Initial Problem
Start: eval_foo_start
Program_Vars: Arg_0, Arg_1
Temp_Vars:
Locations: eval_foo_bb0_in, eval_foo_bb1_in, eval_foo_bb2_in, eval_foo_bb3_in, eval_foo_start, eval_foo_stop
Transitions:
1:eval_foo_bb0_in(Arg_0,Arg_1) -> eval_foo_bb1_in(Arg_1,Arg_1)
2:eval_foo_bb1_in(Arg_0,Arg_1) -> eval_foo_bb2_in(Arg_0,Arg_1):|:Arg_0<0
3:eval_foo_bb1_in(Arg_0,Arg_1) -> eval_foo_bb3_in(Arg_0,Arg_1):|:0<=Arg_0
4:eval_foo_bb2_in(Arg_0,Arg_1) -> eval_foo_bb1_in(Arg_0+1,Arg_1):|:Arg_0+5<0
5:eval_foo_bb2_in(Arg_0,Arg_1) -> eval_foo_bb1_in(Arg_0+1,Arg_1):|:0<5+Arg_0
6:eval_foo_bb2_in(Arg_0,Arg_1) -> eval_foo_bb1_in(Arg_0,Arg_1):|:Arg_0+5<=0 && 0<=5+Arg_0
7:eval_foo_bb3_in(Arg_0,Arg_1) -> eval_foo_stop(Arg_0,Arg_1)
0:eval_foo_start(Arg_0,Arg_1) -> eval_foo_bb0_in(Arg_0,Arg_1)
Preprocessing
Found invariant Arg_1<=Arg_0 && 0<=Arg_0 for location eval_foo_stop
Found invariant Arg_1<=Arg_0 && 0<=Arg_0 for location eval_foo_bb3_in
Found invariant 1+Arg_1<=0 && Arg_1<=Arg_0 && 2+Arg_0+Arg_1<=0 && 1+Arg_0<=0 for location eval_foo_bb2_in
Found invariant Arg_1<=Arg_0 for location eval_foo_bb1_in
Problem after Preprocessing
Start: eval_foo_start
Program_Vars: Arg_0, Arg_1
Temp_Vars:
Locations: eval_foo_bb0_in, eval_foo_bb1_in, eval_foo_bb2_in, eval_foo_bb3_in, eval_foo_start, eval_foo_stop
Transitions:
1:eval_foo_bb0_in(Arg_0,Arg_1) -> eval_foo_bb1_in(Arg_1,Arg_1)
2:eval_foo_bb1_in(Arg_0,Arg_1) -> eval_foo_bb2_in(Arg_0,Arg_1):|:Arg_1<=Arg_0 && Arg_0<0
3:eval_foo_bb1_in(Arg_0,Arg_1) -> eval_foo_bb3_in(Arg_0,Arg_1):|:Arg_1<=Arg_0 && 0<=Arg_0
4:eval_foo_bb2_in(Arg_0,Arg_1) -> eval_foo_bb1_in(Arg_0+1,Arg_1):|:1+Arg_1<=0 && Arg_1<=Arg_0 && 2+Arg_0+Arg_1<=0 && 1+Arg_0<=0 && Arg_0+5<0
5:eval_foo_bb2_in(Arg_0,Arg_1) -> eval_foo_bb1_in(Arg_0+1,Arg_1):|:1+Arg_1<=0 && Arg_1<=Arg_0 && 2+Arg_0+Arg_1<=0 && 1+Arg_0<=0 && 0<5+Arg_0
6:eval_foo_bb2_in(Arg_0,Arg_1) -> eval_foo_bb1_in(Arg_0,Arg_1):|:1+Arg_1<=0 && Arg_1<=Arg_0 && 2+Arg_0+Arg_1<=0 && 1+Arg_0<=0 && Arg_0+5<=0 && 0<=5+Arg_0
7:eval_foo_bb3_in(Arg_0,Arg_1) -> eval_foo_stop(Arg_0,Arg_1):|:Arg_1<=Arg_0 && 0<=Arg_0
0:eval_foo_start(Arg_0,Arg_1) -> eval_foo_bb0_in(Arg_0,Arg_1)
MPRF for transition 4:eval_foo_bb2_in(Arg_0,Arg_1) -> eval_foo_bb1_in(Arg_0+1,Arg_1):|:1+Arg_1<=0 && Arg_1<=Arg_0 && 2+Arg_0+Arg_1<=0 && 1+Arg_0<=0 && Arg_0+5<0 of depth 1:
new bound:
Arg_1 {O(n)}
MPRF:
eval_foo_bb2_in [-Arg_0 ]
eval_foo_bb1_in [-Arg_0 ]
MPRF for transition 5:eval_foo_bb2_in(Arg_0,Arg_1) -> eval_foo_bb1_in(Arg_0+1,Arg_1):|:1+Arg_1<=0 && Arg_1<=Arg_0 && 2+Arg_0+Arg_1<=0 && 1+Arg_0<=0 && 0<5+Arg_0 of depth 1:
new bound:
Arg_1 {O(n)}
MPRF:
eval_foo_bb2_in [-Arg_0 ]
eval_foo_bb1_in [-Arg_0 ]
Analysing control-flow refined program
Cut unsatisfiable transition 89: n_eval_foo_bb1_in___10->eval_foo_bb3_in
Cut unsatisfiable transition 90: n_eval_foo_bb1_in___5->eval_foo_bb3_in
Cut unsatisfiable transition 92: n_eval_foo_bb1_in___8->eval_foo_bb3_in
Found invariant 1<=0 for location n_eval_foo_bb2_in___4
Found invariant 1+Arg_1<=0 && 1+Arg_1<=Arg_0 && 1+Arg_0+Arg_1<=0 && 0<=4+Arg_1 && 0<=7+Arg_0+Arg_1 && Arg_0<=4+Arg_1 && Arg_0<=0 && 0<=3+Arg_0 for location n_eval_foo_bb1_in___9
Found invariant 6+Arg_1<=0 && 1+Arg_1<=Arg_0 && 11+Arg_0+Arg_1<=0 && 5+Arg_0<=0 for location n_eval_foo_bb2_in___7
Found invariant 2+Arg_1<=0 && 1+Arg_1<=Arg_0 && 3+Arg_0+Arg_1<=0 && 0<=4+Arg_1 && 0<=7+Arg_0+Arg_1 && Arg_0<=3+Arg_1 && 1+Arg_0<=0 && 0<=3+Arg_0 for location n_eval_foo_bb2_in___2
Found invariant Arg_1<=Arg_0 && 0<=4+Arg_1 && 0<=4+Arg_0+Arg_1 && Arg_0<=4+Arg_1 && 0<=Arg_0 for location eval_foo_stop
Found invariant Arg_1<=Arg_0 && 0<=4+Arg_1 && 0<=4+Arg_0+Arg_1 && Arg_0<=4+Arg_1 && 0<=Arg_0 for location eval_foo_bb3_in
Found invariant 6+Arg_1<=0 && 1+Arg_1<=Arg_0 && 11+Arg_0+Arg_1<=0 && 5+Arg_0<=0 for location n_eval_foo_bb1_in___10
Found invariant 1+Arg_1<=0 && Arg_1<=Arg_0 && 2+Arg_0+Arg_1<=0 && Arg_0<=Arg_1 && 1+Arg_0<=0 for location n_eval_foo_bb2_in___11
Found invariant 6+Arg_1<=0 && 1+Arg_1<=Arg_0 && 11+Arg_0+Arg_1<=0 && 5+Arg_0<=0 && 0<=5+Arg_0 for location n_eval_foo_bb1_in___5
Found invariant 5+Arg_1<=0 && Arg_1<=Arg_0 && 10+Arg_0+Arg_1<=0 && 0<=5+Arg_1 && 0<=10+Arg_0+Arg_1 && Arg_0<=Arg_1 && 5+Arg_0<=0 && 0<=5+Arg_0 for location n_eval_foo_bb2_in___1
Found invariant Arg_1<=Arg_0 && Arg_0<=Arg_1 for location eval_foo_bb1_in
Found invariant 5+Arg_1<=0 && Arg_1<=Arg_0 && 10+Arg_0+Arg_1<=0 && 0<=5+Arg_1 && 0<=10+Arg_0+Arg_1 && Arg_0<=Arg_1 && 5+Arg_0<=0 && 0<=5+Arg_0 for location n_eval_foo_bb1_in___8
Found invariant 6+Arg_1<=0 && 1+Arg_1<=Arg_0 && 11+Arg_0+Arg_1<=0 && 5+Arg_0<=0 && 0<=5+Arg_0 for location n_eval_foo_bb2_in___3
Found invariant 1<=0 for location n_eval_foo_bb1_in___6
Cut unsatisfiable transition 66: n_eval_foo_bb1_in___6->n_eval_foo_bb2_in___4
Cut unsatisfiable transition 91: n_eval_foo_bb1_in___6->eval_foo_bb3_in
Cut unsatisfiable transition 75: n_eval_foo_bb2_in___4->n_eval_foo_bb1_in___6
Cut unsatisfiable transition 78: n_eval_foo_bb2_in___7->n_eval_foo_bb1_in___6
Cut unreachable locations [n_eval_foo_bb1_in___6; n_eval_foo_bb2_in___4] from the program graph
MPRF for transition 63:n_eval_foo_bb1_in___10(Arg_0,Arg_1) -> n_eval_foo_bb2_in___7(Arg_0,Arg_1):|:6+Arg_1<=0 && 1+Arg_1<=Arg_0 && 11+Arg_0+Arg_1<=0 && 5+Arg_0<=0 && Arg_1<=Arg_0 && Arg_0<0 && 1+Arg_0<=0 && 5+Arg_1<=0 && Arg_1<=Arg_0 && 1+Arg_0<=0 && Arg_1<=Arg_0 && Arg_0<0 of depth 1:
new bound:
Arg_1 {O(n)}
MPRF:
n_eval_foo_bb2_in___7 [-Arg_0-1 ]
n_eval_foo_bb1_in___10 [-Arg_0 ]
MPRF for transition 76:n_eval_foo_bb2_in___7(Arg_0,Arg_1) -> n_eval_foo_bb1_in___10(Arg_0+1,Arg_1):|:6+Arg_1<=0 && 1+Arg_1<=Arg_0 && 11+Arg_0+Arg_1<=0 && 5+Arg_0<=0 && 1+Arg_0<=0 && Arg_1<=Arg_0 && 5+Arg_1<=0 && 5+Arg_0<0 && Arg_1<=Arg_0 of depth 1:
new bound:
Arg_1+5 {O(n)}
MPRF:
n_eval_foo_bb2_in___7 [-Arg_0-5 ]
n_eval_foo_bb1_in___10 [-Arg_0-5 ]
MPRF for transition 68:n_eval_foo_bb1_in___9(Arg_0,Arg_1) -> n_eval_foo_bb2_in___2(Arg_0,Arg_1):|:1+Arg_1<=0 && 1+Arg_1<=Arg_0 && 1+Arg_0+Arg_1<=0 && 0<=4+Arg_1 && 0<=7+Arg_0+Arg_1 && Arg_0<=4+Arg_1 && Arg_0<=0 && 0<=3+Arg_0 && Arg_1<=Arg_0 && 0<5+Arg_0 && Arg_1<=Arg_0 && Arg_0<0 of depth 1:
new bound:
3 {O(1)}
MPRF:
n_eval_foo_bb2_in___2 [-Arg_0-1 ]
n_eval_foo_bb1_in___9 [-Arg_0 ]
MPRF for transition 73:n_eval_foo_bb2_in___2(Arg_0,Arg_1) -> n_eval_foo_bb1_in___9(Arg_0+1,Arg_1):|:2+Arg_1<=0 && 1+Arg_1<=Arg_0 && 3+Arg_0+Arg_1<=0 && 0<=4+Arg_1 && 0<=7+Arg_0+Arg_1 && Arg_0<=3+Arg_1 && 1+Arg_0<=0 && 0<=3+Arg_0 && Arg_0<0 && 0<5+Arg_0 && Arg_1<=Arg_0 && Arg_1<=Arg_0 && 1+Arg_0<=0 && 0<5+Arg_0 of depth 1:
new bound:
3 {O(1)}
MPRF:
n_eval_foo_bb2_in___2 [-Arg_0 ]
n_eval_foo_bb1_in___9 [-Arg_0 ]
CFR did not improve the program. Rolling back
All Bounds
Timebounds
Overall timebound:inf {Infinity}
1: eval_foo_bb0_in->eval_foo_bb1_in: 1 {O(1)}
2: eval_foo_bb1_in->eval_foo_bb2_in: inf {Infinity}
3: eval_foo_bb1_in->eval_foo_bb3_in: 1 {O(1)}
4: eval_foo_bb2_in->eval_foo_bb1_in: Arg_1 {O(n)}
5: eval_foo_bb2_in->eval_foo_bb1_in: Arg_1 {O(n)}
6: eval_foo_bb2_in->eval_foo_bb1_in: inf {Infinity}
7: eval_foo_bb3_in->eval_foo_stop: 1 {O(1)}
0: eval_foo_start->eval_foo_bb0_in: 1 {O(1)}
Costbounds
Overall costbound: inf {Infinity}
1: eval_foo_bb0_in->eval_foo_bb1_in: 1 {O(1)}
2: eval_foo_bb1_in->eval_foo_bb2_in: inf {Infinity}
3: eval_foo_bb1_in->eval_foo_bb3_in: 1 {O(1)}
4: eval_foo_bb2_in->eval_foo_bb1_in: Arg_1 {O(n)}
5: eval_foo_bb2_in->eval_foo_bb1_in: Arg_1 {O(n)}
6: eval_foo_bb2_in->eval_foo_bb1_in: inf {Infinity}
7: eval_foo_bb3_in->eval_foo_stop: 1 {O(1)}
0: eval_foo_start->eval_foo_bb0_in: 1 {O(1)}
Sizebounds
1: eval_foo_bb0_in->eval_foo_bb1_in, Arg_0: Arg_1 {O(n)}
1: eval_foo_bb0_in->eval_foo_bb1_in, Arg_1: Arg_1 {O(n)}
2: eval_foo_bb1_in->eval_foo_bb2_in, Arg_0: Arg_1+8 {O(n)}
2: eval_foo_bb1_in->eval_foo_bb2_in, Arg_1: Arg_1 {O(n)}
3: eval_foo_bb1_in->eval_foo_bb3_in, Arg_0: Arg_1+3 {O(n)}
3: eval_foo_bb1_in->eval_foo_bb3_in, Arg_1: 2*Arg_1 {O(n)}
4: eval_foo_bb2_in->eval_foo_bb1_in, Arg_0: Arg_1+8 {O(n)}
4: eval_foo_bb2_in->eval_foo_bb1_in, Arg_1: Arg_1 {O(n)}
5: eval_foo_bb2_in->eval_foo_bb1_in, Arg_0: 3 {O(1)}
5: eval_foo_bb2_in->eval_foo_bb1_in, Arg_1: Arg_1 {O(n)}
6: eval_foo_bb2_in->eval_foo_bb1_in, Arg_0: 5 {O(1)}
6: eval_foo_bb2_in->eval_foo_bb1_in, Arg_1: Arg_1 {O(n)}
7: eval_foo_bb3_in->eval_foo_stop, Arg_0: Arg_1+3 {O(n)}
7: eval_foo_bb3_in->eval_foo_stop, Arg_1: 2*Arg_1 {O(n)}
0: eval_foo_start->eval_foo_bb0_in, Arg_0: Arg_0 {O(n)}
0: eval_foo_start->eval_foo_bb0_in, Arg_1: Arg_1 {O(n)}