Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:21:36 2012 Optimize a model with 124 rows, 313 columns and 313 nonzeros Model has 246 quadratic constraints Presolve time: 1.43s Presolved: 124 rows, 313 columns, 313 nonzeros Variable types: 246 continuous, 67 integer (67 binary) Root relaxation: objective 0.000000e+00, 33 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 63.0000000 - - - 1s 0 0 0.00000 0 2 63.00000 0.00000 100% - 1s 0 0 0.00000 0 9 63.00000 0.00000 100% - 1s 0 0 0.00000 0 31 63.00000 0.00000 100% - 1s 0 2 0.00000 0 30 63.00000 0.00000 100% - 1s * 40 39 26 29.0000000 5.00000 82.8% 33.2 1s H 72 55 26.0000000 5.52941 78.7% 27.1 1s H 123 81 23.0000000 5.66667 75.4% 23.6 1s * 205 120 15 22.0000000 7.11429 67.7% 24.7 1s * 3426 177 58 21.0000000 18.32558 12.7% 19.2 4s Explored 3642 nodes (68544 simplex iterations) in 4.37 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%