Profiling results ----------------- Total cpu time observed: 26256ms (out of 26512ms) Number of samples taken: 119 (once every 221ms) (Hiding functions with self<1.0% and local<2.0%: 3 of 106 hidden) ===================================================================== Caller Idx Total Self Name+src Local% ms(pct) ms(pct) Callee ===================================================================== ??? [11] 100.0% [1] 25832(98.4%) 0(0.0%) profile-thunk14 ...t/pkgs/profile-lib/main.rkt:9:0 run [7] 100.0% --------------------------------------------------------------------- ??? [11] 100.0% [2] 5238(19.9%) 0(0.0%) simplify ...lock/herbie/src/core/simplify.rkt:39:0 iterate-egraph!5 [12] 55.9% simplify-expr [8] 28.3% for-loop [9] 15.8% --------------------------------------------------------------------- loop [89] 100.0% [3] 644(2.5%) 0(0.0%) completely-simplify-alt ...erbie/src/glue.rkt:87:0 simplify-expr [8] 100.0% --------------------------------------------------------------------- hash-ref! [84] 100.0% [4] 444(1.7%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:338:33 hash-ref! [84] 54.5% for-loop [10] 45.5% --------------------------------------------------------------------- loop [89] 100.0% [5] 200(0.8%) 0(0.0%) ??? ...ket/collects/racket/private/list.rkt:323:18 hash-ref! [84] 100.0% --------------------------------------------------------------------- loop [89] 100.0% [6] 200(0.8%) 0(0.0%) localize-error ...erbie/src/core/localize.rkt:47:0 hash-ref! [84] 100.0% --------------------------------------------------------------------- profile-thunk14 [1] 100.0% [7] 25832(98.4%) 0(0.0%) run ...share/racket/pkgs/profile-lib/main.rkt:31:2 ??? [11] 100.0% --------------------------------------------------------------------- completely-simplify-alt [3] 30.3% simplify [2] 69.7% [8] 2128(8.1%) 0(0.0%) simplify-expr ...herbie/src/core/simplify.rkt:68:0 iterate-egraph!5 [12] 68.9% loop [13] 20.9% mk-egraph [14] 10.2% --------------------------------------------------------------------- simplify [2] 100.0% [9] 826(3.1%) 0(0.0%) for-loop ...ock/herbie/src/core/simplify.rkt:61:12 iterate-egraph!5 [12] 75.5% mk-egraph [14] 24.5% --------------------------------------------------------------------- ??? [4] 100.0% [10] 202(0.8%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:341:46 hash-ref! [84] 100.0% --------------------------------------------------------------------- for-loop [43] 6.8% run [7] 46.0% [11] 26256(100.0%) 0(0.0%) ??? ...lects/racket/private/more-scheme.rkt:261:28 profile-thunk14 [1] 46.0% loop [20] 31.3% run-improve58 [15] 15.9% simplify [2] 6.8% --------------------------------------------------------------------- for-loop [9] 12.4% simplify-expr [8] 29.2% simplify [2] 58.3% [12] 5018(19.1%) 0(0.0%) iterate-egraph!5 ...bie/src/core/simplify.rkt:95:0 one-iter [16] 95.7% map-enodes [19] 4.3% --------------------------------------------------------------------- simplify-expr [8] 100.0% [13] 444(1.7%) 0(0.0%) loop ...tatlock/herbie/src/core/simplify.rkt:203:2 pass [17] 100.0% --------------------------------------------------------------------- for-loop [9] 48.1% simplify-expr [8] 51.9% [14] 420(1.6%) 0(0.0%) mk-egraph ...lock/herbie/src/core/egraph.rkt:123:0 expr->enode [18] 100.0% --------------------------------------------------------------------- ??? [11] 100.0% [15] 10018(38.2%) 0(0.0%) run-improve58 ...ock/herbie/src/mainloop.rkt:242:0 for-loop [21] 64.7% finalize-table! [23] 16.5% get-final-combination [24] 16.4% loop [20] 2.4% --------------------------------------------------------------------- iterate-egraph!5 [12] 100.0% [16] 4800(18.3%) 0(0.0%) one-iter ...ock/herbie/src/core/simplify.rkt:106:0 for-loop [22] 70.2% loop [25] 25.6% apply-match [31] 4.2% --------------------------------------------------------------------- loop [13] 100.0% [17] 444(1.7%) 0(0.0%) pass ...tatlock/herbie/src/core/simplify.rkt:193:2 for-loop [26] 100.0% --------------------------------------------------------------------- mk-egraph [14] 100.0% [18] 420(1.6%) 0(0.0%) expr->enode ...ck/herbie/src/core/egraph.rkt:124:2 mk-enode! [47] 100.0% --------------------------------------------------------------------- iterate-egraph!5 [12] 100.0% [19] 218(0.8%) 0(0.0%) map-enodes ...ock/herbie/src/core/egraph.rkt:139:0 loop [89] 100.0% --------------------------------------------------------------------- run-improve58 [15] 1.5% ??? [11] 98.5% [20] 16478(62.8%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:122:2 make-exacts* [32] 55.5% loop [27] 43.1% loop [34] 1.5% --------------------------------------------------------------------- run-improve58 [15] 100.0% [21] 6484(24.7%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:253:8 run-iter! [28] 100.0% --------------------------------------------------------------------- for-loop [22] 46.8% one-iter [16] 53.2% [22] 3370(12.8%) 1686(6.4%) for-loop ...ck/herbie/src/core/simplify.rkt:116:12 for-loop [22] 46.8% match-e [35] 25.0% --------------------------------------------------------------------- run-improve58 [15] 100.0% [23] 1648(6.3%) 0(0.0%) finalize-table! ...k/herbie/src/mainloop.rkt:264:0 post-process [29] 100.0% --------------------------------------------------------------------- run-improve58 [15] 100.0% [24] 1646(6.3%) 0(0.0%) get-final-combination ...ie/src/mainloop.rkt:269:0 split-table [30] 100.0% --------------------------------------------------------------------- one-iter [16] 100.0% [25] 1230(4.7%) 0(0.0%) loop ...cket/collects/racket/private/map.rkt:53:19 apply-match [31] 100.0% --------------------------------------------------------------------- pass [17] 100.0% [26] 444(1.7%) 222(0.8%) for-loop ...ck/herbie/src/core/simplify.rkt:196:29 make-sequence [49] 50.0% --------------------------------------------------------------------- loop [20] 100.0% [27] 7096(27.0%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:93:2 loop [34] 62.5% make-exacts* [32] 37.5% --------------------------------------------------------------------- for-loop [21] 100.0% [28] 6484(24.7%) 0(0.0%) run-iter! ...tatlock/herbie/src/mainloop.rkt:223:0 simplify! [33] 86.3% finalize-iter! [37] 10.0% gen-series! [40] 3.7% --------------------------------------------------------------------- finalize-table! [23] 100.0% [29] 1648(6.3%) 0(0.0%) post-process .../ztatlock/herbie/src/glue.rkt:95:0 loop [89] 51.2% for-loop [38] 36.7% ??? [46] 12.1% --------------------------------------------------------------------- get-final-combination [24] 100.0% [30] 1646(6.3%) 0(0.0%) split-table .../ztatlock/herbie/src/glue.rkt:171:0 infer-splitpoints4 [36] 100.0% --------------------------------------------------------------------- one-iter [16] 14.0% loop [25] 86.0% [31] 1430(5.4%) 0(0.0%) apply-match .../herbie/src/core/simplify.rkt:122:2 match-e [35] 39.6% merge-egraph-nodes! [39] 31.0% mk-enode! [47] 15.4% substitute-e [41] 14.0% --------------------------------------------------------------------- loop [27] 22.5% loop [20] 77.5% [32] 11802(44.9%) 0(0.0%) make-exacts* ...tatlock/herbie/src/points.rkt:80:0 loop [89] 52.9% map [42] 47.1% --------------------------------------------------------------------- run-iter! [28] 100.0% [33] 5596(21.3%) 0(0.0%) simplify! ...tatlock/herbie/src/mainloop.rkt:162:0 for-loop [43] 100.0% --------------------------------------------------------------------- loop [20] 5.1% loop [27] 94.9% [34] 4676(17.8%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:83:4 map [42] 100.0% --------------------------------------------------------------------- for-loop [56] 4.9% apply-match [31] 25.2% for-loop [22] 70.0% [35] 2250(8.6%) 640(2.4%) match-e ...tatlock/herbie/src/core/ematch.rkt:46:0 for-loop [45] 43.9% list-cartesian-product [50] 17.8% constant? [101] 9.9% for-loop [56] 4.9% --------------------------------------------------------------------- split-table [30] 100.0% [36] 1646(6.3%) 0(0.0%) infer-splitpoints4 ...ie/src/core/regimes.rkt:19:0 option-on-expr [44] 100.0% --------------------------------------------------------------------- run-iter! [28] 100.0% [37] 646(2.5%) 0(0.0%) finalize-iter! ...ck/herbie/src/mainloop.rkt:177:0 ??? [46] 100.0% --------------------------------------------------------------------- post-process [29] 100.0% [38] 604(2.3%) 0(0.0%) for-loop /home/ztatlock/herbie/src/glue.rkt:119:17 append-map [48] 100.0% --------------------------------------------------------------------- for-loop [53] 25.0% apply-match [31] 75.0% [39] 444(1.7%) 0(0.0%) merge-egraph-nodes! ...e/src/core/egraph.rkt:152:0 update-leader! [52] 50.0% for-loop [53] 25.0% make-sequence [49] 25.0% --------------------------------------------------------------------- run-iter! [28] 100.0% [40] 242(0.9%) 0(0.0%) gen-series! ...tlock/herbie/src/mainloop.rkt:134:0 for-loop [51] 100.0% --------------------------------------------------------------------- apply-match [31] 100.0% [41] 200(0.8%) 0(0.0%) substitute-e ...ck/herbie/src/core/ematch.rkt:71:0 mk-enode! [47] 100.0% --------------------------------------------------------------------- parse-loop50 [87] 0.5% f37 [92] 3.3% loop [34] 43.9% make-exacts* [32] 52.3% [42] 10640(40.5%) 0(0.0%) map ...acket/collects/racket/private/map.rkt:21:13 loop [89] 96.2% f37 [92] 1.9% parse-loop50 [87] 1.9% --------------------------------------------------------------------- simplify! [33] 100.0% [43] 5596(21.3%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:166:6 ??? [11] 93.6% debug-print [88] 6.4% --------------------------------------------------------------------- infer-splitpoints4 [36] 100.0% [44] 1646(6.3%) 0(0.0%) option-on-expr ...erbie/src/core/regimes.rkt:106:0 sort-context-on-expr [54] 87.7% pick-errors [61] 12.3% --------------------------------------------------------------------- match-e [35] 100.0% [45] 988(3.8%) 442(1.7%) for-loop ...tlock/herbie/src/core/ematch.rkt:59:11 for-loop [56] 55.3% --------------------------------------------------------------------- post-process [29] 23.6% finalize-iter! [37] 76.4% [46] 846(3.2%) 0(0.0%) ??? ...contract/private/arrow-val-first.rkt:357:18 for-loop [57] 76.4% atab-add-altns [63] 23.6% --------------------------------------------------------------------- substitute-e [41] 23.8% apply-match [31] 26.2% expr->enode [18] 50.0% [47] 840(3.2%) 218(0.8%) mk-enode! ...lock/herbie/src/core/egraph.rkt:101:0 new-enode [58] 50.2% hash-has-key? [62] 23.8% --------------------------------------------------------------------- f37 [92] 16.7% for-loop [38] 83.3% [48] 604(2.3%) 0(0.0%) append-map ...acket/collects/racket/list.rkt:565:2 taylor-alt [55] 49.8% loop [89] 33.4% f37 [92] 16.7% --------------------------------------------------------------------- merge-egraph-nodes! [39] 50.0% for-loop [26] 50.0% [49] 444(1.7%) 222(0.8%) make-sequence ...ects/racket/private/for.rkt:508:2 ??? [59] 50.0% --------------------------------------------------------------------- match-e [35] 100.0% [50] 400(1.5%) 400(1.5%) list-cartesian-product ...src/core/ematch.rkt:20:0 --------------------------------------------------------------------- gen-series! [40] 100.0% [51] 242(0.9%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:140:7 taylor-alt [55] 100.0% --------------------------------------------------------------------- merge-egraph-nodes! [39] 100.0% [52] 222(0.8%) 0(0.0%) update-leader! ...herbie/src/core/egraph.rkt:217:0 for-loop [60] 100.0% --------------------------------------------------------------------- merge-egraph-nodes! [39] 100.0% [53] 222(0.8%) 0(0.0%) for-loop ...lock/herbie/src/core/egraph.rkt:200:10 merge-egraph-nodes! [39] 100.0% --------------------------------------------------------------------- option-on-expr [44] 100.0% [54] 1444(5.5%) 0(0.0%) sort-context-on-expr ...herbie/src/points.rkt:50:0 sort [64] 100.0% --------------------------------------------------------------------- loop [89] 23.9% for-loop [51] 28.6% append-map [48] 47.5% [55] 846(3.2%) 0(0.0%) taylor-alt ...e/ztatlock/herbie/src/glue.rkt:142:0 for-loop [66] 100.0% --------------------------------------------------------------------- match-e [35] 28.7% for-loop [45] 71.3% [56] 766(2.9%) 546(2.1%) for-loop ...tlock/herbie/src/core/ematch.rkt:65:37 match-e [35] 28.7% --------------------------------------------------------------------- ??? [46] 100.0% [57] 646(2.5%) 0(0.0%) for-loop ...ock/herbie/src/core/alt-table.rkt:51:2 atab-add-altn [65] 100.0% --------------------------------------------------------------------- mk-enode! [47] 100.0% [58] 422(1.6%) 0(0.0%) new-enode ...atlock/herbie/src/core/enode.rkt:68:0 set [67] 100.0% --------------------------------------------------------------------- make-sequence [49] 100.0% [59] 222(0.8%) 222(0.8%) ??? ...acket/collects/racket/private/for.rkt:428:7 --------------------------------------------------------------------- update-leader! [52] 100.0% [60] 222(0.8%) 0(0.0%) for-loop ...tlock/herbie/src/core/egraph.rkt:222:6 for-loop [68] 100.0% --------------------------------------------------------------------- option-on-expr [44] 100.0% [61] 202(0.8%) 0(0.0%) pick-errors ...k/herbie/src/core/regimes.rkt:173:0 for-loop [69] 100.0% --------------------------------------------------------------------- mk-enode! [47] 100.0% [62] 200(0.8%) 200(0.8%) hash-has-key? ...et/private/more-scheme.rkt:368:13 --------------------------------------------------------------------- ??? [46] 100.0% [63] 200(0.8%) 0(0.0%) atab-add-altns ...rbie/src/core/alt-table.rkt:50:0 atab-add-altn [65] 100.0% --------------------------------------------------------------------- sort-context-on-expr [54] 100.0% [64] 1444(5.5%) 0(0.0%) sort ...ket/collects/racket/private/sort.rkt:213:0 copying-mergesort [70] 70.9% loop [74] 29.1% --------------------------------------------------------------------- atab-add-altns [63] 23.6% for-loop [57] 76.4% [65] 846(3.2%) 0(0.0%) atab-add-altn ...rbie/src/core/alt-table.rkt:208:0 best-and-tied-at-points [71]100.0% --------------------------------------------------------------------- taylor-alt [55] 100.0% [66] 846(3.2%) 0(0.0%) for-loop /home/ztatlock/herbie/src/glue.rkt:144:2 location-do [72] 100.0% --------------------------------------------------------------------- new-enode [58] 100.0% [67] 422(1.6%) 422(1.6%) set ...collects/racket/private/set-types.rkt:982:0 --------------------------------------------------------------------- for-loop [60] 100.0% [68] 222(0.8%) 0(0.0%) for-loop ...tlock/herbie/src/core/egraph.rkt:223:8 hash-update! [73] 100.0% --------------------------------------------------------------------- pick-errors [61] 100.0% [69] 202(0.8%) 0(0.0%) for-loop ...lock/herbie/src/core/regimes.rkt:176:4 eval-prog [83] 100.0% --------------------------------------------------------------------- sort [64] 47.9% copying-mergesort [70] 52.1% [70] 1024(3.9%) 0(0.0%) copying-mergesort .../racket/private/sort.rkt:91:4 copying-mergesort [70] 52.1% loop [74] 42.6% jloop [78] 5.4% --------------------------------------------------------------------- atab-add-altn [65] 100.0% [71] 846(3.2%) 0(0.0%) best-and-tied-at-points ...ore/alt-table.rkt:122:0 errors [75] 100.0% --------------------------------------------------------------------- location-do [72] 23.8% for-loop [66] 76.2% [72] 846(3.2%) 0(0.0%) location-do ...tlock/herbie/src/programs.rkt:129:0 approximate9 [76] 76.2% location-do [72] 23.8% --------------------------------------------------------------------- for-loop [68] 100.0% [73] 222(0.8%) 0(0.0%) hash-update! ...ket/private/more-scheme.rkt:362:13 ??? [77] 100.0% --------------------------------------------------------------------- sort [64] 34.3% copying-mergesort [70] 65.7% [74] 1224(4.7%) 0(0.0%) loop ...cket/collects/racket/private/sort.rkt:64:8 ??? [79] 100.0% --------------------------------------------------------------------- best-and-tied-at-points [71]100.0% [75] 846(3.2%) 0(0.0%) errors /home/ztatlock/herbie/src/points.rkt:144:0 for-loop [81] 73.8% eval-prog [83] 26.2% --------------------------------------------------------------------- location-do [72] 100.0% [76] 846(3.2%) 0(0.0%) approximate9 ...ck/herbie/src/core/taylor.rkt:11:0 loop [80] 100.0% --------------------------------------------------------------------- hash-update! [73] 100.0% [77] 222(0.8%) 0(0.0%) ??? .../ztatlock/herbie/src/core/egraph.rkt:225:24 for-loop [82] 100.0% --------------------------------------------------------------------- copying-mergesort [70] 100.0% [78] 220(0.8%) 0(0.0%) jloop ...et/collects/racket/private/sort.rkt:85:19 ??? [79] 100.0% --------------------------------------------------------------------- jloop [78] 15.2% loop [74] 84.8% [79] 1444(5.5%) 0(0.0%) ??? /home/ztatlock/herbie/src/points.rkt:52:27 eval-prog [83] 100.0% --------------------------------------------------------------------- approximate9 [76] 100.0% [80] 846(3.2%) 0(0.0%) loop ...e/ztatlock/herbie/src/core/taylor.rkt:82:4 hash-ref! [84] 100.0% --------------------------------------------------------------------- errors [75] 100.0% [81] 624(2.4%) 222(0.8%) for-loop ...e/ztatlock/herbie/src/points.rkt:147:4 ??? [91] 64.4% --------------------------------------------------------------------- ??? [77] 100.0% [82] 222(0.8%) 222(0.8%) for-loop ...lock/herbie/src/core/egraph.rkt:226:26 --------------------------------------------------------------------- for-loop [69] 10.8% errors [75] 11.9% ??? [79] 77.3% [83] 1868(7.1%) 1868(7.1%) eval-prog ...tatlock/herbie/src/programs.rkt:162:0 --------------------------------------------------------------------- for-loop [10] 6.4% ??? [4] 7.7% ??? [5] 9.6% localize-error [6] 9.6% ??? [85] 33.4% loop [80] 33.4% [84] 1046(4.0%) 0(0.0%) hash-ref! ...racket/private/more-scheme.rkt:373:13 ??? [85] 33.4% simplify [86] 33.4% parse-loop50 [87] 19.1% ??? [4] 14.1% --------------------------------------------------------------------- hash-ref! [84] 100.0% [85] 846(3.2%) 0(0.0%) ??? ...e/ztatlock/herbie/src/core/taylor.rkt:42:15 hash-ref! [84] 100.0% --------------------------------------------------------------------- hash-ref! [84] 100.0% [86] 846(3.2%) 0(0.0%) simplify ...atlock/herbie/src/core/reduce.rkt:18:0 f37 [92] 47.5% parse-loop50 [87] 28.6% debug-print [88] 23.9% --------------------------------------------------------------------- hash-ref! [84] 23.7% simplify [86] 28.7% map [42] 47.6% [87] 844(3.2%) 442(1.7%) parse-loop50 ...s/racket/match/compiler.rkt:410:15 loop [89] 35.7% map [42] 12.0% f37 [92] 11.8% --------------------------------------------------------------------- simplify [86] 36.1% for-loop [43] 63.9% [88] 560(2.1%) 0(0.0%) debug-print ...ztatlock/herbie/src/debug.rkt:107:0 for-loop [90] 100.0% --------------------------------------------------------------------- map-enodes [19] 0.0% post-process [29] 0.5% parse-loop50 [87] 0.6% make-exacts* [32] 0.6% append-map [48] 1.1% map [42] 1.2% loop [89] 96.0% [89] 17944(68.3%) 240(0.9%) loop ...cket/collects/racket/private/map.rkt:26:19 loop [89] 96.0% ??? [91] 1.8% taylor-alt [55] 1.1% f37 [92] 0.6% completely-simplify-alt [3] 0.5% localize-error [6] 0.0% ??? [5] 0.0% ??? [98] 0.0% for-loop [93] 0.0% --------------------------------------------------------------------- debug-print [88] 100.0% [90] 560(2.1%) 560(2.1%) for-loop /home/ztatlock/herbie/src/debug.rkt:113:2 --------------------------------------------------------------------- for-loop [81] 2.4% loop [89] 97.6% [91] 16640(63.4%) 230(0.9%) ??? /home/ztatlock/herbie/src/programs.rkt:168:4 ??? [94] 95.8% real->bigfloat [95] 2.8% --------------------------------------------------------------------- append-map [48] 8.4% composed [97] 8.4% loop [89] 8.4% parse-loop50 [87] 12.4% simplify [86] 20.8% map [42] 41.6% [92] 402(1.5%) 202(0.8%) f37 ...t/collects/racket/match/compiler.rkt:499:40 map [42] 74.9% composed [97] 8.4% append-map [48] 8.4% --------------------------------------------------------------------- loop [89] 100.0% [93] 218(0.8%) 0(0.0%) for-loop ...ock/herbie/src/core/simplify.rkt:161:2 setfindf [96] 100.0% --------------------------------------------------------------------- ??? [91] 100.0% [94] 15948(60.7%) 0(0.0%) ??? ...acket/collects/racket/private/kw.rkt:400:14 ??? [98] 97.5% --------------------------------------------------------------------- ??? [91] 100.0% [95] 462(1.8%) 462(1.8%) real->bigfloat .../private/bigfloat/mpfr.rkt:451:0 --------------------------------------------------------------------- for-loop [93] 100.0% [96] 218(0.8%) 0(0.0%) setfindf ...e/ztatlock/herbie/src/common.rkt:173:0 for-loop [99] 100.0% --------------------------------------------------------------------- f37 [92] 100.0% [97] 202(0.8%) 0(0.0%) composed ...ollects/racket/private/list.rkt:321:16 f37 [92] 100.0% --------------------------------------------------------------------- loop [89] 1.3% ??? [94] 98.7% [98] 15746(60.0%) 14674(55.9%) ??? ...-racket/utils/simple-result-arrow.rkt:26:12 bfexp [100] 2.9% bfsub [102] 2.7% --------------------------------------------------------------------- setfindf [96] 100.0% [99] 218(0.8%) 0(0.0%) for-loop ...e/ztatlock/herbie/src/common.rkt:174:2 constant? [101] 100.0% --------------------------------------------------------------------- ??? [98] 100.0% [100] 452(1.7%) 230(0.9%) bfexp ...-lib/math/private/bigfloat/mpfr.rkt:616:4 ??? [103] 49.1% --------------------------------------------------------------------- for-loop [99] 49.5% match-e [35] 50.5% [101] 440(1.7%) 440(1.7%) constant? ...ck/herbie/src/syntax/syntax.rkt:221:0 --------------------------------------------------------------------- ??? [98] 100.0% [102] 418(1.6%) 0(0.0%) bfsub ...-lib/math/private/bigfloat/mpfr.rkt:819:4 ??? [103] 100.0% --------------------------------------------------------------------- bfexp [100] 34.7% bfsub [102] 65.3% [103] 640(2.4%) 640(2.4%) ??? .../share/racket/collects/ffi/unsafe.rkt:861:4 ---------------------------------------------------------------------