Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:01:33 2013 Optimize a model with 902 rows, 67322 columns and 134562 nonzeros Presolve time: 0.10s Presolved: 902 rows, 67322 columns, 134562 nonzeros Variable types: 67240 continuous, 82 integer (82 binary) Root relaxation: objective 1.013658e+05, 2596 iterations, 0.09 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 101365.804 0 9 - 101365.804 - - 0s H 0 0 105937.00000 101365.804 4.32% - 0s H 0 0 102237.00000 101365.804 0.85% - 0s 0 0 101481.002 0 5 102237.000 101481.002 0.74% - 0s 0 0 101503.351 0 5 102237.000 101503.351 0.72% - 0s 0 0 101503.710 0 4 102237.000 101503.710 0.72% - 0s 0 0 101503.710 0 9 102237.000 101503.710 0.72% - 1s 0 0 101503.710 0 5 102237.000 101503.710 0.72% - 1s 0 0 101503.710 0 4 102237.000 101503.710 0.72% - 1s 0 0 101503.710 0 4 102237.000 101503.710 0.72% - 1s 0 0 101503.710 0 4 102237.000 101503.710 0.72% - 1s 0 0 101503.710 0 4 102237.000 101503.710 0.72% - 1s H 0 0 102028.00000 101503.710 0.51% - 1s 0 2 101506.021 0 4 102028.000 101506.021 0.51% - 1s H 3 3 102004.20291 101553.049 0.44% 39.3 2s H 4 4 101949.31429 101554.484 0.39% 40.2 2s H 5 3 101618.24242 101556.000 0.06% 35.8 2s * 18 1 8 101594.00000 101594.000 0.0% 23.1 2s Cutting planes: Implied bound: 83 Flow cover: 5 Explored 19 nodes (5542 simplex iterations) in 2.29 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.015940000000e+05, best bound 1.015940000000e+05, gap 0.0%