Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:34:38 2012

Optimize a model with 142 rows, 359 columns and 359 nonzeros
Model has 282 quadratic constraints
Presolve removed 0 rows and 1 columns
Presolve time: 1.64s
Presolved: 142 rows, 358 columns, 358 nonzeros
Variable types: 282 continuous, 76 integer (75 binary)

Root relaxation: objective 0.000000e+00, 38 iterations, 0.00 seconds

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

H    0     0                      70.0000000          -     -      -    1s
     0     0    0.00000    0   55   70.00000    0.00000   100%     -    1s
     0     0    0.26923    0   72   70.00000    0.26923   100%     -    1s
     0     0    0.26923    0   72   70.00000    0.26923   100%     -    1s
     0     2    0.26923    0   72   70.00000    0.26923   100%     -    1s
H    8     8                      64.0000000    2.42373  96.2%  50.5    1s
*   40    40              24      31.0000000    2.42373  92.2%  35.9    1s
H   71    58                      28.0000000    2.42857  91.3%  33.6    1s
*   77    60              21      27.0000000    2.42857  91.0%  32.4    1s
*  319   179              16      26.0000000    7.26939  72.0%  28.8    1s
*  500   227              13      25.0000000    9.36443  62.5%  27.4    2s
  2275   658   23.28814   30  213   25.00000   14.65385  41.4%  22.3    5s
* 3660   860              35      24.0000000   16.54688  31.1%  20.0    6s
  6041   727   22.50000   33  206   24.00000   19.00000  20.8%  18.7   10s

Explored 8172 nodes (144237 simplex iterations) in 12.83 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%