Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:33:34 2012
Optimize a model with 1 rows, 160 columns and 160 nonzeros
Model has 137 quadratic objective terms
Presolve removed 0 rows and 33 columns
Presolve time: 0.00s
Presolved: 138 rows, 264 columns, 538 nonzeros
Variable types: 0 continuous, 264 integer (263 binary)
Found heuristic solution: objective 38.0000000
Root relaxation: objective 0.000000e+00, 172 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 34 38.00000 0.00000 100% - 0s
H 0 0 33.0000000 0.00000 100% - 0s
0 0 0.00000 0 22 33.00000 0.00000 100% - 0s
H 0 0 19.0000000 0.00000 100% - 0s
0 0 0.00000 0 35 19.00000 0.00000 100% - 0s
H 0 0 17.0000000 0.00000 100% - 0s
0 0 0.00000 0 26 17.00000 0.00000 100% - 0s
0 0 0.00000 0 19 17.00000 0.00000 100% - 0s
H 0 0 16.0000000 0.00000 100% - 0s
0 0 0.00000 0 17 16.00000 0.00000 100% - 0s
H 0 0 14.0000000 0.00000 100% - 0s
0 0 0.00000 0 19 14.00000 0.00000 100% - 0s
0 0 0.00000 0 14 14.00000 0.00000 100% - 0s
H 0 0 12.0000000 0.00000 100% - 0s
0 0 0.00000 0 15 12.00000 0.00000 100% - 0s
0 0 0.00000 0 14 12.00000 0.00000 100% - 0s
H 0 0 11.0000000 0.00000 100% - 0s
H 0 0 10.0000000 0.00000 100% - 0s
0 2 0.00000 0 12 10.00000 0.00000 100% - 0s
H 54 42 9.0000000 0.00000 100% 1.6 0s
H 81 54 8.0000000 0.00000 100% 1.7 0s
H 433 212 7.0000000 0.00000 100% 6.5 0s
* 518 157 8 6.0000000 0.00000 100% 10.6 0s
Cutting planes:
Cover: 259
Explored 760 nodes (19482 simplex iterations) in 0.39 seconds
Thread count was 1 (of 16 available processors)
Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%