[gnugo-devel] gnugo 3.8 bug (ASSERT failed) report

[Marco Bottai]

As requested through a failed ASSERT I am sending You data concerning a bug in 
GnuGo 3.8
the binary actually used was compiled with gcc version 7.1.1 20170528 (GCC)
under Manjaro 17.0 [all on Intel(R) Celeron(R) D CPU 3.46GHz 3 GBytes RAM]

actual failed assert printout follows down here

Greetings

Marco Bottai



***assertion failure:
influence.c:941 - (color == WHITE && q->territory_value[pos] >= 0.0) || (color 
== BLACK && q->territory_value[pos] <= 0.0) near P19***

B:N19  (variation 314081)
   A B C D E F G H J K L M N O P Q R S T
19 . . . . . . . . . . . . X . . . . O . 19
18 . . X X O . . . . . X X O . . X O . . 18
17 . . . O X X . . . . X O O O X X O X . 17
16 . X . O . . . . . X . X . O O X . X . 16
15 . . . . . . . . . . . . X X X O O O . 15
14 . O . O . . . . . . . . X O O . O X . 14
13 . . . . . . . . . . . O O . . O . X . 13
12 . . . . . . . . . . . . . . . . X . . 12
11 . . . . . . . . . . . . . . . . . . . 11     WHITE (O) has captured 1 stones
10 . . . + . . . . . + . . . . . + . . . 10     BLACK (X) has captured 0 stones
 9 . . O . . . . . . . . . . . . . O . . 9
 8 . . . . . . . . . . . . . . . . . . . 8
 7 . . . . . . . . . . . . . . . . . . . 7
 6 . . O . . . . . . . . . . . X . O . . 6
 5 . . . . . . . . . . . . . . X O . . . 5
 4 . . . O . . . X . X . . . . X O X O . 4
 3 . . O . . X . . . . . . . . . X O O . 3
 2 . . O X . . . . . . . . . . . X X . . 2
 1 . . . . . . . . . . . . . . . . . . . 1
   A B C D E F G H J K L M N O P Q R S T
(;GM[1]FF[4]SZ[19]KM[7.5]HA[0]GN[GNU Go 3.8 stepped on a bug]
;B[pd];W[dp];B[pq];W[dd];B[fq];W[cn];B[jp];W[qn];B[qp];W[qk];B[fc];W[df]
;B[jd];W[qf];B[qh];W[lc];B[pf];W[pe];B[oe];W[qe];B[dr];W[pg];B[pc];W[of]
;B[rg];W[ck];B[ne];W[nf];B[me];W[nc];B[kb];W[cq];B[mf];W[od];B[rd];W[cr]
;B[hp];W[ra];B[ld];W[mg];B[lb];W[lg];B[on];W[po];B[oo];W[pp];B[op];W[qq]
;B[qr];W[rq];B[pr];W[rp];B[db];W[eb];B[ec];W[dc];B[cb];W[mc];B[kc];W[mb]
;B[bd];W[bf];B[rf];W[re];B[oc];W[nd];B[rc];W[qb];B[pb];W[qc]
)
gnugo 3.8 (seed 906253252): You stepped on a bug.
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