Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:14:39 2012 Optimize a model with 126 rows, 300 columns and 300 nonzeros Model has 250 quadratic constraints Presolve removed 0 rows and 1 columns Presolve time: 1.46s Presolved: 126 rows, 299 columns, 299 nonzeros Variable types: 250 continuous, 49 integer (48 binary) Root relaxation: objective 0.000000e+00, 24 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 61.0000000 - - - 1s 0 0 0.00000 0 21 61.00000 0.00000 100% - 1s 0 0 0.00000 0 28 61.00000 0.00000 100% - 1s 0 0 0.00000 0 28 61.00000 0.00000 100% - 1s 0 2 0.00000 0 28 61.00000 0.00000 100% - 1s * 25 25 18 36.0000000 3.53846 90.2% 34.4 1s * 26 24 18 34.0000000 3.53846 89.6% 33.6 1s H 72 50 32.0000000 8.00000 75.0% 30.9 1s * 72 50 14 31.0000000 8.00000 74.2% 31.1 1s * 95 56 13 29.0000000 8.00000 72.4% 31.3 1s * 323 62 12 27.0000000 17.94737 33.5% 30.1 1s * 337 58 7 26.0000000 18.00000 30.8% 30.2 1s Cutting planes: Gomory: 1 Explored 509 nodes (14872 simplex iterations) in 1.85 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.600000000000e+01, best bound 2.600000000000e+01, gap 0.0%