Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:29:16 2012 Optimize a model with 1 rows, 158 columns and 158 nonzeros Model has 131 quadratic objective terms Presolve removed 0 rows and 32 columns Presolve time: 0.00s Presolved: 132 rows, 257 columns, 519 nonzeros Variable types: 0 continuous, 257 integer (256 binary) Found heuristic solution: objective 38.0000000 Root relaxation: objective 0.000000e+00, 164 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 35 38.00000 0.00000 100% - 0s H 0 0 35.0000000 0.00000 100% - 0s 0 0 0.00000 0 31 35.00000 0.00000 100% - 0s H 0 0 33.0000000 0.00000 100% - 0s 0 0 0.00000 0 25 33.00000 0.00000 100% - 0s H 0 0 21.0000000 0.00000 100% - 0s 0 0 0.00000 0 32 21.00000 0.00000 100% - 0s H 0 0 14.0000000 0.00000 100% - 0s 0 0 0.00000 0 16 14.00000 0.00000 100% - 0s 0 0 0.00000 0 16 14.00000 0.00000 100% - 0s 0 0 0.00000 0 15 14.00000 0.00000 100% - 0s 0 0 0.00000 0 17 14.00000 0.00000 100% - 0s 0 0 0.00000 0 17 14.00000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 2 0.00000 0 17 10.00000 0.00000 100% - 0s H 135 71 7.0000000 0.00000 100% 2.7 0s H 463 151 5.0000000 0.00000 100% 8.7 0s Cutting planes: Cover: 245 MIR: 4 Zero half: 1 Explored 760 nodes (18556 simplex iterations) in 0.34 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%