Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:23:40 2012 Optimize a model with 1 rows, 139 columns and 139 nonzeros Model has 104 quadratic objective terms Presolve removed 0 rows and 26 columns Presolve time: 0.00s Presolved: 105 rows, 217 columns, 425 nonzeros Variable types: 0 continuous, 217 integer (216 binary) Found heuristic solution: objective 28.0000000 Root relaxation: objective 0.000000e+00, 130 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 26 28.00000 0.00000 100% - 0s H 0 0 24.0000000 0.00000 100% - 0s 0 0 0.00000 0 17 24.00000 0.00000 100% - 0s H 0 0 14.0000000 0.00000 100% - 0s H 0 0 13.0000000 0.00000 100% - 0s 0 0 0.00000 0 16 13.00000 0.00000 100% - 0s 0 0 0.00000 0 13 13.00000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s H 0 0 8.0000000 0.00000 100% - 0s 0 0 0.00000 0 28 8.00000 0.00000 100% - 0s 0 0 0.00000 0 15 8.00000 0.00000 100% - 0s H 0 0 6.0000000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 0 0.00000 0 9 5.00000 0.00000 100% - 0s H 0 0 3.0000000 0.00000 100% - 0s 0 0 0.00000 0 7 3.00000 0.00000 100% - 0s 0 0 0.00000 0 11 3.00000 0.00000 100% - 0s 0 0 0.00000 0 11 3.00000 0.00000 100% - 0s H 0 0 2.0000000 0.00000 100% - 0s 0 2 0.00000 0 11 2.00000 0.00000 100% - 0s Cutting planes: Cover: 175 MIR: 2 Zero half: 2 Explored 464 nodes (5467 simplex iterations) in 0.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%