Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:51:55 2012

Optimize a model with 170 rows, 520 columns and 520 nonzeros
Model has 338 quadratic constraints
Presolve removed 0 rows and 22 columns
Presolve time: 1.97s
Presolved: 170 rows, 498 columns, 498 nonzeros
Variable types: 338 continuous, 160 integer (159 binary)

Root relaxation: objective 0.000000e+00, 61 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

H    0     0                      83.0000000          -     -      -    1s
     0     0    0.00000    0   33   83.00000    0.00000   100%     -    1s
     0     0    0.00000    0   39   83.00000    0.00000   100%     -    1s
     0     0    0.00000    0   39   83.00000    0.00000   100%     -    2s
     0     2    0.00000    0   39   83.00000    0.00000   100%     -    2s
H   39    39                       9.0000000    1.58824  82.4%  31.3    2s
H  137    95                       8.0000000    1.88571  76.4%  16.9    2s
*  179    82              34       7.0000000    2.00000  71.4%  15.3    2s
H  301    90                       6.0000000    3.43750  42.7%  15.8    2s
*  500     2              11       5.0000000    5.00000   0.0%  15.5    2s

Cutting planes:
  Gomory: 1

Explored 501 nodes (8990 simplex iterations) in 2.33 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%