details

property	value
status	complete
benchmark	enno.xml
ran by	Akihisa Yamada
cpu timeout	1200 seconds
wallclock timeout	300 seconds
memory limit	137438953472 bytes
execution host	n052.star.cs.uiowa.edu
space	Rubio_04

run statistics

property	value
solver	AProVE
configuration	certified
runtime (wallclock)	11.1915268898 seconds
cpu usage	38.352439627
max memory	3.912245248E9

stage attributes

key	value
certification-result	CERTIFIED
output-size	257287
starexec-result	WORST_CASE(?,O(n^2))
certification-time	0.1

output

/export/starexec/sandbox2/solver/bin/starexec_run_certified /export/starexec/sandbox2/benchmark/theBenchmark.xml /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- WORST_CASE(?, O(n^2)) <?xml version="1.0" encoding="UTF-8" standalone="no"?><?xml-stylesheet type="text/xsl" href="cpfHTML.xsl"?><certificationProblem xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="cpf.xsd"><input><complexityInput><trsInput><trs><rules><rule><lhs><funapp><name>lt</name><arg><funapp><name>0</name></funapp></arg><arg><funapp><name>s</name><arg><var>X</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>true</name></funapp></rhs></rule><rule><lhs><funapp><name>lt</name><arg><funapp><name>s</name><arg><var>X</var></arg></funapp></arg><arg><funapp><name>0</name></funapp></arg></funapp></lhs><rhs><funapp><name>false</name></funapp></rhs></rule><rule><lhs><funapp><name>lt</name><arg><funapp><name>s</name><arg><var>X</var></arg></funapp></arg><arg><funapp><name>s</name><arg><var>Y</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>lt</name><arg><var>X</var></arg><arg><var>Y</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>append</name><arg><funapp><name>nil</name></funapp></arg><arg><var>Y</var></arg></funapp></lhs><rhs><var>Y</var></rhs></rule><rule><lhs><funapp><name>append</name><arg><funapp><name>add</name><arg><var>N</var></arg><arg><var>X</var></arg></funapp></arg><arg><var>Y</var></arg></funapp></lhs><rhs><funapp><name>add</name><arg><var>N</var></arg><arg><funapp><name>append</name><arg><var>X</var></arg><arg><var>Y</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>split</name><arg><var>N</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>nil</name></funapp></arg><arg><funapp><name>nil</name></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>split</name><arg><var>N</var></arg><arg><funapp><name>add</name><arg><var>M</var></arg><arg><var>Y</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>f_1</name><arg><funapp><name>split</name><arg><var>N</var></arg><arg><var>Y</var></arg></funapp></arg><arg><var>N</var></arg><arg><var>M</var></arg><arg><var>Y</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_1</name><arg><funapp><name>pair</name><arg><var>X</var></arg><arg><var>Z</var></arg></funapp></arg><arg><var>N</var></arg><arg><var>M</var></arg><arg><var>Y</var></arg></funapp></lhs><rhs><funapp><name>f_2</name><arg><funapp><name>lt</name><arg><var>N</var></arg><arg><var>M</var></arg></funapp></arg><arg><var>N</var></arg><arg><var>M</var></arg><arg><var>Y</var></arg><arg><var>X</var></arg><arg><var>Z</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_2</name><arg><funapp><name>true</name></funapp></arg><arg><var>N</var></arg><arg><var>M</var></arg><arg><var>Y</var></arg><arg><var>X</var></arg><arg><var>Z</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><var>X</var></arg><arg><funapp><name>add</name><arg><var>M</var></arg><arg><var>Z</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_2</name><arg><funapp><name>false</name></funapp></arg><arg><var>N</var></arg><arg><var>M</var></arg><arg><var>Y</var></arg><arg><var>X</var></arg><arg><var>Z</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>add</name><arg><var>M</var></arg><arg><var>X</var></arg></funapp></arg><arg><var>Z</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>qsort</name><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>nil</name></funapp></rhs></rule><rule><lhs><funapp><name>qsort</name><arg><funapp><name>add</name><arg><var>N</var></arg><arg><var>X</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>f_3</name><arg><funapp><name>split</name><arg><var>N</var></arg><arg><var>X</var></arg></funapp></arg><arg><var>N</var></arg><arg><var>X</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_3</name><arg><funapp><name>pair</name><arg><var>Y</var></arg><arg><var>Z</var></arg></funapp></arg><arg><var>N</var></arg><arg><var>X</var></arg></funapp></lhs><rhs><funapp><name>append</name><arg><funapp><name>qsort</name><arg><var>Y</var></arg></funapp></arg><arg><funapp><name>add</name><arg><var>X</var></arg><arg><funapp><name>qsort</name><arg><var>Z</var></arg></funapp></arg></funapp></arg></funapp></rhs></rule></rules></trs><strategy><innermost/></strategy></trsInput><runtimeComplexity><signature><symbol><name>0</name><arity>0</arity></symbol><symbol><name>s</name><arity>1</arity></symbol><symbol><name>true</name><arity>0</arity></symbol><symbol><name>false</name><arity>0</arity></symbol><symbol><name>nil</name><arity>0</arity></symbol><symbol><name>add</name><arity>2</arity></symbol><symbol><name>pair</name><arity>2</arity></symbol></signature><signature><symbol><name>lt</name><arity>2</arity></symbol><symbol><name>append</name><arity>2</arity></symbol><symbol><name>split</name><arity>2</arity></symbol><symbol><name>f_1</name><arity>4</arity></symbol><symbol><name>f_2</name><arity>6</arity></symbol><symbol><name>qsort</name><arity>1</arity></symbol><symbol><name>f_3</name><arity>3</arity></symbol></signature></runtimeComplexity><polynomial>2</polynomial></complexityInput></input><cpfVersion>2.1</cpfVersion><proof><complexityProof><dtTransformation><strictDTs><ruleWithDT><rule><lhs><funapp><name>lt</name><arg><funapp><name>0</name></funapp></arg><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>true</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>0</name></funapp></arg><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c</name></funapp></rhs></rule></ruleWithDT><ruleWithDT><rule><lhs><funapp><name>lt</name><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>0</name></funapp></arg></funapp></lhs><rhs><funapp><name>false</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>0</name></funapp></arg></funapp></lhs><rhs><funapp><name>c1</name></funapp></rhs></rule></ruleWithDT><ruleWithDT><rule><lhs><funapp><name>lt</name><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>s</name><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>lt</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>s</name><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c2</name><arg><funapp><sharp><name>lt</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule></ruleWithDT><ruleWithDT><rule><lhs><funapp><name>append</name><arg><funapp><name>nil</name></funapp></arg><arg><var>z0</var></arg></funapp></lhs><rhs><var>z0</var></rhs></rule><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>nil</name></funapp></arg><arg><var>z0</var></arg></funapp></lhs><rhs><funapp><name>c3</name></funapp></rhs></rule></ruleWithDT><ruleWithDT><rule><lhs><funapp><name>append</name><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg></funapp></lhs><rhs><funapp><name>add</name><arg><var>z0</var></arg><arg><funapp><name>append</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg></funapp></lhs><rhs><funapp><name>c4</name><arg><funapp><sharp><name>append</name></sharp><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule></ruleWithDT><ruleWithDT><rule><lhs><funapp><name>split</name><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>nil</name></funapp></arg><arg><funapp><name>nil</name></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c5</name></funapp></rhs></rule></ruleWithDT><ruleWithDT><rule><lhs><funapp><name>split</name><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>f_1</name><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c6</name><arg><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule></ruleWithDT><ruleWithDT><rule><lhs><funapp><name>f_1</name><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>f_2</name><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c7</name><arg><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>lt</name></sharp><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg></funapp></rhs></rule></ruleWithDT><ruleWithDT><rule><lhs><funapp><name>f_2</name><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><var>z3</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z4</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c8</name></funapp></rhs></rule></ruleWithDT><ruleWithDT><rule><lhs><funapp><name>f_2</name><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z4</var></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c9</name></funapp></rhs></rule></ruleWithDT><ruleWithDT><rule><lhs><funapp><name>qsort</name><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>nil</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c10</name></funapp></rhs></rule></ruleWithDT><ruleWithDT><rule><lhs><funapp><name>qsort</name><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>f_3</name><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c11</name><arg><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule></ruleWithDT><ruleWithDT><rule><lhs><funapp><name>f_3</name><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></lhs><rhs><funapp><name>append</name><arg><funapp><name>qsort</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>add</name><arg><var>z3</var></arg><arg><funapp><name>qsort</name><arg><var>z1</var></arg></funapp></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></lhs><rhs><funapp><name>c12</name><arg><funapp><sharp><name>append</name></sharp><arg><funapp><name>qsort</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>add</name><arg><var>z3</var></arg><arg><funapp><name>qsort</name><arg><var>z1</var></arg></funapp></arg></funapp></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z0</var></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule></ruleWithDT></strictDTs><weakDTs/><innermostLhss><funapp><sharp><name>lt</name></sharp><arg><funapp><name>0</name></funapp></arg><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg></funapp><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>0</name></funapp></arg></funapp><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>s</name><arg><var>z1</var></arg></funapp></arg></funapp><funapp><sharp><name>append</name></sharp><arg><funapp><name>nil</name></funapp></arg><arg><var>z0</var></arg></funapp><funapp><sharp><name>append</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg></funapp><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>nil</name></funapp></arg></funapp><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></innermostLhss><complexityProof><ruleShifting><orderingConstraintProof><redPair><interpretation><type><polynomial><domain><naturals/></domain><degree>1</degree></polynomial></type><interpret><name>c</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c1</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c2</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c3</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c4</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c5</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c6</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c7</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c8</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c9</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c10</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c11</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c12</name><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>lt</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>append</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>split</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_1</name><arity>4</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_2</name><arity>6</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>5</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>6</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>qsort</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_3</name><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>lt</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>append</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>split</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_1</name></sharp><arity>4</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_2</name></sharp><arity>6</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>qsort</name></sharp><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_3</name></sharp><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>nil</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>add</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>pair</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>0</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>s</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>true</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>false</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret></interpretation></redPair></orderingConstraintProof><trs><rules><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>nil</name></funapp></arg><arg><var>z0</var></arg></funapp></lhs><rhs><funapp><name>c3</name></funapp></rhs></rule></rules></trs><usableRules><rules><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>0</name></funapp></arg><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>0</name></funapp></arg></funapp></lhs><rhs><funapp><name>c1</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>s</name><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c2</name><arg><funapp><sharp><name>lt</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>nil</name></funapp></arg><arg><var>z0</var></arg></funapp></lhs><rhs><funapp><name>c3</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg></funapp></lhs><rhs><funapp><name>c4</name><arg><funapp><sharp><name>append</name></sharp><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c5</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c6</name><arg><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c7</name><arg><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>lt</name></sharp><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c8</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c9</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c10</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c11</name><arg><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></lhs><rhs><funapp><name>c12</name><arg><funapp><sharp><name>append</name></sharp><arg><funapp><name>qsort</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>add</name><arg><var>z3</var></arg><arg><funapp><name>qsort</name><arg><var>z1</var></arg></funapp></arg></funapp></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z0</var></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_1</name><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>f_2</name><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_2</name><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><var>z3</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z4</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>split</name><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>nil</name></funapp></arg><arg><funapp><name>nil</name></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_2</name><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z4</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>split</name><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>f_1</name><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></rhs></rule></rules></usableRules><complexityProof><ruleShifting><orderingConstraintProof><redPair><interpretation><type><polynomial><domain><naturals/></domain><degree>1</degree></polynomial></type><interpret><name>c</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c1</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c2</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c3</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c4</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c5</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c6</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c7</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c8</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c9</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c10</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c11</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c12</name><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>lt</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>append</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>split</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_1</name><arity>4</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_2</name><arity>6</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>5</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>6</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>qsort</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_3</name><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>lt</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>append</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>split</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_1</name></sharp><arity>4</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_2</name></sharp><arity>6</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>qsort</name></sharp><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_3</name></sharp><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>nil</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>add</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>pair</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>0</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>s</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>true</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>false</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret></interpretation></redPair></orderingConstraintProof><trs><rules><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c5</name></funapp></rhs></rule></rules></trs><usableRules><rules><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>0</name></funapp></arg><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>0</name></funapp></arg></funapp></lhs><rhs><funapp><name>c1</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>s</name><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c2</name><arg><funapp><sharp><name>lt</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>nil</name></funapp></arg><arg><var>z0</var></arg></funapp></lhs><rhs><funapp><name>c3</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg></funapp></lhs><rhs><funapp><name>c4</name><arg><funapp><sharp><name>append</name></sharp><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c5</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c6</name><arg><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c7</name><arg><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>lt</name></sharp><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c8</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c9</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c10</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c11</name><arg><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></lhs><rhs><funapp><name>c12</name><arg><funapp><sharp><name>append</name></sharp><arg><funapp><name>qsort</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>add</name><arg><var>z3</var></arg><arg><funapp><name>qsort</name><arg><var>z1</var></arg></funapp></arg></funapp></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z0</var></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_1</name><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>f_2</name><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_2</name><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><var>z3</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z4</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>split</name><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>nil</name></funapp></arg><arg><funapp><name>nil</name></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_2</name><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z4</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>split</name><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>f_1</name><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></rhs></rule></rules></usableRules><complexityProof><ruleShifting><orderingConstraintProof><redPair><interpretation><type><polynomial><domain><naturals/></domain><degree>1</degree></polynomial></type><interpret><name>c</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c1</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c2</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c3</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c4</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c5</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c6</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c7</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c8</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c9</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c10</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c11</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c12</name><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>lt</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>append</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>split</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_1</name><arity>4</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_2</name><arity>6</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>5</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>6</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>qsort</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_3</name><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>lt</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>append</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>split</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_1</name></sharp><arity>4</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_2</name></sharp><arity>6</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>qsort</name></sharp><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_3</name></sharp><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>nil</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>add</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>pair</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>0</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>s</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>true</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>false</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret></interpretation></redPair></orderingConstraintProof><trs><rules><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c11</name><arg><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule></rules></trs><usableRules><rules><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>0</name></funapp></arg><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>0</name></funapp></arg></funapp></lhs><rhs><funapp><name>c1</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>s</name><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c2</name><arg><funapp><sharp><name>lt</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>nil</name></funapp></arg><arg><var>z0</var></arg></funapp></lhs><rhs><funapp><name>c3</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg></funapp></lhs><rhs><funapp><name>c4</name><arg><funapp><sharp><name>append</name></sharp><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c5</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c6</name><arg><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c7</name><arg><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>lt</name></sharp><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c8</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c9</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c10</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c11</name><arg><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></lhs><rhs><funapp><name>c12</name><arg><funapp><sharp><name>append</name></sharp><arg><funapp><name>qsort</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>add</name><arg><var>z3</var></arg><arg><funapp><name>qsort</name><arg><var>z1</var></arg></funapp></arg></funapp></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z0</var></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_1</name><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>f_2</name><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_2</name><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><var>z3</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z4</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>split</name><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>nil</name></funapp></arg><arg><funapp><name>nil</name></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_2</name><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z4</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>split</name><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>f_1</name><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></rhs></rule></rules></usableRules><complexityProof><ruleShifting><orderingConstraintProof><redPair><interpretation><type><polynomial><domain><naturals/></domain><degree>1</degree></polynomial></type><interpret><name>c</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c1</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c2</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c3</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c4</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c5</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c6</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c7</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c8</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c9</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c10</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c11</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c12</name><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>lt</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>append</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>split</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_1</name><arity>4</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_2</name><arity>6</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>5</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>6</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>qsort</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_3</name><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>lt</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>append</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>split</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_1</name></sharp><arity>4</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_2</name></sharp><arity>6</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>qsort</name></sharp><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_3</name></sharp><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>nil</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>add</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>pair</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>0</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>s</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>true</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>false</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret></interpretation></redPair></orderingConstraintProof><trs><rules><rule><lhs><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></lhs><rhs><funapp><name>c12</name><arg><funapp><sharp><name>append</name></sharp><arg><funapp><name>qsort</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>add</name><arg><var>z3</var></arg><arg><funapp><name>qsort</name><arg><var>z1</var></arg></funapp></arg></funapp></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z0</var></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule></rules></trs><usableRules><rules><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>0</name></funapp></arg><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>0</name></funapp></arg></funapp></lhs><rhs><funapp><name>c1</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>s</name><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c2</name><arg><funapp><sharp><name>lt</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>nil</name></funapp></arg><arg><var>z0</var></arg></funapp></lhs><rhs><funapp><name>c3</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg></funapp></lhs><rhs><funapp><name>c4</name><arg><funapp><sharp><name>append</name></sharp><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c5</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c6</name><arg><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c7</name><arg><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>lt</name></sharp><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c8</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c9</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c10</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c11</name><arg><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></lhs><rhs><funapp><name>c12</name><arg><funapp><sharp><name>append</name></sharp><arg><funapp><name>qsort</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>add</name><arg><var>z3</var></arg><arg><funapp><name>qsort</name><arg><var>z1</var></arg></funapp></arg></funapp></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z0</var></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_1</name><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>f_2</name><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_2</name><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><var>z3</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z4</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>split</name><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>nil</name></funapp></arg><arg><funapp><name>nil</name></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_2</name><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z4</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>split</name><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>f_1</name><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></rhs></rule></rules></usableRules><complexityProof><ruleShifting><orderingConstraintProof><redPair><interpretation><type><polynomial><domain><naturals/></domain><degree>1</degree></polynomial></type><interpret><name>c</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c1</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c2</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c3</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c4</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c5</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c6</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c7</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c8</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c9</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c10</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c11</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c12</name><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>lt</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>append</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>split</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_1</name><arity>4</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_2</name><arity>6</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>5</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>6</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>qsort</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_3</name><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>lt</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>append</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>split</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_1</name></sharp><arity>4</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_2</name></sharp><arity>6</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>qsort</name></sharp><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_3</name></sharp><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>nil</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>add</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>pair</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>0</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>s</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>true</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>false</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret></interpretation></redPair></orderingConstraintProof><trs><rules><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c10</name></funapp></rhs></rule></rules></trs><usableRules><rules><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>0</name></funapp></arg><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>0</name></funapp></arg></funapp></lhs><rhs><funapp><name>c1</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>s</name><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c2</name><arg><funapp><sharp><name>lt</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>nil</name></funapp></arg><arg><var>z0</var></arg></funapp></lhs><rhs><funapp><name>c3</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg></funapp></lhs><rhs><funapp><name>c4</name><arg><funapp><sharp><name>append</name></sharp><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c5</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c6</name><arg><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c7</name><arg><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>lt</name></sharp><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c8</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c9</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c10</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c11</name><arg><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></lhs><rhs><funapp><name>c12</name><arg><funapp><sharp><name>append</name></sharp><arg><funapp><name>qsort</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>add</name><arg><var>z3</var></arg><arg><funapp><name>qsort</name><arg><var>z1</var></arg></funapp></arg></funapp></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z0</var></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_1</name><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>f_2</name><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_2</name><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><var>z3</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z4</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>split</name><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>nil</name></funapp></arg><arg><funapp><name>nil</name></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_2</name><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z4</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>split</name><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>f_1</name><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></rhs></rule></rules></usableRules><complexityProof><ruleShifting><orderingConstraintProof><redPair><interpretation><type><polynomial><domain><naturals/></domain><degree>2</degree></polynomial></type><interpret><name>c</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c1</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c2</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c3</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c4</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c5</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c6</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c7</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c8</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c9</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c10</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c11</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c12</name><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>lt</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>append</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>split</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_1</name><arity>4</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_2</name><arity>6</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>5</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>6</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>qsort</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_3</name><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>lt</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>append</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>split</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_1</name></sharp><arity>4</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_2</name></sharp><arity>6</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>qsort</name></sharp><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_3</name></sharp><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>nil</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>add</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>pair</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>0</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>s</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>true</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>false</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret></interpretation></redPair></orderingConstraintProof><trs><rules><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>s</name><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c2</name><arg><funapp><sharp><name>lt</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule></rules></trs><usableRules><rules><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>0</name></funapp></arg><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>0</name></funapp></arg></funapp></lhs><rhs><funapp><name>c1</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>s</name><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c2</name><arg><funapp><sharp><name>lt</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>nil</name></funapp></arg><arg><var>z0</var></arg></funapp></lhs><rhs><funapp><name>c3</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg></funapp></lhs><rhs><funapp><name>c4</name><arg><funapp><sharp><name>append</name></sharp><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c5</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c6</name><arg><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c7</name><arg><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>lt</name></sharp><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c8</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c9</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c10</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c11</name><arg><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></lhs><rhs><funapp><name>c12</name><arg><funapp><sharp><name>append</name></sharp><arg><funapp><name>qsort</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>add</name><arg><var>z3</var></arg><arg><funapp><name>qsort</name><arg><var>z1</var></arg></funapp></arg></funapp></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z0</var></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_1</name><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>f_2</name><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_2</name><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><var>z3</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z4</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>split</name><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>nil</name></funapp></arg><arg><funapp><name>nil</name></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_2</name><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z4</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>split</name><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>f_1</name><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></rhs></rule></rules></usableRules><complexityProof><ruleShifting><orderingConstraintProof><redPair><interpretation><type><polynomial><domain><naturals/></domain><degree>2</degree></polynomial></type><interpret><name>c</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c1</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c2</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c3</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c4</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c5</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c6</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c7</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c8</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c9</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c10</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c11</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c12</name><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>lt</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>append</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>split</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_1</name><arity>4</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_2</name><arity>6</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>5</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>6</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>qsort</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_3</name><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>lt</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>append</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>split</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_1</name></sharp><arity>4</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_2</name></sharp><arity>6</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>qsort</name></sharp><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_3</name></sharp><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>nil</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>add</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>pair</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>0</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>s</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>true</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>false</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret></interpretation></redPair></orderingConstraintProof><trs><rules><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>0</name></funapp></arg></funapp></lhs><rhs><funapp><name>c1</name></funapp></rhs></rule></rules></trs><usableRules><rules><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>0</name></funapp></arg><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>0</name></funapp></arg></funapp></lhs><rhs><funapp><name>c1</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>s</name><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c2</name><arg><funapp><sharp><name>lt</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>nil</name></funapp></arg><arg><var>z0</var></arg></funapp></lhs><rhs><funapp><name>c3</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg></funapp></lhs><rhs><funapp><name>c4</name><arg><funapp><sharp><name>append</name></sharp><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c5</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c6</name><arg><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c7</name><arg><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>lt</name></sharp><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c8</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c9</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c10</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c11</name><arg><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></lhs><rhs><funapp><name>c12</name><arg><funapp><sharp><name>append</name></sharp><arg><funapp><name>qsort</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>add</name><arg><var>z3</var></arg><arg><funapp><name>qsort</name><arg><var>z1</var></arg></funapp></arg></funapp></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z0</var></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_1</name><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>f_2</name><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_2</name><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><var>z3</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z4</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>split</name><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>nil</name></funapp></arg><arg><funapp><name>nil</name></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_2</name><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z4</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>split</name><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>f_1</name><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></rhs></rule></rules></usableRules><complexityProof><ruleShifting><orderingConstraintProof><redPair><interpretation><type><polynomial><domain><naturals/></domain><degree>2</degree></polynomial></type><interpret><name>c</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c1</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c2</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c3</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c4</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c5</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c6</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c7</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c8</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c9</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c10</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c11</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c12</name><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>lt</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>append</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>split</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_1</name><arity>4</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_2</name><arity>6</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>5</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>6</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>qsort</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_3</name><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>lt</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>append</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>split</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_1</name></sharp><arity>4</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_2</name></sharp><arity>6</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>qsort</name></sharp><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_3</name></sharp><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>nil</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>add</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>pair</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>0</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>s</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>true</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>false</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret></interpretation></redPair></orderingConstraintProof><trs><rules><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>0</name></funapp></arg><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c</name></funapp></rhs></rule></rules></trs><usableRules><rules><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>0</name></funapp></arg><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>0</name></funapp></arg></funapp></lhs><rhs><funapp><name>c1</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>s</name><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c2</name><arg><funapp><sharp><name>lt</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>nil</name></funapp></arg><arg><var>z0</var></arg></funapp></lhs><rhs><funapp><name>c3</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg></funapp></lhs><rhs><funapp><name>c4</name><arg><funapp><sharp><name>append</name></sharp><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c5</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c6</name><arg><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c7</name><arg><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>lt</name></sharp><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c8</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c9</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c10</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c11</name><arg><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></lhs><rhs><funapp><name>c12</name><arg><funapp><sharp><name>append</name></sharp><arg><funapp><name>qsort</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>add</name><arg><var>z3</var></arg><arg><funapp><name>qsort</name><arg><var>z1</var></arg></funapp></arg></funapp></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z0</var></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_1</name><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>f_2</name><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_2</name><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><var>z3</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z4</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>split</name><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>nil</name></funapp></arg><arg><funapp><name>nil</name></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_2</name><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z4</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>split</name><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>f_1</name><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></rhs></rule></rules></usableRules><complexityProof><ruleShifting><orderingConstraintProof><redPair><interpretation><type><polynomial><domain><naturals/></domain><degree>2</degree></polynomial></type><interpret><name>c</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c1</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c2</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c3</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c4</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c5</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c6</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c7</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c8</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c9</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c10</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c11</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c12</name><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>lt</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>append</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>split</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_1</name><arity>4</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_2</name><arity>6</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>5</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>6</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>qsort</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_3</name><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>lt</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>append</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>split</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_1</name></sharp><arity>4</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_2</name></sharp><arity>6</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>qsort</name></sharp><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_3</name></sharp><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>nil</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>add</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>pair</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>0</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>s</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>true</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>false</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret></interpretation></redPair></orderingConstraintProof><trs><rules><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c9</name></funapp></rhs></rule></rules></trs><usableRules><rules><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>0</name></funapp></arg><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>0</name></funapp></arg></funapp></lhs><rhs><funapp><name>c1</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>s</name><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c2</name><arg><funapp><sharp><name>lt</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>nil</name></funapp></arg><arg><var>z0</var></arg></funapp></lhs><rhs><funapp><name>c3</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg></funapp></lhs><rhs><funapp><name>c4</name><arg><funapp><sharp><name>append</name></sharp><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c5</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c6</name><arg><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c7</name><arg><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>lt</name></sharp><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c8</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c9</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c10</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c11</name><arg><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></lhs><rhs><funapp><name>c12</name><arg><funapp><sharp><name>append</name></sharp><arg><funapp><name>qsort</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>add</name><arg><var>z3</var></arg><arg><funapp><name>qsort</name><arg><var>z1</var></arg></funapp></arg></funapp></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z0</var></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_1</name><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>f_2</name><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_2</name><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><var>z3</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z4</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>split</name><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>nil</name></funapp></arg><arg><funapp><name>nil</name></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>lt</name><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>0</name></funapp></arg></funapp></lhs><rhs><funapp><name>false</name></funapp></rhs></rule><rule><lhs><funapp><name>f_2</name><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z4</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>split</name><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>f_1</name><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>lt</name><arg><funapp><name>0</name></funapp></arg><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>true</name></funapp></rhs></rule><rule><lhs><funapp><name>lt</name><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>s</name><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>lt</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></rhs></rule></rules></usableRules><complexityProof><ruleShifting><orderingConstraintProof><redPair><interpretation><type><polynomial><domain><naturals/></domain><degree>2</degree></polynomial></type><interpret><name>c</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c1</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c2</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c3</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c4</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c5</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c6</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c7</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c8</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c9</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c10</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c11</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c12</name><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>lt</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>append</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>split</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_1</name><arity>4</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_2</name><arity>6</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>5</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>6</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>qsort</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_3</name><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>lt</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>append</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>split</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_1</name></sharp><arity>4</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_2</name></sharp><arity>6</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>qsort</name></sharp><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_3</name></sharp><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>nil</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>add</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>pair</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>0</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>s</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>true</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>false</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret></interpretation></redPair></orderingConstraintProof><trs><rules><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c8</name></funapp></rhs></rule></rules></trs><usableRules><rules><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>0</name></funapp></arg><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>0</name></funapp></arg></funapp></lhs><rhs><funapp><name>c1</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>s</name><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c2</name><arg><funapp><sharp><name>lt</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>nil</name></funapp></arg><arg><var>z0</var></arg></funapp></lhs><rhs><funapp><name>c3</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg></funapp></lhs><rhs><funapp><name>c4</name><arg><funapp><sharp><name>append</name></sharp><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c5</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c6</name><arg><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c7</name><arg><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>lt</name></sharp><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c8</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c9</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c10</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c11</name><arg><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></lhs><rhs><funapp><name>c12</name><arg><funapp><sharp><name>append</name></sharp><arg><funapp><name>qsort</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>add</name><arg><var>z3</var></arg><arg><funapp><name>qsort</name><arg><var>z1</var></arg></funapp></arg></funapp></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z0</var></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_1</name><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>f_2</name><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_2</name><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><var>z3</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z4</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>split</name><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>nil</name></funapp></arg><arg><funapp><name>nil</name></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>lt</name><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>0</name></funapp></arg></funapp></lhs><rhs><funapp><name>false</name></funapp></rhs></rule><rule><lhs><funapp><name>f_2</name><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z4</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>split</name><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>f_1</name><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>lt</name><arg><funapp><name>0</name></funapp></arg><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>true</name></funapp></rhs></rule><rule><lhs><funapp><name>lt</name><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>s</name><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>lt</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></rhs></rule></rules></usableRules><complexityProof><ruleShifting><orderingConstraintProof><redPair><interpretation><type><polynomial><domain><naturals/></domain><degree>2</degree></polynomial></type><interpret><name>c</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c1</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c2</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c3</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c4</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c5</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c6</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c7</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c8</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c9</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c10</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c11</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c12</name><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>lt</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>append</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>split</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_1</name><arity>4</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_2</name><arity>6</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>5</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>6</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>qsort</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_3</name><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>lt</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>append</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>split</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_1</name></sharp><arity>4</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_2</name></sharp><arity>6</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>qsort</name></sharp><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_3</name></sharp><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>nil</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>add</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>pair</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>0</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>s</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>true</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>false</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret></interpretation></redPair></orderingConstraintProof><trs><rules><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c6</name><arg><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c7</name><arg><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>lt</name></sharp><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg></funapp></rhs></rule></rules></trs><usableRules><rules><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>0</name></funapp></arg><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>0</name></funapp></arg></funapp></lhs><rhs><funapp><name>c1</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>s</name><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c2</name><arg><funapp><sharp><name>lt</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>nil</name></funapp></arg><arg><var>z0</var></arg></funapp></lhs><rhs><funapp><name>c3</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg></funapp></lhs><rhs><funapp><name>c4</name><arg><funapp><sharp><name>append</name></sharp><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c5</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c6</name><arg><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c7</name><arg><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>lt</name></sharp><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c8</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c9</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c10</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c11</name><arg><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></lhs><rhs><funapp><name>c12</name><arg><funapp><sharp><name>append</name></sharp><arg><funapp><name>qsort</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>add</name><arg><var>z3</var></arg><arg><funapp><name>qsort</name><arg><var>z1</var></arg></funapp></arg></funapp></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z0</var></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_1</name><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>f_2</name><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_2</name><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><var>z3</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z4</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>split</name><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>nil</name></funapp></arg><arg><funapp><name>nil</name></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_2</name><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z4</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>split</name><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>f_1</name><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></rhs></rule></rules></usableRules><complexityProof><ruleShifting><orderingConstraintProof><redPair><interpretation><type><polynomial><domain><naturals/></domain><degree>2</degree></polynomial></type><interpret><name>c</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c1</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c2</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c3</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c4</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c5</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c6</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c7</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c8</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c9</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c10</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c11</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>c12</name><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>3</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>lt</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>append</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>split</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_1</name><arity>4</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_2</name><arity>6</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>5</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>6</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>qsort</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>f_3</name><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>lt</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>append</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>split</name></sharp><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_1</name></sharp><arity>4</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_2</name></sharp><arity>6</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>qsort</name></sharp><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><sharp><name>f_3</name></sharp><arity>3</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>nil</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>add</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>pair</name><arity>2</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>1</variable></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial><polynomial><product><polynomial><coefficient><integer>1</integer></coefficient></polynomial><polynomial><variable>2</variable></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>0</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>2</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>s</name><arity>1</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>true</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret><interpret><name>false</name><arity>0</arity><polynomial><sum><polynomial><product><polynomial><coefficient><integer>0</integer></coefficient></polynomial></product></polynomial></sum></polynomial></interpret></interpretation></redPair></orderingConstraintProof><trs><rules><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg></funapp></lhs><rhs><funapp><name>c4</name><arg><funapp><sharp><name>append</name></sharp><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule></rules></trs><usableRules><rules><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>0</name></funapp></arg><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>0</name></funapp></arg></funapp></lhs><rhs><funapp><name>c1</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>lt</name></sharp><arg><funapp><name>s</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>s</name><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c2</name><arg><funapp><sharp><name>lt</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>nil</name></funapp></arg><arg><var>z0</var></arg></funapp></lhs><rhs><funapp><name>c3</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>append</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg></funapp></lhs><rhs><funapp><name>c4</name><arg><funapp><sharp><name>append</name></sharp><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c5</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c6</name><arg><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_1</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c7</name><arg><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>lt</name></sharp><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c8</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_2</name></sharp><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>c9</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>c10</name></funapp></rhs></rule><rule><lhs><funapp><sharp><name>qsort</name></sharp><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>c11</name><arg><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><funapp><sharp><name>split</name></sharp><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><sharp><name>f_3</name></sharp><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></lhs><rhs><funapp><name>c12</name><arg><funapp><sharp><name>append</name></sharp><arg><funapp><name>qsort</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>add</name><arg><var>z3</var></arg><arg><funapp><name>qsort</name><arg><var>z1</var></arg></funapp></arg></funapp></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z0</var></arg></funapp></arg><arg><funapp><sharp><name>qsort</name></sharp><arg><var>z1</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_1</name><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>f_2</name><arg><funapp><name>lt</name><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_2</name><arg><funapp><name>true</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><var>z3</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z4</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>split</name><arg><var>z0</var></arg><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>nil</name></funapp></arg><arg><funapp><name>nil</name></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>f_3</name><arg><funapp><name>pair</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg><arg><var>z3</var></arg></funapp></lhs><rhs><funapp><name>append</name><arg><funapp><name>qsort</name><arg><var>z0</var></arg></funapp></arg><arg><funapp><name>add</name><arg><var>z3</var></arg><arg><funapp><name>qsort</name><arg><var>z1</var></arg></funapp></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>qsort</name><arg><funapp><name>nil</name></funapp></arg></funapp></lhs><rhs><funapp><name>nil</name></funapp></rhs></rule><rule><lhs><funapp><name>f_2</name><arg><funapp><name>false</name></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg><arg><var>z3</var></arg><arg><var>z4</var></arg></funapp></lhs><rhs><funapp><name>pair</name><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z3</var></arg></funapp></arg><arg><var>z4</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>append</name><arg><funapp><name>nil</name></funapp></arg><arg><var>z0</var></arg></funapp></lhs><rhs><var>z0</var></rhs></rule><rule><lhs><funapp><name>split</name><arg><var>z0</var></arg><arg><funapp><name>add</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>f_1</name><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z2</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></rhs></rule><rule><lhs><funapp><name>append</name><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z2</var></arg></funapp></lhs><rhs><funapp><name>add</name><arg><var>z0</var></arg><arg><funapp><name>append</name><arg><var>z1</var></arg><arg><var>z2</var></arg></funapp></arg></funapp></rhs></rule><rule><lhs><funapp><name>qsort</name><arg><funapp><name>add</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg></funapp></lhs><rhs><funapp><name>f_3</name><arg><funapp><name>split</name><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></arg><arg><var>z0</var></arg><arg><var>z1</var></arg></funapp></rhs></rule></rules></usableRules><complexityProof><rIsEmpty/></complexityProof></ruleShifting></complexityProof></ruleShifting></complexityProof></ruleShifting></complexityProof></ruleShifting></complexityProof></ruleShifting></complexityProof></ruleShifting></complexityProof></ruleShifting></complexityProof></ruleShifting></complexityProof></ruleShifting></complexityProof></ruleShifting></complexityProof></ruleShifting></complexityProof></ruleShifting></complexityProof></dtTransformation></complexityProof></proof><origin><proofOrigin><tool><name>AProVE</name><version>AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty </version><strategy>Statistics for single proof: 100.00 % (14 real / 0 unknown / 0 assumptions / 14 total proof steps)</strategy><url>http://aprove.informatik.rwth-aachen.de</url></tool><toolUser><firstName>John</firstName><lastName>Doe</lastName></toolUser></proofOrigin><inputOrigin/></origin></certificationProblem> popout

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