Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:40:31 2013 Optimize a model with 130 rows, 545 columns and 2610 nonzeros Presolve removed 5 rows and 5 columns Presolve time: 0.00s Presolved: 125 rows, 540 columns, 2355 nonzeros Variable types: 510 continuous, 30 integer (30 binary) Root relaxation: objective 1.291780e+04, 40 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 12917.7960 0 3 - 12917.7960 - - 0s 0 0 12918.6669 0 4 - 12918.6669 - - 0s 0 0 12964.1444 0 3 - 12964.1444 - - 0s 0 0 12965.2907 0 3 - 12965.2907 - - 0s 0 0 12965.2907 0 3 - 12965.2907 - - 0s 0 2 12965.3412 0 3 - 12965.3412 - - 0s * 9 5 8 13008.673728 12965.3755 0.33% 6.2 0s * 13 2 3 12965.575811 12965.5727 0.00% 4.8 0s Cutting planes: Flow cover: 1 Explored 14 nodes (210 simplex iterations) in 0.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.296557581144e+04, best bound 1.296557272232e+04, gap 0.0000%