Gurobi 5.0.1 (linux64) logging started Sun Nov 18 04:04:51 2012 Optimize a model with 159 rows, 400 columns and 400 nonzeros Model has 316 quadratic constraints Presolve time: 1.84s Presolved: 159 rows, 400 columns, 400 nonzeros Variable types: 316 continuous, 84 integer (84 binary) Root relaxation: objective 0.000000e+00, 42 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 75.0000000 - - - 1s 0 0 0.00000 0 69 75.00000 0.00000 100% - 1s 0 0 0.38683 0 81 75.00000 0.38683 99.5% - 1s H 0 0 71.0000000 0.38683 99.5% - 1s 0 2 0.40180 0 81 71.00000 0.40180 99.4% - 1s H 44 44 34.0000000 2.42754 92.9% 29.5 1s * 46 45 27 33.0000000 2.42754 92.6% 31.6 1s * 53 45 29 32.0000000 2.42754 92.4% 28.9 1s H 134 78 26.0000000 4.24731 83.7% 27.4 2s 2227 595 24.53226 34 228 26.00000 15.40000 40.8% 27.9 5s 7845 760 24.96296 39 195 26.00000 21.89855 15.8% 20.4 10s Explored 10130 nodes (195942 simplex iterations) in 11.78 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.600000000011e+01, best bound 2.600000000011e+01, gap 0.0%