Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:19:16 2012 Optimize a model with 111 rows, 281 columns and 281 nonzeros Model has 220 quadratic constraints Presolve time: 1.28s Presolved: 111 rows, 281 columns, 281 nonzeros Variable types: 220 continuous, 61 integer (61 binary) Root relaxation: objective 0.000000e+00, 30 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 55.0000000 - - - 1s 0 0 0.00000 0 47 55.00000 0.00000 100% - 1s 0 0 0.35586 0 61 55.00000 0.35586 99.4% - 1s 0 2 0.39463 0 61 55.00000 0.39463 99.3% - 1s * 24 23 16 18.0000000 2.17544 87.9% 34.4 1s * 397 76 15 17.0000000 11.11679 34.6% 22.8 1s Cutting planes: Gomory: 3 Explored 721 nodes (16136 simplex iterations) in 1.71 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%