Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:40 2012 Optimize a model with 1 rows, 45 columns and 45 nonzeros Model has 46 quadratic objective terms Presolve removed 0 rows and 5 columns Presolve time: 0.00s Presolved: 47 rows, 86 columns, 178 nonzeros Variable types: 0 continuous, 86 integer (85 binary) Found heuristic solution: objective 12.0000000 Root relaxation: objective 0.000000e+00, 60 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 12 12.00000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 0 0.00000 0 17 10.00000 0.00000 100% - 0s 0 0 0.00000 0 11 10.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 0 0.00000 0 11 7.00000 0.00000 100% - 0s 0 0 0.00000 0 8 7.00000 0.00000 100% - 0s H 0 0 6.0000000 0.00000 100% - 0s 0 2 0.00000 0 8 6.00000 0.00000 100% - 0s * 101 35 9 4.0000000 0.00000 100% 3.2 0s Cutting planes: Cover: 84 MIR: 3 Zero half: 1 Explored 182 nodes (1342 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%