Overflow in fuzzing #588

[Markoutte]

Description

Overflow occurs in randomizer when fuzzing tries to shuffle values for further processing. The solution is to divide PseudoShuffledIntProgression into parts which can be processed within range 0..Int.MAX_VALUE. It decreases level of how random combinations are, but this is a little trade-off between memory consumption and this level.

Also, CombinationsKt is changed to process up to Long.MAX_VALUE combinations.

Fixes #588

Type of Change

Breaking change (fix or feature that would cause existing functionality to not work as expected)

How Has This Been Tested?

Automated Testing

org.utbot.framework.plugin.api.CombinationsTest
org.utbot.framework.plugin.api.FuzzerTest

Manual Scenario

Verify the origin problem from #588

Checklist:

• The change followed the style guidelines of the UTBot project
• Self-review of the code is passed
• The change contains enough commentaries, particularly in hard-to-understand areas
• New documentation is provided or existed one is altered
• No new warnings
• New tests have been added
• All tests pass locally with my changes

[SBOne-Kenobi]

LGTM