NO Solver Timeout: 4 Global Timeout: 60 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)}> 1))> 1)> (2 * 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}> 1)> 1))> (2 * main_x)}> 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 [3 idents]: __VERIFIER_nondet_int | function | [integer, ()] | | main | function | [integer, ()] | x | local variable | integer | | Main function: main Preprocessed LLVMGraph Init Location: 0 Transitions: 1), par{main_x -> (2 * main_x)}> 1))> Fresh variables: undef2, Undef variables: undef2, Abstraction variables: Exit nodes: 6, Accepting locations: Asserts: ************************************************************* ******************************************************************************************* *********************** WORKING TRANSITION SYSTEM (DAG) *********************** ******************************************************************************************* Init Location: 0 Graph 0: Transitions: Variables: Graph 1: Transitions: 2*main_x, rest remain the same}> Variables: main_x Graph 2: Transitions: Variables: Precedence: Graph 0 Graph 1 Graph 2 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: 0.001514 Checking conditional termination of SCC {l2}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000487s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001301s [18633 : 18635] [18633 : 18636] Successful child: 18635 [ 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: 2*main_x, rest remain the same}> [ Termination Graph ] Strengthening and disabling transitions... > It's unfeasible. Removing transition: 2*main_x, rest remain the same}> New Graphs: LOG: CALL check - Post:main_x <= 1 - Process 1 * Exit transition: * Postcondition : main_x <= 1 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000360s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000440s INVARIANTS: 2: Quasi-INVARIANTS to narrow Graph: 2: main_x <= 1 , Narrowing transition: 2*main_x, rest remain the same}> LOG: Narrow transition size 1 invGraph after Narrowing: Transitions: 2*main_x, rest remain the same}> Variables: main_x Checking conditional termination of SCC {l2}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000490s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001400s [18633 : 18640] [18633 : 18641] Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.005998s Time used: 0.005694 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.016961s Time used: 0.016956 LOG: SAT solveNonLinear - Elapsed time: 0.022960s Cost: 1; Total time: 0.02265 Quasi-ranking function: 50000 - main_x New Graphs: Transitions: 2*main_x, rest remain the same}> Variables: main_x Checking conditional termination of SCC {l2}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000460s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001331s [18633 : 18732] [18633 : 18733] Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.006179s Time used: 0.005861 [18633 : 18748] [18633 : 18752] Successful child: 18748 Program does NOT terminate