[gnugo-devel] crash from lots of strings

[Douglas Ridgway]

The following (fairly pathological) SGF causes a crash on load (eg gnugo 
-l, or doing a genmove after loadsgf in gtp). Tested on 3.4 and 3.5.7. The 
position has 275 strings, which is pretty close to the max on 19x19.

doug.

----

(;GM[1]FF[4]SZ[19]
AW[ca][ia][ka][ma][bb][db][fb][jb][lb][nb][pb][cc][ec][gc][ic][mc][oc]
[qc][sc][bd][fd][hd][jd][ld][pd][rd][ae][ce][ee][ie][ke][me][oe][se][bf]
[df][ff][hf][lf][nf][pf][rf][ag][eg][gg][ig][kg][og][qg][sg][bh][dh][hh]
[jh][lh][nh][rh][ai][ci][ei][gi][ki][mi][oi][qi][dj][fj][hj][jj][nj][pj]
[rj][ck][gk][ik][kk][mk][qk][bl][dl][fl][jl][ll][nl][pl][cm][em][gm][im]
[mm][om][qm][sm][bn][fn][hn][jn][ln][pn][rn][ao][co][eo][io][ko][mo][oo]
[so][bp][dp][fp][hp][lp][np][pp][rp][eq][gq][iq][kq][oq][qq][sq][br][dr]
[hr][jr][lr][nr][rr][as][cs][es][ks][ms][os]
AB[ba][da][fa][ha][na][pa][ra][ab][eb][gb][ib][kb][ob][qb][sb][bc][dc]
[hc][jc][lc][nc][rc][ad][cd][ed][gd][kd][md][od][qd][de][fe][he][je][ne]
[pe][re][cf][gf][if][kf][mf][qf][bg][dg][fg][jg][lg][ng][pg][ch][eh][gh]
[ih][mh][oh][qh][sh][bi][fi][hi][ji][li][pi][ri][aj][cj][ej][ij][kj][mj]
[oj][sj][bk][dk][fk][hk][lk][nk][pk][rk][al][el][gl][il][kl][ol][ql][sl]
[bm][dm][hm][jm][lm][nm][rm][an][cn][en][gn][kn][mn][on][qn][do][fo][ho]
[jo][no][po][ro][ap][cp][gp][ip][kp][mp][qp][bq][dq][fq][jq][lq][nq][pq]
[ar][cr][er][gr][ir][mr][or][qr][sr][fs][hs][js][ps][rs]
)