Profiling results ----------------- Total cpu time observed: 13340ms (out of 13580ms) Number of samples taken: 62 (once every 215ms) ======================================================================= Caller Idx Total Self Name+src Local% ms(pct) ms(pct) Callee ======================================================================= ??? [16] 100.0% [1] 12658(94.9%) 0(0.0%) profile-thunk14 ...t/pkgs/profile-lib/main.rkt:9:0 run [8] 100.0% ----------------------------------------------------------------------- simplify-alt [34] 4.1% ??? [16] 95.9% [2] 5440(40.8%) 0(0.0%) simplify ...lock/herbie/src/core/simplify.rkt:39:0 iterate-egraph!5 [17] 69.1% simplify-expr [11] 23.1% loop [13] 4.0% for-loop [14] 3.7% ----------------------------------------------------------------------- hash-ref! [72] 100.0% [3] 1440(10.8%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:392:23 for-loop [9] 100.0% ----------------------------------------------------------------------- hash-ref! [72] 100.0% [4] 1440(10.8%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:295:23 for-loop [10] 100.0% ----------------------------------------------------------------------- hash-ref! [72] 100.0% [5] 838(6.3%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:285:26 for-loop [12] 100.0% ----------------------------------------------------------------------- f16 [77] 100.0% [6] 202(1.5%) 0(0.0%) taylor-invert .../herbie/src/core/taylor.rkt:312:0 simplify [74] 100.0% ----------------------------------------------------------------------- hash-ref! [72] 100.0% [7] 198(1.5%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:483:23 for-loop [15] 100.0% ----------------------------------------------------------------------- profile-thunk14 [1] 100.0% [8] 12658(94.9%) 0(0.0%) run ...share/racket/pkgs/profile-lib/main.rkt:31:2 ??? [16] 100.0% ----------------------------------------------------------------------- ??? [3] 100.0% [9] 1440(10.8%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:396:33 for-loop [18] 100.0% ----------------------------------------------------------------------- ??? [4] 100.0% [10] 1440(10.8%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:298:27 hash-ref! [72] 100.0% ----------------------------------------------------------------------- simplify [2] 100.0% [11] 1258(9.4%) 0(0.0%) simplify-expr ...herbie/src/core/simplify.rkt:68:0 iterate-egraph!5 [17] 100.0% ----------------------------------------------------------------------- ??? [5] 100.0% [12] 838(6.3%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:285:52 hash-ref! [72] 100.0% ----------------------------------------------------------------------- simplify [2] 100.0% [13] 220(1.6%) 0(0.0%) loop ...tatlock/herbie/src/core/simplify.rkt:203:2 pass [19] 100.0% ----------------------------------------------------------------------- simplify [2] 100.0% [14] 202(1.5%) 0(0.0%) for-loop ...ock/herbie/src/core/simplify.rkt:61:12 iterate-egraph!5 [17] 100.0% ----------------------------------------------------------------------- ??? [7] 100.0% [15] 198(1.5%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:487:35 parse-loop50 [82] 100.0% ----------------------------------------------------------------------- for-loop [46] 13.3% run [8] 41.2% [16] 13340(100.0%) 0(0.0%) ??? ...lects/racket/private/more-scheme.rkt:261:28 profile-thunk14 [1] 41.2% run-improve58 [20] 31.5% loop [25] 13.9% simplify [2] 13.3% ----------------------------------------------------------------------- for-loop [14] 3.9% simplify-expr [11] 24.1% simplify [2] 72.0% [17] 5220(39.1%) 0(0.0%) iterate-egraph!5 ...bie/src/core/simplify.rkt:95:0 one-iter [21] 96.2% *simplify-rules* [23] 3.8% ----------------------------------------------------------------------- for-loop [9] 100.0% [18] 1440(10.8%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:398:39 hash-ref! [72] 100.0% ----------------------------------------------------------------------- loop [13] 100.0% [19] 220(1.6%) 0(0.0%) pass ...tatlock/herbie/src/core/simplify.rkt:193:2 for-loop [22] 100.0% ----------------------------------------------------------------------- ??? [16] 100.0% [20] 9864(73.9%) 0(0.0%) run-improve58 ...ock/herbie/src/mainloop.rkt:242:0 for-loop [24] 90.6% loop [25] 4.8% get-final-combination [28] 2.4% setup-prog [29] 2.3% ----------------------------------------------------------------------- iterate-egraph!5 [17] 100.0% [21] 5020(37.6%) 202(1.5%) one-iter ...ock/herbie/src/core/simplify.rkt:106:0 for-loop [26] 46.1% loop [27] 41.6% apply-match [31] 8.3% ----------------------------------------------------------------------- pass [19] 100.0% [22] 220(1.6%) 220(1.6%) for-loop ...ck/herbie/src/core/simplify.rkt:196:29 ----------------------------------------------------------------------- iterate-egraph!5 [17] 100.0% [23] 200(1.5%) 200(1.5%) *simplify-rules* ...bie/src/syntax/rules.rkt:300:0 ----------------------------------------------------------------------- run-improve58 [20] 100.0% [24] 8934(67.0%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:253:8 run-iter! [30] 100.0% ----------------------------------------------------------------------- run-improve58 [20] 12.0% ??? [16] 88.0% [25] 3948(29.6%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:122:2 make-exacts* [37] 53.2% loop [32] 40.7% loop [41] 6.1% ----------------------------------------------------------------------- for-loop [26] 50.0% one-iter [21] 50.0% [26] 2312(17.3%) 1064(8.0%) for-loop ...ck/herbie/src/core/simplify.rkt:116:12 for-loop [26] 50.0% match-e [39] 22.6% ??? [35] 4.4% ----------------------------------------------------------------------- one-iter [21] 100.0% [27] 2088(15.7%) 0(0.0%) loop ...cket/collects/racket/private/map.rkt:53:19 apply-match [31] 100.0% ----------------------------------------------------------------------- run-improve58 [20] 100.0% [28] 236(1.8%) 0(0.0%) get-final-combination ...ie/src/mainloop.rkt:269:0 extract-alt [33] 100.0% ----------------------------------------------------------------------- run-improve58 [20] 100.0% [29] 222(1.7%) 0(0.0%) setup-prog /home/ztatlock/herbie/src/glue.rkt:46:0 simplify-alt [34] 100.0% ----------------------------------------------------------------------- for-loop [24] 100.0% [30] 8934(67.0%) 0(0.0%) run-iter! ...tatlock/herbie/src/mainloop.rkt:223:0 simplify! [36] 58.4% gen-series! [38] 27.7% finalize-iter! [40] 13.9% ----------------------------------------------------------------------- one-iter [21] 16.7% loop [27] 83.3% [31] 2506(18.8%) 220(1.6%) apply-match .../herbie/src/core/simplify.rkt:122:2 merge-egraph-nodes! [42] 32.9% match-e [39] 23.9% update-leader! [49] 9.6% for-loop [44] 8.8% loop! [89] 8.1% substitute-e [45] 8.0% ----------------------------------------------------------------------- loop [25] 100.0% [32] 1606(12.0%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:93:2 loop [41] 43.0% make-exacts* [37] 42.6% eval-prog [69] 14.4% ----------------------------------------------------------------------- get-final-combination [28] 100.0% [33] 236(1.8%) 0(0.0%) extract-alt ...e/ztatlock/herbie/src/glue.rkt:57:0 loop [43] 100.0% ----------------------------------------------------------------------- setup-prog [29] 100.0% [34] 222(1.7%) 0(0.0%) simplify-alt .../ztatlock/herbie/src/glue.rkt:84:0 simplify [2] 100.0% ----------------------------------------------------------------------- for-loop [26] 100.0% [35] 202(1.5%) 202(1.5%) ??? /home/ztatlock/herbie/src/core/ematch.rkt:50:5 ----------------------------------------------------------------------- run-iter! [30] 100.0% [36] 5218(39.1%) 0(0.0%) simplify! ...tatlock/herbie/src/mainloop.rkt:162:0 for-loop [46] 100.0% ----------------------------------------------------------------------- loop [32] 24.6% loop [25] 75.4% [37] 2786(20.9%) 0(0.0%) make-exacts* ...tatlock/herbie/src/points.rkt:80:0 map [80] 67.4% loop [84] 32.6% ----------------------------------------------------------------------- run-iter! [30] 100.0% [38] 2474(18.5%) 0(0.0%) gen-series! ...tlock/herbie/src/mainloop.rkt:134:0 for-loop [47] 100.0% ----------------------------------------------------------------------- for-loop [56] 12.1% apply-match [31] 24.4% for-loop [26] 63.5% [39] 1646(12.3%) 1244(9.3%) match-e ...tatlock/herbie/src/core/ematch.rkt:46:0 for-loop [50] 24.4% loop [84] 6.1% ----------------------------------------------------------------------- run-iter! [30] 100.0% [40] 1242(9.3%) 0(0.0%) finalize-iter! ...ck/herbie/src/mainloop.rkt:177:0 ??? [48] 100.0% ----------------------------------------------------------------------- loop [25] 25.8% loop [32] 74.2% [41] 930(7.0%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:83:4 map [80] 100.0% ----------------------------------------------------------------------- merge-egraph-nodes! [42] 13.5% apply-match [31] 86.5% [42] 824(6.2%) 0(0.0%) merge-egraph-nodes! ...e/src/core/egraph.rkt:152:0 update-leader! [49] 62.0% loop! [89] 24.5% merge-egraph-nodes! [42] 13.5% ----------------------------------------------------------------------- extract-alt [33] 100.0% [43] 236(1.8%) 0(0.0%) loop /home/ztatlock/herbie/src/common.rkt:86:2 composed [52] 100.0% ----------------------------------------------------------------------- apply-match [31] 100.0% [44] 220(1.6%) 0(0.0%) for-loop ...ck/herbie/src/core/simplify.rkt:136:10 mk-enode! [51] 100.0% ----------------------------------------------------------------------- apply-match [31] 100.0% [45] 200(1.5%) 0(0.0%) substitute-e ...ck/herbie/src/core/ematch.rkt:71:0 mk-enode! [51] 100.0% ----------------------------------------------------------------------- simplify! [36] 100.0% [46] 5218(39.1%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:166:6 ??? [16] 100.0% ----------------------------------------------------------------------- gen-series! [38] 100.0% [47] 2474(18.5%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:140:7 taylor-alt [53] 100.0% ----------------------------------------------------------------------- finalize-iter! [40] 100.0% [48] 1242(9.3%) 0(0.0%) ??? ...contract/private/arrow-val-first.rkt:357:18 for-loop [54] 100.0% ----------------------------------------------------------------------- apply-match [31] 27.8% merge-egraph-nodes! [42] 72.2% [49] 862(6.5%) 0(0.0%) update-leader! ...herbie/src/core/egraph.rkt:217:0 for-loop [55] 100.0% ----------------------------------------------------------------------- match-e [39] 100.0% [50] 600(4.5%) 0(0.0%) for-loop ...tlock/herbie/src/core/ematch.rkt:59:11 for-loop [56] 100.0% ----------------------------------------------------------------------- substitute-e [45] 47.6% for-loop [44] 52.4% [51] 420(3.1%) 220(1.6%) mk-enode! ...lock/herbie/src/core/egraph.rkt:101:0 hash-has-key? [57] 47.6% ----------------------------------------------------------------------- loop [43] 100.0% [52] 236(1.8%) 0(0.0%) composed ...ollects/racket/private/list.rkt:321:16 errors [65] 100.0% ----------------------------------------------------------------------- for-loop [47] 100.0% [53] 2474(18.5%) 0(0.0%) taylor-alt ...e/ztatlock/herbie/src/glue.rkt:142:0 for-loop [58] 100.0% ----------------------------------------------------------------------- ??? [48] 100.0% [54] 1242(9.3%) 0(0.0%) for-loop ...ock/herbie/src/core/alt-table.rkt:51:2 atab-add-altn [59] 100.0% ----------------------------------------------------------------------- update-leader! [49] 100.0% [55] 862(6.5%) 0(0.0%) for-loop ...tlock/herbie/src/core/egraph.rkt:222:6 for-loop [60] 100.0% ----------------------------------------------------------------------- for-loop [50] 100.0% [56] 600(4.5%) 202(1.5%) for-loop ...tlock/herbie/src/core/ematch.rkt:65:37 match-e [39] 66.3% ----------------------------------------------------------------------- mk-enode! [51] 100.0% [57] 200(1.5%) 200(1.5%) hash-has-key? ...et/private/more-scheme.rkt:368:13 ----------------------------------------------------------------------- taylor-alt [53] 100.0% [58] 2474(18.5%) 0(0.0%) for-loop /home/ztatlock/herbie/src/glue.rkt:144:2 location-do [61] 100.0% ----------------------------------------------------------------------- for-loop [54] 100.0% [59] 1242(9.3%) 0(0.0%) atab-add-altn ...rbie/src/core/alt-table.rkt:208:0 best-and-tied-at-points [62] 82.3% loop [84] 17.7% ----------------------------------------------------------------------- for-loop [55] 100.0% [60] 862(6.5%) 0(0.0%) for-loop ...tlock/herbie/src/core/egraph.rkt:223:8 hash-update! [63] 100.0% ----------------------------------------------------------------------- for-loop [58] 43.2% location-do [61] 56.8% [61] 2474(18.5%) 0(0.0%) location-do ...tlock/herbie/src/programs.rkt:129:0 location-do [61] 56.8% approximate9 [64] 43.2% ----------------------------------------------------------------------- atab-add-altn [59] 100.0% [62] 1022(7.7%) 0(0.0%) best-and-tied-at-points ...ore/alt-table.rkt:122:0 errors [65] 80.4% for-loop [67] 19.6% ----------------------------------------------------------------------- for-loop [60] 100.0% [63] 862(6.5%) 0(0.0%) hash-update! ...ket/private/more-scheme.rkt:362:13 ??? [66] 100.0% ----------------------------------------------------------------------- location-do [61] 100.0% [64] 2474(18.5%) 0(0.0%) approximate9 ...ck/herbie/src/core/taylor.rkt:11:0 loop [68] 91.8% f16 [77] 8.2% ----------------------------------------------------------------------- composed [52] 22.3% best-and-tied-at-points [62] 77.7% [65] 1058(7.9%) 0(0.0%) errors /home/ztatlock/herbie/src/points.rkt:144:0 for-loop [71] 60.3% eval-prog [69] 39.7% ----------------------------------------------------------------------- hash-update! [63] 100.0% [66] 862(6.5%) 222(1.7%) ??? .../ztatlock/herbie/src/core/egraph.rkt:225:24 for-loop [70] 74.2% ----------------------------------------------------------------------- best-and-tied-at-points [62] 100.0% [67] 200(1.5%) 200(1.5%) for-loop ...k/herbie/src/core/alt-table.rkt:124:16 ----------------------------------------------------------------------- approximate9 [64] 100.0% [68] 2272(17.0%) 0(0.0%) loop ...e/ztatlock/herbie/src/core/taylor.rkt:82:4 hash-ref! [72] 100.0% ----------------------------------------------------------------------- loop [32] 35.6% errors [65] 64.4% [69] 652(4.9%) 420(3.1%) eval-prog ...tatlock/herbie/src/programs.rkt:162:0 hash-ref! [72] 35.6% ----------------------------------------------------------------------- ??? [66] 100.0% [70] 640(4.8%) 640(4.8%) for-loop ...lock/herbie/src/core/egraph.rkt:226:26 ----------------------------------------------------------------------- errors [65] 100.0% [71] 638(4.8%) 0(0.0%) for-loop ...e/ztatlock/herbie/src/points.rkt:147:4 ??? [88] 68.7% ulp-difference [73] 31.3% ----------------------------------------------------------------------- for-loop [87] 1.1% for-loop [12] 7.4% eval-prog [69] 9.3% for-loop [10] 12.7% for-loop [18] 13.8% ??? [75] 27.8% loop [68] 27.8% [72] 2504(18.8%) 0(0.0%) hash-ref! ...racket/private/more-scheme.rkt:373:13 ??? [75] 27.8% simplify [74] 27.8% ??? [3] 13.8% ??? [4] 12.7% bigfloat-hash [76] 9.3% ??? [5] 7.4% ??? [7] 1.1% ----------------------------------------------------------------------- for-loop [71] 100.0% [73] 200(1.5%) 0(0.0%) ulp-difference ...atlock/herbie/src/float.rkt:19:0 ??? [96] 100.0% ----------------------------------------------------------------------- taylor-invert [6] 8.2% hash-ref! [72] 91.8% [74] 2474(18.5%) 0(0.0%) simplify ...atlock/herbie/src/core/reduce.rkt:18:0 parse-loop50 [82] 58.2% f16 [77] 33.6% debug7 [79] 8.2% ----------------------------------------------------------------------- hash-ref! [72] 100.0% [75] 2272(17.0%) 0(0.0%) ??? ...e/ztatlock/herbie/src/core/taylor.rkt:42:15 hash-ref! [72] 100.0% ----------------------------------------------------------------------- hash-ref! [72] 100.0% [76] 232(1.7%) 0(0.0%) bigfloat-hash ...h/private/bigfloat/mpfr.rkt:165:0 bigfloat->sig+exp [78] 100.0% ----------------------------------------------------------------------- loop [84] 9.7% map [80] 9.8% f16 [77] 9.8% approximate9 [64] 9.8% simplify [74] 61.0% [77] 1034(7.8%) 200(1.5%) f16 ...t/collects/racket/match/compiler.rkt:499:40 map [80] 70.8% f16 [77] 9.8% taylor-invert [6] 9.8% ----------------------------------------------------------------------- bigfloat-hash [76] 100.0% [78] 232(1.7%) 232(1.7%) bigfloat->sig+exp ...ivate/bigfloat/mpfr.rkt:370:0 ----------------------------------------------------------------------- simplify [74] 100.0% [79] 202(1.5%) 0(0.0%) debug7 /home/ztatlock/herbie/src/debug.rkt:102:0 ??? [81] 100.0% ----------------------------------------------------------------------- parse-loop50 [82] 1.8% f16 [77] 21.0% loop [41] 25.5% make-exacts* [37] 51.6% [80] 3640(27.3%) 0(0.0%) map ...acket/collects/racket/private/map.rkt:21:13 loop [84] 77.1% parse-loop50 [82] 21.0% f16 [77] 1.8% ----------------------------------------------------------------------- debug7 [79] 100.0% [81] 202(1.5%) 0(0.0%) ??? ...racket/collects/racket/private/kw.rkt:713:9 ??? [83] 100.0% ----------------------------------------------------------------------- for-loop [15] 2.9% loop [84] 4.9% simplify [74] 17.1% map [80] 29.7% parse-loop50 [82] 45.5% [82] 2272(17.0%) 1852(13.9%) parse-loop50 ...s/racket/match/compiler.rkt:410:15 parse-loop50 [82] 45.5% loop [84] 13.7% map [80] 4.4% for-loop [87] 2.9% parse-app [85] 1.9% ----------------------------------------------------------------------- ??? [81] 100.0% [83] 202(1.5%) 0(0.0%) ??? ...s/racket/contract/private/arr-i.rkt:1233:27 ??? [86] 100.0% ----------------------------------------------------------------------- make-exacts* [37] 0.0% map [80] 0.7% atab-add-altn [59] 1.1% loop! [89] 2.4% match-e [39] 3.9% parse-loop50 [82] 7.9% loop [84] 83.9% [84] 5160(38.7%) 434(3.3%) loop ...cket/collects/racket/private/map.rkt:26:19 loop [84] 83.9% parse-loop50 [82] 6.0% loop! [89] 2.4% f16 [77] 1.9% loop [90] 1.1% ??? [88] 0.7% ->flonum [93] 0.0% ----------------------------------------------------------------------- parse-loop50 [82] 100.0% [85] 220(1.6%) 220(1.6%) parse-app .../collects/racket/private/kw.rkt:903:2 ----------------------------------------------------------------------- ??? [83] 100.0% [86] 202(1.5%) 202(1.5%) ??? ...ects/racket/contract/private/prop.rkt:252:4 ----------------------------------------------------------------------- parse-loop50 [82] 100.0% [87] 198(1.5%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:490:59 hash-ref! [72] 100.0% ----------------------------------------------------------------------- for-loop [71] 11.9% loop [84] 88.1% [88] 3682(27.6%) 688(5.2%) ??? /home/ztatlock/herbie/src/programs.rkt:168:4 ??? [91] 63.3% real->bigfloat [92] 12.5% ->flonum [93] 5.5% ----------------------------------------------------------------------- apply-match [31] 25.0% merge-egraph-nodes! [42] 25.0% loop [84] 50.0% [89] 404(3.0%) 202(1.5%) loop! .../ztatlock/herbie/src/core/enode.rkt:163:2 loop [84] 50.0% update-en-expr [94] 25.0% ----------------------------------------------------------------------- loop [84] 0.7% loop [90] 99.3% [90] 220(1.6%) 220(1.6%) loop ...ket/collects/racket/private/list.rkt:82:16 loop [90] 99.3% ----------------------------------------------------------------------- ??? [88] 100.0% [91] 2332(17.5%) 236(1.8%) ??? ...acket/collects/racket/private/kw.rkt:400:14 ??? [95] 79.5% ...higher-order.rkt:373:33 [97] 10.4% ----------------------------------------------------------------------- ??? [88] 100.0% [92] 460(3.4%) 220(1.6%) real->bigfloat .../private/bigfloat/mpfr.rkt:451:0 ??? [101] 52.2% ----------------------------------------------------------------------- ??? [88] 45.9% loop [84] 54.1% [93] 440(3.3%) 238(1.8%) ->flonum ...ock/herbie/src/syntax/syntax.rkt:224:0 ??? [96] 45.9% ----------------------------------------------------------------------- loop! [89] 100.0% [94] 202(1.5%) 202(1.5%) update-en-expr ...herbie/src/core/egraph.rkt:211:0 ----------------------------------------------------------------------- ??? [91] 100.0% [95] 1854(13.9%) 214(1.6%) ??? ...-racket/utils/simple-result-arrow.rkt:26:12 bfadd [98] 50.2% bfcbrt [99] 25.7% ??? [103] 12.6% ----------------------------------------------------------------------- ulp-difference [73] 49.8% ->flonum [93] 50.2% [96] 402(3.0%) 402(3.0%) ??? /home/ztatlock/herbie/src/config.rkt:29:0 ----------------------------------------------------------------------- ??? [91] 100.0% [97] 242(1.8%) 0(0.0%) ...higher-order.rkt:373:33 (unknown source) ??? [100] 100.0% ----------------------------------------------------------------------- ??? [95] 100.0% [98] 930(7.0%) 466(3.5%) bfadd ...-lib/math/private/bigfloat/mpfr.rkt:819:4 ??? [101] 49.9% ----------------------------------------------------------------------- ??? [95] 100.0% [99] 476(3.6%) 476(3.6%) bfcbrt ...lib/math/private/bigfloat/mpfr.rkt:616:4 ----------------------------------------------------------------------- ...higher-order.rkt:373:33 [97]100.0% [100] 242(1.8%) 0(0.0%) ??? ...cts/racket/contract/private/list.rkt:187:10 ??? [102] 100.0% ----------------------------------------------------------------------- real->bigfloat [92] 34.1% bfadd [98] 65.9% [101] 704(5.3%) 704(5.3%) ??? .../share/racket/collects/ffi/unsafe.rkt:861:4 ----------------------------------------------------------------------- ??? [100] 100.0% [102] 242(1.8%) 0(0.0%) ??? ...ects/racket/contract/private/guts.rkt:638:8 ??? [103] 100.0% ----------------------------------------------------------------------- ??? [95] 49.2% ??? [102] 50.8% [103] 476(3.6%) 476(3.6%) ??? ...tract/private/arrow-higher-order.rkt:373:33 -----------------------------------------------------------------------