Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:40 2012

Optimize a model with 1 rows, 45 columns and 45 nonzeros
Model has 52 quadratic objective terms
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 53 rows, 96 columns, 200 nonzeros
Variable types: 0 continuous, 96 integer (95 binary)
Found heuristic solution: objective 21.0000000

Root relaxation: objective 0.000000e+00, 72 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   24   21.00000    0.00000   100%     -    0s
H    0     0                      14.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   17   14.00000    0.00000   100%     -    0s
H    0     0                      11.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   19   11.00000    0.00000   100%     -    0s
     0     0    0.00000    0   10   11.00000    0.00000   100%     -    0s
H    0     0                       9.0000000    0.00000   100%     -    0s
H    0     0                       8.0000000    0.00000   100%     -    0s
H    0     0                       6.0000000    0.00000   100%     -    0s
H    0     0                       5.0000000    0.00000   100%     -    0s
     0     2    0.00000    0    7    5.00000    0.00000   100%     -    0s
H   55    29                       4.0000000    0.00000   100%   3.6    0s

Cutting planes:
  Cover: 90
  MIR: 2

Explored 175 nodes (1918 simplex iterations) in 0.04 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%