Profiling results ----------------- Total cpu time observed: 49212ms (out of 49936ms) Number of samples taken: 209 (once every 235ms) (Hiding functions with self<1.0% and local<2.0%: 1 of 101 hidden) ========================================================================= Caller Idx Total Self Name+src Local% ms(pct) ms(pct) Callee ========================================================================= ??? [15] 100.0% [1] 48364(98.3%) 0(0.0%) profile-thunk14 ...t/pkgs/profile-lib/main.rkt:9:0 run [8] 100.0% ------------------------------------------------------------------------- location-do [55] 100.0% [2] 3108(6.3%) 0(0.0%) approximate9 ...ck/herbie/src/core/taylor.rkt:11:0 loop [9] 92.9% f6 [67] 7.1% ------------------------------------------------------------------------- hash-ref! [60] 100.0% [3] 2266(4.6%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:295:23 for-loop [10] 100.0% ------------------------------------------------------------------------- hash-ref! [60] 100.0% [4] 1240(2.5%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:483:23 for-loop [11] 100.0% ------------------------------------------------------------------------- hash-ref! [60] 100.0% [5] 1238(2.5%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:392:23 for-loop [12] 100.0% ------------------------------------------------------------------------- hash-ref! [60] 100.0% [6] 804(1.6%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:338:33 for-loop [14] 50.0% hash-ref! [60] 50.0% ------------------------------------------------------------------------- hash-ref! [60] 100.0% [7] 804(1.6%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:285:26 for-loop [13] 100.0% ------------------------------------------------------------------------- profile-thunk14 [1] 99.6% [8] 48560(98.7%) 0(0.0%) run ...share/racket/pkgs/profile-lib/main.rkt:31:2 ??? [15] 100.0% ------------------------------------------------------------------------- approximate9 [2] 100.0% [9] 2886(5.9%) 0(0.0%) loop ...e/ztatlock/herbie/src/core/taylor.rkt:82:4 hash-ref! [60] 100.0% ------------------------------------------------------------------------- ??? [3] 100.0% [10] 2266(4.6%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:298:27 hash-ref! [60] 90.3% simplify [16] 9.7% ------------------------------------------------------------------------- ??? [4] 100.0% [11] 1240(2.5%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:487:35 parse-loop12 [44] 100.0% ------------------------------------------------------------------------- ??? [5] 100.0% [12] 1238(2.5%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:396:33 for-loop [17] 100.0% ------------------------------------------------------------------------- ??? [7] 100.0% [13] 804(1.6%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:285:52 hash-ref! [60] 75.1% ??? [18] 24.9% ------------------------------------------------------------------------- ??? [6] 100.0% [14] 402(0.8%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:341:46 hash-ref! [60] 100.0% ------------------------------------------------------------------------- for-loop [41] 0.8% run [8] 49.3% [15] 49212(100.0%) 0(0.0%) ??? ...lects/racket/private/more-scheme.rkt:261:28 profile-thunk14 [1] 48.9% loop [22] 40.5% run-improve58 [19] 9.9% simplify [20] 0.8% ------------------------------------------------------------------------- for-loop [10] 7.6% taylor-invert [74] 7.6% hash-ref! [60] 84.8% [16] 2910(5.9%) 0(0.0%) simplify ...atlock/herbie/src/core/reduce.rkt:18:0 parse-loop12 [44] 64.3% f6 [67] 28.2% debug7 [21] 7.6% ------------------------------------------------------------------------- for-loop [12] 100.0% [17] 1238(2.5%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:398:39 hash-ref! [60] 100.0% ------------------------------------------------------------------------- for-loop [13] 100.0% [18] 200(0.4%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:288:19 hash-ref! [60] 100.0% ------------------------------------------------------------------------- ??? [15] 100.0% [19] 9592(19.5%) 0(0.0%) run-improve58 ...ock/herbie/src/mainloop.rkt:242:0 for-loop [23] 58.5% get-final-combination [24] 33.3% loop [22] 8.2% ------------------------------------------------------------------------- ??? [15] 100.0% [20] 1046(2.1%) 0(0.0%) simplify ...lock/herbie/src/core/simplify.rkt:39:0 iterate-egraph!5 [30] 61.4% for-loop [25] 19.3% simplify-expr [26] 19.3% ------------------------------------------------------------------------- simplify [16] 100.0% [21] 220(0.4%) 220(0.4%) debug7 /home/ztatlock/herbie/src/debug.rkt:102:0 ------------------------------------------------------------------------- run-improve58 [19] 1.9% ??? [15] 98.1% [22] 40406(82.1%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:122:2 loop [27] 46.7% make-exacts* [31] 42.7% loop [32] 10.6% ------------------------------------------------------------------------- run-improve58 [19] 100.0% [23] 5614(11.4%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:253:8 run-iter! [28] 100.0% ------------------------------------------------------------------------- run-improve58 [19] 100.0% [24] 3192(6.5%) 0(0.0%) get-final-combination ...ie/src/mainloop.rkt:269:0 split-table [29] 100.0% ------------------------------------------------------------------------- simplify [20] 100.0% [25] 202(0.4%) 0(0.0%) for-loop ...ock/herbie/src/core/simplify.rkt:61:12 iterate-egraph!5 [30] 100.0% ------------------------------------------------------------------------- simplify [20] 100.0% [26] 202(0.4%) 0(0.0%) simplify-expr ...herbie/src/core/simplify.rkt:68:0 iterate-egraph!5 [30] 100.0% ------------------------------------------------------------------------- loop [22] 100.0% [27] 18862(38.3%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:93:2 loop [32] 60.3% make-exacts* [31] 38.4% eval-prog [87] 1.3% ------------------------------------------------------------------------- for-loop [23] 100.0% [28] 5614(11.4%) 0(0.0%) run-iter! ...tatlock/herbie/src/mainloop.rkt:223:0 gen-series! [34] 55.4% simplify! [36] 18.6% finalize-iter! [37] 15.0% localize-error [38] 11.0% ------------------------------------------------------------------------- get-final-combination [24] 100.0% [29] 3192(6.5%) 0(0.0%) split-table .../ztatlock/herbie/src/glue.rkt:171:0 infer-splitpoints4 [33] 100.0% ------------------------------------------------------------------------- simplify-expr [26] 19.3% for-loop [25] 19.3% simplify [20] 61.4% [30] 1046(2.1%) 0(0.0%) iterate-egraph!5 ...bie/src/core/simplify.rkt:95:0 one-iter [35] 100.0% ------------------------------------------------------------------------- loop [27] 29.5% loop [22] 70.5% [31] 24502(49.8%) 0(0.0%) make-exacts* ...tatlock/herbie/src/points.rkt:80:0 map [39] 55.6% loop [48] 44.4% ------------------------------------------------------------------------- loop [22] 27.3% loop [27] 72.7% [32] 15658(31.8%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:83:4 map [39] 95.4% loop [48] 4.6% ------------------------------------------------------------------------- split-table [29] 100.0% [33] 3192(6.5%) 0(0.0%) infer-splitpoints4 ...ie/src/core/regimes.rkt:19:0 option-on-expr [54] 73.7% loop [48] 26.3% ------------------------------------------------------------------------- run-iter! [28] 100.0% [34] 3108(6.3%) 0(0.0%) gen-series! ...tlock/herbie/src/mainloop.rkt:134:0 for-loop [40] 100.0% ------------------------------------------------------------------------- iterate-egraph!5 [30] 100.0% [35] 1046(2.1%) 222(0.5%) one-iter ...ock/herbie/src/core/simplify.rkt:106:0 for-loop [43] 78.8% ------------------------------------------------------------------------- run-iter! [28] 100.0% [36] 1046(2.1%) 0(0.0%) simplify! ...tatlock/herbie/src/mainloop.rkt:162:0 for-loop [41] 100.0% ------------------------------------------------------------------------- run-iter! [28] 100.0% [37] 842(1.7%) 0(0.0%) finalize-iter! ...ck/herbie/src/mainloop.rkt:177:0 ??? [42] 100.0% ------------------------------------------------------------------------- run-iter! [28] 100.0% [38] 618(1.3%) 0(0.0%) localize-error ...erbie/src/core/localize.rkt:47:0 hash-ref! [60] 100.0% ------------------------------------------------------------------------- parse-loop12 [44] 0.7% f6 [67] 4.1% make-exacts* [31] 45.4% loop [32] 49.8% [39] 30002(61.0%) 0(0.0%) map ...acket/collects/racket/private/map.rkt:21:13 loop [48] 94.6% parse-loop12 [44] 2.1% ??? [71] 1.4% f6 [67] 1.3% ??? [57] 0.7% ------------------------------------------------------------------------- gen-series! [34] 100.0% [40] 3108(6.3%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:140:7 taylor-alt [45] 100.0% ------------------------------------------------------------------------- simplify! [36] 100.0% [41] 1046(2.1%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:166:6 ??? [15] 100.0% ------------------------------------------------------------------------- finalize-iter! [37] 100.0% [42] 842(1.7%) 0(0.0%) ??? ...contract/private/arrow-val-first.rkt:357:18 for-loop [46] 100.0% ------------------------------------------------------------------------- for-loop [43] 50.0% one-iter [35] 50.0% [43] 824(1.7%) 202(0.4%) for-loop ...ck/herbie/src/core/simplify.rkt:116:12 for-loop [43] 50.0% match-e [47] 37.7% ------------------------------------------------------------------------- loop [48] 7.4% map [39] 11.2% parse-loop12 [44] 14.4% hash-ref! [60] 18.6% for-loop [11] 19.0% simplify [16] 29.4% [44] 3328(6.8%) 1670(3.4%) parse-loop12 ...s/racket/match/compiler.rkt:410:15 loop [48] 32.7% for-loop [50] 19.0% parse-loop12 [44] 14.4% f6 [67] 3.0% map [39] 3.0% loop [53] 2.9% ------------------------------------------------------------------------- for-loop [40] 100.0% [45] 3108(6.3%) 0(0.0%) taylor-alt ...e/ztatlock/herbie/src/glue.rkt:142:0 for-loop [49] 100.0% ------------------------------------------------------------------------- ??? [42] 100.0% [46] 842(1.7%) 0(0.0%) for-loop ...ock/herbie/src/core/alt-table.rkt:51:2 atab-add-altn [51] 100.0% ------------------------------------------------------------------------- for-loop [43] 100.0% [47] 622(1.3%) 422(0.9%) match-e ...tatlock/herbie/src/core/ematch.rkt:46:0 for-loop [52] 32.2% ------------------------------------------------------------------------- loop [32] 0.0% make-exacts* [31] 1.5% infer-splitpoints4 [33] 2.0% map [39] 2.2% parse-loop12 [44] 3.2% loop [48] 91.2% [48] 42446(86.3%) 0(0.0%) loop ...cket/collects/racket/private/map.rkt:26:19 loop [48] 91.2% ??? [71] 3.7% option-on-expr [54] 2.0% parse-loop12 [44] 1.7% f6 [67] 0.5% ??? [57] 0.5% make-multiplication-node [59] 0.5% ??? [86] 0.0% ->flonum [88] 0.0% ------------------------------------------------------------------------- taylor-alt [45] 100.0% [49] 3108(6.3%) 0(0.0%) for-loop /home/ztatlock/herbie/src/glue.rkt:144:2 location-do [55] 100.0% ------------------------------------------------------------------------- parse-loop12 [44] 100.0% [50] 1240(2.5%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:490:59 hash-ref! [60] 84.0% ??? [57] 16.0% ------------------------------------------------------------------------- for-loop [46] 100.0% [51] 842(1.7%) 0(0.0%) atab-add-altn ...rbie/src/core/alt-table.rkt:208:0 best-and-tied-at-points [56] 100.0% ------------------------------------------------------------------------- match-e [47] 100.0% [52] 200(0.4%) 0(0.0%) for-loop ...tlock/herbie/src/core/ematch.rkt:65:37 ??? [58] 100.0% ------------------------------------------------------------------------- parse-loop12 [44] 6.2% loop [53] 93.8% [53] 196(0.4%) 0(0.0%) loop ...cket/collects/racket/private/map.rkt:37:19 loop [53] 93.8% ->flonum [88] 6.2% ------------------------------------------------------------------------- loop [48] 26.3% infer-splitpoints4 [33] 73.7% [54] 3192(6.5%) 0(0.0%) option-on-expr ...erbie/src/core/regimes.rkt:106:0 sort-context-on-expr [61] 93.2% err-lsts->split-indices [63] 6.8% ------------------------------------------------------------------------- for-loop [49] 42.3% location-do [55] 57.7% [55] 3108(6.3%) 0(0.0%) location-do ...tlock/herbie/src/programs.rkt:129:0 location-do [55] 57.7% approximate9 [2] 42.3% ------------------------------------------------------------------------- atab-add-altn [51] 100.0% [56] 842(1.7%) 0(0.0%) best-and-tied-at-points ...ore/alt-table.rkt:122:0 errors [62] 100.0% ------------------------------------------------------------------------- map [39] 15.9% for-loop [50] 32.1% loop [48] 51.9% [57] 616(1.3%) 198(0.4%) ??? ...ket/collects/racket/private/list.rkt:323:18 hash-ref! [60] 67.9% ------------------------------------------------------------------------- for-loop [52] 100.0% [58] 200(0.4%) 200(0.4%) ??? /home/ztatlock/herbie/src/core/ematch.rkt:50:5 ------------------------------------------------------------------------- loop [48] 100.0% [59] 200(0.4%) 0(0.0%) make-multiplication-node .../core/reduce.rkt:221:0 make-multiplication-subnode [64]100.0% ------------------------------------------------------------------------- ??? [18] 1.1% ??? [6] 2.3% for-loop [14] 2.3% for-loop [13] 3.4% for-loop [50] 7.0% ??? [57] 8.0% for-loop [17] 8.4% localize-error [38] 9.7% for-loop [10] 13.6% ??? [66] 22.1% loop [9] 22.1% [60] 3504(7.1%) 0(0.0%) hash-ref! ...racket/private/more-scheme.rkt:373:13 ??? [66] 22.1% simplify [16] 19.1% ??? [3] 15.1% parse-loop12 [44] 13.7% ??? [4] 8.4% ??? [5] 8.4% ??? [6] 4.6% ??? [7] 4.6% f6 [67] 4.0% ------------------------------------------------------------------------- option-on-expr [54] 100.0% [61] 2974(6.0%) 0(0.0%) sort-context-on-expr ...herbie/src/points.rkt:50:0 sort [65] 100.0% ------------------------------------------------------------------------- best-and-tied-at-points [56] 100.0% [62] 842(1.7%) 0(0.0%) errors /home/ztatlock/herbie/src/points.rkt:144:0 for-loop [68] 73.9% eval-prog [87] 26.1% ------------------------------------------------------------------------- option-on-expr [54] 100.0% [63] 218(0.4%) 0(0.0%) err-lsts->split-indices .../core/regimes.rkt:224:0 add-splitpoint [69] 100.0% ------------------------------------------------------------------------- make-multiplication-node [59] 100.0% [64] 200(0.4%) 0(0.0%) make-multiplication-subnode ...re/reduce.rkt:231:0 group-by68 [70] 100.0% ------------------------------------------------------------------------- sort-context-on-expr [61] 100.0% [65] 2974(6.0%) 0(0.0%) sort ...ket/collects/racket/private/sort.rkt:213:0 copying-mergesort [72] 70.9% loop [80] 29.1% ------------------------------------------------------------------------- hash-ref! [60] 100.0% [66] 2886(5.9%) 0(0.0%) ??? ...e/ztatlock/herbie/src/core/taylor.rkt:42:15 hash-ref! [60] 100.0% ------------------------------------------------------------------------- loop [48] 4.5% parse-loop12 [44] 6.0% composed [73] 6.2% append-map [77] 6.8% map [39] 7.7% approximate9 [2] 13.4% hash-ref! [60] 25.2% simplify [16] 30.3% [67] 1660(3.4%) 422(0.9%) f6 ...et/collects/racket/match/compiler.rkt:499:40 map [39] 49.4% taylor-invert [74] 13.4% append-map [77] 8.5% composed [73] 6.2% compose [76] 6.0% ------------------------------------------------------------------------- errors [62] 100.0% [68] 622(1.3%) 0(0.0%) for-loop ...e/ztatlock/herbie/src/points.rkt:147:4 ??? [71] 100.0% ------------------------------------------------------------------------- err-lsts->split-indices [63] 100.0% [69] 218(0.4%) 0(0.0%) add-splitpoint ...erbie/src/core/regimes.rkt:237:2 for-loop [75] 100.0% ------------------------------------------------------------------------- make-multiplication-subnode [64]100.0% [70] 200(0.4%) 200(0.4%) group-by68 ...acket/collects/racket/list.rkt:749:0 ------------------------------------------------------------------------- map [39] 1.0% for-loop [68] 1.5% loop [48] 97.4% [71] 40306(81.9%) 2910(5.9%) ??? /home/ztatlock/herbie/src/programs.rkt:168:4 ??? [78] 73.3% real->bigfloat [79] 16.2% ??? [92] 2.7% ------------------------------------------------------------------------- sort [65] 41.5% copying-mergesort [72] 58.5% [72] 2110(4.3%) 0(0.0%) copying-mergesort .../racket/private/sort.rkt:91:4 copying-mergesort [72] 58.5% loop [80] 31.4% jloop [81] 10.1% ------------------------------------------------------------------------- f6 [67] 100.0% [73] 420(0.9%) 0(0.0%) composed ...ollects/racket/private/list.rkt:321:16 f6 [67] 100.0% ------------------------------------------------------------------------- f6 [67] 100.0% [74] 222(0.5%) 0(0.0%) taylor-invert .../herbie/src/core/taylor.rkt:312:0 simplify [16] 100.0% ------------------------------------------------------------------------- add-splitpoint [69] 100.0% [75] 218(0.4%) 0(0.0%) for-loop ...lock/herbie/src/core/regimes.rkt:239:4 for-loop [82] 100.0% ------------------------------------------------------------------------- f6 [67] 100.0% [76] 200(0.4%) 200(0.4%) compose ...collects/racket/private/list.rkt:385:12 ------------------------------------------------------------------------- f6 [67] 100.0% [77] 198(0.4%) 198(0.4%) append-map ...acket/collects/racket/list.rkt:565:2 f6 [67] 80.0% ------------------------------------------------------------------------- ??? [71] 100.0% [78] 29542(60.0%) 622(1.3%) ??? ...acket/collects/racket/private/kw.rkt:400:14 ??? [86] 88.1% bf* [84] 8.3% ...higher-order.rkt:373:33 [85] 1.5% ------------------------------------------------------------------------- ??? [71] 100.0% [79] 6548(13.3%) 5178(10.5%) real->bigfloat .../private/bigfloat/mpfr.rkt:451:0 ??? [96] 20.9% ------------------------------------------------------------------------- sort [65] 40.8% copying-mergesort [72] 59.2% [80] 2118(4.3%) 0(0.0%) loop ...cket/collects/racket/private/sort.rkt:64:8 ??? [83] 100.0% ------------------------------------------------------------------------- copying-mergesort [72] 100.0% [81] 856(1.7%) 0(0.0%) jloop ...et/collects/racket/private/sort.rkt:85:19 ??? [83] 100.0% ------------------------------------------------------------------------- for-loop [75] 100.0% [82] 218(0.4%) 218(0.4%) for-loop ...lock/herbie/src/core/regimes.rkt:243:8 ------------------------------------------------------------------------- jloop [81] 28.8% loop [80] 71.2% [83] 2974(6.0%) 0(0.0%) ??? /home/ztatlock/herbie/src/points.rkt:52:27 eval-prog [87] 92.7% ->flonum [88] 7.3% ------------------------------------------------------------------------- ??? [78] 100.0% [84] 2460(5.0%) 0(0.0%) bf* ...ath/private/bigfloat/bigfloat-mpfr.rkt:95:0 ??? [86] 100.0% ------------------------------------------------------------------------- ??? [78] 100.0% [85] 430(0.9%) 0(0.0%) ...higher-order.rkt:373:33 (unknown source) ??? [89] 100.0% ------------------------------------------------------------------------- loop [48] 1.5% bf* [84] 8.5% ??? [78] 90.0% [86] 28912(58.7%) 20348(41.3%) ??? ...-racket/utils/simple-result-arrow.rkt:26:12 bfexpt [90] 11.2% bftan [91] 11.2% ??? [95] 7.3% ------------------------------------------------------------------------- errors [62] 6.8% loop [27] 7.6% ??? [83] 85.5% [87] 3224(6.6%) 3016(6.1%) eval-prog ...tatlock/herbie/src/programs.rkt:162:0 parse-lambda [94] 6.5% ------------------------------------------------------------------------- loop [53] 22.1% ??? [83] 24.3% loop [48] 53.6% [88] 888(1.8%) 648(1.3%) ->flonum ...ock/herbie/src/syntax/syntax.rkt:224:0 ??? [93] 27.0% ------------------------------------------------------------------------- ...higher-order.rkt:373:33 [85] 100.0% [89] 430(0.9%) 0(0.0%) ??? ...cts/racket/contract/private/list.rkt:187:10 ??? [92] 100.0% ------------------------------------------------------------------------- ??? [86] 100.0% [90] 3238(6.6%) 2582(5.2%) bfexpt ...lib/math/private/bigfloat/mpfr.rkt:819:4 ??? [96] 20.3% ------------------------------------------------------------------------- ??? [86] 100.0% [91] 3226(6.6%) 2318(4.7%) bftan ...-lib/math/private/bigfloat/mpfr.rkt:616:4 ??? [96] 28.1% ------------------------------------------------------------------------- ??? [89] 28.4% ??? [71] 71.6% [92] 1514(3.1%) 0(0.0%) ??? ...ects/racket/contract/private/guts.rkt:638:8 ??? [95] 100.0% ------------------------------------------------------------------------- ->flonum [88] 100.0% [93] 240(0.5%) 0(0.0%) ??? ...-racket/utils/simple-result-arrow.rkt:47:15 ??? [96] 100.0% ------------------------------------------------------------------------- eval-prog [87] 100.0% [94] 208(0.4%) 0(0.0%) parse-lambda ...llects/racket/private/kw.rkt:393:2 loop [97] 100.0% ------------------------------------------------------------------------- ??? [92] 41.9% ??? [86] 58.1% [95] 3614(7.3%) 722(1.5%) ??? ...tract/private/arrow-higher-order.rkt:373:33 ??? [98] 67.6% ??? [99] 12.5% ------------------------------------------------------------------------- ??? [93] 7.6% bfexpt [90] 20.7% bftan [91] 28.6% real->bigfloat [79] 43.2% [96] 3174(6.4%) 3174(6.4%) ??? .../share/racket/collects/ffi/unsafe.rkt:861:4 ------------------------------------------------------------------------- parse-lambda [94] 100.0% [97] 208(0.4%) 208(0.4%) loop .../collects/racket/private/stxcase.rkt:112:7 ------------------------------------------------------------------------- ??? [95] 100.0% [98] 2442(5.0%) 1776(3.6%) ??? ...llects/racket/contract/combinator.rkt:178:4 any-wrap/traverse [100] 27.3% ------------------------------------------------------------------------- ??? [95] 100.0% [99] 450(0.9%) 450(0.9%) ??? ...ects/racket/contract/private/prop.rkt:489:4 ------------------------------------------------------------------------- ??? [98] 100.0% [100] 666(1.4%) 666(1.4%) any-wrap/traverse ...cket/utils/any-wrap.rkt:106:2 -------------------------------------------------------------------------