Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:39:35 2012

Optimize a model with 167 rows, 502 columns and 502 nonzeros
Model has 332 quadratic constraints
Presolve removed 0 rows and 17 columns
Presolve time: 1.94s
Presolved: 167 rows, 485 columns, 485 nonzeros
Variable types: 332 continuous, 153 integer (152 binary)

Root relaxation: objective 0.000000e+00, 59 iterations, 0.00 seconds

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

H    0     0                      77.0000000          -     -      -    1s
     0     0    0.00000    0    3   77.00000    0.00000   100%     -    1s
     0     0    0.00000    0   98   77.00000    0.00000   100%     -    1s
     0     0    0.00000    0   96   77.00000    0.00000   100%     -    2s
     0     2    0.00000    0   96   77.00000    0.00000   100%     -    2s
*   41    41              28      14.0000000    1.68750  87.9%  29.4    2s
H   62    39                      11.0000000    2.45503  77.7%  23.4    2s
*  148    63              28      10.0000000    2.52487  74.8%  15.4    2s
H  164    57                       9.0000000    3.31027  63.2%  15.7    2s
*  199    56              37       8.0000000    3.31027  58.6%  16.0    2s
*  410    60               8       7.0000000    5.11628  26.9%  13.6    2s

Explored 1189 nodes (22501 simplex iterations) in 3.62 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%