Gurobi 5.0.1 (linux64) logging started Sun Nov 18 09:19:19 2012

Optimize a model with 318 rows, 875 columns and 875 nonzeros
Model has 634 quadratic constraints
Presolve removed 0 rows and 16 columns
Presolve time: 3.71s
Presolved: 318 rows, 859 columns, 859 nonzeros
Variable types: 634 continuous, 225 integer (224 binary)

Root relaxation: objective 0.000000e+00, 83 iterations, 0.00 seconds

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

H    0     0                     150.0000000          -     -      -    3s
     0     0    0.00000    0    3  150.00000    0.00000   100%     -    3s
     0     0    0.00000    0  145  150.00000    0.00000   100%     -    3s
     0     0    0.00000    0  163  150.00000    0.00000   100%     -    3s
     0     2    0.00000    0  159  150.00000    0.00000   100%     -    3s
H   37    35                      27.0000000    2.77156  89.7%  54.6    4s
*  315   204              44      26.0000000    5.56993  78.6%  33.6    4s
   603   295   24.00000   12  532   26.00000   10.23810  60.6%  30.8    5s
*  810   359              46      25.0000000   10.23810  59.0%  48.8    6s
*  817   325              50      24.0000000   10.23810  57.3%  48.8    6s
  1865   236   22.10465   33  483   24.00000   17.42857  27.4%  42.4   10s
  2823   129   22.33333   35  511   24.00000   19.82873  17.4%  39.6   15s
  2997    84   22.92857   36  508   24.00000   20.46269  14.7%  39.6   20s

Explored 3165 nodes (125550 simplex iterations) in 20.88 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%