Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:28:45 2012 Optimize a model with 123 rows, 319 columns and 319 nonzeros Model has 244 quadratic constraints Presolve time: 1.42s Presolved: 123 rows, 319 columns, 319 nonzeros Variable types: 244 continuous, 75 integer (75 binary) Root relaxation: objective 0.000000e+00, 37 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 59.0000000 - - - 1s 0 0 0.00000 0 56 59.00000 0.00000 100% - 1s 0 0 0.39910 0 65 59.00000 0.39910 99.3% - 1s 0 2 0.65441 0 65 59.00000 0.65441 98.9% - 1s * 28 28 20 22.0000000 3.41176 84.5% 20.8 1s H 59 50 21.0000000 3.87805 81.5% 20.2 1s * 61 49 22 20.0000000 3.87805 80.6% 19.9 1s * 138 95 17 19.0000000 4.89683 74.2% 20.8 1s * 262 115 10 18.0000000 7.23760 59.8% 21.3 1s * 346 123 14 17.0000000 8.55882 49.7% 22.0 1s * 1352 2 14 16.0000000 15.96296 0.23% 20.0 2s Cutting planes: Gomory: 2 Explored 1355 nodes (27736 simplex iterations) in 2.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.600000000000e+01, best bound 1.600000000000e+01, gap 0.0%