Profiling results ----------------- Total cpu time observed: 5374ms (out of 6264ms) Number of samples taken: 25 (once every 215ms) ======================================================================= Caller Idx Total Self Name+src Local% ms(pct) ms(pct) Callee ======================================================================= [1] 5374(100.0%) 0(0.0%) ??? ...lects/racket/private/more-scheme.rkt:261:28 profile-thunk16 [9] 100.0% ----------------------------------------------------------------------- ??? [70] 100.0% [2] 706(13.1%) 0(0.0%) approximate9 .../findroot/src/core/taylor.rkt:11:0 loop [10] 100.0% ----------------------------------------------------------------------- matcher [68] 100.0% [3] 468(8.7%) 0(0.0%) ??? ...herbie/findroot/src/core/matcher.rkt:131:11 for-loop [11] 85.3% foldl [16] 14.7% ----------------------------------------------------------------------- loop [86] 49.5% for-loop [91] 50.5% [4] 408(7.6%) 0(0.0%) syntax-e (unknown source) syntax-e/no-taint [12] 100.0% ----------------------------------------------------------------------- hash-ref! [60] 100.0% [5] 304(5.7%) 0(0.0%) ??? .../herbie/findroot/src/core/taylor.rkt:300:23 for-loop [15] 100.0% ----------------------------------------------------------------------- hash-ref! [60] 100.0% [6] 304(5.7%) 0(0.0%) ??? .../herbie/findroot/src/core/taylor.rkt:290:26 for-loop [14] 100.0% ----------------------------------------------------------------------- loop [86] 100.0% [7] 202(3.8%) 0(0.0%) dispatch-transformer41 (unknown source) apply-transformer52 [17] 100.0% ----------------------------------------------------------------------- hash-ref! [60] 100.0% [8] 200(3.7%) 0(0.0%) taylor-invert ...indroot/src/core/taylor.rkt:317:0 parse-loop74 [13] 100.0% ----------------------------------------------------------------------- ??? [1] 100.0% [9] 5374(100.0%) 0(0.0%) profile-thunk16 ...e/pkgs/profile-lib/main.rkt:9:0 run [18] 100.0% ----------------------------------------------------------------------- approximate9 [2] 100.0% [10] 706(13.1%) 0(0.0%) loop ...s/herbie/findroot/src/core/taylor.rkt:86:4 hash-ref! [60] 100.0% ----------------------------------------------------------------------- ??? [3] 100.0% [11] 468(8.7%) 0(0.0%) for-loop ...e/findroot/src/core/matcher.rkt:133:15 hash-ref! [60] 100.0% ----------------------------------------------------------------------- syntax-e [4] 100.0% [12] 408(7.6%) 0(0.0%) syntax-e/no-taint (unknown source) loop [86] 100.0% ----------------------------------------------------------------------- taylor-invert [8] 49.8% map [72] 50.2% [13] 402(7.5%) 0(0.0%) parse-loop74 (unknown source) eval-const-expr [19] 100.0% ----------------------------------------------------------------------- ??? [6] 100.0% [14] 304(5.7%) 0(0.0%) for-loop ...ie/findroot/src/core/taylor.rkt:290:52 hash-ref! [60] 100.0% ----------------------------------------------------------------------- ??? [5] 100.0% [15] 304(5.7%) 0(0.0%) for-loop ...ie/findroot/src/core/taylor.rkt:303:27 hash-ref! [60] 100.0% ----------------------------------------------------------------------- ??? [3] 100.0% [16] 206(3.8%) 0(0.0%) foldl ....5/collects/racket/private/list.rkt:229:4 ??? [20] 100.0% ----------------------------------------------------------------------- dispatch-transformer41 [7] 100.0% [17] 202(3.8%) 0(0.0%) apply-transformer52 (unknown source) loop [86] 100.0% ----------------------------------------------------------------------- profile-thunk16 [9] 100.0% [18] 5374(100.0%) 0(0.0%) run ...et-7.5/share/pkgs/profile-lib/main.rkt:39:2 .../more-scheme.rkt:261:28 [21] 100.0% ----------------------------------------------------------------------- parse-loop74 [13] 100.0% [19] 402(7.5%) 0(0.0%) eval-const-expr ...findroot/src/programs.rkt:120:0 temp85_0 [62] 100.0% ----------------------------------------------------------------------- foldl [16] 100.0% [20] 206(3.8%) 0(0.0%) ??? ...s/herbie/findroot/src/core/matcher.rkt:25:7 core457 [81] 100.0% ----------------------------------------------------------------------- for-loop [59] 5.6% run [18] 94.4% [21] 5374(100.0%) 400(7.4%) .../more-scheme.rkt:261:28 (unknown source) run-improve47 [22] 51.8% prepare-points-intervals [26] 25.9% errors [55] 7.3% get-final-combination [23] 5.6% oracle-error [24] 3.7% ??? [70] 1.9% ----------------------------------------------------------------------- .../more-scheme.rkt:261:28 [21] 100.0% [22] 2984(55.5%) 0(0.0%) run-improve47 ...e/findroot/src/mainloop.rkt:346:0 for-loop [25] 92.1% prepare-points-intervals [26] 7.9% ----------------------------------------------------------------------- .../more-scheme.rkt:261:28 [21] 100.0% [23] 404(7.5%) 0(0.0%) get-final-combination ...ot/src/mainloop.rkt:371:0 infer-splitpoints [27] 100.0% ----------------------------------------------------------------------- .../more-scheme.rkt:261:28 [21] 100.0% [24] 200(3.7%) 0(0.0%) oracle-error ...rbie/findroot/src/points.rkt:177:0 for-loop [28] 100.0% ----------------------------------------------------------------------- run-improve47 [22] 100.0% [25] 2748(51.1%) 0(0.0%) for-loop ...herbie/findroot/src/mainloop.rkt:365:4 run-iter! [29] 100.0% ----------------------------------------------------------------------- run-improve47 [22] 14.5% .../more-scheme.rkt:261:28 [21] 85.5% [26] 1630(30.3%) 0(0.0%) prepare-points-intervals ...t/src/points.rkt:120:0 loop [30] 85.5% loop [86] 14.5% ----------------------------------------------------------------------- get-final-combination [23] 100.0% [27] 404(7.5%) 0(0.0%) infer-splitpoints ...oot/src/core/regimes.rkt:33:0 for-loop [31] 100.0% ----------------------------------------------------------------------- oracle-error [24] 100.0% [28] 200(3.7%) 0(0.0%) for-loop ...s/herbie/findroot/src/points.rkt:178:2 loop [86] 100.0% ----------------------------------------------------------------------- for-loop [25] 100.0% [29] 2748(51.1%) 0(0.0%) run-iter! ...erbie/findroot/src/mainloop.rkt:327:0 finalize-iter! [32] 29.3% simplify! [34] 27.9% gen-series! [35] 25.7% gen-rewrites! [37] 17.0% ----------------------------------------------------------------------- prepare-points-intervals [26] 100.0% [30] 1394(25.9%) 0(0.0%) loop ...tlies/herbie/findroot/src/points.rkt:132:4 ??? [33] 57.5% loop [36] 42.5% ----------------------------------------------------------------------- infer-splitpoints [27] 100.0% [31] 404(7.5%) 0(0.0%) for-loop ...bie/findroot/src/core/regimes.rkt:45:6 option-on-expr [38] 100.0% ----------------------------------------------------------------------- run-iter! [29] 100.0% [32] 806(15.0%) 0(0.0%) finalize-iter! .../findroot/src/mainloop.rkt:278:0 ??? [39] 100.0% ----------------------------------------------------------------------- loop [30] 100.0% [33] 802(14.9%) 200(3.7%) ??? ...htlies/herbie/findroot/src/points.rkt:113:6 sample-multi-bounded [90] 49.9% loop [86] 25.2% ----------------------------------------------------------------------- run-iter! [29] 100.0% [34] 768(14.3%) 0(0.0%) simplify! ...erbie/findroot/src/mainloop.rkt:224:0 ??? [40] 100.0% ----------------------------------------------------------------------- run-iter! [29] 100.0% [35] 706(13.1%) 0(0.0%) gen-series! ...bie/findroot/src/mainloop.rkt:160:0 for-loop [41] 100.0% ----------------------------------------------------------------------- loop [30] 100.0% [36] 592(11.0%) 398(7.4%) loop ...htlies/herbie/findroot/src/points.rkt:79:2 ??? [70] 32.8% ----------------------------------------------------------------------- run-iter! [29] 100.0% [37] 468(8.7%) 0(0.0%) gen-rewrites! ...e/findroot/src/mainloop.rkt:183:0 for-loop [42] 100.0% ----------------------------------------------------------------------- for-loop [31] 100.0% [38] 404(7.5%) 0(0.0%) option-on-expr ...droot/src/core/regimes.rkt:124:0 for-loop [43] 50.5% err-lsts->split-indices [44] 49.5% ----------------------------------------------------------------------- finalize-iter! [32] 100.0% [39] 806(15.0%) 0(0.0%) ??? ...contract/private/arrow-val-first.rkt:486:18 for-loop [45] 100.0% ----------------------------------------------------------------------- simplify! [34] 100.0% [40] 768(14.3%) 0(0.0%) ??? .../herbie/findroot/src/core/simplify.rkt:42:0 egraph-run [46] 100.0% ----------------------------------------------------------------------- gen-series! [35] 100.0% [41] 706(13.1%) 0(0.0%) for-loop ...herbie/findroot/src/mainloop.rkt:167:7 taylor-alt [47] 100.0% ----------------------------------------------------------------------- gen-rewrites! [37] 100.0% [42] 468(8.7%) 0(0.0%) for-loop ...erbie/findroot/src/mainloop.rkt:191:11 rewrite-expression-head24 [48] 100.0% ----------------------------------------------------------------------- option-on-expr [38] 100.0% [43] 204(3.8%) 0(0.0%) for-loop ...ie/findroot/src/core/regimes.rkt:135:4 errors [55] 100.0% ----------------------------------------------------------------------- option-on-expr [38] 100.0% [44] 200(3.7%) 0(0.0%) err-lsts->split-indices .../core/regimes.rkt:263:0 loop [49] 100.0% ----------------------------------------------------------------------- ??? [39] 100.0% [45] 806(15.0%) 0(0.0%) for-loop ...e/findroot/src/core/alt-table.rkt:46:2 atab-add-altn [52] 75.2% errors [55] 24.8% ----------------------------------------------------------------------- ??? [40] 100.0% [46] 768(14.3%) 0(0.0%) egraph-run .../pkgs/egg-herbie-linux/main.rkt:49:0 egraph-add-exprs [50] 100.0% ----------------------------------------------------------------------- for-loop [41] 100.0% [47] 706(13.1%) 0(0.0%) taylor-alt ...rbie/findroot/src/mainloop.rkt:146:0 for-loop [51] 100.0% ----------------------------------------------------------------------- for-loop [42] 100.0% [48] 468(8.7%) 0(0.0%) rewrite-expression-head24 ...core/matcher.rkt:85:0 rewriter [53] 100.0% ----------------------------------------------------------------------- err-lsts->split-indices [44] 100.0% [49] 200(3.7%) 0(0.0%) loop ...herbie/findroot/src/core/regimes.rkt:314:4 for-loop [54] 100.0% ----------------------------------------------------------------------- egraph-run [46] 100.0% [50] 768(14.3%) 0(0.0%) egraph-add-exprs ...gg-herbie-linux/main.rkt:111:0 ??? [56] 100.0% ----------------------------------------------------------------------- taylor-alt [47] 100.0% [51] 706(13.1%) 0(0.0%) for-loop ...herbie/findroot/src/mainloop.rkt:152:6 ??? [70] 100.0% ----------------------------------------------------------------------- for-loop [45] 100.0% [52] 606(11.3%) 0(0.0%) atab-add-altn ...root/src/core/alt-table.rkt:194:0 errors [55] 100.0% ----------------------------------------------------------------------- rewrite-expression-head24 [48] 42.7% matcher [68] 57.3% [53] 468(8.7%) 0(0.0%) rewriter ...bie/findroot/src/core/matcher.rkt:87:2 for-loop [57] 100.0% ----------------------------------------------------------------------- loop [49] 100.0% [54] 200(3.7%) 0(0.0%) for-loop ...ie/findroot/src/core/regimes.rkt:279:4 for-loop [58] 100.0% ----------------------------------------------------------------------- for-loop [45] 14.3% for-loop [43] 14.6% .../more-scheme.rkt:261:28 [21] 28.0% atab-add-altn [52] 43.2% [55] 1402(26.1%) 0(0.0%) errors ...ies/herbie/findroot/src/points.rkt:190:0 for-loop [59] 85.3% temp85_0 [62] 14.7% ----------------------------------------------------------------------- egraph-add-exprs [50] 100.0% [56] 768(14.3%) 0(0.0%) ??? ...herbie/findroot/src/core/simplify.rkt:102:6 for-loop [61] 100.0% ----------------------------------------------------------------------- rewriter [53] 100.0% [57] 468(8.7%) 0(0.0%) for-loop ...bie/findroot/src/core/matcher.rkt:89:4 hash-ref! [60] 72.0% for-loop [63] 28.0% ----------------------------------------------------------------------- for-loop [54] 100.0% [58] 200(3.7%) 200(3.7%) for-loop ...ie/findroot/src/core/regimes.rkt:283:8 ----------------------------------------------------------------------- errors [55] 100.0% [59] 1196(22.3%) 592(11.0%) for-loop ...s/herbie/findroot/src/points.rkt:192:2 .../more-scheme.rkt:261:28 [21] 50.5% ----------------------------------------------------------------------- for-loop [15] 4.3% for-loop [14] 4.3% ??? [66] 8.6% ??? [64] 8.6% ??? [70] 17.1% loop [10] 17.1% for-loop [11] 18.2% for-loop [57] 21.7% [60] 1174(21.8%) 0(0.0%) hash-ref! .../racket/private/more-scheme.rkt:376:2 matcher [68] 39.9% ??? [64] 25.8% ??? [66] 8.6% f40 [67] 8.6% taylor-invert [8] 8.5% ??? [6] 4.3% ??? [5] 4.3% ----------------------------------------------------------------------- ??? [56] 100.0% [61] 768(14.3%) 768(14.3%) for-loop ...e/findroot/src/core/simplify.rkt:121:2 ----------------------------------------------------------------------- errors [55] 33.9% eval-const-expr [19] 66.1% [62] 608(11.3%) 0(0.0%) temp85_0 (unknown source) compile15 [65] 100.0% ----------------------------------------------------------------------- for-loop [57] 100.0% [63] 262(4.9%) 0(0.0%) for-loop ...bie/findroot/src/core/matcher.rkt:96:8 fix-up-variables [69] 100.0% ----------------------------------------------------------------------- hash-ref! [60] 100.0% [64] 706(13.1%) 0(0.0%) ??? ...s/herbie/findroot/src/core/taylor.rkt:67:15 ??? [70] 64.2% hash-ref! [60] 35.8% ----------------------------------------------------------------------- temp85_0 [62] 100.0% [65] 608(11.3%) 0(0.0%) compile15 (unknown source) temp91_0 [71] 100.0% ----------------------------------------------------------------------- hash-ref! [60] 100.0% [66] 506(9.4%) 0(0.0%) ??? ...s/herbie/findroot/src/core/taylor.rkt:44:15 hash-ref! [60] 100.0% ----------------------------------------------------------------------- parse-loop49 [77] 30.0% hash-ref! [60] 70.0% [67] 506(9.4%) 0(0.0%) f40 (unknown source) map [72] 100.0% ----------------------------------------------------------------------- hash-ref! [60] 100.0% [68] 468(8.7%) 0(0.0%) matcher ...bie/findroot/src/core/matcher.rkt:119:2 ??? [3] 54.4% rewriter [53] 45.6% ----------------------------------------------------------------------- for-loop [63] 100.0% [69] 262(4.9%) 0(0.0%) fix-up-variables ...oot/src/core/matcher.rkt:108:2 pattern-match [73] 100.0% ----------------------------------------------------------------------- loop [36] 17.6% .../more-scheme.rkt:261:28 [21] 18.5% ??? [64] 21.3% location-do [74] 21.3% for-loop [51] 21.3% [70] 1104(20.5%) 204(3.8%) ??? ...tract/private/arrow-higher-order.rkt:375:33 location-do [74] 21.3% approximate9 [2] 21.3% hash-ref! [60] 21.3% ival-mult [79] 17.6% ----------------------------------------------------------------------- compile15 [65] 100.0% [71] 608(11.3%) 0(0.0%) temp91_0 (unknown source) temp118_0 [75] 100.0% ----------------------------------------------------------------------- f40 [67] 100.0% [72] 506(9.4%) 0(0.0%) map ...t-7.5/collects/racket/private/map.rkt:35:13 parse-loop74 [13] 39.9% parse-loop49 [77] 30.0% f61 [76] 30.0% ----------------------------------------------------------------------- fix-up-variables [69] 100.0% [73] 262(4.9%) 0(0.0%) pattern-match ...indroot/src/core/matcher.rkt:29:0 for-loop [78] 100.0% ----------------------------------------------------------------------- location-do [74] 35.8% ??? [70] 64.2% [74] 706(13.1%) 0(0.0%) location-do ...rbie/findroot/src/programs.rkt:63:0 ??? [70] 64.2% location-do [74] 35.8% ----------------------------------------------------------------------- temp91_0 [71] 100.0% [75] 608(11.3%) 0(0.0%) temp118_0 (unknown source) expand-capturing-lifts [80] 100.0% ----------------------------------------------------------------------- map [72] 100.0% [76] 304(5.7%) 0(0.0%) f61 (unknown source) composed [82] 100.0% ----------------------------------------------------------------------- map [72] 100.0% [77] 304(5.7%) 0(0.0%) parse-loop49 (unknown source) f40 [67] 100.0% ----------------------------------------------------------------------- pattern-match [73] 100.0% [78] 262(4.9%) 0(0.0%) for-loop ...bie/findroot/src/core/matcher.rkt:26:9 core457 [81] 100.0% ----------------------------------------------------------------------- ??? [70] 100.0% [79] 194(3.6%) 194(3.6%) ival-mult ...ie/findroot/src/biginterval.rkt:129:0 ----------------------------------------------------------------------- loop [86] 28.0% temp118_0 [75] 72.0% [80] 844(15.7%) 200(3.7%) expand-capturing-lifts (unknown source) lambda-clause-expander [83] 48.3% loop [86] 28.0% ----------------------------------------------------------------------- ??? [20] 44.0% for-loop [78] 56.0% [81] 468(8.7%) 0(0.0%) core457 ...acket/contract/private/arr-i.rkt:976:19 or/c [84] 56.0% un-dep/maybe-chaperone [85] 44.0% ----------------------------------------------------------------------- f61 [76] 100.0% [82] 304(5.7%) 304(5.7%) composed ...ollects/racket/private/list.rkt:321:16 ----------------------------------------------------------------------- expand-capturing-lifts [80] 100.0% [83] 408(7.6%) 0(0.0%) lambda-clause-expander (unknown source) finish-bodys [89] 50.5% loop [86] 49.5% ----------------------------------------------------------------------- core457 [81] 100.0% [84] 262(4.9%) 0(0.0%) or/c ...lects/racket/contract/private/orc.rkt:16:2 build-compound-type-name [87] 100.0% ----------------------------------------------------------------------- core457 [81] 100.0% [85] 206(3.8%) 0(0.0%) un-dep/maybe-chaperone ...private/arr-i.rkt:1137:2 ??? [88] 100.0% ----------------------------------------------------------------------- apply-transformer52 [17] 4.8% lambda-clause-expander [83] 4.8% expand-capturing-lifts [80] 7.5% prepare-points-intervals [26] 7.5% loop [86] 12.3% for-loop [28] 19.1% ??? [33] 19.3% syntax-e/no-taint [12] 24.5% [86] 1046(19.5%) 0(0.0%) loop (unknown source) gf [92] 24.5% sample-multi-bounded [90] 19.3% ??? [94] 19.1% loop [86] 12.3% expand-capturing-lifts [80] 7.5% for-loop [91] 7.5% dispatch-transformer41 [7] 4.8% syntax-e [4] 4.8% ----------------------------------------------------------------------- or/c [84] 100.0% [87] 262(4.9%) 262(4.9%) build-compound-type-name ...private/guts.rkt:537:0 ----------------------------------------------------------------------- un-dep/maybe-chaperone [85] 100.0% [88] 206(3.8%) 0(0.0%) ??? ...llects/racket/contract/private/orc.rkt:88:2 ??? [93] 100.0% ----------------------------------------------------------------------- lambda-clause-expander [83] 9.1% for-loop [91] 90.9% [89] 206(3.8%) 0(0.0%) finish-bodys (unknown source) for-loop [91] 100.0% ----------------------------------------------------------------------- loop [86] 33.6% ??? [33] 66.4% [90] 602(11.2%) 0(0.0%) sample-multi-bounded ...ndroot/src/points.rkt:14:0 random-ranges [95] 100.0% ----------------------------------------------------------------------- for-loop [91] 7.2% run-module-instance!125 [97] 26.7% loop [86] 26.7% finish-bodys [89] 39.4% [91] 442(8.2%) 0(0.0%) for-loop (unknown source) finish-bodys [89] 35.9% run-module-instance!125 [97] 26.7% temp37_0 [96] 26.7% for-loop [91] 7.2% syntax-e [4] 3.6% ----------------------------------------------------------------------- loop [86] 100.0% [92] 408(7.6%) 0(0.0%) gf (unknown source) propagation-apply [98] 50.5% propagation-merge [100] 49.5% ----------------------------------------------------------------------- ??? [88] 100.0% [93] 206(3.8%) 0(0.0%) ??? ...cts/racket/contract/private/guts.rkt:835:10 ??? [99] 100.0% ----------------------------------------------------------------------- loop [86] 100.0% [94] 200(3.7%) 0(0.0%) ??? ...tlies/herbie/findroot/src/points.rkt:179:26 ??? [101] 100.0% ----------------------------------------------------------------------- sample-multi-bounded [90] 100.0% [95] 602(11.2%) 200(3.7%) random-ranges ...bie/findroot/src/common.rkt:164:0 cons/c [104] 33.6% build--> [105] 33.2% ----------------------------------------------------------------------- for-loop [91] 100.0% [96] 236(4.4%) 0(0.0%) temp37_0 (unknown source) [running body] [102] 100.0% ----------------------------------------------------------------------- for-loop [91] 100.0% [97] 236(4.4%) 0(0.0%) run-module-instance!125 (unknown source) for-loop [91] 100.0% ----------------------------------------------------------------------- gf [92] 100.0% [98] 206(3.8%) 206(3.8%) propagation-apply (unknown source) ----------------------------------------------------------------------- ??? [93] 100.0% [99] 206(3.8%) 0(0.0%) ??? ...ntract/private/arrow-higher-order.rkt:575:2 build-subcontract-late-negs [103]100.0% ----------------------------------------------------------------------- gf [92] 100.0% [100] 202(3.8%) 202(3.8%) propagation-merge (unknown source) ----------------------------------------------------------------------- ??? [94] 100.0% [101] 200(3.7%) 200(3.7%) ??? ...erbie/findroot/src/syntax/syntax.rkt:214:17 ----------------------------------------------------------------------- temp37_0 [96] 100.0% [102] 236(4.4%) 0(0.0%) [running body] .../collects/racket/format.rkt":##f .get-syntax-literal! [106] 100.0% ----------------------------------------------------------------------- ??? [99] 100.0% [103] 206(3.8%) 206(3.8%) build-subcontract-late-negs ...her-order.rkt:711:0 ----------------------------------------------------------------------- random-ranges [95] 100.0% [104] 202(3.8%) 0(0.0%) cons/c .../racket/contract/private/guts.rkt:500:15 coerce-contract [107] 100.0% ----------------------------------------------------------------------- random-ranges [95] 100.0% [105] 200(3.7%) 200(3.7%) build--> ...act/private/arrow-val-first.rkt:1214:0 ----------------------------------------------------------------------- [running body] [102] 100.0% [106] 236(4.4%) 0(0.0%) .get-syntax-literal! (unknown source) .deserialize-syntax [108] 100.0% ----------------------------------------------------------------------- cons/c [104] 100.0% [107] 202(3.8%) 0(0.0%) coerce-contract ...contract/private/guts.rkt:307:0 coerce-contract/f [109] 100.0% ----------------------------------------------------------------------- .get-syntax-literal! [106] 100.0% [108] 236(4.4%) 236(4.4%) .deserialize-syntax (unknown source) ----------------------------------------------------------------------- coerce-contract [107] 100.0% [109] 202(3.8%) 0(0.0%) coerce-contract/f ...ntract/private/guts.rkt:372:0 coerce-simple-value [110] 100.0% ----------------------------------------------------------------------- coerce-contract/f [109] 100.0% [110] 202(3.8%) 202(3.8%) coerce-simple-value ...ract/private/guts.rkt:385:0 -----------------------------------------------------------------------