Version: 1.15 
 verifypn-linux64 data/zoo_json_cond_enf1/Columbus_4.json -T -R -O -V Low
DFA generation time: 0.025 seconds 
DFA states: 7 
DFA transitions: 485
Problem file: data/zoo_json_cond_enf1/Columbus_4.json
Switches to update: 160

Decomposed topology into 1 subproblems
Topological decomposition took 0.001 seconds
Subproblem 0 unsolvable!
Subproblem verification time: 35.137 seconds
Problem is unsolvable!
Total program runtime: 36.02 seconds

real 36.34
user 38.48
sys 0.91
