Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:26:53 2012

Optimize a model with 1 rows, 151 columns and 151 nonzeros
Model has 115 quadratic objective terms
Presolve removed 0 rows and 31 columns
Presolve time: 0.00s
Presolved: 116 rows, 235 columns, 465 nonzeros
Variable types: 0 continuous, 235 integer (234 binary)
Found heuristic solution: objective 31.0000000

Root relaxation: objective 0.000000e+00, 141 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   29   31.00000    0.00000   100%     -    0s
H    0     0                      28.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   25   28.00000    0.00000   100%     -    0s
H    0     0                      18.0000000    0.00000   100%     -    0s
H    0     0                      17.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   14   17.00000    0.00000   100%     -    0s
H    0     0                       8.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   10    8.00000    0.00000   100%     -    0s
H    0     0                       5.0000000    0.00000   100%     -    0s
     0     0    0.00000    0    9    5.00000    0.00000   100%     -    0s
     0     0    0.00000    0    4    5.00000    0.00000   100%     -    0s
H    0     0                       4.0000000    0.00000   100%     -    0s
     0     0    0.00000    0    6    4.00000    0.00000   100%     -    0s
     0     0    0.00000    0    6    4.00000    0.00000   100%     -    0s
H    0     0                       3.0000000    0.00000   100%     -    0s
     0     2    0.00000    0    6    3.00000    0.00000   100%     -    0s
*   91    18              10       2.0000000    0.00000   100%   3.4    0s
H  253     7                       1.0000000    0.00000   100%   5.6    0s

Cutting planes:
  Cover: 132

Explored 254 nodes (1772 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.000000000000e+00, best bound 1.000000000000e+00, gap 0.0%