Ganache and BuilderEVM use different gas

[vporton]

Ganache CLI v6.10.2 (ganache-core: 2.11.3) and Buidler EVM (1.4.4) produce different gasUsed for a contract call running under a controlled test environment where not if...else branch should behave differently.

It uses vporton/ubi-russia@d303600 for testing.

npx ganache-cli -d

$ npx buidler run scripts/estimate-gas.js --network ganache
All contracts have already been compiled, skipping compilation.
144378
78703
max gas for single account: 144378
227988
111638
max gas for 2 accounts: 227988
ethereum,0$ npx buidler run scripts/estimate-gas.js 
All contracts have already been compiled, skipping compilation.
144378
78703
max gas for single account: 144378
227976
111626
max gas for 2 accounts: 227976

[vporton]

Rinkeby produced the same results as Ganache. So, it is apparently is a Buidler bug.