Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:19:59 2012 Optimize a model with 119 rows, 299 columns and 299 nonzeros Model has 236 quadratic constraints Presolve removed 0 rows and 1 columns Presolve time: 1.38s Presolved: 119 rows, 298 columns, 298 nonzeros Variable types: 236 continuous, 62 integer (61 binary) Root relaxation: objective 0.000000e+00, 31 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 62.0000000 - - - 1s 0 0 0.00000 0 32 62.00000 0.00000 100% - 1s 0 0 0.00000 0 58 62.00000 0.00000 100% - 1s 0 0 0.00000 0 56 62.00000 0.00000 100% - 1s 0 2 0.00000 0 56 62.00000 0.00000 100% - 1s H 32 32 30.0000000 3.52941 88.2% 28.0 1s * 37 35 21 22.0000000 3.52941 84.0% 26.3 1s * 88 58 13 20.0000000 4.28628 78.6% 27.2 1s * 535 107 12 19.0000000 12.73537 33.0% 22.3 1s Cutting planes: Gomory: 2 Explored 977 nodes (20587 simplex iterations) in 1.92 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.900000000000e+01, best bound 1.900000000000e+01, gap 0.0%