Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:21:32 2012 Optimize a model with 1 rows, 129 columns and 129 nonzeros Model has 99 quadratic objective terms Presolve removed 0 rows and 23 columns Presolve time: 0.00s Presolved: 100 rows, 205 columns, 403 nonzeros Variable types: 0 continuous, 205 integer (204 binary) Found heuristic solution: objective 27.0000000 Root relaxation: objective 0.000000e+00, 136 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 17 27.00000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s 0 0 0.00000 0 13 16.00000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s 0 0 0.00000 0 13 12.00000 0.00000 100% - 0s 0 0 0.00000 0 11 12.00000 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 H 0 0 8.0000000 0.00000 100% - 0s 0 0 0.00000 0 8 8.00000 0.00000 100% - 0s 0 0 0.00000 0 15 8.00000 0.00000 100% - 0s 0 0 0.00000 0 15 8.00000 0.00000 100% - 0s H 0 0 6.0000000 0.00000 100% - 0s 0 2 0.00000 0 15 6.00000 0.00000 100% - 0s H 48 15 2.0000000 0.00000 100% 3.3 0s Cutting planes: Cover: 174 Explored 560 nodes (5945 simplex iterations) in 0.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%