Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:59:17 2012

Optimize a model with 210 rows, 612 columns and 612 nonzeros
Model has 418 quadratic constraints
Presolve removed 0 rows and 20 columns
Presolve time: 2.42s
Presolved: 210 rows, 592 columns, 592 nonzeros
Variable types: 418 continuous, 174 integer (173 binary)

Root relaxation: objective 0.000000e+00, 75 iterations, 0.00 seconds

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

H    0     0                      98.0000000          -     -      -    2s
     0     0    0.00000    0    4   98.00000    0.00000   100%     -    2s
     0     0    0.00000    0    2   98.00000    0.00000   100%     -    2s
     0     0    0.00000    0    2   98.00000    0.00000   100%     -    2s
     0     2    0.00000    0    4   98.00000    0.00000   100%     -    2s
H   42    42                      17.0000000    0.00000   100%  45.1    2s
*   69    46              18      14.0000000    0.00000   100%  38.5    2s
*  123    60              16      13.0000000    1.90698  85.3%  30.3    2s
*  314    99              20      12.0000000    3.51500  70.7%  22.5    2s
  1319   155     cutoff   20        12.00000    8.07692  32.7%  32.0    5s

Explored 2192 nodes (73407 simplex iterations) in 6.54 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%