Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:46:51 2012 Optimize a model with 98 rows, 240 columns and 240 nonzeros Model has 194 quadratic constraints Presolve time: 1.13s Presolved: 98 rows, 240 columns, 240 nonzeros Variable types: 194 continuous, 46 integer (46 binary) Root relaxation: objective 0.000000e+00, 23 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 39.0000000 - - - 1s 0 0 0.00000 0 3 39.00000 0.00000 100% - 1s 0 0 0.00000 0 38 39.00000 0.00000 100% - 1s 0 0 0.00000 0 38 39.00000 0.00000 100% - 1s 0 2 0.00000 0 38 39.00000 0.00000 100% - 1s * 26 26 15 23.0000000 5.07692 77.9% 32.3 1s H 45 37 20.0000000 5.09402 74.5% 26.6 1s * 47 37 14 19.0000000 5.09402 73.2% 26.7 1s * 106 52 12 18.0000000 9.50000 47.2% 23.4 1s Cutting planes: Explored 543 nodes (10561 simplex iterations) in 1.39 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.800000000000e+01, best bound 1.800000000000e+01, gap 0.0%