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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE why3session PUBLIC "-//Why3//proof session v5//EN"
"https://www.why3.org/why3session.dtd">
<why3session shape_version="6">
<prover id="0" name="Alt-Ergo" version="2.4.0" timelimit="1" steplimit="0" memlimit="1000"/>
<prover id="1" name="CVC4" version="1.8" timelimit="1" steplimit="0" memlimit="1000"/>
<prover id="2" name="CVC5" version="1.0.2" timelimit="1" steplimit="0" memlimit="1000"/>
<prover id="3" name="Z3" version="4.8.10" timelimit="1" steplimit="0" memlimit="1000"/>
<file format="whyml" proved="true">
<path name=".."/><path name="search.mlw"/>
<theory name="Path" proved="true">
<goal name="path_inversion'vc" expl="VC for path_inversion" proved="true">
<transf name="induction_pr" proved="true" >
<goal name="path_inversion'vc.0" expl="VC for path_inversion" proved="true">
<proof prover="3"><result status="valid" time="0.032249" steps="5422"/></proof>
</goal>
<goal name="path_inversion'vc.1" expl="VC for path_inversion" proved="true">
<proof prover="3"><result status="valid" time="0.044416" steps="6373"/></proof>
</goal>
<goal name="path_inversion'vc.2" expl="VC for path_inversion" proved="true">
<proof prover="2"><result status="valid" time="0.047658" steps="4123"/></proof>
</goal>
</transf>
</goal>
<goal name="path_length'vc" expl="VC for path_length" proved="true">
<proof prover="3"><result status="valid" time="0.122809" steps="6435"/></proof>
</goal>
<goal name="path_first'vc" expl="VC for path_first" proved="true">
<proof prover="3"><result status="valid" time="0.038741" steps="12893"/></proof>
</goal>
<goal name="path_inversion_right'vc" expl="VC for path_inversion_right" proved="true">
<proof prover="3"><result status="valid" time="0.071913" steps="20300"/></proof>
</goal>
<goal name="path_last'vc" expl="VC for path_last" proved="true">
<proof prover="3"><result status="valid" time="0.058092" steps="66391"/></proof>
</goal>
<goal name="shorter_path'vc" expl="VC for shorter_path" proved="true">
<proof prover="3"><result status="valid" time="0.051951" steps="27474"/></proof>
</goal>
</theory>
<theory name="Bfs" proved="true">
<goal name="bfs'vc" expl="VC for bfs" proved="true">
<transf name="split_vc" proved="true" >
<goal name="bfs'vc.0" expl="loop invariant init" proved="true">
<proof prover="3"><result status="valid" time="0.023619" steps="3311"/></proof>
</goal>
<goal name="bfs'vc.1" expl="loop invariant init" proved="true">
<proof prover="3"><result status="valid" time="0.046315" steps="39198"/></proof>
</goal>
<goal name="bfs'vc.2" expl="loop invariant init" proved="true">
<proof prover="3"><result status="valid" time="0.047521" steps="40529"/></proof>
</goal>
<goal name="bfs'vc.3" expl="loop invariant init" proved="true">
<proof prover="3"><result status="valid" time="0.044162" steps="40247"/></proof>
</goal>
<goal name="bfs'vc.4" expl="loop invariant init" proved="true">
<proof prover="3"><result status="valid" time="0.038739" steps="6301"/></proof>
</goal>
<goal name="bfs'vc.5" expl="loop invariant init" proved="true">
<proof prover="3"><result status="valid" time="0.020112" steps="3595"/></proof>
</goal>
<goal name="bfs'vc.6" expl="loop invariant init" proved="true">
<proof prover="3"><result status="valid" time="0.021397" steps="3634"/></proof>
</goal>
<goal name="bfs'vc.7" expl="postcondition" proved="true">
<proof prover="3"><result status="valid" time="0.046254" steps="42917"/></proof>
</goal>
<goal name="bfs'vc.8" expl="loop invariant preservation" proved="true">
<proof prover="3"><result status="valid" time="0.060226" steps="53465"/></proof>
</goal>
<goal name="bfs'vc.9" expl="loop invariant preservation" proved="true">
<proof prover="3"><result status="valid" time="0.041998" steps="57925"/></proof>
</goal>
<goal name="bfs'vc.10" expl="loop invariant preservation" proved="true">
<proof prover="3"><result status="valid" time="0.040037" steps="53168"/></proof>
</goal>
<goal name="bfs'vc.11" expl="loop invariant preservation" proved="true">
<proof prover="3"><result status="valid" time="0.045103" steps="47740"/></proof>
</goal>
<goal name="bfs'vc.12" expl="loop invariant preservation" proved="true">
<proof prover="3"><result status="valid" time="0.043727" steps="50795"/></proof>
</goal>
<goal name="bfs'vc.13" expl="loop invariant preservation" proved="true">
<proof prover="3"><result status="valid" time="0.055946" steps="61833"/></proof>
</goal>
<goal name="bfs'vc.14" expl="loop invariant preservation" proved="true">
<proof prover="3"><result status="valid" time="0.040194" steps="50571"/></proof>
</goal>
<goal name="bfs'vc.15" expl="out of loop bounds" proved="true">
<proof prover="3"><result status="valid" time="0.029725" steps="47983"/></proof>
</goal>
<goal name="bfs'vc.16" expl="postcondition" proved="true">
<transf name="case" proved="true" arg1="(path start t n)">
<goal name="bfs'vc.16.0" expl="true case (postcondition)" proved="true">
<transf name="assert" proved="true" arg1="(exists s. path start s p)">
<goal name="bfs'vc.16.0.0" expl="asserted formula" proved="true">
<transf name="apply" proved="true" arg1="shorter_path" arg2="with" arg3="t,n">
<goal name="bfs'vc.16.0.0.0" expl="apply premises" proved="true">
<proof prover="0"><result status="valid" time="0.012880" steps="12"/></proof>
<proof prover="1"><result status="valid" time="0.091121" steps="9185"/></proof>
<proof prover="2"><result status="valid" time="0.110920" steps="5900"/></proof>
<proof prover="3"><result status="valid" time="0.017973" steps="3463"/></proof>
</goal>
<goal name="bfs'vc.16.0.0.1" expl="apply premises" proved="true">
<proof prover="0"><result status="valid" time="0.015100" steps="14"/></proof>
<proof prover="1"><result status="valid" time="0.109160" steps="10088"/></proof>
<proof prover="2"><result status="valid" time="0.129142" steps="6592"/></proof>
<proof prover="3"><result status="valid" time="0.039671" steps="40889"/></proof>
</goal>
</transf>
</goal>
<goal name="bfs'vc.16.0.1" expl="true case (postcondition)" proved="true">
<proof prover="3"><result status="valid" time="0.039363" steps="44721"/></proof>
</goal>
</transf>
</goal>
<goal name="bfs'vc.16.1" expl="false case (postcondition)" proved="true">
<proof prover="3"><result status="valid" time="0.022479" steps="3469"/></proof>
</goal>
</transf>
</goal>
</transf>
</goal>
</theory>
<theory name="Dfs" proved="true">
<goal name="dfs'vc" expl="VC for dfs" proved="true">
<transf name="split_vc" proved="true" >
<goal name="dfs'vc.0" expl="postcondition" proved="true">
<proof prover="3"><result status="valid" time="0.077800" steps="11261"/></proof>
</goal>
<goal name="dfs'vc.1" expl="postcondition" proved="true">
<proof prover="3"><result status="valid" time="0.048443" steps="10873"/></proof>
</goal>
<goal name="dfs'vc.2" expl="loop invariant init" proved="true">
<proof prover="3"><result status="valid" time="0.027507" steps="902"/></proof>
</goal>
<goal name="dfs'vc.3" expl="variant decrease" proved="true">
<proof prover="3"><result status="valid" time="0.041510" steps="4950"/></proof>
</goal>
<goal name="dfs'vc.4" expl="precondition" proved="true">
<proof prover="3"><result status="valid" time="0.051158" steps="10890"/></proof>
</goal>
<goal name="dfs'vc.5" expl="postcondition" proved="true">
<proof prover="3"><result status="valid" time="0.056966" steps="12462"/></proof>
</goal>
<goal name="dfs'vc.6" expl="loop invariant preservation" proved="true">
<proof prover="3"><result status="valid" time="0.017269" steps="12681"/></proof>
</goal>
<goal name="dfs'vc.7" expl="postcondition" proved="true">
<proof prover="3"><result status="valid" time="0.059360" steps="14616"/></proof>
</goal>
<goal name="dfs'vc.8" expl="VC for dfs" proved="true">
<proof prover="3"><result status="valid" time="0.052279" steps="11574"/></proof>
</goal>
</transf>
</goal>
<goal name="dfs_max'vc" expl="VC for dfs_max" proved="true">
<proof prover="3"><result status="valid" time="0.045978" steps="12293"/></proof>
</goal>
</theory>
</file>
</why3session>
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