Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:22:00 2012

Optimize a model with 267 rows, 746 columns and 746 nonzeros
Model has 532 quadratic constraints
Presolve removed 0 rows and 13 columns
Presolve time: 3.10s
Presolved: 267 rows, 733 columns, 733 nonzeros
Variable types: 532 continuous, 201 integer (200 binary)

Root relaxation: objective 0.000000e+00, 83 iterations, 0.00 seconds

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

H    0     0                     135.0000000          -     -      -    3s
     0     0    0.00000    0    2  135.00000    0.00000   100%     -    3s
     0     0    0.00000    0  131  135.00000    0.00000   100%     -    3s
     0     0    0.00000    0  113  135.00000    0.00000   100%     -    3s
     0     2    0.00000    0  111  135.00000    0.00000   100%     -    3s
H   54    54                      60.0000000    2.73016  95.4%  29.7    3s
*   65    65              44      29.0000000    2.73016  90.6%  28.9    3s
*  215   157              26      27.0000000    3.87582  85.6%  22.2    3s
H  257   145                      23.0000000    4.50000  80.4%  24.7    3s
*  257   136              19      22.0000000    4.50000  79.5%  24.7    3s
H  470   232                      21.0000000    6.31746  69.9%  24.3    3s
*  477   186              14      19.0000000    6.31746  66.8%  24.5    3s
   607   223    8.19737   12  723   19.00000    8.19737  56.9%  29.9    5s
* 1065   250              37      18.0000000   10.11364  43.8%  41.5    6s

Explored 1960 nodes (74466 simplex iterations) in 8.94 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.800000000000e+01, best bound 1.800000000000e+01, gap 0.0%