/usr/bin/retesteth -t GeneralStateTests/stExample -- --clients pyt8n --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: 'pyt8n '
Filter: 'add11'
Running tests for config 'Python EVM StateTool' 2
Test Case "stExample": (1 of 1)
100%
Instantiated: "ethereum-spec-evm 0.1.0 (Git commit: 78fb726158c69d8fa164e28f195fabf6ab59b915)"
Tests finished: 1
stExample time: 3.83, cputime: 0.00 (0%), t8ntime: 0.00 (0%)
Error: 
Error when parsing file (/tests/GeneralStateTests/stExample/add11.json) Error parsing json: unexpected end of json! around: 
"------
0x0de0b6b3a76586a0",
                            "code" : "0x600160010160005500",
                            "nonce" : 
"------ (GeneralStateTests/stExample/, step: Read json structure: add11.json)

--------
TestOutputHelper detected 1 errors during test execution!
/retesteth/retesteth/helpers/TestOutputHelper.cpp(240): [1;31;49merror: in "GeneralStateTests/stExample": [0;39;49m

[1;31;49m*** 1 failure is detected in the test module "EthereumTests"
[0;39;49m*** Execution time stats
*** Total Tests Run: 0


--------
*** TOTAL ERRORS DETECTED: 1 errors during all test execution!Total Time:                               : 3.83            :    0.00 (0%)              :    0.00 (0%)
stExample                             time: 3.83     cputime:    0.00 (0%)       t8ntime:    0.00 (0%)


--------
info: (GeneralStateTests/stExample/, step: Read json structure: add11.json)