Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:50:59 2013 Optimize a model with 1300 rows, 31800 columns and 95650 nonzeros Presolve removed 50 rows and 1450 columns Presolve time: 0.23s Presolved: 1250 rows, 30350 columns, 90650 nonzeros Variable types: 30050 continuous, 300 integer (300 binary) Root relaxation: objective 1.626233e+05, 2095 iterations, 0.10 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 162623.326 0 15 - 162623.326 - - 0s 0 0 162664.385 0 15 - 162664.385 - - 0s 0 0 162669.410 0 18 - 162669.410 - - 0s 0 0 162673.712 0 18 - 162673.712 - - 0s 0 0 162673.866 0 15 - 162673.866 - - 0s 0 0 162675.868 0 18 - 162675.868 - - 0s 0 0 162675.919 0 18 - 162675.919 - - 0s 0 0 162676.918 0 18 - 162676.918 - - 1s 0 0 162676.977 0 18 - 162676.977 - - 1s 0 0 162677.313 0 18 - 162677.313 - - 1s 0 0 162677.887 0 18 - 162677.887 - - 1s 0 0 162677.887 0 18 - 162677.887 - - 1s 0 0 162677.887 0 18 - 162677.887 - - 1s 0 0 162677.937 0 18 - 162677.937 - - 1s 0 0 162677.937 0 18 - 162677.937 - - 2s H 0 0 163963.49847 162677.937 0.78% - 2s 0 2 162679.764 0 12 163963.498 162679.764 0.78% - 2s H 27 22 163467.57376 162782.398 0.42% 17.1 3s H 162 73 163001.64791 162850.324 0.09% 10.8 4s H 216 43 162918.79635 162853.390 0.04% 8.7 4s 229 40 162913.701 15 3 162918.796 162857.123 0.04% 8.4 5s * 232 39 18 162918.06266 162857.123 0.04% 8.4 5s Cutting planes: Flow cover: 16 Explored 346 nodes (5969 simplex iterations) in 5.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.629180626645e+05, best bound 1.629039488704e+05, gap 0.0087%