Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:27 2012 Optimize a model with 1 rows, 29 columns and 29 nonzeros Model has 41 quadratic objective terms Presolve time: 0.00s Presolved: 42 rows, 70 columns, 152 nonzeros Variable types: 0 continuous, 70 integer (70 binary) Found heuristic solution: objective 16.0000000 Root relaxation: objective 0.000000e+00, 51 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 9 16.00000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 0 0.00000 0 9 9.00000 0.00000 100% - 0s 0 0 0.00000 0 10 9.00000 0.00000 100% - 0s 0 0 0.00000 0 10 9.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 2 0.00000 0 10 7.00000 0.00000 100% - 0s * 103 27 8 6.0000000 1.00000 83.3% 6.1 0s * 127 5 7 5.0000000 4.00000 20.0% 7.9 0s Cutting planes: Cover: 71 Explored 133 nodes (1178 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%