Profiling results ----------------- Total cpu time observed: 7698ms (out of 7848ms) Number of samples taken: 33 (once every 233ms) ========================================================================= Caller Idx Total Self Name+src Local% ms(pct) ms(pct) Callee ========================================================================= [1] 7698(100.0%) 0(0.0%) ??? ...lects/racket/private/more-scheme.rkt:261:28 profile-thunk16 [8] 100.0% ------------------------------------------------------------------------- ??? [85] 100.0% [2] 1110(14.4%) 0(0.0%) approximate9 ...both-ends/src/core/taylor.rkt:11:0 loop [9] 71.9% for-loop [13] 28.1% ------------------------------------------------------------------------- hash-ref! [30] 100.0% [3] 478(6.2%) 0(0.0%) ??? ...ection-both-ends/src/core/taylor.rkt:300:23 for-loop [11] 100.0% ------------------------------------------------------------------------- matcher [89] 100.0% [4] 402(5.2%) 0(0.0%) ??? ...ction-both-ends/src/core/matcher.rkt:127:11 for-loop [12] 100.0% ------------------------------------------------------------------------- for-loop [95] 100.0% [5] 320(4.2%) 0(0.0%) expand-implicit (unknown source) resolve+shift28 [10] 100.0% ------------------------------------------------------------------------- hash-ref! [30] 100.0% [6] 234(3.0%) 0(0.0%) ??? ...ection-both-ends/src/core/taylor.rkt:290:26 for-loop [14] 100.0% ------------------------------------------------------------------------- for-loop [95] 100.0% [7] 234(3.0%) 0(0.0%) expand-identifier (unknown source) resolve+shift28 [10] 100.0% ------------------------------------------------------------------------- ??? [1] 100.0% [8] 7698(100.0%) 0(0.0%) profile-thunk16 ...e/pkgs/profile-lib/main.rkt:9:0 run [15] 100.0% ------------------------------------------------------------------------- approximate9 [2] 100.0% [9] 798(10.4%) 0(0.0%) loop ...tection-both-ends/src/core/taylor.rkt:86:4 hash-ref! [30] 100.0% ------------------------------------------------------------------------- expand-identifier [7] 42.2% expand-implicit [5] 57.8% [10] 554(7.2%) 0(0.0%) resolve+shift28 (unknown source) fallback-loop [17] 100.0% ------------------------------------------------------------------------- ??? [3] 100.0% [11] 478(6.2%) 0(0.0%) for-loop ...n-both-ends/src/core/taylor.rkt:303:27 hash-ref! [30] 100.0% ------------------------------------------------------------------------- ??? [4] 100.0% [12] 402(5.2%) 0(0.0%) for-loop ...-both-ends/src/core/matcher.rkt:129:15 matcher [89] 100.0% ------------------------------------------------------------------------- approximate9 [2] 100.0% [13] 312(4.1%) 0(0.0%) for-loop ...on-both-ends/src/core/taylor.rkt:29:18 taylor [16] 100.0% ------------------------------------------------------------------------- ??? [6] 100.0% [14] 234(3.0%) 0(0.0%) for-loop ...n-both-ends/src/core/taylor.rkt:290:52 hash-ref! [30] 100.0% ------------------------------------------------------------------------- profile-thunk16 [8] 100.0% [15] 7698(100.0%) 0(0.0%) run ...et-7.5/share/pkgs/profile-lib/main.rkt:39:2 .../more-scheme.rkt:261:28 [18] 100.0% ------------------------------------------------------------------------- map [49] 24.7% for-loop [13] 24.7% hash-ref! [30] 50.6% [16] 632(8.2%) 0(0.0%) taylor ...tion-both-ends/src/core/taylor.rkt:169:0 taylor-invert [19] 75.3% map [49] 24.7% ------------------------------------------------------------------------- resolve+shift28 [10] 100.0% [17] 554(7.2%) 0(0.0%) fallback-loop (unknown source) for-loop [95] 100.0% ------------------------------------------------------------------------- for-loop [87] 6.5% run [15] 93.5% [18] 7698(100.0%) 602(7.8%) .../more-scheme.rkt:261:28 (unknown source) run-improve47 [20] 49.9% prepare-points-intervals [21] 31.7% errors [79] 3.9% get-final-combination [24] 2.8% oracle-error [27] 2.6% eval-errors [26] 2.6% ??? [25] 1.3% ??? [42] 1.3% ------------------------------------------------------------------------- taylor [16] 100.0% [19] 632(8.2%) 0(0.0%) taylor-invert ...th-ends/src/core/taylor.rkt:317:0 parse-loop74 [22] 50.6% first-nonzero-exp [23] 49.4% ------------------------------------------------------------------------- .../more-scheme.rkt:261:28 [18] 100.0% [20] 4046(52.6%) 0(0.0%) run-improve47 ...-both-ends/src/mainloop.rkt:346:0 for-loop [28] 100.0% ------------------------------------------------------------------------- .../more-scheme.rkt:261:28 [18] 100.0% [21] 2440(31.7%) 0(0.0%) prepare-points-intervals ...s/src/points.rkt:133:0 loop [29] 100.0% ------------------------------------------------------------------------- hash-ref! [30] 21.1% taylor-invert [19] 28.8% map [49] 50.1% [22] 1110(14.4%) 0(0.0%) parse-loop74 (unknown source) eval-const-expr [31] 100.0% ------------------------------------------------------------------------- taylor-invert [19] 100.0% [23] 312(4.1%) 0(0.0%) first-nonzero-exp ...nds/src/core/taylor.rkt:265:0 hash-ref! [30] 100.0% ------------------------------------------------------------------------- .../more-scheme.rkt:261:28 [18] 100.0% [24] 218(2.8%) 0(0.0%) get-final-combination ...ds/src/mainloop.rkt:371:0 infer-splitpoints [32] 100.0% ------------------------------------------------------------------------- .../more-scheme.rkt:261:28 [18] 100.0% [25] 200(2.6%) 200(2.6%) ??? ...cket-7.5/collects/racket/function.rkt:93:12 ------------------------------------------------------------------------- .../more-scheme.rkt:261:28 [18] 100.0% [26] 200(2.6%) 0(0.0%) eval-errors ...tion-both-ends/src/points.rkt:181:0 for-loop [33] 100.0% ------------------------------------------------------------------------- .../more-scheme.rkt:261:28 [18] 100.0% [27] 200(2.6%) 0(0.0%) oracle-error ...ion-both-ends/src/points.rkt:190:0 for-loop [34] 100.0% ------------------------------------------------------------------------- run-improve47 [20] 100.0% [28] 4046(52.6%) 0(0.0%) for-loop ...ction-both-ends/src/mainloop.rkt:365:4 run-iter! [35] 100.0% ------------------------------------------------------------------------- prepare-points-intervals [21] 100.0% [29] 2440(31.7%) 0(0.0%) loop ...w-detection-both-ends/src/points.rkt:145:4 loop [36] 74.3% ??? [41] 16.5% do-curry [43] 9.2% ------------------------------------------------------------------------- for-loop [14] 3.5% for-loop [11] 9.0% ??? [40] 9.0% ??? [38] 13.1% ??? [85] 18.6% loop [9] 18.6% first-nonzero-exp [23] 28.1% [30] 1110(14.4%) 0(0.0%) hash-ref! .../racket/private/more-scheme.rkt:376:2 f40 [39] 33.6% ??? [38] 31.7% taylor [16] 9.6% ??? [40] 9.0% ??? [3] 9.0% ??? [6] 3.5% parse-loop74 [22] 3.5% ------------------------------------------------------------------------- parse-loop74 [22] 100.0% [31] 1110(14.4%) 0(0.0%) eval-const-expr ...oth-ends/src/programs.rkt:120:0 temp85_0 [37] 100.0% ------------------------------------------------------------------------- get-final-combination [24] 100.0% [32] 218(2.8%) 0(0.0%) infer-splitpoints ...nds/src/core/regimes.rkt:33:0 for-loop [44] 100.0% ------------------------------------------------------------------------- eval-errors [26] 100.0% [33] 200(2.6%) 0(0.0%) for-loop ...tection-both-ends/src/points.rkt:183:2 ??? [42] 100.0% ------------------------------------------------------------------------- oracle-error [27] 100.0% [34] 200(2.6%) 0(0.0%) for-loop ...tection-both-ends/src/points.rkt:191:2 loop [81] 100.0% ------------------------------------------------------------------------- for-loop [28] 100.0% [35] 4046(52.6%) 0(0.0%) run-iter! ...tion-both-ends/src/mainloop.rkt:327:0 simplify! [45] 47.6% gen-series! [47] 27.4% finalize-iter! [48] 15.0% gen-rewrites! [51] 9.9% ------------------------------------------------------------------------- loop [29] 100.0% [36] 1814(23.6%) 400(5.2%) loop ...ow-detection-both-ends/src/points.rkt:81:2 ??? [85] 55.6% ??? [50] 22.4% ------------------------------------------------------------------------- eval-const-expr [31] 100.0% [37] 1110(14.4%) 0(0.0%) temp85_0 (unknown source) compile15 [46] 100.0% ------------------------------------------------------------------------- hash-ref! [30] 100.0% [38] 798(10.4%) 0(0.0%) ??? ...tection-both-ends/src/core/taylor.rkt:67:15 ??? [85] 65.3% hash-ref! [30] 34.7% ------------------------------------------------------------------------- map [49] 21.9% hash-ref! [30] 78.1% [39] 556(7.2%) 0(0.0%) f40 (unknown source) map [49] 100.0% ------------------------------------------------------------------------- hash-ref! [30] 100.0% [40] 478(6.2%) 0(0.0%) ??? ...tection-both-ends/src/core/taylor.rkt:44:15 hash-ref! [30] 100.0% ------------------------------------------------------------------------- loop [29] 100.0% [41] 402(5.2%) 202(2.6%) ??? ...ow-detection-both-ends/src/points.rkt:126:6 sample-multi-bounded [54] 49.8% ------------------------------------------------------------------------- .../more-scheme.rkt:261:28 [18] 50.0% for-loop [33] 50.0% [42] 400(5.2%) 200(2.6%) ??? ...tion-both-ends/src/syntax/syntax.rkt:214:17 ??? [53] 50.0% ------------------------------------------------------------------------- loop [29] 100.0% [43] 224(2.9%) 224(2.9%) do-curry ...-7.5/collects/racket/function.rkt:71:2 ------------------------------------------------------------------------- infer-splitpoints [32] 100.0% [44] 218(2.8%) 0(0.0%) for-loop ...on-both-ends/src/core/regimes.rkt:45:6 option-on-expr [52] 100.0% ------------------------------------------------------------------------- run-iter! [35] 100.0% [45] 1926(25.0%) 0(0.0%) simplify! ...tion-both-ends/src/mainloop.rkt:224:0 ??? [55] 100.0% ------------------------------------------------------------------------- temp85_0 [37] 100.0% [46] 1110(14.4%) 0(0.0%) compile15 (unknown source) temp91_0 [56] 100.0% ------------------------------------------------------------------------- run-iter! [35] 100.0% [47] 1110(14.4%) 0(0.0%) gen-series! ...on-both-ends/src/mainloop.rkt:160:0 for-loop [57] 100.0% ------------------------------------------------------------------------- run-iter! [35] 100.0% [48] 608(7.9%) 0(0.0%) finalize-iter! ...both-ends/src/mainloop.rkt:278:0 ??? [58] 100.0% ------------------------------------------------------------------------- taylor [16] 28.1% f40 [39] 71.9% [49] 556(7.2%) 0(0.0%) map ...t-7.5/collects/racket/private/map.rkt:35:13 parse-loop74 [22] 50.0% taylor [16] 28.1% f40 [39] 21.9% ------------------------------------------------------------------------- loop [36] 100.0% [50] 406(5.3%) 0(0.0%) ??? ...tract/private/arrow-higher-order.rkt:379:33 ival-sub [59] 100.0% ------------------------------------------------------------------------- run-iter! [35] 100.0% [51] 402(5.2%) 0(0.0%) gen-rewrites! ...-both-ends/src/mainloop.rkt:183:0 for-loop [60] 100.0% ------------------------------------------------------------------------- for-loop [44] 100.0% [52] 218(2.8%) 0(0.0%) option-on-expr ...-ends/src/core/regimes.rkt:124:0 sort-context-on-expr [61] 100.0% ------------------------------------------------------------------------- ??? [42] 100.0% [53] 200(2.6%) 200(2.6%) ??? ...ects/racket/contract/private/guts.rkt:770:8 ------------------------------------------------------------------------- ??? [41] 100.0% [54] 200(2.6%) 0(0.0%) sample-multi-bounded ...h-ends/src/points.rkt:14:0 random-ranges [62] 100.0% ------------------------------------------------------------------------- simplify! [45] 100.0% [55] 1926(25.0%) 0(0.0%) ??? ...ection-both-ends/src/core/simplify.rkt:42:0 egraph-run [63] 100.0% ------------------------------------------------------------------------- compile15 [46] 100.0% [56] 1110(14.4%) 0(0.0%) temp91_0 (unknown source) temp118_0 [65] 78.0% loop [81] 22.0% ------------------------------------------------------------------------- gen-series! [47] 100.0% [57] 1110(14.4%) 0(0.0%) for-loop ...ction-both-ends/src/mainloop.rkt:167:7 taylor-alt [64] 100.0% ------------------------------------------------------------------------- finalize-iter! [48] 100.0% [58] 608(7.9%) 0(0.0%) ??? ...contract/private/arrow-val-first.rkt:486:18 for-loop [66] 100.0% ------------------------------------------------------------------------- ??? [50] 100.0% [59] 406(5.3%) 0(0.0%) ival-sub ...on-both-ends/src/biginterval.rkt:244:0 e-compute [97] 100.0% ------------------------------------------------------------------------- gen-rewrites! [51] 100.0% [60] 402(5.2%) 0(0.0%) for-loop ...tion-both-ends/src/mainloop.rkt:191:11 rewrite-expression-head24 [67] 100.0% ------------------------------------------------------------------------- option-on-expr [52] 100.0% [61] 218(2.8%) 0(0.0%) sort-context-on-expr ...src/core/regimes.rkt:117:0 ??? [68] 100.0% ------------------------------------------------------------------------- sample-multi-bounded [54] 100.0% [62] 200(2.6%) 0(0.0%) random-ranges ...on-both-ends/src/common.rkt:164:0 cons/c [69] 100.0% ------------------------------------------------------------------------- ??? [55] 100.0% [63] 1926(25.0%) 0(0.0%) egraph-run .../pkgs/egg-herbie-linux/main.rkt:49:0 egraph-add-exprs [70] 100.0% ------------------------------------------------------------------------- for-loop [57] 100.0% [64] 1110(14.4%) 0(0.0%) taylor-alt ...ion-both-ends/src/mainloop.rkt:146:0 for-loop [72] 100.0% ------------------------------------------------------------------------- temp91_0 [56] 100.0% [65] 866(11.2%) 0(0.0%) temp118_0 (unknown source) expand-capturing-lifts [71] 100.0% ------------------------------------------------------------------------- ??? [58] 100.0% [66] 608(7.9%) 0(0.0%) for-loop ...-both-ends/src/core/alt-table.rkt:46:2 atab-add-altn [75] 34.2% errors [79] 32.9% loop [76] 32.9% ------------------------------------------------------------------------- for-loop [60] 100.0% [67] 402(5.2%) 0(0.0%) rewrite-expression-head24 ...core/matcher.rkt:85:0 rewriter [73] 100.0% ------------------------------------------------------------------------- sort-context-on-expr [61] 100.0% [68] 218(2.8%) 0(0.0%) ??? ...-7.5/collects/racket/private/sort.rkt:369:3 generic-sort/key [74] 100.0% ------------------------------------------------------------------------- random-ranges [62] 100.0% [69] 200(2.6%) 0(0.0%) cons/c .../racket/contract/private/guts.rkt:500:15 coerce-contract [77] 100.0% ------------------------------------------------------------------------- egraph-run [63] 100.0% [70] 1926(25.0%) 0(0.0%) egraph-add-exprs ...gg-herbie-linux/main.rkt:111:0 ??? [78] 100.0% ------------------------------------------------------------------------- loop [81] 22.0% temp118_0 [65] 78.0% [71] 1110(14.4%) 0(0.0%) expand-capturing-lifts (unknown source) lambda-clause-expander [80] 78.0% loop [81] 22.0% ------------------------------------------------------------------------- taylor-alt [64] 100.0% [72] 1110(14.4%) 0(0.0%) for-loop ...ction-both-ends/src/mainloop.rkt:152:6 ??? [85] 100.0% ------------------------------------------------------------------------- rewrite-expression-head24 [67] 29.2% matcher [89] 70.8% [73] 402(5.2%) 202(2.6%) rewriter ...on-both-ends/src/core/matcher.rkt:87:2 for-loop [82] 83.3% ------------------------------------------------------------------------- ??? [68] 100.0% [74] 218(2.8%) 0(0.0%) generic-sort/key .../racket/private/sort.rkt:156:2 loop [83] 100.0% ------------------------------------------------------------------------- for-loop [66] 100.0% [75] 208(2.7%) 0(0.0%) atab-add-altn ...ends/src/core/alt-table.rkt:194:0 errors [79] 100.0% ------------------------------------------------------------------------- for-loop [66] 100.0% [76] 200(2.6%) 200(2.6%) loop ...ion-both-ends/src/core/alt-table.rkt:168:2 ------------------------------------------------------------------------- cons/c [69] 100.0% [77] 200(2.6%) 0(0.0%) coerce-contract ...contract/private/guts.rkt:307:0 coerce-contract/f [84] 100.0% ------------------------------------------------------------------------- egraph-add-exprs [70] 100.0% [78] 1926(25.0%) 0(0.0%) ??? ...ction-both-ends/src/core/simplify.rkt:102:6 for-loop [86] 100.0% ------------------------------------------------------------------------- for-loop [66] 20.0% atab-add-altn [75] 20.8% .../more-scheme.rkt:261:28 [18] 59.3% [79] 1002(13.0%) 0(0.0%) errors ...detection-both-ends/src/points.rkt:203:0 for-loop [87] 100.0% ------------------------------------------------------------------------- expand-capturing-lifts [71] 100.0% [80] 866(11.2%) 0(0.0%) lambda-clause-expander (unknown source) finish-bodys [88] 100.0% ------------------------------------------------------------------------- expand-capturing-lifts [71] 27.5% temp91_0 [56] 27.5% for-loop [34] 45.0% [81] 444(5.8%) 244(3.2%) loop (unknown source) ??? [90] 45.0% expand-capturing-lifts [71] 27.5% ------------------------------------------------------------------------- rewriter [73] 100.0% [82] 402(5.2%) 0(0.0%) for-loop ...on-both-ends/src/core/matcher.rkt:89:4 matcher [89] 87.6% for-loop [92] 12.4% ------------------------------------------------------------------------- generic-sort/key [74] 100.0% [83] 218(2.8%) 0(0.0%) loop ...7.5/collects/racket/private/sort.rkt:96:12 ??? [85] 100.0% ------------------------------------------------------------------------- coerce-contract [77] 100.0% [84] 200(2.6%) 0(0.0%) coerce-contract/f ...ntract/private/guts.rkt:372:0 coerce-simple-value [91] 100.0% ------------------------------------------------------------------------- loop [83] 9.3% ??? [38] 11.4% location-do [93] 18.1% for-loop [72] 18.1% loop [36] 43.2% [85] 2336(30.3%) 218(2.8%) ??? ...tract/private/arrow-higher-order.rkt:375:33 ival-mult [94] 43.2% location-do [93] 18.1% approximate9 [2] 18.1% hash-ref! [30] 11.4% ------------------------------------------------------------------------- ??? [78] 100.0% [86] 1926(25.0%) 1926(25.0%) for-loop ...-both-ends/src/core/simplify.rkt:121:2 ------------------------------------------------------------------------- errors [79] 100.0% [87] 1002(13.0%) 0(0.0%) for-loop ...tection-both-ends/src/points.rkt:205:2 .../more-scheme.rkt:261:28 [18] 100.0% ------------------------------------------------------------------------- lambda-clause-expander [80] 41.9% for-loop [95] 58.1% [88] 866(11.2%) 0(0.0%) finish-bodys (unknown source) for-loop [95] 100.0% ------------------------------------------------------------------------- for-loop [12] 50.0% for-loop [82] 50.0% [89] 402(5.2%) 0(0.0%) matcher ...on-both-ends/src/core/matcher.rkt:115:2 ??? [4] 50.0% rewriter [73] 50.0% ------------------------------------------------------------------------- loop [81] 100.0% [90] 200(2.6%) 200(2.6%) ??? ...w-detection-both-ends/src/points.rkt:192:26 ------------------------------------------------------------------------- coerce-contract/f [84] 100.0% [91] 200(2.6%) 200(2.6%) coerce-simple-value ...ract/private/guts.rkt:385:0 ------------------------------------------------------------------------- for-loop [82] 100.0% [92] 200(2.6%) 0(0.0%) for-loop ...on-both-ends/src/core/matcher.rkt:96:8 fix-up-variables [96] 100.0% ------------------------------------------------------------------------- location-do [93] 11.0% ??? [85] 89.0% [93] 1110(14.4%) 0(0.0%) location-do ...ion-both-ends/src/programs.rkt:63:0 ??? [85] 89.0% location-do [93] 11.0% ------------------------------------------------------------------------- ??? [85] 100.0% [94] 1008(13.1%) 400(5.2%) ival-mult ...n-both-ends/src/biginterval.rkt:280:0 e-compute [97] 40.3% strong-immovable-endpoint-0? [99] 20.0% ------------------------------------------------------------------------- fallback-loop [17] 15.3% for-loop [95] 21.0% finish-bodys [88] 63.7% [95] 866(11.2%) 554(7.2%) for-loop (unknown source) finish-bodys [88] 36.3% for-loop [95] 21.0% expand-implicit [5] 12.3% dispatch-transformer41 [98] 12.0% expand-identifier [7] 3.0% ------------------------------------------------------------------------- for-loop [92] 100.0% [96] 200(2.6%) 0(0.0%) fix-up-variables ...nds/src/core/matcher.rkt:108:2 for-loop [100] 100.0% ------------------------------------------------------------------------- ival-sub [59] 50.0% ival-mult [94] 50.0% [97] 812(10.5%) 0(0.0%) e-compute ...n-both-ends/src/biginterval.rkt:172:0 bfsub [101] 100.0% ------------------------------------------------------------------------- for-loop [95] 100.0% [98] 312(4.1%) 0(0.0%) dispatch-transformer41 (unknown source) apply-transformer52 [102] 100.0% ------------------------------------------------------------------------- ival-mult [94] 100.0% [99] 202(2.6%) 202(2.6%) strong-immovable-endpoint-0? ...interval.rkt:133:0 ------------------------------------------------------------------------- fix-up-variables [96] 100.0% [100] 200(2.6%) 0(0.0%) for-loop ...on-both-ends/src/core/matcher.rkt:41:9 for-loop [103] 100.0% ------------------------------------------------------------------------- e-compute [97] 100.0% [101] 812(10.5%) 0(0.0%) bfsub ...-lib/math/private/bigfloat/mpfr.rkt:835:4 ??? [104] 74.6% new-mpfr [106] 25.4% ------------------------------------------------------------------------- dispatch-transformer41 [98] 100.0% [102] 312(4.1%) 0(0.0%) apply-transformer52 (unknown source) apply-transformer-in-context [105]100.0% ------------------------------------------------------------------------- for-loop [100] 100.0% [103] 200(2.6%) 0(0.0%) for-loop ...on-both-ends/src/core/matcher.rkt:26:9 fallback-update [107] 100.0% ------------------------------------------------------------------------- bfsub [101] 100.0% [104] 606(7.9%) 606(7.9%) ??? /opt/racket-7.5/collects/ffi/unsafe.rkt:938:4 ------------------------------------------------------------------------- apply-transformer52 [102] 100.0% [105] 312(4.1%) 0(0.0%) apply-transformer-in-context (unknown source) ??? [108] 100.0% ------------------------------------------------------------------------- bfsub [101] 100.0% [106] 206(2.7%) 206(2.7%) new-mpfr ...b/math/private/bigfloat/mpfr.rkt:348:0 ------------------------------------------------------------------------- for-loop [103] 100.0% [107] 200(2.6%) 0(0.0%) fallback-update ...s/racket/private/dict.rkt:115:2 assoc-ref [109] 100.0% ------------------------------------------------------------------------- apply-transformer-in-context [105]100.0% [108] 312(4.1%) 0(0.0%) ??? ...collects/racket/private/qq-and-or.rkt:155:9 ??? [110] 100.0% ------------------------------------------------------------------------- fallback-update [107] 100.0% [109] 200(2.6%) 200(2.6%) assoc-ref ...collects/racket/private/dict.rkt:56:0 ------------------------------------------------------------------------- ??? [108] 100.0% [110] 312(4.1%) 312(4.1%) ??? ...ollects/racket/private/qq-and-or.rkt:164:21 -------------------------------------------------------------------------