Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:19:02 2013 Optimize a model with 800 rows, 25300 columns and 50700 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 0.13s Presolved: 750 rows, 25250 columns, 50550 nonzeros Variable types: 25200 continuous, 50 integer (50 binary) Root relaxation: objective 2.252562e+05, 2553 iterations, 0.09 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 229476.15683 225256.157 1.84% - 0s 0 0 225293.835 0 1 229476.157 225293.835 1.82% - 0s 0 0 225295.695 0 1 229476.157 225295.695 1.82% - 0s 0 0 225316.480 0 1 229476.157 225316.480 1.81% - 0s 0 0 225316.480 0 1 229476.157 225316.480 1.81% - 0s 0 0 225319.722 0 1 229476.157 225319.722 1.81% - 0s 0 0 225320.907 0 2 229476.157 225320.907 1.81% - 0s 0 0 225323.512 0 1 229476.157 225323.512 1.81% - 0s 0 0 225323.512 0 1 229476.157 225323.512 1.81% - 0s 0 0 225324.064 0 1 229476.157 225324.064 1.81% - 0s 0 0 225324.370 0 1 229476.157 225324.370 1.81% - 0s 0 0 225324.386 0 2 229476.157 225324.386 1.81% - 0s 0 0 225324.542 0 2 229476.157 225324.542 1.81% - 0s 0 0 225324.928 0 1 229476.157 225324.928 1.81% - 1s 0 0 225324.978 0 1 229476.157 225324.978 1.81% - 1s 0 0 225325.101 0 1 229476.157 225325.101 1.81% - 1s 0 0 225325.199 0 1 229476.157 225325.199 1.81% - 1s 0 0 225325.363 0 1 229476.157 225325.363 1.81% - 1s 0 0 225325.393 0 1 229476.157 225325.393 1.81% - 1s 0 0 225325.396 0 1 229476.157 225325.396 1.81% - 1s 0 0 225325.401 0 1 229476.157 225325.401 1.81% - 1s 0 0 225325.401 0 1 229476.157 225325.401 1.81% - 1s 0 2 225325.666 0 1 229476.157 225325.666 1.81% - 1s * 10 4 10 225915.15199 225775.011 0.06% 82.3 1s Cutting planes: Flow cover: 20 Explored 13 nodes (4485 simplex iterations) in 2.02 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%