Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:58:35 2012 Optimize a model with 206 rows, 603 columns and 603 nonzeros Model has 410 quadratic constraints Presolve removed 0 rows and 21 columns Presolve time: 2.47s Presolved: 206 rows, 582 columns, 582 nonzeros Variable types: 410 continuous, 172 integer (171 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 89.0000000 - - - 2s 0 0 0.00000 0 2 89.00000 0.00000 100% - 2s 0 0 0.00000 0 18 89.00000 0.00000 100% - 2s 0 0 0.00000 0 3 89.00000 0.00000 100% - 2s 0 2 0.00000 0 2 89.00000 0.00000 100% - 2s H 38 38 26.0000000 0.00000 100% 28.8 2s * 64 64 42 25.0000000 0.00000 100% 21.7 2s * 70 62 45 24.0000000 0.00000 100% 20.8 2s H 108 76 20.0000000 0.00000 100% 19.6 2s * 114 74 36 19.0000000 0.00000 100% 19.1 2s * 136 86 17 16.0000000 1.27119 92.1% 21.7 2s H 164 78 14.0000000 1.65000 88.2% 20.7 2s H 300 110 13.0000000 4.00000 69.2% 19.6 2s * 523 140 17 12.0000000 5.00000 58.3% 19.3 2s 1516 108 11.05882 28 317 12.00000 10.09211 15.9% 24.0 5s Explored 1705 nodes (40185 simplex iterations) in 5.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%