Version: 1.15 
 verifypn-linux64 data/zoo_json_cond_enf2/Columbus_4.json -T -R -O -V Low
DFA generation time: 0.043 seconds 
DFA states: 19 
DFA transitions: 981
Problem file: data/zoo_json_cond_enf2/Columbus_4.json
Switches to update: 160

Decomposed topology into 1 subproblems
Topological decomposition took 0.0 seconds
Subproblem 0 unsolvable!
Subproblem verification time: 30.768 seconds
Problem is unsolvable!
Total program runtime: 31.774 seconds

real 32.12
user 33.78
sys 1.00
