Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:55:17 2012 Optimize a model with 206 rows, 598 columns and 598 nonzeros Model has 410 quadratic constraints Presolve removed 0 rows and 26 columns Presolve time: 2.39s Presolved: 206 rows, 572 columns, 572 nonzeros Variable types: 410 continuous, 162 integer (161 binary) Root relaxation: objective 0.000000e+00, 73 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 90.0000000 - - - 2s 0 0 0.00000 0 78 90.00000 0.00000 100% - 2s 0 0 0.00000 0 120 90.00000 0.00000 100% - 2s 0 0 0.00000 0 120 90.00000 0.00000 100% - 2s 0 2 0.00000 0 120 90.00000 0.00000 100% - 2s H 32 32 18.0000000 2.10348 88.3% 27.8 2s H 51 46 17.0000000 2.10348 87.6% 22.1 2s H 109 49 16.0000000 3.72357 76.7% 17.5 2s * 135 61 27 15.0000000 3.72357 75.2% 17.1 2s * 175 68 16 13.0000000 4.33628 66.6% 18.4 2s H 266 67 12.0000000 5.13916 57.2% 19.1 2s Cutting planes: Gomory: 5 Explored 591 nodes (13599 simplex iterations) in 3.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.199999999896e+01, best bound 1.199999999896e+01, gap 0.0%