Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:53:01 2012

Optimize a model with 81 rows, 177 columns and 177 nonzeros
Model has 160 quadratic constraints
Presolve time: 0.93s
Presolved: 81 rows, 177 columns, 177 nonzeros
Variable types: 160 continuous, 17 integer (17 binary)

Root relaxation: objective 0.000000e+00, 8 iterations, 0.00 seconds

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

H    0     0                      41.0000000          -     -      -    0s
     0     0    0.00000    0   16   41.00000    0.00000   100%     -    0s
     0     0    0.46324    0   17   41.00000    0.46324  98.9%     -    0s
     0     2    0.50000    0   17   41.00000    0.50000  98.8%     -    0s
*   23    23              12      36.0000000    4.96591  86.2%  22.7    0s
*   24    22              12      35.0000000    4.96591  85.8%  21.8    0s
*   43    32              12      33.0000000    5.00000  84.8%  19.4    0s
*  329    88              11      32.0000000   19.10344  40.3%  16.4    1s
*  431    90              10      31.0000000   21.60286  30.3%  16.0    1s

Cutting planes:
  Gomory: 1

Explored 716 nodes (10682 simplex iterations) in 1.16 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.100000000000e+01, best bound 3.100000000000e+01, gap 0.0%