mxMinimumCycleRemover.prototype.execute=function(a){a=this.layout.getModel();for(var b={},c=a.vertexMapper.getValues(),d={},e=0;e<c.length;e++)d[c[e].id]=c[e];c=null;if(null!=a.roots){var f=a.roots;c=[];for(e=0;e<f.length;e++)c[e]=a.vertexMapper.get(f[e])}a.visit(function(g,k,l,m,n){k.isAncestor(g)&&(l.invert(),mxUtils.remove(l,g.connectsAsSource),g.connectsAsTarget.push(l),mxUtils.remove(l,k.connectsAsTarget),k.connectsAsSource.push(l));b[k.id]=k;delete d[k.id]},c,!0,null);e=mxUtils.clone(b,null,