Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:40:22 2013 Optimize a model with 52 rows, 158 columns and 924 nonzeros Presolve removed 22 rows and 33 columns Presolve time: 0.00s Presolved: 30 rows, 125 columns, 760 nonzeros Variable types: 113 continuous, 12 integer (12 binary) Root relaxation: objective 5.420106e+03, 12 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 5420.10604 0 3 - 5420.10604 - - 0s 0 0 5425.49722 0 4 - 5425.49722 - - 0s 0 0 5440.76059 0 3 - 5440.76059 - - 0s 0 0 5441.27072 0 3 - 5441.27072 - - 0s 0 0 5441.27072 0 3 - 5441.27072 - - 0s H 0 0 5441.6157041 5441.27072 0.01% - 0s Cutting planes: Flow cover: 2 Explored 0 nodes (43 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.441615704088e+03, best bound 5.441270718087e+03, gap 0.0063%