Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:39:45 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 1.006454e+05, 2705 iterations, 0.11 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 100645.412 0 7 - 100645.412 - - 0s H 0 0 105152.00000 100645.412 4.29% - 0s H 0 0 101558.00000 100645.412 0.90% - 0s 0 0 100899.253 0 4 101558.000 100899.253 0.65% - 0s 0 0 100919.187 0 4 101558.000 100919.187 0.63% - 0s 0 0 100927.028 0 4 101558.000 100927.028 0.62% - 0s 0 0 100927.028 0 4 101558.000 100927.028 0.62% - 1s 0 0 100927.028 0 4 101558.000 100927.028 0.62% - 1s 0 0 100927.028 0 7 101558.000 100927.028 0.62% - 1s 0 0 100927.028 0 4 101558.000 100927.028 0.62% - 1s 0 0 100927.028 0 4 101558.000 100927.028 0.62% - 1s 0 0 100927.028 0 4 101558.000 100927.028 0.62% - 2s 0 0 100927.028 0 4 101558.000 100927.028 0.62% - 2s 0 0 100927.028 0 4 101558.000 100927.028 0.62% - 2s 0 2 100933.434 0 4 101558.000 100933.434 0.61% - 2s H 3 3 101532.26316 100951.133 0.57% 27.3 2s H 4 4 101225.00000 100971.010 0.25% 42.0 2s H 7 6 101113.00000 100973.579 0.14% 55.0 2s * 13 8 11 101079.00000 100973.579 0.10% 42.5 2s * 24 0 7 101058.00000 101058.000 0.0% 44.9 3s Cutting planes: Implied bound: 91 Flow cover: 11 Explored 25 nodes (7109 simplex iterations) in 3.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.010580000000e+05, best bound 1.010580000000e+05, gap 0.0%