Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:10:22 2012

Optimize a model with 1 rows, 27 columns and 27 nonzeros
Model has 174 quadratic objective terms
Modified 27 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 27 columns, 27 nonzeros
Presolved model has 201 quadratic objective terms
Variable types: 0 continuous, 27 integer (27 binary)
Found heuristic solution: objective 92.0000000

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

     0     0    0.00000    0   27   92.00000    0.00000   100%     -    0s
H    0     0                      88.0000000    0.00000   100%     -    0s
H    0     0                      84.0000000    0.00000   100%     -    0s
H    0     0                      76.0000000    0.00000   100%     -    0s
     0     2    2.88084    0   27   76.00000    2.88084  96.2%     -    0s
H  173   132                      75.0000000   11.15270  85.1%   2.0    0s
*  532   362              13      68.0000000   15.41639  77.3%   2.0    0s
 93248 25568   63.78879   27    9   68.00000   51.44182  24.4%   2.0    5s
 189154 35783   60.35330   27    9   68.00000   55.49081  18.4%   2.0   10s
 289060 35153   65.77313   27    9   68.00000   58.24823  14.3%   2.0   15s
 390680 22363   64.88149   27    9   68.00000   61.41617  9.68%   2.0   20s

Explored 449059 nodes (903346 simplex iterations) in 23.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.800000000000e+01, best bound 6.800000000000e+01, gap 0.0%