Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:48 2012 Optimize a model with 1 rows, 46 columns and 46 nonzeros Model has 70 quadratic objective terms Presolve removed 0 rows and 2 columns Presolve time: 0.00s Presolved: 71 rows, 114 columns, 254 nonzeros Variable types: 0 continuous, 114 integer (113 binary) Found heuristic solution: objective 21.0000000 Root relaxation: objective 0.000000e+00, 89 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 19 21.00000 0.00000 100% - 0s H 0 0 19.0000000 0.00000 100% - 0s 0 0 0.00000 0 33 19.00000 0.00000 100% - 0s H 0 0 18.0000000 0.00000 100% - 0s 0 0 0.00000 0 11 18.00000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s 0 0 0.00000 0 19 11.00000 0.00000 100% - 0s 0 0 0.00000 0 19 11.00000 0.00000 100% - 0s 0 2 0.00000 0 19 11.00000 0.00000 100% - 0s * 382 43 8 10.0000000 6.20000 38.0% 13.4 0s Cutting planes: Cover: 134 MIR: 3 Zero half: 3 Explored 438 nodes (5967 simplex iterations) in 0.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%