Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:13:05 2012

Optimize a model with 96 rows, 247 columns and 247 nonzeros
Model has 190 quadratic constraints
Presolve time: 1.11s
Presolved: 96 rows, 247 columns, 247 nonzeros
Variable types: 190 continuous, 57 integer (57 binary)

Root relaxation: objective 0.000000e+00, 28 iterations, 0.00 seconds

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

H    0     0                      55.0000000          -     -      -    1s
     0     0    0.00000    0    3   55.00000    0.00000   100%     -    1s
     0     0    0.00000    0   46   55.00000    0.00000   100%     -    1s
     0     0    0.00000    0   35   55.00000    0.00000   100%     -    1s
     0     2    0.00000    0   35   55.00000    0.00000   100%     -    1s
*   23    23              14      16.0000000    1.79592  88.8%  23.9    1s
*   31    25              19      15.0000000    1.79592  88.0%  20.6    1s
H  121    63                      14.0000000    3.75000  73.2%  21.0    1s
*  242    71              12      13.0000000    5.62069  56.8%  20.8    1s

Cutting planes:

Explored 553 nodes (11524 simplex iterations) in 1.39 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.300000000000e+01, best bound 1.300000000000e+01, gap 0.0%