/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/stateful01-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 12:57:44,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 12:57:44,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 12:57:44,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 12:57:44,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 12:57:44,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 12:57:44,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 12:57:44,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 12:57:44,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 12:57:44,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 12:57:44,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 12:57:44,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 12:57:44,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 12:57:44,255 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 12:57:44,256 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 12:57:44,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 12:57:44,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 12:57:44,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 12:57:44,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 12:57:44,270 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 12:57:44,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 12:57:44,272 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 12:57:44,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 12:57:44,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 12:57:44,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-25 12:57:44,280 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-25 12:57:44,280 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-25 12:57:44,281 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-25 12:57:44,282 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-25 12:57:44,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-25 12:57:44,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 12:57:44,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 12:57:44,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 12:57:44,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 12:57:44,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 12:57:44,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 12:57:44,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 12:57:44,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 12:57:44,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 12:57:44,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 12:57:44,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 12:57:44,292 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2021-03-25 12:57:44,324 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 12:57:44,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 12:57:44,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 12:57:44,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 12:57:44,328 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 12:57:44,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 12:57:44,328 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 12:57:44,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 12:57:44,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 12:57:44,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 12:57:44,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 12:57:44,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 12:57:44,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 12:57:44,330 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 12:57:44,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 12:57:44,330 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 12:57:44,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 12:57:44,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 12:57:44,331 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 12:57:44,331 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 12:57:44,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 12:57:44,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 12:57:44,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 12:57:44,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 12:57:44,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 12:57:44,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 12:57:44,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 12:57:44,332 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 12:57:44,332 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 12:57:44,332 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 12:57:44,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 12:57:44,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 12:57:44,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 12:57:44,656 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 12:57:44,656 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 12:57:44,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-2.i [2021-03-25 12:57:44,724 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f0dc49dd/d2a1534d22c24ddeb88b259b0cf0eb28/FLAG19345897e [2021-03-25 12:57:45,168 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 12:57:45,168 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i [2021-03-25 12:57:45,187 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f0dc49dd/d2a1534d22c24ddeb88b259b0cf0eb28/FLAG19345897e [2021-03-25 12:57:45,205 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f0dc49dd/d2a1534d22c24ddeb88b259b0cf0eb28 [2021-03-25 12:57:45,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 12:57:45,209 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 12:57:45,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 12:57:45,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 12:57:45,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 12:57:45,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 12:57:45" (1/1) ... [2021-03-25 12:57:45,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5daa064e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 12:57:45, skipping insertion in model container [2021-03-25 12:57:45,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 12:57:45" (1/1) ... [2021-03-25 12:57:45,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 12:57:45,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 12:57:45,611 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i[30826,30839] [2021-03-25 12:57:45,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 12:57:45,621 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 12:57:45,652 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i[30826,30839] [2021-03-25 12:57:45,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 12:57:45,712 INFO L208 MainTranslator]: Completed translation [2021-03-25 12:57:45,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 12:57:45 WrapperNode [2021-03-25 12:57:45,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 12:57:45,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 12:57:45,714 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 12:57:45,714 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 12:57:45,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 12:57:45" (1/1) ... [2021-03-25 12:57:45,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 12:57:45" (1/1) ... [2021-03-25 12:57:45,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 12:57:45,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 12:57:45,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 12:57:45,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 12:57:45,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 12:57:45" (1/1) ... [2021-03-25 12:57:45,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 12:57:45" (1/1) ... [2021-03-25 12:57:45,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 12:57:45" (1/1) ... [2021-03-25 12:57:45,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 12:57:45" (1/1) ... [2021-03-25 12:57:45,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 12:57:45" (1/1) ... [2021-03-25 12:57:45,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 12:57:45" (1/1) ... [2021-03-25 12:57:45,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 12:57:45" (1/1) ... [2021-03-25 12:57:45,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 12:57:45,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 12:57:45,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 12:57:45,762 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 12:57:45,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 12:57:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 12:57:45,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-25 12:57:45,833 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-25 12:57:45,833 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-25 12:57:45,834 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-25 12:57:45,834 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-25 12:57:45,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 12:57:45,834 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-25 12:57:45,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 12:57:45,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 12:57:45,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 12:57:45,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 12:57:45,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 12:57:45,837 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 12:57:46,289 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 12:57:46,289 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-25 12:57:46,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 12:57:46 BoogieIcfgContainer [2021-03-25 12:57:46,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 12:57:46,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 12:57:46,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 12:57:46,295 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 12:57:46,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 12:57:45" (1/3) ... [2021-03-25 12:57:46,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@380f3660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 12:57:46, skipping insertion in model container [2021-03-25 12:57:46,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 12:57:45" (2/3) ... [2021-03-25 12:57:46,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@380f3660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 12:57:46, skipping insertion in model container [2021-03-25 12:57:46,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 12:57:46" (3/3) ... [2021-03-25 12:57:46,298 INFO L111 eAbstractionObserver]: Analyzing ICFG stateful01-2.i [2021-03-25 12:57:46,306 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 12:57:46,310 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 12:57:46,310 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 12:57:46,345 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,346 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,346 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,346 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,346 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,346 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,346 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,347 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,347 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,347 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,347 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,347 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,348 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,348 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,348 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,348 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,348 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,348 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,349 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,349 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,349 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,349 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,349 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,349 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,349 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,350 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,350 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,351 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,351 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,351 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,355 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,356 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,356 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,356 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,356 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,356 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,357 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,357 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,357 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,357 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,357 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,358 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,358 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,358 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,358 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,358 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,359 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,359 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,359 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,359 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,359 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,359 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,364 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,364 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,364 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,365 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,365 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,365 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,365 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,365 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,373 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,373 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,374 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,374 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,374 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,374 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 12:57:46,381 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-25 12:57:46,397 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-25 12:57:46,426 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 12:57:46,427 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 12:57:46,427 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 12:57:46,427 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 12:57:46,427 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 12:57:46,427 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 12:57:46,428 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 12:57:46,428 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 12:57:46,441 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 83 transitions, 188 flow [2021-03-25 12:57:46,479 INFO L129 PetriNetUnfolder]: 2/83 cut-off events. [2021-03-25 12:57:46,479 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-25 12:57:46,481 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 83 events. 2/83 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 28. Up to 3 conditions per place. [2021-03-25 12:57:46,481 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 83 transitions, 188 flow [2021-03-25 12:57:46,485 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 71 transitions, 160 flow [2021-03-25 12:57:46,486 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 12:57:46,495 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 71 transitions, 160 flow [2021-03-25 12:57:46,497 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 71 transitions, 160 flow [2021-03-25 12:57:46,498 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 71 transitions, 160 flow [2021-03-25 12:57:46,517 INFO L129 PetriNetUnfolder]: 1/73 cut-off events. [2021-03-25 12:57:46,517 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-25 12:57:46,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 73 events. 1/73 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 19. Up to 3 conditions per place. [2021-03-25 12:57:46,520 INFO L142 LiptonReduction]: Number of co-enabled transitions 680 [2021-03-25 12:57:48,635 INFO L154 LiptonReduction]: Checked pairs total: 1636 [2021-03-25 12:57:48,636 INFO L156 LiptonReduction]: Total number of compositions: 42 [2021-03-25 12:57:48,637 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2152 [2021-03-25 12:57:48,648 INFO L129 PetriNetUnfolder]: 1/29 cut-off events. [2021-03-25 12:57:48,648 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-25 12:57:48,648 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:57:48,648 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:57:48,649 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 12:57:48,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:57:48,653 INFO L82 PathProgramCache]: Analyzing trace with hash 986718324, now seen corresponding path program 1 times [2021-03-25 12:57:48,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:57:48,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67694953] [2021-03-25 12:57:48,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:57:48,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:57:48,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:57:48,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 12:57:48,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:57:48,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 12:57:48,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:57:48,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 12:57:48,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:57:48,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 12:57:48,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:57:48,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 12:57:48,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:57:48,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67694953] [2021-03-25 12:57:48,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:57:48,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 12:57:48,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152584790] [2021-03-25 12:57:48,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 12:57:48,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:57:48,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 12:57:48,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-25 12:57:48,929 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 125 [2021-03-25 12:57:48,932 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 29 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:57:48,932 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:57:48,932 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 125 [2021-03-25 12:57:48,933 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:57:48,975 INFO L129 PetriNetUnfolder]: 0/29 cut-off events. [2021-03-25 12:57:48,975 INFO L130 PetriNetUnfolder]: For 6/8 co-relation queries the response was YES. [2021-03-25 12:57:48,975 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 29 events. 0/29 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 2/31 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-25 12:57:48,976 INFO L132 encePairwiseOnDemand]: 120/125 looper letters, 7 selfloop transitions, 4 changer transitions 1/28 dead transitions. [2021-03-25 12:57:48,976 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 28 transitions, 93 flow [2021-03-25 12:57:48,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 12:57:48,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 12:57:48,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 377 transitions. [2021-03-25 12:57:48,987 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6032 [2021-03-25 12:57:48,988 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 377 transitions. [2021-03-25 12:57:48,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 377 transitions. [2021-03-25 12:57:48,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:57:48,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 377 transitions. [2021-03-25 12:57:48,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:57:49,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:57:49,001 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:57:49,002 INFO L185 Difference]: Start difference. First operand has 34 places, 29 transitions, 76 flow. Second operand 5 states and 377 transitions. [2021-03-25 12:57:49,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 28 transitions, 93 flow [2021-03-25 12:57:49,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 28 transitions, 83 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 12:57:49,006 INFO L241 Difference]: Finished difference. Result has 34 places, 27 transitions, 66 flow [2021-03-25 12:57:49,007 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=66, PETRI_PLACES=34, PETRI_TRANSITIONS=27} [2021-03-25 12:57:49,008 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 0 predicate places. [2021-03-25 12:57:49,008 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 12:57:49,008 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 27 transitions, 66 flow [2021-03-25 12:57:49,008 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 27 transitions, 66 flow [2021-03-25 12:57:49,009 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 27 transitions, 66 flow [2021-03-25 12:57:49,013 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2021-03-25 12:57:49,013 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 12:57:49,014 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 27 events. 0/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 12:57:49,014 INFO L142 LiptonReduction]: Number of co-enabled transitions 180 [2021-03-25 12:57:49,333 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2021-03-25 12:57:49,601 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2021-03-25 12:57:49,848 INFO L154 LiptonReduction]: Checked pairs total: 708 [2021-03-25 12:57:49,849 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 12:57:49,849 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 841 [2021-03-25 12:57:49,850 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 24 transitions, 60 flow [2021-03-25 12:57:49,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:57:49,850 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:57:49,850 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:57:49,851 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 12:57:49,851 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 12:57:49,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:57:49,851 INFO L82 PathProgramCache]: Analyzing trace with hash -319631292, now seen corresponding path program 1 times [2021-03-25 12:57:49,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:57:49,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287628003] [2021-03-25 12:57:49,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:57:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:57:49,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:57:49,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 12:57:49,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:57:49,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:57:49,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:57:49,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:57:49,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:57:49,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:57:49,963 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-25 12:57:49,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:57:49,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:57:49,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287628003] [2021-03-25 12:57:49,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:57:49,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 12:57:49,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713484101] [2021-03-25 12:57:49,976 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 12:57:49,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:57:49,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 12:57:49,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 12:57:49,979 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 128 [2021-03-25 12:57:49,980 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 24 transitions, 60 flow. Second operand has 6 states, 6 states have (on average 108.16666666666667) internal successors, (649), 6 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:57:49,980 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:57:49,980 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 128 [2021-03-25 12:57:49,980 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:57:50,042 INFO L129 PetriNetUnfolder]: 1/45 cut-off events. [2021-03-25 12:57:50,042 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 12:57:50,042 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 45 events. 1/45 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 109 event pairs, 0 based on Foata normal form. 1/45 useless extension candidates. Maximal degree in co-relation 45. Up to 5 conditions per place. [2021-03-25 12:57:50,042 INFO L132 encePairwiseOnDemand]: 123/128 looper letters, 4 selfloop transitions, 4 changer transitions 2/28 dead transitions. [2021-03-25 12:57:50,043 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 28 transitions, 88 flow [2021-03-25 12:57:50,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 12:57:50,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 12:57:50,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 653 transitions. [2021-03-25 12:57:50,046 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8502604166666666 [2021-03-25 12:57:50,046 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 653 transitions. [2021-03-25 12:57:50,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 653 transitions. [2021-03-25 12:57:50,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:57:50,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 653 transitions. [2021-03-25 12:57:50,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 108.83333333333333) internal successors, (653), 6 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:57:50,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 128.0) internal successors, (896), 7 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:57:50,051 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 128.0) internal successors, (896), 7 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:57:50,051 INFO L185 Difference]: Start difference. First operand has 31 places, 24 transitions, 60 flow. Second operand 6 states and 653 transitions. [2021-03-25 12:57:50,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 28 transitions, 88 flow [2021-03-25 12:57:50,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 28 transitions, 80 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 12:57:50,052 INFO L241 Difference]: Finished difference. Result has 35 places, 26 transitions, 75 flow [2021-03-25 12:57:50,053 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=75, PETRI_PLACES=35, PETRI_TRANSITIONS=26} [2021-03-25 12:57:50,053 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 1 predicate places. [2021-03-25 12:57:50,053 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 12:57:50,053 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 26 transitions, 75 flow [2021-03-25 12:57:50,054 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 26 transitions, 75 flow [2021-03-25 12:57:50,054 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 26 transitions, 75 flow [2021-03-25 12:57:50,058 INFO L129 PetriNetUnfolder]: 1/38 cut-off events. [2021-03-25 12:57:50,058 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 12:57:50,058 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 38 events. 1/38 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 50. Up to 5 conditions per place. [2021-03-25 12:57:50,059 INFO L142 LiptonReduction]: Number of co-enabled transitions 172 [2021-03-25 12:57:50,434 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 132 [2021-03-25 12:57:50,600 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-03-25 12:57:51,019 WARN L205 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 132 [2021-03-25 12:57:51,216 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-03-25 12:57:51,223 INFO L154 LiptonReduction]: Checked pairs total: 386 [2021-03-25 12:57:51,223 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 12:57:51,223 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1170 [2021-03-25 12:57:51,224 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 25 transitions, 75 flow [2021-03-25 12:57:51,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 108.16666666666667) internal successors, (649), 6 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:57:51,225 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:57:51,225 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:57:51,225 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 12:57:51,225 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 12:57:51,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:57:51,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1895920030, now seen corresponding path program 1 times [2021-03-25 12:57:51,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:57:51,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316247137] [2021-03-25 12:57:51,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:57:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:57:51,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:57:51,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 12:57:51,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:57:51,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:57:51,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:57:51,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:57:51,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:57:51,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:57:51,311 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-25 12:57:51,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:57:51,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:57:51,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316247137] [2021-03-25 12:57:51,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:57:51,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 12:57:51,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228738655] [2021-03-25 12:57:51,319 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 12:57:51,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:57:51,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 12:57:51,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 12:57:51,324 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 130 [2021-03-25 12:57:51,324 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 75 flow. Second operand has 6 states, 6 states have (on average 108.0) internal successors, (648), 6 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:57:51,325 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:57:51,325 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 130 [2021-03-25 12:57:51,325 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:57:51,369 INFO L129 PetriNetUnfolder]: 0/42 cut-off events. [2021-03-25 12:57:51,369 INFO L130 PetriNetUnfolder]: For 14/23 co-relation queries the response was YES. [2021-03-25 12:57:51,369 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 42 events. 0/42 cut-off events. For 14/23 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 100 event pairs, 0 based on Foata normal form. 4/46 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-25 12:57:51,369 INFO L132 encePairwiseOnDemand]: 124/130 looper letters, 2 selfloop transitions, 4 changer transitions 3/26 dead transitions. [2021-03-25 12:57:51,369 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 26 transitions, 99 flow [2021-03-25 12:57:51,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 12:57:51,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 12:57:51,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 759 transitions. [2021-03-25 12:57:51,372 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8340659340659341 [2021-03-25 12:57:51,372 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 759 transitions. [2021-03-25 12:57:51,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 759 transitions. [2021-03-25 12:57:51,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:57:51,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 759 transitions. [2021-03-25 12:57:51,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 108.42857142857143) internal successors, (759), 7 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:57:51,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 130.0) internal successors, (1040), 8 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:57:51,377 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 130.0) internal successors, (1040), 8 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:57:51,377 INFO L185 Difference]: Start difference. First operand has 32 places, 25 transitions, 75 flow. Second operand 7 states and 759 transitions. [2021-03-25 12:57:51,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 26 transitions, 99 flow [2021-03-25 12:57:51,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 26 transitions, 94 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 12:57:51,378 INFO L241 Difference]: Finished difference. Result has 37 places, 23 transitions, 70 flow [2021-03-25 12:57:51,378 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=70, PETRI_PLACES=37, PETRI_TRANSITIONS=23} [2021-03-25 12:57:51,378 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 3 predicate places. [2021-03-25 12:57:51,378 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 12:57:51,379 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 23 transitions, 70 flow [2021-03-25 12:57:51,379 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 23 transitions, 70 flow [2021-03-25 12:57:51,379 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 23 transitions, 70 flow [2021-03-25 12:57:51,382 INFO L129 PetriNetUnfolder]: 0/23 cut-off events. [2021-03-25 12:57:51,382 INFO L130 PetriNetUnfolder]: For 4/5 co-relation queries the response was YES. [2021-03-25 12:57:51,382 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 23 events. 0/23 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-25 12:57:51,383 INFO L142 LiptonReduction]: Number of co-enabled transitions 104 [2021-03-25 12:57:51,469 INFO L154 LiptonReduction]: Checked pairs total: 194 [2021-03-25 12:57:51,469 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 12:57:51,469 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 91 [2021-03-25 12:57:51,470 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 20 transitions, 64 flow [2021-03-25 12:57:51,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 108.0) internal successors, (648), 6 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:57:51,470 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:57:51,470 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:57:51,471 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 12:57:51,471 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 12:57:51,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:57:51,471 INFO L82 PathProgramCache]: Analyzing trace with hash 94748498, now seen corresponding path program 1 times [2021-03-25 12:57:51,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:57:51,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871124696] [2021-03-25 12:57:51,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:57:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:57:51,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:57:51,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 12:57:51,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:57:51,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:57:51,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:57:51,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 12:57:51,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:57:51,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871124696] [2021-03-25 12:57:51,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:57:51,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 12:57:51,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699462855] [2021-03-25 12:57:51,500 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 12:57:51,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:57:51,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 12:57:51,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 12:57:51,502 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 133 [2021-03-25 12:57:51,502 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 20 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:57:51,502 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:57:51,502 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 133 [2021-03-25 12:57:51,502 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:57:51,510 INFO L129 PetriNetUnfolder]: 0/6 cut-off events. [2021-03-25 12:57:51,510 INFO L130 PetriNetUnfolder]: For 10/13 co-relation queries the response was YES. [2021-03-25 12:57:51,510 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20 conditions, 6 events. 0/6 cut-off events. For 10/13 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 2/8 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 12:57:51,510 INFO L132 encePairwiseOnDemand]: 131/133 looper letters, 0 selfloop transitions, 0 changer transitions 6/6 dead transitions. [2021-03-25 12:57:51,510 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 6 transitions, 26 flow [2021-03-25 12:57:51,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 12:57:51,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 12:57:51,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 273 transitions. [2021-03-25 12:57:51,512 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6842105263157895 [2021-03-25 12:57:51,512 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 273 transitions. [2021-03-25 12:57:51,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 273 transitions. [2021-03-25 12:57:51,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:57:51,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 273 transitions. [2021-03-25 12:57:51,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:57:51,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:57:51,514 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:57:51,514 INFO L185 Difference]: Start difference. First operand has 33 places, 20 transitions, 64 flow. Second operand 3 states and 273 transitions. [2021-03-25 12:57:51,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 6 transitions, 26 flow [2021-03-25 12:57:51,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 6 transitions, 20 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-03-25 12:57:51,515 INFO L241 Difference]: Finished difference. Result has 14 places, 0 transitions, 0 flow [2021-03-25 12:57:51,515 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=16, PETRI_DIFFERENCE_MINUEND_PLACES=12, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=14, PETRI_TRANSITIONS=0} [2021-03-25 12:57:51,515 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, -20 predicate places. [2021-03-25 12:57:51,515 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 12:57:51,515 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 14 places, 0 transitions, 0 flow [2021-03-25 12:57:51,516 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 14 places, 0 transitions, 0 flow [2021-03-25 12:57:51,516 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 12:57:51,516 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 12:57:51,516 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 12:57:51,516 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-25 12:57:51,516 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 12:57:51,516 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:57:51,517 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:57:51,517 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-03-25 12:57:51,532 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 12:57:51,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:57:51,532 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 12:57:51,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 12:57:51 BasicIcfg [2021-03-25 12:57:51,536 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 12:57:51,536 INFO L168 Benchmark]: Toolchain (without parser) took 6327.10 ms. Allocated memory was 341.8 MB in the beginning and 463.5 MB in the end (delta: 121.6 MB). Free memory was 305.3 MB in the beginning and 204.6 MB in the end (delta: 100.7 MB). Peak memory consumption was 221.9 MB. Max. memory is 16.0 GB. [2021-03-25 12:57:51,537 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 341.8 MB. Free memory was 323.1 MB in the beginning and 323.0 MB in the end (delta: 78.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 12:57:51,537 INFO L168 Benchmark]: CACSL2BoogieTranslator took 501.18 ms. Allocated memory is still 341.8 MB. Free memory was 305.2 MB in the beginning and 306.0 MB in the end (delta: -878.2 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. [2021-03-25 12:57:51,538 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.29 ms. Allocated memory is still 341.8 MB. Free memory was 306.0 MB in the beginning and 302.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-25 12:57:51,538 INFO L168 Benchmark]: Boogie Preprocessor took 17.02 ms. Allocated memory is still 341.8 MB. Free memory was 302.9 MB in the beginning and 301.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 12:57:51,538 INFO L168 Benchmark]: RCFGBuilder took 529.20 ms. Allocated memory is still 341.8 MB. Free memory was 301.8 MB in the beginning and 275.6 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-03-25 12:57:51,539 INFO L168 Benchmark]: TraceAbstraction took 5243.00 ms. Allocated memory was 341.8 MB in the beginning and 463.5 MB in the end (delta: 121.6 MB). Free memory was 275.6 MB in the beginning and 204.6 MB in the end (delta: 71.0 MB). Peak memory consumption was 191.6 MB. Max. memory is 16.0 GB. [2021-03-25 12:57:51,541 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 341.8 MB. Free memory was 323.1 MB in the beginning and 323.0 MB in the end (delta: 78.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 501.18 ms. Allocated memory is still 341.8 MB. Free memory was 305.2 MB in the beginning and 306.0 MB in the end (delta: -878.2 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 30.29 ms. Allocated memory is still 341.8 MB. Free memory was 306.0 MB in the beginning and 302.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 17.02 ms. Allocated memory is still 341.8 MB. Free memory was 302.9 MB in the beginning and 301.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 529.20 ms. Allocated memory is still 341.8 MB. Free memory was 301.8 MB in the beginning and 275.6 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5243.00 ms. Allocated memory was 341.8 MB in the beginning and 463.5 MB in the end (delta: 121.6 MB). Free memory was 275.6 MB in the beginning and 204.6 MB in the end (delta: 71.0 MB). Peak memory consumption was 191.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2139.0ms, 76 PlacesBefore, 34 PlacesAfterwards, 71 TransitionsBefore, 29 TransitionsAfterwards, 680 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 42 TotalNumberOfCompositions, 1636 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 809, positive: 700, positive conditional: 0, positive unconditional: 700, negative: 109, negative conditional: 0, negative unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 417, positive: 386, positive conditional: 0, positive unconditional: 386, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 417, positive: 386, positive conditional: 0, positive unconditional: 386, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 417, positive: 374, positive conditional: 0, positive unconditional: 374, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 145, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 113, negative conditional: 0, negative unconditional: 113, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 809, positive: 314, positive conditional: 0, positive unconditional: 314, negative: 78, negative conditional: 0, negative unconditional: 78, unknown: 417, unknown conditional: 0, unknown unconditional: 417] , Statistics on independence cache: Total cache size (in pairs): 97, Positive cache size: 82, Positive conditional cache size: 0, Positive unconditional cache size: 82, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 840.3ms, 34 PlacesBefore, 31 PlacesAfterwards, 27 TransitionsBefore, 24 TransitionsAfterwards, 180 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 708 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 307, positive: 235, positive conditional: 0, positive unconditional: 235, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 17, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 17, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 22, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 307, positive: 220, positive conditional: 0, positive unconditional: 220, negative: 70, negative conditional: 0, negative unconditional: 70, unknown: 17, unknown conditional: 0, unknown unconditional: 17] , Statistics on independence cache: Total cache size (in pairs): 114, Positive cache size: 97, Positive conditional cache size: 0, Positive unconditional cache size: 97, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1169.4ms, 35 PlacesBefore, 32 PlacesAfterwards, 26 TransitionsBefore, 25 TransitionsAfterwards, 172 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 386 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 204, positive: 164, positive conditional: 0, positive unconditional: 164, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 19, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 19, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 204, positive: 145, positive conditional: 0, positive unconditional: 145, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 19, unknown conditional: 0, unknown unconditional: 19] , Statistics on independence cache: Total cache size (in pairs): 130, Positive cache size: 115, Positive conditional cache size: 0, Positive unconditional cache size: 115, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 89.9ms, 37 PlacesBefore, 33 PlacesAfterwards, 23 TransitionsBefore, 20 TransitionsAfterwards, 104 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 194 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 112, positive: 84, positive conditional: 0, positive unconditional: 84, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 112, positive: 76, positive conditional: 0, positive unconditional: 76, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 11, unknown conditional: 0, unknown unconditional: 11] , Statistics on independence cache: Total cache size (in pairs): 92, Positive cache size: 82, Positive conditional cache size: 0, Positive unconditional cache size: 82, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.9ms, 14 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 92, Positive cache size: 82, Positive conditional cache size: 0, Positive unconditional cache size: 82, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - PositiveResult [Line: 727]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 5110.6ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 230.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2213.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 16 SDtfs, 15 SDslu, 15 SDs, 0 SdLazy, 76 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 53.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 92.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 11.2ms SsaConstructionTime, 76.6ms SatisfiabilityAnalysisTime, 334.1ms InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 466 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...