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 44 quadratic objective terms Presolve time: 0.00s Presolved: 45 rows, 73 columns, 161 nonzeros Variable types: 0 continuous, 73 integer (73 binary) Found heuristic solution: objective 15.0000000 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 10 15.00000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 0 0.00000 0 11 10.00000 0.00000 100% - 0s 0 0 0.00000 0 14 10.00000 0.00000 100% - 0s 0 0 0.00000 0 14 10.00000 0.00000 100% - 0s 0 2 0.00000 0 14 10.00000 0.00000 100% - 0s H 91 59 9.0000000 0.00000 100% 4.1 0s * 95 56 15 8.0000000 0.00000 100% 4.2 0s H 124 36 6.0000000 1.00000 83.3% 5.3 0s * 125 33 6 5.0000000 1.00000 80.0% 5.4 0s Cutting planes: Cover: 80 Explored 161 nodes (1188 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%