Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:51:00 2012 Optimize a model with 243 rows, 706 columns and 706 nonzeros Model has 484 quadratic constraints Presolve removed 0 rows and 24 columns Presolve time: 2.82s Presolved: 243 rows, 682 columns, 682 nonzeros Variable types: 484 continuous, 198 integer (197 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 0 118.0000000 - - - 2s 0 0 0.00000 0 3 118.00000 0.00000 100% - 2s 0 0 0.00000 0 2 118.00000 0.00000 100% - 2s 0 0 0.00000 0 124 118.00000 0.00000 100% - 2s 0 2 0.00000 0 124 118.00000 0.00000 100% - 2s * 30 30 21 17.0000000 1.94118 88.6% 50.3 3s * 63 50 26 15.0000000 2.02857 86.5% 38.1 3s * 198 120 17 14.0000000 3.86188 72.4% 24.3 3s * 695 261 27 12.0000000 6.82051 43.2% 30.7 4s 752 262 10.95238 19 395 12.00000 6.82051 43.2% 33.9 5s Explored 1141 nodes (46528 simplex iterations) in 6.11 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%