twaalgos: Implement dt*a_sat_minimize_incr(...) functions

* python/spot/__init__.py: Add 'incr' boolean argument.
* spot/twaalgos/dtbasat.cc: Implement dtba_sat_minimize_incr(...).
* spot/twaalgos/dtbasat.hh: Declare it.
* spot/twaalgos/dtwasat.cc: Implement dtwa_sat_minimize_incr(...) and
deal with options.
* spot/twaalgos/dtwasat.hh: Declare it.
* spot/twaalgos/postproc.cc: Add option --sat-minimize=incr.
* spot/twaalgos/postproc.hh: Add incr parameter.
* tests/core/satmin.test: Add tests for incremental version.
Update expected result.
* tests/core/satmin2.test: Add tests for incremental version.
* tests/python/satmin.py: Add tests for incremental version.

tests/python/satmin.py

@@ -25,20 +25,108 @@ assert aut.num_sets() == 1
 assert aut.num_states() == 3
 assert aut.is_deterministic()
 
+
 min1 = spot.sat_minimize(aut, acc='Rabin 1')
 assert min1.num_sets() == 2
 assert min1.num_states() == 2
+min1 = spot.sat_minimize(aut, acc='Rabin 1', incr=True)
+assert min1.num_sets() == 2
+assert min1.num_states() == 2
+min1 = spot.sat_minimize(aut, acc='Rabin 1', incr=True, param=-1)
+assert min1.num_sets() == 2
+assert min1.num_states() == 2
+min1 = spot.sat_minimize(aut, acc='Rabin 1', incr=True, param=0)
+assert min1.num_sets() == 2
+assert min1.num_states() == 2
+min1 = spot.sat_minimize(aut, acc='Rabin 1', incr=True, param=1)
+assert min1.num_sets() == 2
+assert min1.num_states() == 2
+min1 = spot.sat_minimize(aut, acc='Rabin 1', incr=True, param=2)
+assert min1.num_sets() == 2
+assert min1.num_states() == 2
+min1 = spot.sat_minimize(aut, acc='Rabin 1', incr=True, param=50)
+assert min1.num_sets() == 2
+assert min1.num_states() == 2
+
 
 min2 = spot.sat_minimize(aut, acc='Streett 2', dichotomy=True)
 assert min2.num_sets() == 4
 assert min2.num_states() == 1
+min2 = spot.sat_minimize(aut, acc='Streett 2', incr=True)
+assert min2.num_sets() == 4
+assert min2.num_states() == 1
+min2 = spot.sat_minimize(aut, acc='Streett 2', incr=True, param=-1)
+assert min2.num_sets() == 4
+assert min2.num_states() == 1
+min2 = spot.sat_minimize(aut, acc='Streett 2', incr=True, param=0)
+assert min2.num_sets() == 4
+assert min2.num_states() == 1
+min2 = spot.sat_minimize(aut, acc='Streett 2', incr=True, param=1)
+assert min2.num_sets() == 4
+assert min2.num_states() == 1
+min2 = spot.sat_minimize(aut, acc='Streett 2', incr=True, param=2)
+assert min2.num_sets() == 4
+assert min2.num_states() == 1
+min2 = spot.sat_minimize(aut, acc='Streett 2', incr=True, param=50)
+assert min2.num_sets() == 4
+assert min2.num_states() == 1
+
 
 min3 = spot.sat_minimize(aut, acc='Rabin 2',
                          state_based=True, max_states=5, dichotomy=True)
 assert min3.num_sets() == 4
 assert min3.num_states() == 3
+min3 = spot.sat_minimize(aut, acc='Rabin 2',
+                         state_based=True, max_states=5, incr=True)
+assert min3.num_sets() == 4
+assert min3.num_states() == 3
+min3 = spot.sat_minimize(aut, acc='Rabin 2',
+                         state_based=True, max_states=5, incr=True, param=-1)
+assert min3.num_sets() == 4
+assert min3.num_states() == 3
+min3 = spot.sat_minimize(aut, acc='Rabin 2',
+                         state_based=True, max_states=5, incr=True, param=0)
+assert min3.num_sets() == 4
+assert min3.num_states() == 3
+min3 = spot.sat_minimize(aut, acc='Rabin 2',
+                         state_based=True, max_states=5, incr=True, param=1)
+assert min3.num_sets() == 4
+assert min3.num_states() == 3
+min3 = spot.sat_minimize(aut, acc='Rabin 2',
+                         state_based=True, max_states=5, incr=True, param=2)
+assert min3.num_sets() == 4
+assert min3.num_states() == 3
+min3 = spot.sat_minimize(aut, acc='Rabin 2',
+                         state_based=True, max_states=5, incr=True, param=50)
+assert min3.num_sets() == 4
+assert min3.num_states() == 3
+
 
 min4 = spot.sat_minimize(aut, acc='parity max odd 3',
                          colored=True, dichotomy=True)
 assert min4.num_sets() == 3
 assert min4.num_states() == 2
+min4 = spot.sat_minimize(aut, acc='parity max odd 3',
+                         colored=True, incr=True)
+assert min4.num_sets() == 3
+assert min4.num_states() == 2
+min4 = spot.sat_minimize(aut, acc='parity max odd 3',
+                         colored=True, incr=True, param=-1)
+assert min4.num_sets() == 3
+assert min4.num_states() == 2
+min4 = spot.sat_minimize(aut, acc='parity max odd 3',
+                         colored=True, incr=True, param=0)
+assert min4.num_sets() == 3
+assert min4.num_states() == 2
+min4 = spot.sat_minimize(aut, acc='parity max odd 3',
+                         colored=True, incr=True, param=1)
+assert min4.num_sets() == 3
+assert min4.num_states() == 2
+min4 = spot.sat_minimize(aut, acc='parity max odd 3',
+                         colored=True, incr=True, param=2)
+assert min4.num_sets() == 3
+assert min4.num_states() == 2
+min4 = spot.sat_minimize(aut, acc='parity max odd 3',
+                         colored=True, incr=True, param=50)
+assert min4.num_sets() == 3
+assert min4.num_states() == 2