Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:46:48 2012

Optimize a model with 115 rows, 274 columns and 274 nonzeros
Model has 228 quadratic constraints
Presolve time: 1.33s
Presolved: 115 rows, 274 columns, 274 nonzeros
Variable types: 228 continuous, 46 integer (46 binary)

Root relaxation: objective 0.000000e+00, 23 iterations, 0.00 seconds

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

H    0     0                      53.0000000          -     -      -    1s
     0     0    0.00000    0   10   53.00000    0.00000   100%     -    1s
     0     0    0.00000    0   13   53.00000    0.00000   100%     -    1s
     0     0    0.00000    0   43   53.00000    0.00000   100%     -    1s
     0     2    0.00000    0   43   53.00000    0.00000   100%     -    1s
*   39    39              23      32.0000000    5.19355  83.8%  26.6    1s
*  106    85              21      31.0000000    6.52632  78.9%  22.3    1s
H  143   110                      30.0000000    6.96632  76.8%  24.8    1s
*  145   106              16      29.0000000    6.96632  76.0%  24.7    1s
*  467   193              13      28.0000000   13.80000  50.7%  23.1    1s
*  741   275              42      27.0000000   16.10000  40.4%  29.9    2s
* 1747   308              39      26.0000000   18.00000  30.8%  23.6    2s
* 1807   297              34      25.0000000   18.16667  27.3%  23.2    2s

Explored 2701 nodes (56611 simplex iterations) in 3.56 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.500000000000e+01, best bound 2.500000000000e+01, gap 0.0%