Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:49 2012 Optimize a model with 1 rows, 38 columns and 38 nonzeros Model has 73 quadratic objective terms Presolve time: 0.00s Presolved: 74 rows, 111 columns, 257 nonzeros Variable types: 0 continuous, 111 integer (111 binary) Found heuristic solution: objective 33.0000000 Found heuristic solution: objective 29.0000000 Root relaxation: objective 0.000000e+00, 93 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 31 29.00000 0.00000 100% - 0s H 0 0 28.0000000 0.00000 100% - 0s 0 0 0.00000 0 46 28.00000 0.00000 100% - 0s H 0 0 26.0000000 0.00000 100% - 0s H 0 0 23.0000000 0.00000 100% - 0s 0 0 0.00000 0 26 23.00000 0.00000 100% - 0s H 0 0 19.0000000 0.00000 100% - 0s 0 0 0.00000 0 28 19.00000 0.00000 100% - 0s 0 0 0.00000 0 21 19.00000 0.00000 100% - 0s 0 0 0.00000 0 22 19.00000 0.00000 100% - 0s 0 0 0.00000 0 22 19.00000 0.00000 100% - 0s H 0 0 18.0000000 0.00000 100% - 0s 0 2 0.00000 0 22 18.00000 0.00000 100% - 0s H 182 78 15.0000000 1.00000 93.3% 9.0 0s * 213 69 10 14.0000000 2.00000 85.7% 12.2 0s Cutting planes: Cover: 140 MIR: 8 Zero half: 1 Explored 310 nodes (5724 simplex iterations) in 0.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%