Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:00:35 2013 Optimize a model with 1200 rows, 26400 columns and 57950 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 0.09s Presolved: 1150 rows, 26350 columns, 56900 nonzeros Variable types: 26100 continuous, 250 integer (250 binary) Root relaxation: objective 2.252562e+05, 2680 iterations, 0.10 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 225256.157 0 3 - 225256.157 - - 0s 0 0 225292.554 0 3 - 225292.554 - - 0s 0 0 225297.469 0 3 - 225297.469 - - 0s 0 0 225312.893 0 6 - 225312.893 - - 0s 0 0 225313.206 0 6 - 225313.206 - - 0s 0 0 225313.206 0 6 - 225313.206 - - 0s 0 0 225313.568 0 6 - 225313.568 - - 0s 0 0 225315.117 0 6 - 225315.117 - - 0s 0 0 225315.117 0 6 - 225315.117 - - 0s 0 0 225317.543 0 6 - 225317.543 - - 0s 0 0 225317.692 0 6 - 225317.692 - - 0s 0 0 225318.403 0 6 - 225318.403 - - 0s 0 0 225318.906 0 6 - 225318.906 - - 0s 0 0 225318.948 0 3 - 225318.948 - - 1s 0 0 225319.079 0 6 - 225319.079 - - 1s 0 0 225319.134 0 6 - 225319.134 - - 1s 0 0 225319.173 0 6 - 225319.173 - - 1s 0 0 225319.173 0 6 - 225319.173 - - 1s H 0 0 227952.66891 225319.173 1.16% - 1s 0 2 225319.173 0 6 227952.669 225319.173 1.16% - 1s * 10 3 10 225915.15199 225840.416 0.03% 85.5 2s Cutting planes: Flow cover: 14 Explored 13 nodes (5365 simplex iterations) in 2.22 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%