Running tests using path: /data/tests Running 8 test cases... Retesteth config path: /home/ubuntu/.retesteth Active client configurations: 't8ntooleip ' Running tests for config 'Ethereum GO on StateTool' 2 Test Case "dfArrowGlacier": (1 of 8) 20%... 40%... 60%... 80%... 100% Tests finished: 5 dfArrowGlacier time: 115.964525 Running tests for config 'Ethereum GO on StateTool' 2 Test Case "dfByzantium": (2 of 8) 100% Tests finished: 1 dfByzantium time: 75.803439 Running tests for config 'Ethereum GO on StateTool' 2 Test Case "dfConstantinople": (3 of 8) 100% Tests finished: 1 dfConstantinople time: 79.212105 Running tests for config 'Ethereum GO on StateTool' 2 Test Case "dfEIP2384": (4 of 8) 33%... 66%... 100% Tests finished: 3 dfEIP2384 time: 93.731500 WARNING: /data/tests/src/DifficultyTestsFiller/dfExample does not exist! WARNING: dfExample no tests detected in folder! Running tests for config 'Ethereum GO on StateTool' 2 Tests finished: 0 dfExample time: 0.000002 Running tests for config 'Ethereum GO on StateTool' 2 Test Case "dfFrontier": (6 of 8) 100% Tests finished: 1 dfFrontier time: 83.330921 Running tests for config 'Ethereum GO on StateTool' 2 Test Case "dfGrayGlacier": (7 of 8) 20%... 40%... 60%... 80%... 100% Tests finished: 5 dfGrayGlacier time: 142.945658 Running tests for config 'Ethereum GO on StateTool' 2 Test Case "dfHomestead": (8 of 8) 100% Tests finished: 1 dfHomestead time: 74.842377 *** No errors detected  *** Execution time stats Total Tests: : 27 Total Time: : 665.830527 dfGrayGlacier time: 142.945658 dfArrowGlacier time: 115.964525 dfEIP2384 time: 93.731500 dfFrontier time: 83.330921 dfConstantinople time: 79.212105 dfByzantium time: 75.803439 dfHomestead time: 74.842377 dfExample time: 0.000002