Gurobi 5.0.1 (linux64) logging started Wed Apr 24 11:43:41 2013 Optimize a model with 1540 rows, 196140 columns and 392140 nonzeros Presolve time: 0.46s Presolved: 1540 rows, 196140 columns, 392140 nonzeros Variable types: 196000 continuous, 140 integer (140 binary) Root relaxation: objective 2.687333e+05, 7079 iterations, 0.48 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 268733.260 0 7 - 268733.260 - - 1s H 0 0 293383.00000 268733.260 8.40% - 1s H 0 0 270354.00000 268733.260 0.60% - 2s 0 0 268892.473 0 4 270354.000 268892.473 0.54% - 2s 0 0 268892.473 0 7 270354.000 268892.473 0.54% - 3s 0 0 268892.473 0 4 270354.000 268892.473 0.54% - 4s 0 0 268937.934 0 3 270354.000 268937.934 0.52% - 4s 0 0 268942.066 0 3 270354.000 268942.066 0.52% - 5s 0 0 268944.996 0 3 270354.000 268944.996 0.52% - 5s 0 0 268944.996 0 3 270354.000 268944.996 0.52% - 5s 0 0 268944.996 0 3 270354.000 268944.996 0.52% - 5s 0 0 268944.996 0 3 270354.000 268944.996 0.52% - 6s 0 0 268944.996 0 3 270354.000 268944.996 0.52% - 6s H 0 0 270011.00000 268944.996 0.39% - 6s 0 2 268953.032 0 3 270011.000 268953.032 0.39% - 7s H 8 8 269971.00000 269009.500 0.36% 78.9 8s H 10 10 269690.00000 269009.500 0.25% 75.6 8s H 11 10 269650.00000 269009.500 0.24% 73.8 8s H 22 15 269542.00000 269009.500 0.20% 47.2 9s * 24 14 23 269498.00000 269009.500 0.18% 45.0 9s * 37 20 15 269440.00000 269040.441 0.15% 46.3 9s 39 20 269166.756 1 4 269440.000 269085.601 0.13% 53.0 10s H 90 17 269394.00000 269206.954 0.07% 70.9 12s * 91 15 11 269366.00000 269209.641 0.06% 71.3 13s H 113 12 269357.00000 269230.286 0.05% 67.8 14s * 118 4 12 269271.00000 269246.354 0.01% 68.0 14s Cutting planes: Implied bound: 169 Flow cover: 4 Explored 119 nodes (21948 simplex iterations) in 14.26 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.692710000000e+05, best bound 2.692463544304e+05, gap 0.0092%