Please check calculations for Random Search Optimization problem

My calculation of speeds:

          1   3   3   3   1  // initial speeds
3 +0.6    1   3   3 3.6   1
4 +1.3    1   3   3 3.6 2.3
2 -0.1    1   3 2.9 3.6 2.3
4 +1.1    1   3 2.9 3.6 3.4
3 -1.2    1   3 2.9 2.4 3.4
3 +1.8    1   3 2.9 4.2 3.4
3 +1.2    1   3 2.9 5.4 3.4
1 -0.4    1 2.6 2.9 5.4 3.4
0 +0.8  1.8 2.6 2.9 5.4 3.4
0 -0.7  1.1 2.6 2.9 5.4 3.4
2 -1.8  1.1 2.6 2.9 5.4 3.4  // not valid: difference between 1.1 and 5.4 is greater then 3
4 -0.6  1.1 2.6 2.9 5.4 2.8
4 +0.3  1.1 2.6 2.9 5.4 3.1
4 -1.1  1.1 2.6 2.9 5.4 3.1  // not valid: difference between 5.4 and 2.0 is greater then 3
4 -0.3  1.1 2.6 2.9 5.4 2.8
3 -1.3  1.1 2.6 2.9 4.1 2.8
3 -1.8  1.1 2.6 2.9 2.3 2.8
1 -1.5  1.1 1.1 2.9 2.3 2.8
0 -1.6  1.1 1.1 2.9 2.3 2.8  // not valid: speed goes to zero of below
3 -1.6  1.1 1.1 2.9 0.7 2.8
1 -1.2  1.1 1.1 2.9 0.7 2.8  // not valid: speed goes to zero of below
0 -0.7  0.4 1.1 2.9 0.7 2.8
2 +0.2  0.4 1.1 3.1 0.7 2.8
3 +1    0.4 1.1 3.1 1.7 2.8
0 +1.7  2.1 1.1 3.1 1.7 2.8
3 +1.9  2.1 1.1 3.1 3.6 2.8
3 +1.6  2.1 1.1 3.1 5.2 2.8
4 -1.8  2.1 1.1 3.1 5.2 2.8  // not valid: difference between 5.2 and 1.0 is greater then 3
0 -0.9  1.2 1.1 3.1 5.2 2.8
0 -1.7  1.2 1.1 3.1 5.2 2.8  // not valid: speed goes to zero of below
2 +0.1  1.2 1.1 3.2 5.2 2.8
1 -1.9  1.2 1.1 3.2 5.2 2.8  // not valid: speed goes to zero of below, difference between -0.8 and 3.2 is greater then 3
4 -1.5  1.2 1.1 3.2 5.2 2.8  // not valid: difference between 5.2 and 1.3 is greater then 3
2 -1.3  1.2 1.1 3.2 5.2 2.8  // not valid: difference between 1.9 and 5.2 is greater then 3
1 -0.6  1.2 0.5 3.2 5.2 2.8
1 -1    1.2 0.5 3.2 5.2 2.8  // not valid: speed goes to zero of below, difference between -0.5 and 3.2 is greater then 3
2 -0.5  1.2 0.5 2.7 5.2 2.8
2 +1.3  1.2 0.5 2.7 5.2 2.8  // not valid: difference between 0.5 and 4.0 is greater then 3
3 -1.8  1.2 0.5 2.7 3.4 2.8
1 +0.5  1.2 1.0 2.7 3.4 2.8
0 -1.1  0.1 1.0 2.7 3.4 2.8
2 +0.6  0.1 1.0 3.3 3.4 2.8
2 +1    0.1 1.0 3.3 3.4 2.8  // not valid: difference between 1.0 and 4.3 is greater then 3
0 -0.5  0.1 1.0 3.3 3.4 2.8  // not valid: speed goes to zero of below
0 +1.5  1.6 1.0 3.3 3.4 2.8
2 +1.2  1.6 1.0 3.3 3.4 2.8  // not valid: difference between 1.0 and 4.5 is greater then 3
4 +1    1.6 1.0 3.3 3.4 3.8
0 +1.6  1.6 1.0 3.3 3.4 3.8  // not valid: first speed exceeds 3
1 +0.3  1.6 1.3 3.3 3.4 3.8
0 +0.6  2.2 1.3 3.3 3.4 3.8
4 +0.2  2.2 1.3 3.3 3.4 4.0
0 +0.2  2.4 1.3 3.3 3.4 4.0
0 -1.7  0.7 1.3 3.3 3.4 4.0
4 -0.1  0.7 1.3 3.3 3.4 3.9
0 -1.1  0.7 1.3 3.3 3.4 3.9  // not valid: speed goes to zero of below
2 -1.6  0.7 1.3 1.7 3.4 3.9
0 +1.5  2.2 1.3 1.7 3.4 3.9
2 +0.3  2.2 1.3 2.0 3.4 3.9
4 +0.4  2.2 1.3 2.0 3.4 4.3
4 -1.7  2.2 1.3 2.0 3.4 2.6
3 -1.8  2.2 1.3 2.0 1.6 2.6
4 -1.6  2.2 1.3 2.0 1.6 1.0
2 +0.4  2.2 1.3 2.4 1.6 1.0
2 +0.3  2.2 1.3 2.7 1.6 1.0
3 -1.3  2.2 1.3 2.7 0.3 1.0
0 +0.3  2.5 1.3 2.7 0.3 1.0
4 +0.3  2.5 1.3 2.7 0.3 1.3
4 +1.5  2.5 1.3 2.7 0.3 2.8
2 +1.8  2.5 1.3 2.7 0.3 2.8  // not valid: difference between 4.5 and 0.3 is greater then 3
4 +0.5  2.5 1.3 2.7 0.3 3.3
3 +1.3  2.5 1.3 2.7 1.6 3.3
1 +1    2.5 2.3 2.7 1.6 3.3
3 +0.7  2.5 2.3 2.7 2.3 3.3
1 +1.6  2.5 3.9 2.7 2.3 3.3
2 +1    2.5 3.9 3.7 2.3 3.3
1 -0.9  2.5 3.0 3.7 2.3 3.3
3 -0.3  2.5 3.0 3.7 2.0 3.3
2 +1.4  2.5 3.0 3.7 2.0 3.3  // not valid: difference between 5.1 and 2.0 is greater then 3
0 +1.3  2.5 3.0 3.7 2.0 3.3  // not valid: first speed exceeds 3
1 +1.6  2.5 4.6 3.7 2.0 3.3
0 -1    2.5 4.6 3.7 2.0 3.3  // not valid: difference between 1.5 and 4.6 is greater then 3
3 +1.7  2.5 4.6 3.7 3.7 3.3
1 -0.8  2.5 3.8 3.7 3.7 3.3
2 -1.3  2.5 3.8 2.4 3.7 3.3
2 +1.4  2.5 3.8 3.8 3.7 3.3
4 +0.3  2.5 3.8 3.8 3.7 3.6
1 -1.2  2.5 2.6 3.8 3.7 3.6
3 +1.8  2.5 2.6 3.8 5.5 3.6
2 -1.8  2.5 2.6 3.8 5.5 3.6  // not valid: difference between 2.0 and 5.5 is greater then 3
4 -0.9  2.5 2.6 3.8 5.5 2.7
0 +0.8  2.5 2.6 3.8 5.5 2.7  // not valid: first speed exceeds 3
1 +0.8  2.5 3.4 3.8 5.5 2.7
0 +1.5  2.5 3.4 3.8 5.5 2.7  // not valid: first speed exceeds 3
1 +0.5  2.5 3.9 3.8 5.5 2.7
1 +0.1  2.5 4.0 3.8 5.5 2.7
3 -0.1  2.5 4.0 3.8 5.4 2.7
4 +1.6  2.5 4.0 3.8 5.4 4.3
4 -0.2  2.5 4.0 3.8 5.4 4.1
3 -0.7  2.5 4.0 3.8 4.7 4.1
4 -1.6  2.5 4.0 3.8 4.7 2.5
0 -0.7  1.8 4.0 3.8 4.7 2.5
4 -1.5  1.8 4.0 3.8 4.7 2.5  // not valid: difference between 4.7 and 1.0 is greater then 3
1 +1.6  1.8 4.0 3.8 4.7 2.5  // not valid: difference between 1.8 and 5.6 is greater then 3
1 +1.2  1.8 4.0 3.8 4.7 2.5  // not valid: difference between 1.8 and 5.2 is greater then 3

Site checker: Hey qwerty, the best time is for the following speeds:

1.8 3.6 3.2 4.8 1.8

Qwerty: WTF? There is no row with such speeds above...

Hi, Rodion!

I check if moving time is improved, but only to update variable with best time and best speeds.

I didn't knew that an attempt of optimization should be discarded in this case too. Thanks for clarification!