Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:00:46 2012 Optimize a model with 152 rows, 327 columns and 327 nonzeros Model has 302 quadratic constraints Presolve time: 1.75s Presolved: 152 rows, 327 columns, 327 nonzeros Variable types: 302 continuous, 25 integer (25 binary) Root relaxation: objective 0.000000e+00, 12 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 83.0000000 - - - 1s 0 0 0.00000 0 22 83.00000 0.00000 100% - 1s 0 0 0.52444 0 25 83.00000 0.52444 99.4% - 1s 0 2 0.53086 0 25 83.00000 0.53086 99.4% - 1s * 31 31 16 62.0000000 5.54106 91.1% 37.8 1s H 220 155 59.0000000 13.22222 77.6% 38.4 2s H 2352 665 57.0000000 29.70248 47.9% 28.9 4s 2860 734 42.55556 33 193 57.00000 34.26667 39.9% 27.9 5s H 3149 765 56.0000000 35.60000 36.4% 27.2 5s Explored 6890 nodes (160948 simplex iterations) in 9.29 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.600000000000e+01, best bound 5.600000000000e+01, gap 0.0%