Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:20:47 2012

Optimize a model with 115 rows, 293 columns and 293 nonzeros
Model has 228 quadratic constraints
Presolve time: 1.33s
Presolved: 115 rows, 293 columns, 293 nonzeros
Variable types: 228 continuous, 65 integer (65 binary)

Root relaxation: objective 0.000000e+00, 32 iterations, 0.00 seconds

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

H    0     0                      64.0000000          -     -      -    1s
     0     0    0.00000    0   45   64.00000    0.00000   100%     -    1s
     0     0    0.26190    0   62   64.00000    0.26190   100%     -    1s
     0     0    0.26190    0   62   64.00000    0.26190   100%     -    1s
     0     2    0.26190    0   62   64.00000    0.26190   100%     -    1s
H    8     8                      47.0000000    2.72024  94.2%  41.8    1s
H   41    41                      25.0000000    2.72024  89.1%  22.8    1s
*   42    40              30      24.0000000    2.72024  88.7%  22.4    1s
H  104    76                      23.0000000    3.55238  84.6%  19.5    1s
*  108    73              16      22.0000000    3.55238  83.9%  19.1    1s
H  169   114                      21.0000000    3.59524  82.9%  23.4    1s
*  672   250              26      20.0000000    9.48958  52.6%  25.4    2s
*  681   238              31      19.0000000    9.48958  50.1%  25.2    2s
*  866   238              35      18.0000000    9.48958  47.3%  26.7    2s

Explored 1348 nodes (31609 simplex iterations) in 3.13 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%