Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:39:31 2013 Optimize a model with 880 rows, 64080 columns and 128080 nonzeros Presolve time: 0.10s Presolved: 880 rows, 64080 columns, 128080 nonzeros Variable types: 64000 continuous, 80 integer (80 binary) Root relaxation: objective 9.701745e+04, 2331 iterations, 0.08 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 97017.4513 0 9 - 97017.4513 - - 0s H 0 0 105158.00000 97017.4513 7.74% - 0s H 0 0 99507.000000 97017.4513 2.50% - 0s 0 0 97345.7571 0 3 99507.0000 97345.7571 2.17% - 0s 0 0 97358.7043 0 3 99507.0000 97358.7043 2.16% - 0s 0 0 97364.1766 0 6 99507.0000 97364.1766 2.15% - 0s 0 0 97365.6642 0 3 99507.0000 97365.6642 2.15% - 0s 0 0 97365.7312 0 3 99507.0000 97365.7312 2.15% - 1s 0 0 97368.2364 0 3 99507.0000 97368.2364 2.15% - 1s 0 0 97368.2364 0 3 99507.0000 97368.2364 2.15% - 1s 0 0 97369.7015 0 3 99507.0000 97369.7015 2.15% - 1s 0 0 97370.0641 0 3 99507.0000 97370.0641 2.15% - 1s 0 0 97370.0641 0 3 99507.0000 97370.0641 2.15% - 1s H 0 0 97728.000000 97370.0641 0.37% - 1s 0 0 97370.0641 0 9 97728.0000 97370.0641 0.37% - 2s 0 0 97370.0641 0 3 97728.0000 97370.0641 0.37% - 2s 0 0 97370.0641 0 4 97728.0000 97370.0641 0.37% - 2s 0 0 97370.0641 0 3 97728.0000 97370.0641 0.37% - 2s 0 0 97370.0641 0 6 97728.0000 97370.0641 0.37% - 2s 0 0 97370.0641 0 3 97728.0000 97370.0641 0.37% - 2s 0 0 97370.0641 0 3 97728.0000 97370.0641 0.37% - 2s 0 0 97370.0641 0 3 97728.0000 97370.0641 0.37% - 2s 0 0 97370.0641 0 3 97728.0000 97370.0641 0.37% - 2s 0 0 97370.0641 0 3 97728.0000 97370.0641 0.37% - 2s 0 2 97375.3949 0 3 97728.0000 97375.3949 0.36% - 3s * 20 7 7 97673.000000 97474.4163 0.20% 71.4 3s Cutting planes: Implied bound: 108 Flow cover: 7 Explored 29 nodes (6704 simplex iterations) in 3.92 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.767300000000e+04, best bound 9.767300000000e+04, gap 0.0%