Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:55:05 2012 Optimize a model with 119 rows, 258 columns and 258 nonzeros Model has 236 quadratic constraints Presolve time: 1.37s Presolved: 119 rows, 258 columns, 258 nonzeros Variable types: 236 continuous, 22 integer (22 binary) Root relaxation: objective 0.000000e+00, 11 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 56.0000000 - - - 1s 0 0 0.00000 0 19 56.00000 0.00000 100% - 1s 0 0 0.44444 0 22 56.00000 0.44444 99.2% - 1s 0 0 0.44444 0 22 56.00000 0.44444 99.2% - 1s 0 2 0.44444 0 22 56.00000 0.44444 99.2% - 1s * 27 27 15 48.0000000 4.71429 90.2% 34.1 1s * 199 96 13 47.0000000 13.93333 70.4% 24.8 1s * 3580 174 42 45.0000000 39.83333 11.5% 19.5 3s Explored 3811 nodes (72657 simplex iterations) in 3.87 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.500000000000e+01, best bound 4.500000000000e+01, gap 0.0%