Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:36:43 2012

Optimize a model with 137 rows, 350 columns and 350 nonzeros
Model has 272 quadratic constraints
Presolve time: 1.58s
Presolved: 137 rows, 350 columns, 350 nonzeros
Variable types: 272 continuous, 78 integer (78 binary)

Root relaxation: objective 0.000000e+00, 39 iterations, 0.00 seconds

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

H    0     0                      59.0000000          -     -      -    1s
     0     0    0.00000    0   62   59.00000    0.00000   100%     -    1s
     0     0    0.31885    0   73   59.00000    0.31885  99.5%     -    1s
     0     2    0.32355    0   73   59.00000    0.32355  99.5%     -    1s
H   40    40                      28.0000000    4.48000  84.0%  28.0    1s
*  124    92              18      25.0000000    4.64706  81.4%  23.7    1s
*  159   101              18      23.0000000    4.75325  79.3%  25.6    1s
H  311   147                      22.0000000    7.55385  65.7%  25.3    1s
*  314   136              17      21.0000000    7.55385  64.0%  25.3    1s
*  883   254              44      20.0000000   10.54382  47.3%  30.2    2s

Explored 2199 nodes (49984 simplex iterations) in 3.99 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.000000000000e+01, best bound 2.000000000000e+01, gap 0.0%