Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:36 2012 Optimize a model with 1 rows, 37 columns and 37 nonzeros Model has 59 quadratic objective terms Presolve removed 0 rows and 2 columns Presolve time: 0.00s Presolved: 60 rows, 94 columns, 212 nonzeros Variable types: 0 continuous, 94 integer (93 binary) Found heuristic solution: objective 21.0000000 Root relaxation: objective 0.000000e+00, 79 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 21.00000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s 0 0 0.00000 0 16 17.00000 0.00000 100% - 0s H 0 0 13.0000000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s 0 0 0.00000 0 32 12.00000 0.00000 100% - 0s 0 0 0.00000 0 15 12.00000 0.00000 100% - 0s 0 0 0.00000 0 22 12.00000 0.00000 100% - 0s 0 0 0.00000 0 22 12.00000 0.00000 100% - 0s 0 2 0.00000 0 16 12.00000 0.00000 100% - 0s H 40 33 11.0000000 0.00000 100% 3.0 0s H 101 56 10.0000000 1.00000 90.0% 6.3 0s Cutting planes: Cover: 110 MIR: 3 Zero half: 2 Explored 199 nodes (2788 simplex iterations) in 0.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%