Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:55:29 2012

Optimize a model with 266 rows, 753 columns and 753 nonzeros
Model has 530 quadratic constraints
Presolve removed 0 rows and 18 columns
Presolve time: 3.09s
Presolved: 266 rows, 735 columns, 735 nonzeros
Variable types: 530 continuous, 205 integer (204 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                     127.0000000          -     -      -    3s
     0     0    0.00000    0    4  127.00000    0.00000   100%     -    3s
     0     0    0.00000    0    5  127.00000    0.00000   100%     -    3s
     0     0    0.00000    0    4  127.00000    0.00000   100%     -    3s
     0     2    0.00000    0  154  127.00000    0.00000   100%     -    3s
H   53    51                      25.0000000    1.20000  95.2%  37.2    3s
*   97    78              31      24.0000000    2.92090  87.8%  31.0    3s
*  474   210              16      22.0000000    7.91429  64.0%  23.9    3s
   601   254   17.06250   15    4   22.00000    9.82692  55.3%  23.3    5s
  2371   696   18.90909   32  360   22.00000   12.00000  45.5%  29.8   10s
  5207  1458   19.98496   29  400   22.00000   14.94595  32.1%  26.0   15s
  8159  1958     cutoff   33        22.00000   16.31707  25.8%  24.7   20s
*10449  1569              45      21.0000000   17.01613  19.0%  24.2   23s
 11161  1396   19.70122   36  408   21.00000   17.61290  16.1%  24.2   25s
*11302   189              30      19.0000000   17.70330  6.82%  24.2   25s

Explored 11492 nodes (278730 simplex iterations) in 25.43 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.900000000000e+01, best bound 1.900000000000e+01, gap 0.0%