Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:45:52 2013 Optimize a model with 1050 rows, 25650 columns and 52000 nonzeros Presolve removed 100 rows and 100 columns Presolve time: 0.27s Presolved: 950 rows, 25550 columns, 51650 nonzeros Variable types: 25350 continuous, 200 integer (200 binary) Root relaxation: objective 2.252562e+05, 2848 iterations, 0.13 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 225294.777 0 2 238378.878 225294.777 5.49% - 0s H 0 0 227611.06234 225294.777 1.02% - 0s 0 0 225315.480 0 1 227611.062 225315.480 1.01% - 0s 0 0 225315.681 0 2 227611.062 225315.681 1.01% - 0s 0 0 225318.262 0 2 227611.062 225318.262 1.01% - 0s 0 0 225322.419 0 2 227611.062 225322.419 1.01% - 1s 0 0 225322.550 0 2 227611.062 225322.550 1.01% - 1s 0 0 225323.837 0 1 227611.062 225323.837 1.00% - 1s 0 0 225323.837 0 1 227611.062 225323.837 1.00% - 1s 0 0 225324.296 0 1 227611.062 225324.296 1.00% - 1s 0 0 225324.583 0 1 227611.062 225324.583 1.00% - 1s 0 0 225324.583 0 1 227611.062 225324.583 1.00% - 1s 0 2 225377.584 0 1 227611.062 225377.584 0.98% - 1s * 10 4 10 225915.15199 225707.966 0.09% 74.7 2s Cutting planes: Flow cover: 12 Explored 13 nodes (4432 simplex iterations) in 2.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.259151519913e+05, best bound 2.259151519913e+05, gap 0.0%