Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:11:10 2012

Optimize a model with 175 rows, 375 columns and 375 nonzeros
Model has 348 quadratic constraints
Presolve time: 2.02s
Presolved: 175 rows, 375 columns, 375 nonzeros
Variable types: 348 continuous, 27 integer (27 binary)

Root relaxation: objective 0.000000e+00, 13 iterations, 0.00 seconds

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

H    0     0                      89.0000000          -     -      -    2s
     0     0    0.00000    0   24   89.00000    0.00000   100%     -    2s
     0     0    0.58025    0   27   89.00000    0.58025  99.3%     -    2s
     0     2    0.74074    0   27   89.00000    0.74074  99.2%     -    2s
*   40    38              23      77.0000000    6.84722  91.1%  35.8    2s
*  112    85              20      76.0000000   14.26476  81.2%  34.7    2s
*  115    82              18      75.0000000   14.26476  81.0%  33.9    2s
*  199   142              15      70.0000000   15.48931  77.9%  40.3    2s
*  383   201              14      68.0000000   22.87145  66.4%  38.1    2s
  1053   457   66.77995   36  227   68.00000   29.73329  56.3%  44.1    5s
  6773  1685   52.11111   35  189   68.00000   47.90000  29.6%  24.2   10s
 13218  2017   61.37500   36  207   68.00000   54.80000  19.4%  21.3   15s
 19876  1237   66.84615   39  166   68.00000   60.20000  11.5%  20.3   20s

Explored 22717 nodes (449284 simplex iterations) in 21.78 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.800000000000e+01, best bound 6.800000000000e+01, gap 0.0%