Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:13:26 2012

Optimize a model with 91 rows, 238 columns and 238 nonzeros
Model has 180 quadratic constraints
Presolve removed 0 rows and 1 columns
Presolve time: 1.05s
Presolved: 91 rows, 237 columns, 237 nonzeros
Variable types: 180 continuous, 57 integer (56 binary)

Root relaxation: objective 0.000000e+00, 29 iterations, 0.00 seconds

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

H    0     0                      53.0000000          -     -      -    1s
     0     0    0.00000    0    9   53.00000    0.00000   100%     -    1s
     0     0    0.00000    0   13   53.00000    0.00000   100%     -    1s
     0     0    0.00000    0   45   53.00000    0.00000   100%     -    1s
     0     2    0.00000    0   45   53.00000    0.00000   100%     -    1s
*   30    30              18      20.0000000    2.47619  87.6%  24.9    1s
*   60    40              17      15.0000000    4.01045  73.3%  18.6    1s
*  200    56              14      13.0000000    5.40000  58.5%  17.2    1s

Cutting planes:

Explored 572 nodes (9677 simplex iterations) in 1.27 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%