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_i -> ¿functionCall(__VERIFIER_nondet_int), main_j -> ¿functionCall(__VERIFIER_nondet_int)}> (main_i + 4)}> (main_j + 1), main_i -> (main_i + 2)}> 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}> (main_i + 4)}> (main_j + 1), main_i -> (main_i + 2)}> Fresh variables: Undef variables: Abstraction variables: Exit nodes: 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, ()] | i | local variable | integer | | j | local variable | integer | | Main function: main Preprocessed LLVMGraph Init Location: 0 Transitions: (main_i + 4)}> (main_i + 2), main_j -> (main_j + 1)}> Fresh variables: undef3, undef4, Undef variables: undef3, undef4, Abstraction variables: Exit nodes: Accepting locations: Asserts: ************************************************************* ******************************************************************************************* *********************** WORKING TRANSITION SYSTEM (DAG) *********************** ******************************************************************************************* Init Location: 0 Graph 0: Transitions: Variables: Graph 1: Transitions: 4 + main_i, rest remain the same}> 2 + main_i, main_j -> 1 + main_j, rest remain the same}> Variables: main_i, main_j Precedence: Graph 0 Graph 1 Map Locations to Subgraph: ( 0 , 0 ) ( 2 , 1 ) ******************************************************************************************* ******************************** CHECKING ASSERTIONS ******************************** ******************************************************************************************* Proving termination of subgraph 0 Proving termination of subgraph 1 Checking unfeasibility... Time used: 0.003831 Checking conditional termination of SCC {l2}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000976s Ranking function: -1 - 2*main_i + 2*main_j New Graphs: Transitions: 2 + main_i, main_j -> 1 + main_j, rest remain the same}> Variables: main_i, main_j Checking conditional termination of SCC {l2}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000434s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001565s [29993 : 29995] [29993 : 29996] Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.011618s Time used: 0.01128 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.021522s Time used: 0.021517 LOG: SAT solveNonLinear - Elapsed time: 0.033139s Cost: 1; Total time: 0.032797 Quasi-ranking function: 50000 - main_i + main_j New Graphs: Transitions: 2 + main_i, main_j -> 1 + main_j, rest remain the same}> Variables: main_i, main_j Checking conditional termination of SCC {l2}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000478s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001813s [29993 : 30000] [29993 : 30001] Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.012104s Time used: 0.011635 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.022745s Time used: 0.02274 LOG: SAT solveNonLinear - Elapsed time: 0.034849s Cost: 1; Total time: 0.034375 Quasi-ranking function: 50000 - main_j New Graphs: Transitions: 2 + main_i, main_j -> 1 + main_j, rest remain the same}> Variables: main_i, main_j Checking conditional termination of SCC {l2}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000569s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.002289s [29993 : 30005] [29993 : 30006] Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.010269s Time used: 0.009758 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.022176s Time used: 0.022171 LOG: SAT solveNonLinear - Elapsed time: 0.032445s Cost: 1; Total time: 0.031929 Quasi-ranking function: 50000 - main_i New Graphs: Transitions: 2 + main_i, main_j -> 1 + main_j, rest remain the same}> Variables: main_i, main_j Checking conditional termination of SCC {l2}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000659s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.003187s [29993 : 30010] [29993 : 30011] Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.010600s Time used: 0.010112 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.027758s Time used: 0.027753 LOG: SAT solveNonLinear - Elapsed time: 0.038358s Cost: 1; Total time: 0.037865 Quasi-ranking function: 50000 + main_i - 3*main_j New Graphs: Transitions: 2 + main_i, main_j -> 1 + main_j, rest remain the same}> Variables: main_i, main_j Checking conditional termination of SCC {l2}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000735s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.003346s [29993 : 30015] [29993 : 30016] Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.011085s Time used: 0.010436 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.019038s Time used: 0.019033 LOG: SAT solveNonLinear - Elapsed time: 0.030123s Cost: 1; Total time: 0.029469 Quasi-ranking function: 50000 - main_i - main_j New Graphs: Transitions: 2 + main_i, main_j -> 1 + main_j, rest remain the same}> Variables: main_i, main_j Checking conditional termination of SCC {l2}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000826s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.003467s [29993 : 30020] [29993 : 30021] Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.011775s Time used: 0.011214 Termination failed. Trying to show unreachability... Proving unreachability of entry: LOG: CALL check - Post:1 <= 0 - Process 1 * Exit transition: * Postcondition : 1 <= 0 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001104s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.001188s Cannot prove unreachability [29993 : 30025] [29993 : 30026] Successful child: 30025 Program does NOT terminate