Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:39:58 2012 Optimize a model with 1 rows, 171 columns and 171 nonzeros Model has 158 quadratic objective terms Presolve removed 0 rows and 21 columns Presolve time: 0.00s Presolved: 159 rows, 308 columns, 624 nonzeros Variable types: 0 continuous, 308 integer (307 binary) Found heuristic solution: objective 41.0000000 Root relaxation: objective 0.000000e+00, 194 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 42 41.00000 0.00000 100% - 0s 0 0 0.00000 0 43 41.00000 0.00000 100% - 0s H 0 0 32.0000000 0.00000 100% - 0s 0 0 0.00000 0 30 32.00000 0.00000 100% - 0s H 0 0 22.0000000 0.00000 100% - 0s H 0 0 20.0000000 0.00000 100% - 0s 0 0 0.00000 0 29 20.00000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s 0 0 0.00000 0 20 16.00000 0.00000 100% - 0s H 0 0 14.0000000 0.00000 100% - 0s 0 0 0.00000 0 10 14.00000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 0 0.00000 0 12 10.00000 0.00000 100% - 0s 0 0 0.00000 0 12 10.00000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 2 0.00000 0 12 9.00000 0.00000 100% - 0s H 27 27 8.0000000 0.00000 100% 2.3 0s H 135 68 7.0000000 0.00000 100% 3.0 0s H 406 176 6.0000000 0.00000 100% 7.9 0s * 486 150 10 5.0000000 1.00000 80.0% 9.6 0s Cutting planes: Cover: 294 MIR: 2 Explored 655 nodes (16846 simplex iterations) in 0.32 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%