Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:11:50 2012 Optimize a model with 99 rows, 248 columns and 248 nonzeros Model has 196 quadratic constraints Presolve removed 0 rows and 1 columns Presolve time: 1.14s Presolved: 99 rows, 247 columns, 247 nonzeros Variable types: 196 continuous, 51 integer (50 binary) Root relaxation: objective 0.000000e+00, 26 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 50.0000000 - - - 1s 0 0 0.00000 0 22 50.00000 0.00000 100% - 1s 0 0 0.00000 0 22 50.00000 0.00000 100% - 1s 0 0 0.00000 0 48 50.00000 0.00000 100% - 1s 0 2 0.00000 0 48 50.00000 0.00000 100% - 1s H 8 8 49.0000000 4.00000 91.8% 48.1 1s * 34 32 19 24.0000000 4.00000 83.3% 28.8 1s H 49 34 18.0000000 4.19565 76.7% 26.4 1s * 278 60 12 17.0000000 8.50000 50.0% 24.6 1s Cutting planes: Explored 621 nodes (15118 simplex iterations) in 1.48 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%