Add model checkers. Close #2

tools/mc/cpachecker.md

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+date = 2025-06-07
+draft = false
+title = 'CPAchecker'
+subtitle = 'Model Checker'
+links = [
+    { title = "Homepage", url = "https://cpachecker.sosy-lab.org/", icon = 'fa-solid fa-home' },
+    { title = "Source Code", url = "https://gitlab.com/sosy-lab/software/cpachecker/", icon = 'fa-brands fa-github'  },
+    # { title = "Playground", url = "https://cvc5.github.io/app/", icon = 'fa-solid fa-gamepad' }
+]
+applications = ['Model Checker']
+developers = ['Ludwig-Maximilians-Universität München']
+licenses = ['Apache-2.0']
+# inputs = ['Sally']
+# interfaces = ['CLI']
+maintenance = ['Actively Maintained']
+# techniques = ['CDCL']
+# publications = ['']
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+
+<!-- {{<inactive year="2012">}} -->
+{{<closed-source>}}
+CPAchecker is a tool for configurable software verification.