Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:29:29 2012

Optimize a model with 157 rows, 387 columns and 387 nonzeros
Model has 312 quadratic constraints
Presolve time: 1.84s
Presolved: 157 rows, 387 columns, 387 nonzeros
Variable types: 312 continuous, 75 integer (75 binary)

Root relaxation: objective 0.000000e+00, 37 iterations, 0.00 seconds

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

H    0     0                      89.0000000          -     -      -    1s
     0     0    0.00000    0   40   89.00000    0.00000   100%     -    1s
     0     0    0.00000    0    5   89.00000    0.00000   100%     -    1s
     0     0    0.04161    0   71   89.00000    0.04161   100%     -    1s
     0     2    0.13636    0   71   89.00000    0.13636   100%     -    1s
*   50    48              28      37.0000000    4.23810  88.5%  43.3    1s
H   98    81                      35.0000000    4.40476  87.4%  35.4    2s
*  179   139              24      33.0000000    5.27778  84.0%  33.5    2s
*  183   125              26      32.0000000    5.27778  83.5%  32.9    2s
*  220   141              16      30.0000000    6.05556  79.8%  34.5    2s
*  585   252              24      29.0000000   12.50000  56.9%  30.2    2s
* 1096   392              44      28.0000000   13.57500  51.5%  34.8    3s
  2057   483   22.78261   39  237   28.00000   16.08163  42.6%  26.8    5s
  5148   717   26.12903   42  232   28.00000   21.33333  23.8%  21.1   10s

Explored 7297 nodes (148183 simplex iterations) in 13.49 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%