Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:32 2012 Optimize a model with 1 rows, 44 columns and 44 nonzeros Model has 42 quadratic objective terms Presolve removed 0 rows and 4 columns Presolve time: 0.00s Presolved: 43 rows, 82 columns, 166 nonzeros Variable types: 0 continuous, 82 integer (81 binary) Found heuristic solution: objective 11.0000000 Root relaxation: objective 0.000000e+00, 49 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 11.00000 0.00000 100% - 0s 0 0 0.00000 0 6 11.00000 0.00000 100% - 0s H 0 0 6.0000000 0.00000 100% - 0s 0 0 0.00000 0 16 6.00000 0.00000 100% - 0s 0 0 0.00000 0 16 6.00000 0.00000 100% - 0s 0 2 0.00000 0 6 6.00000 0.00000 100% - 0s H 54 23 4.0000000 0.00000 100% 4.7 0s H 109 24 3.0000000 0.00000 100% 5.5 0s Cutting planes: Cover: 72 Explored 150 nodes (1108 simplex iterations) in 0.02 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%