C Integ Progr 58257 pair #381735958

details

property	value
status	complete
benchmark	Benghazi_nondet_true-termination.c
ran by	Akihisa Yamada
cpu timeout	1200 seconds
wallclock timeout	300 seconds
memory limit	137438953472 bytes
execution host	n027.star.cs.uiowa.edu
space	Ton_Chanh_15

run statistics

property	value
solver	AProVE
configuration	c
runtime (wallclock)	3.53455781937 seconds
cpu usage	11.083095986
max memory	1.254305792E9

stage attributes

key	value
output-size	3655
starexec-result	YES

output

/export/starexec/sandbox2/solver/bin/starexec_run_c /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files


--------------------------------------------------------------------------------


YES
proof of /export/starexec/sandbox2/benchmark/theBenchmark.c
# AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty


Termination of the given C Problem could be proven:

(0) C Problem
(1) CToIRSProof [EQUIVALENT, 0 ms]
(2) IntTRS
(3) IRS2T2 [EQUIVALENT, 0 ms]
(4) T2IntSys
(5) T2 [EQUIVALENT, 1416 ms]
(6) YES


----------------------------------------

(0)
Obligation:
c file /export/starexec/sandbox2/benchmark/theBenchmark.c
----------------------------------------

(1) CToIRSProof (EQUIVALENT)
Parsed C Integer Program as IRS.
----------------------------------------

(2)
Obligation:
Rules:
f1(x, d1, d2, d1old) -> f2(x_1, d1, d2, d1old) :|: TRUE
f2(x1, x2, x3, x4) -> f3(x1, x5, x3, x4) :|: TRUE
f3(x6, x7, x8, x9) -> f4(x6, x7, x10, x9) :|: TRUE
f5(x11, x12, x13, x14) -> f6(arith, x12, x13, x14) :|: TRUE && arith = x11 - x12
f6(x15, x16, x17, x18) -> f7(x15, x16, x17, x16) :|: TRUE
f7(x39, x40, x41, x42) -> f8(x39, x43, x41, x42) :|: TRUE && x43 = x41 + 1
f8(x44, x45, x46, x47) -> f9(x44, x45, x48, x47) :|: TRUE && x48 = x47 + 1
f4(x27, x28, x29, x30) -> f5(x27, x28, x29, x30) :|: x27 >= 0
f9(x31, x32, x33, x34) -> f4(x31, x32, x33, x34) :|: TRUE
f4(x35, x36, x37, x38) -> f10(x35, x36, x37, x38) :|: x35 < 0
Start term: f1(x, d1, d2, d1old)

----------------------------------------

(3) IRS2T2 (EQUIVALENT)
Transformed input IRS into an integer transition system.Used the following mapping from defined symbols to location IDs:

   (f1_4,1)
   (f2_4,2)
   (f3_4,3)
   (f4_4,4)
   (f5_4,5)
   (f6_4,6)
   (f7_4,7)
   (f8_4,8)
   (f9_4,9)
   (f10_4,10)

----------------------------------------

(4)
Obligation:
START: 1;

FROM: 1;
oldX0 := x0;
oldX1 := x1;
oldX2 := x2;
oldX3 := x3;
oldX4 := nondet();
assume(0 = 0);
x0 := oldX4;
x1 := oldX1;
x2 := oldX2;
x3 := oldX3;
TO: 2;

FROM: 2;
oldX0 := x0;
oldX1 := x1;
oldX2 := x2;
oldX3 := x3;
oldX4 := nondet();
assume(0 = 0);
x0 := oldX0;
x1 := oldX4;
x2 := oldX2;
x3 := oldX3;
TO: 3;

FROM: 3;
oldX0 := x0;
oldX1 := x1;
oldX2 := x2;

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