NO

Solver Timeout: 4
Global Timeout: 60
No parsing errors!
Init Location: 0
Transitions:
<l0, l4, true>
<l1, l2, (arg1 > 0) /\ (arg2 > ~(1)), par{arg1 -> arg2, arg3 -> arg2, arg4 -> undef4}>
<l2, l2, (arg1 >= arg2) /\ (arg1 > 1) /\ (arg2 > 4) /\ (arg1 = arg3), par{arg1 -> (arg1 - 1), arg2 -> (arg2 - 1), arg3 -> (arg1 - 1), arg4 -> undef8}>
<l2, l3, (arg1 < arg2) /\ (arg2 > 1) /\ ((arg1 + 1) >= (2 * arg2)) /\ (arg1 > 0) /\ (arg1 = arg3), par{arg3 -> (arg1 + 1), arg4 -> (arg2 + 1)}>
<l2, l3, (arg1 < arg2) /\ (arg2 > 1) /\ ((arg1 + 1) < (2 * arg2)) /\ (arg1 > 0) /\ (arg1 = arg3), par{arg3 -> (arg1 + 1), arg4 -> (arg2 - 1)}>
<l3, l2, (arg1 > 0) /\ (arg2 > 1) /\ (arg3 > 1) /\ (arg4 > 0) /\ (arg2 > arg1) /\ (arg2 >= arg3) /\ (arg1 <= arg4), par{arg1 -> arg3, arg2 -> arg4, arg4 -> undef20}>
<l2, l2, (arg1 > 0) /\ (arg1 >= arg2) /\ (arg2 < 5) /\ (((arg1 - 1) - (arg2 + 1)) <= 2) /\ (arg2 > ~(1)) /\ (arg1 = arg3), par{arg1 -> (arg1 - 1), arg2 -> (arg2 + 2), arg3 -> (arg1 - 1), arg4 -> undef24}>
<l2, l2, (arg1 > 0) /\ (arg1 >= arg2) /\ (arg2 < 5) /\ (((arg1 - 1) - (arg2 + 1)) > 2) /\ (arg2 > ~(1)) /\ (arg1 = arg3), par{arg2 -> (arg2 + 1), arg3 -> arg1, arg4 -> undef28}>
<l4, l1, true, par{arg1 -> undef29, arg2 -> undef30, arg3 -> undef31, arg4 -> undef32}>

Fresh variables:
undef4, undef8, undef20, undef24, undef28, undef29, undef30, undef31, undef32, 

Undef variables:
undef4, undef8, undef20, undef24, undef28, undef29, undef30, undef31, undef32, 

Abstraction variables:

Exit nodes:

Accepting locations:

Asserts:

Preprocessed LLVMGraph
Init Location: 0
Transitions:
<l0, l2, (arg1 = undef30) /\ (arg2 = undef30) /\ (arg3 = undef30) /\ (undef29 > 0) /\ (undef30 > ~(1))>
<l2, l2, (arg1 >= arg2) /\ (arg1 > 1) /\ (arg2 > 4) /\ (arg1 = arg3), par{arg1 -> (arg1 - 1), arg2 -> (arg2 - 1), arg3 -> (arg1 - 1)}>
<l2, l2, (arg1 < arg2) /\ (arg2 > 1) /\ ((arg1 + 1) < (2 * arg2)) /\ (arg1 > 0) /\ (arg1 = arg3) /\ (arg1 > 0) /\ (arg2 > 1) /\ ((arg1 + 1) > 1) /\ ((arg2 - 1) > 0) /\ (arg2 > arg1) /\ (arg2 >= (arg1 + 1)) /\ (arg1 <= (arg2 - 1)), par{arg1 -> (arg1 + 1), arg2 -> (arg2 - 1), arg3 -> (arg1 + 1)}>
<l2, l2, (arg1 > 0) /\ (arg1 >= arg2) /\ (arg2 < 5) /\ (((arg1 - 1) - (arg2 + 1)) <= 2) /\ (arg2 > ~(1)) /\ (arg1 = arg3), par{arg1 -> (arg1 - 1), arg2 -> (arg2 + 2), arg3 -> (arg1 - 1)}>
<l2, l2, (arg1 > 0) /\ (arg1 >= arg2) /\ (arg2 < 5) /\ (((arg1 - 1) - (arg2 + 1)) > 2) /\ (arg2 > ~(1)) /\ (arg1 = arg3), par{arg2 -> (arg2 + 1), arg3 -> arg1}>

Fresh variables:
undef4, undef8, undef20, undef24, undef28, undef29, undef30, undef31, undef32, 

Undef variables:
undef4, undef8, undef20, undef24, undef28, undef29, undef30, undef31, undef32, 

Abstraction variables:

Exit nodes:

Accepting locations:

Asserts:

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

Init Location: 0
Graph 0:
Transitions:
Variables:

Graph 1:
Transitions:
<l2, l2, arg2 <= arg1 /\ 2 <= arg1 /\ 5 <= arg2 /\ arg1 = arg3, {arg1 -> -1 + arg1, arg2 -> -1 + arg2, arg3 -> -1 + arg1, rest remain the same}>
<l2, l2, 1 + arg1 <= arg2 /\ 1 <= arg1 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg2 /\ arg1 = arg3, {arg1 -> 1 + arg1, arg2 -> -1 + arg2, arg3 -> 1 + arg1, rest remain the same}>
<l2, l2, arg2 <= arg1 /\ 0 <= arg2 /\ 1 <= arg1 /\ arg1 <= 4 + arg2 /\ arg2 <= 4 /\ arg1 = arg3, {arg1 -> -1 + arg1, arg2 -> 2 + arg2, arg3 -> -1 + arg1, rest remain the same}>
<l2, l2, 0 <= arg2 /\ 1 <= arg1 /\ 5 + arg2 <= arg1 /\ arg2 <= 4 /\ arg1 = arg3, {arg2 -> 1 + arg2, arg3 -> arg1, rest remain the same}>
Variables:
arg1, arg2, arg3

Precedence: 
Graph 0

Graph 1
<l0, l2, 0 <= undef30 /\ 1 <= undef29 /\ arg1 = undef30 /\ arg2 = undef30 /\ arg3 = undef30, {all remain the same}>

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

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

Proving termination of subgraph 0
Proving termination of subgraph 1
Checking unfeasibility...
Time used: 0.023831
Some transition disabled by a set of invariant(s):
Invariant at l2: arg3 <= 1 + arg2

Strengthening and disabling transitions...
> It's unfeasible. Removing transition: 
<l2, l2, 0 <= arg2 /\ 1 <= arg1 /\ 5 + arg2 <= arg1 /\ arg2 <= 4 /\ arg1 = arg3, {arg2 -> 1 + arg2, arg3 -> arg1, rest remain the same}>

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, arg2 <= arg1 /\ arg3 <= 1 + arg2 /\ 2 <= arg1 /\ 5 <= arg2 /\ arg1 = arg3, {arg1 -> -1 + arg1, arg2 -> -1 + arg2, arg3 -> -1 + arg1, rest remain the same}>

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, 1 + arg1 <= arg2 /\ 1 <= arg1 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg2 /\ arg1 = arg3, {arg1 -> 1 + arg1, arg2 -> -1 + arg2, arg3 -> 1 + arg1, rest remain the same}>

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, arg2 <= arg1 /\ 0 <= arg2 /\ 1 <= arg1 /\ arg3 <= 1 + arg2 /\ arg1 <= 4 + arg2 /\ arg2 <= 4 /\ arg1 = arg3, {arg1 -> -1 + arg1, arg2 -> 2 + arg2, arg3 -> -1 + arg1, rest remain the same}>
Checking unfeasibility...
Time used: 0.1089

Checking conditional termination of SCC {l2}...

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.002779s

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.397263s
Trying to remove transition: <l2, l2, arg2 <= arg1 /\ 0 <= arg2 /\ 1 <= arg1 /\ arg3 <= 1 + arg2 /\ arg1 <= 4 + arg2 /\ arg2 <= 4 /\ arg1 = arg3, {arg1 -> -1 + arg1, arg2 -> 2 + arg2, arg3 -> -1 + arg1, rest remain the same}>
Solving with 1 template(s).

LOG: CALL solveNonLinearGetFirstSolution

LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.000760s
Time used: 4.0001
Trying to remove transition: <l2, l2, 1 + arg1 <= arg2 /\ 1 <= arg1 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg2 /\ arg1 = arg3, {arg1 -> 1 + arg1, arg2 -> -1 + arg2, arg3 -> 1 + arg1, rest remain the same}>
Solving with 1 template(s).

LOG: CALL solveNonLinearGetFirstSolution

LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 1.143608s
Time used: 1.12948
Trying to remove transition: <l2, l2, arg2 <= arg1 /\ arg3 <= 1 + arg2 /\ 2 <= arg1 /\ 5 <= arg2 /\ arg1 = arg3, {arg1 -> -1 + arg1, arg2 -> -1 + arg2, arg3 -> -1 + arg1, rest remain the same}>
Solving with 1 template(s).

LOG: CALL solveNonLinearGetFirstSolution

LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.003032s
Time used: 4.00007
Solving with 1 template(s).

LOG: CALL solveNonLinearGetFirstSolution

LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.019953s
Time used: 4.00027
Solving with 2 template(s).

LOG: CALL solveNonLinearGetFirstSolution

LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.008475s
Time used: 4.00048
Solving with 3 template(s).

LOG: CALL solveNonLinearGetFirstSolution

LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 1.034481s
Time used: 1.00015
Solving with 1 template(s).

LOG: CALL solveNonLinearGetFirstSolution

LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.041482s
Time used: 4.001
Termination failed. Trying to show unreachability...
Proving unreachability of entry: <l0, l2, 0 <= undef30 /\ 1 <= undef29 /\ arg1 = undef30 /\ arg2 = undef30 /\ arg3 = undef30, {all remain the same}>

LOG: CALL check - Post:1 <= 0 - Process 1
* Exit transition: <l0, l2, 0 <= undef30 /\ 1 <= undef29 /\ arg1 = undef30 /\ arg2 = undef30 /\ arg3 = undef30, {all remain the same}>
* Postcondition  : 1 <= 0

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.017592s
> Postcondition is not implied!

LOG: RETURN check - Elapsed time: 0.017749s
Cannot prove unreachability

Proving non-termination of subgraph 1
Transitions:
<l2, l2, arg2 <= arg1 /\ arg3 <= 1 + arg2 /\ 2 <= arg1 /\ 5 <= arg2 /\ arg1 = arg3, {arg1 -> -1 + arg1, arg2 -> -1 + arg2, arg3 -> -1 + arg1, rest remain the same}>
<l2, l2, 1 + arg1 <= arg2 /\ 1 <= arg1 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg2 /\ arg1 = arg3, {arg1 -> 1 + arg1, arg2 -> -1 + arg2, arg3 -> 1 + arg1, rest remain the same}>
<l2, l2, arg2 <= arg1 /\ 0 <= arg2 /\ 1 <= arg1 /\ arg3 <= 1 + arg2 /\ arg1 <= 4 + arg2 /\ arg2 <= 4 /\ arg1 = arg3, {arg1 -> -1 + arg1, arg2 -> 2 + arg2, arg3 -> -1 + arg1, rest remain the same}>
Variables:
arg1, arg2, arg3

Checking conditional non-termination of SCC {l2}...
EXIT TRANSITIONS:
<l2, end, arg2 <= arg1 /\ 1 + arg3 <= arg1 /\ arg3 <= 1 + arg2 /\ 2 <= arg1 /\ 5 <= arg2, {all remain the same}>
<l2, end, arg2 <= arg1 /\ 1 + arg1 <= arg3 /\ arg3 <= 1 + arg2 /\ 2 <= arg1 /\ 5 <= arg2, {all remain the same}>
<l2, end, arg2 <= arg1 /\ 1 + arg3 <= arg1 /\ 2*arg2 <= 1 + arg1 /\ arg3 <= 1 + arg2 /\ 2 <= arg1 /\ 2 <= arg2 /\ arg2 <= 4, {all remain the same}>
<l2, end, arg2 <= arg1 /\ 1 + arg3 <= arg1 /\ 2*arg2 <= 1 + arg1 /\ arg2 <= 1 /\ arg3 <= 1 + arg2 /\ 2 <= arg1, {all remain the same}>
<l2, end, arg2 <= arg1 /\ 1 + arg3 <= arg1 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg1 /\ 2 <= arg2 /\ arg1 <= 4 + arg2 /\ arg2 <= 4, {all remain the same}>
<l2, end, arg2 <= arg1 /\ 1 + arg1 <= arg3 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg1 /\ 2 <= arg2 /\ arg1 <= 4 + arg2 /\ arg2 <= 4, {all remain the same}>
<l2, end, arg2 <= arg1 /\ 0 <= arg2 /\ 1 + arg3 <= arg1 /\ arg1 <= 1 /\ 2*arg2 <= 1 + arg1 /\ arg2 <= 1 /\ arg3 <= 1 + arg2 /\ arg1 <= 4 + arg2, {all remain the same}>
<l2, end, arg2 <= arg1 /\ 1 + arg3 <= arg1 /\ 1 + arg2 <= 0 /\ arg1 <= 1 /\ 2*arg2 <= 1 + arg1 /\ arg3 <= 1 + arg2, {all remain the same}>
<l2, end, arg1 <= 0 /\ arg2 <= arg1 /\ 0 <= arg2 /\ 2*arg2 <= 1 + arg1 /\ arg2 <= 1 /\ arg3 <= 1 + arg2 /\ arg1 <= 4 + arg2 /\ arg1 = arg3, {all remain the same}>
<l2, end, arg1 <= 0 /\ arg2 <= arg1 /\ 1 + arg2 <= 0 /\ 2*arg2 <= 1 + arg1 /\ arg3 <= 1 + arg2 /\ arg1 = arg3, {all remain the same}>
<l2, end, arg2 <= arg1 /\ 0 <= arg2 /\ 1 + arg1 <= arg3 /\ arg1 <= 1 /\ 2*arg2 <= 1 + arg1 /\ arg2 <= 1 /\ arg3 <= 1 + arg2 /\ arg1 <= 4 + arg2, {all remain the same}>
<l2, end, arg2 <= arg1 /\ 1 + arg1 <= arg3 /\ 1 + arg2 <= 0 /\ arg1 <= 1 /\ 2*arg2 <= 1 + arg1 /\ arg3 <= 1 + arg2, {all remain the same}>
<l2, end, 1 + arg1 <= arg2 /\ 1 + arg3 <= arg1 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg1 /\ 2 <= arg2, {all remain the same}>
<l2, end, 1 + arg1 <= arg2 /\ 1 + arg1 <= arg3 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg1 /\ 2 <= arg2, {all remain the same}>
<l2, end, 1 + arg1 <= arg2 /\ 1 + arg3 <= arg1 /\ arg1 <= 1 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 5 <= arg2, {all remain the same}>
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 5 <= arg2 /\ arg1 = arg3, {all remain the same}>
<l2, end, 1 + arg1 <= arg2 /\ 1 + arg1 <= arg3 /\ arg1 <= 1 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 5 <= arg2, {all remain the same}>
<l2, end, 1 + arg1 <= arg2 /\ 1 + arg3 <= arg1 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg2 /\ arg2 <= 4 /\ arg1 = 1, {all remain the same}>
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ 1 + arg3 <= arg1 /\ 2*arg2 <= 1 + arg1 /\ arg2 <= 1 /\ arg3 <= 1 + arg2, {all remain the same}>
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ 1 + arg3 <= arg1 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg2 /\ arg2 <= 4, {all remain the same}>
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ 1 + arg3 <= arg1 /\ arg2 <= 1 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2, {all remain the same}>
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ 2*arg2 <= 1 + arg1 /\ arg2 <= 1 /\ arg3 <= 1 + arg2 /\ arg1 = arg3, {all remain the same}>
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg2 /\ arg2 <= 4 /\ arg1 = arg3, {all remain the same}>
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ arg2 <= 1 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ arg1 = arg3, {all remain the same}>
<l2, end, 1 + arg1 <= arg2 /\ 1 + arg1 <= arg3 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg2 /\ arg2 <= 4 /\ arg1 = 1, {all remain the same}>
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ 1 + arg1 <= arg3 /\ 2*arg2 <= 1 + arg1 /\ arg2 <= 1 /\ arg3 <= 1 + arg2, {all remain the same}>
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ 1 + arg1 <= arg3 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg2 /\ arg2 <= 4, {all remain the same}>
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ 1 + arg1 <= arg3 /\ arg2 <= 1 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2, {all remain the same}>

Solving with 1 template(s).

LOG: CALL solveNonLinearGetFirstSolution

LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.661555s
Time used: 0.660824
Improving Solution with cost 40 ...

LOG: CALL solveNonLinearGetNextSolution

LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 1.000974s
Time used: 1.00097

LOG: SAT solveNonLinear - Elapsed time: 1.662530s
Cost: 40; Total time: 1.6618
Non-termination implied by a set of quasi-invariant(s):
Quasi-invariant at l2: arg1 <= arg3

Strengthening and disabling EXIT transitions...
Closed exits from l2: 12
Strengthening exit transition (result): 
<l2, end, arg2 <= arg1 /\ 1 + arg1 <= arg3 /\ arg3 <= 1 + arg2 /\ 2 <= arg1 /\ 5 <= arg2, {all remain the same}>
Strengthening exit transition (result): 
<l2, end, arg2 <= arg1 /\ 1 + arg1 <= arg3 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg1 /\ 2 <= arg2 /\ arg1 <= 4 + arg2 /\ arg2 <= 4, {all remain the same}>
Strengthening exit transition (result): 
<l2, end, arg1 <= 0 /\ arg2 <= arg1 /\ 0 <= arg2 /\ 2*arg2 <= 1 + arg1 /\ arg2 <= 1 /\ arg3 <= 1 + arg2 /\ arg1 <= 4 + arg2 /\ arg1 = arg3, {all remain the same}>
Strengthening exit transition (result): 
<l2, end, arg1 <= 0 /\ arg2 <= arg1 /\ 1 + arg2 <= 0 /\ 2*arg2 <= 1 + arg1 /\ arg3 <= 1 + arg2 /\ arg1 = arg3, {all remain the same}>
Strengthening exit transition (result): 
<l2, end, arg2 <= arg1 /\ 0 <= arg2 /\ 1 + arg1 <= arg3 /\ arg1 <= 1 /\ 2*arg2 <= 1 + arg1 /\ arg2 <= 1 /\ arg3 <= 1 + arg2 /\ arg1 <= 4 + arg2, {all remain the same}>
Strengthening exit transition (result): 
<l2, end, arg2 <= arg1 /\ 1 + arg1 <= arg3 /\ 1 + arg2 <= 0 /\ arg1 <= 1 /\ 2*arg2 <= 1 + arg1 /\ arg3 <= 1 + arg2, {all remain the same}>
Strengthening exit transition (result): 
<l2, end, 1 + arg1 <= arg2 /\ 1 + arg1 <= arg3 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg1 /\ 2 <= arg2, {all remain the same}>
Strengthening exit transition (result): 
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 5 <= arg2 /\ arg1 = arg3, {all remain the same}>
Strengthening exit transition (result): 
<l2, end, 1 + arg1 <= arg2 /\ 1 + arg1 <= arg3 /\ arg1 <= 1 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 5 <= arg2, {all remain the same}>
Strengthening exit transition (result): 
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ 2*arg2 <= 1 + arg1 /\ arg2 <= 1 /\ arg3 <= 1 + arg2 /\ arg1 = arg3, {all remain the same}>
Strengthening exit transition (result): 
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg2 /\ arg2 <= 4 /\ arg1 = arg3, {all remain the same}>
Strengthening exit transition (result): 
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ arg2 <= 1 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ arg1 = arg3, {all remain the same}>
Strengthening exit transition (result): 
<l2, end, 1 + arg1 <= arg2 /\ 1 + arg1 <= arg3 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg2 /\ arg2 <= 4 /\ arg1 = 1, {all remain the same}>
Strengthening exit transition (result): 
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ 1 + arg1 <= arg3 /\ 2*arg2 <= 1 + arg1 /\ arg2 <= 1 /\ arg3 <= 1 + arg2, {all remain the same}>
Strengthening exit transition (result): 
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ 1 + arg1 <= arg3 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg2 /\ arg2 <= 4, {all remain the same}>
Strengthening exit transition (result): 
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ 1 + arg1 <= arg3 /\ arg2 <= 1 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2, {all remain the same}>

Strengthening and disabling transitions...

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, arg2 <= arg1 /\ arg3 <= 1 + arg2 /\ 2 <= arg1 /\ 5 <= arg2 /\ arg1 = arg3, {arg1 -> -1 + arg1, arg2 -> -1 + arg2, arg3 -> -1 + arg1, rest remain the same}>

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, 1 + arg1 <= arg2 /\ 1 <= arg1 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg2 /\ arg1 = arg3, {arg1 -> 1 + arg1, arg2 -> -1 + arg2, arg3 -> 1 + arg1, rest remain the same}>

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, arg2 <= arg1 /\ 0 <= arg2 /\ 1 <= arg1 /\ arg3 <= 1 + arg2 /\ arg1 <= 4 + arg2 /\ arg2 <= 4 /\ arg1 = arg3, {arg1 -> -1 + arg1, arg2 -> 2 + arg2, arg3 -> -1 + arg1, rest remain the same}>

Checking conditional non-termination of SCC {l2}...
EXIT TRANSITIONS:
<l2, end, arg2 <= arg1 /\ 1 + arg1 <= arg3 /\ arg3 <= 1 + arg2 /\ 2 <= arg1 /\ 5 <= arg2, {all remain the same}>
<l2, end, arg2 <= arg1 /\ 1 + arg1 <= arg3 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg1 /\ 2 <= arg2 /\ arg1 <= 4 + arg2 /\ arg2 <= 4, {all remain the same}>
<l2, end, arg1 <= 0 /\ arg2 <= arg1 /\ 0 <= arg2 /\ 2*arg2 <= 1 + arg1 /\ arg2 <= 1 /\ arg3 <= 1 + arg2 /\ arg1 <= 4 + arg2 /\ arg1 = arg3, {all remain the same}>
<l2, end, arg1 <= 0 /\ arg2 <= arg1 /\ 1 + arg2 <= 0 /\ 2*arg2 <= 1 + arg1 /\ arg3 <= 1 + arg2 /\ arg1 = arg3, {all remain the same}>
<l2, end, arg2 <= arg1 /\ 0 <= arg2 /\ 1 + arg1 <= arg3 /\ arg1 <= 1 /\ 2*arg2 <= 1 + arg1 /\ arg2 <= 1 /\ arg3 <= 1 + arg2 /\ arg1 <= 4 + arg2, {all remain the same}>
<l2, end, arg2 <= arg1 /\ 1 + arg1 <= arg3 /\ 1 + arg2 <= 0 /\ arg1 <= 1 /\ 2*arg2 <= 1 + arg1 /\ arg3 <= 1 + arg2, {all remain the same}>
<l2, end, 1 + arg1 <= arg2 /\ 1 + arg1 <= arg3 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg1 /\ 2 <= arg2, {all remain the same}>
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 5 <= arg2 /\ arg1 = arg3, {all remain the same}>
<l2, end, 1 + arg1 <= arg2 /\ 1 + arg1 <= arg3 /\ arg1 <= 1 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 5 <= arg2, {all remain the same}>
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ 2*arg2 <= 1 + arg1 /\ arg2 <= 1 /\ arg3 <= 1 + arg2 /\ arg1 = arg3, {all remain the same}>
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg2 /\ arg2 <= 4 /\ arg1 = arg3, {all remain the same}>
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ arg2 <= 1 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ arg1 = arg3, {all remain the same}>
<l2, end, 1 + arg1 <= arg2 /\ 1 + arg1 <= arg3 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg2 /\ arg2 <= 4 /\ arg1 = 1, {all remain the same}>
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ 1 + arg1 <= arg3 /\ 2*arg2 <= 1 + arg1 /\ arg2 <= 1 /\ arg3 <= 1 + arg2, {all remain the same}>
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ 1 + arg1 <= arg3 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg2 /\ arg2 <= 4, {all remain the same}>
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ 1 + arg1 <= arg3 /\ arg2 <= 1 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2, {all remain the same}>

Solving with 1 template(s).

LOG: CALL solveNonLinearGetFirstSolution

LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.185387s
Time used: 0.184763
Improving Solution with cost 15 ...

LOG: CALL solveNonLinearGetNextSolution

LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 1.002041s
Time used: 1.00206

LOG: SAT solveNonLinear - Elapsed time: 1.187428s
Cost: 15; Total time: 1.18682
Non-termination implied by a set of quasi-invariant(s):
Quasi-invariant at l2: arg3 <= arg1

Strengthening and disabling EXIT transitions...
Closed exits from l2: 10
Strengthening exit transition (result): 
<l2, end, arg1 <= 0 /\ arg2 <= arg1 /\ 0 <= arg2 /\ 2*arg2 <= 1 + arg1 /\ arg2 <= 1 /\ arg3 <= 1 + arg2 /\ arg1 <= 4 + arg2 /\ arg1 = arg3, {all remain the same}>
Strengthening exit transition (result): 
<l2, end, arg1 <= 0 /\ arg2 <= arg1 /\ 1 + arg2 <= 0 /\ 2*arg2 <= 1 + arg1 /\ arg3 <= 1 + arg2 /\ arg1 = arg3, {all remain the same}>
Strengthening exit transition (result): 
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 5 <= arg2 /\ arg1 = arg3, {all remain the same}>
Strengthening exit transition (result): 
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ 2*arg2 <= 1 + arg1 /\ arg2 <= 1 /\ arg3 <= 1 + arg2 /\ arg1 = arg3, {all remain the same}>
Strengthening exit transition (result): 
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg2 /\ arg2 <= 4 /\ arg1 = arg3, {all remain the same}>
Strengthening exit transition (result): 
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ arg2 <= 1 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ arg1 = arg3, {all remain the same}>

Strengthening and disabling transitions...

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, arg2 <= arg1 /\ arg3 <= 1 + arg2 /\ 2 <= arg1 /\ 5 <= arg2 /\ arg1 = arg3, {arg1 -> -1 + arg1, arg2 -> -1 + arg2, arg3 -> -1 + arg1, rest remain the same}>

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, 1 + arg1 <= arg2 /\ 1 <= arg1 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg2 /\ arg1 = arg3, {arg1 -> 1 + arg1, arg2 -> -1 + arg2, arg3 -> 1 + arg1, rest remain the same}>

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, arg2 <= arg1 /\ 0 <= arg2 /\ 1 <= arg1 /\ arg3 <= 1 + arg2 /\ arg1 <= 4 + arg2 /\ arg2 <= 4 /\ arg1 = arg3, {arg1 -> -1 + arg1, arg2 -> 2 + arg2, arg3 -> -1 + arg1, rest remain the same}>

Checking conditional non-termination of SCC {l2}...
EXIT TRANSITIONS:
<l2, end, arg1 <= 0 /\ arg2 <= arg1 /\ 0 <= arg2 /\ 2*arg2 <= 1 + arg1 /\ arg2 <= 1 /\ arg3 <= 1 + arg2 /\ arg1 <= 4 + arg2 /\ arg1 = arg3, {all remain the same}>
<l2, end, arg1 <= 0 /\ arg2 <= arg1 /\ 1 + arg2 <= 0 /\ 2*arg2 <= 1 + arg1 /\ arg3 <= 1 + arg2 /\ arg1 = arg3, {all remain the same}>
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 5 <= arg2 /\ arg1 = arg3, {all remain the same}>
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ 2*arg2 <= 1 + arg1 /\ arg2 <= 1 /\ arg3 <= 1 + arg2 /\ arg1 = arg3, {all remain the same}>
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg2 /\ arg2 <= 4 /\ arg1 = arg3, {all remain the same}>
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ arg2 <= 1 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ arg1 = arg3, {all remain the same}>

Solving with 1 template(s).

LOG: CALL solveNonLinearGetFirstSolution

LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.041843s
Time used: 0.04147
Improving Solution with cost 9 ...

LOG: CALL solveNonLinearGetNextSolution

LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.365033s
Time used: 0.365037
Improving Solution with cost 4 ...

LOG: CALL solveNonLinearGetNextSolution

LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 1.000761s
Time used: 1.00075

LOG: SAT solveNonLinear - Elapsed time: 1.407636s
Cost: 4; Total time: 1.40726
Failed at location 2: 5 + arg1 <= arg2 + 2*arg3
Before Improving: 
Quasi-invariant at l2: 5 + arg1 <= arg2 + 2*arg3
Optimizing invariants...

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.014107s
Remaining time after improvement: 0.996477
Non-termination implied by a set of quasi-invariant(s):
Quasi-invariant at l2: 5 + arg1 <= arg2 + 2*arg3

Strengthening and disabling EXIT transitions...
Closed exits from l2: 5
Strengthening exit transition (result): 
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 5 + arg1 <= arg2 + 2*arg3 /\ 5 <= arg2 /\ arg1 = arg3, {all remain the same}>

Strengthening and disabling transitions...

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, arg2 <= arg1 /\ arg3 <= 1 + arg2 /\ 2 <= arg1 /\ 5 + arg1 <= arg2 + 2*arg3 /\ 5 <= arg2 /\ arg1 = arg3, {arg1 -> -1 + arg1, arg2 -> -1 + arg2, arg3 -> -1 + arg1, rest remain the same}>

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, 1 + arg1 <= arg2 /\ 1 <= arg1 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg2 /\ 5 + arg1 <= arg2 + 2*arg3 /\ arg1 = arg3, {arg1 -> 1 + arg1, arg2 -> -1 + arg2, arg3 -> 1 + arg1, rest remain the same}>

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, arg2 <= arg1 /\ 0 <= arg2 /\ 1 <= arg1 /\ arg3 <= 1 + arg2 /\ 5 + arg1 <= arg2 + 2*arg3 /\ arg1 <= 4 + arg2 /\ arg2 <= 4 /\ arg1 = arg3, {arg1 -> -1 + arg1, arg2 -> 2 + arg2, arg3 -> -1 + arg1, rest remain the same}>

Checking conditional non-termination of SCC {l2}...
EXIT TRANSITIONS:
<l2, end, arg1 <= 0 /\ 1 + arg1 <= arg2 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 5 + arg1 <= arg2 + 2*arg3 /\ 5 <= arg2 /\ arg1 = arg3, {all remain the same}>

Solving with 1 template(s).

LOG: CALL solveNonLinearGetFirstSolution

LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.017263s
Time used: 0.017147

LOG: SAT solveNonLinear - Elapsed time: 0.017263s
Cost: 0; Total time: 0.017147
Non-termination implied by a set of quasi-invariant(s):
Quasi-invariant at l2: arg2 <= 1 + arg1 + arg3

Strengthening and disabling EXIT transitions...
Closed exits from l2: 1

Strengthening and disabling transitions...

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, arg2 <= arg1 /\ arg2 <= 1 + arg1 + arg3 /\ arg3 <= 1 + arg2 /\ 2 <= arg1 /\ 5 + arg1 <= arg2 + 2*arg3 /\ 5 <= arg2 /\ arg1 = arg3, {arg1 -> -1 + arg1, arg2 -> -1 + arg2, arg3 -> -1 + arg1, rest remain the same}>

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, 1 + arg1 <= arg2 /\ 1 <= arg1 /\ arg2 <= 1 + arg1 + arg3 /\ arg3 <= 1 + arg2 /\ 2 + arg1 <= 2*arg2 /\ 2 <= arg2 /\ 5 + arg1 <= arg2 + 2*arg3 /\ arg1 = arg3, {arg1 -> 1 + arg1, arg2 -> -1 + arg2, arg3 -> 1 + arg1, rest remain the same}>

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, arg2 <= arg1 /\ 0 <= arg2 /\ 1 <= arg1 /\ arg2 <= 1 + arg1 + arg3 /\ arg3 <= 1 + arg2 /\ 5 + arg1 <= arg2 + 2*arg3 /\ arg1 <= 4 + arg2 /\ arg2 <= 4 /\ arg1 = arg3, {arg1 -> -1 + arg1, arg2 -> 2 + arg2, arg3 -> -1 + arg1, rest remain the same}>

Calling reachability with...
Transition: <l2, end, true, {all remain the same}>
Conditions: arg1 <= arg3, arg3 <= arg1, 5 + arg1 <= arg2 + 2*arg3, arg2 <= 1 + arg1 + arg3, 
OPEN EXITS: 
<l2, end, arg2 <= 1 + arg1 + arg3 /\ 5 + arg1 <= arg2 + 2*arg3 /\ arg1 = arg3, {all remain the same}>

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

Calling reachability with...
Transition: <l0, l2, 0 <= undef30 /\ 1 <= undef29 /\ arg1 = undef30 /\ arg2 = undef30 /\ arg3 = undef30, {all remain the same}>
Conditions: arg2 <= 1 + arg1 + arg3, 5 + arg1 <= arg2 + 2*arg3, arg1 = arg3, 
OPEN EXITS: 
<l0, l2, 0 <= undef30 /\ 1 <= undef29 /\ arg2 <= 1 + arg1 + arg3 /\ 5 + arg1 <= arg2 + 2*arg3 /\ arg1 = arg3 /\ arg1 = undef30 /\ arg2 = undef30 /\ arg3 = undef30, {all remain the same}>

> Conditions are reachable!

Program does NOT terminate