Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:57 2012 Optimize a model with 1 rows, 47 columns and 47 nonzeros Model has 46 quadratic objective terms Presolve removed 0 rows and 6 columns Presolve time: 0.00s Presolved: 47 rows, 87 columns, 179 nonzeros Variable types: 0 continuous, 87 integer (86 binary) Found heuristic solution: objective 18.0000000 Found heuristic solution: objective 9.0000000 Root relaxation: objective 0.000000e+00, 59 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 14 9.00000 0.00000 100% - 0s 0 0 0.00000 0 17 9.00000 0.00000 100% - 0s 0 0 0.00000 0 8 9.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 0 0.00000 0 10 7.00000 0.00000 100% - 0s 0 0 0.00000 0 9 7.00000 0.00000 100% - 0s H 0 0 6.0000000 0.00000 100% - 0s H 0 0 4.0000000 0.00000 100% - 0s 0 2 0.00000 0 5 4.00000 0.00000 100% - 0s * 187 32 8 3.0000000 0.00000 100% 6.1 0s Cutting planes: Gomory: 2 Cover: 82 MIR: 2 Zero half: 1 Explored 222 nodes (1999 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%