Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:34:45 2012 Optimize a model with 1 rows, 163 columns and 163 nonzeros Model has 133 quadratic objective terms Presolve removed 0 rows and 31 columns Presolve time: 0.00s Presolved: 134 rows, 265 columns, 531 nonzeros Variable types: 0 continuous, 265 integer (264 binary) Found heuristic solution: objective 33.0000000 Root relaxation: objective 0.000000e+00, 161 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 39 33.00000 0.00000 100% - 0s 0 0 0.00000 0 23 33.00000 0.00000 100% - 0s H 0 0 23.0000000 0.00000 100% - 0s 0 0 0.00000 0 20 23.00000 0.00000 100% - 0s H 0 0 15.0000000 0.00000 100% - 0s H 0 0 13.0000000 0.00000 100% - 0s 0 0 0.00000 0 24 13.00000 0.00000 100% - 0s 0 0 0.00000 0 12 13.00000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 0 0.00000 0 17 10.00000 0.00000 100% - 0s 0 0 0.00000 0 16 10.00000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 0 0.00000 0 15 9.00000 0.00000 100% - 0s 0 0 0.00000 0 13 9.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 0 0.00000 0 12 7.00000 0.00000 100% - 0s 0 0 0.00000 0 14 7.00000 0.00000 100% - 0s 0 0 0.00000 0 9 7.00000 0.00000 100% - 0s 0 0 0.00000 0 13 7.00000 0.00000 100% - 0s 0 0 0.00000 0 13 7.00000 0.00000 100% - 0s 0 2 0.00000 0 13 7.00000 0.00000 100% - 0s H 82 42 6.0000000 0.00000 100% 2.6 0s H 264 84 5.0000000 0.00000 100% 6.2 0s H 353 71 4.0000000 0.00000 100% 7.9 0s * 414 45 16 3.0000000 0.18182 93.9% 9.5 0s Cutting planes: Cover: 236 Explored 465 nodes (7824 simplex iterations) in 0.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%