Profiling results
-----------------
  Total cpu time observed: 1352ms (out of 1968ms)
  Number of samples taken: 4 (once every 338ms)

========================================================
                               Caller
 Idx   Total       Self      Name+src             Local%
       ms(pct)     ms(pct)     Callee
========================================================
                               ??? [3]            100.0%
 [1] 1352(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] 1352(100.0%)   0(0.0%)  run ...et-7.0/share/pkgs/profile-lib/main.rkt:39:2
                               ??? [3]            100.0%
--------------------------------------------------------
                               run [2]             50.0%
 [3] 1352(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] 1352(100.0%)   0(0.0%)  run-improve47 ...us-cleanup/src/mainloop.rkt:342:0
                               prepare-points [5] 100.0%
--------------------------------------------------------
                               run-improve47 [4]  100.0%
 [5] 1352(100.0%)   0(0.0%)  prepare-points ...ous-cleanup/src/points.rkt:146:0
                               loop [6]           100.0%
--------------------------------------------------------
                               prepare-points [5] 100.0%
 [6] 1352(100.0%)   0(0.0%)  loop ...erbie/various-cleanup/src/points.rkt:122:4
                               loop [7]           100.0%
--------------------------------------------------------
                               loop [6]           100.0%
 [7] 1352(100.0%) 664(49.1%) loop ...herbie/various-cleanup/src/points.rkt:81:2
                               ??? [8]             50.9%
--------------------------------------------------------
                               loop [7]           100.0%
 [8]  688(50.9%)    0(0.0%)  ??? ...rbie/various-cleanup/src/programs.rkt:108:2
                               ??? [9]            100.0%
--------------------------------------------------------
                               ??? [8]            100.0%
 [9]  688(50.9%)    0(0.0%)  ??? ...tract/private/arrow-higher-order.rkt:357:33
                               mk-ival [10]       100.0%
--------------------------------------------------------
                               ??? [9]            100.0%
[10]  688(50.9%)    0(0.0%)  mk-ival ...arious-cleanup/src/biginterval.rkt:57:0
                               bf [11]            100.0%
--------------------------------------------------------
                               mk-ival [10]       100.0%
[11]  688(50.9%)  358(26.5%) bf ...ath-lib/math/private/bigfloat/mpfr.rkt:601:2
                               ??? [12]            48.0%
--------------------------------------------------------
                               bf [11]            100.0%
[12]  330(24.4%)  330(24.4%) ??? /opt/racket-7.0/collects/ffi/unsafe.rkt:898:4
--------------------------------------------------------