Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:39 2012 Optimize a model with 1 rows, 35 columns and 35 nonzeros Model has 36 quadratic objective terms Presolve removed 0 rows and 2 columns Presolve time: 0.00s Presolved: 37 rows, 69 columns, 141 nonzeros Variable types: 0 continuous, 69 integer (68 binary) Found heuristic solution: objective 11.0000000 Root relaxation: objective 0.000000e+00, 49 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 11.00000 0.00000 100% - 0s H 0 0 6.0000000 0.00000 100% - 0s 0 0 0.00000 0 5 6.00000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 0 0.00000 0 5 5.00000 0.00000 100% - 0s 0 0 0.00000 0 7 5.00000 0.00000 100% - 0s 0 0 0.00000 0 7 5.00000 0.00000 100% - 0s 0 2 0.00000 0 7 5.00000 0.00000 100% - 0s H 48 21 4.0000000 0.00000 100% 2.8 0s H 53 20 3.0000000 0.00000 100% 2.9 0s * 66 13 9 2.0000000 0.00000 100% 3.4 0s Cutting planes: Cover: 47 Explored 84 nodes (529 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%