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

Optimize a model with 119 rows, 296 columns and 296 nonzeros
Model has 236 quadratic constraints
Presolve time: 1.38s
Presolved: 119 rows, 296 columns, 296 nonzeros
Variable types: 236 continuous, 60 integer (60 binary)

Root relaxation: objective 0.000000e+00, 30 iterations, 0.00 seconds

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

H    0     0                      60.0000000          -     -      -    1s
     0     0    0.00000    0   49   60.00000    0.00000   100%     -    1s
     0     0    0.37500    0   56   60.00000    0.37500  99.4%     -    1s
     0     2    0.40741    0   56   60.00000    0.40741  99.3%     -    1s
*   39    39              24      35.0000000    5.80645  83.4%  24.9    1s
H   69    54                      32.0000000    5.89286  81.6%  22.9    1s
*  108    72              21      29.0000000    6.34294  78.1%  21.7    1s
*  151   101              24      28.0000000    6.34615  77.3%  21.8    1s
*  229   139              20      27.0000000    6.37500  76.4%  23.0    1s
*  361   169              15      26.0000000   10.99274  57.7%  22.5    1s
*  517   203              14      25.0000000   12.34705  50.6%  21.8    1s
*  862   294              40      24.0000000   13.87500  42.2%  31.8    2s
*  942   295              40      23.0000000   13.87500  39.7%  31.2    2s

Explored 2343 nodes (53512 simplex iterations) in 3.52 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.300000000000e+01, best bound 2.300000000000e+01, gap 0.0%