Profiling results ----------------- Total cpu time observed: 8234ms (out of 8480ms) Number of samples taken: 54 (once every 152ms) ================================================================== Caller Idx Total Self Name+src Local% ms(pct) ms(pct) Callee ================================================================== ??? [30] 100.0% [1] 7968(96.8%) 0(0.0%) profile-thunk16 ...t/pkgs/profile-lib/main.rkt:9:0 run [8] 100.0% ------------------------------------------------------------------ ??? [30] 100.0% [2] 5954(72.3%) 0(0.0%) run-improve50 ...ie/develop/src/mainloop.rkt:234:0 for-loop [9] 79.8% get-final-combination [11] 14.5% loop [37] 3.0% setup-alt-simplified [14] 2.7% ------------------------------------------------------------------ simplify-alt [18] 4.2% ??? [30] 95.8% [3] 3862(46.9%) 0(0.0%) simplify4 ...ie/develop/src/core/simplify.rkt:39:0 for-loop [10] 79.9% simplify-expr12 [16] 20.1% ------------------------------------------------------------------ copying-mergesort [53] 100.0% [4] 452(5.5%) 0(0.0%) jloop ...t/collects/racket/private/sort.rkt:121:23 ??? [12] 100.0% ------------------------------------------------------------------ hash-ref! [78] 100.0% [5] 298(3.6%) 0(0.0%) simplify ...erbie/develop/src/core/reduce.rkt:15:0 parse-loop50 [82] 100.0% ------------------------------------------------------------------ hash-ref! [78] 100.0% [6] 298(3.6%) 0(0.0%) ??? ...s/herbie/develop/src/core/taylor.rkt:291:23 for-loop [13] 100.0% ------------------------------------------------------------------ hash-ref! [78] 100.0% [7] 112(1.4%) 0(0.0%) ??? ...tlies/herbie/develop/src/programs.rkt:181:5 loop [72] 100.0% ------------------------------------------------------------------ profile-thunk16 [1] 98.6% [8] 8084(98.2%) 0(0.0%) run ...share/racket/pkgs/profile-lib/main.rkt:39:2 ??? [30] 100.0% ------------------------------------------------------------------ run-improve50 [2] 100.0% [9] 4752(57.7%) 0(0.0%) for-loop ...herbie/develop/src/mainloop.rkt:249:10 run-iter! [15] 100.0% ------------------------------------------------------------------ simplify4 [3] 100.0% [10] 3086(37.5%) 0(0.0%) for-loop ...ie/develop/src/core/simplify.rkt:61:12 simplify-expr12 [16] 100.0% ------------------------------------------------------------------ run-improve50 [2] 100.0% [11] 864(10.5%) 0(0.0%) get-final-combination ...op/src/mainloop.rkt:264:0 split-table [17] 100.0% ------------------------------------------------------------------ loop [66] 38.9% jloop [4] 61.1% [12] 740(9.0%) 0(0.0%) ??? ...ghtlies/herbie/develop/src/points.rkt:81:27 eval-prog [60] 100.0% ------------------------------------------------------------------ ??? [6] 100.0% [13] 298(3.6%) 0(0.0%) for-loop ...bie/develop/src/core/taylor.rkt:294:27 hash-ref! [78] 100.0% ------------------------------------------------------------------ run-improve50 [2] 100.0% [14] 162(2.0%) 0(0.0%) setup-alt-simplified .../develop/src/glue.rkt:54:0 simplify-alt [18] 100.0% ------------------------------------------------------------------ for-loop [9] 100.0% [15] 4752(57.7%) 0(0.0%) run-iter! ...herbie/develop/src/mainloop.rkt:215:0 simplify! [19] 77.9% finalize-iter! [22] 12.7% gen-series! [23] 9.5% ------------------------------------------------------------------ simplify4 [3] 20.1% for-loop [10] 79.9% [16] 3862(46.9%) 0(0.0%) simplify-expr12 ...elop/src/core/simplify.rkt:72:0 iterate-egraph!19 [20] 91.9% loop [24] 8.1% ------------------------------------------------------------------ get-final-combination [11] 100.0% [17] 864(10.5%) 0(0.0%) split-table ...s/herbie/develop/src/glue.rkt:168:0 f94 [21] 100.0% ------------------------------------------------------------------ setup-alt-simplified [14] 100.0% [18] 162(2.0%) 0(0.0%) simplify-alt ...s/herbie/develop/src/glue.rkt:87:0 simplify4 [3] 100.0% ------------------------------------------------------------------ run-iter! [15] 100.0% [19] 3700(44.9%) 0(0.0%) simplify! ...herbie/develop/src/mainloop.rkt:155:0 for-loop [25] 100.0% ------------------------------------------------------------------ simplify-expr12 [16] 100.0% [20] 3550(43.1%) 0(0.0%) iterate-egraph!19 ...op/src/core/simplify.rkt:99:0 one-iter [26] 100.0% ------------------------------------------------------------------ approximate9 [56] 15.0% split-table [17] 85.0% [21] 1016(12.3%) 152(1.8%) f94 ...t/collects/racket/match/compiler.rkt:507:40 option-on-expr [27] 85.0% ------------------------------------------------------------------ run-iter! [15] 100.0% [22] 602(7.3%) 0(0.0%) finalize-iter! ...e/develop/src/mainloop.rkt:169:0 ??? [52] 100.0% ------------------------------------------------------------------ run-iter! [15] 100.0% [23] 450(5.5%) 0(0.0%) gen-series! ...rbie/develop/src/mainloop.rkt:129:0 for-loop [28] 100.0% ------------------------------------------------------------------ simplify-expr12 [16] 100.0% [24] 312(3.8%) 0(0.0%) loop ...herbie/develop/src/core/simplify.rkt:207:2 pass [29] 100.0% ------------------------------------------------------------------ simplify! [19] 100.0% [25] 3700(44.9%) 0(0.0%) for-loop .../herbie/develop/src/mainloop.rkt:159:6 ??? [30] 100.0% ------------------------------------------------------------------ iterate-egraph!19 [20] 100.0% [26] 3550(43.1%) 0(0.0%) one-iter ...ie/develop/src/core/simplify.rkt:110:0 for-loop [31] 52.2% loop [32] 47.8% ------------------------------------------------------------------ f94 [21] 100.0% [27] 864(10.5%) 0(0.0%) option-on-expr ...velop/src/core/regimes.rkt:115:0 sort-context-on-expr [33] 85.6% pick-errors [36] 14.4% ------------------------------------------------------------------ gen-series! [23] 100.0% [28] 450(5.5%) 0(0.0%) for-loop .../herbie/develop/src/mainloop.rkt:135:7 taylor-alt [34] 100.0% ------------------------------------------------------------------ loop [24] 100.0% [29] 312(3.8%) 0(0.0%) pass ...herbie/develop/src/core/simplify.rkt:197:2 for-loop [35] 100.0% ------------------------------------------------------------------ for-loop [25] 15.0% run [8] 42.3% [30] 8234(100.0%) 0(0.0%) ??? ...lects/racket/private/more-scheme.rkt:261:28 profile-thunk16 [1] 40.9% run-improve50 [2] 29.6% simplify4 [3] 15.0% loop [37] 14.5% ------------------------------------------------------------------ for-loop [31] 46.0% one-iter [26] 54.0% [31] 1852(22.5%) 596(7.2%) for-loop ...e/develop/src/core/simplify.rkt:120:12 for-loop [31] 46.0% match-e [44] 33.9% ------------------------------------------------------------------ one-iter [26] 100.0% [32] 1698(20.6%) 0(0.0%) loop ...cket/collects/racket/private/map.rkt:52:19 apply-match [38] 100.0% ------------------------------------------------------------------ option-on-expr [27] 100.0% [33] 740(9.0%) 0(0.0%) sort-context-on-expr ...evelop/src/points.rkt:79:0 ??? [39] 100.0% ------------------------------------------------------------------ for-loop [28] 100.0% [34] 450(5.5%) 0(0.0%) taylor-alt ...es/herbie/develop/src/glue.rkt:145:0 for-loop [40] 100.0% ------------------------------------------------------------------ pass [29] 100.0% [35] 312(3.8%) 0(0.0%) for-loop ...e/develop/src/core/simplify.rkt:200:29 argmin [41] 100.0% ------------------------------------------------------------------ option-on-expr [27] 100.0% [36] 124(1.5%) 0(0.0%) pick-errors .../develop/src/core/regimes.rkt:187:0 for-loop [42] 100.0% ------------------------------------------------------------------ run-improve50 [2] 7.2% ??? [30] 92.8% [37] 2456(29.8%) 0(0.0%) loop ...htlies/herbie/develop/src/points.rkt:159:2 loop [43] 69.6% make-exacts* [50] 30.4% ------------------------------------------------------------------ loop [32] 100.0% [38] 1698(20.6%) 0(0.0%) apply-match ...develop/src/core/simplify.rkt:126:2 for-loop [46] 35.1% substitute-e [47] 26.6% merge-egraph-nodes! [55] 18.1% loop! [79] 10.6% match-e [44] 9.5% ------------------------------------------------------------------ sort-context-on-expr [33] 100.0% [39] 740(9.0%) 0(0.0%) ??? ...cket/collects/racket/private/sort.rkt:403:3 generic-sort/key [45] 81.4% loop [66] 18.6% ------------------------------------------------------------------ taylor-alt [34] 100.0% [40] 450(5.5%) 0(0.0%) for-loop ...lies/herbie/develop/src/glue.rkt:147:2 ??? [48] 100.0% ------------------------------------------------------------------ for-loop [35] 100.0% [41] 312(3.8%) 0(0.0%) argmin ...re/racket/collects/racket/list.rkt:743:0 for-loop [49] 100.0% ------------------------------------------------------------------ pick-errors [36] 100.0% [42] 124(1.5%) 0(0.0%) for-loop ...bie/develop/src/core/regimes.rkt:190:4 eval-prog [60] 100.0% ------------------------------------------------------------------ loop [37] 100.0% [43] 1710(20.8%) 0(0.0%) loop ...htlies/herbie/develop/src/points.rkt:119:2 make-exacts* [50] 65.5% loop [54] 34.5% ------------------------------------------------------------------ for-loop [67] 6.3% apply-match [38] 11.4% for-loop [31] 82.2% [44] 1418(17.2%) 958(11.6%) match-e ...herbie/develop/src/core/ematch.rkt:46:0 for-loop [57] 17.8% custom-in-set [59] 10.6% ??? [52] 10.4% ------------------------------------------------------------------ ??? [39] 100.0% [45] 602(7.3%) 0(0.0%) generic-sort/key .../racket/private/sort.rkt:185:2 copying-mergesort [53] 100.0% ------------------------------------------------------------------ apply-match [38] 100.0% [46] 596(7.2%) 0(0.0%) for-loop ...e/develop/src/core/simplify.rkt:140:10 loop! [79] 75.2% merge-egraph-nodes! [55] 24.8% ------------------------------------------------------------------ substitute-e [47] 22.1% apply-match [38] 77.9% [47] 452(5.5%) 150(1.8%) substitute-e ...e/develop/src/core/ematch.rkt:71:0 mk-enode! [58] 66.8% substitute-e [47] 22.1% ------------------------------------------------------------------ location-do [51] 50.0% for-loop [40] 50.0% [48] 450(5.5%) 0(0.0%) ??? ...tract/private/arrow-higher-order.rkt:342:33 location-do [51] 50.0% approximate9 [56] 50.0% ------------------------------------------------------------------ argmin [41] 100.0% [49] 312(3.8%) 0(0.0%) for-loop .../herbie/develop/src/programs.rkt:197:2 location-do [51] 100.0% ------------------------------------------------------------------ loop [37] 40.0% loop [43] 60.0% [50] 1866(22.7%) 0(0.0%) make-exacts* ...erbie/develop/src/points.rkt:106:0 map [61] 38.8% loop [72] 32.5% eval-prog [60] 28.7% ------------------------------------------------------------------ for-loop [49] 40.9% ??? [48] 59.1% [51] 762(9.3%) 0(0.0%) location-do ...acket/private/norm-define.rkt:53:83 ??? [48] 59.1% ??? [69] 21.3% ??? [104] 19.7% ------------------------------------------------------------------ match-e [44] 19.7% finalize-iter! [22] 80.3% [52] 750(9.1%) 0(0.0%) ??? ...contract/private/arrow-val-first.rkt:357:18 for-loop [62] 80.3% hash-has-key? [64] 19.7% ------------------------------------------------------------------ generic-sort/key [45] 27.1% copying-mergesort [53] 72.9% [53] 602(7.3%) 0(0.0%) copying-mergesort ...racket/private/sort.rkt:130:8 copying-mergesort [53] 72.9% jloop [4] 18.8% loop [66] 8.3% ------------------------------------------------------------------ loop [43] 100.0% [54] 590(7.2%) 0(0.0%) loop ...htlies/herbie/develop/src/points.rkt:109:4 map [61] 100.0% ------------------------------------------------------------------ for-loop [70] 17.5% for-loop [46] 32.5% apply-match [38] 50.0% [55] 456(5.5%) 0(0.0%) merge-egraph-nodes! ...p/src/core/egraph.rkt:152:0 update-leader! [63] 50.0% for-loop [71] 32.5% for-loop [70] 17.5% ------------------------------------------------------------------ ??? [48] 100.0% [56] 450(5.5%) 0(0.0%) approximate9 ...e/develop/src/core/taylor.rkt:12:0 loop [65] 66.2% f94 [21] 33.8% ------------------------------------------------------------------ match-e [44] 100.0% [57] 342(4.2%) 0(0.0%) for-loop ...rbie/develop/src/core/ematch.rkt:59:11 for-loop [67] 52.6% list-cartesian-product [68] 47.4% ------------------------------------------------------------------ substitute-e [47] 100.0% [58] 302(3.7%) 148(1.8%) mk-enode! ...bie/develop/src/core/egraph.rkt:101:0 hash-has-key? [64] 51.0% ------------------------------------------------------------------ match-e [44] 100.0% [59] 150(1.8%) 150(1.8%) custom-in-set ...acket/private/set-types.rkt:577:0 ------------------------------------------------------------------ for-loop [42] 8.9% make-exacts* [50] 38.3% ??? [12] 52.9% [60] 1400(17.0%) 840(10.2%) eval-prog ...herbie/develop/src/programs.rkt:146:0 hash-ref! [78] 29.3% parse-lambda [77] 10.7% ------------------------------------------------------------------ loop [54] 44.9% make-exacts* [50] 55.1% [61] 1314(16.0%) 0(0.0%) map ...acket/collects/racket/private/map.rkt:20:13 loop [72] 100.0% ------------------------------------------------------------------ ??? [52] 100.0% [62] 602(7.3%) 0(0.0%) for-loop ...ie/develop/src/core/alt-table.rkt:51:2 atab-add-altn [73] 100.0% ------------------------------------------------------------------ merge-egraph-nodes! [55] 100.0% [63] 308(3.7%) 0(0.0%) update-leader! ...evelop/src/core/egraph.rkt:217:0 for-loop [74] 100.0% ------------------------------------------------------------------ ??? [52] 49.0% mk-enode! [58] 51.0% [64] 302(3.7%) 302(3.7%) hash-has-key? ...et/private/more-scheme.rkt:368:13 ------------------------------------------------------------------ approximate9 [56] 100.0% [65] 298(3.6%) 0(0.0%) loop ...es/herbie/develop/src/core/taylor.rkt:83:4 hash-ref! [78] 100.0% ------------------------------------------------------------------ ??? [39] 47.9% copying-mergesort [53] 52.1% [66] 288(3.5%) 0(0.0%) loop ...ket/collects/racket/private/sort.rkt:97:12 ??? [12] 100.0% ------------------------------------------------------------------ for-loop [57] 100.0% [67] 180(2.2%) 0(0.0%) for-loop ...rbie/develop/src/core/ematch.rkt:65:37 match-e [44] 100.0% ------------------------------------------------------------------ list-cartesian-product [68] 50.0% for-loop [57] 50.0% [68] 162(2.0%) 0(0.0%) list-cartesian-product ...src/core/ematch.rkt:20:0 list-cartesian-product [68] 50.0% for-loop [75] 50.0% ------------------------------------------------------------------ location-do [51] 100.0% [69] 162(2.0%) 0(0.0%) ??? ...ects/racket/contract/private/list.rkt:737:4 for-loop [76] 100.0% ------------------------------------------------------------------ merge-egraph-nodes! [55] 100.0% [70] 160(1.9%) 0(0.0%) for-loop ...bie/develop/src/core/egraph.rkt:200:10 merge-egraph-nodes! [55] 100.0% ------------------------------------------------------------------ merge-egraph-nodes! [55] 100.0% [71] 148(1.8%) 148(1.8%) for-loop ...rbie/develop/src/core/egraph.rkt:232:6 ------------------------------------------------------------------ map [61] 1.9% ??? [7] 4.2% make-exacts* [50] 4.4% parse-loop50 [82] 5.6% loop! [79] 6.4% loop [72] 77.5% [72] 2658(32.3%) 0(0.0%) loop ...cket/collects/racket/private/map.rkt:25:19 loop [72] 77.5% loop! [79] 6.4% ??? [95] 6.3% parse-loop50 [82] 5.6% hash-ref! [78] 4.2% ->flonum [83] 0.0% ------------------------------------------------------------------ for-loop [62] 100.0% [73] 602(7.3%) 0(0.0%) atab-add-altn ...elop/src/core/alt-table.rkt:208:0 best-and-tied-at-points [80]100.0% ------------------------------------------------------------------ update-leader! [63] 100.0% [74] 308(3.7%) 0(0.0%) for-loop ...rbie/develop/src/core/egraph.rkt:222:6 for-loop [81] 100.0% ------------------------------------------------------------------ list-cartesian-product [68] 100.0% [75] 162(2.0%) 162(2.0%) for-loop ...erbie/develop/src/core/ematch.rkt:24:8 ------------------------------------------------------------------ ??? [69] 100.0% [76] 162(2.0%) 162(2.0%) for-loop ...acket/contract/private/list.rkt:743:12 ------------------------------------------------------------------ eval-prog [60] 100.0% [77] 150(1.8%) 0(0.0%) parse-lambda ...llects/racket/private/kw.rkt:437:2 loop [84] 100.0% ------------------------------------------------------------------ loop [72] 10.5% for-loop [13] 14.0% ??? [90] 14.0% loop [65] 14.0% eval-prog [60] 47.4% [78] 708(8.6%) 0(0.0%) hash-ref! ...racket/private/more-scheme.rkt:373:13 bigfloat-hash [86] 47.4% ??? [90] 14.0% ??? [6] 14.0% simplify [5] 14.0% ??? [7] 10.5% ------------------------------------------------------------------ apply-match [38] 14.3% loop [72] 38.1% for-loop [46] 47.6% [79] 628(7.6%) 0(0.0%) loop! ...s/herbie/develop/src/core/enode.rkt:163:2 loop [72] 38.1% custom-set-union [89] 35.8% set [87] 26.1% ------------------------------------------------------------------ atab-add-altn [73] 100.0% [80] 602(7.3%) 0(0.0%) best-and-tied-at-points ...ore/alt-table.rkt:122:0 errors [85] 100.0% ------------------------------------------------------------------ for-loop [74] 100.0% [81] 308(3.7%) 0(0.0%) for-loop ...rbie/develop/src/core/egraph.rkt:223:8 hash-update! [88] 100.0% ------------------------------------------------------------------ loop [72] 12.4% parse-loop50 [82] 24.8% simplify [5] 62.8% [82] 298(3.6%) 298(3.6%) parse-loop50 ...s/racket/match/compiler.rkt:418:15 parse-loop50 [82] 24.8% loop [72] 12.4% ------------------------------------------------------------------ loop [72] 100.0% [83] 244(3.0%) 0(0.0%) ->flonum ...s/herbie/develop/src/programs.rkt:34:0 ??? [102] 54.1% ??? [91] 45.9% ------------------------------------------------------------------ loop [84] 50.0% parse-lambda [77] 50.0% [84] 150(1.8%) 150(1.8%) loop .../collects/racket/private/stxcase.rkt:112:7 loop [84] 50.0% ------------------------------------------------------------------ best-and-tied-at-points [80]100.0% [85] 602(7.3%) 0(0.0%) errors ...lies/herbie/develop/src/points.rkt:184:0 for-loop [92] 100.0% ------------------------------------------------------------------ hash-ref! [78] 100.0% [86] 410(5.0%) 0(0.0%) bigfloat-hash ...h/private/bigfloat/mpfr.rkt:165:0 sig+exp->bigfloat [93] 100.0% ------------------------------------------------------------------ loop! [79] 100.0% [87] 328(4.0%) 328(4.0%) set ...collects/racket/private/set-types.rkt:981:0 ------------------------------------------------------------------ for-loop [81] 100.0% [88] 308(3.7%) 0(0.0%) hash-update! ...ket/private/more-scheme.rkt:362:13 ??? [94] 100.0% ------------------------------------------------------------------ loop! [79] 100.0% [89] 300(3.6%) 300(3.6%) custom-set-union ...et/private/set-types.rkt:168:0 ------------------------------------------------------------------ hash-ref! [78] 100.0% [90] 298(3.6%) 0(0.0%) ??? ...es/herbie/develop/src/core/taylor.rkt:43:15 hash-ref! [78] 100.0% ------------------------------------------------------------------ ->flonum [83] 100.0% [91] 112(1.4%) 112(1.4%) ??? ...-racket/utils/simple-result-arrow.rkt:60:15 ------------------------------------------------------------------ errors [85] 100.0% [92] 602(7.3%) 150(1.8%) for-loop ...es/herbie/develop/src/points.rkt:187:4 ??? [95] 75.1% ------------------------------------------------------------------ bigfloat-hash [86] 100.0% [93] 410(5.0%) 410(5.0%) sig+exp->bigfloat ...ivate/bigfloat/mpfr.rkt:385:0 ------------------------------------------------------------------ hash-update! [88] 100.0% [94] 308(3.7%) 0(0.0%) ??? ...s/herbie/develop/src/core/egraph.rkt:225:24 for-loop [96] 100.0% ------------------------------------------------------------------ for-loop [92] 21.2% loop [72] 78.8% [95] 2128(25.8%) 356(4.3%) ??? ...tlies/herbie/develop/src/programs.rkt:152:4 ??? [97] 43.0% ??? [98] 40.3% ------------------------------------------------------------------ ??? [94] 100.0% [96] 308(3.7%) 308(3.7%) for-loop ...bie/develop/src/core/egraph.rkt:226:26 ------------------------------------------------------------------ ??? [95] 100.0% [97] 914(11.1%) 536(6.5%) ??? ...acket/collects/racket/private/kw.rkt:444:14 ??? [100] 24.7% ??? [101] 16.6% ------------------------------------------------------------------ ??? [95] 100.0% [98] 858(10.4%) 0(0.0%) ??? ...contract/private/../../private/kw.rkt:761:9 real->bigfloat [99] 100.0% ------------------------------------------------------------------ ??? [98] 100.0% [99] 858(10.4%) 858(10.4%) real->bigfloat .../private/bigfloat/mpfr.rkt:451:0 ------------------------------------------------------------------ ??? [97] 100.0% [100] 226(2.7%) 0(0.0%) ??? ...-racket/utils/simple-result-arrow.rkt:39:12 bfsub [103] 100.0% ------------------------------------------------------------------ ??? [97] 100.0% [101] 152(1.8%) 0(0.0%) ??? ...herbie/develop/src/syntax/syntax.rkt:118:17 ??? [102] 100.0% ------------------------------------------------------------------ ->flonum [83] 46.5% ??? [101] 53.5% [102] 284(3.4%) 0(0.0%) ??? ...ightlies/herbie/develop/src/config.rkt:48:0 return/no-unsupplied [105] 53.5% ??? [104] 46.5% ------------------------------------------------------------------ ??? [100] 100.0% [103] 226(2.7%) 112(1.4%) bfsub ...-lib/math/private/bigfloat/mpfr.rkt:819:4 ??? [106] 50.4% ------------------------------------------------------------------ ??? [102] 46.8% location-do [51] 53.2% [104] 282(3.4%) 132(1.6%) ??? ...racket/collects/racket/private/kw.rkt:761:9 ??? [108] 53.2% ------------------------------------------------------------------ ??? [102] 100.0% [105] 152(1.8%) 0(0.0%) return/no-unsupplied ...ct/private/arr-i.rkt:533:0 filter [107] 100.0% ------------------------------------------------------------------ bfsub [103] 100.0% [106] 114(1.4%) 114(1.4%) ??? .../share/racket/collects/ffi/unsafe.rkt:861:4 ------------------------------------------------------------------ return/no-unsupplied [105] 100.0% [107] 152(1.8%) 152(1.8%) filter ...t/collects/racket/private/list.rkt:256:2 ------------------------------------------------------------------ ??? [104] 100.0% [108] 150(1.8%) 150(1.8%) ??? ...s/racket/contract/private/arr-i.rkt:1233:27 ------------------------------------------------------------------