Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:34:15 2012 Optimize a model with 139 rows, 437 columns and 437 nonzeros Model has 276 quadratic constraints Presolve removed 0 rows and 20 columns Presolve time: 1.61s Presolved: 139 rows, 417 columns, 417 nonzeros Variable types: 276 continuous, 141 integer (140 binary) Root relaxation: objective 0.000000e+00, 51 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 74.0000000 - - - 1s 0 0 0.00000 0 35 74.00000 0.00000 100% - 1s 0 0 0.00000 0 18 74.00000 0.00000 100% - 1s 0 0 0.00000 0 68 74.00000 0.00000 100% - 1s 0 2 0.00000 0 68 74.00000 0.00000 100% - 1s H 34 27 5.0000000 0.28000 94.4% 22.7 1s * 71 12 7 3.0000000 0.34286 88.6% 16.7 1s H 81 6 2.0000000 0.37037 81.5% 15.4 1s Cutting planes: Explored 96 nodes (2870 simplex iterations) in 1.73 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%