Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:50:39 2012

Optimize a model with 161 rows, 499 columns and 499 nonzeros
Model has 320 quadratic constraints
Presolve removed 0 rows and 24 columns
Presolve time: 1.86s
Presolved: 161 rows, 475 columns, 475 nonzeros
Variable types: 320 continuous, 155 integer (154 binary)

Root relaxation: objective 0.000000e+00, 57 iterations, 0.00 seconds

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

H    0     0                      80.0000000          -     -      -    1s
     0     0    0.00000    0   32   80.00000    0.00000   100%     -    1s
     0     0    0.00000    0   42   80.00000    0.00000   100%     -    1s
     0     0    0.00000    0   32   80.00000    0.00000   100%     -    1s
     0     2    0.00000    0   92   80.00000    0.00000   100%     -    1s
H   27    27                      10.0000000    0.54545  94.5%  41.9    1s
H   34    34                       7.0000000    0.54545  92.2%  34.7    1s
*   34    28              25       6.0000000    0.54545  90.9%  34.7    1s
H   40    16                       4.0000000    0.59091  85.2%  31.0    1s
H   77    12                       4.0000000    2.09756  47.6%  25.5    2s
*  153     2               9       3.0000000    2.45455  18.2%  16.4    2s

Cutting planes:

Explored 156 nodes (3481 simplex iterations) in 2.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%