18.18/18.23 NO 18.18/18.23 18.18/18.23 Solver Timeout: 4 18.18/18.23 Global Timeout: 300 18.18/18.23 No parsing errors! 18.18/18.23 Init Location: 0 18.18/18.23 Transitions: 18.18/18.23 18.18/18.23 (~(1) * arg2)) /\ (arg2 > ~(1)) /\ (arg1 > 0), par{arg1 -> (~(1) * arg2), arg2 -> undef2}> 18.18/18.23 (arg1 - 1), arg2 -> undef4}> 18.18/18.23 undef5, arg2 -> undef6}> 18.18/18.23 18.18/18.23 Fresh variables: 18.18/18.23 undef2, undef4, undef5, undef6, 18.18/18.23 18.18/18.23 Undef variables: 18.18/18.23 undef2, undef4, undef5, undef6, 18.18/18.23 18.18/18.23 Abstraction variables: 18.18/18.23 18.18/18.23 Exit nodes: 18.18/18.23 18.18/18.23 Accepting locations: 18.18/18.23 18.18/18.23 Asserts: 18.18/18.23 18.18/18.23 Preprocessed LLVMGraph 18.18/18.23 Init Location: 0 18.18/18.23 Transitions: 18.18/18.23 (~(1) * undef6)) /\ (undef6 > ~(1)) /\ (undef5 > 0)> 18.18/18.23 (arg1 - 1)}> 18.18/18.23 18.18/18.23 Fresh variables: 18.18/18.23 undef2, undef4, undef5, undef6, 18.18/18.23 18.18/18.23 Undef variables: 18.18/18.23 undef2, undef4, undef5, undef6, 18.18/18.23 18.18/18.23 Abstraction variables: 18.18/18.23 18.18/18.23 Exit nodes: 18.18/18.23 18.18/18.23 Accepting locations: 18.18/18.23 18.18/18.23 Asserts: 18.18/18.23 18.18/18.23 ************************************************************* 18.18/18.23 ******************************************************************************************* 18.18/18.23 *********************** WORKING TRANSITION SYSTEM (DAG) *********************** 18.18/18.23 ******************************************************************************************* 18.18/18.23 18.18/18.23 Init Location: 0 18.18/18.23 Graph 0: 18.18/18.23 Transitions: 18.18/18.23 Variables: 18.18/18.23 18.18/18.23 Graph 1: 18.18/18.23 Transitions: 18.18/18.23 -1 + arg1, rest remain the same}> 18.18/18.23 Variables: 18.18/18.23 arg1 18.18/18.23 18.18/18.23 Precedence: 18.18/18.23 Graph 0 18.18/18.23 18.18/18.23 Graph 1 18.18/18.23 18.18/18.23 18.18/18.23 Map Locations to Subgraph: 18.18/18.23 ( 0 , 0 ) 18.18/18.23 ( 2 , 1 ) 18.18/18.23 18.18/18.23 ******************************************************************************************* 18.18/18.23 ******************************** CHECKING ASSERTIONS ******************************** 18.18/18.23 ******************************************************************************************* 18.18/18.23 18.18/18.23 Proving termination of subgraph 0 18.18/18.23 Proving termination of subgraph 1 18.18/18.23 Checking unfeasibility... 18.18/18.23 Time used: 0.001789 18.18/18.23 18.18/18.23 Checking conditional termination of SCC {l2}... 18.18/18.23 18.18/18.23 LOG: CALL solveLinear 18.18/18.23 18.18/18.23 LOG: RETURN solveLinear - Elapsed time: 0.000568s 18.18/18.23 18.18/18.23 LOG: CALL solveLinear 18.18/18.23 18.18/18.23 LOG: RETURN solveLinear - Elapsed time: 0.001138s 18.18/18.23 Trying to remove transition: -1 + arg1, rest remain the same}> 18.18/18.23 Solving with 1 template(s). 18.18/18.23 18.18/18.23 LOG: CALL solveNonLinearGetFirstSolution 18.18/18.23 18.18/18.23 LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.003886s 18.18/18.23 Time used: 0.003764 18.18/18.23 Solving with 1 template(s). 18.18/18.23 18.18/18.23 LOG: CALL solveNonLinearGetFirstSolution 18.18/18.23 18.18/18.23 LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.005181s 18.18/18.23 Time used: 0.004905 18.18/18.23 Improving Solution with cost 1 ... 18.18/18.23 18.18/18.23 LOG: CALL solveNonLinearGetNextSolution 18.18/18.23 18.18/18.23 LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.012263s 18.18/18.23 Time used: 0.012257 18.18/18.23 18.18/18.23 LOG: SAT solveNonLinear - Elapsed time: 0.017443s 18.18/18.23 Cost: 1; Total time: 0.017162 18.18/18.23 Failed at location 2: 0 <= arg1 18.18/18.23 Before Improving: 18.18/18.23 Quasi-invariant at l2: 0 <= arg1 18.18/18.23 Optimizing invariants... 18.18/18.23 18.18/18.23 LOG: CALL solveLinear 18.18/18.23 18.18/18.23 LOG: RETURN solveLinear - Elapsed time: 0.001636s 18.18/18.23 Remaining time after improvement: 0.99924 18.18/18.23 Termination implied by a set of quasi-invariant(s): 18.18/18.23 Quasi-invariant at l2: 0 <= arg1 18.18/18.23 [ Invariant Graph ] 18.18/18.23 Strengthening and disabling transitions... 18.18/18.23 18.18/18.23 LOG: CALL solverLinear in Graph for feasibility 18.18/18.23 18.18/18.23 LOG: RETURN solveLinear in Graph for feasibility 18.18/18.23 It's unfeasible. Removing transition: 18.18/18.23 -1 + arg1, rest remain the same}> 18.18/18.23 [ Termination Graph ] 18.18/18.23 Strengthening and disabling transitions... 18.18/18.23 18.18/18.23 LOG: CALL solverLinear in Graph for feasibility 18.18/18.23 18.18/18.23 LOG: RETURN solveLinear in Graph for feasibility 18.18/18.23 It's unfeasible. Removing transition: 18.18/18.23 -1 + arg1, rest remain the same}> 18.18/18.23 New Graphs: 18.18/18.23 Calling Safety with literal 0 <= arg1 and entry 18.18/18.23 18.18/18.23 LOG: CALL check - Post:0 <= arg1 - Process 1 18.18/18.23 * Exit transition: 18.18/18.23 * Postcondition : 0 <= arg1 18.18/18.23 18.18/18.23 LOG: CALL solveLinear 18.18/18.23 18.18/18.23 LOG: RETURN solveLinear - Elapsed time: 0.000418s 18.18/18.23 > Postcondition is not implied! 18.18/18.23 18.18/18.23 LOG: RETURN check - Elapsed time: 0.000527s 18.18/18.23 INVARIANTS: 18.18/18.23 2: 18.18/18.23 Quasi-INVARIANTS to narrow Graph: 18.18/18.23 2: 0 <= arg1 , 18.18/18.23 Narrowing transition: 18.18/18.23 -1 + arg1, rest remain the same}> 18.18/18.23 18.18/18.23 LOG: Narrow transition size 1 18.18/18.23 invGraph after Narrowing: 18.18/18.23 Transitions: 18.18/18.23 -1 + arg1, rest remain the same}> 18.18/18.23 Variables: 18.18/18.23 arg1 18.18/18.23 Checking conditional termination of SCC {l2}... 18.18/18.23 18.18/18.23 LOG: CALL solveLinear 18.18/18.23 18.18/18.23 LOG: RETURN solveLinear - Elapsed time: 0.000374s 18.18/18.23 18.18/18.23 LOG: CALL solveLinear 18.18/18.23 18.18/18.23 LOG: RETURN solveLinear - Elapsed time: 0.001124s 18.18/18.23 Trying to remove transition: -1 + arg1, rest remain the same}> 18.18/18.23 Solving with 1 template(s). 18.18/18.23 18.18/18.23 LOG: CALL solveNonLinearGetFirstSolution 18.18/18.23 18.18/18.23 LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.003528s 18.18/18.23 Time used: 0.003405 18.18/18.23 Solving with 1 template(s). 18.18/18.23 18.18/18.23 LOG: CALL solveNonLinearGetFirstSolution 18.18/18.23 18.18/18.23 LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.005865s 18.18/18.23 Time used: 4.00132 18.18/18.23 Solving with 2 template(s). 18.18/18.23 18.18/18.23 LOG: CALL solveNonLinearGetFirstSolution 18.18/18.23 18.18/18.23 LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.007497s 18.18/18.23 Time used: 4.00068 18.18/18.23 Solving with 3 template(s). 18.18/18.23 18.18/18.23 LOG: CALL solveNonLinearGetFirstSolution 18.18/18.23 18.18/18.23 LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 1.005983s 18.18/18.23 Time used: 1.00072 18.18/18.23 Solving with 1 template(s). 18.18/18.23 18.18/18.23 LOG: CALL solveNonLinearGetFirstSolution 18.18/18.23 18.18/18.23 LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.008585s 18.18/18.23 Time used: 0.005023 18.18/18.23 Improving Solution with cost 1 ... 18.18/18.23 18.18/18.23 LOG: CALL solveNonLinearGetNextSolution 18.18/18.23 18.18/18.23 LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.011836s 18.18/18.23 Time used: 0.011829 18.18/18.23 18.18/18.23 LOG: SAT solveNonLinear - Elapsed time: 0.020421s 18.18/18.23 Cost: 1; Total time: 0.016852 18.18/18.23 Quasi-ranking function: 50000 + arg1 18.18/18.23 New Graphs: 18.18/18.23 Transitions: 18.18/18.23 -1 + arg1, rest remain the same}> 18.18/18.23 Variables: 18.18/18.23 arg1 18.18/18.23 Checking conditional termination of SCC {l2}... 18.18/18.23 18.18/18.23 LOG: CALL solveLinear 18.18/18.23 18.18/18.23 LOG: RETURN solveLinear - Elapsed time: 0.000424s 18.18/18.23 18.18/18.23 LOG: CALL solveLinear 18.18/18.23 18.18/18.23 LOG: RETURN solveLinear - Elapsed time: 0.001251s 18.18/18.23 Trying to remove transition: -1 + arg1, rest remain the same}> 18.18/18.23 Solving with 1 template(s). 18.18/18.23 18.18/18.23 LOG: CALL solveNonLinearGetFirstSolution 18.18/18.23 18.18/18.23 LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.003740s 18.18/18.23 Time used: 0.003608 18.18/18.23 Solving with 1 template(s). 18.18/18.23 18.18/18.23 LOG: CALL solveNonLinearGetFirstSolution 18.18/18.23 18.18/18.23 LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.051697s 18.18/18.23 Time used: 4.05086 18.18/18.23 Solving with 2 template(s). 18.18/18.23 18.18/18.23 LOG: CALL solveNonLinearGetFirstSolution 18.18/18.23 18.18/18.23 LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.006365s 18.18/18.23 Time used: 4.00099 18.18/18.23 Solving with 3 template(s). 18.18/18.23 18.18/18.23 LOG: CALL solveNonLinearGetFirstSolution 18.18/18.23 18.18/18.23 LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 1.006736s 18.18/18.23 Time used: 1.00106 18.18/18.23 Solving with 1 template(s). 18.18/18.23 18.18/18.23 LOG: CALL solveNonLinearGetFirstSolution 18.18/18.23 18.18/18.23 LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.008148s 18.18/18.23 Time used: 0.004673 18.18/18.23 18.18/18.23 Proving non-termination of subgraph 1 18.18/18.23 Transitions: 18.18/18.23 -1 + arg1, rest remain the same}> 18.18/18.23 Variables: 18.18/18.23 arg1 18.18/18.23 18.18/18.23 Checking conditional non-termination of SCC {l2}... 18.18/18.23 EXIT TRANSITIONS: 18.18/18.23 18.18/18.23 18.18/18.23 Solving with 1 template(s). 18.18/18.23 18.18/18.23 LOG: CALL solveNonLinearGetFirstSolution 18.18/18.23 18.18/18.23 LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.003647s 18.18/18.23 Time used: 0.003492 18.18/18.23 Improving Solution with cost 1 ... 18.18/18.23 18.18/18.23 LOG: CALL solveNonLinearGetNextSolution 18.18/18.23 18.18/18.23 LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.004500s 18.18/18.23 Time used: 0.004495 18.18/18.23 18.18/18.23 LOG: SAT solveNonLinear - Elapsed time: 0.008147s 18.18/18.23 Cost: 1; Total time: 0.007987 18.18/18.23 Failed at location 2: 1 + arg1 <= 0 18.18/18.23 Before Improving: 18.18/18.23 Quasi-invariant at l2: 1 + arg1 <= 0 18.18/18.23 Optimizing invariants... 18.18/18.23 18.18/18.23 LOG: CALL solveLinear 18.18/18.23 18.18/18.23 LOG: RETURN solveLinear - Elapsed time: 0.001419s 18.18/18.23 Remaining time after improvement: 0.999159 18.18/18.23 Non-termination implied by a set of quasi-invariant(s): 18.18/18.23 Quasi-invariant at l2: 1 + arg1 <= 0 18.18/18.23 18.18/18.23 Strengthening and disabling EXIT transitions... 18.18/18.23 Closed exits from l2: 1 18.18/18.23 18.18/18.23 Strengthening and disabling transitions... 18.18/18.23 18.18/18.23 LOG: CALL solverLinear in Graph for feasibility 18.18/18.23 18.18/18.23 LOG: RETURN solveLinear in Graph for feasibility 18.18/18.23 Strengthening transition (result): 18.18/18.23 -1 + arg1, rest remain the same}> 18.18/18.23 18.18/18.23 Calling reachability with... 18.18/18.23 Transition: 18.18/18.23 Conditions: 1 + arg1 <= 0, 18.18/18.23 OPEN EXITS: 18.18/18.23 18.18/18.23 18.18/18.23 --- Reachability graph --- 18.18/18.23 > Graph without transitions. 18.18/18.23 18.18/18.23 Calling reachability with... 18.18/18.23 Transition: 18.18/18.23 Conditions: 1 + arg1 <= 0, 18.18/18.23 OPEN EXITS: 18.18/18.23 18.18/18.23 18.18/18.23 > Conditions are reachable! 18.18/18.23 18.18/18.23 Program does NOT terminate 18.18/18.23 /export/starexec/sandbox/solver/bin/starexec_run_termcomp2019_ITS: line 26: delete: command not found 18.18/18.23 /export/starexec/sandbox/solver/bin/starexec_run_termcomp2019_ITS: line 27: edit: command not found 18.18/18.23 EOF