/export/starexec/sandbox/solver/bin/starexec_run_termcomp17 /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files


--------------------------------------------------------------------------------


YES

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_a -> ~(¿functionCall(__VERIFIER_nondet_int)), main_b -> ~(¿functionCall(__VERIFIER_nondet_int))}>
<l1, l2, true>
<l2, l5, not((main_a > main_b))>
<l2, l3, (main_a > main_b)>
<l3, l4, true, seq{main_b -> (main_b + main_a), main_a -> (main_a + 1)}>
<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_a -> ~(varCall_1)}>
<l9, l10, true, seq{varCall_2 -> ¿functionCall(__VERIFIER_nondet_int)}>
<l10, l1, true, seq{main_b -> ~(varCall_2)}>
<l1, l2, true>
<l2, l3, (main_a > main_b)>
<l2, l5, not((main_a > main_b))>
<l3, l4, true, seq{main_b -> (main_b + main_a), main_a -> (main_a + 1)}>
<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 [4 idents]:
__VERIFIER_nondet_int | function | [integer, ()] | <line: 3, col: 1> | <line: 8, col: 11> <line: 9, col: 11>
main | function | [integer, ()] | <line: 5, col: 1>
a | local variable | integer | <line: 6, col: 5> | <line: 8, col: 5> <line: 11, col: 12> <line: 12, col: 17> <line: 13, col: 9> <line: 13, col: 13>
b | local variable | integer | <line: 7, col: 5> | <line: 9, col: 5> <line: 11, col: 16> <line: 12, col: 9> <line: 12, col: 13>

Main function: main
Preprocessed LLVMGraph
Init Location: 0
Transitions:
<l0, l2, (main_a = ~(undef3)) /\ (main_b = ~(undef4))>
<l2, l2, (main_a > main_b), par{main_a -> (main_a + 1), main_b -> (main_b + main_a)}>
<l2, l6, not((main_a > main_b))>

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, 1 + main_b <= main_a, {main_a -> 1 + main_a, main_b -> main_a + main_b, rest remain the same}>
Variables:
main_a, main_b

Graph 2:
Transitions:
Variables:

Precedence: 
Graph 0

Graph 1
<l0, l2, main_a + undef3 = 0 /\ main_b + undef4 = 0, {all remain the same}>

Graph 2
<l2, l6, main_a <= main_b, {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: 0.001927

Checking conditional termination of SCC {l2}...

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000584s

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.001671s
[21370 : 21371]
[21370 : 21372]
Successful child: 21371
[ 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, 1 + main_b <= main_a, {main_a -> 1 + main_a, main_b -> main_a + main_b, rest remain the same}>
[ Termination Graph ]
Strengthening and disabling transitions...
> It's unfeasible. Removing transition: 
<l2, l2, 1 + main_b <= main_a, {main_a -> 1 + main_a, main_b -> main_a + main_b, rest remain the same}>
New Graphs: 

LOG: CALL check - Post:1 + main_a <= main_b - Process 1
* Exit transition: <l0, l2, main_a + undef3 = 0 /\ main_b + undef4 = 0, {all remain the same}>
* Postcondition  : 1 + main_a <= main_b

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000351s
> Postcondition is not implied!

LOG: RETURN check - Elapsed time: 0.000441s
INVARIANTS: 
2: 
Quasi-INVARIANTS to narrow Graph: 
2: 1 + main_a <= main_b , 
Narrowing transition: 
<l2, l2, 1 + main_b <= main_a, {main_a -> 1 + main_a, main_b -> main_a + main_b, rest remain the same}>

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

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000565s

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.001768s
[21370 : 21376]
[21370 : 21377]
Successful child: 21376
[ 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, 1 + main_b <= main_a /\ 1 <= main_b, {main_a -> 1 + main_a, main_b -> main_a + main_b, 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, 1 + main_b <= main_a /\ 1 <= main_b, {main_a -> 1 + main_a, main_b -> main_a + main_b, rest remain the same}>
Ranking function: main_a - main_b
New Graphs: 

LOG: CALL check - Post:1 <= main_b - Process 2
* Exit transition: <l0, l2, main_b <= main_a /\ main_a + undef3 = 0 /\ main_b + undef4 = 0, {all remain the same}>
* Postcondition  : 1 <= main_b

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000422s
> Postcondition is not implied!

LOG: RETURN check - Elapsed time: 0.000510s
INVARIANTS: 
2: 
Quasi-INVARIANTS to narrow Graph: 
2: 1 <= main_b , 
Narrowing transition: 
<l2, l2, 1 + main_b <= main_a, {main_a -> 1 + main_a, main_b -> main_a + main_b, rest remain the same}>

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

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000616s

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.001965s
[21370 : 21381]
[21370 : 21382]
Successful child: 21381
[ 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_b <= 0 /\ 1 + main_b <= main_a, {main_a -> 1 + main_a, main_b -> main_a + main_b, rest remain the same}>
[ Termination Graph ]
Strengthening and disabling transitions...
> It's unfeasible. Removing transition: 
<l2, l2, main_b <= 0 /\ 1 + main_b <= main_a, {main_a -> 1 + main_a, main_b -> main_a + main_b, rest remain the same}>
New Graphs: 

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

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000530s
> Postcondition is not implied!

LOG: RETURN check - Elapsed time: 0.000634s
INVARIANTS: 
2: 
Quasi-INVARIANTS to narrow Graph: 
2: main_a <= main_b , 
Narrowing transition: 
<l2, l2, main_b <= 0 /\ 1 + main_b <= main_a, {main_a -> 1 + main_a, main_b -> main_a + main_b, rest remain the same}>

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

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000615s

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.002010s
[21370 : 21386]
[21370 : 21387]
Successful child: 21386
[ 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, 1 + main_b <= main_a /\ main_b = 0, {main_a -> 1 + main_a, main_b -> main_a + main_b, 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, 1 + main_b <= main_a /\ main_b = 0, {main_a -> 1 + main_a, main_b -> main_a + main_b, rest remain the same}>
Ranking function: -main_b
New Graphs: 

LOG: CALL check - Post:0 <= main_b - Process 4
* Exit transition: <l0, l2, main_b <= 0 /\ 1 + main_b <= main_a /\ main_a + undef3 = 0 /\ main_b + undef4 = 0, {all remain the same}>
* Postcondition  : 0 <= main_b

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000483s
> Postcondition is not implied!

LOG: RETURN check - Elapsed time: 0.000590s
INVARIANTS: 
2: 
Quasi-INVARIANTS to narrow Graph: 
2: 0 <= main_b , 
Narrowing transition: 
<l2, l2, main_b <= 0 /\ 1 + main_b <= main_a, {main_a -> 1 + main_a, main_b -> main_a + main_b, rest remain the same}>

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

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000571s

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.001913s
[21370 : 21391]
[21370 : 21392]
Successful child: 21391
[ 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, 1 <= main_a /\ 1 + main_b <= main_a /\ 1 + main_b <= 0, {main_a -> 1 + main_a, main_b -> main_a + main_b, 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, 1 <= main_a /\ 1 + main_b <= main_a /\ 1 + main_b <= 0, {main_a -> 1 + main_a, main_b -> main_a + main_b, rest remain the same}>
Ranking function: main_a - 2*main_b
New Graphs: 

LOG: CALL check - Post:1 <= main_a - Process 5
* Exit transition: <l0, l2, 1 + main_b <= main_a /\ 1 + main_b <= 0 /\ main_a + undef3 = 0 /\ main_b + undef4 = 0, {all remain the same}>
* Postcondition  : 1 <= main_a

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000486s
> Postcondition is not implied!

LOG: RETURN check - Elapsed time: 0.000596s
INVARIANTS: 
2: 
Quasi-INVARIANTS to narrow Graph: 
2: 1 <= main_a , 
Narrowing transition: 
<l2, l2, 1 + main_b <= main_a /\ 1 + main_b <= 0, {main_a -> 1 + main_a, main_b -> main_a + main_b, rest remain the same}>

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

LOG: CALL solveLinear

LOG: RETURN solveLinear - Elapsed time: 0.000843s
Ranking function: -main_a
New Graphs: 
Proving termination of subgraph 2
Analyzing SCC {l6}...
No cycles found.

Program Terminates