Profiling results ----------------- Total cpu time observed: 21150ms (out of 21564ms) Number of samples taken: 90 (once every 235ms) (Hiding functions with self<1.0% and local<2.0%: 1 of 104 hidden) ======================================================================== Caller Idx Total Self Name+src Local% ms(pct) ms(pct) Callee ======================================================================== ??? [25] 100.0% [1] 20248(95.7%) 0(0.0%) profile-thunk14 ...t/pkgs/profile-lib/main.rkt:9:0 run [4] 100.0% ------------------------------------------------------------------------ ??? [25] 100.0% [2] 15028(71.1%) 0(0.0%) run-improve58 ...ock/herbie/src/mainloop.rkt:242:0 for-loop [5] 89.4% get-final-combination [8] 10.6% ------------------------------------------------------------------------ ??? [25] 100.0% [3] 11300(53.4%) 366(1.7%) simplify ...lock/herbie/src/core/simplify.rkt:39:0 simplify-expr [6] 52.7% for-loop [7] 25.8% iterate-egraph!5 [10] 18.3% ------------------------------------------------------------------------ profile-thunk14 [1] 100.0% [4] 20248(95.7%) 0(0.0%) run ...share/racket/pkgs/profile-lib/main.rkt:31:2 ??? [25] 100.0% ------------------------------------------------------------------------ run-improve58 [2] 100.0% [5] 13438(63.5%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:253:8 run-iter! [9] 100.0% ------------------------------------------------------------------------ simplify [3] 100.0% [6] 5952(28.1%) 0(0.0%) simplify-expr ...herbie/src/core/simplify.rkt:68:0 iterate-egraph!5 [10] 100.0% ------------------------------------------------------------------------ simplify [3] 100.0% [7] 2912(13.8%) 0(0.0%) for-loop ...ock/herbie/src/core/simplify.rkt:61:12 iterate-egraph!5 [10] 100.0% ------------------------------------------------------------------------ run-improve58 [2] 100.0% [8] 1590(7.5%) 0(0.0%) get-final-combination ...ie/src/mainloop.rkt:269:0 split-table [11] 100.0% ------------------------------------------------------------------------ for-loop [5] 100.0% [9] 13438(63.5%) 0(0.0%) run-iter! ...tatlock/herbie/src/mainloop.rkt:223:0 simplify! [12] 84.1% finalize-iter! [15] 7.9% gen-series! [16] 6.4% localize-error [18] 1.6% ------------------------------------------------------------------------ simplify [3] 18.9% for-loop [7] 26.6% simplify-expr [6] 54.4% [10] 10934(51.7%) 0(0.0%) iterate-egraph!5 ...bie/src/core/simplify.rkt:95:0 one-iter [13] 93.0% debug7 [17] 5.2% ------------------------------------------------------------------------ get-final-combination [8] 100.0% [11] 1590(7.5%) 0(0.0%) split-table .../ztatlock/herbie/src/glue.rkt:171:0 infer-splitpoints4 [14] 100.0% ------------------------------------------------------------------------ run-iter! [9] 100.0% [12] 11300(53.4%) 0(0.0%) simplify! ...tatlock/herbie/src/mainloop.rkt:162:0 for-loop [19] 100.0% ------------------------------------------------------------------------ iterate-egraph!5 [10] 100.0% [13] 10164(48.1%) 810(3.8%) one-iter ...ock/herbie/src/core/simplify.rkt:106:0 for-loop [20] 57.2% loop [21] 28.5% apply-match [26] 6.3% ------------------------------------------------------------------------ split-table [11] 100.0% [14] 1590(7.5%) 0(0.0%) infer-splitpoints4 ...ie/src/core/regimes.rkt:19:0 option-on-expr [23] 100.0% ------------------------------------------------------------------------ run-iter! [9] 100.0% [15] 1056(5.0%) 0(0.0%) finalize-iter! ...ck/herbie/src/mainloop.rkt:177:0 ??? [22] 100.0% ------------------------------------------------------------------------ run-iter! [9] 100.0% [16] 862(4.1%) 0(0.0%) gen-series! ...tlock/herbie/src/mainloop.rkt:134:0 for-loop [24] 100.0% ------------------------------------------------------------------------ iterate-egraph!5 [10] 100.0% [17] 570(2.7%) 0(0.0%) debug7 /home/ztatlock/herbie/src/debug.rkt:102:0 ??? [22] 100.0% ------------------------------------------------------------------------ run-iter! [9] 100.0% [18] 220(1.0%) 0(0.0%) localize-error ...erbie/src/core/localize.rkt:47:0 hash-ref! [70] 100.0% ------------------------------------------------------------------------ simplify! [12] 100.0% [19] 11300(53.4%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:166:6 ??? [25] 100.0% ------------------------------------------------------------------------ for-loop [20] 46.2% one-iter [13] 53.8% [20] 5818(27.5%) 1722(8.1%) for-loop ...ck/herbie/src/core/simplify.rkt:116:12 for-loop [20] 46.2% match-e [32] 33.1% ??? [60] 2.1% ------------------------------------------------------------------------ one-iter [13] 100.0% [21] 2892(13.7%) 0(0.0%) loop ...cket/collects/racket/private/map.rkt:53:19 apply-match [26] 100.0% ------------------------------------------------------------------------ debug7 [17] 35.1% finalize-iter! [15] 64.9% [22] 1626(7.7%) 570(2.7%) ??? ...contract/private/arrow-val-first.rkt:357:18 for-loop [29] 51.7% atab-add-altns [30] 13.3% ------------------------------------------------------------------------ infer-splitpoints4 [14] 100.0% [23] 1590(7.5%) 0(0.0%) option-on-expr ...erbie/src/core/regimes.rkt:106:0 sort-context-on-expr [27] 86.0% loop [87] 14.0% ------------------------------------------------------------------------ gen-series! [16] 100.0% [24] 862(4.1%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:140:7 taylor-alt [28] 100.0% ------------------------------------------------------------------------ for-loop [19] 18.5% run [4] 39.7% [25] 21150(100.0%) 0(0.0%) ??? ...lects/racket/private/more-scheme.rkt:261:28 profile-thunk14 [1] 39.7% run-improve58 [2] 27.3% simplify [3] 18.5% loop [31] 14.5% ------------------------------------------------------------------------ one-iter [13] 18.2% loop [21] 81.8% [26] 3536(16.7%) 0(0.0%) apply-match .../herbie/src/core/simplify.rkt:122:2 merge-egraph-nodes! [33] 43.8% match-e [32] 18.7% update-leader! [41] 12.5% for-loop [38] 6.8% reduce-to-single! [37] 6.8% substitute-e [45] 5.7% mk-enode! [54] 5.7% ------------------------------------------------------------------------ option-on-expr [23] 100.0% [27] 1368(6.5%) 0(0.0%) sort-context-on-expr ...herbie/src/points.rkt:50:0 sort [34] 100.0% ------------------------------------------------------------------------ for-loop [24] 100.0% [28] 862(4.1%) 0(0.0%) taylor-alt ...e/ztatlock/herbie/src/glue.rkt:142:0 for-loop [36] 100.0% ------------------------------------------------------------------------ ??? [22] 100.0% [29] 840(4.0%) 0(0.0%) for-loop ...ock/herbie/src/core/alt-table.rkt:51:2 atab-add-altn [35] 100.0% ------------------------------------------------------------------------ ??? [22] 100.0% [30] 216(1.0%) 0(0.0%) atab-add-altns ...rbie/src/core/alt-table.rkt:50:0 atab-add-altn [35] 100.0% ------------------------------------------------------------------------ ??? [25] 100.0% [31] 6122(28.9%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:122:2 make-exacts* [47] 54.9% loop [39] 45.1% ------------------------------------------------------------------------ for-loop [51] 7.1% apply-match [26] 9.8% for-loop [20] 83.1% [32] 4518(21.4%) 2368(11.2%) match-e ...tatlock/herbie/src/core/ematch.rkt:46:0 for-loop [40] 40.0% for-loop [51] 7.6% ------------------------------------------------------------------------ apply-match [26] 100.0% [33] 1548(7.3%) 240(1.1%) merge-egraph-nodes! ...e/src/core/egraph.rkt:152:0 update-leader! [41] 70.2% make-sequence [46] 14.3% ------------------------------------------------------------------------ sort-context-on-expr [27] 100.0% [34] 1368(6.5%) 0(0.0%) sort ...ket/collects/racket/private/sort.rkt:213:0 copying-mergesort [43] 66.2% loop [49] 33.8% ------------------------------------------------------------------------ atab-add-altns [30] 20.5% for-loop [29] 79.5% [35] 1056(5.0%) 0(0.0%) atab-add-altn ...rbie/src/core/alt-table.rkt:208:0 best-and-tied-at-points [42] 100.0% ------------------------------------------------------------------------ taylor-alt [28] 100.0% [36] 862(4.1%) 0(0.0%) for-loop /home/ztatlock/herbie/src/glue.rkt:144:2 location-do [44] 100.0% ------------------------------------------------------------------------ apply-match [26] 100.0% [37] 240(1.1%) 240(1.1%) reduce-to-single! ...bie/src/core/egraph.rkt:324:0 ------------------------------------------------------------------------ apply-match [26] 100.0% [38] 240(1.1%) 0(0.0%) for-loop ...ck/herbie/src/core/simplify.rkt:136:10 substitute-e [45] 100.0% ------------------------------------------------------------------------ loop [31] 100.0% [39] 2758(13.0%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:93:2 loop [48] 52.5% make-exacts* [47] 39.5% eval-prog [66] 8.0% ------------------------------------------------------------------------ match-e [32] 100.0% [40] 1908(9.0%) 1264(6.0%) for-loop ...tlock/herbie/src/core/ematch.rkt:59:11 for-loop [51] 23.2% list-cartesian-product [55] 16.8% ------------------------------------------------------------------------ apply-match [26] 28.9% merge-egraph-nodes! [33] 71.1% [41] 1528(7.2%) 242(1.1%) update-leader! ...herbie/src/core/egraph.rkt:217:0 for-loop [50] 84.2% ------------------------------------------------------------------------ atab-add-altn [35] 100.0% [42] 1056(5.0%) 0(0.0%) best-and-tied-at-points ...ore/alt-table.rkt:122:0 errors [52] 79.2% for-loop [56] 20.8% ------------------------------------------------------------------------ copying-mergesort [43] 44.4% sort [34] 55.6% [43] 906(4.3%) 0(0.0%) copying-mergesort .../racket/private/sort.rkt:91:4 loop [49] 55.6% copying-mergesort [43] 44.4% ------------------------------------------------------------------------ location-do [44] 11.6% for-loop [36] 88.4% [44] 862(4.1%) 0(0.0%) location-do ...tlock/herbie/src/programs.rkt:129:0 approximate9 [53] 88.4% location-do [44] 11.6% ------------------------------------------------------------------------ apply-match [26] 15.2% substitute-e [45] 30.5% for-loop [38] 54.3% [45] 442(2.1%) 202(1.0%) substitute-e ...ck/herbie/src/core/ematch.rkt:71:0 mk-enode! [54] 54.3% substitute-e [45] 30.5% ------------------------------------------------------------------------ merge-egraph-nodes! [33] 100.0% [46] 222(1.0%) 222(1.0%) make-sequence ...ects/racket/private/for.rkt:508:2 ------------------------------------------------------------------------ loop [39] 24.5% loop [31] 75.5% [47] 4454(21.1%) 0(0.0%) make-exacts* ...tatlock/herbie/src/points.rkt:80:0 loop [87] 52.0% map [83] 48.0% ------------------------------------------------------------------------ loop [39] 100.0% [48] 1448(6.8%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:83:4 map [83] 100.0% ------------------------------------------------------------------------ sort [34] 33.8% copying-mergesort [43] 66.2% [49] 1368(6.5%) 0(0.0%) loop ...cket/collects/racket/private/sort.rkt:64:8 ??? [57] 100.0% ------------------------------------------------------------------------ update-leader! [41] 100.0% [50] 1286(6.1%) 202(1.0%) for-loop ...tlock/herbie/src/core/egraph.rkt:222:6 for-loop [58] 84.3% ------------------------------------------------------------------------ match-e [32] 40.0% for-loop [40] 60.0% [51] 1104(5.2%) 222(1.0%) for-loop ...tlock/herbie/src/core/ematch.rkt:65:37 match-e [32] 58.0% ??? [60] 21.9% ------------------------------------------------------------------------ loop [87] 21.0% best-and-tied-at-points [42] 79.0% [52] 1058(5.0%) 0(0.0%) errors /home/ztatlock/herbie/src/points.rkt:144:0 for-loop [59] 60.1% eval-prog [66] 39.9% ------------------------------------------------------------------------ location-do [44] 100.0% [53] 862(4.1%) 0(0.0%) approximate9 ...ck/herbie/src/core/taylor.rkt:11:0 loop [63] 48.7% taylor-quotient [62] 27.8% f37 [80] 23.4% ------------------------------------------------------------------------ apply-match [26] 45.7% substitute-e [45] 54.3% [54] 442(2.1%) 0(0.0%) mk-enode! ...lock/herbie/src/core/egraph.rkt:101:0 hash-has-key? [61] 100.0% ------------------------------------------------------------------------ list-cartesian-product [55] 50.0% for-loop [40] 50.0% [55] 422(2.0%) 220(1.0%) list-cartesian-product ...src/core/ematch.rkt:20:0 list-cartesian-product [55] 50.0% for-loop [65] 23.9% ------------------------------------------------------------------------ best-and-tied-at-points [42] 100.0% [56] 220(1.0%) 0(0.0%) for-loop ...k/herbie/src/core/alt-table.rkt:124:16 ??? [64] 100.0% ------------------------------------------------------------------------ loop [49] 100.0% [57] 1368(6.5%) 202(1.0%) ??? /home/ztatlock/herbie/src/points.rkt:52:27 eval-prog [66] 85.2% ------------------------------------------------------------------------ for-loop [50] 100.0% [58] 1084(5.1%) 0(0.0%) for-loop ...tlock/herbie/src/core/egraph.rkt:223:8 hash-update! [67] 100.0% ------------------------------------------------------------------------ errors [52] 100.0% [59] 636(3.0%) 0(0.0%) for-loop ...e/ztatlock/herbie/src/points.rkt:147:4 ??? [89] 100.0% ------------------------------------------------------------------------ for-loop [20] 49.8% for-loop [51] 50.2% [60] 482(2.3%) 240(1.1%) ??? /home/ztatlock/herbie/src/core/ematch.rkt:50:5 for-loop [68] 50.2% ------------------------------------------------------------------------ mk-enode! [54] 100.0% [61] 442(2.1%) 442(2.1%) hash-has-key? ...et/private/more-scheme.rkt:368:13 ------------------------------------------------------------------------ f37 [80] 45.7% approximate9 [53] 54.3% [62] 442(2.1%) 0(0.0%) taylor-quotient ...erbie/src/core/taylor.rkt:328:0 first-nonzero-exp [69] 54.3% simplify [75] 45.7% ------------------------------------------------------------------------ approximate9 [53] 100.0% [63] 420(2.0%) 0(0.0%) loop ...e/ztatlock/herbie/src/core/taylor.rkt:82:4 hash-ref! [70] 100.0% ------------------------------------------------------------------------ for-loop [56] 100.0% [64] 220(1.0%) 220(1.0%) ??? ...ket/collects/racket/private/for.rkt:1150:14 ------------------------------------------------------------------------ list-cartesian-product [55] 100.0% [65] 202(1.0%) 202(1.0%) for-loop ...atlock/herbie/src/core/ematch.rkt:24:8 ------------------------------------------------------------------------ loop [39] 12.2% errors [52] 23.3% ??? [57] 64.5% [66] 1808(8.5%) 1146(5.4%) eval-prog ...tatlock/herbie/src/programs.rkt:162:0 parse-lambda [72] 13.4% hash-ref! [70] 12.2% inductor [73] 11.1% ------------------------------------------------------------------------ for-loop [58] 100.0% [67] 1084(5.1%) 0(0.0%) hash-update! ...ket/private/more-scheme.rkt:362:13 ??? [71] 100.0% ------------------------------------------------------------------------ ??? [60] 100.0% [68] 242(1.1%) 242(1.1%) for-loop ...atlock/herbie/src/core/ematch.rkt:51:7 ------------------------------------------------------------------------ taylor-quotient [62] 100.0% [69] 240(1.1%) 0(0.0%) first-nonzero-exp ...bie/src/core/taylor.rkt:260:0 hash-ref! [70] 100.0% ------------------------------------------------------------------------ eval-prog [66] 6.7% loop [87] 13.3% ??? [76] 19.1% loop [63] 19.1% localize-error [18] 20.0% first-nonzero-exp [69] 21.8% [70] 1100(5.2%) 0(0.0%) hash-ref! ...racket/private/more-scheme.rkt:373:13 simplify [75] 40.9% f37 [80] 20.0% ??? [76] 19.1% ??? [79] 13.3% bigfloat-hash [78] 6.7% ------------------------------------------------------------------------ hash-update! [67] 100.0% [71] 1084(5.1%) 0(0.0%) ??? .../ztatlock/herbie/src/core/egraph.rkt:225:24 for-loop [74] 100.0% ------------------------------------------------------------------------ eval-prog [66] 100.0% [72] 242(1.1%) 0(0.0%) parse-lambda ...llects/racket/private/kw.rkt:393:2 loop [77] 100.0% ------------------------------------------------------------------------ eval-prog [66] 100.0% [73] 200(0.9%) 200(0.9%) inductor .../ztatlock/herbie/src/programs.rkt:73:2 ------------------------------------------------------------------------ ??? [71] 100.0% [74] 1084(5.1%) 844(4.0%) for-loop ...lock/herbie/src/core/egraph.rkt:226:26 update-en-expr [81] 22.1% ------------------------------------------------------------------------ taylor-quotient [62] 23.4% hash-ref! [70] 76.6% [75] 862(4.1%) 0(0.0%) simplify ...atlock/herbie/src/core/reduce.rkt:18:0 f37 [80] 76.6% make-multiplication-node [86] 23.4% ------------------------------------------------------------------------ hash-ref! [70] 100.0% [76] 420(2.0%) 0(0.0%) ??? ...e/ztatlock/herbie/src/core/taylor.rkt:42:15 hash-ref! [70] 100.0% ------------------------------------------------------------------------ parse-lambda [72] 25.0% loop [77] 75.0% [77] 242(1.1%) 242(1.1%) loop .../collects/racket/private/stxcase.rkt:112:7 loop [77] 75.0% ------------------------------------------------------------------------ hash-ref! [70] 100.0% [78] 220(1.0%) 0(0.0%) bigfloat-hash ...h/private/bigfloat/mpfr.rkt:165:0 bfcanonicalize [82] 100.0% ------------------------------------------------------------------------ hash-ref! [70] 100.0% [79] 220(1.0%) 0(0.0%) ??? /home/ztatlock/herbie/src/programs.rkt:197:5 loop [87] 100.0% ------------------------------------------------------------------------ loop [87] 9.2% map [83] 17.8% approximate9 [53] 18.7% hash-ref! [70] 20.3% simplify [75] 34.0% [80] 1082(5.1%) 0(0.0%) f37 ...t/collects/racket/match/compiler.rkt:499:40 map [83] 72.1% taylor-quotient [62] 18.7% combine-mterms [84] 9.2% ------------------------------------------------------------------------ for-loop [74] 100.0% [81] 240(1.1%) 240(1.1%) update-en-expr ...herbie/src/core/egraph.rkt:211:0 ------------------------------------------------------------------------ bigfloat-hash [78] 100.0% [82] 220(1.0%) 220(1.0%) bfcanonicalize .../private/bigfloat/mpfr.rkt:155:0 ------------------------------------------------------------------------ f37 [80] 19.7% loop [48] 32.4% make-exacts* [47] 47.8% [83] 4464(21.1%) 0(0.0%) map ...acket/collects/racket/private/map.rkt:21:13 loop [87] 85.2% parse-loop50 [85] 9.9% f37 [80] 4.3% make-multiplication-node [86] 0.6% ------------------------------------------------------------------------ f37 [80] 100.0% [84] 200(0.9%) 200(0.9%) combine-mterms ...herbie/src/core/reduce.rkt:182:0 ------------------------------------------------------------------------ parse-loop50 [85] 27.3% map [83] 72.7% [85] 440(2.1%) 240(1.1%) parse-loop50 ...s/racket/match/compiler.rkt:410:15 loop [87] 45.5% parse-loop50 [85] 27.3% ------------------------------------------------------------------------ simplify [75] 47.9% map [83] 52.1% [86] 422(2.0%) 0(0.0%) make-multiplication-node .../core/reduce.rkt:221:0 make-multiplication-subnode [88]100.0% ------------------------------------------------------------------------ map [83] 0.3% make-exacts* [47] 0.5% option-on-expr [23] 1.6% parse-loop50 [85] 2.9% ??? [79] 3.2% loop [87] 91.2% [87] 6964(32.9%) 0(0.0%) loop ...cket/collects/racket/private/map.rkt:26:19 loop [87] 91.2% hash-ref! [70] 3.2% f37 [80] 2.9% errors [52] 1.6% ??? [89] 0.8% for-loop [93] 0.3% ??? [99] 0.1% ->flonum [90] 0.0% ------------------------------------------------------------------------ make-multiplication-node [86] 100.0% [88] 422(2.0%) 0(0.0%) make-multiplication-subnode ...re/reduce.rkt:231:0 for-loop [91] 52.1% group-by68 [92] 47.9% ------------------------------------------------------------------------ for-loop [59] 10.1% loop [87] 89.9% [89] 6316(29.9%) 236(1.1%) ??? /home/ztatlock/herbie/src/programs.rkt:168:4 ??? [94] 84.8% real->bigfloat [95] 6.9% ??? [96] 4.5% ------------------------------------------------------------------------ loop [87] 100.0% [90] 222(1.0%) 0(0.0%) ->flonum ...ock/herbie/src/syntax/syntax.rkt:224:0 ??? [97] 100.0% ------------------------------------------------------------------------ make-multiplication-subnode [88]100.0% [91] 220(1.0%) 220(1.0%) for-loop ...tlock/herbie/src/core/reduce.rkt:233:3 ------------------------------------------------------------------------ make-multiplication-subnode [88]100.0% [92] 202(1.0%) 202(1.0%) group-by68 ...acket/collects/racket/list.rkt:749:0 ------------------------------------------------------------------------ loop [87] 100.0% [93] 200(0.9%) 0(0.0%) for-loop ...ock/herbie/src/core/simplify.rkt:161:2 eval-const-expr [98] 100.0% ------------------------------------------------------------------------ ??? [89] 100.0% [94] 5356(25.3%) 910(4.3%) ??? ...acket/collects/racket/private/kw.rkt:400:14 ??? [99] 79.3% ??? [100] 3.7% ------------------------------------------------------------------------ ??? [89] 100.0% [95] 438(2.1%) 438(2.1%) real->bigfloat .../private/bigfloat/mpfr.rkt:451:0 ------------------------------------------------------------------------ ??? [89] 100.0% [96] 286(1.4%) 286(1.4%) ??? ...ects/racket/contract/private/guts.rkt:638:8 ------------------------------------------------------------------------ ->flonum [90] 100.0% [97] 222(1.0%) 222(1.0%) ??? ...tract/private/arrow-higher-order.rkt:373:33 ------------------------------------------------------------------------ for-loop [93] 100.0% [98] 200(0.9%) 200(0.9%) eval-const-expr ...k/herbie/src/programs.rkt:180:0 ------------------------------------------------------------------------ loop [87] 4.9% ??? [94] 95.1% [99] 4466(21.1%) 2784(13.2%) ??? ...-racket/utils/simple-result-arrow.rkt:26:12 bfadd [101] 22.3% bfsin [102] 15.3% ------------------------------------------------------------------------ ??? [94] 100.0% [100] 200(0.9%) 200(0.9%) ??? /home/ztatlock/herbie/src/config.rkt:29:0 ------------------------------------------------------------------------ ??? [99] 100.0% [101] 998(4.7%) 998(4.7%) bfadd ...-lib/math/private/bigfloat/mpfr.rkt:819:4 ------------------------------------------------------------------------ ??? [99] 100.0% [102] 684(3.2%) 456(2.2%) bfsin ...-lib/math/private/bigfloat/mpfr.rkt:616:4 ??? [103] 33.3% ------------------------------------------------------------------------ bfsin [102] 100.0% [103] 228(1.1%) 228(1.1%) ??? .../share/racket/collects/ffi/unsafe.rkt:861:4 ------------------------------------------------------------------------