Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:04:49 2012

Optimize a model with 177 rows, 409 columns and 409 nonzeros
Model has 352 quadratic constraints
Presolve time: 2.05s
Presolved: 177 rows, 409 columns, 409 nonzeros
Variable types: 352 continuous, 57 integer (57 binary)

Root relaxation: objective 0.000000e+00, 28 iterations, 0.00 seconds

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

H    0     0                      92.0000000          -     -      -    2s
     0     0    0.00000    0   37   92.00000    0.00000   100%     -    2s
     0     0    0.21962    0   56   92.00000    0.21962   100%     -    2s
     0     2    0.24658    0   56   92.00000    0.24658   100%     -    2s
H   46    46                      48.0000000    4.34328  91.0%  32.5    2s
  1418   645   43.68700   42  253   48.00000   17.45455  63.6%  39.8    5s
* 2428   955              52      47.0000000   21.73630  53.8%  31.8    6s
H 2892  1092                      45.0000000   23.45000  47.9%  30.1    6s
  4680  1691   36.91519   41  240   45.00000   26.60000  40.9%  26.1   10s
  6027  2061   40.88889   41  238   45.00000   28.00932  37.8%  24.3   15s
  8967  2674   41.50000   52  238   45.00000   30.41176  32.4%  22.5   20s
 12387  3240     cutoff   53        45.00000   32.12500  28.6%  21.4   25s
 17072  3522   41.50000   44  228   45.00000   34.00000  24.4%  20.7   30s
 21622  3575   36.71429   38  230   45.00000   35.66667  20.7%  20.1   35s
 26406  3335   41.07416   38  246   45.00000   37.28560  17.1%  19.8   40s
 31106  2633   43.17949   44  227   45.00000   38.82353  13.7%  19.5   45s
 36504   406   43.54545   47  203   45.00000   42.20412  6.21%  19.2   50s

Explored 37032 nodes (707114 simplex iterations) in 50.28 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.500000000005e+01, best bound 4.500000000005e+01, gap 0.0%