Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:26:35 2012 Optimize a model with 1 rows, 150 columns and 150 nonzeros Model has 136 quadratic objective terms Presolve removed 0 rows and 22 columns Presolve time: 0.00s Presolved: 137 rows, 264 columns, 536 nonzeros Variable types: 0 continuous, 264 integer (263 binary) Found heuristic solution: objective 40.0000000 Root relaxation: objective 0.000000e+00, 174 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 32 40.00000 0.00000 100% - 0s H 0 0 28.0000000 0.00000 100% - 0s 0 0 0.00000 0 27 28.00000 0.00000 100% - 0s H 0 0 26.0000000 0.00000 100% - 0s 0 0 0.00000 0 22 26.00000 0.00000 100% - 0s H 0 0 19.0000000 0.00000 100% - 0s H 0 0 18.0000000 0.00000 100% - 0s 0 0 0.00000 0 48 18.00000 0.00000 100% - 0s 0 0 0.00000 0 25 18.00000 0.00000 100% - 0s 0 0 0.00000 0 26 18.00000 0.00000 100% - 0s 0 0 0.00000 0 26 18.00000 0.00000 100% - 0s 0 2 0.00000 0 26 18.00000 0.00000 100% - 0s H 81 42 12.0000000 0.00000 100% 1.9 0s H 108 64 9.0000000 0.00000 100% 1.9 0s H 135 59 8.0000000 0.00000 100% 2.1 0s H 162 62 6.0000000 0.00000 100% 2.2 0s H 297 99 5.0000000 0.00000 100% 5.0 0s Cutting planes: Cover: 248 MIR: 5 Zero half: 2 Explored 677 nodes (16099 simplex iterations) in 0.30 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%