Profiling results ----------------- Total cpu time observed: 14860ms (out of 15116ms) Number of samples taken: 66 (once every 225ms) ======================================================================= Caller Idx Total Self Name+src Local% ms(pct) ms(pct) Callee ======================================================================= ??? [29] 100.0% [1] 14398(96.9%) 0(0.0%) profile-thunk14 ...t/pkgs/profile-lib/main.rkt:9:0 run [4] 100.0% ----------------------------------------------------------------------- ??? [29] 100.0% [2] 10942(73.6%) 0(0.0%) run-improve58 ...ock/herbie/src/mainloop.rkt:242:0 for-loop [5] 50.4% get-final-combination [6] 49.6% ----------------------------------------------------------------------- loop [68] 4.5% ??? [29] 95.5% [3] 4880(32.8%) 0(0.0%) simplify ...lock/herbie/src/core/simplify.rkt:39:0 simplify-expr [7] 79.3% for-loop [8] 16.6% iterate-egraph!5 [11] 4.1% ----------------------------------------------------------------------- profile-thunk14 [1] 100.0% [4] 14398(96.9%) 0(0.0%) run ...share/racket/pkgs/profile-lib/main.rkt:31:2 ??? [29] 100.0% ----------------------------------------------------------------------- run-improve58 [2] 100.0% [5] 5516(37.1%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:253:8 run-iter! [9] 100.0% ----------------------------------------------------------------------- run-improve58 [2] 100.0% [6] 5426(36.5%) 0(0.0%) get-final-combination ...ie/src/mainloop.rkt:269:0 split-table [10] 95.9% extract-alt [12] 4.1% ----------------------------------------------------------------------- simplify [3] 100.0% [7] 3872(26.1%) 0(0.0%) simplify-expr ...herbie/src/core/simplify.rkt:68:0 iterate-egraph!5 [11] 100.0% ----------------------------------------------------------------------- simplify [3] 100.0% [8] 808(5.4%) 0(0.0%) for-loop ...ock/herbie/src/core/simplify.rkt:61:12 iterate-egraph!5 [11] 75.2% loop [13] 24.8% ----------------------------------------------------------------------- for-loop [5] 100.0% [9] 5516(37.1%) 0(0.0%) run-iter! ...tatlock/herbie/src/mainloop.rkt:223:0 simplify! [15] 84.4% gen-series! [17] 7.7% choose-best-alt! [18] 4.0% finalize-iter! [19] 3.9% ----------------------------------------------------------------------- get-final-combination [6] 100.0% [10] 5204(35.0%) 0(0.0%) split-table .../ztatlock/herbie/src/glue.rkt:171:0 infer-splitpoints4 [14] 100.0% ----------------------------------------------------------------------- simplify [3] 4.3% for-loop [8] 13.0% simplify-expr [7] 82.7% [11] 4680(31.5%) 0(0.0%) iterate-egraph!5 ...bie/src/core/simplify.rkt:95:0 one-iter [16] 95.7% map-enodes [21] 4.3% ----------------------------------------------------------------------- get-final-combination [6] 100.0% [12] 222(1.5%) 0(0.0%) extract-alt ...e/ztatlock/herbie/src/glue.rkt:57:0 loop [68] 100.0% ----------------------------------------------------------------------- for-loop [8] 100.0% [13] 200(1.3%) 0(0.0%) loop ...tatlock/herbie/src/core/simplify.rkt:203:2 pass [20] 100.0% ----------------------------------------------------------------------- split-table [10] 100.0% [14] 5204(35.0%) 0(0.0%) infer-splitpoints4 ...ie/src/core/regimes.rkt:19:0 option-on-expr [22] 100.0% ----------------------------------------------------------------------- run-iter! [9] 100.0% [15] 4658(31.3%) 0(0.0%) simplify! ...tatlock/herbie/src/mainloop.rkt:162:0 for-loop [23] 100.0% ----------------------------------------------------------------------- iterate-egraph!5 [11] 100.0% [16] 4480(30.1%) 440(3.0%) one-iter ...ock/herbie/src/core/simplify.rkt:106:0 for-loop [24] 46.7% loop [25] 43.5% ----------------------------------------------------------------------- run-iter! [9] 100.0% [17] 422(2.8%) 0(0.0%) gen-series! ...tlock/herbie/src/mainloop.rkt:134:0 for-loop [27] 100.0% ----------------------------------------------------------------------- run-iter! [9] 100.0% [18] 220(1.5%) 0(0.0%) choose-best-alt! .../herbie/src/mainloop.rkt:120:0 ??? [26] 100.0% ----------------------------------------------------------------------- run-iter! [9] 100.0% [19] 216(1.5%) 0(0.0%) finalize-iter! ...ck/herbie/src/mainloop.rkt:177:0 ??? [26] 100.0% ----------------------------------------------------------------------- loop [13] 100.0% [20] 200(1.3%) 0(0.0%) pass ...tatlock/herbie/src/core/simplify.rkt:193:2 for-loop [28] 100.0% ----------------------------------------------------------------------- iterate-egraph!5 [11] 100.0% [21] 200(1.3%) 0(0.0%) map-enodes ...ock/herbie/src/core/egraph.rkt:139:0 loop [68] 100.0% ----------------------------------------------------------------------- infer-splitpoints4 [14] 100.0% [22] 5204(35.0%) 0(0.0%) option-on-expr ...erbie/src/core/regimes.rkt:106:0 sort-context-on-expr [30] 95.3% pick-errors [34] 4.7% ----------------------------------------------------------------------- simplify! [15] 100.0% [23] 4658(31.3%) 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] 2092(14.1%) 810(5.5%) for-loop ...ck/herbie/src/core/simplify.rkt:116:12 for-loop [24] 50.0% match-e [32] 30.6% ----------------------------------------------------------------------- one-iter [16] 100.0% [25] 1948(13.1%) 0(0.0%) loop ...cket/collects/racket/private/map.rkt:53:19 apply-match [31] 100.0% ----------------------------------------------------------------------- finalize-iter! [19] 49.5% choose-best-alt! [18] 50.5% [26] 436(2.9%) 0(0.0%) ??? ...contract/private/arrow-val-first.rkt:357:18 atab-pick-alt8 [35] 50.5% for-loop [36] 49.5% ----------------------------------------------------------------------- gen-series! [17] 100.0% [27] 422(2.8%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:140:7 taylor-alt [33] 100.0% ----------------------------------------------------------------------- pass [20] 100.0% [28] 200(1.3%) 0(0.0%) for-loop ...ck/herbie/src/core/simplify.rkt:196:29 for-loop [37] 100.0% ----------------------------------------------------------------------- for-loop [23] 10.9% run [4] 44.2% [29] 14618(98.4%) 0(0.0%) ??? ...lects/racket/private/more-scheme.rkt:261:28 profile-thunk14 [1] 44.2% run-improve58 [2] 32.4% loop [39] 12.6% simplify [3] 10.9% ----------------------------------------------------------------------- option-on-expr [22] 100.0% [30] 4962(33.4%) 0(0.0%) sort-context-on-expr ...herbie/src/points.rkt:50:0 sort [38] 100.0% ----------------------------------------------------------------------- loop [25] 100.0% [31] 1948(13.1%) 220(1.5%) apply-match .../herbie/src/core/simplify.rkt:122:2 merge-egraph-nodes! [48] 35.1% for-loop [41] 21.7% loop! [73] 21.6% mk-enode! [51] 10.4% ----------------------------------------------------------------------- for-loop [49] 8.7% for-loop [24] 91.3% [32] 1282(8.6%) 416(2.8%) match-e ...tatlock/herbie/src/core/ematch.rkt:46:0 for-loop [40] 67.6% ----------------------------------------------------------------------- for-loop [27] 100.0% [33] 422(2.8%) 0(0.0%) taylor-alt ...e/ztatlock/herbie/src/glue.rkt:142:0 for-loop [42] 100.0% ----------------------------------------------------------------------- option-on-expr [22] 100.0% [34] 242(1.6%) 0(0.0%) pick-errors ...k/herbie/src/core/regimes.rkt:173:0 for-loop [43] 100.0% ----------------------------------------------------------------------- ??? [26] 100.0% [35] 220(1.5%) 0(0.0%) atab-pick-alt8 ...rbie/src/core/alt-table.rkt:54:0 ??? [44] 100.0% ----------------------------------------------------------------------- ??? [26] 100.0% [36] 216(1.5%) 0(0.0%) for-loop ...ock/herbie/src/core/alt-table.rkt:51:2 atab-add-altn [45] 100.0% ----------------------------------------------------------------------- for-loop [28] 100.0% [37] 200(1.3%) 200(1.3%) for-loop ...ck/herbie/src/core/simplify.rkt:183:13 ----------------------------------------------------------------------- sort-context-on-expr [30] 100.0% [38] 4962(33.4%) 0(0.0%) sort ...ket/collects/racket/private/sort.rkt:213:0 copying-mergesort [46] 69.5% loop [54] 30.5% ----------------------------------------------------------------------- ??? [29] 100.0% [39] 3676(24.7%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:122:2 loop [47] 47.1% make-exacts* [55] 46.6% loop [57] 6.3% ----------------------------------------------------------------------- match-e [32] 100.0% [40] 866(5.8%) 666(4.5%) for-loop ...tlock/herbie/src/core/ematch.rkt:59:11 for-loop [49] 35.9% ----------------------------------------------------------------------- apply-match [31] 100.0% [41] 422(2.8%) 0(0.0%) for-loop ...ck/herbie/src/core/simplify.rkt:136:10 merge-egraph-nodes! [48] 52.6% mk-enode! [51] 47.4% ----------------------------------------------------------------------- taylor-alt [33] 100.0% [42] 422(2.8%) 0(0.0%) for-loop /home/ztatlock/herbie/src/glue.rkt:144:2 location-do [50] 100.0% ----------------------------------------------------------------------- pick-errors [34] 100.0% [43] 242(1.6%) 0(0.0%) for-loop ...lock/herbie/src/core/regimes.rkt:176:4 eval-prog [72] 100.0% ----------------------------------------------------------------------- atab-pick-alt8 [35] 100.0% [44] 220(1.5%) 0(0.0%) ??? ...tract/private/arrow-higher-order.rkt:369:33 best-alt [52] 100.0% ----------------------------------------------------------------------- for-loop [36] 100.0% [45] 216(1.5%) 0(0.0%) atab-add-altn ...rbie/src/core/alt-table.rkt:208:0 best-and-tied-at-points [53] 100.0% ----------------------------------------------------------------------- sort [38] 47.5% copying-mergesort [46] 52.5% [46] 3448(23.2%) 0(0.0%) copying-mergesort .../racket/private/sort.rkt:91:4 copying-mergesort [46] 52.5% loop [54] 35.9% jloop [56] 11.6% ----------------------------------------------------------------------- loop [39] 100.0% [47] 1730(11.6%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:93:2 make-exacts* [55] 43.0% loop [57] 42.5% eval-prog [72] 14.5% ----------------------------------------------------------------------- for-loop [41] 24.5% apply-match [31] 75.5% [48] 906(6.1%) 0(0.0%) merge-egraph-nodes! ...e/src/core/egraph.rkt:152:0 update-leader! [58] 46.6% enode-merge! [60] 26.7% for-loop [61] 26.7% ----------------------------------------------------------------------- for-loop [40] 100.0% [49] 422(2.8%) 200(1.3%) for-loop ...tlock/herbie/src/core/ematch.rkt:65:37 match-e [32] 52.6% ----------------------------------------------------------------------- for-loop [42] 100.0% [50] 422(2.8%) 0(0.0%) location-do ...tlock/herbie/src/programs.rkt:129:0 approximate9 [59] 100.0% ----------------------------------------------------------------------- for-loop [41] 49.8% apply-match [31] 50.2% [51] 402(2.7%) 402(2.7%) mk-enode! ...lock/herbie/src/core/egraph.rkt:101:0 ----------------------------------------------------------------------- ??? [44] 100.0% [52] 220(1.5%) 0(0.0%) best-alt /home/ztatlock/herbie/src/glue.rkt:79:0 argmins [62] 100.0% ----------------------------------------------------------------------- atab-add-altn [45] 100.0% [53] 216(1.5%) 0(0.0%) best-and-tied-at-points ...ore/alt-table.rkt:122:0 errors [69] 100.0% ----------------------------------------------------------------------- sort [38] 45.0% copying-mergesort [46] 55.0% [54] 3368(22.7%) 0(0.0%) loop ...cket/collects/racket/private/sort.rkt:64:8 ??? [63] 100.0% ----------------------------------------------------------------------- loop [47] 30.3% loop [39] 69.7% [55] 2458(16.5%) 0(0.0%) make-exacts* ...tatlock/herbie/src/points.rkt:80:0 map [64] 51.1% loop [68] 48.9% ----------------------------------------------------------------------- copying-mergesort [46] 100.0% [56] 1594(10.7%) 0(0.0%) jloop ...et/collects/racket/private/sort.rkt:85:19 ??? [63] 100.0% ----------------------------------------------------------------------- loop [39] 24.0% loop [47] 76.0% [57] 968(6.5%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:83:4 map [64] 100.0% ----------------------------------------------------------------------- merge-egraph-nodes! [48] 100.0% [58] 422(2.8%) 0(0.0%) update-leader! ...herbie/src/core/egraph.rkt:217:0 for-loop [65] 100.0% ----------------------------------------------------------------------- location-do [50] 100.0% [59] 422(2.8%) 0(0.0%) approximate9 ...ck/herbie/src/core/taylor.rkt:11:0 loop [66] 100.0% ----------------------------------------------------------------------- merge-egraph-nodes! [48] 100.0% [60] 242(1.6%) 242(1.6%) enode-merge! ...ck/herbie/src/core/enode.rkt:100:0 ----------------------------------------------------------------------- merge-egraph-nodes! [48] 100.0% [61] 242(1.6%) 242(1.6%) for-loop ...tlock/herbie/src/core/egraph.rkt:232:6 ----------------------------------------------------------------------- best-alt [52] 100.0% [62] 220(1.5%) 0(0.0%) argmins /home/ztatlock/herbie/src/common.rkt:85:0 composed [67] 100.0% ----------------------------------------------------------------------- jloop [56] 32.1% loop [54] 67.9% [63] 4962(33.4%) 0(0.0%) ??? /home/ztatlock/herbie/src/points.rkt:52:27 eval-prog [72] 95.5% ??? [80] 4.5% ----------------------------------------------------------------------- loop [57] 43.5% make-exacts* [55] 56.5% [64] 2224(15.0%) 0(0.0%) map ...acket/collects/racket/private/map.rkt:21:13 loop [68] 100.0% ----------------------------------------------------------------------- update-leader! [58] 100.0% [65] 422(2.8%) 0(0.0%) for-loop ...tlock/herbie/src/core/egraph.rkt:222:6 for-loop [70] 100.0% ----------------------------------------------------------------------- approximate9 [59] 100.0% [66] 422(2.8%) 0(0.0%) loop ...e/ztatlock/herbie/src/core/taylor.rkt:82:4 hash-ref! [71] 100.0% ----------------------------------------------------------------------- argmins [62] 100.0% [67] 220(1.5%) 0(0.0%) composed ...ollects/racket/private/list.rkt:321:16 errors [69] 100.0% ----------------------------------------------------------------------- make-exacts* [55] 0.1% loop! [73] 0.4% map [64] 0.7% map-enodes [21] 1.2% extract-alt [12] 5.5% loop [68] 92.1% [68] 4048(27.2%) 0(0.0%) loop ...cket/collects/racket/private/map.rkt:26:19 loop [68] 92.1% simplify [3] 5.5% for-loop [76] 1.2% ->flonum [92] 0.5% loop! [73] 0.4% ??? [80] 0.3% ----------------------------------------------------------------------- best-and-tied-at-points [53] 49.5% composed [67] 50.5% [69] 436(2.9%) 0(0.0%) errors /home/ztatlock/herbie/src/points.rkt:144:0 for-loop [75] 50.5% eval-prog [72] 49.5% ----------------------------------------------------------------------- for-loop [65] 100.0% [70] 422(2.8%) 200(1.3%) for-loop ...tlock/herbie/src/core/egraph.rkt:223:8 hash-update! [74] 52.6% ----------------------------------------------------------------------- ??? [78] 15.8% ??? [79] 15.8% loop [66] 68.4% [71] 422(2.8%) 222(1.5%) hash-ref! ...racket/private/more-scheme.rkt:373:13 ??? [79] 15.8% ??? [78] 15.8% simplify [77] 15.8% ----------------------------------------------------------------------- errors [69] 4.0% for-loop [43] 4.4% loop [47] 4.6% ??? [63] 87.0% [72] 5448(36.7%) 3894(26.2%) eval-prog ...tatlock/herbie/src/programs.rkt:162:0 ??? [81] 16.4% new-lambda [82] 4.4% parse-app [84] 4.0% parse-lambda [86] 3.7% ----------------------------------------------------------------------- loop [68] 23.8% apply-match [31] 76.2% [73] 420(2.8%) 0(0.0%) loop! .../ztatlock/herbie/src/core/enode.rkt:163:2 custom-set-union [85] 52.4% loop [68] 23.8% set [87] 23.8% ----------------------------------------------------------------------- for-loop [70] 100.0% [74] 222(1.5%) 0(0.0%) hash-update! ...ket/private/more-scheme.rkt:362:13 ??? [83] 100.0% ----------------------------------------------------------------------- errors [69] 100.0% [75] 220(1.5%) 0(0.0%) for-loop ...e/ztatlock/herbie/src/points.rkt:147:4 ??? [80] 100.0% ----------------------------------------------------------------------- loop [68] 100.0% [76] 200(1.3%) 0(0.0%) for-loop ...ock/herbie/src/core/simplify.rkt:161:2 eval-const-expr [88] 100.0% ----------------------------------------------------------------------- hash-ref! [71] 100.0% [77] 200(1.3%) 0(0.0%) simplify ...atlock/herbie/src/core/reduce.rkt:18:0 simplify-node [89] 100.0% ----------------------------------------------------------------------- hash-ref! [71] 100.0% [78] 200(1.3%) 0(0.0%) ??? ...e/ztatlock/herbie/src/core/taylor.rkt:42:15 hash-ref! [71] 100.0% ----------------------------------------------------------------------- hash-ref! [71] 100.0% [79] 200(1.3%) 0(0.0%) ??? ...e/ztatlock/herbie/src/core/taylor.rkt:63:15 hash-ref! [71] 100.0% ----------------------------------------------------------------------- for-loop [75] 6.5% ??? [63] 6.6% loop [68] 86.9% [80] 3386(22.8%) 0(0.0%) ??? /home/ztatlock/herbie/src/programs.rkt:168:4 ??? [90] 44.1% real->bigfloat [91] 35.8% ->flonum [92] 13.1% ??? [95] 7.0% ----------------------------------------------------------------------- eval-prog [72] 100.0% [81] 894(6.0%) 0(0.0%) ??? ...collects/racket/private/qq-and-or.rkt:155:9 ??? [93] 100.0% ----------------------------------------------------------------------- eval-prog [72] 100.0% [82] 240(1.6%) 0(0.0%) new-lambda ...ollects/racket/private/kw.rkt:631:11 loop [94] 100.0% ----------------------------------------------------------------------- hash-update! [74] 100.0% [83] 222(1.5%) 0(0.0%) ??? .../ztatlock/herbie/src/core/egraph.rkt:225:24 for-loop [96] 100.0% ----------------------------------------------------------------------- eval-prog [72] 100.0% [84] 220(1.5%) 220(1.5%) parse-app .../collects/racket/private/kw.rkt:903:2 ----------------------------------------------------------------------- loop! [73] 100.0% [85] 220(1.5%) 0(0.0%) custom-set-union ...et/private/set-types.rkt:168:0 for-loop [97] 100.0% ----------------------------------------------------------------------- eval-prog [72] 100.0% [86] 200(1.3%) 200(1.3%) parse-lambda ...llects/racket/private/kw.rkt:393:2 ----------------------------------------------------------------------- loop! [73] 100.0% [87] 200(1.3%) 200(1.3%) set ...collects/racket/private/set-types.rkt:982:0 ----------------------------------------------------------------------- for-loop [76] 100.0% [88] 200(1.3%) 200(1.3%) eval-const-expr ...k/herbie/src/programs.rkt:180:0 ----------------------------------------------------------------------- simplify [77] 100.0% [89] 200(1.3%) 0(0.0%) simplify-node ...k/herbie/src/core/reduce.rkt:41:0 append-map [98] 100.0% ----------------------------------------------------------------------- ??? [80] 100.0% [90] 1494(10.1%) 0(0.0%) ??? ...acket/collects/racket/private/kw.rkt:400:14 ??? [103] 50.3% bf* [100] 34.1% ...higher-order.rkt:373:33 [101] 15.5% ----------------------------------------------------------------------- ??? [80] 100.0% [91] 1212(8.2%) 1212(8.2%) real->bigfloat .../private/bigfloat/mpfr.rkt:451:0 ----------------------------------------------------------------------- ??? [80] 47.8% loop [68] 52.2% [92] 924(6.2%) 0(0.0%) ->flonum ...ock/herbie/src/syntax/syntax.rkt:224:0 ??? [99] 72.9% ??? [106] 27.1% ----------------------------------------------------------------------- ??? [81] 100.0% [93] 894(6.0%) 894(6.0%) ??? ...ollects/racket/private/qq-and-or.rkt:164:21 ----------------------------------------------------------------------- new-lambda [82] 100.0% [94] 240(1.6%) 240(1.6%) loop .../collects/racket/private/stxcase.rkt:112:7 ----------------------------------------------------------------------- ??? [80] 100.0% [95] 238(1.6%) 0(0.0%) ??? ...ects/racket/contract/private/guts.rkt:638:8 ??? [106] 100.0% ----------------------------------------------------------------------- ??? [83] 100.0% [96] 222(1.5%) 222(1.5%) for-loop ...lock/herbie/src/core/egraph.rkt:226:26 ----------------------------------------------------------------------- custom-set-union [85] 100.0% [97] 220(1.5%) 0(0.0%) for-loop ...cts/racket/private/set-types.rkt:174:3 for-loop [102] 100.0% ----------------------------------------------------------------------- simplify-node [89] 100.0% [98] 200(1.3%) 200(1.3%) append-map ...acket/collects/racket/list.rkt:565:2 ----------------------------------------------------------------------- ->flonum [92] 100.0% [99] 674(4.5%) 674(4.5%) ??? /home/ztatlock/herbie/src/config.rkt:29:0 ----------------------------------------------------------------------- ??? [90] 100.0% [100] 510(3.4%) 0(0.0%) bf* ...ath/private/bigfloat/bigfloat-mpfr.rkt:95:0 ??? [103] 100.0% ----------------------------------------------------------------------- ??? [90] 100.0% [101] 232(1.6%) 0(0.0%) ...higher-order.rkt:373:33 (unknown source) ??? [104] 100.0% ----------------------------------------------------------------------- for-loop [97] 100.0% [102] 220(1.5%) 220(1.5%) for-loop ...cts/racket/private/set-types.rkt:178:5 ----------------------------------------------------------------------- bf* [100] 40.4% ??? [90] 59.6% [103] 1262(8.5%) 0(0.0%) ??? ...-racket/utils/simple-result-arrow.rkt:26:12 bfmul [105] 79.6% ??? [106] 20.4% ----------------------------------------------------------------------- ...higher-order.rkt:373:33 [101]100.0% [104] 232(1.6%) 232(1.6%) ??? ...cts/racket/contract/private/list.rkt:187:10 ----------------------------------------------------------------------- ??? [103] 100.0% [105] 1004(6.8%) 498(3.4%) bfmul ...-lib/math/private/bigfloat/mpfr.rkt:819:4 ??? [107] 50.4% ----------------------------------------------------------------------- ??? [95] 31.9% ->flonum [92] 33.5% ??? [103] 34.6% [106] 746(5.0%) 488(3.3%) ??? ...tract/private/arrow-higher-order.rkt:373:33 ??? [108] 34.6% ----------------------------------------------------------------------- bfmul [105] 100.0% [107] 506(3.4%) 506(3.4%) ??? .../share/racket/collects/ffi/unsafe.rkt:861:4 ----------------------------------------------------------------------- ??? [106] 100.0% [108] 258(1.7%) 258(1.7%) ??? ...llects/racket/contract/combinator.rkt:178:4 -----------------------------------------------------------------------