Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:54:09 2012

Optimize a model with 1 rows, 21 columns and 21 nonzeros
Model has 111 quadratic objective terms
Modified 21 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 21 columns, 21 nonzeros
Presolved model has 132 quadratic objective terms
Variable types: 0 continuous, 21 integer (21 binary)
Found heuristic solution: objective 63.0000000

Root relaxation: objective 0.000000e+00, 23 iterations, 0.00 seconds

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

     0     0    0.00000    0   21   63.00000    0.00000   100%     -    0s
H    0     0                      52.0000000    0.00000   100%     -    0s
H    0     0                      50.0000000    0.00000   100%     -    0s
H    0     0                      48.0000000    0.00000   100%     -    0s
     0     2    2.12994    0   21   48.00000    2.12994  95.6%     -    0s
H  235   179                      47.0000000    9.89549  78.9%   2.0    0s
H  240   182                      46.0000000    9.89549  78.5%   2.0    0s
H  666   401                      45.0000000   14.56024  67.6%   2.1    0s
*  691   383              27      43.0000000   14.56024  66.1%   2.1    0s

Explored 19326 nodes (39141 simplex iterations) in 1.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.300000000000e+01, best bound 4.300000000000e+01, gap 0.0%