Trying to load file: main.koat

Initial Control flow graph problem:
  Start location: evalfstart
      0: evalfstart -> evalfentryin : [], cost: 1
      1: evalfentryin -> evalfbb4in : A'=1, [], cost: 1
      2: evalfbb4in -> evalfbb2in : C'=1, [ B>=A ], cost: 1
      3: evalfbb4in -> evalfreturnin : [ A>=1+B ], cost: 1
      4: evalfbb2in -> evalfbb1in : [ D>=C ], cost: 1
      5: evalfbb2in -> evalfbb3in : [ C>=1+D ], cost: 1
      8: evalfreturnin -> evalfstop : [], cost: 1
      6: evalfbb1in -> evalfbb2in : C'=1+C, [], cost: 1
      7: evalfbb3in -> evalfbb4in : A'=1+A, [], cost: 1


Simplified the transitions:
  Start location: evalfstart
      0: evalfstart -> evalfentryin : [], cost: 1
      1: evalfentryin -> evalfbb4in : A'=1, [], cost: 1
      2: evalfbb4in -> evalfbb2in : C'=1, [ B>=A ], cost: 1
      4: evalfbb2in -> evalfbb1in : [ D>=C ], cost: 1
      5: evalfbb2in -> evalfbb3in : [ C>=1+D ], cost: 1
      6: evalfbb1in -> evalfbb2in : C'=1+C, [], cost: 1
      7: evalfbb3in -> evalfbb4in : A'=1+A, [], cost: 1


Applied simple chaining:
  Start location: evalfstart
      0: evalfstart -> evalfbb4in : A'=1, [], cost: 2
      2: evalfbb4in -> evalfbb2in : C'=1, [ B>=A ], cost: 1
      5: evalfbb2in -> evalfbb4in : A'=1+A, [ C>=1+D ], cost: 2
      4: evalfbb2in -> evalfbb2in : C'=1+C, [ D>=C ], cost: 2

Eliminating 1 self-loops for location evalfbb2in
  Self-Loop 4 has the metering function: 1-C+D, resulting in the new transition 9.
  Removing the self-loops: 4.

Removed all Self-loops using metering functions (where possible):
  Start location: evalfstart
      0: evalfstart -> evalfbb4in : A'=1, [], cost: 2
      2: evalfbb4in -> evalfbb2in : C'=1, [ B>=A ], cost: 1
      9: evalfbb2in -> [8] : C'=1+D, [ D>=C ], cost: 2-2*C+2*D
      5: [8] -> evalfbb4in : A'=1+A, [ C>=1+D ], cost: 2


Applied simple chaining:
  Start location: evalfstart
      0: evalfstart -> evalfbb4in : A'=1, [], cost: 2
      2: evalfbb4in -> evalfbb4in : A'=1+A, C'=1+D, [ B>=A && D>=1 && 1+D>=1+D ], cost: 3+2*D

Eliminating 1 self-loops for location evalfbb4in
  Self-Loop 2 has the metering function: 1+B-A, resulting in the new transition 10.
  Removing the self-loops: 2.

Removed all Self-loops using metering functions (where possible):
  Start location: evalfstart
      0: evalfstart -> evalfbb4in : A'=1, [], cost: 2
     10: evalfbb4in -> [9] : A'=1+B, C'=1+D, [ B>=A && D>=1 ], cost: 3+3*B+2*(1+B-A)*D-3*A


Applied simple chaining:
  Start location: evalfstart
      0: evalfstart -> [9] : A'=1+B, C'=1+D, [ B>=1 && D>=1 ], cost: 2+3*B+2*B*D


Final control flow graph problem, now checking costs for infinitely many models:
  Start location: evalfstart
      0: evalfstart -> [9] : A'=1+B, C'=1+D, [ B>=1 && D>=1 ], cost: 2+3*B+2*B*D


Computing complexity for remaining 1 transitions.

  Found configuration with infinitely models for cost: 2+3*B+2*B*D
  and guard: B>=1 && D>=1:
  B: Pos, D: Pos

Found new complexity n^2, because: Found infinity configuration.


The final runtime is determined by this resulting transition:
  Final Guard: B>=1 && D>=1
  Final Cost:  2+3*B+2*B*D

Obtained the following complexity w.r.t. the length of the input n:
  Complexity class: n^2
  Complexity value: 2

WORST_CASE(Omega(n^2),?)