Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:19:49 2012

Optimize a model with 227 rows, 665 columns and 665 nonzeros
Model has 452 quadratic constraints
Presolve removed 0 rows and 27 columns
Presolve time: 2.78s
Presolved: 227 rows, 638 columns, 638 nonzeros
Variable types: 452 continuous, 186 integer (185 binary)

Root relaxation: objective 0.000000e+00, 79 iterations, 0.00 seconds

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

H    0     0                     117.0000000          -     -      -    2s
     0     0    0.00000    0   15  117.00000    0.00000   100%     -    2s
     0     0    0.00000    0   19  117.00000    0.00000   100%     -    2s
     0     0    0.00000    0    3  117.00000    0.00000   100%     -    2s
     0     2    0.00000    0  130  117.00000    0.00000   100%     -    2s
H   44    44                      22.0000000    1.85415  91.6%  47.8    3s
*   45    44              31      21.0000000    1.85415  91.2%  49.8    3s
H   81    61                      19.0000000    2.24000  88.2%  33.9    3s
H  152    90                      17.0000000    2.32672  86.3%  27.1    3s
*  660   337              43      16.0000000    5.66197  64.6%  27.7    4s
H  747   337                      15.0000000    5.66197  62.3%  30.9    4s
   822   334   13.78947   26  517   15.00000    5.66197  62.3%  33.6    5s
H 1744   337                      14.0000000    8.18625  41.5%  40.1    7s
  2414   384   13.80822   24  499   14.00000    9.60010  31.4%  42.4   10s
  3088   378   12.55981   23  487   14.00000   10.60000  24.3%  43.1   17s
  3645   335   13.08257   24  421   14.00000   11.30780  19.2%  43.7   20s

Explored 4596 nodes (192706 simplex iterations) in 21.69 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%