NO Solver Timeout: 4 Global Timeout: 300 No parsing errors! Init Location: 0 Transitions: undef5}> undef10}> undef15}> undef20}> Fresh variables: undef5, undef10, undef15, undef20, Undef variables: undef5, undef10, undef15, undef20, Abstraction variables: Exit nodes: Accepting locations: Asserts: Preprocessed LLVMGraph Init Location: 0 Transitions: undef15}> undef10}> undef10}> Fresh variables: undef5, undef10, undef15, undef20, Undef variables: undef5, undef10, undef15, undef20, Abstraction variables: Exit nodes: Accepting locations: Asserts: ************************************************************* ******************************************************************************************* *********************** WORKING TRANSITION SYSTEM (DAG) *********************** ******************************************************************************************* Init Location: 0 Graph 0: Transitions: Variables: Graph 1: Transitions: undef10, rest remain the same}> Variables: __const_100^0, __const_300^0, __const_400^0, x^0 Precedence: Graph 0 Graph 1 undef15, rest remain the same}> undef10, rest remain the same}> Map Locations to Subgraph: ( 0 , 0 ) ( 1 , 1 ) ******************************************************************************************* ******************************** CHECKING ASSERTIONS ******************************** ******************************************************************************************* Proving termination of subgraph 0 Proving termination of subgraph 1 Checking unfeasibility... Time used: 0.00177 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000462s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001735s Trying to remove transition: undef10, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.004287s Time used: 0.004144 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.006064s Time used: 0.00569 Improving Solution with cost 2 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.008199s Time used: 0.008197 LOG: SAT solveNonLinear - Elapsed time: 0.014263s Cost: 2; Total time: 0.013887 Failed at location 1: __const_300^0 + x^0 <= __const_100^0 Failed at location 1: __const_300^0 + x^0 <= __const_100^0 Before Improving: Quasi-invariant at l1: __const_300^0 + x^0 <= __const_100^0 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001667s Remaining time after improvement: 0.999214 Termination implied by a set of quasi-invariant(s): Quasi-invariant at l1: __const_300^0 + x^0 <= __const_100^0 [ 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: undef10, rest remain the same}> [ Termination Graph ] Strengthening and disabling transitions... > It's unfeasible. Removing transition: undef10, rest remain the same}> New Graphs: Calling Safety with literal __const_300^0 + x^0 <= __const_100^0 and entry undef15, rest remain the same}> LOG: CALL check - Post:__const_300^0 + x^0 <= __const_100^0 - Process 1 * Exit transition: undef15, rest remain the same}> * Postcondition : __const_300^0 + x^0 <= __const_100^0 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000261s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000305s Calling Safety with literal __const_300^0 + x^0 <= __const_100^0 and entry undef10, rest remain the same}> LOG: CALL check - Post:__const_300^0 + x^0 <= __const_100^0 - Process 2 * Exit transition: undef10, rest remain the same}> * Postcondition : __const_300^0 + x^0 <= __const_100^0 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000278s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000330s INVARIANTS: 1: Quasi-INVARIANTS to narrow Graph: 1: __const_300^0 + x^0 <= __const_100^0 , Narrowing transition: undef10, rest remain the same}> LOG: Narrow transition size 1 invGraph after Narrowing: Transitions: undef10, rest remain the same}> Variables: __const_100^0, __const_300^0, __const_400^0, x^0 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000420s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001691s Trying to remove transition: undef10, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.003462s Time used: 0.003313 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.006962s Time used: 0.006576 Improving Solution with cost 2 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.006080s Time used: 0.006079 LOG: SAT solveNonLinear - Elapsed time: 0.013042s Cost: 2; Total time: 0.012655 Failed at location 1: 1 + __const_300^0 + __const_400^0 <= 0 Failed at location 1: 1 + __const_300^0 + __const_400^0 <= 0 Before Improving: Quasi-invariant at l1: 1 + __const_300^0 + __const_400^0 <= 0 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001756s Remaining time after improvement: 0.999099 Termination implied by a set of quasi-invariant(s): Quasi-invariant at l1: 1 + __const_300^0 + __const_400^0 <= 0 [ Invariant Graph ] Strengthening and disabling transitions... LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): undef10, 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): undef10, rest remain the same}> Ranking function: -__const_100^0 + __const_300^0 + x^0 New Graphs: Calling Safety with literal 1 + __const_300^0 + __const_400^0 <= 0 and entry undef15, rest remain the same}> LOG: CALL check - Post:1 + __const_300^0 + __const_400^0 <= 0 - Process 3 * Exit transition: undef15, rest remain the same}> * Postcondition : 1 + __const_300^0 + __const_400^0 <= 0 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000244s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000287s Calling Safety with literal 1 + __const_300^0 + __const_400^0 <= 0 and entry undef10, rest remain the same}> LOG: CALL check - Post:1 + __const_300^0 + __const_400^0 <= 0 - Process 4 * Exit transition: undef10, rest remain the same}> * Postcondition : 1 + __const_300^0 + __const_400^0 <= 0 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000263s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000316s INVARIANTS: 1: Quasi-INVARIANTS to narrow Graph: 1: 1 + __const_300^0 + __const_400^0 <= 0 , Narrowing transition: undef10, rest remain the same}> LOG: Narrow transition size 1 invGraph after Narrowing: Transitions: undef10, rest remain the same}> Variables: __const_100^0, __const_300^0, __const_400^0, x^0 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000446s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001782s Trying to remove transition: undef10, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.003823s Time used: 0.003662 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.008635s Time used: 0.008309 Solving with 2 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.000930s Time used: 4.00023 Solving with 3 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 1.001660s Time used: 1.00009 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.010210s Time used: 0.004692 Proving non-termination of subgraph 1 Transitions: undef10, rest remain the same}> Variables: __const_100^0, __const_300^0, __const_400^0, x^0 Checking that every undef value has an assignment... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000661s Checking conditional non-termination of SCC {l1}... > No assignment for some undef value. > Checking if the negation of the conditions of every pending exit is quasi-invariant... YES Calling reachability with... Transition: Conditions: 1 + __const_100^0 <= __const_300^0 + x^0, 0 <= __const_300^0 + __const_400^0, Transition: Conditions: 1 + __const_100^0 <= __const_300^0 + x^0, 0 <= __const_300^0 + __const_400^0, OPEN EXITS: (condsUp: 0 <= __const_300^0 + __const_400^0) (condsUp: 0 <= __const_300^0 + __const_400^0) --- Reachability graph --- > Graph without transitions. Calling reachability with... Transition: undef15, rest remain the same}> Conditions: 1 + __const_100^0 <= __const_300^0 + x^0, 0 <= __const_300^0 + __const_400^0, Transition: undef10, rest remain the same}> Conditions: 1 + __const_100^0 <= __const_300^0 + x^0, 0 <= __const_300^0 + __const_400^0, Transition: undef15, rest remain the same}> Conditions: 1 + __const_100^0 <= __const_300^0 + x^0, 0 <= __const_300^0 + __const_400^0, Transition: undef10, rest remain the same}> Conditions: 1 + __const_100^0 <= __const_300^0 + x^0, 0 <= __const_300^0 + __const_400^0, OPEN EXITS: undef15, rest remain the same}> undef10, rest remain the same}> undef15, rest remain the same}> undef10, rest remain the same}> > Conditions are reachable! Program does NOT terminate