ILOG CPLEX 11.0 User's Manual > Continuous Optimization > Solving LPs: Simplex Optimizers > Diagnosing LP Infeasibility > Finding a Conflict

If ILOG CPLEX reports that your problem is infeasible, then you can invoke tools of ILOG CPLEX to help you analyze the source of the infeasibility. These diagnostic tools compute a set of conflicting constraints and column bounds that would be feasible if one of them (a constraint or variable) were removed. Such a set is known as a conflict. For more about detecting conflicts, see Diagnosing Infeasibility by Refining Conflicts.