Gurobi 5.0.1 (linux64) logging started Sat Dec 8 04:03:57 2012 Optimize a model with 555 rows, 540 columns and 1776 nonzeros Presolve removed 10 rows and 10 columns Presolve time: 0.00s Explored 0 nodes (0 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Model is infeasible Best objective -, best bound -, gap -