Class: Cbc::ConflictSolver

Inherits:
Object
  • Object
show all
Defined in:
lib/ruby-cbc/conflict_solver.rb

Instance Method Summary collapse

Constructor Details

#initialize(model) ⇒ ConflictSolver 



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# File 'lib/ruby-cbc/conflict_solver.rb', line 5

def initialize(model)
 @model = model
end

Instance Method Details

#find_conflict ⇒ Object

Assuming there is a conflict



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# File 'lib/ruby-cbc/conflict_solver.rb', line 10

def find_conflict
  conflict_set = []
  all_constraints = @model.constraints.to_a
  loop do
    m = Model.new
    m.vars = @model.vars
    m.enforce(conflict_set)
    return conflict_set if infeasible?(m)

    constraint = first_failing(conflict_set, all_constraints)
    return conflict_set if !constraint

    conflict_set << constraint
  end
end