Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:15:00 2012 Optimize a model with 214 rows, 636 columns and 636 nonzeros Model has 426 quadratic constraints Presolve removed 0 rows and 30 columns Presolve time: 2.48s Presolved: 214 rows, 606 columns, 606 nonzeros Variable types: 426 continuous, 180 integer (179 binary) Root relaxation: objective 0.000000e+00, 75 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 110.0000000 - - - 2s 0 0 0.00000 0 2 110.00000 0.00000 100% - 2s 0 0 0.00000 0 2 110.00000 0.00000 100% - 2s 0 0 0.00000 0 112 110.00000 0.00000 100% - 2s 0 2 0.00000 0 107 110.00000 0.00000 100% - 2s * 29 29 24 12.0000000 1.62162 86.5% 44.2 2s 707 179 7.61111 15 568 12.00000 7.61111 36.6% 18.7 5s Explored 3452 nodes (89868 simplex iterations) in 9.51 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%