Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:45:02 2012 Optimize a model with 113 rows, 269 columns and 269 nonzeros Model has 224 quadratic constraints Presolve time: 1.31s Presolved: 113 rows, 269 columns, 269 nonzeros Variable types: 224 continuous, 45 integer (45 binary) Root relaxation: objective 0.000000e+00, 22 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 61.0000000 - - - 1s 0 0 0.00000 0 15 61.00000 0.00000 100% - 1s 0 0 0.00000 0 24 61.00000 0.00000 100% - 1s 0 0 0.00000 0 24 61.00000 0.00000 100% - 1s 0 2 0.00000 0 24 61.00000 0.00000 100% - 1s * 37 37 23 38.0000000 3.82609 89.9% 21.8 1s * 43 37 26 37.0000000 3.82609 89.7% 19.5 1s H 59 39 30.0000000 5.70000 81.0% 19.9 1s H 143 84 27.0000000 8.46154 68.7% 20.7 1s * 1158 206 32 26.0000000 16.66667 35.9% 25.6 2s * 1695 80 41 25.0000000 20.69565 17.2% 23.2 3s Explored 1817 nodes (41539 simplex iterations) in 3.31 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.500000000000e+01, best bound 2.500000000000e+01, gap 0.0%