Continue benchmark in case of analysis failure.

Implement #119 (closed)

execution/strategies/subexperiment_evaluation/subexperiment_evaluator.py

+import lib.trend_slope_computer as trend_slope_computer
+import logging
 import os
 import sys
-import os
-import lib.trend_slope_computer as trend_slope_computer
 
 THRESHOLD = 2000
 WARMUP_SEC = 60
@@ -10,7 +10,15 @@ def execute(config):
     cwd = f'{os.getcwd()}/{config.result_path}'
     file = f"exp{config.exp_id}_uc{config.use_case}_{config.dim_value}_{config.replicas}_totallag.csv"
 
-    trend_slope = trend_slope_computer.compute(cwd, file, WARMUP_SEC, THRESHOLD)
+    try:
+        trend_slope = trend_slope_computer.compute(cwd, file, WARMUP_SEC, THRESHOLD)
+    except Exception as e:
+        err_msg = 'Computing trend slope failed'
+        print(err_msg)
+        logging.exception(err_msg)
+        print('Mark this subexperiment as not successful and continue benchmark')
+        return 0
+
 
     print(f"Trend Slope: {trend_slope}")
     success = 0 if trend_slope > THRESHOLD else 1