Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:25:51 2012

Optimize a model with 127 rows, 325 columns and 325 nonzeros
Model has 252 quadratic constraints
Presolve removed 0 rows and 1 columns
Presolve time: 1.47s
Presolved: 127 rows, 324 columns, 324 nonzeros
Variable types: 252 continuous, 72 integer (71 binary)

Root relaxation: objective 0.000000e+00, 35 iterations, 0.00 seconds

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

H    0     0                      59.0000000          -     -      -    1s
     0     0    0.00000    0   50   59.00000    0.00000   100%     -    1s
     0     0    0.30556    0   68   59.00000    0.30556  99.5%     -    1s
     0     0    0.30556    0   66   59.00000    0.30556  99.5%     -    1s
     0     2    0.41057    0   66   59.00000    0.41057  99.3%     -    1s
*   35    35              21      24.0000000    3.00654  87.5%  28.0    1s
*   64    57              22      23.0000000    3.13272  86.4%  28.3    1s
H  165   126                      22.0000000    5.14286  76.6%  27.6    1s
*  546   221              14      21.0000000    9.55556  54.5%  22.7    1s
*  786   261              22      19.0000000   11.28000  40.6%  28.8    3s

Explored 1485 nodes (40103 simplex iterations) in 3.91 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%