Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:41:59 2012
Optimize a model with 1 rows, 174 columns and 174 nonzeros
Model has 155 quadratic objective terms
Presolve removed 0 rows and 22 columns
Presolve time: 0.00s
Presolved: 156 rows, 307 columns, 617 nonzeros
Variable types: 0 continuous, 307 integer (306 binary)
Found heuristic solution: objective 46.0000000
Root relaxation: objective 0.000000e+00, 201 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 44 46.00000 0.00000 100% - 0s
H 0 0 39.0000000 0.00000 100% - 0s
0 0 0.00000 0 37 39.00000 0.00000 100% - 0s
H 0 0 31.0000000 0.00000 100% - 0s
0 0 0.00000 0 29 31.00000 0.00000 100% - 0s
H 0 0 18.0000000 0.00000 100% - 0s
H 0 0 15.0000000 0.00000 100% - 0s
0 0 0.00000 0 33 15.00000 0.00000 100% - 0s
0 0 0.00000 0 22 15.00000 0.00000 100% - 0s
0 0 0.00000 0 22 15.00000 0.00000 100% - 0s
0 0 0.00000 0 21 15.00000 0.00000 100% - 0s
H 0 0 12.0000000 0.00000 100% - 0s
0 2 0.00000 0 20 12.00000 0.00000 100% - 0s
H 27 27 11.0000000 0.00000 100% 1.4 0s
H 54 44 10.0000000 0.00000 100% 1.9 0s
H 244 140 8.0000000 0.00000 100% 3.3 0s
H 271 135 7.0000000 0.00000 100% 3.3 0s
H 488 93 4.0000000 0.00000 100% 6.7 0s
Cutting planes:
Cover: 278
Explored 624 nodes (11096 simplex iterations) in 0.23 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%