Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:33:12 2012 Optimize a model with 1 rows, 159 columns and 159 nonzeros Model has 129 quadratic objective terms Presolve removed 0 rows and 28 columns Presolve time: 0.00s Presolved: 130 rows, 260 columns, 518 nonzeros Variable types: 0 continuous, 260 integer (259 binary) Found heuristic solution: objective 43.0000000 Root relaxation: objective 0.000000e+00, 166 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 34 43.00000 0.00000 100% - 0s H 0 0 33.0000000 0.00000 100% - 0s 0 0 0.00000 0 25 33.00000 0.00000 100% - 0s H 0 0 27.0000000 0.00000 100% - 0s 0 0 0.00000 0 23 27.00000 0.00000 100% - 0s H 0 0 18.0000000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s 0 0 0.00000 0 25 12.00000 0.00000 100% - 0s 0 0 0.00000 0 14 12.00000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 0 0.00000 0 19 9.00000 0.00000 100% - 0s 0 0 0.00000 0 19 9.00000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 2 0.00000 0 19 5.00000 0.00000 100% - 0s H 42 15 3.0000000 0.00000 100% 2.8 0s * 48 12 11 2.0000000 0.00000 100% 2.7 0s Cutting planes: Cover: 218 MIR: 2 Explored 370 nodes (5919 simplex iterations) in 0.12 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%