Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:44:31 2013 Optimize a model with 950 rows, 25850 columns and 52050 nonzeros Presolve removed 100 rows and 150 columns Presolve time: 0.13s Presolved: 850 rows, 25700 columns, 51400 nonzeros Variable types: 25500 continuous, 200 integer (200 binary) Root relaxation: objective 2.252562e+05, 3904 iterations, 0.12 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 225256.157 0 1 - 225256.157 - - 0s H 0 0 238378.87772 225256.157 5.50% - 0s 0 0 225292.554 0 1 238378.878 225292.554 5.49% - 0s 0 0 225296.130 0 1 238378.878 225296.130 5.49% - 0s 0 0 225315.100 0 1 238378.878 225315.100 5.48% - 0s 0 0 225317.166 0 2 238378.878 225317.166 5.48% - 0s 0 0 225319.526 0 1 238378.878 225319.526 5.48% - 0s 0 0 225321.366 0 2 238378.878 225321.366 5.48% - 0s H 0 0 227611.06234 225321.366 1.01% - 0s 0 0 225322.103 0 1 227611.062 225322.103 1.01% - 0s 0 0 225323.750 0 1 227611.062 225323.750 1.00% - 0s 0 0 225324.182 0 1 227611.062 225324.182 1.00% - 0s 0 0 225324.663 0 2 227611.062 225324.663 1.00% - 0s 0 0 225324.663 0 2 227611.062 225324.663 1.00% - 0s 0 0 225324.663 0 2 227611.062 225324.663 1.00% - 1s 0 2 225348.248 0 2 227611.062 225348.248 0.99% - 1s * 10 4 10 225915.15199 225903.750 0.01% 62.7 1s Cutting planes: Flow cover: 13 Explored 11 nodes (4833 simplex iterations) in 1.40 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.259151519913e+05, best bound 2.259037502242e+05, gap 0.0050%