9.746 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.045 * * * [progress]: [2/2] Setting up program.
0.048 * [progress]: [Phase 2 of 3] Improving.
0.049 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (+ x (* v dt)) (* (* (* (- (* a 4.0) a_prev) dt) dt) (/ 1.0 6.0)))
0.051 * * [simplify]: iteration  0 :  34  enodes  (cost  9 )
0.052 * * [simplify]: iteration  1 :  75  enodes  (cost  9 )
0.054 * * [simplify]: iteration  2 :  216  enodes  (cost  9 )
0.057 * * [simplify]: iteration  3 :  588  enodes  (cost  9 )
0.065 * * [simplify]: iteration  4 :  1351  enodes  (cost  9 )
0.085 * * [simplify]: iteration  5 :  2507  enodes  (cost  9 )
0.116 * * [simplify]: iteration  6 :  3075  enodes  (cost  9 )
0.154 * * [simplify]: iteration  7 :  3406  enodes  (cost  8 )
0.200 * * [simplify]: iteration  8 :  4023  enodes  (cost  8 )
0.256 * * [simplify]: iteration  9 :  5002  enodes  (cost  8 )
0.257 * [simplify]: Simplified to:
   (+ (* dt (+ (* (- (* a 4.0) a_prev) (* dt (/ 1.0 6.0))) v)) x)
0.261 * [progress]: [Phase 3 of 3] Extracting.
0.261 * * [regime]: Finding splitpoints for: (#<alt (λ (x v dt a a_prev) (+ (* dt (+ (* (- (* a 4.0) a_prev) (* dt (/ 1.0 6.0))) v)) x))> #<alt (λ (x v dt a a_prev) (+ (+ x (* v dt)) (* (* (* (- (* a 4.0) a_prev) dt) dt) (/ 1.0 6.0))))>)
0.262 * * * [regime-changes]: Trying 8 branch expressions: ((* a 4.0) (- (* a 4.0) a_prev) (+ (+ x (* v dt)) (* (* (* (- (* a 4.0) a_prev) dt) dt) (/ 1.0 6.0))) a_prev a dt v x)
0.262 * * * * [regimes]: Trying to branch on (* a 4.0) from (#<alt (λ (x v dt a a_prev) (+ (* dt (+ (* (- (* a 4.0) a_prev) (* dt (/ 1.0 6.0))) v)) x))> #<alt (λ (x v dt a a_prev) (+ (+ x (* v dt)) (* (* (* (- (* a 4.0) a_prev) dt) dt) (/ 1.0 6.0))))>)
0.318 * * * * [regimes]: Trying to branch on (- (* a 4.0) a_prev) from (#<alt (λ (x v dt a a_prev) (+ (* dt (+ (* (- (* a 4.0) a_prev) (* dt (/ 1.0 6.0))) v)) x))> #<alt (λ (x v dt a a_prev) (+ (+ x (* v dt)) (* (* (* (- (* a 4.0) a_prev) dt) dt) (/ 1.0 6.0))))>)
0.370 * * * * [regimes]: Trying to branch on (+ (+ x (* v dt)) (* (* (* (- (* a 4.0) a_prev) dt) dt) (/ 1.0 6.0))) from (#<alt (λ (x v dt a a_prev) (+ (* dt (+ (* (- (* a 4.0) a_prev) (* dt (/ 1.0 6.0))) v)) x))> #<alt (λ (x v dt a a_prev) (+ (+ x (* v dt)) (* (* (* (- (* a 4.0) a_prev) dt) dt) (/ 1.0 6.0))))>)
0.428 * * * * [regimes]: Trying to branch on a_prev from (#<alt (λ (x v dt a a_prev) (+ (* dt (+ (* (- (* a 4.0) a_prev) (* dt (/ 1.0 6.0))) v)) x))> #<alt (λ (x v dt a a_prev) (+ (+ x (* v dt)) (* (* (* (- (* a 4.0) a_prev) dt) dt) (/ 1.0 6.0))))>)
0.483 * * * * [regimes]: Trying to branch on a from (#<alt (λ (x v dt a a_prev) (+ (* dt (+ (* (- (* a 4.0) a_prev) (* dt (/ 1.0 6.0))) v)) x))> #<alt (λ (x v dt a a_prev) (+ (+ x (* v dt)) (* (* (* (- (* a 4.0) a_prev) dt) dt) (/ 1.0 6.0))))>)
0.536 * * * * [regimes]: Trying to branch on dt from (#<alt (λ (x v dt a a_prev) (+ (* dt (+ (* (- (* a 4.0) a_prev) (* dt (/ 1.0 6.0))) v)) x))> #<alt (λ (x v dt a a_prev) (+ (+ x (* v dt)) (* (* (* (- (* a 4.0) a_prev) dt) dt) (/ 1.0 6.0))))>)
0.590 * * * * [regimes]: Trying to branch on v from (#<alt (λ (x v dt a a_prev) (+ (* dt (+ (* (- (* a 4.0) a_prev) (* dt (/ 1.0 6.0))) v)) x))> #<alt (λ (x v dt a a_prev) (+ (+ x (* v dt)) (* (* (* (- (* a 4.0) a_prev) dt) dt) (/ 1.0 6.0))))>)
0.643 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x v dt a a_prev) (+ (* dt (+ (* (- (* a 4.0) a_prev) (* dt (/ 1.0 6.0))) v)) x))> #<alt (λ (x v dt a a_prev) (+ (+ x (* v dt)) (* (* (* (- (* a 4.0) a_prev) dt) dt) (/ 1.0 6.0))))>)
0.698 * * * [regime]: Found split indices: #<option (#s(si 1 255))>
0.698 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (+ x (* v dt)) (* (* (* (- (* a 4.0) a_prev) dt) dt) (/ 1.0 6.0)))
0.698 * * [simplify]: iteration  0 :  24  enodes  (cost  9 )
0.699 * * [simplify]: iteration  1 :  24  enodes  (cost  9 )
0.699 * [simplify]: Simplified to:
   (+ (+ x (* v dt)) (* (* (* (- (* a 4.0) a_prev) dt) dt) (/ 1.0 6.0)))
2.416 * [regime-testing]: End program error score: 0.17889716940027628