Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:53:17 2012 Optimize a model with 198 rows, 578 columns and 578 nonzeros Model has 394 quadratic constraints Presolve removed 0 rows and 26 columns Presolve time: 2.30s Presolved: 198 rows, 552 columns, 552 nonzeros Variable types: 394 continuous, 158 integer (157 binary) Root relaxation: objective 0.000000e+00, 71 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 96.0000000 - - - 2s 0 0 0.00000 0 21 96.00000 0.00000 100% - 2s 0 0 0.00000 0 77 96.00000 0.00000 100% - 2s 0 0 0.00000 0 74 96.00000 0.00000 100% - 2s 0 2 0.00000 0 74 96.00000 0.00000 100% - 2s H 27 27 28.0000000 2.09402 92.5% 38.7 2s * 33 33 26 20.0000000 2.09402 89.5% 33.6 2s H 120 87 19.0000000 3.39614 82.1% 17.7 2s * 135 51 12 15.0000000 3.62000 75.9% 17.4 2s * 198 72 16 14.0000000 4.78144 65.8% 17.7 2s * 773 210 33 13.0000000 8.51724 34.5% 27.0 4s Explored 1009 nodes (30340 simplex iterations) in 4.41 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.300000000000e+01, best bound 1.300000000000e+01, gap 0.0%