\[\]

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2021043 
(FPCore ()
  :name "Rectangular parallelepiped of dimension a×b×c"
  :precision binary64
  (* 2.0 (+ (+ (* 1.0 (/ 1.0 9.0)) (* (/ 1.0 9.0) (/ 1.0 9.0))) (* (/ 1.0 9.0) 1.0))))

Backtrace

cdr: contract violation expected: pair? given: 'aLC
(unnamed)/data/pavpan/nightlies/herbie/mpmf-cost-multi-input/src/programs.rkt2162
(unnamed)/data/pavpan/nightlies/herbie/mpmf-cost-multi-input/src/programs.rkt1502
(unnamed)/data/pavpan/nightlies/herbie/mpmf-cost-multi-input/src/points.rkt1694
errors/data/pavpan/nightlies/herbie/mpmf-cost-multi-input/src/points.rkt1660
make-alt-table/data/pavpan/nightlies/herbie/mpmf-cost-multi-input/src/core/alt-table.rkt330
(unnamed)/opt/racket-7.9/collects/racket/contract/private/arrow-val-first.rkt48618
setup-prog!/data/pavpan/nightlies/herbie/mpmf-cost-multi-input/src/mainloop.rkt800
for-loop/data/pavpan/nightlies/herbie/mpmf-cost-multi-input/src/mainloop.rkt4534
run-improve/data/pavpan/nightlies/herbie/mpmf-cost-multi-input/src/mainloop.rkt4470
(unnamed)/data/pavpan/nightlies/herbie/mpmf-cost-multi-input/src/sandbox.rkt546
run/opt/racket-7.9/share/pkgs/profile-lib/main.rkt392
profile-thunk/opt/racket-7.9/share/pkgs/profile-lib/main.rkt90
(unnamed)/opt/racket-7.9/collects/racket/engine.rkt4224

Reproduce

herbie shell --seed 2021043 
(FPCore ()
  :name "Rectangular parallelepiped of dimension a×b×c"
  :precision binary64
  (* 2.0 (+ (+ (* 1.0 (/ 1.0 9.0)) (* (/ 1.0 9.0) (/ 1.0 9.0))) (* (/ 1.0 9.0) 1.0))))