Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:04:58 2012 Optimize a model with 211 rows, 621 columns and 621 nonzeros Model has 420 quadratic constraints Presolve removed 0 rows and 17 columns Presolve time: 2.45s Presolved: 211 rows, 604 columns, 604 nonzeros Variable types: 420 continuous, 184 integer (183 binary) Root relaxation: objective 0.000000e+00, 75 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 100.0000000 - - - 2s 0 0 0.00000 0 2 100.00000 0.00000 100% - 2s 0 0 0.00000 0 11 100.00000 0.00000 100% - 2s 0 0 0.00000 0 5 100.00000 0.00000 100% - 2s 0 2 0.00000 0 5 100.00000 0.00000 100% - 2s H 35 35 17.0000000 0.39216 97.7% 56.4 2s * 35 31 28 15.0000000 0.39216 97.4% 58.0 2s * 99 75 28 14.0000000 1.03704 92.6% 33.9 2s * 140 94 33 13.0000000 1.15789 91.1% 30.7 2s * 565 144 10 12.0000000 5.30000 55.8% 22.9 2s * 989 139 32 11.0000000 6.00000 45.5% 33.5 4s 1138 103 cutoff 25 11.00000 6.39130 41.9% 37.1 5s Explored 1755 nodes (76462 simplex iterations) in 6.54 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0%