Optimize a model with 120 rows, 7140 columns and 14280 nonzeros Presolve time: 0.01s Presolved: 120 rows, 7140 columns, 14280 nonzeros Variable types: 0 continuous, 7140 integer (7140 binary) Root relaxation: objective 6.662500e+03, 185 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 6662.50000 0 6 - 6662.50000 - - 0s 0 0 6666.50000 0 12 - 6666.50000 - - 0s 0 0 6669.00000 0 15 - 6669.00000 - - 0s 0 0 6676.25000 0 16 - 6676.25000 - - 0s 0 0 6677.00000 0 20 - 6677.00000 - - 0s 0 0 6678.75000 0 25 - 6678.75000 - - 0s 0 0 6679.00000 0 20 - 6679.00000 - - 0s 0 0 6682.25000 0 14 - 6682.25000 - - 0s 0 0 6683.12500 0 26 - 6683.12500 - - 0s 0 0 6686.50000 0 12 - 6686.50000 - - 0s 0 0 6687.33333 0 21 - 6687.33333 - - 0s 0 0 6689.91667 0 32 - 6689.91667 - - 0s 0 0 6690.37500 0 35 - 6690.37500 - - 0s 0 0 6690.87500 0 17 - 6690.87500 - - 0s 0 0 6691.16667 0 34 - 6691.16667 - - 0s 0 0 6691.16667 0 34 - 6691.16667 - - 0s 0 2 6691.56667 0 34 - 6691.56667 - - 0s * 156 156 112 7352.0000000 6818.00000 7.26% 5.7 0s * 702 600 53 7135.0000000 6931.20000 2.86% 5.3 4s 784 633 7007.66667 17 29 7135.00000 6931.76768 2.85% 5.7 5s H 811 618 6951.0000000 6939.29860 0.17% 5.6 5s * 814 588 20 6942.0000000 6942.00000 0.0% 6.2 5s Cutting planes: Gomory: 8 Cover: 2 Zero half: 11 Explored 815 nodes (5350 simplex iterations) in 5.95 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.942000000000e+03, best bound 6.942000000000e+03, gap 0.0% Gurobi 5.0.1 (linux64) logging started Sun Nov 25 02:43:52 2012