Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:02 2012

Optimize a model with 1 rows, 53 columns and 53 nonzeros
Model has 58 quadratic objective terms
Presolve removed 0 rows and 2 columns
Presolve time: 0.00s
Presolved: 59 rows, 109 columns, 225 nonzeros
Variable types: 0 continuous, 109 integer (108 binary)
Found heuristic solution: objective 15.0000000

Root relaxation: objective 0.000000e+00, 79 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   16   15.00000    0.00000   100%     -    0s
     0     0    0.00000    0   15   15.00000    0.00000   100%     -    0s
     0     0    0.00000    0   32   15.00000    0.00000   100%     -    0s
H    0     0                      12.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   18   12.00000    0.00000   100%     -    0s
H    0     0                       8.0000000    0.00000   100%     -    0s
     0     0    0.00000    0    9    8.00000    0.00000   100%     -    0s
H    0     0                       5.0000000    0.00000   100%     -    0s
H    0     0                       4.0000000    0.00000   100%     -    0s
     0     0    0.00000    0    7    4.00000    0.00000   100%     -    0s
     0     0    0.00000    0    7    4.00000    0.00000   100%     -    0s
     0     0    0.00000    0    7    4.00000    0.00000   100%     -    0s
     0     0    0.00000    0    7    4.00000    0.00000   100%     -    0s
H    0     0                       3.0000000    0.00000   100%     -    0s
     0     2    0.00000    0    7    3.00000    0.00000   100%     -    0s

Cutting planes:
  Cover: 96
  MIR: 6
  Zero half: 4

Explored 160 nodes (2632 simplex iterations) in 0.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%