Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:59 2012 Optimize a model with 1 rows, 39 columns and 39 nonzeros Model has 43 quadratic objective terms Presolve removed 0 rows and 3 columns Presolve time: 0.00s Presolved: 44 rows, 79 columns, 165 nonzeros Variable types: 0 continuous, 79 integer (78 binary) Found heuristic solution: objective 14.0000000 Root relaxation: objective 0.000000e+00, 59 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 14 14.00000 0.00000 100% - 0s 0 0 0.00000 0 18 14.00000 0.00000 100% - 0s 0 0 0.00000 0 10 14.00000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 0 0.00000 0 8 9.00000 0.00000 100% - 0s H 0 0 8.0000000 0.00000 100% - 0s 0 0 0.00000 0 9 8.00000 0.00000 100% - 0s 0 0 0.00000 0 9 8.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 2 0.00000 0 9 7.00000 0.00000 100% - 0s H 87 35 5.0000000 0.00000 100% 5.3 0s * 89 26 9 4.0000000 0.00000 100% 5.6 0s * 102 9 4 3.0000000 1.00000 66.7% 6.8 0s Cutting planes: Cover: 76 MIR: 1 Explored 113 nodes (1031 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%