Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:41:23 2012 Optimize a model with 1 rows, 173 columns and 173 nonzeros Model has 155 quadratic objective terms Presolve removed 0 rows and 22 columns Presolve time: 0.00s Presolved: 156 rows, 306 columns, 616 nonzeros Variable types: 0 continuous, 306 integer (305 binary) Found heuristic solution: objective 35.0000000 Root relaxation: objective 0.000000e+00, 189 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 35.00000 0.00000 100% - 0s 0 0 0.00000 0 21 35.00000 0.00000 100% - 0s H 0 0 20.0000000 0.00000 100% - 0s 0 0 0.00000 0 25 20.00000 0.00000 100% - 0s H 0 0 13.0000000 0.00000 100% - 0s 0 0 0.00000 0 27 13.00000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s 0 0 0.00000 0 16 11.00000 0.00000 100% - 0s 0 0 0.00000 0 18 11.00000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 0 0.00000 0 21 10.00000 0.00000 100% - 0s 0 0 0.00000 0 12 10.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 2 0.00000 0 12 7.00000 0.00000 100% - 0s * 574 236 22 6.0000000 0.00000 100% 9.6 0s * 637 188 10 5.0000000 1.00000 80.0% 11.6 0s Cutting planes: Gomory: 1 Cover: 284 Explored 833 nodes (21163 simplex iterations) in 0.38 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%