Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:42:12 2012

Optimize a model with 154 rows, 480 columns and 480 nonzeros
Model has 306 quadratic constraints
Presolve removed 0 rows and 28 columns
Presolve time: 1.79s
Presolved: 154 rows, 452 columns, 452 nonzeros
Variable types: 306 continuous, 146 integer (145 binary)

Root relaxation: objective 0.000000e+00, 55 iterations, 0.00 seconds

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

H    0     0                      73.0000000          -     -      -    1s
     0     0    0.00000    0    2   73.00000    0.00000   100%     -    1s
     0     0    0.00000    0    2   73.00000    0.00000   100%     -    1s
     0     0    0.00000    0   91   73.00000    0.00000   100%     -    1s
     0     2    0.00000    0   90   73.00000    0.00000   100%     -    1s
*   29    29              20       6.0000000    0.73333  87.8%  29.2    1s
*   47    22               8       4.0000000    1.07353  73.2%  24.0    1s

Cutting planes:

Explored 111 nodes (3163 simplex iterations) in 1.92 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%