Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:19:53 2012

Optimize a model with 91 rows, 243 columns and 243 nonzeros
Model has 180 quadratic constraints
Presolve removed 0 rows and 3 columns
Presolve time: 1.05s
Presolved: 91 rows, 240 columns, 240 nonzeros
Variable types: 180 continuous, 60 integer (59 binary)

Root relaxation: objective 0.000000e+00, 31 iterations, 0.00 seconds

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

H    0     0                      46.0000000          -     -      -    1s
     0     0    0.00000    0    3   46.00000    0.00000   100%     -    1s
     0     0    0.00000    0    3   46.00000    0.00000   100%     -    1s
     0     0    0.00000    0   43   46.00000    0.00000   100%     -    1s
     0     2    0.00000    0   41   46.00000    0.00000   100%     -    1s
*   27    26              19      15.0000000    4.00000  73.3%  26.1    1s
*   98    56              17      13.0000000    4.33333  66.7%  19.7    1s
H  281    70                      12.0000000    6.88000  42.7%  15.6    1s

Cutting planes:

Explored 637 nodes (9461 simplex iterations) in 1.27 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%