Remove experimental symmetry breaker (#4005)

This never impacted performance positively. Fixes #3997 and fixes #4015.

There was a folder that the symmetry breaker was used on regress1/sym. These are simple examples that show when it is possible to find symmetries in SMT; the symmetry breaker is not critical for solving these. For now I'm leaving them as regressions documenting possible benchmarks to target if we revisit this technique.

12 files changed, 0 insertions, 12 deletions

diff --git a/test/regress/regress1/sym/q-constant.smt2 b/test/regress/regress1/sym/q-constant.smt2
index b8fee6c8d..8649df2c7 100644
--- a/test/regress/regress1/sym/q-constant.smt2
+++ b/test/regress/regress1/sym/q-constant.smt2
@@ -1,4 +1,3 @@
-; COMMAND-LINE: --symmetry-breaker-exp
 (set-logic ALL)
 (set-info :status unsat)
 (declare-fun f (Int) Int)
diff --git a/test/regress/regress1/sym/q-function.smt2 b/test/regress/regress1/sym/q-function.smt2
index 3e303106e..6ab835e00 100644
--- a/test/regress/regress1/sym/q-function.smt2
+++ b/test/regress/regress1/sym/q-function.smt2
@@ -1,4 +1,3 @@
-; COMMAND-LINE: --symmetry-breaker-exp
 (set-logic ALL)
 (set-info :status unsat)
 (declare-fun f (Int) Int)
diff --git a/test/regress/regress1/sym/qf-function.smt2 b/test/regress/regress1/sym/qf-function.smt2
index 697f9e1f0..d2933d26f 100644
--- a/test/regress/regress1/sym/qf-function.smt2
+++ b/test/regress/regress1/sym/qf-function.smt2
@@ -1,4 +1,3 @@
-; COMMAND-LINE: --symmetry-breaker-exp
 (set-logic QF_UFLIA)
 (set-info :status sat)
 (declare-fun f (Int) Int)
diff --git a/test/regress/regress1/sym/sb-wrong.smt2 b/test/regress/regress1/sym/sb-wrong.smt2
index 5f5e6bb34..80c7ea550 100644
--- a/test/regress/regress1/sym/sb-wrong.smt2
+++ b/test/regress/regress1/sym/sb-wrong.smt2
@@ -1,4 +1,3 @@
-; COMMAND-LINE: --symmetry-breaker-exp
 (set-logic QF_UFLIA)
 (set-info :status sat)
 (declare-fun f (Int) Int)
diff --git a/test/regress/regress1/sym/sym-setAB.smt2 b/test/regress/regress1/sym/sym-setAB.smt2
index 9d613c3b6..0fdf90bfb 100644
--- a/test/regress/regress1/sym/sym-setAB.smt2
+++ b/test/regress/regress1/sym/sym-setAB.smt2
@@ -1,4 +1,3 @@
-; COMMAND-LINE: --symmetry-breaker-exp
 (set-logic ALL)
 (set-info :status sat)
 (declare-fun x () Int)
diff --git a/test/regress/regress1/sym/sym1.smt2 b/test/regress/regress1/sym/sym1.smt2
index c063f8b8f..987b6c1f4 100644
--- a/test/regress/regress1/sym/sym1.smt2
+++ b/test/regress/regress1/sym/sym1.smt2
@@ -1,4 +1,3 @@
-; COMMAND-LINE: --symmetry-breaker-exp
 (set-logic ALL)
 (set-info :status sat)
 (declare-fun x () Int)
diff --git a/test/regress/regress1/sym/sym2.smt2 b/test/regress/regress1/sym/sym2.smt2
index e2e62cbb6..ec812dbb7 100644
--- a/test/regress/regress1/sym/sym2.smt2
+++ b/test/regress/regress1/sym/sym2.smt2
@@ -1,4 +1,3 @@
-; COMMAND-LINE: --symmetry-breaker-exp
 (set-logic ALL)
 (set-info :status sat)
 (declare-fun x () Int)
diff --git a/test/regress/regress1/sym/sym3.smt2 b/test/regress/regress1/sym/sym3.smt2
index c6b87adeb..50ba55c42 100644
--- a/test/regress/regress1/sym/sym3.smt2
+++ b/test/regress/regress1/sym/sym3.smt2
@@ -1,4 +1,3 @@
-; COMMAND-LINE: --symmetry-breaker-exp
 (set-logic ALL)
 (set-info :status sat)
 (declare-fun x () Int)
diff --git a/test/regress/regress1/sym/sym4.smt2 b/test/regress/regress1/sym/sym4.smt2
index 1cbd6f5b2..a69a23160 100644
--- a/test/regress/regress1/sym/sym4.smt2
+++ b/test/regress/regress1/sym/sym4.smt2
@@ -1,4 +1,3 @@
-; COMMAND-LINE: --symmetry-breaker-exp
 (set-info :smt-lib-version 2.6)
 (set-logic QF_LIA)
 (set-info :category "crafted")
diff --git a/test/regress/regress1/sym/sym5.smt2 b/test/regress/regress1/sym/sym5.smt2
index 6b16d9d35..c13497acd 100644
--- a/test/regress/regress1/sym/sym5.smt2
+++ b/test/regress/regress1/sym/sym5.smt2
@@ -1,4 +1,3 @@
-; COMMAND-LINE: --symmetry-breaker-exp
 (set-logic ALL)
 (set-info :status unsat)
 (declare-fun A () (Set Int))
diff --git a/test/regress/regress1/sym/sym6.smt2 b/test/regress/regress1/sym/sym6.smt2
index 10218ebc9..1161db24f 100644
--- a/test/regress/regress1/sym/sym6.smt2
+++ b/test/regress/regress1/sym/sym6.smt2
@@ -1,4 +1,3 @@
-; COMMAND-LINE: --symmetry-breaker-exp
 (set-logic ALL)
 (set-info :status sat)
 (declare-fun x () Int)
diff --git a/test/regress/regress1/sym/sym7-uf.smt2 b/test/regress/regress1/sym/sym7-uf.smt2
index ee91240d3..8a343303e 100644
--- a/test/regress/regress1/sym/sym7-uf.smt2
+++ b/test/regress/regress1/sym/sym7-uf.smt2
@@ -1,4 +1,3 @@
-; COMMAND-LINE: --symmetry-breaker-exp
 (set-logic ALL)
 (set-info :status sat)
 (declare-sort U 0)