9.84/3.35 NO 9.84/3.35 proof of /export/starexec/sandbox/benchmark/theBenchmark.c 9.84/3.35 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 9.84/3.35 9.84/3.35 9.84/3.35 Termination of the given C Problem could be disproven: 9.84/3.35 9.84/3.35 (0) C Problem 9.84/3.35 (1) CToIRSProof [EQUIVALENT, 0 ms] 9.84/3.35 (2) IntTRS 9.84/3.35 (3) IRS2T2 [EQUIVALENT, 0 ms] 9.84/3.35 (4) T2IntSys 9.84/3.35 (5) T2 [COMPLETE, 1387 ms] 9.84/3.35 (6) NO 9.84/3.35 9.84/3.35 9.84/3.35 ---------------------------------------- 9.84/3.35 9.84/3.35 (0) 9.84/3.35 Obligation: 9.84/3.35 c file /export/starexec/sandbox/benchmark/theBenchmark.c 9.84/3.35 ---------------------------------------- 9.84/3.35 9.84/3.35 (1) CToIRSProof (EQUIVALENT) 9.84/3.35 Parsed C Integer Program as IRS. 9.84/3.35 ---------------------------------------- 9.84/3.35 9.84/3.35 (2) 9.84/3.35 Obligation: 9.84/3.35 Rules: 9.84/3.35 f1(x, y) -> f2(x_1, y) :|: TRUE 9.84/3.35 f2(x1, x2) -> f3(x1, x3) :|: TRUE 9.84/3.35 f7(x4, x5) -> f8(arith, x5) :|: TRUE && arith = x4 - x5 9.84/3.35 f4(x6, x7) -> f7(x6, x7) :|: x6 >= 0 9.84/3.35 f8(x8, x9) -> f4(x8, x9) :|: TRUE 9.84/3.35 f4(x10, x11) -> f9(x10, x11) :|: x10 < 0 9.84/3.35 f3(x12, x13) -> f4(x12, x13) :|: x13 >= 0 9.84/3.35 f3(x14, x15) -> f5(x14, x15) :|: x15 < 0 9.84/3.35 f9(x16, x17) -> f6(x16, x17) :|: TRUE 9.84/3.35 f5(x18, x19) -> f6(x18, x19) :|: TRUE 9.84/3.35 Start term: f1(x, y) 9.84/3.35 9.84/3.35 ---------------------------------------- 9.84/3.35 9.84/3.35 (3) IRS2T2 (EQUIVALENT) 9.84/3.35 Transformed input IRS into an integer transition system.Used the following mapping from defined symbols to location IDs: 9.84/3.35 9.84/3.35 (f1_2,1) 9.84/3.35 (f2_2,2) 9.84/3.35 (f3_2,3) 9.84/3.35 (f7_2,4) 9.84/3.35 (f8_2,5) 9.84/3.35 (f4_2,6) 9.84/3.35 (f9_2,7) 9.84/3.35 (f5_2,8) 9.84/3.35 (f6_2,9) 9.84/3.35 9.84/3.35 ---------------------------------------- 9.84/3.35 9.84/3.35 (4) 9.84/3.35 Obligation: 9.84/3.35 START: 1; 9.84/3.35 9.84/3.35 FROM: 1; 9.84/3.35 oldX0 := x0; 9.84/3.35 oldX1 := x1; 9.84/3.35 oldX2 := nondet(); 9.84/3.35 assume(0 = 0); 9.84/3.35 x0 := oldX2; 9.84/3.35 x1 := oldX1; 9.84/3.35 TO: 2; 9.84/3.35 9.84/3.35 FROM: 2; 9.84/3.35 oldX0 := x0; 9.84/3.35 oldX1 := x1; 9.84/3.35 oldX2 := nondet(); 9.84/3.35 assume(0 = 0); 9.84/3.35 x0 := oldX0; 9.84/3.35 x1 := oldX2; 9.84/3.35 TO: 3; 9.84/3.35 9.84/3.35 FROM: 4; 9.84/3.35 oldX0 := x0; 9.84/3.35 oldX1 := x1; 9.84/3.35 oldX2 := -(oldX1 - oldX0); 9.84/3.35 assume(0 = 0 && oldX2 = oldX0 - oldX1); 9.84/3.35 x0 := -(oldX1 - oldX0); 9.84/3.35 x1 := oldX1; 9.84/3.35 TO: 5; 9.84/3.35 9.84/3.35 FROM: 6; 9.84/3.35 oldX0 := x0; 9.84/3.35 oldX1 := x1; 9.84/3.35 assume(oldX0 >= 0); 9.84/3.35 x0 := oldX0; 9.84/3.35 x1 := oldX1; 9.84/3.35 TO: 4; 9.84/3.35 9.84/3.35 FROM: 5; 9.84/3.35 oldX0 := x0; 9.84/3.35 oldX1 := x1; 9.84/3.35 assume(0 = 0); 9.84/3.35 x0 := oldX0; 9.84/3.35 x1 := oldX1; 9.84/3.35 TO: 6; 9.84/3.35 9.84/3.35 FROM: 6; 9.84/3.35 oldX0 := x0; 9.84/3.35 oldX1 := x1; 9.84/3.35 assume(oldX0 < 0); 9.84/3.35 x0 := oldX0; 9.84/3.35 x1 := oldX1; 9.84/3.35 TO: 7; 9.84/3.35 9.84/3.35 FROM: 3; 9.84/3.35 oldX0 := x0; 9.84/3.35 oldX1 := x1; 9.84/3.35 assume(oldX1 >= 0); 9.84/3.35 x0 := oldX0; 9.84/3.35 x1 := oldX1; 9.84/3.35 TO: 6; 9.84/3.35 9.84/3.35 FROM: 3; 9.84/3.35 oldX0 := x0; 9.84/3.35 oldX1 := x1; 9.84/3.35 assume(oldX1 < 0); 9.84/3.35 x0 := oldX0; 9.84/3.35 x1 := oldX1; 9.84/3.35 TO: 8; 9.84/3.35 9.84/3.35 FROM: 7; 9.84/3.35 oldX0 := x0; 9.84/3.35 oldX1 := x1; 9.84/3.35 assume(0 = 0); 9.84/3.35 x0 := oldX0; 9.84/3.35 x1 := oldX1; 9.84/3.35 TO: 9; 9.84/3.35 9.84/3.35 FROM: 8; 9.84/3.35 oldX0 := x0; 9.84/3.35 oldX1 := x1; 9.84/3.35 assume(0 = 0); 9.84/3.35 x0 := oldX0; 9.84/3.35 x1 := oldX1; 9.84/3.35 TO: 9; 9.84/3.35 9.84/3.35 9.84/3.35 ---------------------------------------- 9.84/3.35 9.84/3.35 (5) T2 (COMPLETE) 9.84/3.35 Found this recurrent set for cutpoint 7: oldX1 == 0 and oldX2 == 0 and x0 == 0 and x1 == 0 9.84/3.35 9.84/3.35 ---------------------------------------- 9.84/3.35 9.84/3.35 (6) 9.84/3.35 NO 10.10/3.38 EOF