Profiling results ----------------- Total cpu time observed: 19918ms (out of 20428ms) Number of samples taken: 85 (once every 234ms) ======================================================================= Caller Idx Total Self Name+src Local% ms(pct) ms(pct) Callee ======================================================================= ??? [29] 100.0% [1] 19918(100.0%) 0(0.0%) profile-thunk14 ...t/pkgs/profile-lib/main.rkt:9:0 run [6] 100.0% ----------------------------------------------------------------------- ??? [29] 100.0% [2] 8450(42.4%) 0(0.0%) run-improve58 ...ock/herbie/src/mainloop.rkt:242:0 for-loop [7] 90.1% get-final-combination [10] 5.2% loop [34] 4.7% ----------------------------------------------------------------------- loop [68] 6.4% ??? [29] 93.6% [3] 6930(34.8%) 0(0.0%) simplify ...lock/herbie/src/core/simplify.rkt:39:0 simplify-expr [8] 47.2% iterate-egraph!5 [13] 33.1% for-loop [9] 16.2% loop [11] 3.5% ----------------------------------------------------------------------- hash-ref! [81] 100.0% [4] 906(4.5%) 0(0.0%) ??? /home/ztatlock/herbie/src/programs.rkt:197:5 loop [68] 100.0% ----------------------------------------------------------------------- loop [68] 100.0% [5] 218(1.1%) 0(0.0%) ??? ...ket/collects/racket/private/list.rkt:323:18 hash-ref! [81] 100.0% ----------------------------------------------------------------------- profile-thunk14 [1] 100.0% [6] 19918(100.0%) 0(0.0%) run ...share/racket/pkgs/profile-lib/main.rkt:31:2 ??? [29] 100.0% ----------------------------------------------------------------------- run-improve58 [2] 100.0% [7] 7610(38.2%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:253:8 run-iter! [12] 100.0% ----------------------------------------------------------------------- simplify [3] 100.0% [8] 3272(16.4%) 0(0.0%) simplify-expr ...herbie/src/core/simplify.rkt:68:0 iterate-egraph!5 [13] 100.0% ----------------------------------------------------------------------- simplify [3] 100.0% [9] 1124(5.6%) 0(0.0%) for-loop ...ock/herbie/src/core/simplify.rkt:61:12 iterate-egraph!5 [13] 100.0% ----------------------------------------------------------------------- run-improve58 [2] 100.0% [10] 442(2.2%) 0(0.0%) get-final-combination ...ie/src/mainloop.rkt:269:0 extract-alt [14] 100.0% ----------------------------------------------------------------------- simplify [3] 100.0% [11] 242(1.2%) 0(0.0%) loop ...tatlock/herbie/src/core/simplify.rkt:203:2 pass [15] 100.0% ----------------------------------------------------------------------- for-loop [7] 100.0% [12] 7610(38.2%) 0(0.0%) run-iter! ...tatlock/herbie/src/mainloop.rkt:223:0 simplify! [17] 85.3% finalize-iter! [18] 6.1% choose-best-alt! [20] 2.9% gen-rewrites! [21] 2.9% localize-error [22] 2.9% ----------------------------------------------------------------------- for-loop [9] 16.8% simplify [3] 34.3% simplify-expr [8] 48.9% [13] 6688(33.6%) 0(0.0%) iterate-egraph!5 ...bie/src/core/simplify.rkt:95:0 one-iter [16] 100.0% ----------------------------------------------------------------------- get-final-combination [10] 100.0% [14] 442(2.2%) 0(0.0%) extract-alt ...e/ztatlock/herbie/src/glue.rkt:57:0 loop [68] 100.0% ----------------------------------------------------------------------- loop [11] 100.0% [15] 242(1.2%) 0(0.0%) pass ...tatlock/herbie/src/core/simplify.rkt:193:2 for-loop [19] 100.0% ----------------------------------------------------------------------- iterate-egraph!5 [13] 100.0% [16] 6688(33.6%) 0(0.0%) one-iter ...ock/herbie/src/core/simplify.rkt:106:0 for-loop [24] 54.3% loop [25] 45.7% ----------------------------------------------------------------------- run-iter! [12] 100.0% [17] 6488(32.6%) 0(0.0%) simplify! ...tatlock/herbie/src/mainloop.rkt:162:0 for-loop [23] 100.0% ----------------------------------------------------------------------- run-iter! [12] 100.0% [18] 464(2.3%) 0(0.0%) finalize-iter! ...ck/herbie/src/mainloop.rkt:177:0 ??? [26] 100.0% ----------------------------------------------------------------------- pass [15] 100.0% [19] 242(1.2%) 0(0.0%) for-loop ...ck/herbie/src/core/simplify.rkt:196:29 argmin [27] 100.0% ----------------------------------------------------------------------- run-iter! [12] 100.0% [20] 220(1.1%) 0(0.0%) choose-best-alt! .../herbie/src/mainloop.rkt:120:0 ??? [26] 100.0% ----------------------------------------------------------------------- run-iter! [12] 100.0% [21] 220(1.1%) 0(0.0%) gen-rewrites! ...ock/herbie/src/mainloop.rkt:148:0 for-loop [28] 100.0% ----------------------------------------------------------------------- run-iter! [12] 100.0% [22] 218(1.1%) 0(0.0%) localize-error ...erbie/src/core/localize.rkt:47:0 hash-ref! [81] 100.0% ----------------------------------------------------------------------- simplify! [17] 100.0% [23] 6488(32.6%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:166:6 ??? [29] 100.0% ----------------------------------------------------------------------- for-loop [24] 50.0% one-iter [16] 50.0% [24] 3630(18.2%) 662(3.3%) for-loop ...ck/herbie/src/core/simplify.rkt:116:12 for-loop [24] 50.0% match-e [35] 40.9% ----------------------------------------------------------------------- one-iter [16] 100.0% [25] 3058(15.4%) 222(1.1%) loop ...cket/collects/racket/private/map.rkt:53:19 apply-match [30] 92.7% ----------------------------------------------------------------------- choose-best-alt! [20] 32.2% finalize-iter! [18] 67.8% [26] 684(3.4%) 0(0.0%) ??? ...contract/private/arrow-val-first.rkt:357:18 for-loop [31] 67.8% atab-pick-alt8 [32] 32.2% ----------------------------------------------------------------------- for-loop [19] 100.0% [27] 242(1.2%) 242(1.2%) argmin ...re/racket/collects/racket/list.rkt:743:0 ----------------------------------------------------------------------- gen-rewrites! [21] 100.0% [28] 220(1.1%) 0(0.0%) for-loop ...tatlock/herbie/src/mainloop.rkt:153:11 ??? [33] 100.0% ----------------------------------------------------------------------- for-loop [23] 10.9% run [6] 44.6% [29] 19918(100.0%) 0(0.0%) ??? ...lects/racket/private/more-scheme.rkt:261:28 profile-thunk14 [1] 44.6% loop [34] 28.8% run-improve58 [2] 15.8% simplify [3] 10.9% ----------------------------------------------------------------------- loop [25] 100.0% [30] 2836(14.2%) 0(0.0%) apply-match .../herbie/src/core/simplify.rkt:122:2 match-e [35] 31.2% for-loop [36] 23.4% merge-egraph-nodes! [42] 15.7% loop! [76] 14.9% substitute-e [43] 14.8% ----------------------------------------------------------------------- ??? [26] 100.0% [31] 464(2.3%) 0(0.0%) for-loop ...ock/herbie/src/core/alt-table.rkt:51:2 atab-add-altn [37] 100.0% ----------------------------------------------------------------------- ??? [26] 100.0% [32] 220(1.1%) 0(0.0%) atab-pick-alt8 ...rbie/src/core/alt-table.rkt:54:0 ??? [39] 100.0% ----------------------------------------------------------------------- for-loop [28] 100.0% [33] 220(1.1%) 0(0.0%) ??? /home/ztatlock/herbie/src/alternative.rkt:90:0 rewriter [38] 100.0% ----------------------------------------------------------------------- run-improve58 [2] 3.4% ??? [29] 96.6% [34] 11866(59.6%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:122:2 loop [40] 50.4% make-exacts* [49] 33.6% loop [50] 16.0% ----------------------------------------------------------------------- for-loop [51] 13.8% apply-match [30] 17.3% for-loop [24] 68.9% [35] 3854(19.3%) 1928(9.7%) match-e ...tatlock/herbie/src/core/ematch.rkt:46:0 for-loop [41] 47.1% for-loop [51] 5.7% constant? [48] 2.6% ----------------------------------------------------------------------- apply-match [30] 100.0% [36] 664(3.3%) 0(0.0%) for-loop ...ck/herbie/src/core/simplify.rkt:136:10 merge-egraph-nodes! [42] 69.6% substitute-e [43] 30.4% ----------------------------------------------------------------------- for-loop [31] 100.0% [37] 464(2.3%) 0(0.0%) atab-add-altn ...rbie/src/core/alt-table.rkt:208:0 best-and-tied-at-points [44] 52.2% override-at-pnts [45] 47.8% ----------------------------------------------------------------------- matcher [58] 50.0% ??? [33] 50.0% [38] 220(1.1%) 220(1.1%) rewriter ...lock/herbie/src/core/matcher.rkt:123:2 for-loop [46] 50.0% ----------------------------------------------------------------------- atab-pick-alt8 [32] 100.0% [39] 220(1.1%) 0(0.0%) ??? ...tract/private/arrow-higher-order.rkt:369:33 best-alt [47] 100.0% ----------------------------------------------------------------------- loop [34] 100.0% [40] 5986(30.1%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:93:2 loop [50] 47.8% make-exacts* [49] 44.2% select-every [54] 4.7% eval-prog [73] 3.3% ----------------------------------------------------------------------- match-e [35] 100.0% [41] 2148(10.8%) 1262(6.3%) for-loop ...tlock/herbie/src/core/ematch.rkt:59:11 for-loop [51] 35.6% loop [68] 10.3% ----------------------------------------------------------------------- apply-match [30] 49.0% for-loop [36] 51.0% [42] 906(4.5%) 0(0.0%) merge-egraph-nodes! ...e/src/core/egraph.rkt:152:0 update-leader! [52] 49.0% enode-merge! [55] 26.5% for-loop [56] 24.5% ----------------------------------------------------------------------- substitute-e [43] 16.2% for-loop [36] 16.2% apply-match [30] 67.5% [43] 622(3.1%) 202(1.0%) substitute-e ...ck/herbie/src/core/ematch.rkt:71:0 mk-enode! [53] 67.5% substitute-e [43] 16.2% ----------------------------------------------------------------------- atab-add-altn [37] 100.0% [44] 242(1.2%) 0(0.0%) best-and-tied-at-points ...ore/alt-table.rkt:122:0 errors [69] 100.0% ----------------------------------------------------------------------- atab-add-altn [37] 100.0% [45] 222(1.1%) 0(0.0%) override-at-pnts ...e/src/core/alt-table.rkt:145:0 for-loop [57] 100.0% ----------------------------------------------------------------------- rewriter [38] 100.0% [46] 220(1.1%) 0(0.0%) for-loop ...ock/herbie/src/core/matcher.rkt:126:10 matcher [58] 100.0% ----------------------------------------------------------------------- ??? [39] 100.0% [47] 220(1.1%) 0(0.0%) best-alt /home/ztatlock/herbie/src/glue.rkt:79:0 argmins [59] 100.0% ----------------------------------------------------------------------- match-e [35] 100.0% [48] 200(1.0%) 200(1.0%) constant? ...ck/herbie/src/syntax/syntax.rkt:221:0 ----------------------------------------------------------------------- loop [40] 39.9% loop [34] 60.1% [49] 6634(33.3%) 0(0.0%) make-exacts* ...tatlock/herbie/src/points.rkt:80:0 loop [68] 52.0% map [60] 34.1% eval-prog [73] 13.9% ----------------------------------------------------------------------- loop [34] 39.8% loop [40] 60.2% [50] 4754(23.9%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:83:4 map [60] 100.0% ----------------------------------------------------------------------- match-e [35] 30.2% for-loop [41] 69.8% [51] 1064(5.3%) 242(1.2%) for-loop ...tlock/herbie/src/core/ematch.rkt:65:37 match-e [35] 88.6% ----------------------------------------------------------------------- merge-egraph-nodes! [42] 100.0% [52] 444(2.2%) 0(0.0%) update-leader! ...herbie/src/core/egraph.rkt:217:0 for-loop [61] 100.0% ----------------------------------------------------------------------- substitute-e [43] 100.0% [53] 420(2.1%) 200(1.0%) mk-enode! ...lock/herbie/src/core/egraph.rkt:101:0 hash-has-key? [65] 52.4% ----------------------------------------------------------------------- loop [40] 100.0% [54] 280(1.4%) 0(0.0%) select-every ...tatlock/herbie/src/points.rkt:71:0 loop [62] 100.0% ----------------------------------------------------------------------- merge-egraph-nodes! [42] 100.0% [55] 240(1.2%) 0(0.0%) enode-merge! ...ck/herbie/src/core/enode.rkt:100:0 adopt-enode! [63] 100.0% ----------------------------------------------------------------------- merge-egraph-nodes! [42] 100.0% [56] 222(1.1%) 222(1.1%) for-loop ...tlock/herbie/src/core/egraph.rkt:232:6 ----------------------------------------------------------------------- override-at-pnts [45] 100.0% [57] 222(1.1%) 0(0.0%) for-loop ...k/herbie/src/core/alt-table.rkt:146:43 ??? [64] 100.0% ----------------------------------------------------------------------- for-loop [66] 50.0% for-loop [46] 50.0% [58] 220(1.1%) 0(0.0%) matcher ...tlock/herbie/src/core/matcher.rkt:159:2 for-loop [66] 50.0% rewriter [38] 50.0% ----------------------------------------------------------------------- best-alt [47] 100.0% [59] 220(1.1%) 0(0.0%) argmins /home/ztatlock/herbie/src/common.rkt:85:0 composed [67] 100.0% ----------------------------------------------------------------------- f6 [93] 3.0% make-exacts* [49] 31.3% loop [50] 65.7% [60] 7234(36.3%) 0(0.0%) map ...acket/collects/racket/private/map.rkt:21:13 loop [68] 100.0% ----------------------------------------------------------------------- update-leader! [52] 100.0% [61] 444(2.2%) 0(0.0%) for-loop ...tlock/herbie/src/core/egraph.rkt:222:6 for-loop [70] 100.0% ----------------------------------------------------------------------- select-every [54] 0.1% loop [62] 99.9% [62] 280(1.4%) 280(1.4%) loop /home/ztatlock/herbie/src/points.rkt:72:2 loop [62] 99.9% ----------------------------------------------------------------------- enode-merge! [55] 100.0% [63] 240(1.2%) 0(0.0%) adopt-enode! ...ock/herbie/src/core/enode.rkt:76:0 custom-set-union [71] 100.0% ----------------------------------------------------------------------- for-loop [57] 100.0% [64] 222(1.1%) 222(1.1%) ??? ...ket/collects/racket/private/for.rkt:1150:14 ----------------------------------------------------------------------- mk-enode! [53] 100.0% [65] 220(1.1%) 220(1.1%) hash-has-key? ...et/private/more-scheme.rkt:368:13 ----------------------------------------------------------------------- matcher [58] 100.0% [66] 220(1.1%) 0(0.0%) for-loop ...ock/herbie/src/core/matcher.rkt:175:21 matcher [58] 100.0% ----------------------------------------------------------------------- argmins [59] 100.0% [67] 220(1.1%) 0(0.0%) composed ...ollects/racket/private/list.rkt:321:16 errors [69] 100.0% ----------------------------------------------------------------------- parse-loop12 [94] 0.0% make-exacts* [49] 0.2% for-loop [41] 0.4% extract-alt [14] 1.3% loop! [76] 3.4% map [60] 4.3% ??? [4] 7.3% loop [68] 83.0% [68] 12454(62.5%) 476(2.4%) loop ...cket/collects/racket/private/map.rkt:26:19 loop [68] 83.0% hash-ref! [81] 7.3% ??? [72] 4.4% loop! [76] 3.4% simplify [3] 1.3% loop [78] 0.4% ??? [5] 0.0% ??? [95] 0.0% ->flonum [74] 0.0% ----------------------------------------------------------------------- composed [67] 47.6% best-and-tied-at-points [44] 52.4% [69] 462(2.3%) 0(0.0%) errors /home/ztatlock/herbie/src/points.rkt:144:0 eval-prog [73] 100.0% ----------------------------------------------------------------------- for-loop [61] 100.0% [70] 444(2.2%) 0(0.0%) for-loop ...tlock/herbie/src/core/egraph.rkt:223:8 hash-update! [75] 100.0% ----------------------------------------------------------------------- adopt-enode! [63] 100.0% [71] 240(1.2%) 0(0.0%) custom-set-union ...et/private/set-types.rkt:168:0 for-loop [77] 100.0% ----------------------------------------------------------------------- loop [68] 100.0% [72] 9530(47.8%) 216(1.1%) ??? /home/ztatlock/herbie/src/programs.rkt:168:4 ??? [79] 76.3% real->bigfloat [80] 19.3% ??? [99] 2.1% ----------------------------------------------------------------------- loop [40] 12.5% errors [69] 29.2% make-exacts* [49] 58.3% [73] 1582(7.9%) 246(1.2%) eval-prog ...tatlock/herbie/src/programs.rkt:162:0 hash-ref! [81] 70.5% inductor [84] 13.9% ----------------------------------------------------------------------- loop [68] 100.0% [74] 460(2.3%) 216(1.1%) ->flonum ...ock/herbie/src/syntax/syntax.rkt:224:0 ??? [102] 53.0% ----------------------------------------------------------------------- for-loop [70] 100.0% [75] 444(2.2%) 0(0.0%) hash-update! ...ket/private/more-scheme.rkt:362:13 ??? [82] 100.0% ----------------------------------------------------------------------- loop [68] 50.0% apply-match [30] 50.0% [76] 422(2.1%) 0(0.0%) loop! .../ztatlock/herbie/src/core/enode.rkt:163:2 loop [68] 50.0% update-en-expr [85] 26.1% set [86] 23.9% ----------------------------------------------------------------------- custom-set-union [71] 100.0% [77] 240(1.2%) 0(0.0%) for-loop ...cts/racket/private/set-types.rkt:174:3 for-loop [83] 100.0% ----------------------------------------------------------------------- loop [68] 100.0% [78] 222(1.1%) 222(1.1%) loop ...e/racket/collects/racket/function.rkt:53:6 ----------------------------------------------------------------------- ??? [72] 100.0% [79] 7276(36.5%) 0(0.0%) ??? ...acket/collects/racket/private/kw.rkt:400:14 ??? [95] 70.0% ...higher-order.rkt:369:33 [88] 11.8% ...higher-order.rkt:373:33 [89] 9.5% bf* [91] 5.7% bf< [92] 3.0% ----------------------------------------------------------------------- ??? [72] 100.0% [80] 1842(9.2%) 1626(8.2%) real->bigfloat .../private/bigfloat/mpfr.rkt:451:0 ??? [103] 11.7% ----------------------------------------------------------------------- ??? [5] 8.2% localize-error [22] 8.2% eval-prog [73] 35.7% loop [68] 48.0% [81] 1334(6.7%) 242(1.2%) hash-ref! ...racket/private/more-scheme.rkt:373:13 ??? [4] 48.0% bigfloat-hash [87] 29.6% parse-loop12 [94] 8.2% f6 [93] 8.2% ----------------------------------------------------------------------- hash-update! [75] 100.0% [82] 444(2.2%) 0(0.0%) ??? .../ztatlock/herbie/src/core/egraph.rkt:225:24 for-loop [90] 100.0% ----------------------------------------------------------------------- for-loop [77] 100.0% [83] 240(1.2%) 240(1.2%) for-loop ...cts/racket/private/set-types.rkt:178:5 ----------------------------------------------------------------------- inductor [84] 50.0% eval-prog [73] 50.0% [84] 220(1.1%) 220(1.1%) inductor .../ztatlock/herbie/src/programs.rkt:73:2 inductor [84] 50.0% ----------------------------------------------------------------------- loop! [76] 100.0% [85] 220(1.1%) 220(1.1%) update-en-expr ...herbie/src/core/egraph.rkt:211:0 ----------------------------------------------------------------------- loop! [76] 100.0% [86] 202(1.0%) 202(1.0%) set ...collects/racket/private/set-types.rkt:982:0 ----------------------------------------------------------------------- hash-ref! [81] 100.0% [87] 874(4.4%) 0(0.0%) bigfloat-hash ...h/private/bigfloat/mpfr.rkt:165:0 sig+exp->bigfloat [97] 51.3% bfcanonicalize [98] 48.7% ----------------------------------------------------------------------- ??? [79] 100.0% [88] 858(4.3%) 0(0.0%) ...higher-order.rkt:369:33 (unknown source) ??? [99] 73.7% ??? [96] 26.3% ----------------------------------------------------------------------- ??? [79] 100.0% [89] 692(3.5%) 0(0.0%) ...higher-order.rkt:373:33 (unknown source) ??? [96] 71.4% ??? [99] 28.6% ----------------------------------------------------------------------- ??? [82] 100.0% [90] 444(2.2%) 444(2.2%) for-loop ...lock/herbie/src/core/egraph.rkt:226:26 ----------------------------------------------------------------------- ??? [79] 100.0% [91] 416(2.1%) 0(0.0%) bf* ...ath/private/bigfloat/bigfloat-mpfr.rkt:95:0 ??? [95] 100.0% ----------------------------------------------------------------------- ??? [79] 100.0% [92] 218(1.1%) 0(0.0%) bf< ...th/private/bigfloat/bigfloat-mpfr.rkt:127:4 ??? [102] 100.0% ----------------------------------------------------------------------- hash-ref! [81] 100.0% [93] 218(1.1%) 0(0.0%) f6 ...et/collects/racket/match/compiler.rkt:499:40 map [60] 100.0% ----------------------------------------------------------------------- hash-ref! [81] 100.0% [94] 218(1.1%) 0(0.0%) parse-loop12 ...s/racket/match/compiler.rkt:410:15 loop [68] 100.0% ----------------------------------------------------------------------- loop [68] 3.8% bf* [91] 7.3% ??? [79] 88.9% [95] 5726(28.7%) 1808(9.1%) ??? ...-racket/utils/simple-result-arrow.rkt:26:12 ??? [102] 24.6% bfadd [100] 23.8% bflog [101] 20.1% ----------------------------------------------------------------------- ...higher-order.rkt:369:33 [88] 31.4% ...higher-order.rkt:373:33 [89] 68.6% [96] 720(3.6%) 0(0.0%) ??? ...cts/racket/contract/private/list.rkt:187:10 ??? [99] 100.0% ----------------------------------------------------------------------- bigfloat-hash [87] 100.0% [97] 448(2.2%) 448(2.2%) sig+exp->bigfloat ...ivate/bigfloat/mpfr.rkt:385:0 ----------------------------------------------------------------------- bigfloat-hash [87] 100.0% [98] 426(2.1%) 426(2.1%) bfcanonicalize .../private/bigfloat/mpfr.rkt:155:0 ----------------------------------------------------------------------- ??? [72] 11.2% ...higher-order.rkt:373:33 [89] 11.3% ...higher-order.rkt:369:33 [88] 36.2% ??? [96] 41.2% [99] 1746(8.8%) 0(0.0%) ??? ...ects/racket/contract/private/guts.rkt:638:8 ??? [102] 100.0% ----------------------------------------------------------------------- ??? [95] 100.0% [100] 1362(6.8%) 676(3.4%) bfadd ...-lib/math/private/bigfloat/mpfr.rkt:819:4 ??? [103] 50.4% ----------------------------------------------------------------------- ??? [95] 100.0% [101] 1150(5.8%) 488(2.5%) bflog ...-lib/math/private/bigfloat/mpfr.rkt:616:4 ??? [103] 57.6% ----------------------------------------------------------------------- bf< [92] 6.0% ->flonum [74] 6.8% ??? [95] 38.9% ??? [99] 48.3% [102] 3614(18.1%) 2944(14.8%) ??? ...tract/private/arrow-higher-order.rkt:373:33 ??? [104] 18.5% ----------------------------------------------------------------------- real->bigfloat [80] 13.8% bflog [101] 42.3% bfadd [100] 43.9% [103] 1564(7.9%) 1564(7.9%) ??? .../share/racket/collects/ffi/unsafe.rkt:861:4 ----------------------------------------------------------------------- ??? [102] 100.0% [104] 670(3.4%) 670(3.4%) ??? ...llects/racket/contract/combinator.rkt:178:4 -----------------------------------------------------------------------