Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:56:32 2012

Optimize a model with 173 rows, 534 columns and 534 nonzeros
Model has 344 quadratic constraints
Presolve removed 0 rows and 20 columns
Presolve time: 2.01s
Presolved: 173 rows, 514 columns, 514 nonzeros
Variable types: 344 continuous, 170 integer (169 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                      84.0000000          -     -      -    2s
     0     0    0.00000    0    3   84.00000    0.00000   100%     -    2s
     0     0    0.00000    0   68   84.00000    0.00000   100%     -    2s
     0     0    0.00000    0   41   84.00000    0.00000   100%     -    2s
     0     2    0.00000    0  104   84.00000    0.00000   100%     -    2s
*   21    19              13       6.0000000    0.97701  83.7%  59.0    2s
H   82    42                       5.0000000    1.43860  71.2%  23.4    2s
H   88    46                       5.0000000    1.43860  71.2%  22.0    2s
*  126    20              10       4.0000000    1.90000  52.5%  17.4    2s

Cutting planes:

Explored 191 nodes (3944 simplex iterations) in 2.19 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%