Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:41 2012

Optimize a model with 1 rows, 31 columns and 31 nonzeros
Model has 62 quadratic objective terms
Presolve time: 0.00s
Presolved: 63 rows, 93 columns, 217 nonzeros
Variable types: 0 continuous, 93 integer (93 binary)
Found heuristic solution: objective 34.0000000
Found heuristic solution: objective 30.0000000

Root relaxation: objective 0.000000e+00, 73 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   19   30.00000    0.00000   100%     -    0s
H    0     0                      19.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   28   19.00000    0.00000   100%     -    0s
     0     0    0.00000    0   11   19.00000    0.00000   100%     -    0s
H    0     0                      11.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   25   11.00000    0.00000   100%     -    0s
     0     0    0.00000    0   16   11.00000    0.00000   100%     -    0s
     0     0    0.00000    0   17   11.00000    0.00000   100%     -    0s
     0     0    0.00000    0   17   11.00000    0.00000   100%     -    0s
     0     2    0.00000    0   17   11.00000    0.00000   100%     -    0s

Cutting planes:
  Cover: 112

Explored 259 nodes (3172 simplex iterations) in 0.06 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0%