Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:11:06 2012 Optimize a model with 1 rows, 48 columns and 48 nonzeros Model has 68 quadratic objective terms Presolve removed 0 rows and 2 columns Presolve time: 0.00s Presolved: 69 rows, 114 columns, 250 nonzeros Variable types: 0 continuous, 114 integer (113 binary) Found heuristic solution: objective 25.0000000 Root relaxation: objective 0.000000e+00, 85 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 18 25.00000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s 0 0 0.00000 0 35 16.00000 0.00000 100% - 0s 0 0 0.00000 0 11 16.00000 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 22 10.00000 0.00000 100% - 0s 0 0 0.00000 0 14 10.00000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 2 0.00000 0 14 9.00000 0.00000 100% - 0s Cutting planes: Cover: 129 MIR: 4 Zero half: 5 Explored 303 nodes (5444 simplex iterations) in 0.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%