16.21/4.99 NO 16.21/5.00 proof of /export/starexec/sandbox/benchmark/theBenchmark.c 16.21/5.00 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 16.21/5.00 16.21/5.00 16.21/5.00 Termination of the given C Problem could be disproven: 16.21/5.00 16.21/5.00 (0) C Problem 16.21/5.00 (1) CToIRSProof [EQUIVALENT, 0 ms] 16.21/5.00 (2) IntTRS 16.21/5.00 (3) IRS2T2 [EQUIVALENT, 0 ms] 16.21/5.00 (4) T2IntSys 16.21/5.00 (5) T2 [COMPLETE, 2144 ms] 16.21/5.00 (6) NO 16.21/5.00 16.21/5.00 16.21/5.00 ---------------------------------------- 16.21/5.00 16.21/5.00 (0) 16.21/5.00 Obligation: 16.21/5.00 c file /export/starexec/sandbox/benchmark/theBenchmark.c 16.21/5.00 ---------------------------------------- 16.21/5.00 16.21/5.00 (1) CToIRSProof (EQUIVALENT) 16.21/5.00 Parsed C Integer Program as IRS. 16.21/5.00 ---------------------------------------- 16.21/5.00 16.21/5.00 (2) 16.21/5.00 Obligation: 16.21/5.00 Rules: 16.21/5.00 f1(a, b, olda) -> f2(x_1, b, olda) :|: TRUE 16.21/5.00 f2(x, x1, x2) -> f3(x, x3, x2) :|: TRUE 16.21/5.00 f4(x4, x5, x6) -> f5(x4, x5, x4) :|: TRUE 16.21/5.00 f5(x7, x8, x9) -> f6(x8, x8, x9) :|: TRUE 16.21/5.00 f6(x10, x11, x12) -> f7(x10, arith, x12) :|: TRUE && arith = x12 + 1 16.21/5.00 f3(x13, x14, x15) -> f4(x13, x14, x15) :|: x13 >= 7 16.21/5.00 f7(x16, x17, x18) -> f3(x16, x17, x18) :|: TRUE 16.21/5.00 f3(x19, x20, x21) -> f8(x19, x20, x21) :|: x19 < 7 16.21/5.00 Start term: f1(a, b, olda) 16.21/5.00 16.21/5.00 ---------------------------------------- 16.21/5.00 16.21/5.00 (3) IRS2T2 (EQUIVALENT) 16.21/5.00 Transformed input IRS into an integer transition system.Used the following mapping from defined symbols to location IDs: 16.21/5.00 16.21/5.00 (f1_3,1) 16.21/5.00 (f2_3,2) 16.21/5.00 (f3_3,3) 16.21/5.00 (f4_3,4) 16.21/5.00 (f5_3,5) 16.21/5.00 (f6_3,6) 16.21/5.00 (f7_3,7) 16.21/5.00 (f8_3,8) 16.21/5.00 16.21/5.00 ---------------------------------------- 16.21/5.00 16.21/5.00 (4) 16.21/5.00 Obligation: 16.21/5.00 START: 1; 16.21/5.00 16.21/5.00 FROM: 1; 16.21/5.00 oldX0 := x0; 16.21/5.00 oldX1 := x1; 16.21/5.00 oldX2 := x2; 16.21/5.00 oldX3 := nondet(); 16.21/5.00 assume(0 = 0); 16.21/5.00 x0 := oldX3; 16.21/5.00 x1 := oldX1; 16.21/5.00 x2 := oldX2; 16.21/5.00 TO: 2; 16.21/5.00 16.21/5.00 FROM: 2; 16.21/5.00 oldX0 := x0; 16.21/5.00 oldX1 := x1; 16.21/5.00 oldX2 := x2; 16.21/5.00 oldX3 := nondet(); 16.21/5.00 assume(0 = 0); 16.21/5.00 x0 := oldX0; 16.21/5.00 x1 := oldX3; 16.21/5.00 x2 := oldX2; 16.21/5.00 TO: 3; 16.21/5.00 16.21/5.00 FROM: 4; 16.21/5.00 oldX0 := x0; 16.21/5.00 oldX1 := x1; 16.21/5.00 oldX2 := x2; 16.21/5.00 assume(0 = 0); 16.21/5.00 x0 := oldX0; 16.21/5.00 x1 := oldX1; 16.21/5.00 x2 := oldX0; 16.21/5.00 TO: 5; 16.21/5.00 16.21/5.00 FROM: 5; 16.21/5.00 oldX0 := x0; 16.21/5.00 oldX1 := x1; 16.21/5.00 oldX2 := x2; 16.21/5.00 assume(0 = 0); 16.21/5.00 x0 := oldX1; 16.21/5.00 x1 := oldX1; 16.21/5.00 x2 := oldX2; 16.21/5.00 TO: 6; 16.21/5.00 16.21/5.00 FROM: 6; 16.21/5.00 oldX0 := x0; 16.21/5.00 oldX1 := x1; 16.21/5.00 oldX2 := x2; 16.21/5.00 oldX3 := -(-(oldX2 + 1)); 16.21/5.00 assume(0 = 0 && oldX3 = oldX2 + 1); 16.21/5.00 x0 := oldX0; 16.21/5.00 x1 := -(-(oldX2 + 1)); 16.21/5.00 x2 := oldX2; 16.21/5.00 TO: 7; 16.21/5.00 16.21/5.00 FROM: 3; 16.21/5.00 oldX0 := x0; 16.21/5.00 oldX1 := x1; 16.21/5.00 oldX2 := x2; 16.21/5.00 assume(oldX0 >= 7); 16.21/5.00 x0 := oldX0; 16.21/5.00 x1 := oldX1; 16.21/5.00 x2 := oldX2; 16.21/5.00 TO: 4; 16.21/5.00 16.21/5.00 FROM: 7; 16.21/5.00 oldX0 := x0; 16.21/5.00 oldX1 := x1; 16.21/5.00 oldX2 := x2; 16.21/5.00 assume(0 = 0); 16.21/5.00 x0 := oldX0; 16.21/5.00 x1 := oldX1; 16.21/5.00 x2 := oldX2; 16.21/5.00 TO: 3; 16.21/5.00 16.21/5.00 FROM: 3; 16.21/5.00 oldX0 := x0; 16.21/5.00 oldX1 := x1; 16.21/5.00 oldX2 := x2; 16.21/5.00 assume(oldX0 < 7); 16.21/5.00 x0 := oldX0; 16.21/5.00 x1 := oldX1; 16.21/5.00 x2 := oldX2; 16.21/5.00 TO: 8; 16.21/5.00 16.21/5.00 16.21/5.00 ---------------------------------------- 16.21/5.00 16.21/5.00 (5) T2 (COMPLETE) 16.21/5.00 Found this recurrent set for cutpoint 6: 8 <= oldX3 and 8 <= x1 and 7 <= x2 and oldX0-x0 <= 0 and x0-oldX0 <= 0 and 16 <= x1+oldX3 and x1-x2 <= 1 and x2-x1 <= -1 and 15 <= x1+x2 and 15 <= x2+oldX3 and -x0+7 <= 0 16.21/5.00 16.21/5.00 ---------------------------------------- 16.21/5.00 16.21/5.00 (6) 16.21/5.00 NO 16.21/5.05 EOF