diff --git a/in/scripts/gen_asm.py b/in/scripts/gen_asm.py
new file mode 100755
index 0000000..56dc0f6
--- /dev/null
+++ b/in/scripts/gen_asm.py
@@ -0,0 +1,89 @@
+#!/usr/bin/env python
+
+from sys import argv,exit
+
+OPTIONS_STR = """
+options { use-context-automaton; make-progressive; }
+"""
+
+PROC_STR = """
+    proc{:d} {{
+        {{{{a}}, {{s}} -> {{y}}}};
+        {{{{y}}, {{s}} -> {{y}}}};
+        {{{{a}}, {{s}} -> {{b}}}};
+        {{{{b}}, {{s}} -> {{c}}}};
+        {{{{c}}, {{s}} -> {{d}}}};
+        {{{{d,y}}, {{s}} -> {{dy}}}};
+    }};
+"""
+
+FINAL_PROC = """
+    procFinal {
+        {{done}, {s} -> {done}};
+    };
+"""
+
+CA_STR = """
+context-automaton {{
+    states {{ init, act }}
+    init-state {{ init }}
+    transitions {{
+{:s}
+    }}
+}}
+"""
+
+PROPERTY_STR = """
+rsctlk-property {{ {:s} : {:s} }}
+"""
+
+
+#################################################################
+
+if len(argv) < 1:
+    print("Usage: {:s} <number of processes>".format(argv[0]))
+    exit(100)
+
+n = int(argv[1])
+
+assert n > 1, "number of proc must be > 1"
+
+out = ""
+
+out += OPTIONS_STR
+out += "reactions {\n"
+for i in range(1, n+1):
+    out += PROC_STR.format(i)
+
+out += FINAL_PROC
+out += "}\n"
+
+transitions = ""
+
+init_trans = 8*" " + "{ proc1={a} }: init -> act;\n"
+transitions += init_trans
+
+for i in range(1, n+1):
+    transitions += "{:s}{{ proc{:d}={{}} }}: act -> act;\n".format(8*" ", i, i)
+
+for i in range(2, n+1):
+    transitions += "{:s}{{ proc{:d}={{a}} }}: act -> act : proc{:d}.dy;\n".format(8*" ", i, i-1)
+
+final_cond = "proc1.dy"
+for i in range(1, n+1):
+     final_cond += " AND proc{:d}.dy".format(i)
+
+transitions += "{:s}{{ procFinal={{done}} }}: act -> act : {:s};\n".format(8*" ", final_cond)
+
+out += CA_STR.format(transitions)
+
+# f1
+formula = "EF( procFinal.done )"
+out += PROPERTY_STR.format("f1",formula)
+
+# f2
+formula = "EF( ~procFinal.done )"
+out += PROPERTY_STR.format("f2",formula)
+
+print(out)
+