Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:57:46 2012

Optimize a model with 129 rows, 280 columns and 280 nonzeros
Model has 256 quadratic constraints
Presolve time: 1.49s
Presolved: 129 rows, 280 columns, 280 nonzeros
Variable types: 256 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                      60.0000000          -     -      -    1s
     0     0    0.00000    0   19   60.00000    0.00000   100%     -    1s
     0     0    0.25493    0   24   60.00000    0.25493   100%     -    1s
     0     2    0.25828    0   24   60.00000    0.25828   100%     -    1s
*   32    32              17      59.0000000    7.77778  86.8%  29.6    1s
H   53    41                      51.0000000    7.90909  84.5%  27.1    1s
H   54    42                      50.0000000    7.90909  84.2%  26.9    1s
H  134    86                      47.0000000   13.11111  72.1%  31.7    1s

Cutting planes:
  Gomory: 1

Explored 1583 nodes (38909 simplex iterations) in 2.44 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.700000000080e+01, best bound 4.700000000080e+01, gap 0.0%