NO

Solver Timeout: 4
Global Timeout: 300
Maximum number of concurrent processes: 900
*******************************************************************************************
*********************** UNPROCESSED TRANSITION SYSTEMS PER FUNCTION ***********************
*******************************************************************************************


List of LLVMGraphs + assumeNodes + staticAssertNodes [1] :

+++++++++++++++++++++++++++++++ main +++++++++++++++++++++++++++++++
+                                                                  +
Init Location: 0
Transitions:
<l0, l1, true, seq{main__func_return_ -> 0, main_x -> ¿functionCall(__VERIFIER_nondet_int), main_y -> ¿functionCall(__VERIFIER_nondet_int)}>
<l1, l2, true>
<l2, l5, not((main_x < 5))>
<l2, l3, (main_x < 5)>
<l3, l4, true, seq{main_oldx -> main_x, main_x -> (main_oldx - main_y), main_y -> (main_oldx + main_y)}>
<l4, l2, true>
<l5, l6, true, seq{main__func_return_ -> 0}>

Fresh variables:

Undef variables:

Abstraction variables:

Exit nodes:

Accepting locations:

Asserts:

+ Assume Nodes [0]: ++++++++++++++++++++++++++++++++++++++++++++++++
       
+ Static Assert Nodes [0]: +++++++++++++++++++++++++++++++++++++++++
       
+ After preprocess (paralelization): ++++++++++++++++++++++++++++++

Init Location: 0
Transitions:
<l0, l7, true, seq{main__func_return_ -> 0}>
<l7, l8, true, seq{varCall_1 -> ¿functionCall(__VERIFIER_nondet_int)}>
<l8, l9, true, seq{main_x -> varCall_1}>
<l9, l10, true, seq{varCall_2 -> ¿functionCall(__VERIFIER_nondet_int)}>
<l10, l1, true, seq{main_y -> varCall_2}>
<l1, l2, true>
<l2, l3, (main_x < 5)>
<l2, l5, not((main_x < 5))>
<l3, l4, true, seq{main_oldx -> main_x, main_x -> (main_oldx - main_y), main_y -> (main_oldx + main_y)}>
<l4, l2, true>
<l5, l6, true, seq{main__func_return_ -> 0}>

Fresh variables:

Undef variables:

Abstraction variables:

Exit nodes:
6, 
Accepting locations:

Asserts:

+                                                                  +
+++++++++++++++++++++++++++++++ main +++++++++++++++++++++++++++++++


Function Return and Parameters Information [2 functions]:
    function name: __VERIFIER_nondet_int [1 return + 0 parameters]        demangled: __VERIFIER_nondet_int
        __VERIFIER_nondet_int__func_return_      [function result] : int
    function name: main [1 return + 0 parameters]        demangled: main
        main__func_return_      [function result] : int


AST Ident Scanner Information [5 idents]:
__VERIFIER_nondet_int | function | [integer, ()] | <line: 20, col: 1> | <line: 24, col: 9> <line: 25, col: 9>
main | function | [integer, ()] | <line: 22, col: 1>
x | local variable | integer | <line: 23, col: 5> | <line: 24, col: 5> <line: 26, col: 12> <line: 27, col: 16> <line: 28, col: 9>
y | local variable | integer | <line: 23, col: 5> | <line: 25, col: 5> <line: 28, col: 20> <line: 29, col: 9> <line: 29, col: 20>
oldx | local variable | integer | <line: 23, col: 5> | <line: 27, col: 9> <line: 28, col: 13> <line: 29, col: 13>

Main function: main
Preprocessed LLVMGraph
Init Location: 0
Transitions:
<l0, l2, (main_x = undef3) /\ (main_y = undef4)>
<l2, l2, (main_x < 5), par{main_x -> (main_x - main_y), main_y -> (main_x + main_y)}>
<l2, l6, not((main_x < 5))>

Fresh variables:
undef3, undef4, 

Undef variables:
undef3, undef4, 

Abstraction variables:

Exit nodes:
6, 
Accepting locations:

Asserts:

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

Init Location: 0
Graph 0:
Transitions:
Variables:

Graph 1:
Transitions:
<l2, l2, main_x <= 4, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>
Variables:
main_x, main_y

Graph 2:
Transitions:
Variables:

Precedence: 
Graph 0

Graph 1
<l0, l2, main_x = undef3 /\ main_y = undef4, {all remain the same}>

Graph 2
<l2, l6, 5 <= main_x, {all remain the same}>

Map Locations to Subgraph:
( 0 , 0 )
( 2 , 1 )
( 6 , 2 )

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

Proving termination of subgraph 0
Proving termination of subgraph 1
Checking unfeasibility...
Time used: 0.001671

Checking conditional termination of SCC {l2}...

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000651s

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.001488s
[31114 : 31116]
[31114 : 31117]
Successful child: 31116
[ Invariant Graph ]
Strengthening and disabling transitions...

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
It's unfeasible. Removing transition: 
<l2, l2, main_x <= 4, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>
[ Termination Graph ]
Strengthening and disabling transitions...

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
It's unfeasible. Removing transition: 
<l2, l2, main_x <= 4, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>
New Graphs: 

LOG: CALL check - Post:5 <= main_x - Process 1
* Exit transition: <l0, l2, main_x = undef3 /\ main_y = undef4, {all remain the same}>
* Postcondition  : 5 <= main_x

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000225s
> Postcondition is not implied!

LOG: RETURN check - Elapsed time: 0.000261s
INVARIANTS: 
2: 
Quasi-INVARIANTS to narrow Graph: 
2: 5 <= main_x , 
Narrowing transition: 
<l2, l2, main_x <= 4, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>

LOG: Narrow transition size 1
invGraph after Narrowing: 
Transitions:
<l2, l2, main_x <= 4, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>
Variables:
main_x, main_y
Checking conditional termination of SCC {l2}...

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000347s

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000888s
[31114 : 31121]
[31114 : 31122]
Successful child: 31121
[ Invariant Graph ]
Strengthening and disabling transitions...

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, main_x <= 4 /\ 8 + main_y <= main_x, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>
[ Termination Graph ]
Strengthening and disabling transitions...

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, main_x <= 4 /\ 8 + main_y <= main_x, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>
Ranking function: 4 - main_x
New Graphs: 

LOG: CALL check - Post:8 + main_y <= main_x - Process 2
* Exit transition: <l0, l2, main_x <= 4 /\ main_x = undef3 /\ main_y = undef4, {all remain the same}>
* Postcondition  : 8 + main_y <= main_x

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000261s
> Postcondition is not implied!

LOG: RETURN check - Elapsed time: 0.000303s
INVARIANTS: 
2: 
Quasi-INVARIANTS to narrow Graph: 
2: 8 + main_y <= main_x , 
Narrowing transition: 
<l2, l2, main_x <= 4, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>

LOG: Narrow transition size 1
invGraph after Narrowing: 
Transitions:
<l2, l2, main_x <= 4 /\ main_x <= 7 + main_y, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>
Variables:
main_x, main_y
Checking conditional termination of SCC {l2}...

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000293s

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000946s
[31114 : 31126]
[31114 : 31127]
Successful child: 31126
[ Invariant Graph ]
Strengthening and disabling transitions...

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, main_x <= 4 /\ 7 + main_y <= 0 /\ main_x <= 7 + main_y, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>
[ Termination Graph ]
Strengthening and disabling transitions...

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, main_x <= 4 /\ 7 + main_y <= 0 /\ main_x <= 7 + main_y, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>
Ranking function: 4 - main_x
New Graphs: 

LOG: CALL check - Post:7 + main_y <= 0 - Process 3
* Exit transition: <l0, l2, main_x <= 4 /\ main_x <= 7 + main_y /\ main_x = undef3 /\ main_y = undef4, {all remain the same}>
* Postcondition  : 7 + main_y <= 0

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000285s
> Postcondition is not implied!

LOG: RETURN check - Elapsed time: 0.000328s
INVARIANTS: 
2: 
Quasi-INVARIANTS to narrow Graph: 
2: 7 + main_y <= 0 , 
Narrowing transition: 
<l2, l2, main_x <= 4 /\ main_x <= 7 + main_y, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>

LOG: Narrow transition size 1
invGraph after Narrowing: 
Transitions:
<l2, l2, main_x <= 4 /\ main_x <= 7 + main_y /\ 0 <= 6 + main_y, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>
Variables:
main_x, main_y
Checking conditional termination of SCC {l2}...

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000330s

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.001092s
[31114 : 31131]
[31114 : 31132]
Successful child: 31131
[ Invariant Graph ]
Strengthening and disabling transitions...

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, main_x <= 4 /\ main_x <= 7 + main_y /\ 0 <= 6 + main_y /\ 12 + main_x + main_y <= 0, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>
[ Termination Graph ]
Strengthening and disabling transitions...

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, main_x <= 4 /\ main_x <= 7 + main_y /\ 0 <= 6 + main_y /\ 12 + main_x + main_y <= 0, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>
Ranking function: 6 + main_y
New Graphs: 

LOG: CALL check - Post:12 + main_x + main_y <= 0 - Process 4
* Exit transition: <l0, l2, main_x <= 4 /\ main_x <= 7 + main_y /\ 0 <= 6 + main_y /\ main_x = undef3 /\ main_y = undef4, {all remain the same}>
* Postcondition  : 12 + main_x + main_y <= 0

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000318s
> Postcondition is not implied!

LOG: RETURN check - Elapsed time: 0.000370s
INVARIANTS: 
2: 
Quasi-INVARIANTS to narrow Graph: 
2: 12 + main_x + main_y <= 0 , 
Narrowing transition: 
<l2, l2, main_x <= 4 /\ main_x <= 7 + main_y /\ 0 <= 6 + main_y, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>

LOG: Narrow transition size 1
invGraph after Narrowing: 
Transitions:
<l2, l2, main_x <= 4 /\ main_x <= 7 + main_y /\ 0 <= 6 + main_y /\ 0 <= 11 + main_x + main_y, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>
Variables:
main_x, main_y
Checking conditional termination of SCC {l2}...

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000370s

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.001214s
[31114 : 31136]
[31114 : 31137]
Successful child: 31136
[ Invariant Graph ]
Strengthening and disabling transitions...

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, main_x <= 7 + main_y /\ 0 <= 6 + main_y /\ 11 + main_x <= 0 /\ 0 <= 11 + main_x + main_y, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>
[ Termination Graph ]
Strengthening and disabling transitions...

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, main_x <= 7 + main_y /\ 0 <= 6 + main_y /\ 11 + main_x <= 0 /\ 0 <= 11 + main_x + main_y, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>
Ranking function: 14 + main_y
New Graphs: 

LOG: CALL check - Post:11 + main_x <= 0 - Process 5
* Exit transition: <l0, l2, main_x <= 4 /\ main_x <= 7 + main_y /\ 0 <= 6 + main_y /\ 0 <= 11 + main_x + main_y /\ main_x = undef3 /\ main_y = undef4, {all remain the same}>
* Postcondition  : 11 + main_x <= 0

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000287s
> Postcondition is not implied!

LOG: RETURN check - Elapsed time: 0.000340s
INVARIANTS: 
2: 
Quasi-INVARIANTS to narrow Graph: 
2: 11 + main_x <= 0 , 
Narrowing transition: 
<l2, l2, main_x <= 4 /\ main_x <= 7 + main_y /\ 0 <= 6 + main_y /\ 0 <= 11 + main_x + main_y, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>

LOG: Narrow transition size 1
invGraph after Narrowing: 
Transitions:
<l2, l2, main_x <= 4 /\ main_x <= 7 + main_y /\ 0 <= 6 + main_y /\ 0 <= 11 + main_x + main_y /\ 0 <= 10 + main_x, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>
Variables:
main_x, main_y
Checking conditional termination of SCC {l2}...

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000405s

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.001358s
[31114 : 31141]
[31114 : 31142]
Successful child: 31141
[ Invariant Graph ]
Strengthening and disabling transitions...

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, main_x <= 4 /\ 0 <= 6 + main_y /\ 0 <= 11 + main_x + main_y /\ 0 <= 10 + main_x /\ 20 + main_x <= main_y, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>
[ Termination Graph ]
Strengthening and disabling transitions...

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, main_x <= 4 /\ 0 <= 6 + main_y /\ 0 <= 11 + main_x + main_y /\ 0 <= 10 + main_x /\ 20 + main_x <= main_y, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>
Ranking function: 10 + main_x
New Graphs: 

LOG: CALL check - Post:20 + main_x <= main_y - Process 6
* Exit transition: <l0, l2, main_x <= 4 /\ main_x <= 7 + main_y /\ 0 <= 6 + main_y /\ 0 <= 11 + main_x + main_y /\ 0 <= 10 + main_x /\ main_x = undef3 /\ main_y = undef4, {all remain the same}>
* Postcondition  : 20 + main_x <= main_y

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000320s
> Postcondition is not implied!

LOG: RETURN check - Elapsed time: 0.000382s
INVARIANTS: 
2: 
Quasi-INVARIANTS to narrow Graph: 
2: 20 + main_x <= main_y , 
Narrowing transition: 
<l2, l2, main_x <= 4 /\ main_x <= 7 + main_y /\ 0 <= 6 + main_y /\ 0 <= 11 + main_x + main_y /\ 0 <= 10 + main_x, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>

LOG: Narrow transition size 1
invGraph after Narrowing: 
Transitions:
<l2, l2, main_x <= 4 /\ main_x <= 7 + main_y /\ 0 <= 6 + main_y /\ 0 <= 11 + main_x + main_y /\ 0 <= 10 + main_x /\ main_y <= 19 + main_x, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>
Variables:
main_x, main_y
Checking conditional termination of SCC {l2}...

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000446s

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.001522s
[31114 : 31146]
[31114 : 31147]
Successful child: 31146
[ Invariant Graph ]
Strengthening and disabling transitions...

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, main_x <= 4 /\ main_x <= 7 + main_y /\ 0 <= 11 + main_x + main_y /\ 0 <= 10 + main_x /\ 19 <= main_y /\ main_y <= 19 + main_x, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>
[ Termination Graph ]
Strengthening and disabling transitions...

LOG: CALL solverLinear in Graph for feasibility

LOG: RETURN solveLinear in Graph for feasibility
Strengthening transition (result): 
<l2, l2, main_x <= 4 /\ main_x <= 7 + main_y /\ 0 <= 11 + main_x + main_y /\ 0 <= 10 + main_x /\ 19 <= main_y /\ main_y <= 19 + main_x, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>
Ranking function: 14 + main_x
New Graphs: 

LOG: CALL check - Post:19 <= main_y - Process 7
* Exit transition: <l0, l2, main_x <= 4 /\ main_x <= 7 + main_y /\ 0 <= 6 + main_y /\ 0 <= 11 + main_x + main_y /\ 0 <= 10 + main_x /\ main_y <= 19 + main_x /\ main_x = undef3 /\ main_y = undef4, {all remain the same}>
* Postcondition  : 19 <= main_y

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000376s
> Postcondition is not implied!

LOG: RETURN check - Elapsed time: 0.000449s
INVARIANTS: 
2: 
Quasi-INVARIANTS to narrow Graph: 
2: 19 <= main_y , 
Narrowing transition: 
<l2, l2, main_x <= 4 /\ main_x <= 7 + main_y /\ 0 <= 6 + main_y /\ 0 <= 11 + main_x + main_y /\ 0 <= 10 + main_x /\ main_y <= 19 + main_x, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>

LOG: Narrow transition size 1
invGraph after Narrowing: 
Transitions:
<l2, l2, main_x <= 4 /\ main_x <= 7 + main_y /\ 0 <= 6 + main_y /\ 0 <= 11 + main_x + main_y /\ 0 <= 10 + main_x /\ main_y <= 19 + main_x /\ main_y <= 18, {main_x -> main_x - main_y, main_y -> main_x + main_y, rest remain the same}>
Variables:
main_x, main_y
Checking conditional termination of SCC {l2}...

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000479s

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.001664s
[31114 : 31151]
[31114 : 31152]
Solving with 1 template(s).

LOG: CALL solveNonLinearGetFirstSolution

LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.014192s
Time used: 0.013468

[31114 : 31156]
[31114 : 31160]
Successful child: 31156

Program does NOT terminate