Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:40:44 2012 Optimize a model with 1 rows, 172 columns and 172 nonzeros Model has 150 quadratic objective terms Presolve removed 0 rows and 30 columns Presolve time: 0.00s Presolved: 151 rows, 292 columns, 592 nonzeros Variable types: 0 continuous, 292 integer (291 binary) Found heuristic solution: objective 46.0000000 Root relaxation: objective 0.000000e+00, 185 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 40 46.00000 0.00000 100% - 0s H 0 0 38.0000000 0.00000 100% - 0s 0 0 0.00000 0 29 38.00000 0.00000 100% - 0s H 0 0 32.0000000 0.00000 100% - 0s 0 0 0.00000 0 37 32.00000 0.00000 100% - 0s H 0 0 24.0000000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s 0 0 0.00000 0 18 17.00000 0.00000 100% - 0s 0 0 0.00000 0 16 17.00000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s H 0 0 15.0000000 0.00000 100% - 0s 0 0 0.00000 0 18 15.00000 0.00000 100% - 0s 0 0 0.00000 0 18 15.00000 0.00000 100% - 0s H 0 0 13.0000000 0.00000 100% - 0s 0 2 0.00000 0 16 13.00000 0.00000 100% - 0s H 74 59 11.0000000 0.00000 100% 2.0 0s H 77 55 9.0000000 0.00000 100% 2.0 0s H 108 61 8.0000000 0.00000 100% 2.7 0s H 326 163 6.0000000 0.00000 100% 6.0 0s * 659 128 17 5.0000000 1.15556 76.9% 22.4 0s Cutting planes: Cover: 278 MIR: 3 Zero half: 3 Explored 798 nodes (25453 simplex iterations) in 0.45 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%