Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:08 2013 Optimize a model with 988 rows, 891 columns and 3510 nonzeros Presolve removed 9 rows and 0 columns Presolve time: 0.00s Presolved: 979 rows, 891 columns, 3501 nonzeros Variable types: 882 continuous, 9 integer (9 binary) Root relaxation: objective 1.788453e+04, 291 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 17884.5295 0 7 - 17884.5295 - - 0s H 0 0 18168.000000 17884.5295 1.56% - 0s 0 0 18146.0000 0 1 18168.0000 18146.0000 0.12% - 0s 0 0 18156.7119 0 1 18168.0000 18156.7119 0.06% - 0s 0 0 18163.7308 0 1 18168.0000 18163.7308 0.02% - 0s Cutting planes: Implied bound: 4 Explored 0 nodes (339 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.816800000000e+04, best bound 1.816800000000e+04, gap 0.0%