7.782 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.025 * * * [progress]: [2/2] Setting up program.
0.029 * [progress]: [Phase 2 of 3] Improving.
0.029 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ (- (* a b) (* 2.0 (* c d))) (* 2.0 (* c d)))
0.031 * * [simplify]: iteration  0 :  22  enodes  (cost  7 )
0.032 * * [simplify]: iteration  1 :  109  enodes  (cost  5 )
0.035 * * [simplify]: iteration  2 :  497  enodes  (cost  5 )
0.052 * * [simplify]: iteration  3 :  4891  enodes  (cost  5 )
0.304 * * [simplify]: iteration  4 :  5001  enodes  (cost  5 )
0.307 * [simplify]: Simplified to:
   (+ (/ (* a b) (* 2.0 (* c d))) -1)
0.316 * [progress]: [Phase 3 of 3] Extracting.
0.316 * * [regime]: Finding splitpoints for: (#<alt (λ (a b c d) (+ (/ (* a b) (* 2.0 (* c d))) -1))> #<alt (λ (a b c d) (/ (- (* a b) (* 2.0 (* c d))) (* 2.0 (* c d))))>)
0.316 * * * [regime-changes]: Trying 8 branch expressions: ((* c d) (* 2.0 (* c d)) (* a b) (/ (- (* a b) (* 2.0 (* c d))) (* 2.0 (* c d))) d c b a)
0.316 * * * * [regimes]: Trying to branch on (* c d) from (#<alt (λ (a b c d) (+ (/ (* a b) (* 2.0 (* c d))) -1))> #<alt (λ (a b c d) (/ (- (* a b) (* 2.0 (* c d))) (* 2.0 (* c d))))>)
0.359 * * * * [regimes]: Trying to branch on (* 2.0 (* c d)) from (#<alt (λ (a b c d) (+ (/ (* a b) (* 2.0 (* c d))) -1))> #<alt (λ (a b c d) (/ (- (* a b) (* 2.0 (* c d))) (* 2.0 (* c d))))>)
0.404 * * * * [regimes]: Trying to branch on (* a b) from (#<alt (λ (a b c d) (+ (/ (* a b) (* 2.0 (* c d))) -1))> #<alt (λ (a b c d) (/ (- (* a b) (* 2.0 (* c d))) (* 2.0 (* c d))))>)
0.449 * * * * [regimes]: Trying to branch on (/ (- (* a b) (* 2.0 (* c d))) (* 2.0 (* c d))) from (#<alt (λ (a b c d) (+ (/ (* a b) (* 2.0 (* c d))) -1))> #<alt (λ (a b c d) (/ (- (* a b) (* 2.0 (* c d))) (* 2.0 (* c d))))>)
0.492 * * * * [regimes]: Trying to branch on d from (#<alt (λ (a b c d) (+ (/ (* a b) (* 2.0 (* c d))) -1))> #<alt (λ (a b c d) (/ (- (* a b) (* 2.0 (* c d))) (* 2.0 (* c d))))>)
0.537 * * * * [regimes]: Trying to branch on c from (#<alt (λ (a b c d) (+ (/ (* a b) (* 2.0 (* c d))) -1))> #<alt (λ (a b c d) (/ (- (* a b) (* 2.0 (* c d))) (* 2.0 (* c d))))>)
0.581 * * * * [regimes]: Trying to branch on b from (#<alt (λ (a b c d) (+ (/ (* a b) (* 2.0 (* c d))) -1))> #<alt (λ (a b c d) (/ (- (* a b) (* 2.0 (* c d))) (* 2.0 (* c d))))>)
0.626 * * * * [regimes]: Trying to branch on a from (#<alt (λ (a b c d) (+ (/ (* a b) (* 2.0 (* c d))) -1))> #<alt (λ (a b c d) (/ (- (* a b) (* 2.0 (* c d))) (* 2.0 (* c d))))>)
0.670 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
0.670 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (/ (* a b) (* 2.0 (* c d))) -1)
0.671 * * [simplify]: iteration  0 :  15  enodes  (cost  5 )
0.671 * * [simplify]: iteration  1 :  15  enodes  (cost  5 )
0.671 * [simplify]: Simplified to:
   (+ (/ (* a b) (* 2.0 (* c d))) -1)
1.829 * [regime-testing]: End program error score: 6.387126566164571