Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:41:03 2012 Optimize a model with 83 rows, 205 columns and 205 nonzeros Model has 164 quadratic constraints Presolve time: 0.96s Presolved: 83 rows, 205 columns, 205 nonzeros Variable types: 164 continuous, 41 integer (41 binary) Root relaxation: objective 0.000000e+00, 20 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 39.0000000 - - - 0s 0 0 0.00000 0 18 39.00000 0.00000 100% - 0s 0 0 0.00000 0 40 39.00000 0.00000 100% - 0s 0 0 0.00000 0 40 39.00000 0.00000 100% - 0s 0 2 0.00000 0 39 39.00000 0.00000 100% - 0s H 32 32 25.0000000 3.63636 85.5% 23.2 1s * 33 33 17 22.0000000 3.63636 83.5% 23.1 1s H 53 37 18.0000000 3.69565 79.5% 22.2 1s Cutting planes: Explored 460 nodes (8332 simplex iterations) in 1.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.800000000024e+01, best bound 1.800000000024e+01, gap 0.0%