Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:48 2012 Optimize a model with 1 rows, 32 columns and 32 nonzeros Model has 53 quadratic objective terms Presolve removed 0 rows and 1 columns Presolve time: 0.00s Presolved: 54 rows, 84 columns, 190 nonzeros Variable types: 0 continuous, 84 integer (83 binary) Found heuristic solution: objective 21.0000000 Root relaxation: objective 0.000000e+00, 63 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 21.00000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s 0 0 0.00000 0 19 16.00000 0.00000 100% - 0s H 0 0 14.0000000 0.00000 100% - 0s 0 0 0.00000 0 15 14.00000 0.00000 100% - 0s 0 0 0.00000 0 17 14.00000 0.00000 100% - 0s 0 0 0.00000 0 17 14.00000 0.00000 100% - 0s 0 0 0.00000 0 17 14.00000 0.00000 100% - 0s 0 2 0.00000 0 17 14.00000 0.00000 100% - 0s H 100 64 13.0000000 0.00000 100% 4.7 0s * 103 58 9 12.0000000 0.00000 100% 4.7 0s H 132 52 10.0000000 1.00000 90.0% 6.2 0s * 145 36 5 9.0000000 1.00000 88.9% 7.3 0s Cutting planes: Gomory: 1 Cover: 98 Explored 184 nodes (1779 simplex iterations) in 0.04 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%