0.00/0.11 YES 0.00/0.11 0.00/0.11 Solver Timeout: 4 0.00/0.11 Global Timeout: 300 0.00/0.11 Maximum number of concurrent processes: 900 0.00/0.11 ******************************************************************************************* 0.00/0.11 *********************** UNPROCESSED TRANSITION SYSTEMS PER FUNCTION *********************** 0.00/0.11 ******************************************************************************************* 0.00/0.11 0.00/0.11 0.00/0.11 List of LLVMGraphs + assumeNodes + staticAssertNodes [1] : 0.00/0.11 0.00/0.11 +++++++++++++++++++++++++++++++ main +++++++++++++++++++++++++++++++ 0.00/0.11 + + 0.00/0.11 Init Location: 0 0.00/0.11 Transitions: 0.00/0.11 0, main_x -> ¿functionCall(__VERIFIER_nondet_int), main_y -> ¿functionCall(__VERIFIER_nondet_int)}> 0.00/0.11 0.00/0.11 0))> 0.00/0.11 0)> 0.00/0.11 (main_x - (2 * main_y)), main_y -> (main_y + 1)}> 0.00/0.11 0.00/0.11 0}> 0.00/0.11 0.00/0.11 Fresh variables: 0.00/0.11 0.00/0.11 Undef variables: 0.00/0.11 0.00/0.11 Abstraction variables: 0.00/0.11 0.00/0.11 Exit nodes: 0.00/0.11 0.00/0.11 Accepting locations: 0.00/0.11 0.00/0.11 Asserts: 0.00/0.11 0.00/0.11 + Assume Nodes [0]: ++++++++++++++++++++++++++++++++++++++++++++++++ 0.00/0.11 0.00/0.11 + Static Assert Nodes [0]: +++++++++++++++++++++++++++++++++++++++++ 0.00/0.11 0.00/0.11 + After preprocess (paralelization): ++++++++++++++++++++++++++++++ 0.00/0.11 0.00/0.11 Init Location: 0 0.00/0.11 Transitions: 0.00/0.11 0}> 0.00/0.11 ¿functionCall(__VERIFIER_nondet_int)}> 0.00/0.11 varCall_1}> 0.00/0.11 ¿functionCall(__VERIFIER_nondet_int)}> 0.00/0.11 varCall_2}> 0.00/0.11 0.00/0.11 0)> 0.00/0.11 0))> 0.00/0.11 (main_x - (2 * main_y)), main_y -> (main_y + 1)}> 0.00/0.11 0.00/0.11 0}> 0.00/0.11 0.00/0.11 Fresh variables: 0.00/0.11 0.00/0.11 Undef variables: 0.00/0.11 0.00/0.11 Abstraction variables: 0.00/0.11 0.00/0.11 Exit nodes: 0.00/0.11 6, 0.00/0.11 Accepting locations: 0.00/0.11 0.00/0.11 Asserts: 0.00/0.11 0.00/0.11 + + 0.00/0.11 +++++++++++++++++++++++++++++++ main +++++++++++++++++++++++++++++++ 0.00/0.11 0.00/0.11 0.00/0.11 Function Return and Parameters Information [2 functions]: 0.00/0.11 function name: __VERIFIER_nondet_int [1 return + 0 parameters] demangled: __VERIFIER_nondet_int 0.00/0.11 __VERIFIER_nondet_int__func_return_ [function result] : int 0.00/0.11 function name: main [1 return + 0 parameters] demangled: main 0.00/0.11 main__func_return_ [function result] : int 0.00/0.11 0.00/0.11 0.00/0.11 AST Ident Scanner Information [4 idents]: 0.00/0.11 __VERIFIER_nondet_int | function | [integer, ()] | | 0.00/0.11 main | function | [integer, ()] | 0.00/0.11 x | local variable | integer | | 0.00/0.11 y | local variable | integer | | 0.00/0.11 0.00/0.11 Main function: main 0.00/0.11 Preprocessed LLVMGraph 0.00/0.11 Init Location: 0 0.00/0.11 Transitions: 0.00/0.11 0.00/0.11 0), par{main_x -> (main_x - (2 * main_y)), main_y -> (main_y + 1)}> 0.00/0.11 0))> 0.00/0.11 0.00/0.11 Fresh variables: 0.00/0.11 undef3, undef4, 0.00/0.11 0.00/0.11 Undef variables: 0.00/0.11 undef3, undef4, 0.00/0.11 0.00/0.11 Abstraction variables: 0.00/0.11 0.00/0.11 Exit nodes: 0.00/0.11 6, 0.00/0.11 Accepting locations: 0.00/0.11 0.00/0.11 Asserts: 0.00/0.11 0.00/0.11 ************************************************************* 0.00/0.11 ******************************************************************************************* 0.00/0.11 *********************** WORKING TRANSITION SYSTEM (DAG) *********************** 0.00/0.11 ******************************************************************************************* 0.00/0.11 0.00/0.11 Init Location: 0 0.00/0.11 Graph 0: 0.00/0.11 Transitions: 0.00/0.11 Variables: 0.00/0.11 0.00/0.11 Graph 1: 0.00/0.11 Transitions: 0.00/0.11 main_x - 2*main_y, main_y -> 1 + main_y, rest remain the same}> 0.00/0.11 Variables: 0.00/0.11 main_x, main_y 0.00/0.11 0.00/0.11 Graph 2: 0.00/0.11 Transitions: 0.00/0.11 Variables: 0.00/0.11 0.00/0.11 Precedence: 0.00/0.11 Graph 0 0.00/0.11 0.00/0.11 Graph 1 0.00/0.11 0.00/0.11 0.00/0.11 Graph 2 0.00/0.11 0.00/0.11 0.00/0.11 Map Locations to Subgraph: 0.00/0.11 ( 0 , 0 ) 0.00/0.11 ( 2 , 1 ) 0.00/0.11 ( 6 , 2 ) 0.00/0.11 0.00/0.11 ******************************************************************************************* 0.00/0.11 ******************************** CHECKING ASSERTIONS ******************************** 0.00/0.11 ******************************************************************************************* 0.00/0.11 0.00/0.11 Proving termination of subgraph 0 0.00/0.11 Proving termination of subgraph 1 0.00/0.11 Checking unfeasibility... 0.00/0.11 Time used: 0.002117 0.00/0.11 0.00/0.11 Checking conditional termination of SCC {l2}... 0.00/0.11 0.00/0.11 LOG: CALL solveLinear 0.00/0.11 0.00/0.11 LOG: RETURN solveLinear - Elapsed time: 0.000732s 0.00/0.11 0.00/0.11 LOG: CALL solveLinear 0.00/0.11 0.00/0.11 LOG: RETURN solveLinear - Elapsed time: 0.001633s 0.00/0.11 [18472 : 18474] 0.00/0.11 [18472 : 18475] 0.00/0.11 Successful child: 18474 0.00/0.11 [ Invariant Graph ] 0.00/0.11 Strengthening and disabling transitions... 0.00/0.11 0.00/0.11 LOG: CALL solverLinear in Graph for feasibility 0.00/0.11 0.00/0.11 LOG: RETURN solveLinear in Graph for feasibility 0.00/0.11 It's unfeasible. Removing transition: 0.00/0.11 main_x - 2*main_y, main_y -> 1 + main_y, rest remain the same}> 0.00/0.11 [ Termination Graph ] 0.00/0.11 Strengthening and disabling transitions... 0.00/0.11 0.00/0.11 LOG: CALL solverLinear in Graph for feasibility 0.00/0.11 0.00/0.11 LOG: RETURN solveLinear in Graph for feasibility 0.00/0.11 It's unfeasible. Removing transition: 0.00/0.11 main_x - 2*main_y, main_y -> 1 + main_y, rest remain the same}> 0.00/0.11 New Graphs: 0.00/0.11 0.00/0.11 LOG: CALL check - Post:main_x <= 0 - Process 1 0.00/0.11 * Exit transition: 0.00/0.11 * Postcondition : main_x <= 0 0.00/0.11 0.00/0.11 LOG: CALL solveLinear 0.00/0.11 0.00/0.11 LOG: RETURN solveLinear - Elapsed time: 0.000461s 0.00/0.11 > Postcondition is not implied! 0.00/0.11 0.00/0.11 LOG: RETURN check - Elapsed time: 0.000552s 0.00/0.11 INVARIANTS: 0.00/0.11 2: 0.00/0.11 Quasi-INVARIANTS to narrow Graph: 0.00/0.11 2: main_x <= 0 , 0.00/0.11 Narrowing transition: 0.00/0.11 main_x - 2*main_y, main_y -> 1 + main_y, rest remain the same}> 0.00/0.11 0.00/0.11 LOG: Narrow transition size 1 0.00/0.11 invGraph after Narrowing: 0.00/0.11 Transitions: 0.00/0.11 main_x - 2*main_y, main_y -> 1 + main_y, rest remain the same}> 0.00/0.11 Variables: 0.00/0.11 main_x, main_y 0.00/0.11 Checking conditional termination of SCC {l2}... 0.00/0.11 0.00/0.11 LOG: CALL solveLinear 0.00/0.11 0.00/0.11 LOG: RETURN solveLinear - Elapsed time: 0.000696s 0.00/0.11 0.00/0.11 LOG: CALL solveLinear 0.00/0.11 0.00/0.11 LOG: RETURN solveLinear - Elapsed time: 0.001763s 0.00/0.11 [18472 : 18479] 0.00/0.11 [18472 : 18480] 0.00/0.11 Successful child: 18479 0.00/0.11 [ Invariant Graph ] 0.00/0.11 Strengthening and disabling transitions... 0.00/0.11 0.00/0.11 LOG: CALL solverLinear in Graph for feasibility 0.00/0.11 0.00/0.11 LOG: RETURN solveLinear in Graph for feasibility 0.00/0.11 Strengthening transition (result): 0.00/0.11 main_x - 2*main_y, main_y -> 1 + main_y, rest remain the same}> 0.00/0.11 [ Termination Graph ] 0.00/0.11 Strengthening and disabling transitions... 0.00/0.11 0.00/0.11 LOG: CALL solverLinear in Graph for feasibility 0.00/0.11 0.00/0.11 LOG: RETURN solveLinear in Graph for feasibility 0.00/0.11 Strengthening transition (result): 0.00/0.11 main_x - 2*main_y, main_y -> 1 + main_y, rest remain the same}> 0.00/0.11 Ranking function: main_x 0.00/0.11 New Graphs: 0.00/0.11 0.00/0.11 LOG: CALL check - Post:1 <= main_y - Process 2 0.00/0.11 * Exit transition: 0.00/0.11 * Postcondition : 1 <= main_y 0.00/0.11 0.00/0.11 LOG: CALL solveLinear 0.00/0.11 0.00/0.11 LOG: RETURN solveLinear - Elapsed time: 0.000512s 0.00/0.11 > Postcondition is not implied! 0.00/0.11 0.00/0.11 LOG: RETURN check - Elapsed time: 0.000615s 0.00/0.11 INVARIANTS: 0.00/0.11 2: 0.00/0.11 Quasi-INVARIANTS to narrow Graph: 0.00/0.11 2: 1 <= main_y , 0.00/0.11 Narrowing transition: 0.00/0.11 main_x - 2*main_y, main_y -> 1 + main_y, rest remain the same}> 0.00/0.11 0.00/0.11 LOG: Narrow transition size 1 0.00/0.11 invGraph after Narrowing: 0.00/0.11 Transitions: 0.00/0.11 main_x - 2*main_y, main_y -> 1 + main_y, rest remain the same}> 0.00/0.11 Variables: 0.00/0.11 main_x, main_y 0.00/0.11 Checking conditional termination of SCC {l2}... 0.00/0.11 0.00/0.11 LOG: CALL solveLinear 0.00/0.11 0.00/0.11 LOG: RETURN solveLinear - Elapsed time: 0.000839s 0.00/0.11 Ranking function: -main_y 0.00/0.11 New Graphs: 0.00/0.11 Proving termination of subgraph 2 0.00/0.11 Analyzing SCC {l6}... 0.00/0.11 No cycles found. 0.00/0.11 0.00/0.11 Program Terminates 0.00/0.11 EOF