Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:24 2012 Optimize a model with 1 rows, 36 columns and 36 nonzeros Model has 58 quadratic objective terms Presolve time: 0.00s Presolved: 59 rows, 94 columns, 210 nonzeros Variable types: 0 continuous, 94 integer (94 binary) Found heuristic solution: objective 28.0000000 Root relaxation: objective 0.000000e+00, 70 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 13 28.00000 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 0 0 0.00000 0 16 13.00000 0.00000 100% - 0s 0 0 0.00000 0 16 13.00000 0.00000 100% - 0s 0 0 0.00000 0 14 13.00000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s 0 2 0.00000 0 14 12.00000 0.00000 100% - 0s H 120 73 11.0000000 1.00000 90.9% 6.2 0s * 121 61 8 10.0000000 1.00000 90.0% 6.3 0s Cutting planes: Gomory: 1 Cover: 108 MIR: 2 Zero half: 3 Explored 220 nodes (2773 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%