Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:59:04 2012

Optimize a model with 253 rows, 728 columns and 728 nonzeros
Model has 504 quadratic constraints
Presolve removed 0 rows and 20 columns
Presolve time: 2.94s
Presolved: 253 rows, 708 columns, 708 nonzeros
Variable types: 504 continuous, 204 integer (203 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                     125.0000000          -     -      -    2s
     0     0    0.00000    0    2  125.00000    0.00000   100%     -    2s
     0     0    0.00000    0    3  125.00000    0.00000   100%     -    2s
     0     0    0.00000    0   19  125.00000    0.00000   100%     -    2s
     0     2    0.00000    0    7  125.00000    0.00000   100%     -    2s
H   39    39                      19.0000000    1.06977  94.4%  61.0    3s
*   39    39              24      18.0000000    1.06977  94.1%  61.4    3s
H  144    67                      15.0000000    2.00000  86.7%  33.6    3s

Cutting planes:

Explored 972 nodes (32803 simplex iterations) in 4.27 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.499999999873e+01, best bound 1.499999999873e+01, gap 0.0%