Sorry about the delay here. Yes, the issue is resolved, thanks!

No problem, just drop a reply once fixed, happy to provide my code if you can't replicate.

Getting the following when attempting to run on full test data. Solution works fine for sample tests.

main.rb:438:in `block (2 levels) in refSol_solver': uninitialized constant Wrapper::This::SWARM (NameError)
	from /usr/local/lib/ruby/2.5.0/set.rb:338:in `each_key'
	from /usr/local/lib/ruby/2.5.0/set.rb:338:in `each'
	from main.rb:437:in `block in refSol_solver'
	from main.rb:430:in `step'
	from main.rb:430:in `each'
	from main.rb:430:in `refSol_solver'
	from main.rb:395:in `getter'
	from main.rb:481:in `block in closure'
	from main.rb:476:in `each'
	from main.rb:476:in `closure'
	from main.rb:494:in `block in <main>'
	from /runner/frameworks/ruby/cw-2.rb:55:in `block in describe'
	from /runner/frameworks/ruby/cw-2.rb:46:in `measure'
	from /runner/frameworks/ruby/cw-2.rb:51:in `describe'
	from /runner/frameworks/ruby/cw-2.rb:202:in `describe'
	from main.rb:464:in `<main>'