Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:56:28 2012 Optimize a model with 117 rows, 280 columns and 280 nonzeros Model has 232 quadratic constraints Presolve time: 1.35s Presolved: 117 rows, 280 columns, 280 nonzeros Variable types: 232 continuous, 48 integer (48 binary) Root relaxation: objective 0.000000e+00, 24 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 68.0000000 - - - 1s 0 0 0.00000 0 27 68.00000 0.00000 100% - 1s 0 0 0.06386 0 42 68.00000 0.06386 100% - 1s 0 2 0.08264 0 42 68.00000 0.08264 100% - 1s * 24 24 15 28.0000000 2.66667 90.5% 38.5 1s * 74 55 14 26.0000000 4.54054 82.5% 31.0 1s * 1202 185 42 23.0000000 17.00000 26.1% 29.3 2s Explored 1486 nodes (39912 simplex iterations) in 2.89 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.300000000000e+01, best bound 2.300000000000e+01, gap 0.0%