When was white winning?

Lev Aronian has won the 2017 Grenke Chess Classic, ahead of a very strong field. His win may have been helped by the fact I did not give him the 'kiss of death' by tipping a win for him, but it was more likely to be due to his strong play.
One of his early tournament victories was against Maxime Vachier-Lagrave in a game that on the one hand exemplifies modern chess, but on the other, one I found difficult to get a handle on. Following the 'pawn structure be damned' approach, both players found themselves with rooks and bishops after 14 moves, and one open file to fight over. To my untrained eye this wasn't enough for either side to claim an advantage, but after another 20 moves, Aronian was able to force one of his pawns to f5 and Black's position collapsed. At first I thought Black must have made one big mistake, but going over the game it seems that it was more a succession of little ones that caused his defeat, culminating with him losing control of f5.


Aronian,Levon (2774) - Vachier-Lagrave,Maxime (2803) [A04]
GRENKE Chess Classic Karlsruhe (3.2), 17.04.2017

1. Nf3 c5 2. c4 Nc6 3. Nc3 e5 4. e3 Nf6 5. d4 e4 6. d5 exf3 7. dxc6 dxc6 8. Qxd8+ Kxd8 9. gxf3 Kc7 10. b3 Be7 11. Bb2 Rd8 12. h4 g6 13. Ne4 Nxe4 14. fxe4 h5 15. Be5+ Bd6 16. Bf6 Re8 17. f3 a5 18. a4 Be7 19. Bc3 Be6 20. O-O-O b6 21. Be2 Red8 22. Rdg1 b5 23. Kc2 b4 24. Be5+ Kb7 25. Bf4 Rd7 26. e5 Bf8 27. Rd1 Rxd1 28. Rxd1 Bg7 29. Bd3 Rd8 30. Bg5 Rd7 31. f4 Bg4 32. Be2 Bf5+ 33. Kc1 Kc7 34. Bf3 Bf8 35. e4 Bh3 36. f5 gxf5 37. Bxh5 fxe4 38. Rxd7+ Kxd7 39. Bxf7 Bg7 40. e6+ Bxe6 41. Bxe6+ Kxe6 42. Kd2 1-0