PITTSBURGH (AP) – The Pirates clinched their 19th consecutive losing season, a record for a major league franchise in North America, losing to the Cardinals 3-2 as Yadier Molina hit a tiebreaking, two-run double.  A year after going a big league-worst 57-105, the Pirates were 51-44 and led the NL Central by a half-game before play on July 20.  But they have gone 16-38 since, and at 67-82 are ensured of  another sub.-500 record.  St. Louis, which has 13 games left, has won seven of eight and remained 4 1-2 games behind Atlanta in the NL wild-card race. The Cardinals moved 5 1-2 games back of Milwaukee in the NL Central.  Edwin Jackson (5-2) allowed two runs and eight hits in 7 1-3 innings and improved to 4-0 in his career against Pittsburgh. Three relievers combined to hold Pittsburgh scoreless over the final 2 1-3 innings. Jason Motte pitched a perfect ninth for his seventh save in 10 chances.  Morton (9-10) lost his fourth straight start, giving up three runs, six hits and three walks in seven innings.