Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:23:06 2012 Optimize a model with 128 rows, 324 columns and 324 nonzeros Model has 254 quadratic constraints Presolve time: 1.48s Presolved: 128 rows, 324 columns, 324 nonzeros Variable types: 254 continuous, 70 integer (70 binary) Root relaxation: objective 0.000000e+00, 35 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 67.0000000 - - - 1s 0 0 0.00000 0 56 67.00000 0.00000 100% - 1s 0 0 0.40385 0 70 67.00000 0.40385 99.4% - 1s 0 0 0.40385 0 70 67.00000 0.40385 99.4% - 1s 0 2 0.40385 0 70 67.00000 0.40385 99.4% - 1s * 36 36 24 24.0000000 3.68421 84.6% 23.9 1s H 67 50 23.0000000 3.76190 83.6% 25.6 1s * 735 184 29 22.0000000 16.00000 27.3% 25.4 2s * 744 171 34 21.0000000 16.00000 23.8% 25.2 2s Explored 2015 nodes (46145 simplex iterations) in 3.48 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.100000000000e+01, best bound 2.100000000000e+01, gap 0.0%