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-rw-r--r--impl/Complete.hpp2
-rw-r--r--impl/Expression.hpp4
-rw-r--r--impl/FixpointAlgorithm.hpp5
-rw-r--r--impl/MaxStrategy.hpp83
-rw-r--r--impl/main.cpp44
-rw-r--r--impl/systems/constant-system.eqns1
-rw-r--r--impl/systems/example.eqns (renamed from impl/systems/size-ten)0
-rw-r--r--impl/systems/generate-fib.py6
-rw-r--r--impl/systems/generate-long.py (renamed from impl/antlr/generate.py)0
-rw-r--r--impl/systems/generate-random.py (renamed from impl/systems/generate-system.py)0
-rw-r--r--impl/systems/long-fib.eqns1001
-rw-r--r--impl/systems/long-fixpoint.eqns (renamed from impl/systems/long-fixpoint)0
-rw-r--r--impl/systems/min-test3
-rw-r--r--impl/systems/minimal.eqns (renamed from impl/systems/small)0
-rw-r--r--impl/systems/random-system1
15 files changed, 1109 insertions, 41 deletions
diff --git a/impl/Complete.hpp b/impl/Complete.hpp
index 22e060a..11f2f83 100644
--- a/impl/Complete.hpp
+++ b/impl/Complete.hpp
@@ -81,7 +81,7 @@ struct Complete {
return other._infinity && ((_value < 0 && other._value < 0) ||
(_value > 0 && other._value > 0));
} else {
- return _value == other._value;
+ return !other._infinity && (_value == other._value);
}
}
bool operator!=(const Complete& other) const {
diff --git a/impl/Expression.hpp b/impl/Expression.hpp
index 72318e4..7fc4542 100644
--- a/impl/Expression.hpp
+++ b/impl/Expression.hpp
@@ -29,7 +29,7 @@ struct Constant : public Expression<Domain> {
}
void print(std::ostream& cout) const {
- cout << _value;
+ cout << _value << "!c";
}
private:
@@ -53,7 +53,7 @@ struct Variable : public Expression<Domain> {
}
void print(std::ostream& cout) const {
- cout << name();
+ cout << _name << "!v";
}
private:
diff --git a/impl/FixpointAlgorithm.hpp b/impl/FixpointAlgorithm.hpp
index 4c84ff2..b39a915 100644
--- a/impl/FixpointAlgorithm.hpp
+++ b/impl/FixpointAlgorithm.hpp
@@ -32,14 +32,13 @@ struct SmartFixpointAlgorithm : public FixpointAlgorithm<Domain> {
struct DynamicVariableAssignment : public VariableAssignment<Domain> {
DynamicVariableAssignment(const EquationSystem<Domain>& system)
: _system(system),
- _evaluating(NULL),
_values(system.variableCount(), infinity<Domain>()),
_stable(system.variableCount()),
- _haveValue(system.variableCount()),
_influence(system.variableCount(), IdSet<Variable<Domain> >(system.variableCount())) { }
const Domain& operator[](const Variable<Domain>& var) const {
solve(var);
+ //std::cout << _values << std::endl;
return _values[var];
}
@@ -81,10 +80,8 @@ struct SmartFixpointAlgorithm : public FixpointAlgorithm<Domain> {
};
const EquationSystem<Domain>& _system;
- mutable const Variable<Domain>* _evaluating;
mutable IdMap<Variable<Domain>,Domain> _values;
mutable IdSet<Variable<Domain> > _stable;
- mutable IdSet<Variable<Domain> > _haveValue;
mutable IdMap<Variable<Domain>,IdSet<Variable<Domain> > > _influence;
};
diff --git a/impl/MaxStrategy.hpp b/impl/MaxStrategy.hpp
index 06f61b7..2be9f4c 100644
--- a/impl/MaxStrategy.hpp
+++ b/impl/MaxStrategy.hpp
@@ -46,6 +46,16 @@ struct MaxStrategy : public EquationSystem<Domain> {
: _system(system), _expressions(system.variableCount(), NULL), _strategy(system.maxExpressionCount(), 0) {
}
+ ~MaxStrategy() {
+ for (int i = 0, length = _system.variableCount();
+ i < length;
+ ++i) {
+ Expression<Domain>* expr = _expressions[_system.variable(i)];
+ if (expr)
+ delete expr;
+ }
+ }
+
const Expression<Domain>* operator[](const Variable<Domain>& v) const {
if (_expressions[v] == NULL) {
Expression<Domain>* expression = new MaxStrategyExpression<Domain>(*_system[v], _strategy);
@@ -92,29 +102,62 @@ struct MaxStrategy : public EquationSystem<Domain> {
return _system.equalAssignments(l, r);
}
- void improve(const VariableAssignment<Domain>& rho) {
- for (unsigned int i = 0, length = _system.maxExpressionCount();
- i < length;
- ++i) {
- MaxExpression<Domain>& expr = _system.maxExpression(i);
- Domain bestValue = MaxStrategyExpression<Domain>(expr, _strategy).eval(rho);
- unsigned int bestIndex = this->get(expr);
-
- // this relies on the fact that an expression will only be proessed after the expressions
- // it depends on (which should always be true, as they form a DAG)
- const std::vector<Expression<Domain>*> args = expr.arguments();
- for (unsigned int j = 0, length = args.size();
- j < length;
- ++j) {
- const Domain value = MaxStrategyExpression<Domain>(*args[j], _strategy).eval(rho);
- if (bestValue < value) {
- bestValue = value;
- bestIndex = j;
+
+ struct ImprovementOperator {
+ virtual ~ImprovementOperator() { }
+ virtual bool improve(MaxStrategy<Domain>&, const VariableAssignment<Domain>&) const = 0;
+ };
+ bool improve(const ImprovementOperator& op, const VariableAssignment<Domain>& rho) {
+ return op.improve(*this, rho);
+ }
+
+ struct NaiveImprovementOperator : public ImprovementOperator {
+ bool improve(MaxStrategy<Domain>& strat, const VariableAssignment<Domain>& rho) const {
+ bool changed = false;
+ for (unsigned int i = 0, length = strat._system.maxExpressionCount();
+ i < length;
+ ++i) {
+ MaxExpression<Domain>& expr = strat._system.maxExpression(i);
+ Domain bestValue = MaxStrategyExpression<Domain>(expr, strat._strategy).eval(rho);
+ unsigned int lastIndex= strat.get(expr);
+ unsigned int bestIndex = strat.get(expr);
+
+ // this relies on the fact that an expression will only be proessed after the expressions
+ // it depends on (which should always be true, as they form a DAG)
+ const std::vector<Expression<Domain>*> args = expr.arguments();
+ for (unsigned int j = 0, length = args.size();
+ j < length;
+ ++j) {
+ const Domain value = MaxStrategyExpression<Domain>(*args[j], strat._strategy).eval(rho);
+ if (bestValue < value) {
+ bestValue = value;
+ bestIndex = j;
+ }
+ }
+ if (bestIndex != lastIndex) {
+ changed = true;
+ strat.set(expr, bestIndex);
}
}
- this->set(expr, bestIndex);
+ return changed;
}
- }
+ };
+
+ struct RepeatedImprovementOperator : public ImprovementOperator {
+ RepeatedImprovementOperator(const ImprovementOperator& op)
+ : _subImprovement(op) { }
+ bool improve(MaxStrategy<Domain>& strat, const VariableAssignment<Domain>& rho) const {
+ if (_subImprovement.improve(strat, rho)) {
+ VariableAssignment<Domain>* rho2 = strat.eval(rho);
+ improve(strat, *rho2);
+ delete rho2;
+ return true;
+ }
+ return false;
+ }
+ private:
+ const ImprovementOperator& _subImprovement;
+ };
void print(std::ostream& cout) const {
cout << _system << std::endl;
diff --git a/impl/main.cpp b/impl/main.cpp
index 40cae42..6546444 100644
--- a/impl/main.cpp
+++ b/impl/main.cpp
@@ -93,13 +93,33 @@ void treeToSystem(pANTLR3_BASE_TREE node, ConcreteEquationSystem<T>& system) {
typedef Complete<int> ZBar;
int main (int argc, char* argv[]) {
+ if (argc <= 3) {
+ cout << "Usage: " << argv[0] << " filename naive|smart naive|repeat" << endl;
+ exit(1);
+ }
FixpointAlgorithm<ZBar>* algorithm = NULL;
- if (argc > 2 && !strcmp(argv[2], "naive")) {
+ if (!strcmp(argv[2], "naive")) {
algorithm = new NaiveFixpointAlgorithm<ZBar>();
cout << "Naive fixpoint" << endl;
- } else {
+ } else if (!strcmp(argv[2], "smart")) {
algorithm = new SmartFixpointAlgorithm<ZBar>();
cout << "Smart fixpoint" << endl;
+ } else {
+ cout << "Unknown fixpoint algorithm." << endl;
+ }
+ MaxStrategy<ZBar>::ImprovementOperator* naiveImprovement = new MaxStrategy<ZBar>::NaiveImprovementOperator();
+ MaxStrategy<ZBar>::ImprovementOperator* improvement = NULL;
+ if (!strcmp(argv[3], "repeat")) {
+ improvement = new MaxStrategy<ZBar>::RepeatedImprovementOperator(*naiveImprovement);
+ cout << "Repeated strategy improvement" << endl;
+ } else if (!strcmp(argv[3], "naive")) {
+ improvement = naiveImprovement;
+ cout << "Naive strategy improvement" << endl;
+ } else {
+ cout << "Unknown strategy improvement algorithm." << endl;
+ }
+ if (!improvement || !algorithm) {
+ exit(1);
}
pANTLR3_INPUT_STREAM input;
@@ -119,21 +139,19 @@ int main (int argc, char* argv[]) {
// DO MORE HERE
cout << system << endl;
- VariableAssignment<ZBar>* prev = NULL;
- VariableAssignment<ZBar>* result = system.assignment(-infinity<ZBar>());
+ VariableAssignment<ZBar>* result = NULL;
MaxStrategy<ZBar> strategy(system);
+ bool changed;
do {
- if (prev) delete prev;
- prev = result;
+ if (result) delete result;
+ result = algorithm->maxFixpoint(strategy);
/*for (unsigned int i = 0, size = system.variableCount(); i < size; ++i) {
Variable<ZBar>& var = system.variable(i);
cout << var.name() << " = " << (*result)[var] << ", ";
}
cout << endl;*/
- strategy.improve(*prev);
- result = algorithm->maxFixpoint(strategy);
- } while(!system.equalAssignments(*prev, *result));
- if (prev) delete prev;
+ changed = strategy.improve(*improvement, *result);
+ } while(changed);
VariableAssignment<ZBar>* rho = result;
@@ -143,6 +161,12 @@ int main (int argc, char* argv[]) {
cout << var.name() << " = " << (*rho)[var] << endl;
}
+ delete result;
+ delete algorithm;
+ if (naiveImprovement != improvement)
+ delete improvement;
+ delete naiveImprovement;
+
parser -> free(parser);
tokens -> free(tokens);
lex -> free(lex);
diff --git a/impl/systems/constant-system.eqns b/impl/systems/constant-system.eqns
new file mode 100644
index 0000000..7d4290a
--- /dev/null
+++ b/impl/systems/constant-system.eqns
@@ -0,0 +1 @@
+x = 1
diff --git a/impl/systems/size-ten b/impl/systems/example.eqns
index 71ee74a..71ee74a 100644
--- a/impl/systems/size-ten
+++ b/impl/systems/example.eqns
diff --git a/impl/systems/generate-fib.py b/impl/systems/generate-fib.py
new file mode 100644
index 0000000..0263fff
--- /dev/null
+++ b/impl/systems/generate-fib.py
@@ -0,0 +1,6 @@
+
+print 'x0 = 0'
+print 'x1 = 1'
+for i in xrange(10000):
+ #print 'x' + str(i+2) + " = x" + str(i) + " + x" + str(i+1)
+ print 'x%d = x%d + x%d' % (i+2, i, i+1)
diff --git a/impl/antlr/generate.py b/impl/systems/generate-long.py
index 4513fe2..4513fe2 100644
--- a/impl/antlr/generate.py
+++ b/impl/systems/generate-long.py
diff --git a/impl/systems/generate-system.py b/impl/systems/generate-random.py
index cc67df2..cc67df2 100644
--- a/impl/systems/generate-system.py
+++ b/impl/systems/generate-random.py
diff --git a/impl/systems/long-fib.eqns b/impl/systems/long-fib.eqns
new file mode 100644
index 0000000..08a29d6
--- /dev/null
+++ b/impl/systems/long-fib.eqns
@@ -0,0 +1,1001 @@
+x0 = 0
+x1 = 1
+x2 = x0 + x1
+x3 = x1 + x2
+x4 = x2 + x3
+x5 = x3 + x4
+x6 = x4 + x5
+x7 = x5 + x6
+x8 = x6 + x7
+x9 = x7 + x8
+x10 = x8 + x9
+x11 = x9 + x10
+x12 = x10 + x11
+x13 = x11 + x12
+x14 = x12 + x13
+x15 = x13 + x14
+x16 = x14 + x15
+x17 = x15 + x16
+x18 = x16 + x17
+x19 = x17 + x18
+x20 = x18 + x19
+x21 = x19 + x20
+x22 = x20 + x21
+x23 = x21 + x22
+x24 = x22 + x23
+x25 = x23 + x24
+x26 = x24 + x25
+x27 = x25 + x26
+x28 = x26 + x27
+x29 = x27 + x28
+x30 = x28 + x29
+x31 = x29 + x30
+x32 = x30 + x31
+x33 = x31 + x32
+x34 = x32 + x33
+x35 = x33 + x34
+x36 = x34 + x35
+x37 = x35 + x36
+x38 = x36 + x37
+x39 = x37 + x38
+x40 = x38 + x39
+x41 = x39 + x40
+x42 = x40 + x41
+x43 = x41 + x42
+x44 = x42 + x43
+x45 = x43 + x44
+x46 = x44 + x45
+x47 = x45 + x46
+x48 = x46 + x47
+x49 = x47 + x48
+x50 = x48 + x49
+x51 = x49 + x50
+x52 = x50 + x51
+x53 = x51 + x52
+x54 = x52 + x53
+x55 = x53 + x54
+x56 = x54 + x55
+x57 = x55 + x56
+x58 = x56 + x57
+x59 = x57 + x58
+x60 = x58 + x59
+x61 = x59 + x60
+x62 = x60 + x61
+x63 = x61 + x62
+x64 = x62 + x63
+x65 = x63 + x64
+x66 = x64 + x65
+x67 = x65 + x66
+x68 = x66 + x67
+x69 = x67 + x68
+x70 = x68 + x69
+x71 = x69 + x70
+x72 = x70 + x71
+x73 = x71 + x72
+x74 = x72 + x73
+x75 = x73 + x74
+x76 = x74 + x75
+x77 = x75 + x76
+x78 = x76 + x77
+x79 = x77 + x78
+x80 = x78 + x79
+x81 = x79 + x80
+x82 = x80 + x81
+x83 = x81 + x82
+x84 = x82 + x83
+x85 = x83 + x84
+x86 = x84 + x85
+x87 = x85 + x86
+x88 = x86 + x87
+x89 = x87 + x88
+x90 = x88 + x89
+x91 = x89 + x90
+x92 = x90 + x91
+x93 = x91 + x92
+x94 = x92 + x93
+x95 = x93 + x94
+x96 = x94 + x95
+x97 = x95 + x96
+x98 = x96 + x97
+x99 = x97 + x98
+x100 = x98 + x99
+x101 = x99 + x100
+x102 = x100 + x101
+x103 = x101 + x102
+x104 = x102 + x103
+x105 = x103 + x104
+x106 = x104 + x105
+x107 = x105 + x106
+x108 = x106 + x107
+x109 = x107 + x108
+x110 = x108 + x109
+x111 = x109 + x110
+x112 = x110 + x111
+x113 = x111 + x112
+x114 = x112 + x113
+x115 = x113 + x114
+x116 = x114 + x115
+x117 = x115 + x116
+x118 = x116 + x117
+x119 = x117 + x118
+x120 = x118 + x119
+x121 = x119 + x120
+x122 = x120 + x121
+x123 = x121 + x122
+x124 = x122 + x123
+x125 = x123 + x124
+x126 = x124 + x125
+x127 = x125 + x126
+x128 = x126 + x127
+x129 = x127 + x128
+x130 = x128 + x129
+x131 = x129 + x130
+x132 = x130 + x131
+x133 = x131 + x132
+x134 = x132 + x133
+x135 = x133 + x134
+x136 = x134 + x135
+x137 = x135 + x136
+x138 = x136 + x137
+x139 = x137 + x138
+x140 = x138 + x139
+x141 = x139 + x140
+x142 = x140 + x141
+x143 = x141 + x142
+x144 = x142 + x143
+x145 = x143 + x144
+x146 = x144 + x145
+x147 = x145 + x146
+x148 = x146 + x147
+x149 = x147 + x148
+x150 = x148 + x149
+x151 = x149 + x150
+x152 = x150 + x151
+x153 = x151 + x152
+x154 = x152 + x153
+x155 = x153 + x154
+x156 = x154 + x155
+x157 = x155 + x156
+x158 = x156 + x157
+x159 = x157 + x158
+x160 = x158 + x159
+x161 = x159 + x160
+x162 = x160 + x161
+x163 = x161 + x162
+x164 = x162 + x163
+x165 = x163 + x164
+x166 = x164 + x165
+x167 = x165 + x166
+x168 = x166 + x167
+x169 = x167 + x168
+x170 = x168 + x169
+x171 = x169 + x170
+x172 = x170 + x171
+x173 = x171 + x172
+x174 = x172 + x173
+x175 = x173 + x174
+x176 = x174 + x175
+x177 = x175 + x176
+x178 = x176 + x177
+x179 = x177 + x178
+x180 = x178 + x179
+x181 = x179 + x180
+x182 = x180 + x181
+x183 = x181 + x182
+x184 = x182 + x183
+x185 = x183 + x184
+x186 = x184 + x185
+x187 = x185 + x186
+x188 = x186 + x187
+x189 = x187 + x188
+x190 = x188 + x189
+x191 = x189 + x190
+x192 = x190 + x191
+x193 = x191 + x192
+x194 = x192 + x193
+x195 = x193 + x194
+x196 = x194 + x195
+x197 = x195 + x196
+x198 = x196 + x197
+x199 = x197 + x198
+x200 = x198 + x199
+x201 = x199 + x200
+x202 = x200 + x201
+x203 = x201 + x202
+x204 = x202 + x203
+x205 = x203 + x204
+x206 = x204 + x205
+x207 = x205 + x206
+x208 = x206 + x207
+x209 = x207 + x208
+x210 = x208 + x209
+x211 = x209 + x210
+x212 = x210 + x211
+x213 = x211 + x212
+x214 = x212 + x213
+x215 = x213 + x214
+x216 = x214 + x215
+x217 = x215 + x216
+x218 = x216 + x217
+x219 = x217 + x218
+x220 = x218 + x219
+x221 = x219 + x220
+x222 = x220 + x221
+x223 = x221 + x222
+x224 = x222 + x223
+x225 = x223 + x224
+x226 = x224 + x225
+x227 = x225 + x226
+x228 = x226 + x227
+x229 = x227 + x228
+x230 = x228 + x229
+x231 = x229 + x230
+x232 = x230 + x231
+x233 = x231 + x232
+x234 = x232 + x233
+x235 = x233 + x234
+x236 = x234 + x235
+x237 = x235 + x236
+x238 = x236 + x237
+x239 = x237 + x238
+x240 = x238 + x239
+x241 = x239 + x240
+x242 = x240 + x241
+x243 = x241 + x242
+x244 = x242 + x243
+x245 = x243 + x244
+x246 = x244 + x245
+x247 = x245 + x246
+x248 = x246 + x247
+x249 = x247 + x248
+x250 = x248 + x249
+x251 = x249 + x250
+x252 = x250 + x251
+x253 = x251 + x252
+x254 = x252 + x253
+x255 = x253 + x254
+x256 = x254 + x255
+x257 = x255 + x256
+x258 = x256 + x257
+x259 = x257 + x258
+x260 = x258 + x259
+x261 = x259 + x260
+x262 = x260 + x261
+x263 = x261 + x262
+x264 = x262 + x263
+x265 = x263 + x264
+x266 = x264 + x265
+x267 = x265 + x266
+x268 = x266 + x267
+x269 = x267 + x268
+x270 = x268 + x269
+x271 = x269 + x270
+x272 = x270 + x271
+x273 = x271 + x272
+x274 = x272 + x273
+x275 = x273 + x274
+x276 = x274 + x275
+x277 = x275 + x276
+x278 = x276 + x277
+x279 = x277 + x278
+x280 = x278 + x279
+x281 = x279 + x280
+x282 = x280 + x281
+x283 = x281 + x282
+x284 = x282 + x283
+x285 = x283 + x284
+x286 = x284 + x285
+x287 = x285 + x286
+x288 = x286 + x287
+x289 = x287 + x288
+x290 = x288 + x289
+x291 = x289 + x290
+x292 = x290 + x291
+x293 = x291 + x292
+x294 = x292 + x293
+x295 = x293 + x294
+x296 = x294 + x295
+x297 = x295 + x296
+x298 = x296 + x297
+x299 = x297 + x298
+x300 = x298 + x299
+x301 = x299 + x300
+x302 = x300 + x301
+x303 = x301 + x302
+x304 = x302 + x303
+x305 = x303 + x304
+x306 = x304 + x305
+x307 = x305 + x306
+x308 = x306 + x307
+x309 = x307 + x308
+x310 = x308 + x309
+x311 = x309 + x310
+x312 = x310 + x311
+x313 = x311 + x312
+x314 = x312 + x313
+x315 = x313 + x314
+x316 = x314 + x315
+x317 = x315 + x316
+x318 = x316 + x317
+x319 = x317 + x318
+x320 = x318 + x319
+x321 = x319 + x320
+x322 = x320 + x321
+x323 = x321 + x322
+x324 = x322 + x323
+x325 = x323 + x324
+x326 = x324 + x325
+x327 = x325 + x326
+x328 = x326 + x327
+x329 = x327 + x328
+x330 = x328 + x329
+x331 = x329 + x330
+x332 = x330 + x331
+x333 = x331 + x332
+x334 = x332 + x333
+x335 = x333 + x334
+x336 = x334 + x335
+x337 = x335 + x336
+x338 = x336 + x337
+x339 = x337 + x338
+x340 = x338 + x339
+x341 = x339 + x340
+x342 = x340 + x341
+x343 = x341 + x342
+x344 = x342 + x343
+x345 = x343 + x344
+x346 = x344 + x345
+x347 = x345 + x346
+x348 = x346 + x347
+x349 = x347 + x348
+x350 = x348 + x349
+x351 = x349 + x350
+x352 = x350 + x351
+x353 = x351 + x352
+x354 = x352 + x353
+x355 = x353 + x354
+x356 = x354 + x355
+x357 = x355 + x356
+x358 = x356 + x357
+x359 = x357 + x358
+x360 = x358 + x359
+x361 = x359 + x360
+x362 = x360 + x361
+x363 = x361 + x362
+x364 = x362 + x363
+x365 = x363 + x364
+x366 = x364 + x365
+x367 = x365 + x366
+x368 = x366 + x367
+x369 = x367 + x368
+x370 = x368 + x369
+x371 = x369 + x370
+x372 = x370 + x371
+x373 = x371 + x372
+x374 = x372 + x373
+x375 = x373 + x374
+x376 = x374 + x375
+x377 = x375 + x376
+x378 = x376 + x377
+x379 = x377 + x378
+x380 = x378 + x379
+x381 = x379 + x380
+x382 = x380 + x381
+x383 = x381 + x382
+x384 = x382 + x383
+x385 = x383 + x384
+x386 = x384 + x385
+x387 = x385 + x386
+x388 = x386 + x387
+x389 = x387 + x388
+x390 = x388 + x389
+x391 = x389 + x390
+x392 = x390 + x391
+x393 = x391 + x392
+x394 = x392 + x393
+x395 = x393 + x394
+x396 = x394 + x395
+x397 = x395 + x396
+x398 = x396 + x397
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+x499 = x497 + x498
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+x504 = x502 + x503
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+x585 = x583 + x584
+x586 = x584 + x585
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+x593 = x591 + x592
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+x599 = x597 + x598
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+x614 = x612 + x613
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+x619 = x617 + x618
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+x621 = x619 + x620
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+x623 = x621 + x622
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+x628 = x626 + x627
+x629 = x627 + x628
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+x632 = x630 + x631
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+x639 = x637 + x638
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+x883 = x881 + x882
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+x898 = x896 + x897
+x899 = x897 + x898
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+x904 = x902 + x903
+x905 = x903 + x904
+x906 = x904 + x905
+x907 = x905 + x906
+x908 = x906 + x907
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+x910 = x908 + x909
+x911 = x909 + x910
+x912 = x910 + x911
+x913 = x911 + x912
+x914 = x912 + x913
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+x916 = x914 + x915
+x917 = x915 + x916
+x918 = x916 + x917
+x919 = x917 + x918
+x920 = x918 + x919
+x921 = x919 + x920
+x922 = x920 + x921
+x923 = x921 + x922
+x924 = x922 + x923
+x925 = x923 + x924
+x926 = x924 + x925
+x927 = x925 + x926
+x928 = x926 + x927
+x929 = x927 + x928
+x930 = x928 + x929
+x931 = x929 + x930
+x932 = x930 + x931
+x933 = x931 + x932
+x934 = x932 + x933
+x935 = x933 + x934
+x936 = x934 + x935
+x937 = x935 + x936
+x938 = x936 + x937
+x939 = x937 + x938
+x940 = x938 + x939
+x941 = x939 + x940
+x942 = x940 + x941
+x943 = x941 + x942
+x944 = x942 + x943
+x945 = x943 + x944
+x946 = x944 + x945
+x947 = x945 + x946
+x948 = x946 + x947
+x949 = x947 + x948
+x950 = x948 + x949
+x951 = x949 + x950
+x952 = x950 + x951
+x953 = x951 + x952
+x954 = x952 + x953
+x955 = x953 + x954
+x956 = x954 + x955
+x957 = x955 + x956
+x958 = x956 + x957
+x959 = x957 + x958
+x960 = x958 + x959
+x961 = x959 + x960
+x962 = x960 + x961
+x963 = x961 + x962
+x964 = x962 + x963
+x965 = x963 + x964
+x966 = x964 + x965
+x967 = x965 + x966
+x968 = x966 + x967
+x969 = x967 + x968
+x970 = x968 + x969
+x971 = x969 + x970
+x972 = x970 + x971
+x973 = x971 + x972
+x974 = x972 + x973
+x975 = x973 + x974
+x976 = x974 + x975
+x977 = x975 + x976
+x978 = x976 + x977
+x979 = x977 + x978
+x980 = x978 + x979
+x981 = x979 + x980
+x982 = x980 + x981
+x983 = x981 + x982
+x984 = x982 + x983
+x985 = x983 + x984
+x986 = x984 + x985
+x987 = x985 + x986
+x988 = x986 + x987
+x989 = x987 + x988
+x990 = x988 + x989
+x991 = x989 + x990
+x992 = x990 + x991
+x993 = x991 + x992
+x994 = x992 + x993
+x995 = x993 + x994
+x996 = x994 + x995
+x997 = x995 + x996
+x998 = x996 + x997
+x999 = x997 + x998
+x1000 = x998 + x999
diff --git a/impl/systems/long-fixpoint b/impl/systems/long-fixpoint.eqns
index 5838910..5838910 100644
--- a/impl/systems/long-fixpoint
+++ b/impl/systems/long-fixpoint.eqns
diff --git a/impl/systems/min-test b/impl/systems/min-test
deleted file mode 100644
index a05a662..0000000
--- a/impl/systems/min-test
+++ /dev/null
@@ -1,3 +0,0 @@
-x1 = min(1, x1)
-x2 = min(x2+1, x3)
-x3 = 0
diff --git a/impl/systems/small b/impl/systems/minimal.eqns
index 3c40ed9..3c40ed9 100644
--- a/impl/systems/small
+++ b/impl/systems/minimal.eqns
diff --git a/impl/systems/random-system b/impl/systems/random-system
deleted file mode 100644
index 506c18a..0000000
--- a/impl/systems/random-system
+++ /dev/null
@@ -1 +0,0 @@
-x = max()
generated by cgit v1.2.3 (git 2.46.2) at 2024-12-25 07:07:39 +0000