Princess: Fix the broken test

Princess will rewrite "floor" as an epsilon term. We'll have to match it in the visitor and restore the original call to get this to work

Author: daniel-raffler

src/org/sosy_lab/java_smt/test/RationalFormulaManagerTest.java

@@ -126,11 +126,11 @@ public void forallFloorIsLessThanValueTest() throws SolverException, Interrupted
   public void visitFloorTest() {
     requireRationals();
     requireRationalFloor();
-    // TODO Princess will rewrite floor. Add backtranslation in the visitor
+    // TODO Princess will rewrite floor. Add back translation in the visitor
     assume()
         .withMessage("We don't support \"floor\" in the Princess visitor")
         .that(solverToUse())
-        .isEqualTo(Solvers.PRINCESS);
+        .isNotEqualTo(Solvers.PRINCESS);
 
     IntegerFormula f = rmgr.floor(rmgr.makeVariable("v"));
     assertThat(mgr.extractVariables(f)).hasSize(1);