Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:33:13 2012 Optimize a model with 1 rows, 159 columns and 159 nonzeros Model has 128 quadratic objective terms Presolve removed 0 rows and 24 columns Presolve time: 0.00s Presolved: 129 rows, 263 columns, 519 nonzeros Variable types: 0 continuous, 263 integer (262 binary) Found heuristic solution: objective 35.0000000 Root relaxation: objective 0.000000e+00, 168 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 35 35.00000 0.00000 100% - 0s 0 0 0.00000 0 25 35.00000 0.00000 100% - 0s H 0 0 26.0000000 0.00000 100% - 0s 0 0 0.00000 0 23 26.00000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 0 0.00000 0 23 10.00000 0.00000 100% - 0s H 0 0 8.0000000 0.00000 100% - 0s 0 0 0.00000 0 5 8.00000 0.00000 100% - 0s H 0 0 4.0000000 0.00000 100% - 0s 0 0 0.00000 0 6 4.00000 0.00000 100% - 0s 0 0 0.00000 0 5 4.00000 0.00000 100% - 0s 0 0 0.00000 0 5 4.00000 0.00000 100% - 0s 0 0 0.00000 0 7 4.00000 0.00000 100% - 0s 0 0 0.00000 0 7 4.00000 0.00000 100% - 0s 0 2 0.00000 0 7 4.00000 0.00000 100% - 0s H 54 16 3.0000000 0.00000 100% 1.9 0s H 274 34 2.0000000 0.00000 100% 5.6 0s H 410 8 1.0000000 0.00000 100% 8.0 0s Cutting planes: Cover: 201 MIR: 1 Explored 411 nodes (3724 simplex iterations) in 0.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+00, best bound 1.000000000000e+00, gap 0.0%