Update AMICI to v0.26.3-26-g9f562667 (#396)

This should fix the random test failures (AMICI-dev/AMICI#2491).

```
git subrepo clone --branch=9f562667ba74d1dfdd86514f89155644daeec4ba --force [email protected]:dweindl/AMICI.git deps/AMICI

subrepo:
  subdir:   "deps/AMICI"
  merged:   "9f562667"
upstream:
  origin:   "[email protected]:dweindl/AMICI.git"
  branch:   "9f562667ba74d1dfdd86514f89155644daeec4ba"
  commit:   "9f562667"
git-subrepo:
  version:  "0.4.8"
  origin:   "https://github.com/ingydotnet/git-subrepo"
  commit:   "3a53c20"
```

deps/AMICI/.github/workflows/test_python_ver_matrix.yml

@@ -25,8 +25,15 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.10', '3.11', '3.12']
-        experimental: [false]
+        include:
+          - python-version: '3.10'
+            experimental: false
+          - python-version: '3.11'
+            experimental: false
+          - python-version: '3.12'
+            experimental: false
+          - python-version: '3.13'
+            experimental: true
 
     steps:
     - run: echo "AMICI_DIR=$(pwd)" >> $GITHUB_ENV
@@ -53,12 +60,7 @@ jobs:
     # install pysb before sympy to allow for sympy>=1.12 (https://github.com/pysb/pysb/commit/e83937cb8c74afc9b2fa96595b68464946745f33)
     - run: source venv/bin/activate && pip3 install git+https://github.com/pysb/pysb
 
-    # until sympy>1.12 is released
-    - run: source venv/bin/activate && pip3 install git+https://github.com/sympy/sympy.git@master
-      if: matrix.python-version == '3.12'
-
-    - run: source venv/bin/activate && pip3 install "sympy>=1.12.1"
-      if: matrix.python-version != '3.12'
+    - run: source venv/bin/activate && pip3 install "sympy>1.12"
 
     - name: Get Pooch Cache Directory
       id: get-pooch-cache

deps/AMICI/.gitrepo

@@ -5,8 +5,8 @@
 ;
 [subrepo]
 	remote = [email protected]:ICB-DCM/AMICI.git
-	branch = 8253a97d413cbbcfec335fb50fd1355107804e9e
-	commit = 8253a97d413cbbcfec335fb50fd1355107804e9e
-	parent = 4b6205d1b4661c227beee7039416c516d47e91f9
-	cmdver = 0.4.6
+	branch = 9f562667ba74d1dfdd86514f89155644daeec4ba
+	commit = 9f562667ba74d1dfdd86514f89155644daeec4ba
+	parent = 63262608a702ccbca96980c4058c2d29895658a8
+	cmdver = 0.4.8
 	method = merge

deps/AMICI/include/amici/forwardproblem.h

@@ -2,6 +2,7 @@
 #define AMICI_FORWARDPROBLEM_H
 
 #include "amici/defines.h"
+#include "amici/edata.h"
 #include "amici/misc.h"
 #include "amici/model.h"
 #include "amici/vector.h"
@@ -195,7 +196,7 @@ class ForwardProblem {
         if (model->getTimepoint(it) == initial_state_.t)
             return getInitialSimulationState();
         auto map_iter = timepoint_states_.find(model->getTimepoint(it));
-        assert(map_iter != timepoint_states_.end());
+        Ensures(map_iter != timepoint_states_.end());
         return map_iter->second;
     };
 
@@ -441,8 +442,20 @@ class FinalStateStorer : public ContextManager {
      * @brief destructor, stores simulation state
      */
     ~FinalStateStorer() {
-        if (fwd_)
+        if (fwd_) {
             fwd_->final_state_ = fwd_->getSimulationState();
+            // if there is an associated output timepoint, also store it in
+            // timepoint_states if it's not present there.
+            // this may happen if there is an error just at
+            // (or indistinguishably before) an output timepoint
+            auto final_time = fwd_->getFinalTime();
+            auto const timepoints = fwd_->model->getTimepoints();
+            if (!fwd_->timepoint_states_.count(final_time)
+                && std::find(timepoints.cbegin(), timepoints.cend(), final_time)
+                       != timepoints.cend()) {
+                fwd_->timepoint_states_[final_time] = fwd_->final_state_;
+            }
+        }
     }
 
   private:

deps/AMICI/include/amici/logging.h

@@ -80,7 +80,7 @@ struct LogItem {
     )
         : severity(severity)
         , identifier(identifier)
-        , message(message){};
+        , message(message) {};
 
     /** Severity level */
     LogSeverity severity = LogSeverity::error;