Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:37:37 2012 Optimize a model with 1 rows, 16 columns and 16 nonzeros Model has 15 quadratic objective terms Presolve removed 0 rows and 3 columns Presolve time: 0.00s Presolved: 16 rows, 28 columns, 58 nonzeros Variable types: 0 continuous, 28 integer (27 binary) Found heuristic solution: objective 3.0000000 Root relaxation: objective 0.000000e+00, 22 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 6 3.00000 0.00000 100% - 0s 0 0 0.00000 0 2 3.00000 0.00000 100% - 0s H 0 0 2.0000000 0.00000 100% - 0s 0 0 0.00000 0 13 2.00000 0.00000 100% - 0s 0 0 0.00000 0 5 2.00000 0.00000 100% - 0s 0 0 0.00000 0 4 2.00000 0.00000 100% - 0s 0 0 0.00000 0 6 2.00000 0.00000 100% - 0s 0 0 0.00000 0 6 2.00000 0.00000 100% - 0s 0 2 0.00000 0 6 2.00000 0.00000 100% - 0s Cutting planes: Cover: 18 MIR: 2 Explored 36 nodes (176 simplex iterations) in 0.01 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%