27.90/8.05	NO
27.90/8.05	proof of /export/starexec/sandbox/benchmark/theBenchmark.c
27.90/8.05	# AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty
27.90/8.05	
27.90/8.05	
27.90/8.05	Termination of the given C Problem could be disproven:
27.90/8.05	
27.90/8.05	(0) C Problem
27.90/8.05	(1) CToIRSProof [EQUIVALENT, 0 ms]
27.90/8.05	(2) IntTRS
27.90/8.05	(3) IRS2T2 [EQUIVALENT, 0 ms]
27.90/8.05	(4) T2IntSys
27.90/8.05	(5) T2 Underapproximation [COMPLETE, 2628 ms]
27.90/8.05	(6) T2IntSys
27.90/8.05	(7) T2 [COMPLETE, 283 ms]
27.90/8.05	(8) NO
27.90/8.05	
27.90/8.05	
27.90/8.05	----------------------------------------
27.90/8.05	
27.90/8.05	(0)
27.90/8.05	Obligation:
27.90/8.05	c file /export/starexec/sandbox/benchmark/theBenchmark.c
27.90/8.05	----------------------------------------
27.90/8.05	
27.90/8.05	(1) CToIRSProof (EQUIVALENT)
27.90/8.05	Parsed C Integer Program as IRS.
27.90/8.05	----------------------------------------
27.90/8.05	
27.90/8.05	(2)
27.90/8.05	Obligation:
27.90/8.05	Rules:
27.90/8.05	f1(x, y, z) -> f2(x_1, y, z) :|: TRUE
27.90/8.05	f2(x1, x2, x3) -> f3(x1, x4, x3) :|: TRUE
27.90/8.05	f3(x5, x6, x7) -> f4(x5, x6, x8) :|: TRUE
27.90/8.05	f5(x9, x10, x11) -> f6(arith, x10, x11) :|: TRUE && arith = x9 + x10
27.90/8.05	f6(x27, x28, x29) -> f7(x27, x30, x29) :|: TRUE && x30 = x28 + x29
27.90/8.05	f7(x31, x32, x33) -> f8(x31, x32, x34) :|: TRUE && x34 = x33 + 1
27.90/8.05	f4(x18, x19, x20) -> f5(x18, x19, x20) :|: x18 > 0
27.90/8.05	f8(x21, x22, x23) -> f4(x21, x22, x23) :|: TRUE
27.90/8.05	f4(x24, x25, x26) -> f9(x24, x25, x26) :|: x24 <= 0
27.90/8.05	Start term: f1(x, y, z)
27.90/8.05	
27.90/8.05	----------------------------------------
27.90/8.05	
27.90/8.05	(3) IRS2T2 (EQUIVALENT)
27.90/8.05	Transformed input IRS into an integer transition system.Used the following mapping from defined symbols to location IDs:
27.90/8.05	
27.90/8.05	   (f1_3,1)
27.90/8.05	   (f2_3,2)
27.90/8.05	   (f3_3,3)
27.90/8.05	   (f4_3,4)
27.90/8.05	   (f5_3,5)
27.90/8.05	   (f6_3,6)
27.90/8.05	   (f7_3,7)
27.90/8.05	   (f8_3,8)
27.90/8.05	   (f9_3,9)
27.90/8.05	
27.90/8.05	----------------------------------------
27.90/8.05	
27.90/8.05	(4)
27.90/8.05	Obligation:
27.90/8.05	START: 1;
27.90/8.05	
27.90/8.05	FROM: 1;
27.90/8.05	oldX0 := x0;
27.90/8.05	oldX1 := x1;
27.90/8.05	oldX2 := x2;
27.90/8.05	oldX3 := nondet();
27.90/8.05	assume(0 = 0);
27.90/8.05	x0 := oldX3;
27.90/8.05	x1 := oldX1;
27.90/8.05	x2 := oldX2;
27.90/8.05	TO: 2;
27.90/8.05	
27.90/8.05	FROM: 2;
27.90/8.05	oldX0 := x0;
27.90/8.05	oldX1 := x1;
27.90/8.05	oldX2 := x2;
27.90/8.05	oldX3 := nondet();
27.90/8.05	assume(0 = 0);
27.90/8.05	x0 := oldX0;
27.90/8.05	x1 := oldX3;
27.90/8.05	x2 := oldX2;
27.90/8.05	TO: 3;
27.90/8.05	
27.90/8.05	FROM: 3;
27.90/8.05	oldX0 := x0;
27.90/8.05	oldX1 := x1;
27.90/8.05	oldX2 := x2;
27.90/8.05	oldX3 := nondet();
27.90/8.05	assume(0 = 0);
27.90/8.05	x0 := oldX0;
27.90/8.05	x1 := oldX1;
27.90/8.05	x2 := oldX3;
27.90/8.05	TO: 4;
27.90/8.05	
27.90/8.05	FROM: 5;
27.90/8.05	oldX0 := x0;
27.90/8.05	oldX1 := x1;
27.90/8.05	oldX2 := x2;
27.90/8.05	oldX3 := -(-(oldX0 + oldX1));
27.90/8.05	assume(0 = 0 && oldX3 = oldX0 + oldX1);
27.90/8.05	x0 := -(-(oldX0 + oldX1));
27.90/8.05	x1 := oldX1;
27.90/8.05	x2 := oldX2;
27.90/8.05	TO: 6;
27.90/8.05	
27.90/8.05	FROM: 6;
27.90/8.05	oldX0 := x0;
27.90/8.05	oldX1 := x1;
27.90/8.05	oldX2 := x2;
27.90/8.05	oldX3 := -(-(oldX1 + oldX2));
27.90/8.05	assume(0 = 0 && oldX3 = oldX1 + oldX2);
27.90/8.05	x0 := oldX0;
27.90/8.05	x1 := -(-(oldX1 + oldX2));
27.90/8.05	x2 := oldX2;
27.90/8.05	TO: 7;
27.90/8.05	
27.90/8.05	FROM: 7;
27.90/8.05	oldX0 := x0;
27.90/8.05	oldX1 := x1;
27.90/8.05	oldX2 := x2;
27.90/8.05	oldX3 := -(-(oldX2 + 1));
27.90/8.05	assume(0 = 0 && oldX3 = oldX2 + 1);
27.90/8.05	x0 := oldX0;
27.90/8.05	x1 := oldX1;
27.90/8.05	x2 := -(-(oldX2 + 1));
27.90/8.05	TO: 8;
27.90/8.05	
27.90/8.05	FROM: 4;
27.90/8.05	oldX0 := x0;
27.90/8.05	oldX1 := x1;
27.90/8.05	oldX2 := x2;
27.90/8.05	assume(oldX0 > 0);
27.90/8.05	x0 := oldX0;
27.90/8.05	x1 := oldX1;
27.90/8.05	x2 := oldX2;
27.90/8.05	TO: 5;
27.90/8.05	
27.90/8.05	FROM: 8;
27.90/8.05	oldX0 := x0;
27.90/8.05	oldX1 := x1;
27.90/8.05	oldX2 := x2;
27.90/8.05	assume(0 = 0);
27.90/8.05	x0 := oldX0;
27.90/8.05	x1 := oldX1;
27.90/8.05	x2 := oldX2;
27.90/8.05	TO: 4;
27.90/8.05	
27.90/8.05	FROM: 4;
27.90/8.05	oldX0 := x0;
27.90/8.05	oldX1 := x1;
27.90/8.05	oldX2 := x2;
27.90/8.05	assume(oldX0 <= 0);
27.90/8.05	x0 := oldX0;
27.90/8.05	x1 := oldX1;
27.90/8.05	x2 := oldX2;
27.90/8.05	TO: 9;
27.90/8.05	
27.90/8.05	
27.90/8.05	----------------------------------------
27.90/8.05	
27.90/8.05	(5) T2 Underapproximation (COMPLETE)
27.90/8.05	Added the following guard statements:
27.90/8.05	
27.90/8.05	
27.90/8.05	
27.90/8.05	Transition 5:
27.90/8.05	assume(x0 >= 0);
27.90/8.05	
27.90/8.05	
27.90/8.05	Transition 6:
27.90/8.05	assume(x1 >= 0);
27.90/8.05	
27.90/8.05	
27.90/8.05	Transition 7:
27.90/8.05	assume(x2 >= 0);
27.90/8.05	
27.90/8.05	
27.90/8.05	
27.90/8.05	----------------------------------------
27.90/8.05	
27.90/8.05	(6)
27.90/8.05	Obligation:
27.90/8.05	START: 1;
27.90/8.05	
27.90/8.05	FROM: 1;
27.90/8.05	oldX0 := x0;
27.90/8.05	oldX1 := x1;
27.90/8.05	oldX2 := x2;
27.90/8.05	oldX3 := nondet();
27.90/8.05	assume(0 = 0);
27.90/8.05	x0 := oldX3;
27.90/8.05	x1 := x1;
27.90/8.05	x2 := x2;
27.90/8.05	TO: 2;
27.90/8.05	
27.90/8.05	FROM: 2;
27.90/8.05	oldX0 := x0;
27.90/8.05	oldX1 := x1;
27.90/8.05	oldX2 := x2;
27.90/8.05	oldX3 := nondet();
27.90/8.05	assume(0 = 0);
27.90/8.05	x0 := x0;
27.90/8.05	x1 := oldX3;
27.90/8.05	x2 := x2;
27.90/8.05	TO: 3;
27.90/8.05	
27.90/8.05	FROM: 3;
27.90/8.05	oldX0 := x0;
27.90/8.05	oldX1 := x1;
27.90/8.05	oldX2 := x2;
27.90/8.05	oldX3 := nondet();
27.90/8.05	assume(0 = 0);
27.90/8.05	x0 := x0;
27.90/8.05	x1 := x1;
27.90/8.05	x2 := oldX3;
27.90/8.05	TO: 4;
27.90/8.05	
27.90/8.05	FROM: 5;
27.90/8.05	oldX0 := x0;
27.90/8.05	oldX1 := x1;
27.90/8.05	oldX2 := x2;
27.90/8.05	oldX3 := x0 + x1;
27.90/8.05	assume(0 = 0 && x0 + x1 = x0 + x1);
27.90/8.05	assume(x0 >= 0);
27.90/8.05	x0 := x0 + x1;
27.90/8.05	x1 := x1;
27.90/8.05	x2 := x2;
27.90/8.05	TO: 6;
27.90/8.05	
27.90/8.05	FROM: 6;
27.90/8.05	oldX0 := x0;
27.90/8.05	oldX1 := x1;
27.90/8.05	oldX2 := x2;
27.90/8.05	oldX3 := x1 + x2;
27.90/8.05	assume(0 = 0 && x1 + x2 = x1 + x2);
27.90/8.05	x0 := x0;
27.90/8.05	assume(x1 >= 0);
27.90/8.05	x1 := x1 + x2;
27.90/8.05	x2 := x2;
27.90/8.05	TO: 7;
27.90/8.05	
27.90/8.05	FROM: 7;
27.90/8.05	oldX0 := x0;
27.90/8.05	oldX1 := x1;
27.90/8.05	oldX2 := x2;
27.90/8.05	oldX3 := x2 + 1;
27.90/8.05	assume(0 = 0 && x2 + 1 = x2 + 1);
27.90/8.05	x0 := x0;
27.90/8.05	x1 := x1;
27.90/8.05	assume(x2 >= 0);
27.90/8.05	x2 := x2 + 1;
27.90/8.05	TO: 8;
27.90/8.05	
27.90/8.05	FROM: 4;
27.90/8.05	oldX0 := x0;
27.90/8.05	oldX1 := x1;
27.90/8.05	oldX2 := x2;
27.90/8.05	assume(x0 > 0);
27.90/8.05	x0 := x0;
27.90/8.05	x1 := x1;
27.90/8.05	x2 := x2;
27.90/8.05	TO: 5;
27.90/8.05	
27.90/8.05	FROM: 8;
27.90/8.05	oldX0 := x0;
27.90/8.05	oldX1 := x1;
27.90/8.05	oldX2 := x2;
27.90/8.05	assume(0 = 0);
27.90/8.05	x0 := x0;
27.90/8.05	x1 := x1;
27.90/8.05	x2 := x2;
27.90/8.05	TO: 4;
27.90/8.05	
27.90/8.05	FROM: 4;
27.90/8.05	oldX0 := x0;
27.90/8.05	oldX1 := x1;
27.90/8.05	oldX2 := x2;
27.90/8.05	assume(x0 <= 0);
27.90/8.05	x0 := x0;
27.90/8.05	x1 := x1;
27.90/8.05	x2 := x2;
27.90/8.05	TO: 9;
27.90/8.05	
27.90/8.05	
27.90/8.05	----------------------------------------
27.90/8.05	
27.90/8.05	(7) T2 (COMPLETE)
27.90/8.05	Found this recurrent set for cutpoint 6: oldX3-x2 <= 0 and -x0+1 <= 0
27.90/8.05	
27.90/8.05	----------------------------------------
27.90/8.05	
27.90/8.05	(8)
27.90/8.05	NO
28.02/8.09	EOF