blanchet [Mon, 31 May 2010 18:49:32 +0200] rev 37254
move SAT solver warning from every invocation of SAT solver to the tool, Refute, that uses it;
"size_change" rarely needs anything beyond "dpll", so this warning is annoying at best, and when "size_change" is called from Nitpick the warning confuses users, who then think that Nitpick is using "dpll" when it's really using MiniSat or some other fast solver