Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:00:37 2013 Optimize a model with 462 rows, 17682 columns and 35322 nonzeros Presolve time: 0.02s Presolved: 462 rows, 17682 columns, 35322 nonzeros Variable types: 17640 continuous, 42 integer (42 binary) Root relaxation: objective 4.570764e+04, 766 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 45707.6426 0 8 - 45707.6426 - - 0s H 0 0 47005.000000 45707.6426 2.76% - 0s H 0 0 46177.000000 45707.6426 1.02% - 0s 0 0 45940.0671 0 5 46177.0000 45940.0671 0.51% - 0s 0 0 45965.3016 0 3 46177.0000 45965.3016 0.46% - 0s 0 0 45968.2169 0 3 46177.0000 45968.2169 0.45% - 0s 0 0 45982.3793 0 2 46177.0000 45982.3793 0.42% - 0s 0 0 45985.3103 0 2 46177.0000 45985.3103 0.42% - 0s 0 0 45987.0690 0 2 46177.0000 45987.0690 0.41% - 0s 0 0 45987.0690 0 2 46177.0000 45987.0690 0.41% - 0s 0 0 46007.1111 0 2 46177.0000 46007.1111 0.37% - 0s 0 0 46007.1111 0 2 46177.0000 46007.1111 0.37% - 0s H 0 0 46057.000000 46007.1111 0.11% - 0s 0 0 46007.1111 0 6 46057.0000 46007.1111 0.11% - 0s 0 0 46007.1111 0 4 46057.0000 46007.1111 0.11% - 0s 0 0 46007.1111 0 2 46057.0000 46007.1111 0.11% - 0s 0 0 46007.1111 0 3 46057.0000 46007.1111 0.11% - 0s 0 0 46007.1111 0 2 46057.0000 46007.1111 0.11% - 0s 0 0 46019.7059 0 3 46057.0000 46019.7059 0.08% - 0s 0 0 46047.8339 0 2 46057.0000 46047.8339 0.02% - 0s 0 0 46050.6116 0 2 46057.0000 46050.6116 0.01% - 0s Cutting planes: Implied bound: 34 Flow cover: 2 Explored 0 nodes (1694 simplex iterations) in 0.50 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.605700000000e+04, best bound 4.605700000000e+04, gap 0.0%