Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:27:49 2012 Optimize a model with 1 rows, 154 columns and 154 nonzeros Model has 128 quadratic objective terms Presolve removed 0 rows and 23 columns Presolve time: 0.00s Presolved: 129 rows, 259 columns, 515 nonzeros Variable types: 0 continuous, 259 integer (258 binary) Found heuristic solution: objective 34.0000000 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 36 34.00000 0.00000 100% - 0s 0 0 0.00000 0 25 34.00000 0.00000 100% - 0s H 0 0 22.0000000 0.00000 100% - 0s H 0 0 21.0000000 0.00000 100% - 0s 0 0 0.00000 0 35 21.00000 0.00000 100% - 0s H 0 0 15.0000000 0.00000 100% - 0s H 0 0 13.0000000 0.00000 100% - 0s 0 0 0.00000 0 16 13.00000 0.00000 100% - 0s 0 0 0.00000 0 10 13.00000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 0 0.00000 0 12 10.00000 0.00000 100% - 0s H 0 0 8.0000000 0.00000 100% - 0s 0 0 0.00000 0 10 8.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 0 0.00000 0 10 7.00000 0.00000 100% - 0s 0 0 0.00000 0 10 7.00000 0.00000 100% - 0s 0 2 0.00000 0 9 7.00000 0.00000 100% - 0s H 271 85 5.0000000 0.00000 100% 4.8 0s * 283 67 10 4.0000000 0.00000 100% 5.4 0s H 354 60 3.0000000 0.00000 100% 6.3 0s Cutting planes: Cover: 220 MIR: 4 Zero half: 2 Explored 458 nodes (7422 simplex iterations) in 0.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%