Profiling results
-----------------
  Total cpu time observed: 672ms (out of 816ms)
  Number of samples taken: 3 (once every 224ms)

==================================================================
                              Caller
 Idx  Total       Self      Name+src                        Local%
      ms(pct)     ms(pct)     Callee
==================================================================
 [1] 672(100.0%)   0(0.0%)  ??? ...lects/racket/private/more-scheme.rkt:261:28
                              profile-thunk16 [2]           100.0%
------------------------------------------------------------------
                              ??? [1]                       100.0%
 [2] 672(100.0%)   0(0.0%)  profile-thunk16 ...e/pkgs/profile-lib/main.rkt:9:0
                              run [3]                       100.0%
------------------------------------------------------------------
                              profile-thunk16 [2]           100.0%
 [3] 672(100.0%)   0(0.0%)  run ...et-7.5/share/pkgs/profile-lib/main.rkt:39:2
                              .../more-scheme.rkt:261:28 [4]100.0%
------------------------------------------------------------------
                              run [3]                       100.0%
 [4] 672(100.0%)   0(0.0%)  .../more-scheme.rkt:261:28 (unknown source)
                              run-improve47 [5]             100.0%
------------------------------------------------------------------
                              .../more-scheme.rkt:261:28 [4]100.0%
 [5] 672(100.0%)   0(0.0%)  run-improve47 ...bie/master/src/mainloop.rkt:346:0
                              prepare-points-intervals [6]  100.0%
------------------------------------------------------------------
                              run-improve47 [5]             100.0%
 [6] 672(100.0%)   0(0.0%)  prepare-points-intervals ...r/src/points.rkt:120:0
                              loop [7]                      100.0%
------------------------------------------------------------------
                              prepare-points-intervals [6]  100.0%
 [7] 672(100.0%)   0(0.0%)  loop ...ghtlies/herbie/master/src/points.rkt:132:4
                              loop [8]                      100.0%
------------------------------------------------------------------
                              loop [7]                      100.0%
 [8] 672(100.0%) 240(35.7%) loop ...ightlies/herbie/master/src/points.rkt:79:2
                              ??? [9]                        64.3%
------------------------------------------------------------------
                              loop [8]                      100.0%
 [9] 432(64.3%)  208(31.0%) ??? ...tract/private/arrow-higher-order.rkt:379:33
                              ival-sqrt [10]                 51.9%
------------------------------------------------------------------
                              ??? [9]                       100.0%
[10] 224(33.3%)    0(0.0%)  ival-sqrt ...rbie/master/src/biginterval.rkt:212:0
                              bfsqrt [11]                   100.0%
------------------------------------------------------------------
                              ival-sqrt [10]                100.0%
[11] 224(33.3%)    0(0.0%)  bfsqrt ...lib/math/private/bigfloat/mpfr.rkt:632:4
                              new-mpfr [12]                 100.0%
------------------------------------------------------------------
                              bfsqrt [11]                   100.0%
[12] 224(33.3%)  224(33.3%) new-mpfr ...b/math/private/bigfloat/mpfr.rkt:348:0
------------------------------------------------------------------