Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:40:14 2012

Optimize a model with 141 rows, 359 columns and 359 nonzeros
Model has 280 quadratic constraints
Presolve time: 1.63s
Presolved: 141 rows, 359 columns, 359 nonzeros
Variable types: 280 continuous, 79 integer (79 binary)

Root relaxation: objective 0.000000e+00, 39 iterations, 0.00 seconds

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

H    0     0                      63.0000000          -     -      -    1s
     0     0    0.00000    0    2   63.00000    0.00000   100%     -    1s
     0     0    0.00000    0    2   63.00000    0.00000   100%     -    1s
     0     0    0.00000    0   47   63.00000    0.00000   100%     -    1s
     0     2    0.00000    0   46   63.00000    0.00000   100%     -    1s
H   27    27                      37.0000000    4.85000  86.9%  31.3    1s
H   39    39                      30.0000000    4.85000  83.8%  25.9    1s
*   41    39              27      28.0000000    4.85000  82.7%  25.7    1s
*   70    48              22      24.0000000    5.38462  77.6%  26.0    1s
*  156    63              13      19.0000000    7.00000  63.2%  25.3    1s

Cutting planes:

Explored 1105 nodes (24339 simplex iterations) in 2.30 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.900000000000e+01, best bound 1.900000000000e+01, gap 0.0%