Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:25 2012 Optimize a model with 1 rows, 43 columns and 43 nonzeros Model has 52 quadratic objective terms Presolve removed 0 rows and 1 columns Presolve time: 0.00s Presolved: 53 rows, 94 columns, 198 nonzeros Variable types: 0 continuous, 94 integer (93 binary) Found heuristic solution: objective 18.0000000 Root relaxation: objective 0.000000e+00, 71 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 22 18.00000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s H 0 0 14.0000000 0.00000 100% - 0s 0 0 0.00000 0 18 14.00000 0.00000 100% - 0s 0 0 0.00000 0 24 14.00000 0.00000 100% - 0s 0 0 0.00000 0 8 14.00000 0.00000 100% - 0s H 0 0 8.0000000 0.00000 100% - 0s H 0 0 6.0000000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 2 0.00000 0 6 5.00000 0.00000 100% - 0s Cutting planes: Cover: 97 Explored 155 nodes (2002 simplex iterations) in 0.03 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%