Profiling results ----------------- Total cpu time observed: 20356ms (out of 20436ms) Number of samples taken: 94 (once every 217ms) ========================================================================== Caller Idx Total Self Name+src Local% ms(pct) ms(pct) Callee ========================================================================== [1] 20356(100.0%) 0(0.0%) ??? ...lects/racket/private/more-scheme.rkt:261:28 profile-thunk16 [10] 100.0% -------------------------------------------------------------------------- ??? [74] 33.6% location-do [2] 66.4% [2] 2638(13.0%) 0(0.0%) location-do ...ion-both-ends/src/programs.rkt:63:0 location-do [2] 66.4% ??? [74] 20.6% loop [13] 13.0% -------------------------------------------------------------------------- ??? [74] 100.0% [3] 2638(13.0%) 0(0.0%) approximate9 ...both-ends/src/core/taylor.rkt:11:0 loop [11] 91.7% taylor [18] 8.3% -------------------------------------------------------------------------- hash-ref! [80] 100.0% [4] 1814(8.9%) 0(0.0%) ??? ...ection-both-ends/src/core/taylor.rkt:290:26 for-loop [12] 100.0% -------------------------------------------------------------------------- hash-ref! [80] 100.0% [5] 1082(5.3%) 0(0.0%) ??? ...ection-both-ends/src/core/taylor.rkt:300:23 for-loop [14] 100.0% -------------------------------------------------------------------------- for-loop [101] 100.0% [6] 988(4.9%) 0(0.0%) expand-implicit (unknown source) resolve+shift28 [15] 79.8% datum->syntax6 [44] 20.2% -------------------------------------------------------------------------- for-loop [101] 49.3% loop [52] 50.7% [7] 406(2.0%) 0(0.0%) syntax-e (unknown source) syntax-e/no-taint [16] 100.0% -------------------------------------------------------------------------- for-loop [101] 100.0% [8] 406(2.0%) 0(0.0%) dispatch-transformer41 (unknown source) apply-transformer52 [17] 100.0% -------------------------------------------------------------------------- hash-ref! [80] 100.0% [9] 200(1.0%) 0(0.0%) ??? ...-detection-both-ends/src/programs.rkt:178:5 loop [52] 100.0% -------------------------------------------------------------------------- ??? [1] 100.0% [10] 20356(100.0%) 0(0.0%) profile-thunk16 ...e/pkgs/profile-lib/main.rkt:9:0 run [19] 100.0% -------------------------------------------------------------------------- approximate9 [3] 100.0% [11] 2420(11.9%) 0(0.0%) loop ...tection-both-ends/src/core/taylor.rkt:86:4 ??? [74] 100.0% -------------------------------------------------------------------------- ??? [4] 100.0% [12] 1814(8.9%) 0(0.0%) for-loop ...n-both-ends/src/core/taylor.rkt:290:52 hash-ref! [80] 81.8% f61 [20] 18.2% -------------------------------------------------------------------------- location-do [2] 100.0% [13] 1438(7.1%) 0(0.0%) loop ...-detection-both-ends/src/programs.rkt:72:4 ??? [74] 100.0% -------------------------------------------------------------------------- ??? [5] 100.0% [14] 1082(5.3%) 0(0.0%) for-loop ...n-both-ends/src/core/taylor.rkt:303:27 hash-ref! [80] 100.0% -------------------------------------------------------------------------- expand-implicit [6] 100.0% [15] 788(3.9%) 0(0.0%) resolve+shift28 (unknown source) fallback-loop [21] 100.0% -------------------------------------------------------------------------- expand-id-application-form17 [102] 31.2% syntax-e [7] 68.8% [16] 590(2.9%) 0(0.0%) syntax-e/no-taint (unknown source) loop [52] 100.0% -------------------------------------------------------------------------- dispatch-transformer41 [8] 100.0% [17] 406(2.0%) 0(0.0%) apply-transformer52 (unknown source) loop [52] 50.7% apply-transformer-in-context [23] 49.3% -------------------------------------------------------------------------- approximate9 [3] 100.0% [18] 218(1.1%) 0(0.0%) taylor ...tion-both-ends/src/core/taylor.rkt:169:0 map [22] 100.0% -------------------------------------------------------------------------- profile-thunk16 [10] 100.0% [19] 20356(100.0%) 0(0.0%) run ...et-7.5/share/pkgs/profile-lib/main.rkt:39:2 .../more-scheme.rkt:261:28 [24] 100.0% -------------------------------------------------------------------------- for-loop [12] 40.6% hash-ref! [80] 59.4% [20] 812(4.0%) 0(0.0%) f61 (unknown source) eval-const-expr [32] 100.0% -------------------------------------------------------------------------- resolve+shift28 [15] 100.0% [21] 788(3.9%) 256(1.3%) fallback-loop (unknown source) for-loop [101] 67.5% -------------------------------------------------------------------------- taylor [18] 100.0% [22] 218(1.1%) 0(0.0%) map ...t-7.5/collects/racket/private/map.rkt:35:13 taylor-quotient [25] 100.0% -------------------------------------------------------------------------- apply-transformer52 [17] 100.0% [23] 200(1.0%) 0(0.0%) apply-transformer-in-context (unknown source) datum->syntax6 [44] 100.0% -------------------------------------------------------------------------- for-loop [83] 1.4% run [19] 98.6% [24] 20356(100.0%) 384(1.9%) .../more-scheme.rkt:261:28 (unknown source) prepare-points-intervals [30] 56.2% run-improve47 [26] 36.8% errors [76] 2.6% oracle-error [28] 2.0% eval-errors [29] 1.1% ??? [69] 0.5% -------------------------------------------------------------------------- map [22] 100.0% [25] 218(1.1%) 0(0.0%) taylor-quotient ...-ends/src/core/taylor.rkt:333:0 parse-loop74 [27] 100.0% -------------------------------------------------------------------------- .../more-scheme.rkt:261:28 [24] 100.0% [26] 7678(37.7%) 0(0.0%) run-improve47 ...-both-ends/src/mainloop.rkt:346:0 for-loop [31] 84.0% simplify! [41] 13.1% prepare-points-intervals [30] 2.9% -------------------------------------------------------------------------- taylor-quotient [25] 11.9% hash-ref! [80] 88.1% [27] 1826(9.0%) 0(0.0%) parse-loop74 (unknown source) eval-const-expr [32] 100.0% -------------------------------------------------------------------------- .../more-scheme.rkt:261:28 [24] 100.0% [28] 402(2.0%) 0(0.0%) oracle-error ...ion-both-ends/src/points.rkt:190:0 for-loop [33] 100.0% -------------------------------------------------------------------------- .../more-scheme.rkt:261:28 [24] 100.0% [29] 216(1.1%) 0(0.0%) eval-errors ...tion-both-ends/src/points.rkt:181:0 for-loop [34] 100.0% -------------------------------------------------------------------------- run-improve47 [26] 1.9% .../more-scheme.rkt:261:28 [24] 98.1% [30] 11652(57.2%) 0(0.0%) prepare-points-intervals ...s/src/points.rkt:133:0 loop [35] 100.0% -------------------------------------------------------------------------- run-improve47 [26] 100.0% [31] 6450(31.7%) 0(0.0%) for-loop ...ction-both-ends/src/mainloop.rkt:365:4 run-iter! [36] 100.0% -------------------------------------------------------------------------- f61 [20] 30.8% parse-loop74 [27] 69.2% [32] 2638(13.0%) 0(0.0%) eval-const-expr ...oth-ends/src/programs.rkt:120:0 temp85_0 [81] 68.8% eval-prog [37] 15.8% eval [38] 8.3% eval-one-top12 [39] 7.1% -------------------------------------------------------------------------- oracle-error [28] 100.0% [33] 402(2.0%) 0(0.0%) for-loop ...tection-both-ends/src/points.rkt:191:2 loop [52] 100.0% -------------------------------------------------------------------------- eval-errors [29] 100.0% [34] 216(1.1%) 0(0.0%) for-loop ...tection-both-ends/src/points.rkt:183:2 ??? [74] 100.0% -------------------------------------------------------------------------- prepare-points-intervals [30] 100.0% [35] 11652(57.2%) 604(3.0%) loop ...w-detection-both-ends/src/points.rkt:145:4 loop [40] 89.9% ??? [45] 3.3% ordinary-value? [47] 1.6% -------------------------------------------------------------------------- for-loop [31] 100.0% [36] 6450(31.7%) 0(0.0%) run-iter! ...tion-both-ends/src/mainloop.rkt:327:0 gen-series! [42] 40.9% simplify! [41] 30.7% finalize-iter! [43] 24.9% gen-rewrites! [46] 3.5% -------------------------------------------------------------------------- eval-const-expr [32] 100.0% [37] 418(2.1%) 0(0.0%) eval-prog ...ction-both-ends/src/programs.rkt:82:0 ??? [48] 52.2% hash-ref! [80] 47.8% -------------------------------------------------------------------------- eval-const-expr [32] 100.0% [38] 218(1.1%) 0(0.0%) eval (unknown source) datum->syntax6 [44] 100.0% -------------------------------------------------------------------------- eval-const-expr [32] 100.0% [39] 188(0.9%) 0(0.0%) eval-one-top12 (unknown source) for-loop [101] 100.0% -------------------------------------------------------------------------- loop [35] 100.0% [40] 10478(51.5%) 968(4.8%) loop ...ow-detection-both-ends/src/points.rkt:81:2 ??? [48] 64.9% ??? [74] 20.4% real->precision [53] 3.5% ??? [51] 2.0% -------------------------------------------------------------------------- run-improve47 [26] 33.7% run-iter! [36] 66.3% [41] 2988(14.7%) 0(0.0%) simplify! ...tion-both-ends/src/mainloop.rkt:224:0 ??? [49] 100.0% -------------------------------------------------------------------------- run-iter! [36] 100.0% [42] 2638(13.0%) 0(0.0%) gen-series! ...on-both-ends/src/mainloop.rkt:160:0 for-loop [50] 100.0% -------------------------------------------------------------------------- run-iter! [36] 100.0% [43] 1608(7.9%) 0(0.0%) finalize-iter! ...both-ends/src/mainloop.rkt:278:0 ??? [51] 100.0% -------------------------------------------------------------------------- expand-implicit [6] 32.4% apply-transformer-in-context [23] 32.4% eval [38] 35.3% [44] 618(3.0%) 0(0.0%) datum->syntax6 (unknown source) loop [52] 100.0% -------------------------------------------------------------------------- loop [35] 100.0% [45] 386(1.9%) 186(0.9%) ??? ...ow-detection-both-ends/src/points.rkt:126:6 sample-multi-bounded [55] 51.8% -------------------------------------------------------------------------- run-iter! [36] 100.0% [46] 224(1.1%) 0(0.0%) gen-rewrites! ...-both-ends/src/mainloop.rkt:183:0 for-loop [54] 100.0% -------------------------------------------------------------------------- loop [35] 100.0% [47] 184(0.9%) 0(0.0%) ordinary-value? ...on-both-ends/src/float.rkt:51:0 list-member? [56] 100.0% -------------------------------------------------------------------------- eval-prog [37] 3.1% loop [40] 96.9% [48] 7018(34.5%) 218(1.1%) ??? ...tract/private/arrow-higher-order.rkt:379:33 ival-exp [57] 88.0% ival-sub [61] 8.9% -------------------------------------------------------------------------- simplify! [41] 100.0% [49] 2988(14.7%) 0(0.0%) ??? ...ection-both-ends/src/core/simplify.rkt:42:0 egraph-run [58] 100.0% -------------------------------------------------------------------------- gen-series! [42] 100.0% [50] 2638(13.0%) 0(0.0%) for-loop ...ction-both-ends/src/mainloop.rkt:167:7 taylor-alt [59] 100.0% -------------------------------------------------------------------------- loop [40] 11.4% finalize-iter! [43] 88.6% [51] 1814(8.9%) 206(1.0%) ??? ...contract/private/arrow-val-first.rkt:486:18 for-loop [60] 88.6% -------------------------------------------------------------------------- for-loop [101] 5.1% apply-transformer52 [17] 5.7% ??? [9] 11.0% datum->syntax6 [44] 12.3% syntax-e/no-taint [16] 21.8% loop [52] 21.8% for-loop [33] 22.2% [52] 1810(8.9%) 618(3.0%) loop (unknown source) ??? [63] 22.2% loop [52] 21.8% gf [62] 21.8% hash-ref! [80] 11.0% syntax-e [7] 5.7% expand-id-application-form17 [102] 5.1% -------------------------------------------------------------------------- loop [40] 100.0% [53] 370(1.8%) 0(0.0%) real->precision ...oth-ends/src/programs.rkt:94:11 ??? [74] 100.0% -------------------------------------------------------------------------- gen-rewrites! [46] 100.0% [54] 224(1.1%) 0(0.0%) for-loop ...tion-both-ends/src/mainloop.rkt:191:11 *rules* [64] 100.0% -------------------------------------------------------------------------- ??? [45] 100.0% [55] 200(1.0%) 0(0.0%) sample-multi-bounded ...h-ends/src/points.rkt:14:0 random-ranges [65] 100.0% -------------------------------------------------------------------------- ordinary-value? [47] 100.0% [56] 184(0.9%) 184(0.9%) list-member? ...llects/racket/private/set.rkt:24:0 -------------------------------------------------------------------------- ??? [48] 100.0% [57] 6174(30.3%) 402(2.0%) ival-exp ...on-both-ends/src/biginterval.rkt:291:0 e-compute7 [86] 93.5% -------------------------------------------------------------------------- ??? [49] 100.0% [58] 2988(14.7%) 0(0.0%) egraph-run .../pkgs/egg-herbie-linux/main.rkt:49:0 egraph-add-exprs [66] 100.0% -------------------------------------------------------------------------- for-loop [50] 100.0% [59] 2638(13.0%) 0(0.0%) taylor-alt ...ion-both-ends/src/mainloop.rkt:146:0 for-loop [67] 100.0% -------------------------------------------------------------------------- ??? [51] 100.0% [60] 1608(7.9%) 0(0.0%) for-loop ...-both-ends/src/core/alt-table.rkt:46:2 atab-add-altn [68] 49.5% loop [70] 26.6% errors [76] 23.9% -------------------------------------------------------------------------- ??? [48] 100.0% [61] 626(3.1%) 202(1.0%) ival-sub ...on-both-ends/src/biginterval.rkt:209:0 e-compute7 [86] 67.7% -------------------------------------------------------------------------- loop [52] 100.0% [62] 590(2.9%) 184(0.9%) gf (unknown source) cache-or-reuse-hash [71] 34.9% propagation-merge [72] 33.9% -------------------------------------------------------------------------- loop [52] 100.0% [63] 402(2.0%) 0(0.0%) ??? ...w-detection-both-ends/src/points.rkt:192:26 ??? [69] 100.0% -------------------------------------------------------------------------- for-loop [54] 100.0% [64] 224(1.1%) 0(0.0%) *rules* ...on-both-ends/src/syntax/rules.rkt:667:0 for-loop [101] 100.0% -------------------------------------------------------------------------- sample-multi-bounded [55] 100.0% [65] 200(1.0%) 0(0.0%) random-ranges ...on-both-ends/src/common.rkt:164:0 build--> [73] 100.0% -------------------------------------------------------------------------- egraph-run [58] 100.0% [66] 2988(14.7%) 0(0.0%) egraph-add-exprs ...gg-herbie-linux/main.rkt:111:0 ??? [75] 100.0% -------------------------------------------------------------------------- taylor-alt [59] 100.0% [67] 2638(13.0%) 0(0.0%) for-loop ...ction-both-ends/src/mainloop.rkt:152:6 ??? [74] 100.0% -------------------------------------------------------------------------- for-loop [60] 100.0% [68] 796(3.9%) 0(0.0%) atab-add-altn ...ends/src/core/alt-table.rkt:194:0 errors [76] 74.1% override-at-pnts [78] 25.9% -------------------------------------------------------------------------- .../more-scheme.rkt:261:28 [24] 33.2% ??? [63] 66.8% [69] 602(3.0%) 202(1.0%) ??? ...tion-both-ends/src/syntax/syntax.rkt:214:17 return/no-unsupplied [106] 66.4% -------------------------------------------------------------------------- for-loop [60] 100.0% [70] 428(2.1%) 222(1.1%) loop ...ion-both-ends/src/core/alt-table.rkt:168:2 loop [77] 48.1% -------------------------------------------------------------------------- gf [62] 100.0% [71] 206(1.0%) 206(1.0%) cache-or-reuse-hash (unknown source) -------------------------------------------------------------------------- gf [62] 100.0% [72] 200(1.0%) 200(1.0%) propagation-merge (unknown source) -------------------------------------------------------------------------- random-ranges [65] 100.0% [73] 200(1.0%) 200(1.0%) build--> ...act/private/arrow-val-first.rkt:1214:0 -------------------------------------------------------------------------- for-loop [34] 4.0% real->precision [53] 6.9% location-do [2] 7.5% loop [13] 9.6% loop [11] 15.1% for-loop [67] 17.1% loop [40] 39.8% [74] 5358(26.3%) 416(2.0%) ??? ...tract/private/arrow-higher-order.rkt:375:33 ival-div [82] 36.1% location-do [2] 17.1% approximate9 [3] 17.1% hash-ref! [80] 15.1% bf [84] 6.9% -------------------------------------------------------------------------- egraph-add-exprs [66] 100.0% [75] 2988(14.7%) 0(0.0%) ??? ...ction-both-ends/src/core/simplify.rkt:102:6 for-loop [79] 100.0% -------------------------------------------------------------------------- for-loop [60] 24.0% atab-add-altn [68] 36.8% .../more-scheme.rkt:261:28 [24] 39.2% [76] 1602(7.9%) 0(0.0%) errors ...detection-both-ends/src/points.rkt:203:0 for-loop [83] 75.7% temp85_0 [81] 24.3% -------------------------------------------------------------------------- loop [77] 50.0% loop [70] 50.0% [77] 206(1.0%) 206(1.0%) loop ...racket-7.5/collects/racket/list.rkt:434:28 loop [77] 50.0% -------------------------------------------------------------------------- atab-add-altn [68] 100.0% [78] 206(1.0%) 0(0.0%) override-at-pnts ...s/src/core/alt-table.rkt:129:0 for-loop [85] 100.0% -------------------------------------------------------------------------- ??? [75] 100.0% [79] 2988(14.7%) 2988(14.7%) for-loop ...-both-ends/src/core/simplify.rkt:121:2 -------------------------------------------------------------------------- eval-prog [37] 0.8% loop [52] 4.1% for-loop [12] 14.7% for-loop [14] 14.9% ??? [87] 32.7% ??? [74] 32.7% [80] 2420(11.9%) 200(1.0%) hash-ref! .../racket/private/more-scheme.rkt:376:2 ??? [87] 32.7% parse-loop74 [27] 23.0% ??? [4] 21.5% ??? [5] 14.9% ??? [9] 4.1% f61 [20] 2.9% -------------------------------------------------------------------------- errors [76] 17.7% eval-const-expr [32] 82.3% [81] 2204(10.8%) 0(0.0%) temp85_0 (unknown source) compile15 [88] 100.0% -------------------------------------------------------------------------- ??? [74] 100.0% [82] 1934(9.5%) 962(4.7%) ival-div ...on-both-ends/src/biginterval.rkt:251:0 e-compute7 [86] 50.3% -------------------------------------------------------------------------- errors [76] 100.0% [83] 1212(6.0%) 628(3.1%) for-loop ...tection-both-ends/src/points.rkt:205:2 .../more-scheme.rkt:261:28 [24] 48.2% -------------------------------------------------------------------------- ??? [74] 100.0% [84] 370(1.8%) 0(0.0%) bf ...ath-lib/math/private/bigfloat/mpfr.rkt:615:2 new-mpfr [95] 50.3% ??? [96] 49.7% -------------------------------------------------------------------------- override-at-pnts [78] 100.0% [85] 206(1.0%) 206(1.0%) for-loop ...oth-ends/src/core/alt-table.rkt:130:22 -------------------------------------------------------------------------- ival-sub [61] 5.9% ival-div [82] 13.6% ival-exp [57] 80.5% [86] 7168(35.2%) 3962(19.5%) e-compute7 ...-both-ends/src/biginterval.rkt:149:0 strong-immovable-endpoint? [90] 16.6% bfexp [91] 11.3% bfdiv [92] 8.5% strong-immovable-endpoint-0? [93] 8.3% -------------------------------------------------------------------------- hash-ref! [80] 100.0% [87] 2420(11.9%) 0(0.0%) ??? ...tection-both-ends/src/core/taylor.rkt:44:15 hash-ref! [80] 100.0% -------------------------------------------------------------------------- temp85_0 [81] 100.0% [88] 2204(10.8%) 0(0.0%) compile15 (unknown source) temp91_0 [89] 100.0% -------------------------------------------------------------------------- compile15 [88] 100.0% [89] 2204(10.8%) 0(0.0%) temp91_0 (unknown source) temp118_0 [94] 100.0% -------------------------------------------------------------------------- e-compute7 [86] 100.0% [90] 1190(5.8%) 1190(5.8%) strong-immovable-endpoint? ...iginterval.rkt:106:0 -------------------------------------------------------------------------- e-compute7 [86] 100.0% [91] 808(4.0%) 200(1.0%) bfexp ...-lib/math/private/bigfloat/mpfr.rkt:632:4 new-mpfr [95] 49.8% ??? [96] 25.5% -------------------------------------------------------------------------- e-compute7 [86] 100.0% [92] 610(3.0%) 0(0.0%) bfdiv ...-lib/math/private/bigfloat/mpfr.rkt:835:4 new-mpfr [95] 69.5% ??? [96] 30.5% -------------------------------------------------------------------------- e-compute7 [86] 100.0% [93] 598(2.9%) 398(2.0%) strong-immovable-endpoint-0? ...interval.rkt:116:0 bigfloat-equal? [97] 33.4% -------------------------------------------------------------------------- temp91_0 [89] 100.0% [94] 2204(10.8%) 0(0.0%) temp118_0 (unknown source) expand-capturing-lifts [98] 100.0% -------------------------------------------------------------------------- bf [84] 18.4% bfexp [91] 39.7% bfdiv [92] 41.9% [95] 1012(5.0%) 1012(5.0%) new-mpfr ...b/math/private/bigfloat/mpfr.rkt:348:0 -------------------------------------------------------------------------- bf [84] 31.9% bfdiv [92] 32.3% bfexp [91] 35.8% [96] 576(2.8%) 576(2.8%) ??? /opt/racket-7.5/collects/ffi/unsafe.rkt:938:4 -------------------------------------------------------------------------- strong-immovable-endpoint-0? [93] 100.0% [97] 200(1.0%) 200(1.0%) bigfloat-equal? ...private/bigfloat/mpfr.rkt:144:0 -------------------------------------------------------------------------- temp118_0 [94] 100.0% [98] 2204(10.8%) 0(0.0%) expand-capturing-lifts (unknown source) lambda-clause-expander [99] 100.0% -------------------------------------------------------------------------- expand-capturing-lifts [98] 100.0% [99] 2204(10.8%) 0(0.0%) lambda-clause-expander (unknown source) finish-bodys [100] 100.0% -------------------------------------------------------------------------- lambda-clause-expander [99] 25.7% for-loop [101] 74.3% [100] 2204(10.8%) 0(0.0%) finish-bodys (unknown source) for-loop [101] 100.0% -------------------------------------------------------------------------- fallback-loop [21] 4.8% eval-one-top12 [39] 7.2% *rules* [64] 8.6% for-loop [101] 16.7% finish-bodys [100] 62.8% [101] 2616(12.9%) 920(4.5%) for-loop (unknown source) finish-bodys [100] 47.6% for-loop [101] 16.7% ormap [103] 8.6% expand-implicit [6] 7.9% dispatch-transformer41 [8] 3.4% expand-id-application-form17 [102] 1.4% syntax-e [7] 1.1% loop [52] 0.8% -------------------------------------------------------------------------- loop [52] 44.9% for-loop [101] 55.1% [102] 410(2.0%) 0(0.0%) expand-id-application-form17 (unknown source) binding-lookup52 [104] 55.1% syntax-e/no-taint [16] 44.9% -------------------------------------------------------------------------- for-loop [101] 100.0% [103] 224(1.1%) 0(0.0%) ormap ....5/collects/racket/private/map.rkt:141:13 flag-set? [105] 100.0% -------------------------------------------------------------------------- expand-id-application-form17 [102]100.0% [104] 226(1.1%) 226(1.1%) binding-lookup52 (unknown source) -------------------------------------------------------------------------- ormap [103] 100.0% [105] 224(1.1%) 0(0.0%) flag-set? ...tection-both-ends/src/config.rkt:28:0 return/no-unsupplied [106] 100.0% -------------------------------------------------------------------------- flag-set? [105] 35.9% ??? [69] 64.1% [106] 624(3.1%) 624(3.1%) return/no-unsupplied ...ct/private/arr-i.rkt:566:0 --------------------------------------------------------------------------