Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:03:25 2012 Optimize a model with 260 rows, 743 columns and 743 nonzeros Model has 518 quadratic constraints Presolve removed 0 rows and 17 columns Presolve time: 3.02s Presolved: 260 rows, 726 columns, 726 nonzeros Variable types: 518 continuous, 208 integer (207 binary) Root relaxation: objective 0.000000e+00, 83 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 127.0000000 - - - 3s 0 0 0.00000 0 20 127.00000 0.00000 100% - 3s 0 0 0.00000 0 145 127.00000 0.00000 100% - 3s 0 0 0.00000 0 119 127.00000 0.00000 100% - 3s 0 2 0.00000 0 119 127.00000 0.00000 100% - 3s H 54 54 22.0000000 2.76923 87.4% 35.2 3s * 57 42 37 18.0000000 2.76923 84.6% 34.4 3s H 206 121 17.0000000 4.18987 75.4% 21.4 3s H 420 184 16.0000000 5.53448 65.4% 19.8 3s * 420 162 24 15.0000000 5.53448 63.1% 19.8 3s 539 205 cutoff 23 15.00000 6.33266 57.8% 26.9 5s * 1264 63 32 14.0000000 11.75182 16.1% 32.3 6s Explored 1310 nodes (43786 simplex iterations) in 6.74 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%