Profiling results
-----------------
  Total cpu time observed: 1270ms (out of 1556ms)
  Number of samples taken: 4 (once every 318ms)

=================================================================
                               Caller
 Idx   Total       Self      Name+src                      Local%
       ms(pct)     ms(pct)     Callee
=================================================================
                               ??? [3]                     100.0%
 [1] 1270(100.0%)   0(0.0%)  profile-thunk16 ...e/pkgs/profile-lib/main.rkt:9:0
                               run [2]                     100.0%
-----------------------------------------------------------------
                               profile-thunk16 [1]         100.0%
 [2] 1270(100.0%)   0(0.0%)  run ...et-7.2/share/pkgs/profile-lib/main.rkt:39:2
                               ??? [3]                     100.0%
-----------------------------------------------------------------
                               run [2]                      50.0%
 [3] 1270(100.0%)   0(0.0%)  ??? ...lects/racket/private/more-scheme.rkt:261:28
                               profile-thunk16 [1]          50.0%
                               run-improve47 [4]            50.0%
-----------------------------------------------------------------
                               ??? [3]                     100.0%
 [4] 1270(100.0%)   0(0.0%)  run-improve47 ...bie/master/src/mainloop.rkt:345:0
                               prepare-points-intervals [5]100.0%
-----------------------------------------------------------------
                               run-improve47 [4]           100.0%
 [5] 1270(100.0%)   0(0.0%)  prepare-points-intervals ...r/src/points.rkt:110:0
                               loop [6]                    100.0%
-----------------------------------------------------------------
                               prepare-points-intervals [5]100.0%
 [6] 1270(100.0%)   0(0.0%)  loop ...ghtlies/herbie/master/src/points.rkt:123:4
                               loop [7]                    100.0%
-----------------------------------------------------------------
                               loop [6]                    100.0%
 [7] 1270(100.0%)   0(0.0%)  loop ...ightlies/herbie/master/src/points.rkt:81:2
                               ??? [8]                     100.0%
-----------------------------------------------------------------
                               loop [7]                    100.0%
 [8] 1270(100.0%)   0(0.0%)  ??? ...htlies/herbie/master/src/programs.rkt:115:2
                               ??? [9]                     100.0%
-----------------------------------------------------------------
                               ??? [8]                     100.0%
 [9] 1270(100.0%) 634(49.9%) ??? ...t-7.2/collects/racket/private/kw.rkt:594:14
                               ??? [10]                     50.1%
-----------------------------------------------------------------
                               ??? [9]                     100.0%
[10]  636(50.1%)    0(0.0%)  ??? ...tract/private/arrow-higher-order.rkt:364:33
                               ival-sqrt [11]               50.9%
                               ival-add [12]                49.1%
-----------------------------------------------------------------
                               ??? [10]                    100.0%
[11]  324(25.5%)    0(0.0%)  ival-sqrt ...rbie/master/src/biginterval.rkt:197:0
                               bfsqrt [13]                 100.0%
-----------------------------------------------------------------
                               ??? [10]                    100.0%
[12]  312(24.6%)    0(0.0%)  ival-add ...herbie/master/src/biginterval.rkt:93:0
                               bfadd [14]                  100.0%
-----------------------------------------------------------------
                               ival-sqrt [11]              100.0%
[13]  324(25.5%)    0(0.0%)  bfsqrt ...lib/math/private/bigfloat/mpfr.rkt:618:4
                               ??? [15]                    100.0%
-----------------------------------------------------------------
                               ival-add [12]               100.0%
[14]  312(24.6%)    0(0.0%)  bfadd ...-lib/math/private/bigfloat/mpfr.rkt:821:4
                               ??? [15]                    100.0%
-----------------------------------------------------------------
                               bfadd [14]                   49.1%
                               bfsqrt [13]                  50.9%
[15]  636(50.1%)  636(50.1%) ??? /opt/racket-7.2/collects/ffi/unsafe.rkt:905:4
-----------------------------------------------------------------