Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:38:56 2013 Optimize a model with 340 rows, 21600 columns and 262210 nonzeros Presolve removed 10 rows and 490 columns Presolve time: 0.84s Presolved: 330 rows, 21110 columns, 242210 nonzeros Variable types: 21010 continuous, 100 integer (100 binary) Root relaxation: objective 1.937272e+04, 164 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 19372.7157 0 16 - 19372.7157 - - 1s 0 0 19372.8209 0 16 - 19372.8209 - - 1s 0 0 19444.5516 0 14 - 19444.5516 - - 1s 0 0 19444.5516 0 14 - 19444.5516 - - 1s H 0 0 19881.674753 19444.5516 2.20% - 4s H 0 0 19515.381248 19444.5516 0.36% - 5s 0 1 19444.5516 0 14 19515.3812 19444.5516 0.36% - 5s * 24 8 20 19514.313190 19507.9371 0.03% 10.7 5s Cutting planes: Flow cover: 1 Explored 29 nodes (950 simplex iterations) in 5.26 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.951431319002e+04, best bound 1.951265491816e+04, gap 0.0085%