Profiling results
-----------------
  Total cpu time observed: 936ms (out of 1028ms)
  Number of samples taken: 3 (once every 312ms)

================================================================
                              Caller
 Idx  Total       Self      Name+src                      Local%
      ms(pct)     ms(pct)     Callee
================================================================
                              run [6]                      50.0%
 [1] 936(100.0%)   0(0.0%)  ??? ...lects/racket/private/more-scheme.rkt:261:28
                              profile-thunk16 [4]          50.0%
                              run-improve40 [3]            50.0%
----------------------------------------------------------------
                              ??? [12]                    100.0%
 [2] 312(33.3%)    0(0.0%)  ival-div ...ie/better-rr/src/biginterval.rkt:141:0
                              fold-binary-pred [5]        100.0%
----------------------------------------------------------------
                              ??? [1]                     100.0%
 [3] 936(100.0%)   0(0.0%)  run-improve40 .../better-rr/src/mainloop.rkt:336:0
                              prepare-points-intervals [7]100.0%
----------------------------------------------------------------
                              ??? [1]                     100.0%
 [4] 936(100.0%)   0(0.0%)  profile-thunk16 ...e/pkgs/profile-lib/main.rkt:9:0
                              run [6]                     100.0%
----------------------------------------------------------------
                              ival-div [2]                100.0%
 [5] 312(33.3%)    0(0.0%)  fold-binary-pred ...gfloat/bigfloat-mpfr.rkt:117:0
                              ??? [12]                    100.0%
----------------------------------------------------------------
                              profile-thunk16 [4]         100.0%
 [6] 936(100.0%)   0(0.0%)  run ...et-7.0/share/pkgs/profile-lib/main.rkt:39:2
                              ??? [1]                     100.0%
----------------------------------------------------------------
                              run-improve40 [3]           100.0%
 [7] 936(100.0%)   0(0.0%)  prepare-points-intervals ...r/src/points.rkt:133:0
                              loop [8]                    100.0%
----------------------------------------------------------------
                              prepare-points-intervals [7]100.0%
 [8] 936(100.0%)   0(0.0%)  loop ...lies/herbie/better-rr/src/points.rkt:145:4
                              loop [9]                    100.0%
----------------------------------------------------------------
                              loop [8]                    100.0%
 [9] 936(100.0%)   0(0.0%)  loop ...lies/herbie/better-rr/src/points.rkt:104:2
                              ??? [10]                    100.0%
----------------------------------------------------------------
                              loop [9]                    100.0%
[10] 936(100.0%)   0(0.0%)  ??? ...ies/herbie/better-rr/src/programs.rkt:146:2
                              ??? [11]                    100.0%
----------------------------------------------------------------
                              ??? [10]                    100.0%
[11] 936(100.0%)   0(0.0%)  ??? ...t-7.0/collects/racket/private/kw.rkt:592:14
                              ??? [12]                    100.0%
----------------------------------------------------------------
                              fold-binary-pred [5]         16.7%
                              ??? [11]                     83.3%
[12] 936(100.0%) 312(33.3%) ??? ...tract/private/arrow-higher-order.rkt:361:33
                              ival-sub [13]                33.8%
                              ival-fabs [14]               32.9%
                              ival-div [2]                 16.7%
----------------------------------------------------------------
                              ??? [12]                    100.0%
[13] 316(33.8%)    0(0.0%)  ival-sub ...bie/better-rr/src/biginterval.rkt:93:0
                              ??? [15]                    100.0%
----------------------------------------------------------------
                              ??? [12]                    100.0%
[14] 308(32.9%)    0(0.0%)  ival-fabs ...e/better-rr/src/biginterval.rkt:349:0
                              ??? [15]                    100.0%
----------------------------------------------------------------
                              ival-fabs [14]               49.4%
                              ival-sub [13]                50.6%
[15] 624(66.7%)    0(0.0%)  ??? ...-racket/utils/simple-result-arrow.rkt:39:12
                              bfsub [16]                   50.6%
                              bfneg [17]                   49.4%
----------------------------------------------------------------
                              ??? [15]                    100.0%
[16] 316(33.8%)    0(0.0%)  bfsub ...-lib/math/private/bigfloat/mpfr.rkt:821:4
                              new-mpfr [18]               100.0%
----------------------------------------------------------------
                              ??? [15]                    100.0%
[17] 308(32.9%)    0(0.0%)  bfneg ...-lib/math/private/bigfloat/mpfr.rkt:618:4
                              ??? [19]                    100.0%
----------------------------------------------------------------
                              bfsub [16]                  100.0%
[18] 316(33.8%)  316(33.8%) new-mpfr ...b/math/private/bigfloat/mpfr.rkt:335:0
----------------------------------------------------------------
                              bfneg [17]                  100.0%
[19] 308(32.9%)  308(32.9%) ??? /opt/racket-7.0/collects/ffi/unsafe.rkt:898:4
----------------------------------------------------------------