Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:57:49 2012

Optimize a model with 140 rows, 302 columns and 302 nonzeros
Model has 278 quadratic constraints
Presolve time: 1.61s
Presolved: 140 rows, 302 columns, 302 nonzeros
Variable types: 278 continuous, 24 integer (24 binary)

Root relaxation: objective 0.000000e+00, 12 iterations, 0.00 seconds

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

H    0     0                      73.0000000          -     -      -    1s
     0     0    0.00000    0   22   73.00000    0.00000   100%     -    1s
     0     0    0.50000    0   24   73.00000    0.50000  99.3%     -    1s
     0     0    0.50000    0   24   73.00000    0.50000  99.3%     -    1s
     0     2    0.50000    0   24   73.00000    0.50000  99.3%     -    1s
*   37    37              20      64.0000000    4.70000  92.7%  32.3    1s
*   40    34              18      62.0000000    4.70000  92.4%  30.3    1s
*   72    57              18      61.0000000    4.81429  92.1%  29.3    1s
*  221   166              20      60.0000000   15.36842  74.4%  32.5    1s
*  237   160              16      58.0000000   17.06667  70.6%  32.1    1s
* 1004   394              47      57.0000000   28.50000  50.0%  34.1    3s
H 1191   385                      56.0000000   33.66667  39.9%  31.6    3s
H 2273   478                      55.0000000   40.12594  27.0%  24.1    4s
* 2841   461              33      53.0000000   42.75000  19.3%  22.4    4s
  3156   402   49.46667   31  161   53.00000   44.36364  16.3%  22.1    5s

Explored 4071 nodes (84325 simplex iterations) in 5.98 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.300000000000e+01, best bound 5.300000000000e+01, gap 0.0%