Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:48 2012

Optimize a model with 1 rows, 46 columns and 46 nonzeros
Model has 54 quadratic objective terms
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 55 rows, 99 columns, 207 nonzeros
Variable types: 0 continuous, 99 integer (98 binary)
Found heuristic solution: objective 19.0000000

Root relaxation: objective 0.000000e+00, 81 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   15   19.00000    0.00000   100%     -    0s
H    0     0                      15.0000000    0.00000   100%     -    0s
H    0     0                      14.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   10   14.00000    0.00000   100%     -    0s
H    0     0                       9.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   18    9.00000    0.00000   100%     -    0s
     0     0    0.00000    0   13    9.00000    0.00000   100%     -    0s
     0     0    0.00000    0   15    9.00000    0.00000   100%     -    0s
     0     0    0.00000    0   15    9.00000    0.00000   100%     -    0s
H    0     0                       8.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   15    8.00000    0.00000   100%     -    0s
H   94    20                       4.0000000    0.00000   100%   5.0    0s

Cutting planes:
  Gomory: 3
  Cover: 92

Explored 146 nodes (1651 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%