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Integer_TRS_Innermost 2019-03-21 04.53 pair #429995127
details
property
value
status
complete
benchmark
c.01.itrs
ran by
Akihisa Yamada
cpu timeout
1200 seconds
wallclock timeout
300 seconds
memory limit
137438953472 bytes
execution host
n181.star.cs.uiowa.edu
space
Mixed_ITRS_2014
run statistics
property
value
solver
Ctrl
configuration
Itrs
runtime (wallclock)
2.37566 seconds
cpu usage
2.4087
user time
1.20721
system time
1.20149
max virtual memory
687896.0
max residence set size
8740.0
stage attributes
key
value
starexec-result
YES
output
2.32/2.37 YES 2.32/2.37 2.32/2.37 DP problem for innermost termination. 2.32/2.37 P = 2.32/2.37 eval_2#(x, y) -> eval_1#(x - 1, y) [x >= 0 && y > 0 && y >= x] 2.32/2.37 eval_2#(I0, I1) -> eval_2#(I0, 2 * I1) [I0 >= 0 && I1 > 0 && I0 > I1] 2.32/2.37 eval_1#(I2, I3) -> eval_2#(I2, 1) [I2 >= 0] 2.32/2.37 R = 2.32/2.37 eval_2(x, y) -> eval_1(x - 1, y) [x >= 0 && y > 0 && y >= x] 2.32/2.37 eval_2(I0, I1) -> eval_2(I0, 2 * I1) [I0 >= 0 && I1 > 0 && I0 > I1] 2.32/2.37 eval_1(I2, I3) -> eval_2(I2, 1) [I2 >= 0] 2.32/2.37 2.32/2.37 We use the reverse value criterion with the projection function NU: 2.32/2.37 NU[eval_1#(z1,z2)] = z1 + -1 * 0 2.32/2.37 NU[eval_2#(z1,z2)] = z1 2.32/2.37 2.32/2.37 This gives the following inequalities: 2.32/2.37 x >= 0 && y > 0 && y >= x ==> x > x - 1 + -1 * 0 with x >= 0 2.32/2.37 I0 >= 0 && I1 > 0 && I0 > I1 ==> I0 >= I0 2.32/2.37 I2 >= 0 ==> I2 + -1 * 0 >= I2 2.32/2.37 2.32/2.37 We remove all the strictly oriented dependency pairs. 2.32/2.37 2.32/2.37 DP problem for innermost termination. 2.32/2.37 P = 2.32/2.37 eval_2#(I0, I1) -> eval_2#(I0, 2 * I1) [I0 >= 0 && I1 > 0 && I0 > I1] 2.32/2.37 eval_1#(I2, I3) -> eval_2#(I2, 1) [I2 >= 0] 2.32/2.37 R = 2.32/2.37 eval_2(x, y) -> eval_1(x - 1, y) [x >= 0 && y > 0 && y >= x] 2.32/2.37 eval_2(I0, I1) -> eval_2(I0, 2 * I1) [I0 >= 0 && I1 > 0 && I0 > I1] 2.32/2.37 eval_1(I2, I3) -> eval_2(I2, 1) [I2 >= 0] 2.32/2.37 2.32/2.37 The dependency graph for this problem is: 2.32/2.37 1 -> 1 2.32/2.37 2 -> 1 2.32/2.37 Where: 2.32/2.37 1) eval_2#(I0, I1) -> eval_2#(I0, 2 * I1) [I0 >= 0 && I1 > 0 && I0 > I1] 2.32/2.37 2) eval_1#(I2, I3) -> eval_2#(I2, 1) [I2 >= 0] 2.32/2.37 2.32/2.37 We have the following SCCs. 2.32/2.37 { 1 } 2.32/2.37 2.32/2.37 DP problem for innermost termination. 2.32/2.37 P = 2.32/2.37 eval_2#(I0, I1) -> eval_2#(I0, 2 * I1) [I0 >= 0 && I1 > 0 && I0 > I1] 2.32/2.37 R = 2.32/2.37 eval_2(x, y) -> eval_1(x - 1, y) [x >= 0 && y > 0 && y >= x] 2.32/2.37 eval_2(I0, I1) -> eval_2(I0, 2 * I1) [I0 >= 0 && I1 > 0 && I0 > I1] 2.32/2.37 eval_1(I2, I3) -> eval_2(I2, 1) [I2 >= 0] 2.32/2.37 2.32/2.37 We use the reverse value criterion with the projection function NU: 2.32/2.37 NU[eval_2#(z1,z2)] = z1 + -1 * z2 2.32/2.37 2.32/2.37 This gives the following inequalities: 2.32/2.37 I0 >= 0 && I1 > 0 && I0 > I1 ==> I0 + -1 * I1 > I0 + -1 * (2 * I1) with I0 + -1 * I1 >= 0 2.32/2.37 2.32/2.37 All dependency pairs are strictly oriented, so the entire dependency pair problem may be removed. 2.32/2.37 EOF
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