Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:35:54 2012 Optimize a model with 1 rows, 166 columns and 166 nonzeros Model has 139 quadratic objective terms Presolve removed 0 rows and 32 columns Presolve time: 0.00s Presolved: 140 rows, 273 columns, 551 nonzeros Variable types: 0 continuous, 273 integer (272 binary) Found heuristic solution: objective 35.0000000 Root relaxation: objective 0.000000e+00, 166 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 41 35.00000 0.00000 100% - 0s 0 0 0.00000 0 28 35.00000 0.00000 100% - 0s H 0 0 24.0000000 0.00000 100% - 0s H 0 0 21.0000000 0.00000 100% - 0s 0 0 0.00000 0 24 21.00000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s H 0 0 14.0000000 0.00000 100% - 0s 0 0 0.00000 0 41 14.00000 0.00000 100% - 0s 0 0 0.00000 0 20 14.00000 0.00000 100% - 0s 0 0 0.00000 0 14 14.00000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s 0 0 0.00000 0 20 11.00000 0.00000 100% - 0s 0 0 0.00000 0 20 11.00000 0.00000 100% - 0s 0 0 0.00000 0 20 11.00000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 2 0.00000 0 20 10.00000 0.00000 100% - 0s H 324 158 8.0000000 0.00000 100% 6.2 0s H 405 110 6.0000000 0.00000 100% 7.4 0s H 432 95 5.0000000 0.00000 100% 8.5 0s * 484 68 17 4.0000000 0.00000 100% 9.2 0s * 499 38 12 3.0000000 1.00000 66.7% 9.6 0s Cutting planes: Cover: 219 MIR: 1 Zero half: 1 Explored 547 nodes (8769 simplex iterations) in 0.19 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%