Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:58:56 2012

Optimize a model with 193 rows, 578 columns and 578 nonzeros
Model has 384 quadratic constraints
Presolve removed 0 rows and 19 columns
Presolve time: 2.24s
Presolved: 193 rows, 559 columns, 559 nonzeros
Variable types: 384 continuous, 175 integer (174 binary)

Root relaxation: objective 0.000000e+00, 69 iterations, 0.00 seconds

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

H    0     0                      90.0000000          -     -      -    2s
     0     0    0.00000    0   51   90.00000    0.00000   100%     -    2s
     0     0    0.00000    0   65   90.00000    0.00000   100%     -    2s
     0     0    0.00000    0    3   90.00000    0.00000   100%     -    2s
     0     2    0.00000    0    2   90.00000    0.00000   100%     -    2s
H   36    34                      13.0000000    0.55753  95.7%  33.6    2s
*   36    29              25      12.0000000    0.55753  95.4%  33.6    2s
H  187    70                      10.0000000    1.26990  87.3%  17.5    2s
*  188    61              13       9.0000000    1.26990  85.9%  17.5    2s
H  306    72                       9.0000000    2.91873  67.6%  16.9    2s
*  306    59               9       8.0000000    2.91873  63.5%  17.0    2s

Cutting planes:

Explored 637 nodes (12693 simplex iterations) in 2.71 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%