Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:27 2012

Optimize a model with 1 rows, 55 columns and 55 nonzeros
Model has 90 quadratic objective terms
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 91 rows, 144 columns, 324 nonzeros
Variable types: 0 continuous, 144 integer (143 binary)
Found heuristic solution: objective 36.0000000

Root relaxation: objective 0.000000e+00, 114 iterations, 0.00 seconds

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

     0     0    0.00000    0   28   36.00000    0.00000   100%     -    0s
H    0     0                      26.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   38   26.00000    0.00000   100%     -    0s
H    0     0                      24.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   28   24.00000    0.00000   100%     -    0s
     0     0    0.00000    0   29   24.00000    0.00000   100%     -    0s
     0     0    0.00000    0   29   24.00000    0.00000   100%     -    0s
H    0     0                      22.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   27   22.00000    0.00000   100%     -    0s
H   95    72                      19.0000000    0.00000   100%   4.6    0s
H  108    81                      18.0000000    0.00000   100%   5.0    0s
H  158    89                      15.0000000    0.00000   100%   6.5    0s
H  184    99                      14.0000000    0.00000   100%   7.4    0s
*  186    80              15      12.0000000    0.00000   100%   7.5    0s

Cutting planes:
  Cover: 171
  MIR: 2

Explored 452 nodes (8164 simplex iterations) in 0.15 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%