/usr/bin/retesteth -t GeneralStateTests/stExample -- --clients t8ntool --singletest add11 -j1 --nologcolor --exectimelog --testpath /tests 
Running tests using path: /tests
Running 1 test case...
Options path `/root/.retesteth` doesn't exist, attempt to create a new directory
Retesteth config path: /root/.retesteth
Active client configurations: 't8ntool '
Filter: 'add11'
Running tests for config 'Ethereum GO on StateTool' 2
Test Case "stExample": (1 of 1)
100%
Can't find geth's 'evm' executable alias in the system path!
WARNING: Reading empty result for /root/.retesteth/t8ntool/start.sh -v
Tests finished: 1
stExample time: 0.01, cputime: 0.00 (0%), t8ntime: 0.00 (0%)
/retesteth/retesteth/helpers/TestOutputHelper.cpp(240): error: in "GeneralStateTests/stExample": 
Error: The command '/root/.retesteth/t8ntool/start.sh -v' exited with 256 code. (GeneralStateTests/stExample/, step: TestSuite::executeTest)

--------
TestOutputHelper detected 1 errors during test execution!

*** 1 failure is detected in the test module "EthereumTests"
*** Total Tests Run: 0


--------
*** TOTAL ERRORS DETECTED: 1 errors during all test execution!
--------
*** Execution time stats
Total Time:                               : 0.01            :    0.00 (0%)              :    0.00 (0%)
stExample                             time: 0.01     cputime:    0.00 (0%)       t8ntime:    0.00 (0%)

info: (GeneralStateTests/stExample/, step: TestSuite::executeTest)