diff --git a/CMakeLists.txt b/CMakeLists.txt
index 059a144f..239d145b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,7 +3,7 @@ project(PSLP LANGUAGES C CXX) # The library is written in C, but we also have so
 
 set(PSLP_VERSION_MAJOR 0)
 set(PSLP_VERSION_MINOR 0)
-set(PSLP_VERSION_PATCH 6)
+set(PSLP_VERSION_PATCH 7)
 set(PSLP_VERSION "${PSLP_VERSION_MAJOR}.${PSLP_VERSION_MINOR}.${PSLP_VERSION_PATCH}")
 add_compile_definitions(PSLP_VERSION="${PSLP_VERSION}")
 
diff --git a/LICENSE b/LICENSE
index fecabe13..0c38718c 100644
--- a/LICENSE
+++ b/LICENSE
@@ -186,7 +186,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright 2025 Daniel Cederberg
+   Copyright 2025-2026 Daniel Cederberg
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
diff --git a/include/PSLP/PSLP_API.h b/include/PSLP/PSLP_API.h
index 7afeead6..6db92085 100644
--- a/include/PSLP/PSLP_API.h
+++ b/include/PSLP/PSLP_API.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/PSLP/PSLP_sol.h b/include/PSLP/PSLP_sol.h
index e3c7c470..16a50aba 100644
--- a/include/PSLP/PSLP_sol.h
+++ b/include/PSLP/PSLP_sol.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/PSLP/PSLP_stats.h b/include/PSLP/PSLP_stats.h
index aad2da00..70e0ae07 100644
--- a/include/PSLP/PSLP_stats.h
+++ b/include/PSLP/PSLP_stats.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/core/Activity.h b/include/core/Activity.h
index 64728ead..833551a5 100644
--- a/include/core/Activity.h
+++ b/include/core/Activity.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/core/Bounds.h b/include/core/Bounds.h
index f2bbbf36..a1005187 100644
--- a/include/core/Bounds.h
+++ b/include/core/Bounds.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/core/Constraints.h b/include/core/Constraints.h
index 2c523447..639ee644 100644
--- a/include/core/Constraints.h
+++ b/include/core/Constraints.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/core/CoreTransformations.h b/include/core/CoreTransformations.h
index 3904c4c8..b5974111 100644
--- a/include/core/CoreTransformations.h
+++ b/include/core/CoreTransformations.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/core/Debugger.h b/include/core/Debugger.h
index a2bcd3ce..f532d728 100644
--- a/include/core/Debugger.h
+++ b/include/core/Debugger.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/core/Locks.h b/include/core/Locks.h
index 7ea9ab23..f286d536 100644
--- a/include/core/Locks.h
+++ b/include/core/Locks.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/core/Matrix.h b/include/core/Matrix.h
index 313a923c..7549a8cc 100644
--- a/include/core/Matrix.h
+++ b/include/core/Matrix.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/core/Numerics.h b/include/core/Numerics.h
index 215fcce0..eb1945ad 100644
--- a/include/core/Numerics.h
+++ b/include/core/Numerics.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/core/Postsolver.h b/include/core/Postsolver.h
index f7abdcae..3663f8e4 100644
--- a/include/core/Postsolver.h
+++ b/include/core/Postsolver.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/core/Problem.h b/include/core/Problem.h
index ccc027e0..1ca8e04c 100644
--- a/include/core/Problem.h
+++ b/include/core/Problem.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/core/RowColViews.h b/include/core/RowColViews.h
index 44657555..a753bc18 100644
--- a/include/core/RowColViews.h
+++ b/include/core/RowColViews.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/core/State.h b/include/core/State.h
index eb05b39f..f1fa6790 100644
--- a/include/core/State.h
+++ b/include/core/State.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/core/Tags.h b/include/core/Tags.h
index 82fa89ab..c75bbd04 100644
--- a/include/core/Tags.h
+++ b/include/core/Tags.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/core/Workspace.h b/include/core/Workspace.h
index 6ac73bdc..278ac1ed 100644
--- a/include/core/Workspace.h
+++ b/include/core/Workspace.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/core/debug_macros.h b/include/core/debug_macros.h
index 6e5fb09c..94afb741 100644
--- a/include/core/debug_macros.h
+++ b/include/core/debug_macros.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/core/glbopts.h b/include/core/glbopts.h
index 182fa440..da5d6d20 100644
--- a/include/core/glbopts.h
+++ b/include/core/glbopts.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/core/radix_sort.h b/include/core/radix_sort.h
index f4d154ca..8f1e31a4 100644
--- a/include/core/radix_sort.h
+++ b/include/core/radix_sort.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/core/utils.h b/include/core/utils.h
index 26208da9..116e5049 100644
--- a/include/core/utils.h
+++ b/include/core/utils.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/data_structures/Binary_search.h b/include/data_structures/Binary_search.h
index 964fd02d..612028ca 100644
--- a/include/data_structures/Binary_search.h
+++ b/include/data_structures/Binary_search.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/data_structures/Memory_wrapper.h b/include/data_structures/Memory_wrapper.h
index d6bc0a1c..86a1d0b7 100644
--- a/include/data_structures/Memory_wrapper.h
+++ b/include/data_structures/Memory_wrapper.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/data_structures/Vec_macros.h b/include/data_structures/Vec_macros.h
index f71b6ed1..5bc3cf0b 100644
--- a/include/data_structures/Vec_macros.h
+++ b/include/data_structures/Vec_macros.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/data_structures/dVec.h b/include/data_structures/dVec.h
index 22cd9bc6..2c3ded4f 100644
--- a/include/data_structures/dVec.h
+++ b/include/data_structures/dVec.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/data_structures/iVec.h b/include/data_structures/iVec.h
index 1760090d..33669ee1 100644
--- a/include/data_structures/iVec.h
+++ b/include/data_structures/iVec.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/data_structures/u16Vec.h b/include/data_structures/u16Vec.h
index bc5b1461..c42ea9f5 100644
--- a/include/data_structures/u16Vec.h
+++ b/include/data_structures/u16Vec.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/explorers/DTonsEq.h b/include/explorers/DTonsEq.h
index 77ddf1af..5675a3cc 100644
--- a/include/explorers/DTonsEq.h
+++ b/include/explorers/DTonsEq.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/explorers/Parallel_cols.h b/include/explorers/Parallel_cols.h
index 220c1503..ca435d39 100644
--- a/include/explorers/Parallel_cols.h
+++ b/include/explorers/Parallel_cols.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/explorers/Parallel_rows.h b/include/explorers/Parallel_rows.h
index f31ea891..93df00d1 100644
--- a/include/explorers/Parallel_rows.h
+++ b/include/explorers/Parallel_rows.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/explorers/Primal_propagation.h b/include/explorers/Primal_propagation.h
index a11e49ed..9dadbc14 100644
--- a/include/explorers/Primal_propagation.h
+++ b/include/explorers/Primal_propagation.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/explorers/SimpleReductions.h b/include/explorers/SimpleReductions.h
index 3d7d8d76..ac9125e2 100644
--- a/include/explorers/SimpleReductions.h
+++ b/include/explorers/SimpleReductions.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/explorers/Simple_dual_fix.h b/include/explorers/Simple_dual_fix.h
index 6493a367..e43ecc1f 100644
--- a/include/explorers/Simple_dual_fix.h
+++ b/include/explorers/Simple_dual_fix.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/explorers/StonCols.h b/include/explorers/StonCols.h
index c57de077..a2181da0 100644
--- a/include/explorers/StonCols.h
+++ b/include/explorers/StonCols.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/include/explorers/Timer.h b/include/explorers/Timer.h
index 91681593..dce9a1a2 100644
--- a/include/explorers/Timer.h
+++ b/include/explorers/Timer.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/src/core/Activity.c b/src/core/Activity.c
index 2d6fd2b2..1c23a3a4 100644
--- a/src/core/Activity.c
+++ b/src/core/Activity.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/src/core/Constraints.c b/src/core/Constraints.c
index 843700fb..e63e1c34 100644
--- a/src/core/Constraints.c
+++ b/src/core/Constraints.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/src/core/CoreTransformation.c b/src/core/CoreTransformation.c
index 8129a2dd..bde9e7d7 100644
--- a/src/core/CoreTransformation.c
+++ b/src/core/CoreTransformation.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/src/core/Debugger.c b/src/core/Debugger.c
index 2c89f5f6..95f61677 100644
--- a/src/core/Debugger.c
+++ b/src/core/Debugger.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/src/core/Locks.c b/src/core/Locks.c
index 8019d2a7..f052040f 100644
--- a/src/core/Locks.c
+++ b/src/core/Locks.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/src/core/Matrix.c b/src/core/Matrix.c
index 35d52bbf..d2e5f613 100644
--- a/src/core/Matrix.c
+++ b/src/core/Matrix.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
@@ -27,6 +27,9 @@
 #include "stdlib.h"
 #include "string.h"
 
+/* forward declaration */
+static inline void remove_explicit_zeros(Matrix *A);
+
 Matrix *matrix_new(const double *Ax, const int *Ai, const int *Ap, size_t n_rows,
                    size_t n_cols, size_t nnz)
 {
@@ -114,9 +117,35 @@ Matrix *matrix_new_no_extra_space(const double *Ax, const int *Ai, const int *Ap
         A->p[i].end = Ap[i + 1];
     }
 
+    /* the presolver assumes that only nonzero entries are stored */
+    remove_explicit_zeros(A);
+
     return A;
 }
 
+static inline void remove_explicit_zeros(Matrix *A)
+{
+    int i, j, shift;
+    for (i = 0; i < A->m; ++i)
+    {
+        shift = 0;
+        for (j = A->p[i].start; j < A->p[i].end; ++j)
+        {
+            if (A->x[j] == 0.0)
+            {
+                shift++;
+            }
+            else if (shift > 0)
+            {
+                A->x[j - shift] = A->x[j];
+                A->i[j - shift] = A->i[j];
+            }
+        }
+        A->p[i].end -= shift;
+        A->nnz -= (size_t) shift;
+    }
+}
+
 Matrix *transpose(const Matrix *A, int *work_n_cols)
 {
     Matrix *AT = matrix_alloc(A->n, A->m, A->nnz);
@@ -433,7 +462,6 @@ double insert_or_update_coeff(Matrix *A, int row, int col, double val, int *row_
     // -----------------------------------------------------------------
     if (ABS(val) > ZERO_TOL)
     {
-        // assert(!IS_ZERO_FEAS_TOL(val));
         if (insertion == end)
         {
             A->x[insertion] = val;
diff --git a/src/core/Postsolver.c b/src/core/Postsolver.c
index 6e4bc03e..a3c77200 100644
--- a/src/core/Postsolver.c
+++ b/src/core/Postsolver.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/src/core/Presolver.c b/src/core/Presolver.c
index 4cbfd7d6..b3ff78a3 100644
--- a/src/core/Presolver.c
+++ b/src/core/Presolver.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
@@ -305,6 +305,7 @@ Presolver *new_presolver(const double *Ax, const int *Ai, const int *Ap, size_t
     presolver->stgs = stgs;
     presolver->prob = new_problem(constraints, obj);
     presolver->stats = init_stats(A->m, A->n, nnz);
+    presolver->stats->nnz_removed_trivial = nnz - (size_t) A->nnz; /* explicit 0's */
     presolver->reduced_prob =
         (PresolvedProblem *) ps_calloc(1, sizeof(PresolvedProblem));
     DEBUG(run_debugger(constraints, false));
diff --git a/src/core/Problem.c b/src/core/Problem.c
index f9e792ce..e25e1e9e 100644
--- a/src/core/Problem.c
+++ b/src/core/Problem.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/src/core/State.c b/src/core/State.c
index 408cca5d..ee8c64e7 100644
--- a/src/core/State.c
+++ b/src/core/State.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/src/core/Tags.c b/src/core/Tags.c
index e1b0af9f..9f0a373a 100644
--- a/src/core/Tags.c
+++ b/src/core/Tags.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/src/core/Workspace.c b/src/core/Workspace.c
index 3156a715..107dcfdc 100644
--- a/src/core/Workspace.c
+++ b/src/core/Workspace.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/src/core/radix_sort.c b/src/core/radix_sort.c
index ee81e4bb..fc43c2c2 100644
--- a/src/core/radix_sort.c
+++ b/src/core/radix_sort.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/src/core/utils.c b/src/core/utils.c
index 7fab3cec..f6dc99ff 100644
--- a/src/core/utils.c
+++ b/src/core/utils.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/src/explorers/DtonsEq.c b/src/explorers/DtonsEq.c
index adbe8292..029f9142 100644
--- a/src/explorers/DtonsEq.c
+++ b/src/explorers/DtonsEq.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/src/explorers/Parallel_cols.c b/src/explorers/Parallel_cols.c
index b8191e16..d3195123 100644
--- a/src/explorers/Parallel_cols.c
+++ b/src/explorers/Parallel_cols.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/src/explorers/Parallel_rows.c b/src/explorers/Parallel_rows.c
index 7de5ffc7..aed1bd67 100644
--- a/src/explorers/Parallel_rows.c
+++ b/src/explorers/Parallel_rows.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/src/explorers/Primal_propagation.c b/src/explorers/Primal_propagation.c
index a77fb974..73417fbf 100644
--- a/src/explorers/Primal_propagation.c
+++ b/src/explorers/Primal_propagation.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/src/explorers/SimpleReductions.c b/src/explorers/SimpleReductions.c
index 22ced65c..1208218f 100644
--- a/src/explorers/SimpleReductions.c
+++ b/src/explorers/SimpleReductions.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/src/explorers/Simple_dual_fix.c b/src/explorers/Simple_dual_fix.c
index 4f6c6d53..5d62ef73 100644
--- a/src/explorers/Simple_dual_fix.c
+++ b/src/explorers/Simple_dual_fix.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/src/explorers/StonCols.c b/src/explorers/StonCols.c
index 4cf05e36..954e5ebe 100644
--- a/src/explorers/StonCols.c
+++ b/src/explorers/StonCols.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025 Daniel Cederberg
+ * Copyright 2025-2026 Daniel Cederberg
  *
  * This file is part of the PSLP project (LP Presolver).
  *
diff --git a/tests/test_postsolve.h b/tests/test_postsolve.h
index c4c62d0b..d6eb8b6b 100644
--- a/tests/test_postsolve.h
+++ b/tests/test_postsolve.h
@@ -22,11 +22,11 @@ static int counter_postsolve = 0;
 */
 static char *test_0_postsolve()
 {
-    double Ax[] = {0.1, 0.2, -0.3, -0.1, 0.4, -0.4, 0.1, 0.3, 1,
-                   0.3, 0.5, -0.6, -0.3, 0.2, -0.2, 0.4, 0.1};
-    int Ai[] = {0, 1, 2, 3, 4, 5, 6, 7, 2, 0, 1, 2, 3, 4, 5, 6, 7};
-    int Ap[] = {0, 8, 9, 17};
-    int nnz = 17;
+    double Ax[] = {0.1, 0.2, -0.3, -0.1, 0.4,  -0.4, 0.1,  0.3, 0,
+                   1,   0.3, 0.5,  -0.6, -0.3, 0.2,  -0.2, 0.4, 0.1};
+    int Ai[] = {0, 1, 2, 3, 4, 5, 6, 7, 0, 2, 0, 1, 2, 3, 4, 5, 6, 7};
+    int Ap[] = {0, 8, 10, 18};
+    int nnz = 18;
     int n_rows = 3;
     int n_cols = 8;