Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:56 2012 Optimize a model with 1 rows, 33 columns and 33 nonzeros Model has 60 quadratic objective terms Presolve time: 0.00s Presolved: 61 rows, 93 columns, 213 nonzeros Variable types: 0 continuous, 93 integer (93 binary) Found heuristic solution: objective 26.0000000 Root relaxation: objective 0.000000e+00, 76 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 25 26.00000 0.00000 100% - 0s H 0 0 25.0000000 0.00000 100% - 0s H 0 0 24.0000000 0.00000 100% - 0s 0 0 0.00000 0 44 24.00000 0.00000 100% - 0s 0 0 0.00000 0 18 24.00000 0.00000 100% - 0s H 0 0 18.0000000 0.00000 100% - 0s 0 0 0.00000 0 17 18.00000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s 0 0 0.00000 0 20 16.00000 0.00000 100% - 0s H 0 0 15.0000000 0.00000 100% - 0s H 0 0 13.0000000 0.00000 100% - 0s 0 0 0.00000 0 19 13.00000 0.00000 100% - 0s 0 0 0.00000 0 20 13.00000 0.00000 100% - 0s 0 0 0.00000 0 20 13.00000 0.00000 100% - 0s 0 2 0.00000 0 20 13.00000 0.00000 100% - 0s * 170 82 10 12.0000000 1.00000 91.7% 7.9 0s Cutting planes: Cover: 115 MIR: 7 Zero half: 4 Explored 313 nodes (4136 simplex iterations) in 0.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%