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), main_y -> ¿functionCall(__VERIFIER_nondet_int)}> = 5)> = 5))> = 0))> = 0)> (main_y - 1)}> 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}> = 5)> = 5))> = 0)> = 0))> (main_y - 1)}> 0}> Fresh variables: Undef variables: Abstraction variables: Exit nodes: 8, 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: = 5)> = 5))> = 0), par{main_y -> (main_y - 1)}> = 0))> Fresh variables: undef3, undef4, Undef variables: undef3, undef4, Abstraction variables: Exit nodes: 8, Accepting locations: Asserts: ************************************************************* ******************************************************************************************* *********************** WORKING TRANSITION SYSTEM (DAG) *********************** ******************************************************************************************* Init Location: 0 Graph 0: Transitions: Variables: Graph 1: Transitions: -1 + main_y, rest remain the same}> Variables: main_x, main_y Graph 2: Transitions: Variables: Precedence: Graph 0 Graph 1 Graph 2 Map Locations to Subgraph: ( 0 , 0 ) ( 3 , 1 ) ( 8 , 2 ) ******************************************************************************************* ******************************** CHECKING ASSERTIONS ******************************** ******************************************************************************************* Proving termination of subgraph 0 Proving termination of subgraph 1 Checking unfeasibility... Time used: 0.001812 Checking conditional termination of SCC {l3}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000821s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001363s [58878 : 58880] [58878 : 58881] Successful child: 58880 [ 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: -1 + main_y, rest remain the same}> [ Termination Graph ] Strengthening and disabling transitions... > It's unfeasible. Removing transition: -1 + main_y, rest remain the same}> New Graphs: LOG: CALL check - Post:1 + main_x <= 0 - Process 1 * Exit transition: * Postcondition : 1 + main_x <= 0 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000515s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000618s INVARIANTS: 3: Quasi-INVARIANTS to narrow Graph: 3: 1 + main_x <= 0 , Narrowing transition: -1 + main_y, rest remain the same}> LOG: Narrow transition size 1 invGraph after Narrowing: Transitions: -1 + main_y, rest remain the same}> Variables: main_x, main_y Checking conditional termination of SCC {l3}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000802s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001499s [58878 : 58885] [58878 : 58886] Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.006958s Time used: 0.006649 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 1.000336s Time used: 1.00023 LOG: SAT solveNonLinear - Elapsed time: 1.007294s Cost: 1; Total time: 1.00688 Termination implied by a set of invariant(s): Invariant at l3: 0 <= main_x [ Invariant 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}> [ 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}> Quasi-ranking function: 50000 + main_y New Graphs: Transitions: -1 + main_y, rest remain the same}> Variables: main_x, main_y Checking conditional termination of SCC {l3}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000498s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001791s [58878 : 58890] [58878 : 58891] Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.007878s Time used: 0.007239 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 1.000555s Time used: 1.00045 LOG: SAT solveNonLinear - Elapsed time: 1.008433s Cost: 1; Total time: 1.00769 Quasi-ranking function: 50000 + main_x + main_y New Graphs: Transitions: -1 + main_y, rest remain the same}> Variables: main_x, main_y Checking conditional termination of SCC {l3}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000608s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.002311s [58878 : 58895] [58878 : 58896] Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.008546s Time used: 0.007769 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 1.011691s Time used: 1.01159 LOG: SAT solveNonLinear - Elapsed time: 1.020237s Cost: 1; Total time: 1.01936 Quasi-ranking function: 50000 - main_x + main_y New Graphs: Transitions: -1 + main_y, rest remain the same}> Variables: main_x, main_y Checking conditional termination of SCC {l3}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000688s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.002618s [58878 : 58900] [58878 : 58901] Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.159411s Time used: 4.1578 [58878 : 58905] [58878 : 58909] Successful child: 58905 Program does NOT terminate