Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:31:02 2012

Optimize a model with 160 rows, 394 columns and 394 nonzeros
Model has 318 quadratic constraints
Presolve time: 1.85s
Presolved: 160 rows, 394 columns, 394 nonzeros
Variable types: 318 continuous, 76 integer (76 binary)

Root relaxation: objective 0.000000e+00, 38 iterations, 0.00 seconds

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

H    0     0                      87.0000000          -     -      -    1s
     0     0    0.00000    0   67   87.00000    0.00000   100%     -    1s
     0     0    0.41760    0   73   87.00000    0.41760   100%     -    1s
     0     2    0.50909    0   73   87.00000    0.50909  99.4%     -    1s
H   45    45                      35.0000000    5.38065  84.6%  32.6    1s
*   46    46              27      34.0000000    5.38065  84.2%  33.4    1s
*  159   123              27      33.0000000    5.84615  82.3%  32.0    2s
H  487   250                      32.0000000   12.10345  62.2%  32.5    2s
*  595   245              14      30.0000000   13.37313  55.4%  32.0    2s
* 1409   413              44      29.0000000   14.36364  50.5%  33.6    4s
  2200   573     cutoff   40        29.00000   15.72727  45.8%  28.4    5s
  4651   978   26.65517   36  216   29.00000   19.66667  32.2%  23.0   10s
* 5795   957              44      28.0000000   20.91176  25.3%  21.7   11s
  8420   572   25.81818   39  234   28.00000   23.80000  15.0%  20.3   15s

Explored 9551 nodes (189608 simplex iterations) in 16.44 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.800000000000e+01, best bound 2.800000000000e+01, gap 0.0%