Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:59:39 2012 Optimize a model with 249 rows, 720 columns and 720 nonzeros Model has 496 quadratic constraints Presolve removed 0 rows and 21 columns Presolve time: 2.90s Presolved: 249 rows, 699 columns, 699 nonzeros Variable types: 496 continuous, 203 integer (202 binary) Root relaxation: objective 0.000000e+00, 83 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 125.0000000 - - - 2s 0 0 0.00000 0 121 125.00000 0.00000 100% - 2s 0 0 0.00000 0 175 125.00000 0.00000 100% - 2s 0 0 0.00000 0 171 125.00000 0.00000 100% - 2s 0 2 0.00000 0 168 125.00000 0.00000 100% - 2s H 54 54 15.0000000 3.48602 76.8% 32.9 3s * 55 42 35 14.0000000 3.48602 75.1% 32.4 3s * 383 68 24 13.0000000 9.75018 25.0% 25.8 3s Cutting planes: Gomory: 2 Explored 529 nodes (14987 simplex iterations) in 3.51 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.300000000000e+01, best bound 1.300000000000e+01, gap 0.0%