Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:23:51 2012 Optimize a model with 109 rows, 287 columns and 287 nonzeros Model has 216 quadratic constraints Presolve removed 0 rows and 2 columns Presolve time: 1.26s Presolved: 109 rows, 285 columns, 285 nonzeros Variable types: 216 continuous, 69 integer (68 binary) Root relaxation: objective 0.000000e+00, 35 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 54.0000000 - - - 1s 0 0 0.00000 0 45 54.00000 0.00000 100% - 1s 0 0 0.10303 0 60 54.00000 0.10303 100% - 1s 0 2 0.11448 0 60 54.00000 0.11448 100% - 1s H 27 27 44.0000000 1.61616 96.3% 32.9 1s H 38 38 22.0000000 1.61616 92.7% 26.4 1s * 41 41 25 21.0000000 1.61616 92.3% 25.1 1s H 91 57 17.0000000 2.72353 84.0% 23.4 1s H 122 69 16.0000000 3.02457 81.1% 23.3 1s H 187 90 15.0000000 4.97403 66.8% 23.1 1s * 1053 29 9 14.0000000 12.42400 11.3% 21.3 1s Cutting planes: Gomory: 1 Explored 1086 nodes (23469 simplex iterations) in 1.84 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%