Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:46:21 2013 Optimize a model with 28 rows, 246 columns and 688 nonzeros Presolve removed 22 rows and 23 columns Presolve time: 0.00s Presolved: 6 rows, 223 columns, 444 nonzeros Variable types: 223 continuous, 0 integer (0 binary) Root relaxation: objective 7.444602e+03, 6 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 7444.60178 0 1 - 7444.60178 - - 0s 0 2 7444.60178 0 1 - 7444.60178 - - 0s * 13 3 7 7459.1516945 7459.14830 0.00% 1.1 0s Explored 14 nodes (20 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.459151694455e+03, best bound 7.459148295576e+03, gap 0.0000%