Profiling results ----------------- Total cpu time observed: 16788ms (out of 17132ms) Number of samples taken: 50 (once every 336ms) ======================================================================= Caller Idx Total Self Name+src Local% ms(pct) ms(pct) Callee ======================================================================= ??? [32] 100.0% [1] 15112(90.0%) 0(0.0%) profile-thunk16 ...t/pkgs/profile-lib/main.rkt:9:0 run [8] 100.0% ----------------------------------------------------------------------- ??? [32] 100.0% [2] 9258(55.1%) 0(0.0%) run-improve48 ...n-out-code/src/mainloop.rkt:256:0 for-loop [9] 100.0% ----------------------------------------------------------------------- location-do [57] 100.0% [3] 9194(54.8%) 0(0.0%) iterate-egraph!13 ...e/src/core/simplify.rkt:105:0 one-iter [10] 100.0% ----------------------------------------------------------------------- location-do [57] 100.0% [4] 348(2.1%) 0(0.0%) loop ...clean-out-code/src/core/simplify.rkt:237:2 pass [11] 100.0% ----------------------------------------------------------------------- ??? [49] 100.0% [5] 344(2.0%) 0(0.0%) approximate9 ...-out-code/src/core/taylor.rkt:12:0 loop [12] 100.0% ----------------------------------------------------------------------- hash-ref! [65] 100.0% [6] 344(2.0%) 0(0.0%) ??? ...e/clean-out-code/src/core/taylor.rkt:295:23 for-loop [14] 100.0% ----------------------------------------------------------------------- hash-ref! [65] 100.0% [7] 344(2.0%) 0(0.0%) ??? ...e/clean-out-code/src/core/taylor.rkt:285:26 for-loop [13] 100.0% ----------------------------------------------------------------------- profile-thunk16 [1] 97.9% [8] 15436(91.9%) 0(0.0%) run ...share/racket/pkgs/profile-lib/main.rkt:39:2 ??? [32] 100.0% ----------------------------------------------------------------------- run-improve48 [2] 100.0% [9] 9258(55.1%) 0(0.0%) for-loop .../clean-out-code/src/mainloop.rkt:271:8 run-iter! [15] 100.0% ----------------------------------------------------------------------- iterate-egraph!13 [3] 100.0% [10] 9194(54.8%) 0(0.0%) one-iter ...n-out-code/src/core/simplify.rkt:116:0 for-loop [16] 71.8% for-loop [17] 28.2% ----------------------------------------------------------------------- loop [4] 100.0% [11] 348(2.1%) 0(0.0%) pass ...clean-out-code/src/core/simplify.rkt:227:2 for-loop [18] 100.0% ----------------------------------------------------------------------- approximate9 [5] 100.0% [12] 344(2.0%) 0(0.0%) loop ...ie/clean-out-code/src/core/taylor.rkt:86:4 ??? [49] 100.0% ----------------------------------------------------------------------- ??? [7] 100.0% [13] 344(2.0%) 0(0.0%) for-loop ...an-out-code/src/core/taylor.rkt:285:52 hash-ref! [65] 100.0% ----------------------------------------------------------------------- ??? [6] 100.0% [14] 344(2.0%) 0(0.0%) for-loop ...an-out-code/src/core/taylor.rkt:298:27 hash-ref! [65] 100.0% ----------------------------------------------------------------------- for-loop [9] 100.0% [15] 9258(55.1%) 0(0.0%) run-iter! ...clean-out-code/src/mainloop.rkt:237:0 simplify! [19] 92.4% finalize-iter! [22] 3.9% gen-series! [24] 3.7% ----------------------------------------------------------------------- one-iter [10] 100.0% [16] 6600(39.3%) 0(0.0%) for-loop ...n-out-code/src/core/simplify.rkt:166:2 for-loop [20] 79.2% match-e [21] 15.3% update-leader! [35] 5.4% ----------------------------------------------------------------------- for-loop [17] 50.0% one-iter [10] 50.0% [17] 2594(15.5%) 0(0.0%) for-loop ...-out-code/src/core/simplify.rkt:126:12 for-loop [17] 50.0% match-e [21] 50.0% ----------------------------------------------------------------------- pass [11] 100.0% [18] 348(2.1%) 0(0.0%) for-loop ...-out-code/src/core/simplify.rkt:230:29 argmin [23] 100.0% ----------------------------------------------------------------------- run-iter! [15] 100.0% [19] 8552(50.9%) 0(0.0%) simplify! ...clean-out-code/src/mainloop.rkt:177:0 for-loop [25] 100.0% ----------------------------------------------------------------------- for-loop [16] 100.0% [20] 5230(31.2%) 0(0.0%) for-loop ...-out-code/src/core/simplify.rkt:148:10 merge-egraph-nodes! [27] 45.7% mk-enode! [34] 24.7% substitute-e [28] 17.7% loop! [64] 11.9% ----------------------------------------------------------------------- for-loop [16] 21.2% for-loop [33] 25.9% for-loop [17] 52.9% [21] 3606(21.5%) 962(5.7%) match-e ...clean-out-code/src/core/ematch.rkt:46:0 for-loop [26] 51.0% ??? [88] 12.3% curry* [30] 9.5% for-loop [33] 6.4% ----------------------------------------------------------------------- run-iter! [15] 100.0% [22] 362(2.2%) 0(0.0%) finalize-iter! ...-out-code/src/mainloop.rkt:191:0 ??? [88] 100.0% ----------------------------------------------------------------------- for-loop [18] 100.0% [23] 348(2.1%) 0(0.0%) argmin ...re/racket/collects/racket/list.rkt:743:0 for-loop [29] 100.0% ----------------------------------------------------------------------- run-iter! [15] 100.0% [24] 344(2.0%) 0(0.0%) gen-series! ...ean-out-code/src/mainloop.rkt:151:0 for-loop [31] 100.0% ----------------------------------------------------------------------- simplify! [19] 100.0% [25] 8552(50.9%) 0(0.0%) for-loop .../clean-out-code/src/mainloop.rkt:181:6 ??? [32] 100.0% ----------------------------------------------------------------------- match-e [21] 100.0% [26] 2618(15.6%) 312(1.9%) for-loop ...ean-out-code/src/core/ematch.rkt:59:11 for-loop [33] 81.1% filter [40] 12.9% ----------------------------------------------------------------------- for-loop [20] 100.0% [27] 2388(14.2%) 370(2.2%) merge-egraph-nodes! ...e/src/core/egraph.rkt:153:0 update-leader! [35] 39.2% for-loop [36] 15.2% loop! [64] 15.1% for-loop [37] 15.1% ----------------------------------------------------------------------- substitute-e [28] 16.3% for-loop [20] 83.7% [28] 926(5.5%) 0(0.0%) substitute-e ...-out-code/src/core/ematch.rkt:71:0 mk-enode! [34] 67.4% substitute-e [28] 16.3% variable? [41] 16.3% ----------------------------------------------------------------------- argmin [23] 100.0% [29] 348(2.1%) 0(0.0%) for-loop .../clean-out-code/src/programs.rkt:210:2 location-do [57] 100.0% ----------------------------------------------------------------------- match-e [21] 100.0% [30] 344(2.0%) 0(0.0%) curry* ...racket/collects/racket/function.rkt:44:2 procedure-arity [38] 100.0% ----------------------------------------------------------------------- gen-series! [24] 100.0% [31] 344(2.0%) 0(0.0%) for-loop .../clean-out-code/src/mainloop.rkt:157:7 taylor-alt [39] 100.0% ----------------------------------------------------------------------- for-loop [25] 17.0% run [8] 38.4% [32] 16788(100.0%) 0(0.0%) ??? ...lects/racket/private/more-scheme.rkt:261:28 profile-thunk16 [1] 36.5% location-do [57] 22.9% run-improve48 [2] 20.2% prepare-points [42] 17.5% loop [45] 3.0% ----------------------------------------------------------------------- match-e [21] 15.1% for-loop [26] 84.9% [33] 2280(13.6%) 642(3.8%) for-loop ...ean-out-code/src/core/ematch.rkt:65:37 match-e [21] 71.8% ----------------------------------------------------------------------- substitute-e [28] 32.5% for-loop [20] 67.5% [34] 1918(11.4%) 0(0.0%) mk-enode! ...an-out-code/src/core/egraph.rkt:102:0 new-enode [43] 100.0% ----------------------------------------------------------------------- for-loop [16] 27.7% merge-egraph-nodes! [27] 72.3% [35] 1294(7.7%) 0(0.0%) update-leader! ...t-code/src/core/egraph.rkt:218:0 for-loop [44] 100.0% ----------------------------------------------------------------------- merge-egraph-nodes! [27] 100.0% [36] 362(2.2%) 362(2.2%) for-loop ...ie/clean-out-code/src/common.rkt:100:9 ----------------------------------------------------------------------- merge-egraph-nodes! [27] 100.0% [37] 360(2.1%) 360(2.1%) for-loop ...ean-out-code/src/core/egraph.rkt:233:6 ----------------------------------------------------------------------- curry* [30] 100.0% [38] 344(2.0%) 344(2.0%) procedure-arity ...ket/private/norm-arity.rkt:7:27 ----------------------------------------------------------------------- for-loop [31] 100.0% [39] 344(2.0%) 0(0.0%) taylor-alt ...lean-out-code/src/mainloop.rkt:136:0 for-loop [46] 100.0% ----------------------------------------------------------------------- for-loop [26] 100.0% [40] 338(2.0%) 338(2.0%) filter ...t/collects/racket/private/list.rkt:256:2 ----------------------------------------------------------------------- substitute-e [28] 100.0% [41] 302(1.8%) 0(0.0%) variable? ...-out-code/src/syntax/syntax.rkt:665:0 ??? [88] 100.0% ----------------------------------------------------------------------- ??? [32] 100.0% [42] 5540(33.0%) 0(0.0%) prepare-points ...an-out-code/src/points.rkt:214:0 loop [53] 36.3% loop [47] 33.1% make-exacts* [52] 24.8% for-loop [51] 5.8% ----------------------------------------------------------------------- mk-enode! [34] 100.0% [43] 1918(11.4%) 0(0.0%) new-enode ...lean-out-code/src/core/enode.rkt:97:0 type-of-enode-expr [48] 100.0% ----------------------------------------------------------------------- update-leader! [35] 100.0% [44] 1294(7.7%) 312(1.9%) for-loop ...ean-out-code/src/core/egraph.rkt:223:6 for-loop [50] 75.9% ----------------------------------------------------------------------- ??? [32] 100.0% [45] 1000(6.0%) 0(0.0%) loop ...herbie/clean-out-code/src/points.rkt:238:2 make-exacts* [52] 63.8% loop [47] 36.2% ----------------------------------------------------------------------- taylor-alt [39] 100.0% [46] 344(2.0%) 0(0.0%) for-loop .../clean-out-code/src/mainloop.rkt:142:6 ??? [49] 100.0% ----------------------------------------------------------------------- loop [45] 16.5% prepare-points [42] 83.5% [47] 2196(13.1%) 0(0.0%) loop ...herbie/clean-out-code/src/points.rkt:158:2 make-exacts* [52] 50.6% loop [53] 49.4% ----------------------------------------------------------------------- new-enode [43] 100.0% [48] 1918(11.4%) 0(0.0%) type-of-enode-expr ...code/src/core/enode.rkt:68:0 get-sigs [54] 100.0% ----------------------------------------------------------------------- loop [12] 8.3% location-do [57] 8.3% for-loop [46] 8.3% loop [58] 75.0% [49] 1378(8.2%) 0(0.0%) ??? ...tract/private/arrow-higher-order.rkt:342:33 location-do [57] 83.4% approximate9 [5] 8.3% hash-ref! [65] 8.3% ----------------------------------------------------------------------- for-loop [44] 100.0% [50] 982(5.8%) 0(0.0%) for-loop ...ean-out-code/src/core/egraph.rkt:224:8 hash-update! [55] 100.0% ----------------------------------------------------------------------- prepare-points [42] 100.0% [51] 324(1.9%) 0(0.0%) for-loop ...e/clean-out-code/src/points.rkt:255:26 ??? [56] 100.0% ----------------------------------------------------------------------- loop [45] 20.4% loop [47] 35.6% prepare-points [42] 43.9% [52] 3122(18.6%) 0(0.0%) make-exacts* ...lean-out-code/src/points.rkt:138:0 loop [58] 89.5% eval-prog [61] 10.5% ----------------------------------------------------------------------- loop [47] 35.0% prepare-points [42] 65.0% [53] 3094(18.4%) 0(0.0%) loop ...herbie/clean-out-code/src/points.rkt:141:4 loop [58] 100.0% ----------------------------------------------------------------------- type-of-enode-expr [48] 100.0% [54] 1918(11.4%) 0(0.0%) get-sigs .../clean-out-code/src/type-check.rkt:5:0 ??? [59] 66.4% location-do [57] 17.4% ??? [88] 16.2% ----------------------------------------------------------------------- for-loop [50] 100.0% [55] 982(5.8%) 0(0.0%) hash-update! ...ket/private/more-scheme.rkt:362:13 ??? [60] 100.0% ----------------------------------------------------------------------- for-loop [51] 100.0% [56] 324(1.9%) 324(1.9%) ??? .../herbie/clean-out-code/src/points.rkt:230:7 ----------------------------------------------------------------------- get-sigs [54] 1.0% for-loop [29] 1.1% ??? [49] 12.6% for-loop [62] 42.6% ??? [32] 42.6% [57] 10920(65.0%) 680(4.1%) location-do ...acket/private/norm-define.rkt:53:83 for-loop [62] 42.6% iterate-egraph!13 [3] 41.6% ??? [68] 3.2% ??? [49] 3.2% ??? [91] 2.1% loop [4] 1.1% ----------------------------------------------------------------------- make-exacts* [52] 0.2% loop! [64] 0.2% loop [53] 3.0% loop [58] 96.7% [58] 6196(36.9%) 0(0.0%) loop ...cket/collects/racket/private/map.rkt:25:19 loop [58] 96.7% ??? [99] 3.1% loop! [64] 0.2% ??? [49] 0.0% ----------------------------------------------------------------------- get-sigs [54] 100.0% [59] 1274(7.6%) 0(0.0%) ??? ...ts/racket/contract/private/arr-i.rkt:804:10 for-loop [66] 51.0% ??? [67] 49.0% ----------------------------------------------------------------------- hash-update! [55] 100.0% [60] 982(5.8%) 0(0.0%) ??? ...e/clean-out-code/src/core/egraph.rkt:226:24 for-loop [63] 100.0% ----------------------------------------------------------------------- make-exacts* [52] 100.0% [61] 328(2.0%) 0(0.0%) eval-prog ...clean-out-code/src/programs.rkt:150:0 hash-ref! [65] 100.0% ----------------------------------------------------------------------- location-do [57] 100.0% [62] 9542(56.8%) 0(0.0%) for-loop ...n-out-code/src/core/simplify.rkt:66:12 location-do [57] 100.0% ----------------------------------------------------------------------- ??? [60] 100.0% [63] 982(5.8%) 624(3.7%) for-loop ...an-out-code/src/core/egraph.rkt:227:26 update-en-expr [72] 36.5% ----------------------------------------------------------------------- loop [58] 15.7% merge-egraph-nodes! [27] 36.7% for-loop [20] 47.7% [64] 982(5.8%) 314(1.9%) loop! ...e/clean-out-code/src/core/enode.rkt:192:2 custom-set-union [71] 36.7% loop [58] 15.7% set [76] 15.7% ----------------------------------------------------------------------- for-loop [14] 12.8% for-loop [13] 12.8% ??? [74] 12.8% ??? [49] 12.8% eval-prog [61] 48.8% [65] 672(4.0%) 0(0.0%) hash-ref! ...racket/private/more-scheme.rkt:373:13 bigfloat-hash [75] 48.8% ??? [74] 12.8% ??? [7] 12.8% ??? [6] 12.8% ??? [73] 12.8% ----------------------------------------------------------------------- ??? [59] 100.0% [66] 650(3.9%) 0(0.0%) for-loop ...racket/contract/private/hash.rkt:239:6 ??? [69] 100.0% ----------------------------------------------------------------------- ??? [59] 100.0% [67] 624(3.7%) 0(0.0%) ??? ...ects/racket/contract/private/hash.rkt:217:4 ??? [70] 100.0% ----------------------------------------------------------------------- location-do [57] 100.0% [68] 354(2.1%) 0(0.0%) ??? ...racket/collects/racket/private/kw.rkt:761:9 ??? [82] 100.0% ----------------------------------------------------------------------- for-loop [66] 100.0% [69] 650(3.9%) 0(0.0%) ??? ...cts/racket/contract/private/list.rkt:187:10 ??? [77] 100.0% ----------------------------------------------------------------------- ??? [67] 100.0% [70] 624(3.7%) 0(0.0%) ??? ...ects/racket/contract/private/list.rkt:169:2 ??? [78] 100.0% ----------------------------------------------------------------------- loop! [64] 100.0% [71] 360(2.1%) 0(0.0%) custom-set-union ...et/private/set-types.rkt:168:0 for-loop [79] 100.0% ----------------------------------------------------------------------- for-loop [63] 100.0% [72] 358(2.1%) 358(2.1%) update-en-expr ...t-code/src/core/egraph.rkt:212:0 ----------------------------------------------------------------------- hash-ref! [65] 100.0% [73] 344(2.0%) 0(0.0%) ??? ...e/clean-out-code/src/core/taylor.rkt:322:33 for-loop [80] 100.0% ----------------------------------------------------------------------- hash-ref! [65] 100.0% [74] 344(2.0%) 0(0.0%) ??? ...ie/clean-out-code/src/core/taylor.rkt:44:15 hash-ref! [65] 100.0% ----------------------------------------------------------------------- hash-ref! [65] 100.0% [75] 328(2.0%) 0(0.0%) bigfloat-hash ...h/private/bigfloat/mpfr.rkt:165:0 bfcanonicalize [81] 100.0% ----------------------------------------------------------------------- loop! [64] 100.0% [76] 308(1.8%) 308(1.8%) set ...collects/racket/private/set-types.rkt:981:0 ----------------------------------------------------------------------- ??? [69] 100.0% [77] 650(3.9%) 0(0.0%) ??? ...ects/racket/contract/private/list.rkt:686:7 ??? [82] 100.0% ----------------------------------------------------------------------- ??? [70] 100.0% [78] 624(3.7%) 328(2.0%) ??? ...ects/racket/contract/private/list.rkt:678:5 for-loop [85] 47.4% ----------------------------------------------------------------------- custom-set-union [71] 100.0% [79] 360(2.1%) 0(0.0%) for-loop ...cts/racket/private/set-types.rkt:174:3 for-loop [83] 100.0% ----------------------------------------------------------------------- ??? [73] 100.0% [80] 344(2.0%) 0(0.0%) for-loop ...an-out-code/src/core/taylor.rkt:324:46 simplify [84] 100.0% ----------------------------------------------------------------------- bigfloat-hash [75] 100.0% [81] 328(2.0%) 328(2.0%) bfcanonicalize .../private/bigfloat/mpfr.rkt:155:0 ----------------------------------------------------------------------- ??? [68] 35.3% ??? [77] 64.7% [82] 1004(6.0%) 1004(6.0%) ??? ...ects/racket/contract/private/guts.rkt:644:8 ----------------------------------------------------------------------- for-loop [79] 100.0% [83] 360(2.1%) 360(2.1%) for-loop ...cts/racket/private/set-types.rkt:178:5 ----------------------------------------------------------------------- for-loop [80] 100.0% [84] 344(2.0%) 0(0.0%) simplify ...lean-out-code/src/core/reduce.rkt:16:0 debug7 [86] 100.0% ----------------------------------------------------------------------- ??? [78] 100.0% [85] 296(1.8%) 0(0.0%) for-loop ...racket/contract/private/list.rkt:680:9 add-list-context [87] 100.0% ----------------------------------------------------------------------- simplify [84] 100.0% [86] 344(2.0%) 0(0.0%) debug7 ...erbie/clean-out-code/src/debug.rkt:102:0 ??? [88] 100.0% ----------------------------------------------------------------------- for-loop [85] 100.0% [87] 296(1.8%) 296(1.8%) add-list-context ...ontract/private/list.rkt:752:0 ----------------------------------------------------------------------- variable? [41] 13.0% get-sigs [54] 13.3% debug7 [86] 14.8% finalize-iter! [22] 15.6% match-e [21] 43.3% [88] 2326(13.9%) 1032(6.1%) ??? ...contract/private/arrow-val-first.rkt:357:18 hash-has-key? [89] 40.1% for-loop [90] 15.6% ----------------------------------------------------------------------- ??? [88] 100.0% [89] 932(5.6%) 0(0.0%) hash-has-key? ...et/private/more-scheme.rkt:368:13 ??? [92] 66.7% ??? [91] 33.3% ----------------------------------------------------------------------- ??? [88] 100.0% [90] 362(2.2%) 0(0.0%) for-loop ...n-out-code/src/core/alt-table.rkt:51:2 atab-add-altn [93] 100.0% ----------------------------------------------------------------------- hash-has-key? [89] 31.2% location-do [57] 68.8% [91] 992(5.9%) 348(2.1%) ??? ...ects/racket/contract/private/list.rkt:737:4 ??? [95] 33.7% for-loop [96] 31.2% ----------------------------------------------------------------------- hash-has-key? [89] 100.0% [92] 622(3.7%) 622(3.7%) ??? ...ects/racket/contract/private/hash.rkt:245:7 ----------------------------------------------------------------------- for-loop [90] 100.0% [93] 362(2.2%) 0(0.0%) atab-add-altn ...code/src/core/alt-table.rkt:208:0 best-and-tied-at-points [94] 100.0% ----------------------------------------------------------------------- atab-add-altn [93] 100.0% [94] 362(2.2%) 0(0.0%) best-and-tied-at-points ...ore/alt-table.rkt:122:0 errors [97] 100.0% ----------------------------------------------------------------------- ??? [91] 100.0% [95] 334(2.0%) 334(2.0%) ??? ...private/unconstrained-domain-arrow.rkt:74:4 ----------------------------------------------------------------------- ??? [91] 100.0% [96] 310(1.8%) 310(1.8%) for-loop ...acket/contract/private/list.rkt:743:12 ----------------------------------------------------------------------- best-and-tied-at-points [94] 100.0% [97] 362(2.2%) 0(0.0%) errors ...rbie/clean-out-code/src/points.rkt:271:0 for-loop [98] 100.0% ----------------------------------------------------------------------- errors [97] 100.0% [98] 362(2.2%) 0(0.0%) for-loop ...ie/clean-out-code/src/points.rkt:274:4 ??? [99] 100.0% ----------------------------------------------------------------------- for-loop [98] 6.9% loop [58] 93.1% [99] 5216(31.1%) 744(4.4%) ??? ...erbie/clean-out-code/src/programs.rkt:156:4 ??? [100] 71.7% ??? [101] 14.0% ----------------------------------------------------------------------- ??? [99] 100.0% [100] 3740(22.3%) 1632(9.7%) ??? ...acket/collects/racket/private/kw.rkt:444:14 for-loop [103] 18.7% ??? [106] 18.3% bf* [105] 9.7% ??? [104] 9.7% ----------------------------------------------------------------------- ??? [99] 100.0% [101] 732(4.4%) 0(0.0%) ??? ...contract/private/../../private/kw.rkt:761:9 real->bigfloat [102] 100.0% ----------------------------------------------------------------------- ??? [101] 100.0% [102] 732(4.4%) 382(2.3%) real->bigfloat .../private/bigfloat/mpfr.rkt:451:0 ??? [108] 47.8% ----------------------------------------------------------------------- ??? [100] 100.0% [103] 698(4.2%) 326(1.9%) for-loop ...n-out-code/src/syntax/syntax.rkt:531:2 ...higher-order.rkt:342:33 [107] 53.3% ----------------------------------------------------------------------- ??? [100] 100.0% [104] 362(2.2%) 362(2.2%) ??? ...rivate/unconstrained-domain-arrow.rkt:40:13 ----------------------------------------------------------------------- ??? [100] 100.0% [105] 362(2.2%) 0(0.0%) bf* ...ath/private/bigfloat/bigfloat-mpfr.rkt:95:0 ??? [106] 100.0% ----------------------------------------------------------------------- bf* [105] 34.5% ??? [100] 65.5% [106] 1048(6.2%) 0(0.0%) ??? ...-racket/utils/simple-result-arrow.rkt:39:12 bfsub [109] 100.0% ----------------------------------------------------------------------- for-loop [103] 100.0% [107] 372(2.2%) 372(2.2%) ...higher-order.rkt:342:33 (unknown source) ----------------------------------------------------------------------- real->bigfloat [102] 100.0% [108] 350(2.1%) 350(2.1%) ??? .../share/racket/collects/ffi/unsafe.rkt:861:4 ----------------------------------------------------------------------- ??? [106] 100.0% [109] 1048(6.2%) 1048(6.2%) bfsub ...-lib/math/private/bigfloat/mpfr.rkt:819:4 -----------------------------------------------------------------------