Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:59 2012 Optimize a model with 1 rows, 39 columns and 39 nonzeros Model has 39 quadratic objective terms Presolve removed 0 rows and 3 columns Presolve time: 0.00s Presolved: 40 rows, 75 columns, 153 nonzeros Variable types: 0 continuous, 75 integer (74 binary) Found heuristic solution: objective 18.0000000 Found heuristic solution: objective 11.0000000 Root relaxation: objective 0.000000e+00, 55 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 11.00000 0.00000 100% - 0s 0 0 0.00000 0 10 11.00000 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 10 7.00000 0.00000 100% - 0s H 0 0 6.0000000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 2 0.00000 0 6 5.00000 0.00000 100% - 0s * 48 22 10 4.0000000 0.00000 100% 4.3 0s * 60 19 9 3.0000000 0.00000 100% 4.6 0s * 74 10 9 2.0000000 0.00000 100% 5.8 0s Cutting planes: Gomory: 1 Cover: 63 Explored 92 nodes (767 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%