Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:22:21 2012 Optimize a model with 1 rows, 133 columns and 133 nonzeros Model has 111 quadratic objective terms Presolve removed 0 rows and 24 columns Presolve time: 0.00s Presolved: 112 rows, 220 columns, 442 nonzeros Variable types: 0 continuous, 220 integer (219 binary) Found heuristic solution: objective 26.0000000 Root relaxation: objective 0.000000e+00, 144 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 34 26.00000 0.00000 100% - 0s 0 0 0.00000 0 19 26.00000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s 0 0 0.00000 0 21 17.00000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s H 0 0 8.0000000 0.00000 100% - 0s 0 0 0.00000 0 12 8.00000 0.00000 100% - 0s H 0 0 6.0000000 0.00000 100% - 0s 0 0 0.00000 0 15 6.00000 0.00000 100% - 0s 0 0 0.00000 0 15 6.00000 0.00000 100% - 0s 0 2 0.00000 0 15 6.00000 0.00000 100% - 0s H 195 77 5.0000000 0.00000 100% 5.6 0s H 243 39 3.0000000 0.00000 100% 6.1 0s Cutting planes: Cover: 203 Explored 398 nodes (6591 simplex iterations) in 0.12 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%