$title test for NL code generation error GT00470 (NLCODE1,SEQ=64) scalar zero / 0 /; positive variables u,v,x,y; variable z; equation e; model m / e /; e.. z =e= zero*(-u*v) + x*y; solve m us nlp min z; abort$(m.solvestat <> %solveStat.normalCompletion%) 'something went wrong';