Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:42:00 2012 Optimize a model with 1 rows, 174 columns and 174 nonzeros Model has 153 quadratic objective terms Presolve removed 0 rows and 30 columns Presolve time: 0.00s Presolved: 154 rows, 297 columns, 603 nonzeros Variable types: 0 continuous, 297 integer (296 binary) Found heuristic solution: objective 43.0000000 Root relaxation: objective 0.000000e+00, 184 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 43.00000 0.00000 100% - 0s H 0 0 26.0000000 0.00000 100% - 0s 0 0 0.00000 0 22 26.00000 0.00000 100% - 0s H 0 0 19.0000000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s 0 0 0.00000 0 29 17.00000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s 0 0 0.00000 0 22 16.00000 0.00000 100% - 0s 0 0 0.00000 0 11 16.00000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s H 0 0 8.0000000 0.00000 100% - 0s 0 0 0.00000 0 12 8.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 0 0.00000 0 19 7.00000 0.00000 100% - 0s 0 0 0.00000 0 15 7.00000 0.00000 100% - 0s 0 0 0.00000 0 13 7.00000 0.00000 100% - 0s 0 0 0.00000 0 20 7.00000 0.00000 100% - 0s 0 0 0.00000 0 12 7.00000 0.00000 100% - 0s 0 2 0.00000 0 12 7.00000 0.00000 100% - 0s H 514 230 6.0000000 0.00000 100% 8.1 0s * 560 155 5 5.0000000 1.00000 80.0% 11.7 0s Cutting planes: Cover: 289 Explored 728 nodes (18395 simplex iterations) in 0.35 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%