Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:01:01 2013 Optimize a model with 1200 rows, 26400 columns and 57950 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 0.08s Presolved: 1150 rows, 26350 columns, 56900 nonzeros Variable types: 26100 continuous, 250 integer (250 binary) Root relaxation: objective 1.824192e+05, 2226 iterations, 0.07 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 182419.206 0 3 - 182419.206 - - 0s H 0 0 199449.94651 182419.206 8.54% - 0s 0 0 182445.503 0 6 199449.947 182445.503 8.53% - 0s 0 0 182454.745 0 6 199449.947 182454.745 8.52% - 0s 0 0 182461.881 0 6 199449.947 182461.881 8.52% - 0s 0 0 182462.697 0 6 199449.947 182462.697 8.52% - 0s 0 0 182465.543 0 6 199449.947 182465.543 8.52% - 0s 0 0 182465.543 0 8 199449.947 182465.543 8.52% - 0s 0 0 182466.843 0 8 199449.947 182466.843 8.51% - 0s 0 0 182467.505 0 8 199449.947 182467.505 8.51% - 0s 0 0 182467.522 0 8 199449.947 182467.522 8.51% - 0s 0 0 182467.833 0 8 199449.947 182467.833 8.51% - 0s 0 0 182468.005 0 8 199449.947 182468.005 8.51% - 0s 0 0 182468.543 0 8 199449.947 182468.543 8.51% - 0s 0 0 182468.599 0 8 199449.947 182468.599 8.51% - 0s 0 0 182468.599 0 8 199449.947 182468.599 8.51% - 1s 0 2 182469.742 0 8 199449.947 182469.742 8.51% - 1s H 27 19 185224.15904 182701.496 1.36% 36.1 2s * 43 23 41 184563.66324 182701.496 1.01% 26.4 2s H 54 4 182909.98052 182701.496 0.11% 23.6 2s * 61 6 18 182898.85941 182701.496 0.11% 22.7 2s * 64 4 20 182888.57255 182701.496 0.10% 21.8 2s Cutting planes: Flow cover: 10 Explored 70 nodes (4652 simplex iterations) in 2.61 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.828885725524e+05, best bound 1.828706472957e+05, gap 0.0098%