Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:44:19 2012 Optimize a model with 1 rows, 45 columns and 45 nonzeros Model has 89 quadratic objective terms Presolve time: 0.00s Presolved: 90 rows, 134 columns, 312 nonzeros Variable types: 0 continuous, 134 integer (134 binary) Found heuristic solution: objective 39.0000000 Root relaxation: objective 0.000000e+00, 114 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 39.00000 0.00000 100% - 0s H 0 0 31.0000000 0.00000 100% - 0s 0 0 0.00000 0 37 31.00000 0.00000 100% - 0s 0 0 0.00000 0 27 31.00000 0.00000 100% - 0s H 0 0 27.0000000 0.00000 100% - 0s H 0 0 26.0000000 0.00000 100% - 0s H 0 0 24.0000000 0.00000 100% - 0s 0 0 0.00000 0 24 24.00000 0.00000 100% - 0s 0 0 0.00000 0 23 24.00000 0.00000 100% - 0s H 0 0 23.0000000 0.00000 100% - 0s 0 0 0.00000 0 33 23.00000 0.00000 100% - 0s 0 0 0.00000 0 36 23.00000 0.00000 100% - 0s 0 0 0.00000 0 33 23.00000 0.00000 100% - 0s 0 2 0.00000 0 33 23.00000 0.00000 100% - 0s H 128 95 20.0000000 0.00000 100% 6.7 0s H 202 111 18.0000000 0.00000 100% 9.6 0s * 228 102 13 17.0000000 0.00000 100% 9.8 0s Cutting planes: Gomory: 2 Cover: 172 MIR: 1 Zero half: 1 Explored 522 nodes (9942 simplex iterations) in 0.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%