7.425 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.043 * * * [progress]: [2/2] Setting up program.
0.047 * [progress]: [Phase 2 of 3] Improving.
0.048 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (+ x (* v dt)) (* (* (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) dt) dt))
0.050 * * [simplify]: iteration  0 :  36  enodes  (cost  10 )
0.051 * * [simplify]: iteration  1 :  69  enodes  (cost  9 )
0.053 * * [simplify]: iteration  2 :  153  enodes  (cost  9 )
0.055 * * [simplify]: iteration  3 :  449  enodes  (cost  9 )
0.063 * * [simplify]: iteration  4 :  955  enodes  (cost  9 )
0.074 * * [simplify]: iteration  5 :  1398  enodes  (cost  9 )
0.090 * * [simplify]: iteration  6 :  1662  enodes  (cost  9 )
0.111 * * [simplify]: iteration  7 :  2002  enodes  (cost  9 )
0.139 * * [simplify]: iteration  8 :  2556  enodes  (cost  9 )
0.192 * * [simplify]: iteration  9 :  3645  enodes  (cost  9 )
0.238 * * [simplify]: iteration  10 :  5001  enodes  (cost  9 )
0.239 * [simplify]: Simplified to:
   (+ (* dt (+ v (* (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) dt))) x)
0.244 * [progress]: [Phase 3 of 3] Extracting.
0.244 * * [regime]: Finding splitpoints for: (#<alt (λ (x v dt a aprev) (+ (* dt (+ v (* (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) dt))) x))> #<alt (λ (x v dt a aprev) (+ (+ x (* v dt)) (* (* (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) dt) dt)))>)
0.244 * * * [regime-changes]: Trying 9 branch expressions: ((* aprev (/ 1.0 6.0)) (* a (/ 2.0 3.0)) (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) (+ (+ x (* v dt)) (* (* (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) dt) dt)) aprev a dt v x)
0.244 * * * * [regimes]: Trying to branch on (* aprev (/ 1.0 6.0)) from (#<alt (λ (x v dt a aprev) (+ (* dt (+ v (* (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) dt))) x))> #<alt (λ (x v dt a aprev) (+ (+ x (* v dt)) (* (* (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) dt) dt)))>)
0.302 * * * * [regimes]: Trying to branch on (* a (/ 2.0 3.0)) from (#<alt (λ (x v dt a aprev) (+ (* dt (+ v (* (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) dt))) x))> #<alt (λ (x v dt a aprev) (+ (+ x (* v dt)) (* (* (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) dt) dt)))>)
0.358 * * * * [regimes]: Trying to branch on (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) from (#<alt (λ (x v dt a aprev) (+ (* dt (+ v (* (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) dt))) x))> #<alt (λ (x v dt a aprev) (+ (+ x (* v dt)) (* (* (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) dt) dt)))>)
0.414 * * * * [regimes]: Trying to branch on (+ (+ x (* v dt)) (* (* (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) dt) dt)) from (#<alt (λ (x v dt a aprev) (+ (* dt (+ v (* (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) dt))) x))> #<alt (λ (x v dt a aprev) (+ (+ x (* v dt)) (* (* (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) dt) dt)))>)
0.476 * * * * [regimes]: Trying to branch on aprev from (#<alt (λ (x v dt a aprev) (+ (* dt (+ v (* (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) dt))) x))> #<alt (λ (x v dt a aprev) (+ (+ x (* v dt)) (* (* (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) dt) dt)))>)
0.526 * * * * [regimes]: Trying to branch on a from (#<alt (λ (x v dt a aprev) (+ (* dt (+ v (* (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) dt))) x))> #<alt (λ (x v dt a aprev) (+ (+ x (* v dt)) (* (* (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) dt) dt)))>)
0.583 * * * * [regimes]: Trying to branch on dt from (#<alt (λ (x v dt a aprev) (+ (* dt (+ v (* (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) dt))) x))> #<alt (λ (x v dt a aprev) (+ (+ x (* v dt)) (* (* (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) dt) dt)))>)
0.634 * * * * [regimes]: Trying to branch on v from (#<alt (λ (x v dt a aprev) (+ (* dt (+ v (* (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) dt))) x))> #<alt (λ (x v dt a aprev) (+ (+ x (* v dt)) (* (* (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) dt) dt)))>)
0.687 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x v dt a aprev) (+ (* dt (+ v (* (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) dt))) x))> #<alt (λ (x v dt a aprev) (+ (+ x (* v dt)) (* (* (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) dt) dt)))>)
0.742 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
0.742 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (* dt (+ v (* (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) dt))) x)
0.746 * * [simplify]: iteration  0 :  24  enodes  (cost  9 )
0.747 * * [simplify]: iteration  1 :  24  enodes  (cost  9 )
0.747 * [simplify]: Simplified to:
   (+ (* dt (+ v (* (- (* a (/ 2.0 3.0)) (* aprev (/ 1.0 6.0))) dt))) x)
2.519 * [regime-testing]: End program error score: 0.12149843792324283