Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:40:50 2013 Optimize a model with 140 rows, 1530 columns and 3540 nonzeros Presolve removed 10 rows and 10 columns Presolve time: 0.00s Presolved: 130 rows, 1520 columns, 3030 nonzeros Variable types: 1520 continuous, 0 integer (0 binary) Root relaxation: objective 1.937272e+04, 101 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 19372.7157 0 2 - 19372.7157 - - 0s 0 2 19372.7157 0 2 - 19372.7157 - - 0s * 23 7 12 19515.691012 19513.0131 0.01% 4.1 0s * 24 2 12 19513.720614 19513.0131 0.00% 4.0 0s Explored 25 nodes (197 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.951372061361e+04, best bound 1.951301313846e+04, gap 0.0036%