Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:34:25 2012 Optimize a model with 1 rows, 162 columns and 162 nonzeros Model has 136 quadratic objective terms Presolve removed 0 rows and 33 columns Presolve time: 0.00s Presolved: 137 rows, 265 columns, 537 nonzeros Variable types: 0 continuous, 265 integer (264 binary) Found heuristic solution: objective 36.0000000 Root relaxation: objective 0.000000e+00, 179 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 33 36.00000 0.00000 100% - 0s H 0 0 31.0000000 0.00000 100% - 0s 0 0 0.00000 0 25 31.00000 0.00000 100% - 0s H 0 0 21.0000000 0.00000 100% - 0s 0 0 0.00000 0 14 21.00000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s 0 0 0.00000 0 31 11.00000 0.00000 100% - 0s 0 0 0.00000 0 18 11.00000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 0 0.00000 0 14 10.00000 0.00000 100% - 0s 0 0 0.00000 0 23 10.00000 0.00000 100% - 0s 0 0 0.00000 0 19 10.00000 0.00000 100% - 0s 0 0 0.00000 0 13 10.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 0 0.00000 0 14 7.00000 0.00000 100% - 0s 0 0 0.00000 0 13 7.00000 0.00000 100% - 0s 0 0 0.00000 0 12 7.00000 0.00000 100% - 0s 0 0 0.00000 0 12 7.00000 0.00000 100% - 0s 0 0 0.00000 0 9 7.00000 0.00000 100% - 0s H 0 0 6.0000000 0.00000 100% - 0s 0 2 0.00000 0 9 6.00000 0.00000 100% - 0s H 108 56 5.0000000 0.00000 100% 2.2 0s H 418 150 4.0000000 0.00000 100% 7.2 0s * 428 96 11 3.0000000 0.00000 100% 7.7 0s Cutting planes: Cover: 237 MIR: 2 Explored 558 nodes (12578 simplex iterations) in 0.23 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%