Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:44:35 2012 Optimize a model with 1 rows, 177 columns and 177 nonzeros Model has 166 quadratic objective terms Presolve removed 0 rows and 23 columns Presolve time: 0.00s Presolved: 167 rows, 320 columns, 652 nonzeros Variable types: 0 continuous, 320 integer (319 binary) Found heuristic solution: objective 55.0000000 Root relaxation: objective 0.000000e+00, 209 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 41 55.00000 0.00000 100% - 0s H 0 0 39.0000000 0.00000 100% - 0s 0 0 0.00000 0 35 39.00000 0.00000 100% - 0s H 0 0 33.0000000 0.00000 100% - 0s 0 0 0.00000 0 24 33.00000 0.00000 100% - 0s H 0 0 17.0000000 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 52 14.00000 0.00000 100% - 0s 0 0 0.00000 0 26 14.00000 0.00000 100% - 0s 0 0 0.00000 0 22 14.00000 0.00000 100% - 0s 0 0 0.00000 0 16 14.00000 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 32 10.00000 0.00000 100% - 0s 0 0 0.00000 0 32 10.00000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 2 0.00000 0 32 9.00000 0.00000 100% - 0s H 484 203 8.0000000 0.00000 100% 11.8 0s H 488 154 7.0000000 0.00000 100% 11.9 0s * 573 122 10 6.0000000 1.00000 83.3% 12.5 0s Cutting planes: Cover: 304 MIR: 10 Zero half: 4 Explored 737 nodes (20580 simplex iterations) in 0.43 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%