Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:22:18 2012

Optimize a model with 123 rows, 312 columns and 312 nonzeros
Model has 244 quadratic constraints
Presolve time: 1.42s
Presolved: 123 rows, 312 columns, 312 nonzeros
Variable types: 244 continuous, 68 integer (68 binary)

Root relaxation: objective 0.000000e+00, 34 iterations, 0.00 seconds

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

H    0     0                      66.0000000          -     -      -    1s
     0     0    0.00000    0   36   66.00000    0.00000   100%     -    1s
     0     0    0.04823    0   65   66.00000    0.04823   100%     -    1s
     0     2    0.15746    0   65   66.00000    0.15746   100%     -    1s
H   27    27                      23.0000000    2.53846  89.0%  35.8    1s
*   34    27              24      22.0000000    2.53846  88.5%  29.9    1s
*   58    39              15      21.0000000    2.80000  86.7%  37.0    1s
*  126    76              14      20.0000000    7.52941  62.4%  34.2    1s
*  151    75               9      19.0000000    7.56250  60.2%  32.8    1s
*  731    37              11      18.0000000   15.25000  15.3%  22.7    1s

Cutting planes:
  Gomory: 2

Explored 800 nodes (18572 simplex iterations) in 1.95 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%