Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:35:23 2012

Optimize a model with 137 rows, 436 columns and 436 nonzeros
Model has 272 quadratic constraints
Presolve removed 0 rows and 32 columns
Presolve time: 1.59s
Presolved: 137 rows, 404 columns, 404 nonzeros
Variable types: 272 continuous, 132 integer (131 binary)

Root relaxation: objective 0.000000e+00, 49 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    2   60.00000    0.00000   100%     -    1s
     0     0    0.00000    0   17   60.00000    0.00000   100%     -    1s
     0     0    0.00000    0    6   60.00000    0.00000   100%     -    1s
     0     2    0.00000    0    4   60.00000    0.00000   100%     -    1s
H   24    23                       4.0000000    0.00000   100%  26.6    1s
H  153    69                       4.0000000    2.79965  30.0%  19.3    1s

Cutting planes:

Explored 236 nodes (4485 simplex iterations) in 1.74 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.999999999044e+00, best bound 3.999999999044e+00, gap 0.0%