NO

Solver Timeout: 4
Global Timeout: 300
No parsing errors!
Init Location: 0
Transitions:
<l0, l7, true>
<l1, l2, true, par{len^0 -> (1 + len^0)}>
<l3, l1, (5 <= (0 + len^0))>
<l3, l1, ((1 + len^0) <= 4)>
<l3, l1, ((0 + len^0) <= 4) /\ (4 <= (0 + len^0)), par{len^0 -> 0}>
<l4, l5, ((0 + tmp^0) <= 0) /\ (0 <= (0 + tmp^0))>
<l4, l3, (1 <= (0 + tmp^0))>
<l4, l3, ((1 + tmp^0) <= 0)>
<l2, l4, (undef16 = undef16), par{tmp^0 -> undef16}>
<l6, l2, true, par{len^0 -> 0}>
<l7, l6, true>

Fresh variables:
undef16, 

Undef variables:
undef16, 

Abstraction variables:

Exit nodes:

Accepting locations:

Asserts:

Preprocessed LLVMGraph
Init Location: 0
Transitions:
<l0, l2, (len^0 = 0)>
<l2, l5, (undef16 = undef16) /\ ((0 + undef16) <= 0) /\ (0 <= (0 + undef16))>
<l2, l2, (undef16 = undef16) /\ (1 <= (0 + undef16)) /\ (5 <= (0 + len^0)), par{len^0 -> (1 + len^0)}>
<l2, l2, (undef16 = undef16) /\ (1 <= (0 + undef16)) /\ ((1 + len^0) <= 4), par{len^0 -> (1 + len^0)}>
<l2, l2, (undef16 = undef16) /\ (1 <= (0 + undef16)) /\ ((0 + len^0) <= 4) /\ (4 <= (0 + len^0)), par{len^0 -> (1 + 0)}>
<l2, l2, (undef16 = undef16) /\ ((1 + undef16) <= 0) /\ (5 <= (0 + len^0)), par{len^0 -> (1 + len^0)}>
<l2, l2, (undef16 = undef16) /\ ((1 + undef16) <= 0) /\ ((1 + len^0) <= 4), par{len^0 -> (1 + len^0)}>
<l2, l2, (undef16 = undef16) /\ ((1 + undef16) <= 0) /\ ((0 + len^0) <= 4) /\ (4 <= (0 + len^0)), par{len^0 -> (1 + 0)}>

Fresh variables:
undef16, 

Undef variables:
undef16, 

Abstraction variables:

Exit nodes:

Accepting locations:

Asserts:

*************************************************************
*******************************************************************************************
***********************       WORKING TRANSITION SYSTEM (DAG)       ***********************
*******************************************************************************************

Init Location: 0
Graph 0:
Transitions:
Variables:

Graph 1:
Transitions:
<l2, l2, 1 <= undef16 /\ 5 <= len^0, {len^0 -> 1 + len^0, rest remain the same}>
<l2, l2, 1 <= undef16 /\ len^0 <= 3, {len^0 -> 1 + len^0, rest remain the same}>
<l2, l2, 1 <= undef16 /\ len^0 = 4, {len^0 -> 1, rest remain the same}>
<l2, l2, 1 + undef16 <= 0 /\ 5 <= len^0, {len^0 -> 1 + len^0, rest remain the same}>
<l2, l2, 1 + undef16 <= 0 /\ len^0 <= 3, {len^0 -> 1 + len^0, rest remain the same}>
<l2, l2, 1 + undef16 <= 0 /\ len^0 = 4, {len^0 -> 1, rest remain the same}>
Variables:
len^0

Graph 2:
Transitions:
Variables:

Precedence: 
Graph 0

Graph 1
<l0, l2, len^0 = 0, {all remain the same}>

Graph 2
<l2, l5, undef16 = 0, {all remain the same}>

Map Locations to Subgraph:
( 0 , 0 )
( 2 , 1 )
( 5 , 2 )

*******************************************************************************************
********************************    CHECKING ASSERTIONS    ********************************
*******************************************************************************************

Proving termination of subgraph 0
Proving termination of subgraph 1
Checking unfeasibility...
Time used: 0.014777
Some transition disabled by a set of invariant(s):
Invariant at l2: len^0 <= 4

Strengthening and disabling transitions...
> It's unfeasible. Removing transition: 
<l2, l2, 1 + undef16 <= 0 /\ 5 <= len^0, {len^0 -> 1 + len^0, rest remain the same}>

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
It's unfeasible. Removing transition: 
<l2, l2, 1 <= undef16 /\ 5 <= len^0, {len^0 -> 1 + len^0, rest remain the same}>

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, 1 <= undef16 /\ len^0 <= 3, {len^0 -> 1 + len^0, rest remain the same}>

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, 1 <= undef16 /\ len^0 = 4, {len^0 -> 1, rest remain the same}>

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, 1 + undef16 <= 0 /\ len^0 <= 3, {len^0 -> 1 + len^0, rest remain the same}>

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, 1 + undef16 <= 0 /\ len^0 = 4, {len^0 -> 1, rest remain the same}>
Checking unfeasibility...
Time used: 0.006203

Checking conditional termination of SCC {l2}...

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000725s

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.009681s
Trying to remove transition: <l2, l2, 1 + undef16 <= 0 /\ len^0 = 4, {len^0 -> 1, rest remain the same}>
Solving with 1 template(s).

LOG: CALL solveNonLinearGetFirstSolution

LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.028590s
Time used: 0.028394
Trying to remove transition: <l2, l2, 1 + undef16 <= 0 /\ len^0 <= 3, {len^0 -> 1 + len^0, rest remain the same}>
Solving with 1 template(s).

LOG: CALL solveNonLinearGetFirstSolution

LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.012633s
Time used: 0.012117
Trying to remove transition: <l2, l2, 1 <= undef16 /\ len^0 = 4, {len^0 -> 1, rest remain the same}>
Solving with 1 template(s).

LOG: CALL solveNonLinearGetFirstSolution

LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.030089s
Time used: 0.029655
Trying to remove transition: <l2, l2, 1 <= undef16 /\ len^0 <= 3, {len^0 -> 1 + len^0, rest remain the same}>
Solving with 1 template(s).

LOG: CALL solveNonLinearGetFirstSolution

LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.013127s
Time used: 0.01253
Solving with 1 template(s).

LOG: CALL solveNonLinearGetFirstSolution

LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.025736s
Time used: 0.025275
Solving with 2 template(s).

LOG: CALL solveNonLinearGetFirstSolution

LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.132192s
Time used: 0.131086
Solving with 3 template(s).

LOG: CALL solveNonLinearGetFirstSolution

LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.525929s
Time used: 0.522969
Solving with 1 template(s).

LOG: CALL solveNonLinearGetFirstSolution

LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.034554s
Time used: 0.025625
Termination failed. Trying to show unreachability...
Proving unreachability of entry: <l0, l2, len^0 = 0, {all remain the same}>

LOG: CALL check - Post:1 <= 0 - Process 1
* Exit transition: <l0, l2, len^0 = 0, {all remain the same}>
* Postcondition  : 1 <= 0

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.001315s
> Postcondition is not implied!

LOG: RETURN check - Elapsed time: 0.001350s
Cannot prove unreachability

Proving non-termination of subgraph 1
Transitions:
<l2, l2, 1 <= undef16 /\ len^0 <= 3, {len^0 -> 1 + len^0, rest remain the same}>
<l2, l2, 1 <= undef16 /\ len^0 = 4, {len^0 -> 1, rest remain the same}>
<l2, l2, 1 + undef16 <= 0 /\ len^0 <= 3, {len^0 -> 1 + len^0, rest remain the same}>
<l2, l2, 1 + undef16 <= 0 /\ len^0 = 4, {len^0 -> 1, rest remain the same}>
Variables:
len^0

Checking conditional non-termination of SCC {l2}...
> No exit transition to close.
Calling reachability with...
Transition: <l2, end, true, {all remain the same}>
Conditions: 
OPEN EXITS: 
<l2, end, true, {all remain the same}>

--- Reachability graph ---
> Graph without transitions.

Calling reachability with...
Transition: <l0, l2, len^0 = 0, {all remain the same}>
Conditions: 
OPEN EXITS: 
<l0, l2, len^0 = 0, {all remain the same}>

> Conditions are reachable!

Program does NOT terminate