YES Solver Timeout: 4 Global Timeout: 60 No parsing errors! Init Location: 0 Transitions: (~(1) + deltaext^0)}> (1 + deltaext^0)}> 2}> Fresh variables: Undef variables: Abstraction variables: Exit nodes: Accepting locations: Asserts: Preprocessed LLVMGraph Init Location: 0 Transitions: (~(1) + deltaext^0)}> (1 + deltaext^0)}> Fresh variables: Undef variables: Abstraction variables: Exit nodes: Accepting locations: Asserts: ************************************************************* ******************************************************************************************* *********************** WORKING TRANSITION SYSTEM (DAG) *********************** ******************************************************************************************* Init Location: 0 Graph 0: Transitions: Variables: Graph 1: Transitions: -1 + deltaext^0, rest remain the same}> 1 + deltaext^0, rest remain the same}> Variables: deltaext^0, wnt^0 Precedence: Graph 0 Graph 1 Map Locations to Subgraph: ( 0 , 0 ) ( 1 , 1 ) ******************************************************************************************* ******************************** CHECKING ASSERTIONS ******************************** ******************************************************************************************* Proving termination of subgraph 0 Proving termination of subgraph 1 Checking unfeasibility... Time used: 0.003858 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000826s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.009246s Trying to remove transition: 1 + deltaext^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.014069s Time used: 0.013866 Trying to remove transition: -1 + deltaext^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.011639s Time used: 0.011178 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.022227s Time used: 0.021746 Solving with 2 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.001260s Time used: 4.00053 Solving with 3 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.315643s Time used: 0.309918 Improving Solution with cost 2 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.690923s Time used: 0.690902 LOG: SAT solveNonLinear - Elapsed time: 1.006566s Cost: 2; Total time: 1.00082 Failed at location 1: deltaext^0 <= 1 Failed at location 1: wnt^0 <= 0 Before Improving: Quasi-invariant at l1: 0 <= wnt^0 Quasi-invariant at l1: deltaext^0 <= 1 Quasi-invariant at l1: wnt^0 <= 0 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.072057s Remaining time after improvement: 0.99681 Termination implied by a set of quasi-invariant(s): Quasi-invariant at l1: 0 <= wnt^0 Quasi-invariant at l1: deltaext^0 <= 1 Quasi-invariant at l1: wnt^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: -1 + deltaext^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): 1 + deltaext^0, 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: -1 + deltaext^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): 1 + deltaext^0, rest remain the same}> New Graphs: Transitions: 1 + deltaext^0, rest remain the same}> Variables: deltaext^0, wnt^0 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000837s Ranking function: 1 - deltaext^0 New Graphs: Calling Safety with literal deltaext^0 <= 1 and entry LOG: CALL check - Post:deltaext^0 <= 1 - Process 1 * Exit transition: * Postcondition : deltaext^0 <= 1 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000520s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000621s Calling Safety with literal wnt^0 <= 0 and entry LOG: CALL check - Post:wnt^0 <= 0 - Process 2 * Exit transition: * Postcondition : wnt^0 <= 0 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000513s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000605s INVARIANTS: 1: 0 <= wnt^0 , Quasi-INVARIANTS to narrow Graph: 1: deltaext^0 <= 1 , wnt^0 <= 0 , Narrowing transition: -1 + deltaext^0, rest remain the same}> LOG: Narrow transition size 2 Narrowing transition: 1 + deltaext^0, rest remain the same}> LOG: Narrow transition size 2 invGraph after Narrowing: Transitions: -1 + deltaext^0, rest remain the same}> 1 + deltaext^0, rest remain the same}> 1 + deltaext^0, rest remain the same}> Variables: deltaext^0, wnt^0 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001354s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.024132s Trying to remove transition: 1 + deltaext^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.015154s Time used: 0.014623 Trying to remove transition: 1 + deltaext^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.013981s Time used: 0.013132 Trying to remove transition: -1 + deltaext^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.015718s Time used: 0.014986 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.044366s Time used: 0.043428 Improving Solution with cost 2 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.109618s Time used: 0.109611 LOG: SAT solveNonLinear - Elapsed time: 0.153984s Cost: 2; Total time: 0.153039 Failed at location 1: wnt^0 <= 1 Failed at location 1: wnt^0 <= 1 Before Improving: Quasi-invariant at l1: wnt^0 <= 1 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.011520s Quasi-invariant improved LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.003774s Remaining time after improvement: 0.991557 Termination implied by a set of quasi-invariant(s): Quasi-invariant at l1: wnt^0 <= 2 [ Invariant Graph ] Strengthening and disabling transitions... LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): -1 + deltaext^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): 1 + deltaext^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: 1 + deltaext^0, 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 + deltaext^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): 1 + deltaext^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: 1 + deltaext^0, rest remain the same}> New Graphs: Transitions: -1 + deltaext^0, rest remain the same}> 1 + deltaext^0, rest remain the same}> Variables: deltaext^0, wnt^0 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001207s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.015276s Trying to remove transition: 1 + deltaext^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.011379s Time used: 0.011157 Trying to remove transition: -1 + deltaext^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.023964s Time used: 0.023293 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.032310s Time used: 0.031489 Improving Solution with cost 2 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.066050s Time used: 0.066044 LOG: SAT solveNonLinear - Elapsed time: 0.098360s Cost: 2; Total time: 0.097533 Failed at location 1: wnt^0 <= 0 Failed at location 1: wnt^0 <= 0 Before Improving: Quasi-invariant at l1: wnt^0 <= 0 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.006631s Remaining time after improvement: 0.997122 Termination implied by a set of quasi-invariant(s): Quasi-invariant at l1: wnt^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): -1 + deltaext^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: 1 + deltaext^0, 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 + deltaext^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: 1 + deltaext^0, rest remain the same}> New Graphs: Transitions: -1 + deltaext^0, rest remain the same}> Variables: deltaext^0, wnt^0 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001035s Ranking function: -2 + deltaext^0 New Graphs: Calling Safety with literal wnt^0 <= 2 and entry LOG: CALL check - Post:wnt^0 <= 2 - Process 3 * Exit transition: * Postcondition : wnt^0 <= 2 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000696s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000792s Calling Safety with literal wnt^0 <= 2 and entry LOG: CALL check - Post:wnt^0 <= 2 - Process 4 * Exit transition: * Postcondition : wnt^0 <= 2 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000700s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000802s INVARIANTS: 1: Quasi-INVARIANTS to narrow Graph: 1: wnt^0 <= 2 , INVARIANTS: 1: Quasi-INVARIANTS to narrow Graph: 1: wnt^0 <= 0 , Narrowing transition: -1 + deltaext^0, rest remain the same}> LOG: Narrow transition size 2 Narrowing transition: 1 + deltaext^0, rest remain the same}> LOG: Narrow transition size 2 Narrowing transition: 1 + deltaext^0, rest remain the same}> LOG: Narrow transition size 2 invGraph after Narrowing: Transitions: -1 + deltaext^0, rest remain the same}> 1 + deltaext^0, rest remain the same}> 1 + deltaext^0, rest remain the same}> Variables: deltaext^0, wnt^0 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001552s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.043579s Trying to remove transition: 1 + deltaext^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.017223s Time used: 0.016671 Trying to remove transition: 1 + deltaext^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.029218s Time used: 0.028418 Trying to remove transition: -1 + deltaext^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.018097s Time used: 0.017141 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.045182s Time used: 0.044222 Improving Solution with cost 2 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.092692s Time used: 0.092658 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.193289s Time used: 0.19328 LOG: SAT solveNonLinear - Elapsed time: 0.331163s Cost: 1; Total time: 0.33016 Failed at location 1: 2 <= deltaext^0 Before Improving: Quasi-invariant at l1: 2 <= deltaext^0 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.016713s Remaining time after improvement: 0.996716 Termination implied by a set of quasi-invariant(s): Quasi-invariant at l1: 2 <= deltaext^0 [ Invariant Graph ] Strengthening and disabling transitions... LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): -1 + deltaext^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: 1 + deltaext^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): 1 + deltaext^0, rest remain the same}> [ Termination Graph ] Strengthening and disabling transitions... > It's unfeasible. Removing transition: 1 + deltaext^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): -1 + deltaext^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): 1 + deltaext^0, rest remain the same}> New Graphs: Transitions: -1 + deltaext^0, rest remain the same}> 1 + deltaext^0, rest remain the same}> Variables: deltaext^0, wnt^0 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001200s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.024965s Trying to remove transition: 1 + deltaext^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.013124s Time used: 0.012913 Trying to remove transition: -1 + deltaext^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.013462s Time used: 0.012833 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.026199s Time used: 0.025465 Improving Solution with cost 2 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.088032s Time used: 0.088025 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.105236s Time used: 0.105228 LOG: SAT solveNonLinear - Elapsed time: 0.219467s Cost: 1; Total time: 0.218718 Failed at location 1: deltaext^0 + wnt^0 <= 4 Before Improving: Quasi-invariant at l1: deltaext^0 + wnt^0 <= 4 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.009495s Remaining time after improvement: 0.997464 Termination implied by a set of quasi-invariant(s): Quasi-invariant at l1: deltaext^0 + wnt^0 <= 4 [ Invariant Graph ] Strengthening and disabling transitions... LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): -1 + deltaext^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: 1 + deltaext^0, rest remain the same}> [ Termination Graph ] Strengthening and disabling transitions... > It's unfeasible. Removing transition: 1 + deltaext^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): -1 + deltaext^0, rest remain the same}> New Graphs: Transitions: -1 + deltaext^0, rest remain the same}> Variables: deltaext^0, wnt^0 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001292s Ranking function: -2 + deltaext^0 New Graphs: Calling Safety with literal 2 <= deltaext^0 and entry LOG: CALL check - Post:2 <= deltaext^0 - Process 5 * Exit transition: * Postcondition : 2 <= deltaext^0 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000809s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000925s INVARIANTS: 1: Quasi-INVARIANTS to narrow Graph: 1: 2 <= deltaext^0 , Calling Safety with literal deltaext^0 + wnt^0 <= 4 and entry LOG: CALL check - Post:deltaext^0 + wnt^0 <= 4 - Process 6 * Exit transition: * Postcondition : deltaext^0 + wnt^0 <= 4 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000809s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000911s INVARIANTS: 1: Quasi-INVARIANTS to narrow Graph: 1: deltaext^0 + wnt^0 <= 4 , Narrowing transition: -1 + deltaext^0, rest remain the same}> LOG: Narrow transition size 2 Narrowing transition: 1 + deltaext^0, rest remain the same}> LOG: Narrow transition size 2 Narrowing transition: 1 + deltaext^0, rest remain the same}> LOG: Narrow transition size 2 invGraph after Narrowing: Transitions: -1 + deltaext^0, rest remain the same}> 1 + deltaext^0, rest remain the same}> 1 + deltaext^0, rest remain the same}> Variables: deltaext^0, wnt^0 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001717s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.035207s Trying to remove transition: 1 + deltaext^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.019671s Time used: 0.019057 Trying to remove transition: 1 + deltaext^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.034032s Time used: 0.033124 Trying to remove transition: -1 + deltaext^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.019413s Time used: 0.018375 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.050481s Time used: 0.049354 Improving Solution with cost 2 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.094650s Time used: 0.094643 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.211513s Time used: 0.211498 LOG: SAT solveNonLinear - Elapsed time: 0.356644s Cost: 1; Total time: 0.355495 Failed at location 1: 2 <= deltaext^0 Before Improving: Quasi-invariant at l1: 2 <= deltaext^0 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.018566s Remaining time after improvement: 0.994878 Termination implied by a set of quasi-invariant(s): Quasi-invariant at l1: 2 <= deltaext^0 [ Invariant Graph ] Strengthening and disabling transitions... LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): -1 + deltaext^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: 1 + deltaext^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): 1 + deltaext^0, 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 + deltaext^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: 1 + deltaext^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): 1 + deltaext^0, rest remain the same}> New Graphs: Transitions: -1 + deltaext^0, rest remain the same}> 1 + deltaext^0, rest remain the same}> Variables: deltaext^0, wnt^0 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001422s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.016188s Trying to remove transition: 1 + deltaext^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.013844s Time used: 0.013613 Trying to remove transition: -1 + deltaext^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.014718s Time used: 0.014072 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.067607s Time used: 0.066824 Improving Solution with cost 2 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.090331s Time used: 0.090324 LOG: SAT solveNonLinear - Elapsed time: 0.157938s Cost: 2; Total time: 0.157148 Failed at location 1: wnt^0 <= 2 Failed at location 1: wnt^0 <= 2 Before Improving: Quasi-invariant at l1: wnt^0 <= 2 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.007331s Remaining time after improvement: 0.996768 Termination implied by a set of quasi-invariant(s): Quasi-invariant at l1: wnt^0 <= 2 [ Invariant Graph ] Strengthening and disabling transitions... LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): -1 + deltaext^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: 1 + deltaext^0, rest remain the same}> [ Termination Graph ] Strengthening and disabling transitions... > It's unfeasible. Removing transition: 1 + deltaext^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): -1 + deltaext^0, rest remain the same}> Ranking function: deltaext^0 + wnt^0 New Graphs: INVARIANTS: 1: Quasi-INVARIANTS to narrow Graph: 1: 2 <= deltaext^0 , Calling Safety with literal wnt^0 <= 2 and entry LOG: CALL check - Post:wnt^0 <= 2 - Process 7 * Exit transition: * Postcondition : wnt^0 <= 2 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000917s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.001024s INVARIANTS: 1: Quasi-INVARIANTS to narrow Graph: 1: wnt^0 <= 2 , Narrowing transition: -1 + deltaext^0, rest remain the same}> LOG: Narrow transition size 2 Narrowing transition: 1 + deltaext^0, rest remain the same}> LOG: Narrow transition size 2 Narrowing transition: 1 + deltaext^0, rest remain the same}> LOG: Narrow transition size 2 invGraph after Narrowing: Transitions: -1 + deltaext^0, rest remain the same}> 1 + deltaext^0, rest remain the same}> 1 + deltaext^0, rest remain the same}> Variables: deltaext^0, wnt^0 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001876s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.030751s Trying to remove transition: 1 + deltaext^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.016700s Time used: 0.016064 Trying to remove transition: 1 + deltaext^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.033625s Time used: 0.032728 Trying to remove transition: -1 + deltaext^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.017966s Time used: 0.016925 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.049093s Time used: 0.047999 Improving Solution with cost 2 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.117029s Time used: 0.117022 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.204315s Time used: 0.204306 LOG: SAT solveNonLinear - Elapsed time: 0.370438s Cost: 1; Total time: 0.369327 Failed at location 1: 2 <= deltaext^0 Before Improving: Quasi-invariant at l1: 2 <= deltaext^0 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.017585s Remaining time after improvement: 0.995813 Termination implied by a set of quasi-invariant(s): Quasi-invariant at l1: 2 <= deltaext^0 [ Invariant Graph ] Strengthening and disabling transitions... LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): -1 + deltaext^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: 1 + deltaext^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): 1 + deltaext^0, rest remain the same}> [ Termination Graph ] Strengthening and disabling transitions... > It's unfeasible. Removing transition: 1 + deltaext^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): -1 + deltaext^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): 1 + deltaext^0, rest remain the same}> New Graphs: Transitions: -1 + deltaext^0, rest remain the same}> 1 + deltaext^0, rest remain the same}> Variables: deltaext^0, wnt^0 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001441s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.013116s Trying to remove transition: 1 + deltaext^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.013222s Time used: 0.012989 Trying to remove transition: -1 + deltaext^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.015151s Time used: 0.014494 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.119090s Time used: 0.118346 Solving with 2 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.219525s Time used: 0.218007 LOG: SAT solveNonLinear - Elapsed time: 0.219525s Cost: 0; Total time: 0.218007 Termination implied by a set of invariant(s): Invariant at l1: wnt^0 <= 3 Invariant at l1: deltaext^0 <= wnt^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: -1 + deltaext^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): 1 + deltaext^0, rest remain the same}> [ Termination Graph ] Strengthening and disabling transitions... > It's unfeasible. Removing transition: -1 + deltaext^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): 1 + deltaext^0, rest remain the same}> Ranking function: -deltaext^0 + wnt^0 New Graphs: INVARIANTS: 1: Quasi-INVARIANTS to narrow Graph: 1: 2 <= deltaext^0 , INVARIANTS: 1: deltaext^0 <= wnt^0 , wnt^0 <= 3 , Quasi-INVARIANTS to narrow Graph: 1: It's unfeasible. Removing transition: -1 + deltaext^0, rest remain the same}> Narrowing transition: 1 + deltaext^0, rest remain the same}> LOG: Narrow transition size 1 It's unfeasible. Removing transition: 1 + deltaext^0, rest remain the same}> invGraph after Narrowing: Transitions: 1 + deltaext^0, rest remain the same}> Variables: deltaext^0, wnt^0 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001595s Ranking function: 1 - deltaext^0 New Graphs: Program Terminates