fix obsolete session

examples/hoare_logic/wp_total/why3session.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE why3session SYSTEM "why3session.dtd">
 <why3session
- name="hoare_logic/wp_total/why3session.xml">
+ name="wp_total/why3session.xml">
  <prover
-  id="alt-ergo"
+  id="0"
   name="Alt-Ergo"
   version="0.94"/>
  <prover
-  id="coq"
-  name="Coq"
-  version="8.3pl3"/>
- <prover
-  id="cvc3-2.2"
+  id="1"
   name="CVC3"
   version="2.2"/>
  <prover
-  id="cvc3-2.4"
-  name="CVC3"
-  version="2.4.1"/>
- <prover
-  id="eprover"
-  name="Eprover"
-  version="1.4"/>
- <prover
-  id="gappa"
-  name="Gappa"
-  version="0.15.1"/>
- <prover
-  id="simplify"
-  name="Simplify"
-  version="1.5.4"/>
- <prover
-  id="spass"
-  name="Spass"
-  version="3.7"/>
- <prover
-  id="vampire"
-  name="Vampire"
-  version="0.6"/>
- <prover
-  id="verit"
-  name="veriT"
-  version="dev"/>
- <prover
-  id="yices"
-  name="Yices"
-  version="1.0.25"/>
+  id="2"
+  name="Coq"
+  version="8.3pl3"/>
  <prover
-  id="z3-2"
+  id="3"
   name="Z3"
   version="2.19"/>
- <prover
-  id="z3-3"
-  name="Z3"
-  version="3.2"/>
  <file
   name="../wp_total.mlw"
   verified="false"
   expanded="true">
   <theory
    name="Imp"
-   verified="true"
-   expanded="false">
+   locfile="wp_total/../wp_total.mlw"
+   loclnum="3" loccnumb="7" loccnume="10"
+   verified="false"
+   expanded="true">
    <goal
     name="Test13"
-    sum="73bbbaa8c21789c90ae1492389624f69"
+    locfile="wp_total/../wp_total.mlw"
+    loclnum="72" loccnumb="5" loccnume="11"
+    sum="6a77fae6a0de7332ea76321b19090325"
     proved="true"
     expanded="false"
     shape="ainfix =aeval_termamy_stateaTconstc13aVintc13">
     <proof
-     prover="alt-ergo"
+     prover="0"
      timelimit="5"
-     edited=""
-     obsolete="false">
-     <result status="valid" time="0.01"/>
+     obsolete="false"
+     archived="false">
+     <result status="valid" time="0.02"/>
     </proof>
    </goal>
    <goal
     name="Test42"
-    sum="c67f233c2316e72217883017f57ca1e2"
+    locfile="wp_total/../wp_total.mlw"
+    loclnum="75" loccnumb="5" loccnume="11"
+    sum="64bfa684b345cd4c94782188611bec2d"
     proved="true"
     expanded="false"
     shape="ainfix =aeval_termamy_stateaTvarc0aVintc42">
     <proof
-     prover="alt-ergo"
+     prover="0"
      timelimit="5"
-     edited=""
-     obsolete="false">
+     obsolete="false"
+     archived="false">
      <result status="valid" time="0.00"/>
     </proof>
    </goal>
    <goal
     name="Test0"
-    sum="885605cf9e6760a76dd4318b5fcc374f"
+    locfile="wp_total/../wp_total.mlw"
+    loclnum="78" loccnumb="5" loccnume="10"
+    sum="d71e61ea0d0d8ae5002f73dc1ab133ad"
     proved="true"
     expanded="false"
     shape="ainfix =aeval_termamy_stateaTderefc0aVintc0">
     <proof
-     prover="z3-2"
+     prover="3"
      timelimit="5"
-     edited=""
-     obsolete="false">
-     <result status="valid" time="0.02"/>
+     obsolete="false"
+     archived="false">
+     <result status="valid" time="0.04"/>
     </proof>
     <proof
-     prover="cvc3-2.2"
+     prover="1"
      timelimit="5"
-     edited=""
-     obsolete="false">
-     <result status="valid" time="0.01"/>
+     obsolete="false"
+     archived="false">
+     <result status="valid" time="0.03"/>
     </proof>
     <proof
-     prover="alt-ergo"
+     prover="0"
      timelimit="5"
-     edited=""
-     obsolete="false">
-     <result status="valid" time="0.01"/>
+     obsolete="false"
+     archived="false">
+     <result status="valid" time="0.00"/>
     </proof>
    </goal>
    <goal
     name="Test55"
-    sum="c25f2c9530fa274e23a3e9bf53658474"
+    locfile="wp_total/../wp_total.mlw"
+    loclnum="81" loccnumb="5" loccnume="11"
+    sum="2e5cd53572e8edf10322c0a26a0e44b8"
     proved="true"
     expanded="false"
     shape="ainfix =aeval_termamy_stateaTbinaTvarc0aOplusaTconstc13aVintc55">
     <proof
-     prover="coq"
+     prover="2"
      timelimit="5"
      edited="wp_total_Imp_Test55_1.v"
-     obsolete="false">
-     <result status="valid" time="0.55"/>
+     obsolete="false"
+     archived="false">
+     <result status="valid" time="0.92"/>
     </proof>
    </goal>
    <goal
     name="eval_subst_term"
-    sum="5eb5401d86d177e17922bfa574a80e48"
+    locfile="wp_total/../wp_total.mlw"
+    loclnum="119" loccnumb="6" loccnume="21"
+    sum="20e08700f59ca0b97bbda3be6c60a6e5"
     proved="true"
     expanded="false"
     shape="ainfix =aeval_termV0asubst_termV1V2V3aeval_termamk stateavar_envV0asetaref_envV0V2aeval_termV0V3V1F">
     <proof
-     prover="coq"
+     prover="2"
      timelimit="5"
      edited="wp_total_Imp_eval_subst_term_1.v"
-     obsolete="false">
-     <result status="valid" time="0.54"/>
+     obsolete="false"
+     archived="false">
+     <result status="valid" time="0.97"/>
     </proof>
    </goal>
    <goal
     name="eval_subst"
-    sum="cc8ae4faf69066486b982c524c5dbe80"
-    proved="true"
-    expanded="false"
+    locfile="wp_total/../wp_total.mlw"
+    loclnum="137" loccnumb="6" loccnume="16"
+    sum="0b8239c98fdd9f2b4f693dd1371a58f6"
+    proved="false"
+    expanded="true"
     shape="aeval_fmlaamk stateavar_envV1asetaref_envV1V2aeval_termV1V3V0qaeval_fmlaV1asubstV0V2V3F">
     <proof
-     prover="coq"
+     prover="2"
      timelimit="5"
      edited="wp_total_Imp_eval_subst_2.v"
-     obsolete="false">
-     <result status="valid" time="0.56"/>
+     obsolete="false"
+     archived="false">
+     <result status="unknown" time="0.92"/>
     </proof>
    </goal>
    <goal
     name="check_skip"
-    sum="c85ed2d1699c7627680e4c4474a1dd24"
+    locfile="wp_total/../wp_total.mlw"
+    loclnum="154" loccnumb="6" loccnume="16"
+    sum="4b4c2f678575cd51e32aaaa39c5a9de3"
     proved="true"
     expanded="false"
     shape="ainfix =V0aSskipNOainfix =V0aSskipF">
     <proof
-     prover="alt-ergo"
+     prover="0"
      timelimit="5"
-     edited=""
-     obsolete="false">
-     <result status="valid" time="0.00"/>
+     obsolete="false"
+     archived="false">
+     <result status="valid" time="0.01"/>
     </proof>
    </goal>
    <goal
     name="Ass42"
-    sum="8946d6ab1408129605768573a83f254f"
+    locfile="wp_total/../wp_total.mlw"
+    loclnum="204" loccnumb="7" loccnume="12"
+    sum="afb72905c10342f570fe71e474a95a28"
     proved="true"
     expanded="false"
     shape="Lc0ainfix =agetaref_envV1V0aVintc42Iaone_stepamy_stateaSassignV0aTconstc42V1aSskipF">
     <proof
-     prover="alt-ergo"
+     prover="0"
      timelimit="5"
-     edited=""
-     obsolete="false">
-     <result status="valid" time="0.08"/>
+     obsolete="false"
+     archived="false">
+     <result status="valid" time="0.17"/>
     </proof>
    </goal>
    <goal
     name="If42"
-    sum="621331c8289eadee0bffcb621b686eba"
+    locfile="wp_total/../wp_total.mlw"
+    loclnum="210" loccnumb="7" loccnume="11"
+    sum="fd94d6c2190eda0d9b426a1c313b2d4d"
     proved="true"
     expanded="false"
     shape="Lc0ainfix =agetaref_envV2V0aVintc13Iaone_stepV1V3V2aSskipIaone_stepamy_stateaSifaTbinaTderefV0aOleaTconstc10aSassignV0aTconstc13aSassignV0aTconstc42V1V3F">
     <proof
-     prover="coq"
+     prover="2"
      timelimit="5"
      edited="wp_total_Imp_If42_1.v"
-     obsolete="false">
-     <result status="valid" time="0.70"/>
+     obsolete="false"
+     archived="false">
+     <result status="valid" time="1.12"/>
     </proof>
    </goal>
    <goal
     name="steps_non_neg"
-    sum="2d79e092f9c6e122ccaa35d005c311f8"
+    locfile="wp_total/../wp_total.mlw"
+    loclnum="241" loccnumb="6" loccnume="19"
+    sum="e27dfbdbc40c15795ffb2a49f1d0ff4c"
     proved="true"
     expanded="false"
     shape="ainfix >=V4c0Iamany_stepsV0V2V1V3V4F">
     <proof
-     prover="coq"
+     prover="2"
      timelimit="5"
      edited="wp_total_Imp_steps_non_neg_1.v"
-     obsolete="false">
-     <result status="valid" time="0.53"/>
+     obsolete="false"
+     archived="false">
+     <result status="valid" time="0.92"/>
     </proof>
    </goal>
    <goal
     name="many_steps_seq"
-    sum="80707f02d94fc6a60e260ec34849847c"
+    locfile="wp_total/../wp_total.mlw"
+    loclnum="245" loccnumb="6" loccnume="20"
+    sum="6917cd3a3e80db5d3fd2b1fa673679e2"
     proved="true"
     expanded="false"
     shape="ainfix =V4ainfix +ainfix +c1V6V7Aamany_stepsV5V3V1aSskipV7Aamany_stepsV0V2V5aSskipV6EIamany_stepsV0aSseqV2V3V1aSskipV4F">
     <proof
-     prover="coq"
+     prover="2"
      timelimit="5"
      edited="wp_total_Imp_many_steps_seq_1.v"
-     obsolete="false">
-     <result status="valid" time="0.61"/>
+     obsolete="false"
+     archived="false">
+     <result status="valid" time="1.05"/>
     </proof>
    </goal>
    <goal
     name="skip_rule"
-    sum="0b28a425f02c50dbd76a1eedbb42dbdc"
+    locfile="wp_total/../wp_total.mlw"
+    loclnum="274" loccnumb="6" loccnume="15"
+    sum="217d63588a21fa7ad821b8d871c09945"
     proved="true"
     expanded="false"
     shape="avalid_tripleV0aSskipV0F">
     <proof
-     prover="alt-ergo"
+     prover="0"
      timelimit="5"
-     edited=""
-     obsolete="false">
-     <result status="valid" time="1.59"/>
+     obsolete="false"
+     archived="false">
+     <result status="valid" time="1.56"/>
     </proof>
    </goal>
    <goal
     name="assign_rule"
-    sum="09c93c2ad9b01e881d20c288190d2bca"
+    locfile="wp_total/../wp_total.mlw"
+    loclnum="277" loccnumb="6" loccnume="17"
+    sum="aba37f16d271198ae5b7dfc39d7cc9a7"
     proved="true"
     expanded="false"
     shape="avalid_tripleasubstV0V1V2aSassignV1V2V0F">
     <proof
-     prover="coq"
+     prover="2"
      timelimit="5"
      edited="wp_total_Imp_assign_rule_1.v"
-     obsolete="false">
-     <result status="valid" time="0.61"/>
+     obsolete="false"
+     archived="false">
+     <result status="valid" time="0.98"/>
     </proof>
    </goal>
    <goal
     name="seq_rule"
-    sum="9900a241b0cd385b545308baac7162ab"
+    locfile="wp_total/../wp_total.mlw"
+    loclnum="281" loccnumb="6" loccnume="14"
+    sum="f1cf9dd3ebefb41ebe50d46642366856"
     proved="true"
     expanded="false"
     shape="avalid_tripleV0aSseqV3V4V1Iavalid_tripleV2V4V1Aavalid_tripleV0V3V2F">
     <proof
-     prover="z3-2"
+     prover="3"
      timelimit="5"
-     edited=""
-     obsolete="false">
-     <result status="valid" time="0.04"/>
+     obsolete="false"
+     archived="false">
+     <result status="valid" time="0.07"/>
     </proof>
    </goal>
    <goal
     name="if_rule"
-    sum="c63598af102884475eb6d730531e8ca2"
+    locfile="wp_total/../wp_total.mlw"
+    loclnum="286" loccnumb="6" loccnume="13"
+    sum="5b9d1548b545a3673c0c928b8dbecef5"
     proved="true"
     expanded="false"
     shape="avalid_tripleV1aSifV0V3V4V2Iavalid_tripleaFandV1aFnotaFtermV0V4V2Aavalid_tripleaFandV1aFtermV0V3V2F">
     <proof
-     prover="coq"
+     prover="2"
      timelimit="5"
      edited="wp_total_Imp_if_rule_1.v"
-     obsolete="false">
-     <result status="valid" time="0.65"/>
+     obsolete="false"
+     archived="false">
+     <result status="valid" time="1.09"/>
     </proof>
    </goal>
    <goal
     name="assert_rule"
-    sum="80621c5cb8b97d0a529a33e48a728a5e"
+    locfile="wp_total/../wp_total.mlw"
+    loclnum="292" loccnumb="6" loccnume="17"
+    sum="d6a4280992f518ec98fc872ba36175c8"
     proved="true"
     expanded="false"
     shape="avalid_tripleV1aSassertV0V1Iavalid_fmlaaFimpliesV1V0F">
     <proof
-     prover="coq"
+     prover="2"
      timelimit="5"
      edited="wp_total_Imp_assert_rule_1.v"
-     obsolete="false">
-     <result status="valid" time="0.59"/>
+     obsolete="false"
+     archived="false">
+     <result status="valid" time="1.01"/>
     </proof>
    </goal>
    <goal
     name="assert_rule_ext"
-    sum="a669eb36cbc51beebb64bf280cc017a6"
+    locfile="wp_total/../wp_total.mlw"
+    loclnum="296" loccnumb="6" loccnume="21"
+    sum="25cb5365c92e302a136ffbb3e96d6054"
     proved="true"
     expanded="false"
     shape="avalid_tripleaFimpliesV0V1aSassertV0V1F">
     <proof
-     prover="coq"
+     prover="2"
      timelimit="5"
      edited="wp_total_Imp_assert_rule_ext_1.v"
-     obsolete="false">
-     <result status="valid" time="0.58"/>
+     obsolete="false"
+     archived="false">
+     <result status="valid" time="1.00"/>
     </proof>
    </goal>
    <goal
     name="while_rule"
-    sum="1133fbd4964fd9c61f28b212eba9d5f8"
+    locfile="wp_total/../wp_total.mlw"
+    loclnum="300" loccnumb="6" loccnume="16"
+    sum="0f6a6de65bfb668dc51d372154aa6803"
     proved="true"
     expanded="false"
     shape="avalid_tripleV1aSwhileV0V1V2aFandaFnotaFtermV0V1Iavalid_tripleaFandaFtermV0V1V2V1F">
     <proof
-     prover="coq"
+     prover="2"
      timelimit="5"
      edited="wp_total_Imp_while_rule_1.v"
-     obsolete="false">
-     <result status="valid" time="0.72"/>
+     obsolete="false"
+     archived="false">
+     <result status="valid" time="1.21"/>
     </proof>
    </goal>
    <goal
     name="while_rule_ext"
-    sum="a59215763073f106d7e759f033ef9a21"
+    locfile="wp_total/../wp_total.mlw"
+    loclnum="305" loccnumb="6" loccnume="20"
+    sum="311c28274b23efde0bb1f5fe83c9de7f"
     proved="true"
     expanded="false"
     shape="avalid_tripleV2aSwhileV0V1V3aFandaFnotaFtermV0V2Iavalid_tripleaFandaFtermV0V2V3V2Iavalid_fmlaaFimpliesV2V1F">
     <proof
-     prover="coq"
+     prover="2"
      timelimit="5"
      edited="wp_total_Imp_while_rule_ext_1.v"
-     obsolete="false">
-     <result status="valid" time="0.69"/>
+     obsolete="false"
+     archived="false">
+     <result status="valid" time="1.14"/>
     </proof>
    </goal>
    <goal
     name="consequence_rule"
-    sum="ba4df7de10af9c0a89d1dd0a80e90f6d"
+    locfile="wp_total/../wp_total.mlw"
+    loclnum="311" loccnumb="6" loccnume="22"
+    sum="b9254275c3cbbc996afae79b202b07d3"
     proved="true"
     expanded="false"
     shape="avalid_tripleV1V4V3Iavalid_fmlaaFimpliesV2V3Iavalid_tripleV0V4V2Iavalid_fmlaaFimpliesV1V0F">
     <proof
-     prover="z3-2"
+     prover="3"
      timelimit="5"
-     edited=""
-     obsolete="false">
-     <result status="valid" time="0.05"/>
+     obsolete="false"
+     archived="false">
+     <result status="valid" time="0.10"/>
     </proof>
     <proof
-     prover="cvc3-2.2"
+     prover="1"
      timelimit="5"
-     edited=""
-     obsolete="false">
-     <result status="valid" time="0.67"/>
+     obsolete="false"
+     archived="false">
+     <result status="valid" time="1.18"/>
     </proof>
    </goal>
   </theory>
   <theory
    name="WP WP"
+   locfile="wp_total/../wp_total.mlw"
+   loclnum="339" loccnumb="7" loccnume="9"
    verified="false"
    expanded="true">
    <goal
     name="WP_parameter wp"
+    locfile="wp_total/../wp_total.mlw"
+    loclnum="343" loccnumb="10" loccnume="12"
     expl="parameter wp"
-    sum="d93d5cb9013f441420d5183d3fc07cc5"
+    sum="a91a4afa65657a32ccce911911868ad9"
     proved="false"
     expanded="true"
     shape="CV0aSskipavalid_tripleV1V0V1aSseqVVavalid_tripleV5V0V1Iavalid_tripleV5V2V4FIavalid_tripleV4V3V1FaSassignVVavalid_tripleasubstV1V6V7V0V1aSifVVVavalid_tripleaFandaFimpliesaFtermV8V11aFimpliesaFnotaFtermV8V12V0V1Iavalid_tripleV12V10V1FIavalid_tripleV11V9V1FaSassertVavalid_tripleaFimpliesV13V1V0V1aSwhileVVVavalid_tripleaFandV15aFandaFimpliesaFandaFtermV14V15V17aFimpliesaFandaFnotaFtermV14V15V1V0V1Iavalid_tripleV17V16V15FFF">
+    <label
+     name="expl:parameter wp">
+     </label>
     <proof
-     prover="coq"
+     prover="2"
      timelimit="5"
      edited="wp_total_WP_WP_WP_parameter_wp_2.v"
-     obsolete="false">
-     <result status="unknown" time="0.56"/>
+     obsolete="false"
+     archived="false">
+     <result status="unknown" time="0.92"/>
     </proof>
     <transf
      name="split_goal"
@@ -388,141 +414,172 @@
      expanded="true">
      <goal
       name="WP_parameter wp.1"
+      locfile="wp_total/../wp_total.mlw"
+      loclnum="343" loccnumb="10" loccnume="12"
       expl="parameter wp"
-      sum="16ea833f8e34f438109f7f91fea8f705"
+      sum="6b4b340c578067c16a8e4426b676df6f"
       proved="true"
       expanded="false"
       shape="CV0aSskipavalid_tripleV1V0V1aSseqVVtaSassignVVtaSifVVVtaSassertVtaSwhileVVVtFF">
+      <label
+       name="expl:parameter wp">
+       </label>
       <proof
-       prover="alt-ergo"
+       prover="0"
        timelimit="5"
-       edited=""
-       obsolete="false">
-       <result status="valid" time="0.02"/>
+       obsolete="false"
+       archived="false">
+       <result status="valid" time="0.03"/>
       </proof>
      </goal>
      <goal
       name="WP_parameter wp.2"
+      locfile="wp_total/../wp_total.mlw"
+      loclnum="343" loccnumb="10" loccnume="12"
       expl="parameter wp"
-      sum="7fa9c674a4e050fd23c0c2ffa8222e5a"
+      sum="6d061b49e52263f1cb3cddd6940df0e2"
       proved="true"
       expanded="false"
       shape="CV0aSskiptaSseqVVavalid_tripleV5V0V1Iavalid_tripleV5V2V4FIavalid_tripleV4V3V1FaSassignVVtaSifVVVtaSassertVtaSwhileVVVtFF">
+      <label
+       name="expl:parameter wp">
+       </label>
       <proof
-       prover="alt-ergo"
+       prover="0"
        timelimit="5"
-       edited=""
-       obsolete="false">
-       <result status="valid" time="0.02"/>
+       obsolete="false"
+       archived="false">