Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:23:18 2012

Optimize a model with 138 rows, 344 columns and 344 nonzeros
Model has 274 quadratic constraints
Presolve time: 1.60s
Presolved: 138 rows, 344 columns, 344 nonzeros
Variable types: 274 continuous, 70 integer (70 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                      77.0000000          -     -      -    1s
     0     0    0.00000    0   27   77.00000    0.00000   100%     -    1s
     0     0    0.00000    0   38   77.00000    0.00000   100%     -    1s
     0     0    0.00000    0   38   77.00000    0.00000   100%     -    1s
     0     2    0.00000    0   38   77.00000    0.00000   100%     -    1s
H   27    27                      54.0000000    2.43396  95.5%  35.7    1s
H   32    32                      39.0000000    2.43396  93.8%  31.2    1s
H   45    45                      33.0000000    2.43396  92.6%  24.7    1s
H   83    66                      31.0000000    2.46154  92.1%  24.2    1s
H  123    82                      29.0000000    3.60494  87.6%  24.1    1s
*  124    78              24      28.0000000    3.60494  87.1%  24.0    1s
*  265   170              24      27.0000000    5.49180  79.7%  26.8    1s
H  354   185                      25.0000000    7.05350  71.8%  27.7    1s
  3581   283   24.66667   37  165   25.00000   20.75000  17.0%  20.3    5s
* 3961    97              37      24.0000000   22.00000  8.33%  19.9    5s

Explored 4064 nodes (80211 simplex iterations) in 5.32 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.400000000000e+01, best bound 2.400000000000e+01, gap 0.0%