NO Solver Timeout: 4 Global Timeout: 60 No parsing errors! Init Location: 0 Transitions: 0, __rho_1_^0 -> undef33, dobreak^0 -> (0 + undef33)}> 0, __rho_1_^0 -> undef39, n^0 -> (0 + undef39)}> 0, R^0 -> 0, __rho_1_^0 -> undef50, dobreak^0 -> (0 + undef50)}> Fresh variables: undef33, undef36, undef39, undef42, undef50, Undef variables: undef33, undef36, undef39, undef42, undef50, Abstraction variables: Exit nodes: Accepting locations: Asserts: Preprocessed LLVMGraph Init Location: 0 Transitions: (0 + undef39)}> (0 + undef39)}> Fresh variables: undef33, undef36, undef39, undef42, undef50, Undef variables: undef33, undef36, undef39, undef42, undef50, Abstraction variables: Exit nodes: Accepting locations: Asserts: ************************************************************* ******************************************************************************************* *********************** WORKING TRANSITION SYSTEM (DAG) *********************** ******************************************************************************************* Init Location: 0 Graph 0: Transitions: Variables: Graph 1: Transitions: undef39, rest remain the same}> Variables: n^0 Graph 2: Transitions: Variables: Precedence: Graph 0 Graph 1 undef39, rest remain the same}> Graph 2 Map Locations to Subgraph: ( 0 , 0 ) ( 3 , 1 ) ( 7 , 2 ) ******************************************************************************************* ******************************** CHECKING ASSERTIONS ******************************** ******************************************************************************************* Proving termination of subgraph 0 Proving termination of subgraph 1 Checking unfeasibility... Time used: 0.002659 Checking conditional termination of SCC {l3}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000636s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001944s Trying to remove transition: undef39, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.004245s Time used: 0.0041 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.007388s Time used: 0.007013 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.017472s Time used: 0.017466 LOG: SAT solveNonLinear - Elapsed time: 0.024860s Cost: 1; Total time: 0.024479 Failed at location 3: 1 <= n^0 Before Improving: Quasi-invariant at l3: 1 <= n^0 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.003066s Remaining time after improvement: 0.998547 Termination implied by a set of quasi-invariant(s): Quasi-invariant at l3: 1 <= n^0 [ Invariant Graph ] Strengthening and disabling transitions... LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: undef39, 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): LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: undef39, rest remain the same}> New Graphs: Transitions: Variables: n^0 > No variable changes in termination graph. Checking conditional unfeasibility... Calling Safety with literal n^0 <= 0 and entry LOG: CALL check - Post:n^0 <= 0 - Process 1 * Exit transition: * Postcondition : n^0 <= 0 Quasi-invariants: Location 3: n^0 <= 0 ; undef39 <= 0 ; Postcondition: n^0 <= 0 LOG: CALL check - Post:n^0 <= 0 - Process 2 * Exit transition: undef39, rest remain the same}> * Postcondition : n^0 <= 0 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000356s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000439s Postcondition: undef39 <= 0 LOG: CALL check - Post:undef39 <= 0 - Process 3 * Exit transition: undef39, rest remain the same}> * Postcondition : undef39 <= 0 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000363s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000442s LOG: NarrowEntry size 2 Narrowing transition: LOG: Narrow transition size 2 Narrowing transition: undef39, rest remain the same}> LOG: Narrow transition size 2 ENTRIES: undef39, rest remain the same}> END ENTRIES: GRAPH: undef39, rest remain the same}> END GRAPH: EXIT: POST: n^0 <= 0 LOG: Try proving POST Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.004175s Time used: 0.003998 Improving Solution with cost 50 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.008477s Time used: 0.008472 LOG: SAT solveNonLinear - Elapsed time: 0.012651s Cost: 50; Total time: 0.01247 Some transition disabled by a set of invariant(s): Invariant at l3: 1 <= n^0 Strengthening and disabling transitions... > It's unfeasible. Removing transition: undef39, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.004012s Time used: 0.003912 Solving with 2 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.000919s Time used: 4.00055 Solving with 3 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 1.021173s Time used: 1.00044 LOG: Postcondition is not implied - no solution > Postcondition is not implied! LOG: RETURN check - Elapsed time: 5.048948s Proving non-termination of subgraph 1 Transitions: undef39, rest remain the same}> Variables: n^0 Checking conditional non-termination of SCC {l3}... > No exit transition to close. Calling reachability with... Transition: Conditions: OPEN EXITS: --- Reachability graph --- > Graph without transitions. Calling reachability with... Transition: undef39, rest remain the same}> Conditions: OPEN EXITS: undef39, rest remain the same}> > Conditions are reachable! Program does NOT terminate