YES Solver Timeout: 4 Global Timeout: 300 No parsing errors! Init Location: 0 Transitions: undef1}> undef5}> undef9}> undef14, x_5^0 -> undef15, y_6^0 -> (1 + undef15)}> undef22}> undef35, y_6^0 -> (0 + undef35)}> Fresh variables: undef1, undef5, undef9, undef14, undef15, undef22, undef35, Undef variables: undef1, undef5, undef9, undef14, undef15, undef22, undef35, Abstraction variables: Exit nodes: Accepting locations: Asserts: Preprocessed LLVMGraph Init Location: 0 Transitions: undef15, y_6^0 -> (1 + undef15)}> undef35, y_6^0 -> (0 + undef35)}> undef35, y_6^0 -> (0 + undef35)}> Fresh variables: undef1, undef5, undef9, undef14, undef15, undef22, undef35, Undef variables: undef1, undef5, undef9, undef14, undef15, undef22, undef35, Abstraction variables: Exit nodes: Accepting locations: Asserts: ************************************************************* ******************************************************************************************* *********************** WORKING TRANSITION SYSTEM (DAG) *********************** ******************************************************************************************* Init Location: 0 Graph 0: Transitions: Variables: Graph 1: Transitions: undef15, y_6^0 -> 1 + undef15, rest remain the same}> undef35, y_6^0 -> undef35, rest remain the same}> undef35, y_6^0 -> undef35, rest remain the same}> Variables: x_5^0, y_6^0 Graph 2: Transitions: Variables: Precedence: Graph 0 Graph 1 Graph 2 Map Locations to Subgraph: ( 0 , 0 ) ( 1 , 1 ) ( 2 , 2 ) ******************************************************************************************* ******************************** CHECKING ASSERTIONS ******************************** ******************************************************************************************* Proving termination of subgraph 0 Proving termination of subgraph 1 Checking unfeasibility... Time used: 0.003007 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001110s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.023837s Trying to remove transition: undef35, y_6^0 -> undef35, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.007152s Time used: 0.006802 Trying to remove transition: undef35, y_6^0 -> undef35, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.006788s Time used: 0.006351 Trying to remove transition: undef15, y_6^0 -> 1 + undef15, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.007257s Time used: 0.00683 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.011205s Time used: 0.010728 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.032775s Time used: 0.032773 LOG: SAT solveNonLinear - Elapsed time: 0.043980s Cost: 1; Total time: 0.043501 Failed at location 1: 1 + x_5^0 <= 0 Before Improving: Quasi-invariant at l1: 1 + x_5^0 <= 0 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.005103s Remaining time after improvement: 0.998211 Termination implied by a set of quasi-invariant(s): Quasi-invariant at l1: 1 + x_5^0 <= 0 [ 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: undef15, y_6^0 -> 1 + undef15, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: undef35, y_6^0 -> undef35, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: undef35, y_6^0 -> undef35, rest remain the same}> [ Termination Graph ] Strengthening and disabling transitions... > It's unfeasible. Removing transition: undef35, y_6^0 -> undef35, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: undef15, y_6^0 -> 1 + undef15, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: undef35, y_6^0 -> undef35, rest remain the same}> New Graphs: Calling Safety with literal 1 + x_5^0 <= 0 and entry LOG: CALL check - Post:1 + x_5^0 <= 0 - Process 1 * Exit transition: * Postcondition : 1 + x_5^0 <= 0 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000258s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000282s INVARIANTS: 1: Quasi-INVARIANTS to narrow Graph: 1: 1 + x_5^0 <= 0 , Narrowing transition: undef15, y_6^0 -> 1 + undef15, rest remain the same}> LOG: Narrow transition size 1 Narrowing transition: undef35, y_6^0 -> undef35, rest remain the same}> LOG: Narrow transition size 1 Narrowing transition: undef35, y_6^0 -> undef35, rest remain the same}> LOG: Narrow transition size 1 invGraph after Narrowing: Transitions: undef15, y_6^0 -> 1 + undef15, rest remain the same}> undef35, y_6^0 -> undef35, rest remain the same}> undef35, y_6^0 -> undef35, rest remain the same}> Variables: x_5^0, y_6^0 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000939s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.023290s Trying to remove transition: undef35, y_6^0 -> undef35, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.006805s Time used: 0.006378 Trying to remove transition: undef35, y_6^0 -> undef35, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.006841s Time used: 0.006365 Trying to remove transition: undef15, y_6^0 -> 1 + undef15, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.007369s Time used: 0.00689 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.010886s Time used: 0.010307 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.028449s Time used: 0.028448 LOG: SAT solveNonLinear - Elapsed time: 0.039335s Cost: 1; Total time: 0.038755 Failed at location 1: y_6^0 <= 0 Before Improving: Quasi-invariant at l1: y_6^0 <= 0 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.005044s Remaining time after improvement: 0.998295 Termination implied by a set of quasi-invariant(s): Quasi-invariant at l1: y_6^0 <= 0 [ 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: undef15, y_6^0 -> 1 + undef15, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: undef35, y_6^0 -> undef35, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: undef35, y_6^0 -> undef35, rest remain the same}> [ Termination Graph ] Strengthening and disabling transitions... LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: undef15, y_6^0 -> 1 + undef15, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: undef35, y_6^0 -> undef35, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: undef35, y_6^0 -> undef35, rest remain the same}> New Graphs: Calling Safety with literal y_6^0 <= 0 and entry LOG: CALL check - Post:y_6^0 <= 0 - Process 2 * Exit transition: * Postcondition : y_6^0 <= 0 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000289s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000315s INVARIANTS: 1: Quasi-INVARIANTS to narrow Graph: 1: y_6^0 <= 0 , Narrowing transition: undef15, y_6^0 -> 1 + undef15, rest remain the same}> LOG: Narrow transition size 1 Narrowing transition: undef35, y_6^0 -> undef35, rest remain the same}> LOG: Narrow transition size 1 Narrowing transition: undef35, y_6^0 -> undef35, rest remain the same}> LOG: Narrow transition size 1 invGraph after Narrowing: Transitions: undef15, y_6^0 -> 1 + undef15, rest remain the same}> undef35, y_6^0 -> undef35, rest remain the same}> undef35, y_6^0 -> undef35, rest remain the same}> Variables: x_5^0, y_6^0 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000952s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.023355s Trying to remove transition: undef35, y_6^0 -> undef35, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.006790s Time used: 0.00635 Trying to remove transition: undef35, y_6^0 -> undef35, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.006866s Time used: 0.00636 Trying to remove transition: undef15, y_6^0 -> 1 + undef15, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.007390s Time used: 0.006899 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.013616s Time used: 0.013003 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.029938s Time used: 0.029937 LOG: SAT solveNonLinear - Elapsed time: 0.043554s Cost: 1; Total time: 0.04294 Failed at location 1: x_5^0 <= 0 Before Improving: Quasi-invariant at l1: x_5^0 <= 0 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.005287s Remaining time after improvement: 0.998189 Termination implied by a set of quasi-invariant(s): Quasi-invariant at l1: x_5^0 <= 0 [ 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: undef15, y_6^0 -> 1 + undef15, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: undef35, y_6^0 -> undef35, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: undef35, y_6^0 -> undef35, rest remain the same}> [ Termination Graph ] Strengthening and disabling transitions... > It's unfeasible. Removing transition: undef35, y_6^0 -> undef35, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: undef15, y_6^0 -> 1 + undef15, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: undef35, y_6^0 -> undef35, rest remain the same}> New Graphs: Calling Safety with literal x_5^0 <= 0 and entry LOG: CALL check - Post:x_5^0 <= 0 - Process 3 * Exit transition: * Postcondition : x_5^0 <= 0 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000303s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000333s INVARIANTS: 1: Quasi-INVARIANTS to narrow Graph: 1: x_5^0 <= 0 , Narrowing transition: undef15, y_6^0 -> 1 + undef15, rest remain the same}> LOG: Narrow transition size 1 Narrowing transition: undef35, y_6^0 -> undef35, rest remain the same}> LOG: Narrow transition size 1 Narrowing transition: undef35, y_6^0 -> undef35, rest remain the same}> LOG: Narrow transition size 1 invGraph after Narrowing: Transitions: undef15, y_6^0 -> 1 + undef15, rest remain the same}> undef35, y_6^0 -> undef35, rest remain the same}> undef35, y_6^0 -> undef35, rest remain the same}> Variables: x_5^0, y_6^0 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000975s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.023404s Trying to remove transition: undef35, y_6^0 -> undef35, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.006821s Time used: 0.006363 Trying to remove transition: undef35, y_6^0 -> undef35, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.006846s Time used: 0.006344 Trying to remove transition: undef15, y_6^0 -> 1 + undef15, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.007381s Time used: 0.00689 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.016711s Time used: 0.016126 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.033721s Time used: 0.03372 LOG: SAT solveNonLinear - Elapsed time: 0.050433s Cost: 1; Total time: 0.049846 Failed at location 1: y_6^0 <= 1 + x_5^0 Before Improving: Quasi-invariant at l1: y_6^0 <= 1 + x_5^0 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.005447s Remaining time after improvement: 0.998043 Termination implied by a set of quasi-invariant(s): Quasi-invariant at l1: y_6^0 <= 1 + x_5^0 [ Invariant Graph ] Strengthening and disabling transitions... LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): undef15, y_6^0 -> 1 + undef15, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): undef35, y_6^0 -> undef35, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): undef35, y_6^0 -> undef35, 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): undef15, y_6^0 -> 1 + undef15, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): undef35, y_6^0 -> undef35, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): undef35, y_6^0 -> undef35, rest remain the same}> Ranking function: x_5^0 New Graphs: Calling Safety with literal y_6^0 <= 1 + x_5^0 and entry LOG: CALL check - Post:y_6^0 <= 1 + x_5^0 - Process 4 * Exit transition: * Postcondition : y_6^0 <= 1 + x_5^0 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000255s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000290s INVARIANTS: 1: Quasi-INVARIANTS to narrow Graph: 1: y_6^0 <= 1 + x_5^0 , It's unfeasible. Removing transition: undef15, y_6^0 -> 1 + undef15, rest remain the same}> It's unfeasible. Removing transition: undef35, y_6^0 -> undef35, rest remain the same}> It's unfeasible. Removing transition: undef35, y_6^0 -> undef35, rest remain the same}> invGraph after Narrowing: Transitions: Variables: x_5^0, y_6^0 Analyzing SCC {l1}... No cycles found. Proving termination of subgraph 2 Analyzing SCC {l2}... No cycles found. Program Terminates