Termination of the given JBC could be disproven:

(0) Obligation:

JBC Problem based on JBC Program:

package simple.complInterv;

public class ComplInterv {

	public static void loop(int i) {
		while (i*i > 9) {
			if (i < 0) {
				i = i-1;
			} else {
				i = i+1;
			}
		}
	}
	
}


package simple.complInterv;

public class Main {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		ComplInterv.loop(args.length);

	}

}

(1) JBCNonTerm (EQUIVALENT transformation)

Reached a loop using the following run:
0:

java.lang.String = serialPersistentFields, CASE_INSENSITIVE_ORDER
[a32(lv_0_0)]
<simple.complInterv.Main.main||0: load ADDR args||args: a32|| ->
	String.serialVersionUID: iconstLong_-6849794470754667710
	String.serialPersistentFields: a34
	String.CASE_INSENSITIVE_ORDER: o17
	String$CaseInsensitiveComparator.serialVersionUID: iconstLong_8575799808933029326
	RuntimeException.serialVersionUID: iconstLong_-7034897190745766939
	Exception.serialVersionUID: iconstLong_-3387516993124229948
	Throwable.serialVersionUID: iconstLong_-3042686055658047285
	a32([java.lang.String...]): length iconst_4
	a34([java.io.ObjectStreamField|]): length iconst_0
	o17!: String$CaseInsensitiveComparator()
Relations: 

1:

java.lang.String = serialPersistentFields, CASE_INSENSITIVE_ORDER
[a32(lv_0_0)]
<simple.complInterv.Main.main||1: arraylength|| - ||a32>
	String.serialVersionUID: iconstLong_-6849794470754667710
	String.serialPersistentFields: a34
	String.CASE_INSENSITIVE_ORDER: o17
	String$CaseInsensitiveComparator.serialVersionUID: iconstLong_8575799808933029326
	RuntimeException.serialVersionUID: iconstLong_-7034897190745766939
	Exception.serialVersionUID: iconstLong_-3387516993124229948
	Throwable.serialVersionUID: iconstLong_-3042686055658047285
	a32([java.lang.String...]): length iconst_4
	a34([java.io.ObjectStreamField|]): length iconst_0
	o17!: String$CaseInsensitiveComparator()
Relations: 

2:

java.lang.String = serialPersistentFields, CASE_INSENSITIVE_ORDER
[a32(lv_0_0)]
<simple.complInterv.Main.main||2: simple.complInterv.ComplInterv.loop(I)V|| - ||iconst_4>
	String.serialVersionUID: iconstLong_-6849794470754667710
	String.serialPersistentFields: a34
	String.CASE_INSENSITIVE_ORDER: o17
	String$CaseInsensitiveComparator.serialVersionUID: iconstLong_8575799808933029326
	RuntimeException.serialVersionUID: iconstLong_-7034897190745766939
	Exception.serialVersionUID: iconstLong_-3387516993124229948
	Throwable.serialVersionUID: iconstLong_-3042686055658047285
	a32([java.lang.String...]): length iconst_4
	a34([java.io.ObjectStreamField|]): length iconst_0
	o17!: String$CaseInsensitiveComparator()
Relations: 

3:

<simple.complInterv.ComplInterv.loop||0: load INT i||i: iconst_4|| ->
java.lang.String = serialPersistentFields, CASE_INSENSITIVE_ORDER
[a32(lv_0_0)]
<simple.complInterv.Main.main||2: simple.complInterv.ComplInterv.loop|| - ||iconst_4>
	String.serialVersionUID: iconstLong_-6849794470754667710
	String.serialPersistentFields: a34
	String.CASE_INSENSITIVE_ORDER: o17
	String$CaseInsensitiveComparator.serialVersionUID: iconstLong_8575799808933029326
	RuntimeException.serialVersionUID: iconstLong_-7034897190745766939
	Exception.serialVersionUID: iconstLong_-3387516993124229948
	Throwable.serialVersionUID: iconstLong_-3042686055658047285
	a32([java.lang.String...]): length iconst_4
	a34([java.io.ObjectStreamField|]): length iconst_0
	o17!: String$CaseInsensitiveComparator()
Relations: 

Start state of loop:

<simple.complInterv.ComplInterv.loop||0: load INT i||i: i15|| ->
java.lang.String = serialPersistentFields, CASE_INSENSITIVE_ORDER
[a6(lv_0_0)]
<simple.complInterv.Main.main||2: simple.complInterv.ComplInterv.loop|| - ||i1>
	String.serialVersionUID: iconstLong_-6849794470754667710
	String.serialPersistentFields: a5
	String.CASE_INSENSITIVE_ORDER: o3
	String$CaseInsensitiveComparator.serialVersionUID: iconstLong_8575799808933029326
	RuntimeException.serialVersionUID: iconstLong_-7034897190745766939
	Exception.serialVersionUID: iconstLong_-3387516993124229948
	Throwable.serialVersionUID: iconstLong_-3042686055658047285
	a5([java.io.ObjectStreamField|]): length iconst_0
	o3!: String$CaseInsensitiveComparator()
	i15: [0,+inf)(1){0,+inf}
	i1: [0,+inf){0,+inf}
	a6([java.lang.String...]): length i1
Relations: 

In the loop head node, references [i15] were interesting.
By SMT, we could prove
((0 <= initial_i15 and 0 <= initial_i1) and (((path1_i25 = (path1_i15 * path1_i15) and path1_i25 = path1_i29 and path1_i32 = (path1_i15 + 1) and path1_i32 = res_i15 and path1_i1 = res_i1 and path1_i15 = initial_i15 and path1_i1 = initial_i1) and (T and path1_i29 > 9 and path1_i15 >= 0)) and ((res_i25 = (res_i15 * res_i15) and res_i25 = res_i29 and res_i32 = (res_i15 + 1)) and !(T and res_i29 > 9 and res_i15 >= 0))))
to be UNSAT. Consequently, the loop will not terminate.

(2) NO