Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:35:08 2012 Optimize a model with 1 rows, 164 columns and 164 nonzeros Model has 133 quadratic objective terms Presolve removed 0 rows and 33 columns Presolve time: 0.00s Presolved: 134 rows, 264 columns, 530 nonzeros Variable types: 0 continuous, 264 integer (263 binary) Found heuristic solution: objective 32.0000000 Root relaxation: objective 0.000000e+00, 171 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 27 32.00000 0.00000 100% - 0s H 0 0 26.0000000 0.00000 100% - 0s 0 0 0.00000 0 23 26.00000 0.00000 100% - 0s 0 0 0.00000 0 20 26.00000 0.00000 100% - 0s H 0 0 13.0000000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 0 0.00000 0 20 9.00000 0.00000 100% - 0s 0 0 0.00000 0 30 9.00000 0.00000 100% - 0s 0 0 0.00000 0 30 9.00000 0.00000 100% - 0s H 0 0 8.0000000 0.00000 100% - 0s 0 2 0.00000 0 25 8.00000 0.00000 100% - 0s H 104 57 7.0000000 0.00000 100% 3.6 0s H 108 55 6.0000000 0.00000 100% 4.0 0s H 116 57 5.0000000 0.00000 100% 4.4 0s H 146 35 3.0000000 0.00000 100% 4.1 0s H 191 35 2.0000000 0.00000 100% 5.6 0s Cutting planes: Cover: 237 MIR: 1 Explored 317 nodes (5972 simplex iterations) in 0.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%