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 124 quadratic objective terms
Presolve removed 0 rows and 33 columns
Presolve time: 0.00s
Presolved: 125 rows, 242 columns, 490 nonzeros
Variable types: 0 continuous, 242 integer (241 binary)
Found heuristic solution: objective 34.0000000

Root relaxation: objective 0.000000e+00, 147 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   30   34.00000    0.00000   100%     -    0s
H    0     0                      28.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   20   28.00000    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   10    9.00000    0.00000   100%     -    0s
     0     0    0.00000    0    9    9.00000    0.00000   100%     -    0s
H    0     0                       8.0000000    0.00000   100%     -    0s
H    0     0                       6.0000000    0.00000   100%     -    0s
     0     2    0.00000    0    9    6.00000    0.00000   100%     -    0s
H   81    49                       5.0000000    0.00000   100%   2.2    0s
*  380   133              33       4.0000000    0.00000   100%   6.1    0s

Cutting planes:
  Gomory: 2
  Cover: 228

Explored 595 nodes (11808 simplex iterations) in 0.22 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%