 452 nonzeros
Variable types: 310 continuous, 142 integer (141 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                      76.0000000          -     -      -    1s
     0     0    0.00000    0   53   76.00000    0.00000   100%     -    1s
     0     0    0.00000    0   70   76.00000    0.00000   100%     -    1s
     0     0    0.00000    0   70   76.00000    0.00000   100%     -    1s
     0     2    0.00000    0   70   76.00000    0.00000   100%     -    1s
H   27    27                      10.0000000    0.45482  95.5%  22.2    1s
H   40    26                       8.0000000    0.71429  91.1%  27.7    1s
*   46    29              11       7.0000000    0.71429  89.8%  28.4    1s
*  126    20               8       6.0000000    1.97947  67.0%  17.4    1s

Cutting planes:
  Gomory: 2

Explored 226 nodes (5348 simplex iterations) in 1.99 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%