Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:31:48 2012

Optimize a model with 247 rows, 709 columns and 709 nonzeros
Model has 492 quadratic constraints
Presolve removed 0 rows and 23 columns
Presolve time: 2.87s
Presolved: 247 rows, 686 columns, 686 nonzeros
Variable types: 492 continuous, 194 integer (193 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                     114.0000000          -     -      -    2s
     0     0    0.00000    0   97  114.00000    0.00000   100%     -    2s
     0     0    0.00000    0  153  114.00000    0.00000   100%     -    2s
     0     0    0.00000    0  128  114.00000    0.00000   100%     -    3s
     0     2    0.00000    0  118  114.00000    0.00000   100%     -    3s
H   47    47                      24.0000000    2.03704  91.5%  30.1    3s
*   48    48              33      22.0000000    2.03704  90.7%  29.8    3s
H  153   110                      20.0000000    3.22642  83.9%  24.6    3s
*  235   148              23      19.0000000    3.69863  80.5%  24.8    3s
*  241   137              24      18.0000000    3.69863  79.5%  24.6    3s
*  457   172              18      17.0000000    6.12000  64.0%  22.4    3s
   659   234    7.00000   19  424   17.00000    6.96774  59.0%  30.1    5s

Explored 3793 nodes (93122 simplex iterations) in 9.98 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%