Error with GAMESS CI wavefunctions (convert4qmc and QMC energies)

[NastaMauger]

Hello,

I am trying to export a CI calculation done with GAMESS. Following the manual, I ran a job using SCFTYP=NONE, CITYP=GUGA, and PRTMO=.T.. The GAMESS job converges smoothly.

I then exported the wavefunction using:
convert4qmc -gamess ci.out -ci ci.out -addCusp -production -readInitialGuess 510

However, when computing the energy without a Jastrow factor (to evaluate the cusp correction), I obtain an energy of
−230.762128 ± 0.017840,
whereas the GAMESS output reports
CI EIGENSTATE 1 TOTAL ENERGY = −230.8620665156
This discrepancy seems too large to be expected. Am I missing something in the export or setup?
I have attached my GAMESS output and the Cusp.xml for reference. Thank for your help
ci.out.txt
Cusp.xml

[prckent]

Indeed the change seems large. To narrow down the source of any problem, what does a run without added cusp give?

[NastaMauger]

Hello,

So I used the same GAMESS output and exported it using
convert4qmc -gamess ci.out -ci ci.out -production -readInitialGuess 510
I then ran a short QMCPACK job without a Jastrow and obtained the following energy:
−230.724893 ± 0.025806, which seems even more off.
I also did not use any pseudopotentials in the GAMESS calculation.

The qmcpack job used the following inputs:

<?xml version="1.0"?>
<simulation>
  <project id="ci" series="00">
      <parameter name="driver_version">legacy</parameter> 
  </project> 
  <include href="../ci.structure.xml"/>
  <include href="ci.wfj.xml"/>
  <random seed="123"/>
  <hamiltonian name="h0" type="generic" target="e">
    <pairpot name="ElecElec" type="coulomb" source="e" target="e" physical="true"/>
    <pairpot name="IonIon" type="coulomb" source="ion0" target="ion0"/>
    <pairpot name="IonElec" type="coulomb" source="ion0" target="e"/>
  </hamiltonian>
  <qmc method="vmc" move="pbyp" checkpoint="-1">
    <estimator name="LocalEnergy" hdf5="no"/>
    <parameter name="walkers">1</parameter>
    <parameter name="samplesperthread">10</parameter>
    <parameter name="steps">30</parameter>
    <parameter name="substeps">30</parameter>
    <parameter name="warmupSteps">100</parameter>
    <parameter name="blocks">1000</parameter>
    <parameter name="timestep">0.05</parameter>
    <parameter name="usedrift">no</parameter>
  </qmc>
</simulation>