Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:33:58 2012 Optimize a model with 1 rows, 161 columns and 161 nonzeros Model has 130 quadratic objective terms Presolve removed 0 rows and 25 columns Presolve time: 0.00s Presolved: 131 rows, 266 columns, 526 nonzeros Variable types: 0 continuous, 266 integer (265 binary) Found heuristic solution: objective 33.0000000 Root relaxation: objective 0.000000e+00, 172 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 11 33.00000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s 0 0 0.00000 0 17 11.00000 0.00000 100% - 0s 0 0 0.00000 0 10 11.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 0 0.00000 0 6 7.00000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 0 0.00000 0 5 5.00000 0.00000 100% - 0s H 0 0 3.0000000 0.00000 100% - 0s 0 0 0.00000 0 3 3.00000 0.00000 100% - 0s 0 0 0.00000 0 4 3.00000 0.00000 100% - 0s 0 0 0.00000 0 3 3.00000 0.00000 100% - 0s 0 0 0.00000 0 3 3.00000 0.00000 100% - 0s 0 0 0.00000 0 3 3.00000 0.00000 100% - 0s 0 2 0.00000 0 3 3.00000 0.00000 100% - 0s * 148 28 17 2.0000000 0.00000 100% 3.4 0s * 298 9 7 1.0000000 0.00000 100% 7.6 0s Cutting planes: Cover: 182 Explored 299 nodes (2680 simplex iterations) in 0.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+00, best bound 1.000000000000e+00, gap 0.0%