Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:11:26 2012

Optimize a model with 1 rows, 50 columns and 50 nonzeros
Model has 50 quadratic objective terms
Presolve removed 0 rows and 11 columns
Presolve time: 0.00s
Presolved: 51 rows, 89 columns, 189 nonzeros
Variable types: 0 continuous, 89 integer (88 binary)
Found heuristic solution: objective 14.0000000

Root relaxation: objective 0.000000e+00, 55 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   10   14.00000    0.00000   100%     -    0s
H    0     0                      10.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   21   10.00000    0.00000   100%     -    0s
     0     0    0.00000    0   16   10.00000    0.00000   100%     -    0s
H    0     0                       9.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   12    9.00000    0.00000   100%     -    0s
H    0     0                       8.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   13    8.00000    0.00000   100%     -    0s
     0     0    0.00000    0   13    8.00000    0.00000   100%     -    0s
H    0     0                       7.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   13    7.00000    0.00000   100%     -    0s
*  128    51               7       6.0000000    0.00000   100%   5.8    0s
*  134    24               8       4.0000000    0.00000   100%   6.0    0s

Cutting planes:
  Cover: 92
  MIR: 1
  Zero half: 2

Explored 163 nodes (1587 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%