Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:36 2012 Optimize a model with 50 rows, 113 columns and 113 nonzeros Model has 98 quadratic constraints Presolve time: 0.57s Presolved: 50 rows, 113 columns, 113 nonzeros Variable types: 98 continuous, 15 integer (15 binary) Root relaxation: objective 0.000000e+00, 7 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 23.0000000 - - - 0s 0 0 0.00000 0 12 23.00000 0.00000 100% - 0s 0 0 0.36667 0 15 23.00000 0.36667 98.4% - 0s 0 2 0.44444 0 15 23.00000 0.44444 98.1% - 0s * 16 16 10 20.0000000 4.40972 78.0% 14.3 0s * 41 20 7 18.0000000 4.45000 75.3% 14.5 0s * 55 24 8 17.0000000 4.65972 72.6% 13.5 0s Cutting planes: Gomory: 2 Explored 131 nodes (1951 simplex iterations) in 0.62 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%