Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:37 2012 Optimize a model with 44 rows, 101 columns and 101 nonzeros Model has 86 quadratic constraints Presolve time: 0.50s Presolved: 44 rows, 101 columns, 101 nonzeros Variable types: 86 continuous, 15 integer (15 binary) Root relaxation: objective 0.000000e+00, 7 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 20.0000000 - - - 0s 0 0 0.00000 0 12 20.00000 0.00000 100% - 0s 0 0 0.44000 0 15 20.00000 0.44000 97.8% - 0s 0 0 0.44000 0 15 20.00000 0.44000 97.8% - 0s 0 2 0.72000 0 15 20.00000 0.72000 96.4% - 0s * 16 16 9 17.0000000 5.10648 70.0% 16.4 0s * 18 14 10 16.0000000 5.10648 68.1% 14.9 0s * 72 18 5 15.0000000 11.28571 24.8% 11.9 0s Cutting planes: Gomory: 1 Explored 103 nodes (1164 simplex iterations) in 0.53 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.500000000000e+01, best bound 1.500000000000e+01, gap 0.0%