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: 0, main_x -> ¿functionCall(__VERIFIER_nondet_int), main_y -> ¿functionCall(__VERIFIER_nondet_int)}> = 2))> = 2)> (main_x - 1), main_y -> (main_y + main_x)}> = (main_x + 1)))> = (main_x + 1))> (main_y - 1)}> = (main_x + 3)))> = (main_x + 3))> (main_x + 1), main_y -> (main_y - 2)}> (main_y - 1)}> (main_x - 1), main_y -> (main_y - main_x)}> 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: 0}> ¿functionCall(__VERIFIER_nondet_int)}> varCall_1}> ¿functionCall(__VERIFIER_nondet_int)}> varCall_2}> = 2)> = 2))> (main_x - 1), main_y -> (main_y + main_x)}> = (main_x + 1))> = (main_x + 1)))> ¿functionCall(__VERIFIER_nondet_int)}> (main_y - 1)}> = (main_x + 3))> = (main_x + 3)))> ¿functionCall(__VERIFIER_nondet_int)}> (main_x + 1), main_y -> (main_y - 2)}> (main_y - 1)}> (main_x - 1), main_y -> (main_y - main_x)}> 0}> Fresh variables: Undef variables: Abstraction variables: Exit nodes: 18, 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, ()] | | main | function | [integer, ()] | x | local variable | integer | | y | local variable | integer | | Main function: main Preprocessed LLVMGraph Init Location: 0 Transitions: = 2), par{main_x -> (undef5 - 1), main_y -> (undef6 + (undef5 - 1))}> = 2)), par{main_x -> undef5, main_y -> undef6}> = (main_x + 1)) /\ (undef7 = 0) /\ ((main_x - 1) >= 2), par{main_x -> ((main_x - 1) - 1), main_y -> ((main_y - (main_x - 1)) + ((main_x - 1) - 1))}> = (main_x + 1)) /\ (undef7 = 0) /\ not(((main_x - 1) >= 2)), par{main_x -> (main_x - 1), main_y -> (main_y - (main_x - 1))}> = (main_x + 1)) /\ (undef7 = 1), par{main_y -> (main_y - 1)}> = (main_x + 1))) /\ ((main_x - 1) >= 2), par{main_x -> ((main_x - 1) - 1), main_y -> ((main_y - (main_x - 1)) + ((main_x - 1) - 1))}> = (main_x + 1))) /\ not(((main_x - 1) >= 2)), par{main_x -> (main_x - 1), main_y -> (main_y - (main_x - 1))}> = (main_x + 3)) /\ (undef8 = 0), par{main_y -> (main_y - 1)}> = (main_x + 3)) /\ (undef8 = 1), par{main_x -> (main_x + 1), main_y -> (main_y - 2)}> = (main_x + 3))), par{main_y -> (main_y - 1)}> Fresh variables: undef5, undef6, undef7, undef8, Undef variables: undef5, undef6, undef7, undef8, Abstraction variables: Exit nodes: 18, Accepting locations: Asserts: ************************************************************* ******************************************************************************************* *********************** WORKING TRANSITION SYSTEM (DAG) *********************** ******************************************************************************************* Init Location: 0 Graph 0: Transitions: Variables: Graph 1: Transitions: -2 + main_x, main_y -> -1 + main_y, rest remain the same}> -1 + main_y, rest remain the same}> -2 + main_x, main_y -> -1 + main_y, rest remain the same}> -1 + main_y, rest remain the same}> 1 + main_x, main_y -> -2 + main_y, rest remain the same}> -1 + main_y, rest remain the same}> Variables: main_x, main_y Graph 2: Transitions: Variables: Precedence: Graph 0 Graph 1 -1 + undef5, main_y -> -1 + undef5 + undef6, rest remain the same}> Graph 2 undef5, main_y -> undef6, rest remain the same}> -1 + main_x, main_y -> 1 - main_x + main_y, rest remain the same}> -1 + main_x, main_y -> 1 - main_x + main_y, rest remain the same}> Map Locations to Subgraph: ( 0 , 0 ) ( 5 , 1 ) ( 9 , 1 ) ( 18 , 2 ) ******************************************************************************************* ******************************** CHECKING ASSERTIONS ******************************** ******************************************************************************************* Proving termination of subgraph 0 Proving termination of subgraph 1 Checking unfeasibility... Time used: 0.017181 Checking conditional termination of SCC {l5, l9}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001867s Ranking function: -19 - 3*main_x + 7*main_y New Graphs: Transitions: -1 + main_y, rest remain the same}> -2 + main_x, main_y -> -1 + main_y, rest remain the same}> -1 + main_y, rest remain the same}> 1 + main_x, main_y -> -2 + main_y, rest remain the same}> -1 + main_y, rest remain the same}> Variables: main_x, main_y Checking conditional termination of SCC {l5, l9}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000950s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.069040s [3946 : 3948] [3946 : 3949] Successful child: 3948 [ Invariant Graph ] Strengthening and disabling transitions... LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): -2 + main_x, main_y -> -1 + main_y, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): -1 + main_y, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): -2 + main_x, main_y -> -1 + main_y, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): -1 + main_y, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): 1 + main_x, main_y -> -2 + main_y, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): -1 + 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): -1 + main_y, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): -2 + main_x, main_y -> -1 + main_y, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): -1 + main_y, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): 1 + main_x, main_y -> -2 + main_y, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): -1 + main_y, rest remain the same}> Ranking function: 1 + main_x + main_y New Graphs: Transitions: -2 + main_x, main_y -> -1 + main_y, rest remain the same}> Variables: main_x, main_y Checking conditional termination of SCC {l5}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000481s Ranking function: main_x - main_y New Graphs: INVARIANTS: 5: 1 <= main_x , 9: 1 <= main_x , Quasi-INVARIANTS to narrow Graph: 5: 9: Proving termination of subgraph 2 Analyzing SCC {l18}... No cycles found. Program Terminates