/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe017_power.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 10:34:29,191 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 10:34:29,193 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 10:34:29,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 10:34:29,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 10:34:29,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 10:34:29,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 10:34:29,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 10:34:29,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 10:34:29,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 10:34:29,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 10:34:29,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 10:34:29,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 10:34:29,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 10:34:29,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 10:34:29,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 10:34:29,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 10:34:29,264 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 10:34:29,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 10:34:29,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 10:34:29,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 10:34:29,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 10:34:29,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 10:34:29,275 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 10:34:29,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 10:34:29,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 10:34:29,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 10:34:29,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 10:34:29,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 10:34:29,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 10:34:29,282 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 10:34:29,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 10:34:29,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 10:34:29,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 10:34:29,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 10:34:29,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 10:34:29,288 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 10:34:29,317 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 10:34:29,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 10:34:29,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 10:34:29,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 10:34:29,321 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 10:34:29,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 10:34:29,321 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 10:34:29,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 10:34:29,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 10:34:29,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 10:34:29,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 10:34:29,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 10:34:29,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 10:34:29,323 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 10:34:29,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 10:34:29,323 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 10:34:29,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 10:34:29,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 10:34:29,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 10:34:29,324 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 10:34:29,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 10:34:29,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:34:29,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 10:34:29,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 10:34:29,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 10:34:29,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 10:34:29,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 10:34:29,325 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 10:34:29,325 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 10:34:29,325 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 10:34:29,325 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 10:34:29,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 10:34:29,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 10:34:29,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 10:34:29,647 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 10:34:29,648 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 10:34:29,648 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_power.oepc.i [2021-03-26 10:34:29,711 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e4db1810/cf300794c9054ad49ef60efde444e00d/FLAG12a4ad437 [2021-03-26 10:34:30,269 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 10:34:30,270 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_power.oepc.i [2021-03-26 10:34:30,283 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e4db1810/cf300794c9054ad49ef60efde444e00d/FLAG12a4ad437 [2021-03-26 10:34:30,714 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e4db1810/cf300794c9054ad49ef60efde444e00d [2021-03-26 10:34:30,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 10:34:30,718 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 10:34:30,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 10:34:30,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 10:34:30,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 10:34:30,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:34:30" (1/1) ... [2021-03-26 10:34:30,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2010cd6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:34:30, skipping insertion in model container [2021-03-26 10:34:30,724 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:34:30" (1/1) ... [2021-03-26 10:34:30,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 10:34:30,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 10:34:30,903 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-wmm/safe017_power.oepc.i[952,965] [2021-03-26 10:34:31,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:34:31,092 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 10:34:31,110 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-wmm/safe017_power.oepc.i[952,965] [2021-03-26 10:34:31,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:34:31,214 INFO L208 MainTranslator]: Completed translation [2021-03-26 10:34:31,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:34:31 WrapperNode [2021-03-26 10:34:31,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 10:34:31,216 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 10:34:31,216 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 10:34:31,216 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 10:34:31,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:34:31" (1/1) ... [2021-03-26 10:34:31,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:34:31" (1/1) ... [2021-03-26 10:34:31,277 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 10:34:31,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 10:34:31,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 10:34:31,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 10:34:31,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:34:31" (1/1) ... [2021-03-26 10:34:31,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:34:31" (1/1) ... [2021-03-26 10:34:31,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:34:31" (1/1) ... [2021-03-26 10:34:31,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:34:31" (1/1) ... [2021-03-26 10:34:31,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:34:31" (1/1) ... [2021-03-26 10:34:31,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:34:31" (1/1) ... [2021-03-26 10:34:31,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:34:31" (1/1) ... [2021-03-26 10:34:31,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 10:34:31,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 10:34:31,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 10:34:31,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 10:34:31,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:34:31" (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 [2021-03-26 10:34:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 10:34:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 10:34:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 10:34:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 10:34:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 10:34:31,414 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 10:34:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 10:34:31,414 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 10:34:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 10:34:31,414 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 10:34:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 10:34:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 10:34:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 10:34:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 10:34:31,416 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 10:34:33,204 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 10:34:33,205 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-26 10:34:33,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:34:33 BoogieIcfgContainer [2021-03-26 10:34:33,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 10:34:33,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 10:34:33,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 10:34:33,211 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 10:34:33,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 10:34:30" (1/3) ... [2021-03-26 10:34:33,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90167ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:34:33, skipping insertion in model container [2021-03-26 10:34:33,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:34:31" (2/3) ... [2021-03-26 10:34:33,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90167ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:34:33, skipping insertion in model container [2021-03-26 10:34:33,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:34:33" (3/3) ... [2021-03-26 10:34:33,213 INFO L111 eAbstractionObserver]: Analyzing ICFG safe017_power.oepc.i [2021-03-26 10:34:33,219 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 10:34:33,224 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-26 10:34:33,225 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 10:34:33,254 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,254 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,254 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,254 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,254 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,255 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,255 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,255 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,255 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,255 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,255 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,255 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,256 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,256 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,256 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,256 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,256 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,256 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,256 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,256 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,257 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,257 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,257 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,257 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,257 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,257 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,258 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,258 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,258 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,258 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,258 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,258 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,259 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,259 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,259 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,259 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,259 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,259 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,259 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,260 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,260 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,260 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,260 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,260 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,260 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,260 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,260 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,260 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,261 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,261 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,261 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,261 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,261 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,261 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,262 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,262 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,262 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,262 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,262 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,262 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,263 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,263 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,263 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,263 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,263 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,263 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,263 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,264 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,264 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,264 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,264 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,264 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,264 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,264 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,264 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,265 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,265 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,265 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,265 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,265 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,265 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,265 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,266 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,266 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,266 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,266 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,268 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,268 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,268 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,269 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,269 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,269 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,269 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,269 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,269 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,269 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,271 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,271 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,271 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,271 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,272 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,272 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,272 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,272 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,272 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,272 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,273 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,274 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,274 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,275 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,275 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,275 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,275 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:34:33,276 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:34:33,293 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-26 10:34:33,324 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:34:33,324 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:34:33,324 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:34:33,324 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:34:33,324 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:34:33,324 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:34:33,324 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:34:33,324 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:34:33,334 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 95 transitions, 205 flow [2021-03-26 10:34:33,377 INFO L129 PetriNetUnfolder]: 2/92 cut-off events. [2021-03-26 10:34:33,377 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:34:33,381 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 2/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2021-03-26 10:34:33,381 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 95 transitions, 205 flow [2021-03-26 10:34:33,386 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 92 transitions, 193 flow [2021-03-26 10:34:33,387 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:34:33,399 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 92 transitions, 193 flow [2021-03-26 10:34:33,400 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 92 transitions, 193 flow [2021-03-26 10:34:33,402 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 92 transitions, 193 flow [2021-03-26 10:34:33,417 INFO L129 PetriNetUnfolder]: 2/92 cut-off events. [2021-03-26 10:34:33,417 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:34:33,418 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 2/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 65 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2021-03-26 10:34:33,420 INFO L142 LiptonReduction]: Number of co-enabled transitions 1602 [2021-03-26 10:34:35,023 WARN L205 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 185 [2021-03-26 10:34:35,338 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-03-26 10:34:36,661 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 310 DAG size of output: 265 [2021-03-26 10:34:37,306 WARN L205 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2021-03-26 10:34:37,558 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-26 10:34:37,887 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-26 10:34:37,992 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-26 10:34:39,163 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-03-26 10:34:39,460 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-03-26 10:34:40,096 WARN L205 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2021-03-26 10:34:40,680 WARN L205 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2021-03-26 10:34:40,926 INFO L154 LiptonReduction]: Checked pairs total: 2709 [2021-03-26 10:34:40,926 INFO L156 LiptonReduction]: Total number of compositions: 66 [2021-03-26 10:34:40,929 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7542 [2021-03-26 10:34:40,940 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-03-26 10:34:40,940 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:34:40,940 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:34:40,941 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:34:40,941 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:34:40,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:34:40,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1950849355, now seen corresponding path program 1 times [2021-03-26 10:34:40,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:34:40,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774856154] [2021-03-26 10:34:40,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:34:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:34:41,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:41,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:34:41,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:41,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:34:41,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:34:41,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774856154] [2021-03-26 10:34:41,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:34:41,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:34:41,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206812921] [2021-03-26 10:34:41,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:34:41,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:34:41,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:34:41,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:34:41,207 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 161 [2021-03-26 10:34:41,212 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 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) [2021-03-26 10:34:41,212 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:34:41,212 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 161 [2021-03-26 10:34:41,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:34:41,333 INFO L129 PetriNetUnfolder]: 69/176 cut-off events. [2021-03-26 10:34:41,333 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:34:41,336 INFO L84 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 176 events. 69/176 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 797 event pairs, 54 based on Foata normal form. 9/164 useless extension candidates. Maximal degree in co-relation 284. Up to 89 conditions per place. [2021-03-26 10:34:41,339 INFO L132 encePairwiseOnDemand]: 157/161 looper letters, 9 selfloop transitions, 2 changer transitions 3/39 dead transitions. [2021-03-26 10:34:41,339 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 39 transitions, 113 flow [2021-03-26 10:34:41,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:34:41,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:34:41,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 427 transitions. [2021-03-26 10:34:41,360 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8840579710144928 [2021-03-26 10:34:41,361 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 427 transitions. [2021-03-26 10:34:41,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 427 transitions. [2021-03-26 10:34:41,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:34:41,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 427 transitions. [2021-03-26 10:34:41,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 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) [2021-03-26 10:34:41,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 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) [2021-03-26 10:34:41,394 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 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) [2021-03-26 10:34:41,396 INFO L185 Difference]: Start difference. First operand has 46 places, 37 transitions, 83 flow. Second operand 3 states and 427 transitions. [2021-03-26 10:34:41,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 39 transitions, 113 flow [2021-03-26 10:34:41,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 39 transitions, 110 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 10:34:41,400 INFO L241 Difference]: Finished difference. Result has 43 places, 32 transitions, 74 flow [2021-03-26 10:34:41,406 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=43, PETRI_TRANSITIONS=32} [2021-03-26 10:34:41,407 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2021-03-26 10:34:41,407 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:34:41,408 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 32 transitions, 74 flow [2021-03-26 10:34:41,409 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 32 transitions, 74 flow [2021-03-26 10:34:41,409 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 32 transitions, 74 flow [2021-03-26 10:34:41,418 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2021-03-26 10:34:41,418 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:34:41,419 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 32 events. 0/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 30 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 10:34:41,420 INFO L142 LiptonReduction]: Number of co-enabled transitions 234 [2021-03-26 10:34:42,137 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-26 10:34:42,446 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-26 10:34:43,060 WARN L205 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-26 10:34:43,734 WARN L205 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-26 10:34:44,516 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-03-26 10:34:44,679 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-03-26 10:34:44,747 INFO L154 LiptonReduction]: Checked pairs total: 1040 [2021-03-26 10:34:44,747 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-26 10:34:44,747 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3340 [2021-03-26 10:34:44,748 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 54 flow [2021-03-26 10:34:44,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 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) [2021-03-26 10:34:44,749 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:34:44,749 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] [2021-03-26 10:34:44,749 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 10:34:44,749 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:34:44,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:34:44,750 INFO L82 PathProgramCache]: Analyzing trace with hash 344608737, now seen corresponding path program 1 times [2021-03-26 10:34:44,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:34:44,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326025919] [2021-03-26 10:34:44,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:34:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:34:44,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:44,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:34:44,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:44,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:34:44,906 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-26 10:34:44,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 10:34:44,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:34:44,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326025919] [2021-03-26 10:34:44,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:34:44,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:34:44,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354748380] [2021-03-26 10:34:44,914 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:34:44,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:34:44,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:34:44,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:34:44,916 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 171 [2021-03-26 10:34:44,916 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 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) [2021-03-26 10:34:44,917 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:34:44,917 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 171 [2021-03-26 10:34:44,917 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:34:44,932 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-03-26 10:34:44,932 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:34:44,932 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 25 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 10:34:44,933 INFO L132 encePairwiseOnDemand]: 168/171 looper letters, 1 selfloop transitions, 2 changer transitions 1/22 dead transitions. [2021-03-26 10:34:44,933 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 22 transitions, 60 flow [2021-03-26 10:34:44,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:34:44,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:34:44,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 442 transitions. [2021-03-26 10:34:44,935 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8615984405458089 [2021-03-26 10:34:44,935 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 442 transitions. [2021-03-26 10:34:44,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 442 transitions. [2021-03-26 10:34:44,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:34:44,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 442 transitions. [2021-03-26 10:34:44,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 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) [2021-03-26 10:34:44,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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) [2021-03-26 10:34:44,939 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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) [2021-03-26 10:34:44,939 INFO L185 Difference]: Start difference. First operand has 31 places, 22 transitions, 54 flow. Second operand 3 states and 442 transitions. [2021-03-26 10:34:44,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 22 transitions, 60 flow [2021-03-26 10:34:44,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 22 transitions, 56 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:34:44,940 INFO L241 Difference]: Finished difference. Result has 32 places, 21 transitions, 56 flow [2021-03-26 10:34:44,940 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=32, PETRI_TRANSITIONS=21} [2021-03-26 10:34:44,941 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -14 predicate places. [2021-03-26 10:34:44,941 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:34:44,941 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 21 transitions, 56 flow [2021-03-26 10:34:44,941 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 21 transitions, 56 flow [2021-03-26 10:34:44,942 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 21 transitions, 56 flow [2021-03-26 10:34:44,945 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-26 10:34:44,945 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:34:44,945 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 21 events. 0/21 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 26 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 10:34:44,945 INFO L142 LiptonReduction]: Number of co-enabled transitions 188 [2021-03-26 10:34:45,424 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-26 10:34:45,554 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-26 10:34:45,830 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-26 10:34:45,959 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-26 10:34:46,051 INFO L154 LiptonReduction]: Checked pairs total: 438 [2021-03-26 10:34:46,052 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:34:46,052 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1111 [2021-03-26 10:34:46,053 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 54 flow [2021-03-26 10:34:46,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 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) [2021-03-26 10:34:46,054 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:34:46,054 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:34:46,054 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 10:34:46,054 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:34:46,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:34:46,055 INFO L82 PathProgramCache]: Analyzing trace with hash -2053126643, now seen corresponding path program 1 times [2021-03-26 10:34:46,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:34:46,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621833184] [2021-03-26 10:34:46,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:34:46,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:34:46,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:46,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:34:46,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:34:46,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621833184] [2021-03-26 10:34:46,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:34:46,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 10:34:46,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406621440] [2021-03-26 10:34:46,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:34:46,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:34:46,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:34:46,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:34:46,158 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 172 [2021-03-26 10:34:46,159 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 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) [2021-03-26 10:34:46,159 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:34:46,159 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 172 [2021-03-26 10:34:46,159 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:34:46,182 INFO L129 PetriNetUnfolder]: 7/45 cut-off events. [2021-03-26 10:34:46,182 INFO L130 PetriNetUnfolder]: For 7/17 co-relation queries the response was YES. [2021-03-26 10:34:46,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 45 events. 7/45 cut-off events. For 7/17 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 123 event pairs, 2 based on Foata normal form. 1/45 useless extension candidates. Maximal degree in co-relation 75. Up to 17 conditions per place. [2021-03-26 10:34:46,183 INFO L132 encePairwiseOnDemand]: 168/172 looper letters, 5 selfloop transitions, 3 changer transitions 0/23 dead transitions. [2021-03-26 10:34:46,183 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 23 transitions, 79 flow [2021-03-26 10:34:46,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:34:46,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:34:46,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 450 transitions. [2021-03-26 10:34:46,185 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.872093023255814 [2021-03-26 10:34:46,186 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 450 transitions. [2021-03-26 10:34:46,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 450 transitions. [2021-03-26 10:34:46,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:34:46,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 450 transitions. [2021-03-26 10:34:46,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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) [2021-03-26 10:34:46,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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) [2021-03-26 10:34:46,189 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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) [2021-03-26 10:34:46,189 INFO L185 Difference]: Start difference. First operand has 30 places, 20 transitions, 54 flow. Second operand 3 states and 450 transitions. [2021-03-26 10:34:46,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 23 transitions, 79 flow [2021-03-26 10:34:46,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 23 transitions, 73 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:34:46,190 INFO L241 Difference]: Finished difference. Result has 31 places, 22 transitions, 69 flow [2021-03-26 10:34:46,190 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=31, PETRI_TRANSITIONS=22} [2021-03-26 10:34:46,190 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -15 predicate places. [2021-03-26 10:34:46,190 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:34:46,191 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 22 transitions, 69 flow [2021-03-26 10:34:46,191 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 22 transitions, 69 flow [2021-03-26 10:34:46,192 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 22 transitions, 69 flow [2021-03-26 10:34:46,196 INFO L129 PetriNetUnfolder]: 3/30 cut-off events. [2021-03-26 10:34:46,197 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 10:34:46,197 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 30 events. 3/30 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 60 event pairs, 1 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 47. Up to 10 conditions per place. [2021-03-26 10:34:46,197 INFO L142 LiptonReduction]: Number of co-enabled transitions 214 [2021-03-26 10:34:46,224 INFO L154 LiptonReduction]: Checked pairs total: 196 [2021-03-26 10:34:46,224 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:34:46,224 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-03-26 10:34:46,225 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 69 flow [2021-03-26 10:34:46,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 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) [2021-03-26 10:34:46,225 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:34:46,225 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:34:46,225 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 10:34:46,226 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:34:46,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:34:46,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1916283550, now seen corresponding path program 1 times [2021-03-26 10:34:46,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:34:46,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253069341] [2021-03-26 10:34:46,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:34:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:34:46,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:46,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:34:46,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:46,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:34:46,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:34:46,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253069341] [2021-03-26 10:34:46,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:34:46,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:34:46,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308903446] [2021-03-26 10:34:46,309 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:34:46,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:34:46,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:34:46,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:34:46,310 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 172 [2021-03-26 10:34:46,311 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 69 flow. Second operand has 4 states, 4 states have (on average 128.75) internal successors, (515), 4 states have internal predecessors, (515), 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) [2021-03-26 10:34:46,311 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:34:46,311 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 172 [2021-03-26 10:34:46,311 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:34:46,381 INFO L129 PetriNetUnfolder]: 106/221 cut-off events. [2021-03-26 10:34:46,382 INFO L130 PetriNetUnfolder]: For 76/76 co-relation queries the response was YES. [2021-03-26 10:34:46,383 INFO L84 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 221 events. 106/221 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 994 event pairs, 78 based on Foata normal form. 1/201 useless extension candidates. Maximal degree in co-relation 463. Up to 163 conditions per place. [2021-03-26 10:34:46,384 INFO L132 encePairwiseOnDemand]: 167/172 looper letters, 8 selfloop transitions, 4 changer transitions 0/26 dead transitions. [2021-03-26 10:34:46,384 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 26 transitions, 101 flow [2021-03-26 10:34:46,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:34:46,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:34:46,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2021-03-26 10:34:46,388 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7693798449612403 [2021-03-26 10:34:46,388 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2021-03-26 10:34:46,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2021-03-26 10:34:46,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:34:46,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2021-03-26 10:34:46,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 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) [2021-03-26 10:34:46,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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) [2021-03-26 10:34:46,391 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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) [2021-03-26 10:34:46,391 INFO L185 Difference]: Start difference. First operand has 31 places, 22 transitions, 69 flow. Second operand 3 states and 397 transitions. [2021-03-26 10:34:46,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 26 transitions, 101 flow [2021-03-26 10:34:46,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 26 transitions, 98 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:34:46,393 INFO L241 Difference]: Finished difference. Result has 33 places, 25 transitions, 92 flow [2021-03-26 10:34:46,393 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=33, PETRI_TRANSITIONS=25} [2021-03-26 10:34:46,393 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -13 predicate places. [2021-03-26 10:34:46,393 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:34:46,393 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 25 transitions, 92 flow [2021-03-26 10:34:46,394 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 25 transitions, 92 flow [2021-03-26 10:34:46,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 25 transitions, 92 flow [2021-03-26 10:34:46,406 INFO L129 PetriNetUnfolder]: 20/81 cut-off events. [2021-03-26 10:34:46,406 INFO L130 PetriNetUnfolder]: For 39/48 co-relation queries the response was YES. [2021-03-26 10:34:46,406 INFO L84 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 81 events. 20/81 cut-off events. For 39/48 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 337 event pairs, 9 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 158. Up to 37 conditions per place. [2021-03-26 10:34:46,407 INFO L142 LiptonReduction]: Number of co-enabled transitions 230 [2021-03-26 10:34:46,449 INFO L154 LiptonReduction]: Checked pairs total: 123 [2021-03-26 10:34:46,449 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:34:46,449 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 56 [2021-03-26 10:34:46,454 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 25 transitions, 92 flow [2021-03-26 10:34:46,454 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 128.75) internal successors, (515), 4 states have internal predecessors, (515), 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) [2021-03-26 10:34:46,454 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:34:46,454 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:34:46,455 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 10:34:46,455 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:34:46,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:34:46,455 INFO L82 PathProgramCache]: Analyzing trace with hash 714472308, now seen corresponding path program 1 times [2021-03-26 10:34:46,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:34:46,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124525378] [2021-03-26 10:34:46,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:34:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:34:46,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:46,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:34:46,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:46,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:34:46,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:34:46,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124525378] [2021-03-26 10:34:46,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:34:46,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:34:46,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742267019] [2021-03-26 10:34:46,532 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:34:46,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:34:46,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:34:46,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:34:46,534 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 172 [2021-03-26 10:34:46,534 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 25 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 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) [2021-03-26 10:34:46,534 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:34:46,534 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 172 [2021-03-26 10:34:46,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:34:46,560 INFO L129 PetriNetUnfolder]: 24/101 cut-off events. [2021-03-26 10:34:46,560 INFO L130 PetriNetUnfolder]: For 117/197 co-relation queries the response was YES. [2021-03-26 10:34:46,561 INFO L84 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 101 events. 24/101 cut-off events. For 117/197 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 438 event pairs, 13 based on Foata normal form. 7/105 useless extension candidates. Maximal degree in co-relation 215. Up to 44 conditions per place. [2021-03-26 10:34:46,562 INFO L132 encePairwiseOnDemand]: 169/172 looper letters, 5 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2021-03-26 10:34:46,562 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 26 transitions, 111 flow [2021-03-26 10:34:46,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:34:46,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:34:46,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 449 transitions. [2021-03-26 10:34:46,564 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8701550387596899 [2021-03-26 10:34:46,564 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 449 transitions. [2021-03-26 10:34:46,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 449 transitions. [2021-03-26 10:34:46,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:34:46,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 449 transitions. [2021-03-26 10:34:46,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 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) [2021-03-26 10:34:46,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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) [2021-03-26 10:34:46,568 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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) [2021-03-26 10:34:46,568 INFO L185 Difference]: Start difference. First operand has 33 places, 25 transitions, 92 flow. Second operand 3 states and 449 transitions. [2021-03-26 10:34:46,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 26 transitions, 111 flow [2021-03-26 10:34:46,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 26 transitions, 107 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:34:46,569 INFO L241 Difference]: Finished difference. Result has 35 places, 25 transitions, 99 flow [2021-03-26 10:34:46,569 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=35, PETRI_TRANSITIONS=25} [2021-03-26 10:34:46,570 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -11 predicate places. [2021-03-26 10:34:46,570 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:34:46,570 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 25 transitions, 99 flow [2021-03-26 10:34:46,570 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 25 transitions, 99 flow [2021-03-26 10:34:46,570 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 25 transitions, 99 flow [2021-03-26 10:34:46,580 INFO L129 PetriNetUnfolder]: 19/84 cut-off events. [2021-03-26 10:34:46,581 INFO L130 PetriNetUnfolder]: For 91/110 co-relation queries the response was YES. [2021-03-26 10:34:46,581 INFO L84 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 84 events. 19/84 cut-off events. For 91/110 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 347 event pairs, 8 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 182. Up to 40 conditions per place. [2021-03-26 10:34:46,582 INFO L142 LiptonReduction]: Number of co-enabled transitions 230 [2021-03-26 10:34:46,604 INFO L154 LiptonReduction]: Checked pairs total: 149 [2021-03-26 10:34:46,604 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:34:46,604 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-03-26 10:34:46,608 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 25 transitions, 99 flow [2021-03-26 10:34:46,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 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) [2021-03-26 10:34:46,609 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:34:46,609 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:34:46,609 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 10:34:46,609 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:34:46,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:34:46,613 INFO L82 PathProgramCache]: Analyzing trace with hash 725299430, now seen corresponding path program 1 times [2021-03-26 10:34:46,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:34:46,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192291740] [2021-03-26 10:34:46,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:34:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:34:46,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:46,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:34:46,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:46,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:34:46,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:34:46,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192291740] [2021-03-26 10:34:46,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:34:46,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:34:46,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705057235] [2021-03-26 10:34:46,716 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:34:46,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:34:46,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:34:46,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:34:46,718 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 172 [2021-03-26 10:34:46,719 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 25 transitions, 99 flow. Second operand has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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) [2021-03-26 10:34:46,719 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:34:46,719 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 172 [2021-03-26 10:34:46,719 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:34:46,801 INFO L129 PetriNetUnfolder]: 28/135 cut-off events. [2021-03-26 10:34:46,802 INFO L130 PetriNetUnfolder]: For 283/402 co-relation queries the response was YES. [2021-03-26 10:34:46,802 INFO L84 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 135 events. 28/135 cut-off events. For 283/402 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 736 event pairs, 14 based on Foata normal form. 15/141 useless extension candidates. Maximal degree in co-relation 283. Up to 59 conditions per place. [2021-03-26 10:34:46,803 INFO L132 encePairwiseOnDemand]: 167/172 looper letters, 4 selfloop transitions, 4 changer transitions 2/28 dead transitions. [2021-03-26 10:34:46,803 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 28 transitions, 136 flow [2021-03-26 10:34:46,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:34:46,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:34:46,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 587 transitions. [2021-03-26 10:34:46,806 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8531976744186046 [2021-03-26 10:34:46,806 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 587 transitions. [2021-03-26 10:34:46,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 587 transitions. [2021-03-26 10:34:46,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:34:46,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 587 transitions. [2021-03-26 10:34:46,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 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) [2021-03-26 10:34:46,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 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) [2021-03-26 10:34:46,812 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 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) [2021-03-26 10:34:46,812 INFO L185 Difference]: Start difference. First operand has 35 places, 25 transitions, 99 flow. Second operand 4 states and 587 transitions. [2021-03-26 10:34:46,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 28 transitions, 136 flow [2021-03-26 10:34:46,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 28 transitions, 127 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-26 10:34:46,815 INFO L241 Difference]: Finished difference. Result has 38 places, 25 transitions, 107 flow [2021-03-26 10:34:46,816 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=34, 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=4, PETRI_FLOW=107, PETRI_PLACES=38, PETRI_TRANSITIONS=25} [2021-03-26 10:34:46,816 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -8 predicate places. [2021-03-26 10:34:46,816 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:34:46,816 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 25 transitions, 107 flow [2021-03-26 10:34:46,816 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 25 transitions, 107 flow [2021-03-26 10:34:46,817 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 25 transitions, 107 flow [2021-03-26 10:34:46,828 INFO L129 PetriNetUnfolder]: 19/88 cut-off events. [2021-03-26 10:34:46,828 INFO L130 PetriNetUnfolder]: For 110/113 co-relation queries the response was YES. [2021-03-26 10:34:46,829 INFO L84 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 88 events. 19/88 cut-off events. For 110/113 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 368 event pairs, 11 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 198. Up to 41 conditions per place. [2021-03-26 10:34:46,830 INFO L142 LiptonReduction]: Number of co-enabled transitions 210 [2021-03-26 10:34:46,832 INFO L154 LiptonReduction]: Checked pairs total: 129 [2021-03-26 10:34:46,832 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:34:46,832 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-03-26 10:34:46,833 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 25 transitions, 107 flow [2021-03-26 10:34:46,833 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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) [2021-03-26 10:34:46,833 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:34:46,834 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:34:46,834 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 10:34:46,834 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:34:46,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:34:46,834 INFO L82 PathProgramCache]: Analyzing trace with hash 724751660, now seen corresponding path program 2 times [2021-03-26 10:34:46,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:34:46,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247071076] [2021-03-26 10:34:46,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:34:46,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:34:46,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:46,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:34:46,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:46,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:34:46,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:46,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:34:46,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:34:46,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247071076] [2021-03-26 10:34:46,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:34:46,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:34:46,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834464719] [2021-03-26 10:34:46,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:34:46,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:34:46,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:34:46,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:34:46,957 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 172 [2021-03-26 10:34:46,957 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 107 flow. Second operand has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 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) [2021-03-26 10:34:46,957 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:34:46,957 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 172 [2021-03-26 10:34:46,958 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:34:47,031 INFO L129 PetriNetUnfolder]: 115/254 cut-off events. [2021-03-26 10:34:47,032 INFO L130 PetriNetUnfolder]: For 363/395 co-relation queries the response was YES. [2021-03-26 10:34:47,033 INFO L84 FinitePrefix]: Finished finitePrefix Result has 692 conditions, 254 events. 115/254 cut-off events. For 363/395 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1153 event pairs, 47 based on Foata normal form. 3/249 useless extension candidates. Maximal degree in co-relation 676. Up to 195 conditions per place. [2021-03-26 10:34:47,034 INFO L132 encePairwiseOnDemand]: 167/172 looper letters, 9 selfloop transitions, 6 changer transitions 0/29 dead transitions. [2021-03-26 10:34:47,034 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 29 transitions, 149 flow [2021-03-26 10:34:47,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:34:47,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:34:47,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 416 transitions. [2021-03-26 10:34:47,037 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8062015503875969 [2021-03-26 10:34:47,037 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 416 transitions. [2021-03-26 10:34:47,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 416 transitions. [2021-03-26 10:34:47,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:34:47,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 416 transitions. [2021-03-26 10:34:47,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 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) [2021-03-26 10:34:47,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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) [2021-03-26 10:34:47,040 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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) [2021-03-26 10:34:47,040 INFO L185 Difference]: Start difference. First operand has 38 places, 25 transitions, 107 flow. Second operand 3 states and 416 transitions. [2021-03-26 10:34:47,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 29 transitions, 149 flow [2021-03-26 10:34:47,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 29 transitions, 139 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-26 10:34:47,042 INFO L241 Difference]: Finished difference. Result has 38 places, 28 transitions, 133 flow [2021-03-26 10:34:47,042 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=38, PETRI_TRANSITIONS=28} [2021-03-26 10:34:47,042 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -8 predicate places. [2021-03-26 10:34:47,043 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:34:47,043 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 28 transitions, 133 flow [2021-03-26 10:34:47,043 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 28 transitions, 133 flow [2021-03-26 10:34:47,043 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 28 transitions, 133 flow [2021-03-26 10:34:47,058 INFO L129 PetriNetUnfolder]: 32/112 cut-off events. [2021-03-26 10:34:47,058 INFO L130 PetriNetUnfolder]: For 148/191 co-relation queries the response was YES. [2021-03-26 10:34:47,058 INFO L84 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 112 events. 32/112 cut-off events. For 148/191 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 526 event pairs, 11 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 288. Up to 60 conditions per place. [2021-03-26 10:34:47,060 INFO L142 LiptonReduction]: Number of co-enabled transitions 236 [2021-03-26 10:34:47,184 INFO L154 LiptonReduction]: Checked pairs total: 95 [2021-03-26 10:34:47,184 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:34:47,185 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 143 [2021-03-26 10:34:47,185 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 28 transitions, 133 flow [2021-03-26 10:34:47,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 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) [2021-03-26 10:34:47,186 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:34:47,186 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:34:47,186 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 10:34:47,186 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:34:47,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:34:47,186 INFO L82 PathProgramCache]: Analyzing trace with hash 699079630, now seen corresponding path program 1 times [2021-03-26 10:34:47,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:34:47,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401593780] [2021-03-26 10:34:47,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:34:47,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:34:47,335 INFO L142 QuantifierPusher]: treesize reduction 2, result has 97.3 percent of original size [2021-03-26 10:34:47,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-26 10:34:47,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:47,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:34:47,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:47,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:34:47,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:34:47,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401593780] [2021-03-26 10:34:47,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:34:47,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:34:47,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782845551] [2021-03-26 10:34:47,403 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:34:47,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:34:47,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:34:47,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:34:47,404 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 172 [2021-03-26 10:34:47,405 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 28 transitions, 133 flow. Second operand has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 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) [2021-03-26 10:34:47,405 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:34:47,405 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 172 [2021-03-26 10:34:47,405 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:34:47,495 INFO L129 PetriNetUnfolder]: 116/259 cut-off events. [2021-03-26 10:34:47,495 INFO L130 PetriNetUnfolder]: For 421/516 co-relation queries the response was YES. [2021-03-26 10:34:47,496 INFO L84 FinitePrefix]: Finished finitePrefix Result has 812 conditions, 259 events. 116/259 cut-off events. For 421/516 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1186 event pairs, 45 based on Foata normal form. 12/265 useless extension candidates. Maximal degree in co-relation 796. Up to 191 conditions per place. [2021-03-26 10:34:47,499 INFO L132 encePairwiseOnDemand]: 166/172 looper letters, 10 selfloop transitions, 9 changer transitions 1/34 dead transitions. [2021-03-26 10:34:47,499 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 34 transitions, 197 flow [2021-03-26 10:34:47,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:34:47,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:34:47,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 526 transitions. [2021-03-26 10:34:47,502 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7645348837209303 [2021-03-26 10:34:47,502 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 526 transitions. [2021-03-26 10:34:47,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 526 transitions. [2021-03-26 10:34:47,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:34:47,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 526 transitions. [2021-03-26 10:34:47,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 131.5) internal successors, (526), 4 states have internal predecessors, (526), 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) [2021-03-26 10:34:47,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 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) [2021-03-26 10:34:47,505 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 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) [2021-03-26 10:34:47,506 INFO L185 Difference]: Start difference. First operand has 38 places, 28 transitions, 133 flow. Second operand 4 states and 526 transitions. [2021-03-26 10:34:47,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 34 transitions, 197 flow [2021-03-26 10:34:47,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 34 transitions, 191 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:34:47,509 INFO L241 Difference]: Finished difference. Result has 42 places, 31 transitions, 182 flow [2021-03-26 10:34:47,509 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=182, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2021-03-26 10:34:47,509 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -4 predicate places. [2021-03-26 10:34:47,509 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:34:47,510 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 31 transitions, 182 flow [2021-03-26 10:34:47,510 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 31 transitions, 182 flow [2021-03-26 10:34:47,510 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 31 transitions, 182 flow [2021-03-26 10:34:47,526 INFO L129 PetriNetUnfolder]: 30/114 cut-off events. [2021-03-26 10:34:47,526 INFO L130 PetriNetUnfolder]: For 311/406 co-relation queries the response was YES. [2021-03-26 10:34:47,527 INFO L84 FinitePrefix]: Finished finitePrefix Result has 368 conditions, 114 events. 30/114 cut-off events. For 311/406 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 532 event pairs, 13 based on Foata normal form. 1/109 useless extension candidates. Maximal degree in co-relation 351. Up to 59 conditions per place. [2021-03-26 10:34:47,528 INFO L142 LiptonReduction]: Number of co-enabled transitions 256 [2021-03-26 10:34:47,678 INFO L154 LiptonReduction]: Checked pairs total: 186 [2021-03-26 10:34:47,678 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:34:47,678 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 169 [2021-03-26 10:34:47,679 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 182 flow [2021-03-26 10:34:47,679 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 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) [2021-03-26 10:34:47,679 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:34:47,680 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:34:47,680 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 10:34:47,680 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:34:47,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:34:47,680 INFO L82 PathProgramCache]: Analyzing trace with hash 700346476, now seen corresponding path program 1 times [2021-03-26 10:34:47,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:34:47,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606458620] [2021-03-26 10:34:47,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:34:47,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:34:47,758 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-03-26 10:34:47,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 10:34:47,786 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-26 10:34:47,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 10:34:47,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:47,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:34:47,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:34:47,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606458620] [2021-03-26 10:34:47,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:34:47,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:34:47,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420987498] [2021-03-26 10:34:47,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:34:47,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:34:47,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:34:47,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:34:47,832 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 172 [2021-03-26 10:34:47,832 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 182 flow. Second operand has 5 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 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) [2021-03-26 10:34:47,832 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:34:47,832 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 172 [2021-03-26 10:34:47,833 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:34:47,962 INFO L129 PetriNetUnfolder]: 114/260 cut-off events. [2021-03-26 10:34:47,962 INFO L130 PetriNetUnfolder]: For 705/875 co-relation queries the response was YES. [2021-03-26 10:34:47,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 924 conditions, 260 events. 114/260 cut-off events. For 705/875 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1253 event pairs, 50 based on Foata normal form. 10/260 useless extension candidates. Maximal degree in co-relation 905. Up to 172 conditions per place. [2021-03-26 10:34:47,965 INFO L132 encePairwiseOnDemand]: 166/172 looper letters, 16 selfloop transitions, 9 changer transitions 0/39 dead transitions. [2021-03-26 10:34:47,965 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 39 transitions, 274 flow [2021-03-26 10:34:47,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:34:47,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:34:47,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 546 transitions. [2021-03-26 10:34:47,967 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7936046511627907 [2021-03-26 10:34:47,968 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 546 transitions. [2021-03-26 10:34:47,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 546 transitions. [2021-03-26 10:34:47,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:34:47,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 546 transitions. [2021-03-26 10:34:47,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 136.5) internal successors, (546), 4 states have internal predecessors, (546), 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) [2021-03-26 10:34:47,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 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) [2021-03-26 10:34:47,971 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 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) [2021-03-26 10:34:47,971 INFO L185 Difference]: Start difference. First operand has 42 places, 31 transitions, 182 flow. Second operand 4 states and 546 transitions. [2021-03-26 10:34:47,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 39 transitions, 274 flow [2021-03-26 10:34:47,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 39 transitions, 268 flow, removed 3 selfloop flow, removed 0 redundant places. [2021-03-26 10:34:47,973 INFO L241 Difference]: Finished difference. Result has 46 places, 34 transitions, 219 flow [2021-03-26 10:34:47,973 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=219, PETRI_PLACES=46, PETRI_TRANSITIONS=34} [2021-03-26 10:34:47,973 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 0 predicate places. [2021-03-26 10:34:47,974 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:34:47,974 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 34 transitions, 219 flow [2021-03-26 10:34:47,974 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 34 transitions, 219 flow [2021-03-26 10:34:47,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 34 transitions, 219 flow [2021-03-26 10:34:47,994 INFO L129 PetriNetUnfolder]: 52/158 cut-off events. [2021-03-26 10:34:47,995 INFO L130 PetriNetUnfolder]: For 620/696 co-relation queries the response was YES. [2021-03-26 10:34:47,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 566 conditions, 158 events. 52/158 cut-off events. For 620/696 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 784 event pairs, 23 based on Foata normal form. 1/152 useless extension candidates. Maximal degree in co-relation 546. Up to 77 conditions per place. [2021-03-26 10:34:47,997 INFO L142 LiptonReduction]: Number of co-enabled transitions 268 [2021-03-26 10:34:48,002 INFO L154 LiptonReduction]: Checked pairs total: 130 [2021-03-26 10:34:48,002 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:34:48,002 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 28 [2021-03-26 10:34:48,003 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 34 transitions, 219 flow [2021-03-26 10:34:48,003 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 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) [2021-03-26 10:34:48,004 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:34:48,004 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:34:48,004 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 10:34:48,004 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:34:48,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:34:48,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1548005640, now seen corresponding path program 1 times [2021-03-26 10:34:48,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:34:48,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150430259] [2021-03-26 10:34:48,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:34:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:34:48,107 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-26 10:34:48,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 10:34:48,137 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 10:34:48,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-26 10:34:48,178 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-03-26 10:34:48,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 10:34:48,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:48,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 10:34:48,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:34:48,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150430259] [2021-03-26 10:34:48,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:34:48,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:34:48,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46277699] [2021-03-26 10:34:48,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:34:48,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:34:48,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:34:48,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:34:48,237 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 172 [2021-03-26 10:34:48,238 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 34 transitions, 219 flow. Second operand has 6 states, 6 states have (on average 128.83333333333334) internal successors, (773), 6 states have internal predecessors, (773), 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) [2021-03-26 10:34:48,238 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:34:48,238 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 172 [2021-03-26 10:34:48,238 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:34:48,450 INFO L129 PetriNetUnfolder]: 136/293 cut-off events. [2021-03-26 10:34:48,450 INFO L130 PetriNetUnfolder]: For 1107/1202 co-relation queries the response was YES. [2021-03-26 10:34:48,452 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1181 conditions, 293 events. 136/293 cut-off events. For 1107/1202 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1371 event pairs, 28 based on Foata normal form. 27/315 useless extension candidates. Maximal degree in co-relation 1159. Up to 205 conditions per place. [2021-03-26 10:34:48,454 INFO L132 encePairwiseOnDemand]: 164/172 looper letters, 20 selfloop transitions, 18 changer transitions 0/52 dead transitions. [2021-03-26 10:34:48,454 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 52 transitions, 418 flow [2021-03-26 10:34:48,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:34:48,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:34:48,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 664 transitions. [2021-03-26 10:34:48,461 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.772093023255814 [2021-03-26 10:34:48,461 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 664 transitions. [2021-03-26 10:34:48,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 664 transitions. [2021-03-26 10:34:48,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:34:48,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 664 transitions. [2021-03-26 10:34:48,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 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) [2021-03-26 10:34:48,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 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) [2021-03-26 10:34:48,466 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 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) [2021-03-26 10:34:48,466 INFO L185 Difference]: Start difference. First operand has 46 places, 34 transitions, 219 flow. Second operand 5 states and 664 transitions. [2021-03-26 10:34:48,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 52 transitions, 418 flow [2021-03-26 10:34:48,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 52 transitions, 398 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-03-26 10:34:48,474 INFO L241 Difference]: Finished difference. Result has 52 places, 48 transitions, 385 flow [2021-03-26 10:34:48,475 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=385, PETRI_PLACES=52, PETRI_TRANSITIONS=48} [2021-03-26 10:34:48,475 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 6 predicate places. [2021-03-26 10:34:48,475 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:34:48,475 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 48 transitions, 385 flow [2021-03-26 10:34:48,475 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 48 transitions, 385 flow [2021-03-26 10:34:48,476 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 48 transitions, 385 flow [2021-03-26 10:34:48,520 INFO L129 PetriNetUnfolder]: 86/253 cut-off events. [2021-03-26 10:34:48,520 INFO L130 PetriNetUnfolder]: For 1628/1697 co-relation queries the response was YES. [2021-03-26 10:34:48,521 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1131 conditions, 253 events. 86/253 cut-off events. For 1628/1697 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1436 event pairs, 12 based on Foata normal form. 8/256 useless extension candidates. Maximal degree in co-relation 1107. Up to 131 conditions per place. [2021-03-26 10:34:48,524 INFO L142 LiptonReduction]: Number of co-enabled transitions 328 [2021-03-26 10:34:48,544 INFO L154 LiptonReduction]: Checked pairs total: 183 [2021-03-26 10:34:48,544 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:34:48,544 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 69 [2021-03-26 10:34:48,545 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 48 transitions, 385 flow [2021-03-26 10:34:48,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 128.83333333333334) internal successors, (773), 6 states have internal predecessors, (773), 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) [2021-03-26 10:34:48,545 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:34:48,546 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:34:48,546 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 10:34:48,546 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:34:48,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:34:48,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1676638511, now seen corresponding path program 1 times [2021-03-26 10:34:48,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:34:48,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285324828] [2021-03-26 10:34:48,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:34:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:34:48,635 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 10:34:48,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 10:34:48,677 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-03-26 10:34:48,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 10:34:48,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:48,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:34:48,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:48,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:34:48,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:34:48,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285324828] [2021-03-26 10:34:48,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:34:48,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:34:48,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687918866] [2021-03-26 10:34:48,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:34:48,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:34:48,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:34:48,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:34:48,735 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 172 [2021-03-26 10:34:48,736 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 48 transitions, 385 flow. Second operand has 6 states, 6 states have (on average 127.83333333333333) internal successors, (767), 6 states have internal predecessors, (767), 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) [2021-03-26 10:34:48,736 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:34:48,736 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 172 [2021-03-26 10:34:48,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:34:48,905 INFO L129 PetriNetUnfolder]: 135/307 cut-off events. [2021-03-26 10:34:48,906 INFO L130 PetriNetUnfolder]: For 1369/1548 co-relation queries the response was YES. [2021-03-26 10:34:48,907 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1441 conditions, 307 events. 135/307 cut-off events. For 1369/1548 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1549 event pairs, 39 based on Foata normal form. 17/317 useless extension candidates. Maximal degree in co-relation 1415. Up to 205 conditions per place. [2021-03-26 10:34:48,909 INFO L132 encePairwiseOnDemand]: 167/172 looper letters, 26 selfloop transitions, 14 changer transitions 0/54 dead transitions. [2021-03-26 10:34:48,909 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 54 transitions, 518 flow [2021-03-26 10:34:48,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:34:48,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:34:48,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 526 transitions. [2021-03-26 10:34:48,912 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7645348837209303 [2021-03-26 10:34:48,912 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 526 transitions. [2021-03-26 10:34:48,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 526 transitions. [2021-03-26 10:34:48,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:34:48,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 526 transitions. [2021-03-26 10:34:48,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 131.5) internal successors, (526), 4 states have internal predecessors, (526), 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) [2021-03-26 10:34:48,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 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) [2021-03-26 10:34:48,916 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 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) [2021-03-26 10:34:48,916 INFO L185 Difference]: Start difference. First operand has 52 places, 48 transitions, 385 flow. Second operand 4 states and 526 transitions. [2021-03-26 10:34:48,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 54 transitions, 518 flow [2021-03-26 10:34:48,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 54 transitions, 514 flow, removed 2 selfloop flow, removed 0 redundant places. [2021-03-26 10:34:48,921 INFO L241 Difference]: Finished difference. Result has 56 places, 50 transitions, 438 flow [2021-03-26 10:34:48,921 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=381, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=438, PETRI_PLACES=56, PETRI_TRANSITIONS=50} [2021-03-26 10:34:48,921 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 10 predicate places. [2021-03-26 10:34:48,921 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:34:48,921 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 50 transitions, 438 flow [2021-03-26 10:34:48,922 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 50 transitions, 438 flow [2021-03-26 10:34:48,922 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 50 transitions, 438 flow [2021-03-26 10:34:48,961 INFO L129 PetriNetUnfolder]: 87/252 cut-off events. [2021-03-26 10:34:48,961 INFO L130 PetriNetUnfolder]: For 1999/2066 co-relation queries the response was YES. [2021-03-26 10:34:48,962 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1202 conditions, 252 events. 87/252 cut-off events. For 1999/2066 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1422 event pairs, 14 based on Foata normal form. 8/256 useless extension candidates. Maximal degree in co-relation 1175. Up to 130 conditions per place. [2021-03-26 10:34:48,965 INFO L142 LiptonReduction]: Number of co-enabled transitions 342 [2021-03-26 10:34:48,980 INFO L154 LiptonReduction]: Checked pairs total: 236 [2021-03-26 10:34:48,980 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:34:48,980 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 59 [2021-03-26 10:34:48,984 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 50 transitions, 438 flow [2021-03-26 10:34:48,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 127.83333333333333) internal successors, (767), 6 states have internal predecessors, (767), 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) [2021-03-26 10:34:48,985 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:34:48,985 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:34:48,986 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 10:34:48,986 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:34:48,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:34:48,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1005713016, now seen corresponding path program 2 times [2021-03-26 10:34:48,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:34:48,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274952475] [2021-03-26 10:34:48,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:34:49,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:34:49,050 INFO L142 QuantifierPusher]: treesize reduction 2, result has 97.3 percent of original size [2021-03-26 10:34:49,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-26 10:34:49,109 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size [2021-03-26 10:34:49,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 10:34:49,147 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size [2021-03-26 10:34:49,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 10:34:49,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:49,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 10:34:49,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:34:49,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274952475] [2021-03-26 10:34:49,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:34:49,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:34:49,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812983843] [2021-03-26 10:34:49,196 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:34:49,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:34:49,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:34:49,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:34:49,198 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 172 [2021-03-26 10:34:49,199 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 50 transitions, 438 flow. Second operand has 6 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 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) [2021-03-26 10:34:49,199 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:34:49,199 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 172 [2021-03-26 10:34:49,199 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:34:49,355 INFO L129 PetriNetUnfolder]: 131/296 cut-off events. [2021-03-26 10:34:49,356 INFO L130 PetriNetUnfolder]: For 1689/1832 co-relation queries the response was YES. [2021-03-26 10:34:49,357 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1462 conditions, 296 events. 131/296 cut-off events. For 1689/1832 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1493 event pairs, 34 based on Foata normal form. 33/324 useless extension candidates. Maximal degree in co-relation 1433. Up to 208 conditions per place. [2021-03-26 10:34:49,359 INFO L132 encePairwiseOnDemand]: 167/172 looper letters, 23 selfloop transitions, 17 changer transitions 0/54 dead transitions. [2021-03-26 10:34:49,359 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 54 transitions, 544 flow [2021-03-26 10:34:49,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:34:49,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:34:49,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 509 transitions. [2021-03-26 10:34:49,362 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7398255813953488 [2021-03-26 10:34:49,362 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 509 transitions. [2021-03-26 10:34:49,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 509 transitions. [2021-03-26 10:34:49,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:34:49,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 509 transitions. [2021-03-26 10:34:49,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 127.25) internal successors, (509), 4 states have internal predecessors, (509), 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) [2021-03-26 10:34:49,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 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) [2021-03-26 10:34:49,364 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 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) [2021-03-26 10:34:49,364 INFO L185 Difference]: Start difference. First operand has 56 places, 50 transitions, 438 flow. Second operand 4 states and 509 transitions. [2021-03-26 10:34:49,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 54 transitions, 544 flow [2021-03-26 10:34:49,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 54 transitions, 527 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-03-26 10:34:49,371 INFO L241 Difference]: Finished difference. Result has 59 places, 52 transitions, 492 flow [2021-03-26 10:34:49,371 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=492, PETRI_PLACES=59, PETRI_TRANSITIONS=52} [2021-03-26 10:34:49,371 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 13 predicate places. [2021-03-26 10:34:49,371 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:34:49,371 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 52 transitions, 492 flow [2021-03-26 10:34:49,371 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 52 transitions, 492 flow [2021-03-26 10:34:49,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 52 transitions, 492 flow [2021-03-26 10:34:49,403 INFO L129 PetriNetUnfolder]: 81/239 cut-off events. [2021-03-26 10:34:49,403 INFO L130 PetriNetUnfolder]: For 2450/2539 co-relation queries the response was YES. [2021-03-26 10:34:49,404 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1225 conditions, 239 events. 81/239 cut-off events. For 2450/2539 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1330 event pairs, 11 based on Foata normal form. 11/246 useless extension candidates. Maximal degree in co-relation 1196. Up to 121 conditions per place. [2021-03-26 10:34:49,407 INFO L142 LiptonReduction]: Number of co-enabled transitions 346 [2021-03-26 10:34:49,418 INFO L154 LiptonReduction]: Checked pairs total: 277 [2021-03-26 10:34:49,419 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:34:49,419 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 48 [2021-03-26 10:34:49,420 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 52 transitions, 492 flow [2021-03-26 10:34:49,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 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) [2021-03-26 10:34:49,420 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:34:49,421 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:34:49,421 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-26 10:34:49,421 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:34:49,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:34:49,421 INFO L82 PathProgramCache]: Analyzing trace with hash 992431872, now seen corresponding path program 1 times [2021-03-26 10:34:49,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:34:49,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117395010] [2021-03-26 10:34:49,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:34:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:34:49,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:49,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:34:49,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:49,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:34:49,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:49,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:34:49,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:49,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:34:49,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:34:49,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117395010] [2021-03-26 10:34:49,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:34:49,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:34:49,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765297735] [2021-03-26 10:34:49,486 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:34:49,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:34:49,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:34:49,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:34:49,487 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 172 [2021-03-26 10:34:49,488 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 52 transitions, 492 flow. Second operand has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 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) [2021-03-26 10:34:49,488 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:34:49,488 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 172 [2021-03-26 10:34:49,488 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:34:49,623 INFO L129 PetriNetUnfolder]: 139/317 cut-off events. [2021-03-26 10:34:49,623 INFO L130 PetriNetUnfolder]: For 2085/2268 co-relation queries the response was YES. [2021-03-26 10:34:49,625 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1629 conditions, 317 events. 139/317 cut-off events. For 2085/2268 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1650 event pairs, 40 based on Foata normal form. 20/331 useless extension candidates. Maximal degree in co-relation 1598. Up to 203 conditions per place. [2021-03-26 10:34:49,627 INFO L132 encePairwiseOnDemand]: 164/172 looper letters, 28 selfloop transitions, 20 changer transitions 1/63 dead transitions. [2021-03-26 10:34:49,627 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 63 transitions, 690 flow [2021-03-26 10:34:49,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:34:49,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:34:49,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 672 transitions. [2021-03-26 10:34:49,631 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7813953488372093 [2021-03-26 10:34:49,631 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 672 transitions. [2021-03-26 10:34:49,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 672 transitions. [2021-03-26 10:34:49,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:34:49,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 672 transitions. [2021-03-26 10:34:49,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 134.4) internal successors, (672), 5 states have internal predecessors, (672), 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) [2021-03-26 10:34:49,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 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) [2021-03-26 10:34:49,634 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 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) [2021-03-26 10:34:49,634 INFO L185 Difference]: Start difference. First operand has 59 places, 52 transitions, 492 flow. Second operand 5 states and 672 transitions. [2021-03-26 10:34:49,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 63 transitions, 690 flow [2021-03-26 10:34:49,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 63 transitions, 653 flow, removed 8 selfloop flow, removed 2 redundant places. [2021-03-26 10:34:49,641 INFO L241 Difference]: Finished difference. Result has 63 places, 59 transitions, 585 flow [2021-03-26 10:34:49,641 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=585, PETRI_PLACES=63, PETRI_TRANSITIONS=59} [2021-03-26 10:34:49,642 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 17 predicate places. [2021-03-26 10:34:49,642 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:34:49,642 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 59 transitions, 585 flow [2021-03-26 10:34:49,642 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 59 transitions, 585 flow [2021-03-26 10:34:49,643 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 59 transitions, 585 flow [2021-03-26 10:34:49,680 INFO L129 PetriNetUnfolder]: 122/290 cut-off events. [2021-03-26 10:34:49,681 INFO L130 PetriNetUnfolder]: For 2226/2347 co-relation queries the response was YES. [2021-03-26 10:34:49,682 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1466 conditions, 290 events. 122/290 cut-off events. For 2226/2347 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 1568 event pairs, 23 based on Foata normal form. 13/285 useless extension candidates. Maximal degree in co-relation 1435. Up to 134 conditions per place. [2021-03-26 10:34:49,685 INFO L142 LiptonReduction]: Number of co-enabled transitions 350 [2021-03-26 10:34:49,705 INFO L154 LiptonReduction]: Checked pairs total: 433 [2021-03-26 10:34:49,705 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:34:49,706 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 64 [2021-03-26 10:34:49,706 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 59 transitions, 585 flow [2021-03-26 10:34:49,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 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) [2021-03-26 10:34:49,706 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:34:49,707 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:34:49,707 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-26 10:34:49,707 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:34:49,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:34:49,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1019527528, now seen corresponding path program 1 times [2021-03-26 10:34:49,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:34:49,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711048514] [2021-03-26 10:34:49,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:34:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:34:49,770 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-26 10:34:49,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 10:34:49,801 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-26 10:34:49,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 10:34:49,804 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 10:34:49,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 10:34:49,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:49,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:34:49,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:34:49,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711048514] [2021-03-26 10:34:49,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:34:49,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:34:49,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512988217] [2021-03-26 10:34:49,880 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:34:49,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:34:49,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:34:49,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:34:49,882 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 172 [2021-03-26 10:34:49,882 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 59 transitions, 585 flow. Second operand has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 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) [2021-03-26 10:34:49,882 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:34:49,882 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 172 [2021-03-26 10:34:49,882 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:34:50,033 INFO L129 PetriNetUnfolder]: 129/293 cut-off events. [2021-03-26 10:34:50,033 INFO L130 PetriNetUnfolder]: For 2235/2427 co-relation queries the response was YES. [2021-03-26 10:34:50,034 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1642 conditions, 293 events. 129/293 cut-off events. For 2235/2427 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1437 event pairs, 32 based on Foata normal form. 40/327 useless extension candidates. Maximal degree in co-relation 1609. Up to 169 conditions per place. [2021-03-26 10:34:50,037 INFO L132 encePairwiseOnDemand]: 165/172 looper letters, 25 selfloop transitions, 31 changer transitions 0/70 dead transitions. [2021-03-26 10:34:50,037 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 70 transitions, 809 flow [2021-03-26 10:34:50,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:34:50,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:34:50,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 783 transitions. [2021-03-26 10:34:50,040 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7587209302325582 [2021-03-26 10:34:50,040 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 783 transitions. [2021-03-26 10:34:50,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 783 transitions. [2021-03-26 10:34:50,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:34:50,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 783 transitions. [2021-03-26 10:34:50,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 130.5) internal successors, (783), 6 states have internal predecessors, (783), 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) [2021-03-26 10:34:50,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 172.0) internal successors, (1204), 7 states have internal predecessors, (1204), 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) [2021-03-26 10:34:50,044 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 172.0) internal successors, (1204), 7 states have internal predecessors, (1204), 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) [2021-03-26 10:34:50,044 INFO L185 Difference]: Start difference. First operand has 63 places, 59 transitions, 585 flow. Second operand 6 states and 783 transitions. [2021-03-26 10:34:50,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 70 transitions, 809 flow [2021-03-26 10:34:50,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 70 transitions, 779 flow, removed 9 selfloop flow, removed 1 redundant places. [2021-03-26 10:34:50,052 INFO L241 Difference]: Finished difference. Result has 69 places, 66 transitions, 726 flow [2021-03-26 10:34:50,053 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=726, PETRI_PLACES=69, PETRI_TRANSITIONS=66} [2021-03-26 10:34:50,053 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 23 predicate places. [2021-03-26 10:34:50,053 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:34:50,053 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 66 transitions, 726 flow [2021-03-26 10:34:50,053 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 66 transitions, 726 flow [2021-03-26 10:34:50,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 66 transitions, 726 flow [2021-03-26 10:34:50,093 INFO L129 PetriNetUnfolder]: 115/278 cut-off events. [2021-03-26 10:34:50,094 INFO L130 PetriNetUnfolder]: For 3047/3225 co-relation queries the response was YES. [2021-03-26 10:34:50,095 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1583 conditions, 278 events. 115/278 cut-off events. For 3047/3225 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1523 event pairs, 17 based on Foata normal form. 18/279 useless extension candidates. Maximal degree in co-relation 1549. Up to 124 conditions per place. [2021-03-26 10:34:50,098 INFO L142 LiptonReduction]: Number of co-enabled transitions 384 [2021-03-26 10:34:50,126 INFO L154 LiptonReduction]: Checked pairs total: 609 [2021-03-26 10:34:50,126 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:34:50,127 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 74 [2021-03-26 10:34:50,127 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 66 transitions, 726 flow [2021-03-26 10:34:50,127 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 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) [2021-03-26 10:34:50,127 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:34:50,128 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:34:50,128 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-26 10:34:50,128 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:34:50,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:34:50,128 INFO L82 PathProgramCache]: Analyzing trace with hash 679498337, now seen corresponding path program 1 times [2021-03-26 10:34:50,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:34:50,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61945803] [2021-03-26 10:34:50,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:34:50,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:34:50,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:50,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:34:50,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:50,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:34:50,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:50,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:34:50,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:34:50,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61945803] [2021-03-26 10:34:50,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:34:50,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:34:50,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533259603] [2021-03-26 10:34:50,174 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:34:50,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:34:50,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:34:50,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:34:50,175 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 172 [2021-03-26 10:34:50,175 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 66 transitions, 726 flow. Second operand has 4 states, 4 states have (on average 145.25) internal successors, (581), 4 states have internal predecessors, (581), 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) [2021-03-26 10:34:50,175 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:34:50,175 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 172 [2021-03-26 10:34:50,176 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:34:50,262 INFO L129 PetriNetUnfolder]: 186/426 cut-off events. [2021-03-26 10:34:50,262 INFO L130 PetriNetUnfolder]: For 5515/5753 co-relation queries the response was YES. [2021-03-26 10:34:50,265 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2398 conditions, 426 events. 186/426 cut-off events. For 5515/5753 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 2490 event pairs, 37 based on Foata normal form. 59/443 useless extension candidates. Maximal degree in co-relation 2362. Up to 206 conditions per place. [2021-03-26 10:34:50,267 INFO L132 encePairwiseOnDemand]: 168/172 looper letters, 4 selfloop transitions, 3 changer transitions 2/68 dead transitions. [2021-03-26 10:34:50,267 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 68 transitions, 752 flow [2021-03-26 10:34:50,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:34:50,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:34:50,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 729 transitions. [2021-03-26 10:34:50,270 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8476744186046512 [2021-03-26 10:34:50,270 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 729 transitions. [2021-03-26 10:34:50,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 729 transitions. [2021-03-26 10:34:50,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:34:50,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 729 transitions. [2021-03-26 10:34:50,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 145.8) internal successors, (729), 5 states have internal predecessors, (729), 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) [2021-03-26 10:34:50,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 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) [2021-03-26 10:34:50,274 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 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) [2021-03-26 10:34:50,274 INFO L185 Difference]: Start difference. First operand has 69 places, 66 transitions, 726 flow. Second operand 5 states and 729 transitions. [2021-03-26 10:34:50,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 68 transitions, 752 flow [2021-03-26 10:34:50,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 68 transitions, 709 flow, removed 8 selfloop flow, removed 2 redundant places. [2021-03-26 10:34:50,283 INFO L241 Difference]: Finished difference. Result has 73 places, 66 transitions, 696 flow [2021-03-26 10:34:50,283 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=683, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=696, PETRI_PLACES=73, PETRI_TRANSITIONS=66} [2021-03-26 10:34:50,283 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 27 predicate places. [2021-03-26 10:34:50,283 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:34:50,284 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 66 transitions, 696 flow [2021-03-26 10:34:50,284 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 66 transitions, 696 flow [2021-03-26 10:34:50,285 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 66 transitions, 696 flow [2021-03-26 10:34:50,325 INFO L129 PetriNetUnfolder]: 120/296 cut-off events. [2021-03-26 10:34:50,326 INFO L130 PetriNetUnfolder]: For 3375/3553 co-relation queries the response was YES. [2021-03-26 10:34:50,327 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1671 conditions, 296 events. 120/296 cut-off events. For 3375/3553 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 1633 event pairs, 20 based on Foata normal form. 20/293 useless extension candidates. Maximal degree in co-relation 1635. Up to 130 conditions per place. [2021-03-26 10:34:50,331 INFO L142 LiptonReduction]: Number of co-enabled transitions 360 [2021-03-26 10:34:50,481 INFO L154 LiptonReduction]: Checked pairs total: 1001 [2021-03-26 10:34:50,481 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 10:34:50,481 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 198 [2021-03-26 10:34:50,484 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 66 transitions, 708 flow [2021-03-26 10:34:50,485 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 145.25) internal successors, (581), 4 states have internal predecessors, (581), 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) [2021-03-26 10:34:50,485 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:34:50,485 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:34:50,485 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-26 10:34:50,485 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:34:50,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:34:50,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1082582437, now seen corresponding path program 2 times [2021-03-26 10:34:50,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:34:50,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239808358] [2021-03-26 10:34:50,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:34:50,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:34:50,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:50,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:34:50,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:50,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:34:50,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:50,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:34:50,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:34:50,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239808358] [2021-03-26 10:34:50,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:34:50,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:34:50,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902739080] [2021-03-26 10:34:50,565 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:34:50,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:34:50,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:34:50,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:34:50,566 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 175 [2021-03-26 10:34:50,566 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 66 transitions, 708 flow. Second operand has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 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) [2021-03-26 10:34:50,567 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:34:50,567 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 175 [2021-03-26 10:34:50,567 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:34:50,665 INFO L129 PetriNetUnfolder]: 213/500 cut-off events. [2021-03-26 10:34:50,665 INFO L130 PetriNetUnfolder]: For 4521/4675 co-relation queries the response was YES. [2021-03-26 10:34:50,669 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2204 conditions, 500 events. 213/500 cut-off events. For 4521/4675 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 3146 event pairs, 74 based on Foata normal form. 115/587 useless extension candidates. Maximal degree in co-relation 2166. Up to 245 conditions per place. [2021-03-26 10:34:50,673 INFO L132 encePairwiseOnDemand]: 169/175 looper letters, 10 selfloop transitions, 8 changer transitions 0/63 dead transitions. [2021-03-26 10:34:50,673 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 63 transitions, 593 flow [2021-03-26 10:34:50,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:34:50,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:34:50,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 723 transitions. [2021-03-26 10:34:50,676 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8262857142857143 [2021-03-26 10:34:50,676 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 723 transitions. [2021-03-26 10:34:50,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 723 transitions. [2021-03-26 10:34:50,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:34:50,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 723 transitions. [2021-03-26 10:34:50,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 144.6) internal successors, (723), 5 states have internal predecessors, (723), 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) [2021-03-26 10:34:50,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 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) [2021-03-26 10:34:50,681 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 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) [2021-03-26 10:34:50,681 INFO L185 Difference]: Start difference. First operand has 71 places, 66 transitions, 708 flow. Second operand 5 states and 723 transitions. [2021-03-26 10:34:50,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 63 transitions, 593 flow [2021-03-26 10:34:50,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 63 transitions, 561 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-03-26 10:34:50,690 INFO L241 Difference]: Finished difference. Result has 72 places, 60 transitions, 573 flow [2021-03-26 10:34:50,690 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=505, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=573, PETRI_PLACES=72, PETRI_TRANSITIONS=60} [2021-03-26 10:34:50,691 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 26 predicate places. [2021-03-26 10:34:50,691 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:34:50,691 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 60 transitions, 573 flow [2021-03-26 10:34:50,691 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 60 transitions, 573 flow [2021-03-26 10:34:50,691 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 60 transitions, 573 flow [2021-03-26 10:34:50,751 INFO L129 PetriNetUnfolder]: 204/491 cut-off events. [2021-03-26 10:34:50,751 INFO L130 PetriNetUnfolder]: For 3399/3554 co-relation queries the response was YES. [2021-03-26 10:34:50,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2276 conditions, 491 events. 204/491 cut-off events. For 3399/3554 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 3135 event pairs, 59 based on Foata normal form. 45/506 useless extension candidates. Maximal degree in co-relation 2239. Up to 233 conditions per place. [2021-03-26 10:34:50,758 INFO L142 LiptonReduction]: Number of co-enabled transitions 436 [2021-03-26 10:34:50,765 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:34:50,765 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:34:50,765 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 74 [2021-03-26 10:34:50,766 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 60 transitions, 573 flow [2021-03-26 10:34:50,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 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) [2021-03-26 10:34:50,766 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:34:50,766 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:34:50,766 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-26 10:34:50,766 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:34:50,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:34:50,767 INFO L82 PathProgramCache]: Analyzing trace with hash -564309333, now seen corresponding path program 1 times [2021-03-26 10:34:50,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:34:50,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949165495] [2021-03-26 10:34:50,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:34:50,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:34:50,830 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-03-26 10:34:50,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 10:34:50,859 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-26 10:34:50,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 10:34:50,892 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 10:34:50,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 10:34:50,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:50,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:34:50,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:50,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:34:50,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:34:50,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949165495] [2021-03-26 10:34:50,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:34:50,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:34:50,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954919206] [2021-03-26 10:34:50,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:34:50,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:34:50,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:34:50,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:34:50,946 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 175 [2021-03-26 10:34:50,947 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 60 transitions, 573 flow. Second operand 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) [2021-03-26 10:34:50,947 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:34:50,947 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 175 [2021-03-26 10:34:50,947 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:34:51,228 INFO L129 PetriNetUnfolder]: 234/534 cut-off events. [2021-03-26 10:34:51,228 INFO L130 PetriNetUnfolder]: For 4453/4659 co-relation queries the response was YES. [2021-03-26 10:34:51,231 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2759 conditions, 534 events. 234/534 cut-off events. For 4453/4659 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 3328 event pairs, 81 based on Foata normal form. 70/574 useless extension candidates. Maximal degree in co-relation 2720. Up to 246 conditions per place. [2021-03-26 10:34:51,234 INFO L132 encePairwiseOnDemand]: 166/175 looper letters, 21 selfloop transitions, 27 changer transitions 0/69 dead transitions. [2021-03-26 10:34:51,234 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 69 transitions, 787 flow [2021-03-26 10:34:51,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 10:34:51,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 10:34:51,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1024 transitions. [2021-03-26 10:34:51,237 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7314285714285714 [2021-03-26 10:34:51,238 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1024 transitions. [2021-03-26 10:34:51,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1024 transitions. [2021-03-26 10:34:51,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:34:51,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1024 transitions. [2021-03-26 10:34:51,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 128.0) internal successors, (1024), 8 states have internal predecessors, (1024), 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) [2021-03-26 10:34:51,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 175.0) internal successors, (1575), 9 states have internal predecessors, (1575), 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) [2021-03-26 10:34:51,243 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 175.0) internal successors, (1575), 9 states have internal predecessors, (1575), 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) [2021-03-26 10:34:51,243 INFO L185 Difference]: Start difference. First operand has 72 places, 60 transitions, 573 flow. Second operand 8 states and 1024 transitions. [2021-03-26 10:34:51,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 69 transitions, 787 flow [2021-03-26 10:34:51,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 69 transitions, 783 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:34:51,253 INFO L241 Difference]: Finished difference. Result has 80 places, 66 transitions, 716 flow [2021-03-26 10:34:51,253 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=716, PETRI_PLACES=80, PETRI_TRANSITIONS=66} [2021-03-26 10:34:51,253 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 34 predicate places. [2021-03-26 10:34:51,254 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:34:51,254 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 66 transitions, 716 flow [2021-03-26 10:34:51,254 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 66 transitions, 716 flow [2021-03-26 10:34:51,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 66 transitions, 716 flow [2021-03-26 10:34:51,314 INFO L129 PetriNetUnfolder]: 214/517 cut-off events. [2021-03-26 10:34:51,314 INFO L130 PetriNetUnfolder]: For 4136/4265 co-relation queries the response was YES. [2021-03-26 10:34:51,317 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2496 conditions, 517 events. 214/517 cut-off events. For 4136/4265 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3282 event pairs, 69 based on Foata normal form. 50/539 useless extension candidates. Maximal degree in co-relation 2456. Up to 246 conditions per place. [2021-03-26 10:34:51,321 INFO L142 LiptonReduction]: Number of co-enabled transitions 460 [2021-03-26 10:34:51,568 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-03-26 10:34:52,003 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 89 [2021-03-26 10:34:52,131 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-26 10:34:52,319 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-03-26 10:34:52,765 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 92 [2021-03-26 10:34:52,905 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-03-26 10:34:52,917 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-26 10:34:52,918 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 10:34:52,918 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1664 [2021-03-26 10:34:52,918 INFO L480 AbstractCegarLoop]: Abstraction has has 80 places, 66 transitions, 751 flow [2021-03-26 10:34:52,919 INFO L481 AbstractCegarLoop]: Interpolant automaton has 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) [2021-03-26 10:34:52,919 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:34:52,919 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:34:52,919 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-26 10:34:52,919 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:34:52,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:34:52,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1509071316, now seen corresponding path program 1 times [2021-03-26 10:34:52,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:34:52,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546221024] [2021-03-26 10:34:52,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:34:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:34:52,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:52,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 10:34:52,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:52,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 10:34:53,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:53,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 10:34:53,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:53,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 10:34:53,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:53,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 10:34:53,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:34:53,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546221024] [2021-03-26 10:34:53,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:34:53,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:34:53,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108905526] [2021-03-26 10:34:53,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:34:53,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:34:53,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:34:53,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:34:53,042 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 177 [2021-03-26 10:34:53,042 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 66 transitions, 751 flow. Second operand has 5 states, 5 states have (on average 128.2) internal successors, (641), 5 states have internal predecessors, (641), 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) [2021-03-26 10:34:53,042 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:34:53,042 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 177 [2021-03-26 10:34:53,043 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:34:53,220 INFO L129 PetriNetUnfolder]: 230/521 cut-off events. [2021-03-26 10:34:53,221 INFO L130 PetriNetUnfolder]: For 5185/5403 co-relation queries the response was YES. [2021-03-26 10:34:53,223 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2849 conditions, 521 events. 230/521 cut-off events. For 5185/5403 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 3219 event pairs, 80 based on Foata normal form. 49/534 useless extension candidates. Maximal degree in co-relation 2807. Up to 239 conditions per place. [2021-03-26 10:34:53,226 INFO L132 encePairwiseOnDemand]: 170/177 looper letters, 32 selfloop transitions, 13 changer transitions 1/67 dead transitions. [2021-03-26 10:34:53,226 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 67 transitions, 855 flow [2021-03-26 10:34:53,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:34:53,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:34:53,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 527 transitions. [2021-03-26 10:34:53,229 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7443502824858758 [2021-03-26 10:34:53,229 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 527 transitions. [2021-03-26 10:34:53,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 527 transitions. [2021-03-26 10:34:53,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:34:53,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 527 transitions. [2021-03-26 10:34:53,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 131.75) internal successors, (527), 4 states have internal predecessors, (527), 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) [2021-03-26 10:34:53,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 177.0) internal successors, (885), 5 states have internal predecessors, (885), 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) [2021-03-26 10:34:53,232 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 177.0) internal successors, (885), 5 states have internal predecessors, (885), 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) [2021-03-26 10:34:53,232 INFO L185 Difference]: Start difference. First operand has 80 places, 66 transitions, 751 flow. Second operand 4 states and 527 transitions. [2021-03-26 10:34:53,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 67 transitions, 855 flow [2021-03-26 10:34:53,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 67 transitions, 781 flow, removed 18 selfloop flow, removed 4 redundant places. [2021-03-26 10:34:53,243 INFO L241 Difference]: Finished difference. Result has 80 places, 65 transitions, 707 flow [2021-03-26 10:34:53,244 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=707, PETRI_PLACES=80, PETRI_TRANSITIONS=65} [2021-03-26 10:34:53,244 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 34 predicate places. [2021-03-26 10:34:53,244 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:34:53,244 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 65 transitions, 707 flow [2021-03-26 10:34:53,244 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 65 transitions, 707 flow [2021-03-26 10:34:53,246 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 65 transitions, 707 flow [2021-03-26 10:34:53,308 INFO L129 PetriNetUnfolder]: 220/518 cut-off events. [2021-03-26 10:34:53,308 INFO L130 PetriNetUnfolder]: For 4788/4939 co-relation queries the response was YES. [2021-03-26 10:34:53,311 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2556 conditions, 518 events. 220/518 cut-off events. For 4788/4939 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 3279 event pairs, 65 based on Foata normal form. 36/523 useless extension candidates. Maximal degree in co-relation 2516. Up to 243 conditions per place. [2021-03-26 10:34:53,316 INFO L142 LiptonReduction]: Number of co-enabled transitions 460 [2021-03-26 10:34:53,329 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:34:53,330 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:34:53,330 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 86 [2021-03-26 10:34:53,331 INFO L480 AbstractCegarLoop]: Abstraction has has 80 places, 65 transitions, 707 flow [2021-03-26 10:34:53,335 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 128.2) internal successors, (641), 5 states have internal predecessors, (641), 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) [2021-03-26 10:34:53,335 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:34:53,335 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:34:53,335 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-26 10:34:53,335 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:34:53,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:34:53,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1764399235, now seen corresponding path program 1 times [2021-03-26 10:34:53,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:34:53,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115619268] [2021-03-26 10:34:53,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:34:53,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:34:53,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:53,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:34:53,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:53,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 10:34:53,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:53,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:34:53,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:53,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:34:53,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:34:53,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115619268] [2021-03-26 10:34:53,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:34:53,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:34:53,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497564765] [2021-03-26 10:34:53,425 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:34:53,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:34:53,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:34:53,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:34:53,427 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 177 [2021-03-26 10:34:53,427 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 65 transitions, 707 flow. Second operand has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 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) [2021-03-26 10:34:53,427 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:34:53,427 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 177 [2021-03-26 10:34:53,427 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:34:53,577 INFO L129 PetriNetUnfolder]: 239/550 cut-off events. [2021-03-26 10:34:53,577 INFO L130 PetriNetUnfolder]: For 5710/5961 co-relation queries the response was YES. [2021-03-26 10:34:53,580 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2978 conditions, 550 events. 239/550 cut-off events. For 5710/5961 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 3523 event pairs, 77 based on Foata normal form. 71/583 useless extension candidates. Maximal degree in co-relation 2936. Up to 251 conditions per place. [2021-03-26 10:34:53,583 INFO L132 encePairwiseOnDemand]: 171/177 looper letters, 22 selfloop transitions, 18 changer transitions 8/69 dead transitions. [2021-03-26 10:34:53,583 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 69 transitions, 855 flow [2021-03-26 10:34:53,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:34:53,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:34:53,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 525 transitions. [2021-03-26 10:34:53,586 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7415254237288136 [2021-03-26 10:34:53,586 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 525 transitions. [2021-03-26 10:34:53,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 525 transitions. [2021-03-26 10:34:53,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:34:53,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 525 transitions. [2021-03-26 10:34:53,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 131.25) internal successors, (525), 4 states have internal predecessors, (525), 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) [2021-03-26 10:34:53,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 177.0) internal successors, (885), 5 states have internal predecessors, (885), 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) [2021-03-26 10:34:53,602 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 177.0) internal successors, (885), 5 states have internal predecessors, (885), 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) [2021-03-26 10:34:53,602 INFO L185 Difference]: Start difference. First operand has 80 places, 65 transitions, 707 flow. Second operand 4 states and 525 transitions. [2021-03-26 10:34:53,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 69 transitions, 855 flow [2021-03-26 10:34:53,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 69 transitions, 796 flow, removed 9 selfloop flow, removed 5 redundant places. [2021-03-26 10:34:53,613 INFO L241 Difference]: Finished difference. Result has 79 places, 59 transitions, 639 flow [2021-03-26 10:34:53,613 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=639, PETRI_PLACES=79, PETRI_TRANSITIONS=59} [2021-03-26 10:34:53,613 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 33 predicate places. [2021-03-26 10:34:53,613 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:34:53,613 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 59 transitions, 639 flow [2021-03-26 10:34:53,616 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 59 transitions, 639 flow [2021-03-26 10:34:53,616 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 59 transitions, 639 flow [2021-03-26 10:34:53,677 INFO L129 PetriNetUnfolder]: 188/472 cut-off events. [2021-03-26 10:34:53,678 INFO L130 PetriNetUnfolder]: For 3587/3697 co-relation queries the response was YES. [2021-03-26 10:34:53,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2293 conditions, 472 events. 188/472 cut-off events. For 3587/3697 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 3042 event pairs, 66 based on Foata normal form. 47/497 useless extension candidates. Maximal degree in co-relation 2254. Up to 221 conditions per place. [2021-03-26 10:34:53,685 INFO L142 LiptonReduction]: Number of co-enabled transitions 402 [2021-03-26 10:34:53,688 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:34:53,688 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:34:53,688 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 75 [2021-03-26 10:34:53,689 INFO L480 AbstractCegarLoop]: Abstraction has has 79 places, 59 transitions, 639 flow [2021-03-26 10:34:53,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 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) [2021-03-26 10:34:53,690 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:34:53,690 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:34:53,690 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-26 10:34:53,690 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:34:53,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:34:53,690 INFO L82 PathProgramCache]: Analyzing trace with hash -557904268, now seen corresponding path program 1 times [2021-03-26 10:34:53,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:34:53,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006947998] [2021-03-26 10:34:53,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:34:53,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:34:53,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:53,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:34:53,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:53,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:34:53,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:53,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 10:34:53,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:53,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:34:53,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:53,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:34:53,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:34:53,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006947998] [2021-03-26 10:34:53,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:34:53,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:34:53,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411633659] [2021-03-26 10:34:53,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 10:34:53,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:34:53,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 10:34:53,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-26 10:34:53,809 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 177 [2021-03-26 10:34:53,810 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 59 transitions, 639 flow. Second operand has 7 states, 7 states have (on average 125.85714285714286) internal successors, (881), 7 states have internal predecessors, (881), 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) [2021-03-26 10:34:53,810 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:34:53,810 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 177 [2021-03-26 10:34:53,810 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:34:53,995 INFO L129 PetriNetUnfolder]: 211/499 cut-off events. [2021-03-26 10:34:53,995 INFO L130 PetriNetUnfolder]: For 4704/4903 co-relation queries the response was YES. [2021-03-26 10:34:53,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2707 conditions, 499 events. 211/499 cut-off events. For 4704/4903 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 3142 event pairs, 76 based on Foata normal form. 67/534 useless extension candidates. Maximal degree in co-relation 2666. Up to 229 conditions per place. [2021-03-26 10:34:54,001 INFO L132 encePairwiseOnDemand]: 169/177 looper letters, 17 selfloop transitions, 21 changer transitions 5/64 dead transitions. [2021-03-26 10:34:54,001 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 64 transitions, 793 flow [2021-03-26 10:34:54,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:34:54,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:34:54,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 775 transitions. [2021-03-26 10:34:54,004 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7297551789077212 [2021-03-26 10:34:54,004 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 775 transitions. [2021-03-26 10:34:54,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 775 transitions. [2021-03-26 10:34:54,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:34:54,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 775 transitions. [2021-03-26 10:34:54,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.16666666666666) internal successors, (775), 6 states have internal predecessors, (775), 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) [2021-03-26 10:34:54,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 177.0) internal successors, (1239), 7 states have internal predecessors, (1239), 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) [2021-03-26 10:34:54,007 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 177.0) internal successors, (1239), 7 states have internal predecessors, (1239), 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) [2021-03-26 10:34:54,008 INFO L185 Difference]: Start difference. First operand has 79 places, 59 transitions, 639 flow. Second operand 6 states and 775 transitions. [2021-03-26 10:34:54,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 64 transitions, 793 flow [2021-03-26 10:34:54,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 64 transitions, 755 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-03-26 10:34:54,016 INFO L241 Difference]: Finished difference. Result has 81 places, 57 transitions, 651 flow [2021-03-26 10:34:54,017 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=651, PETRI_PLACES=81, PETRI_TRANSITIONS=57} [2021-03-26 10:34:54,017 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 35 predicate places. [2021-03-26 10:34:54,017 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:34:54,017 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 57 transitions, 651 flow [2021-03-26 10:34:54,017 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 57 transitions, 651 flow [2021-03-26 10:34:54,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 57 transitions, 651 flow [2021-03-26 10:34:54,077 INFO L129 PetriNetUnfolder]: 202/500 cut-off events. [2021-03-26 10:34:54,077 INFO L130 PetriNetUnfolder]: For 4281/4426 co-relation queries the response was YES. [2021-03-26 10:34:54,080 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2510 conditions, 500 events. 202/500 cut-off events. For 4281/4426 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 3262 event pairs, 70 based on Foata normal form. 49/522 useless extension candidates. Maximal degree in co-relation 2471. Up to 241 conditions per place. [2021-03-26 10:34:54,086 INFO L142 LiptonReduction]: Number of co-enabled transitions 424 [2021-03-26 10:34:54,095 INFO L154 LiptonReduction]: Checked pairs total: 38 [2021-03-26 10:34:54,096 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:34:54,096 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 79 [2021-03-26 10:34:54,097 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 56 transitions, 645 flow [2021-03-26 10:34:54,097 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 125.85714285714286) internal successors, (881), 7 states have internal predecessors, (881), 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) [2021-03-26 10:34:54,097 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:34:54,098 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:34:54,098 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-26 10:34:54,098 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:34:54,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:34:54,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1086804221, now seen corresponding path program 1 times [2021-03-26 10:34:54,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:34:54,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655695319] [2021-03-26 10:34:54,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:34:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:34:54,177 INFO L142 QuantifierPusher]: treesize reduction 31, result has 59.2 percent of original size [2021-03-26 10:34:54,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 10:34:54,219 INFO L142 QuantifierPusher]: treesize reduction 30, result has 34.8 percent of original size [2021-03-26 10:34:54,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 10:34:54,237 INFO L142 QuantifierPusher]: treesize reduction 2, result has 97.4 percent of original size [2021-03-26 10:34:54,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-26 10:34:54,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:54,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 10:34:54,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:54,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:34:54,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:34:54,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655695319] [2021-03-26 10:34:54,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:34:54,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:34:54,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073754489] [2021-03-26 10:34:54,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 10:34:54,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:34:54,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 10:34:54,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 10:34:54,376 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 177 [2021-03-26 10:34:54,377 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 56 transitions, 645 flow. Second operand has 7 states, 7 states have (on average 120.85714285714286) internal successors, (846), 7 states have internal predecessors, (846), 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) [2021-03-26 10:34:54,377 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:34:54,377 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 177 [2021-03-26 10:34:54,377 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:34:54,618 INFO L129 PetriNetUnfolder]: 201/454 cut-off events. [2021-03-26 10:34:54,618 INFO L130 PetriNetUnfolder]: For 4843/4954 co-relation queries the response was YES. [2021-03-26 10:34:54,620 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2710 conditions, 454 events. 201/454 cut-off events. For 4843/4954 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 2592 event pairs, 79 based on Foata normal form. 15/447 useless extension candidates. Maximal degree in co-relation 2669. Up to 227 conditions per place. [2021-03-26 10:34:54,623 INFO L132 encePairwiseOnDemand]: 169/177 looper letters, 25 selfloop transitions, 9 changer transitions 7/58 dead transitions. [2021-03-26 10:34:54,623 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 58 transitions, 779 flow [2021-03-26 10:34:54,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:34:54,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:34:54,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 621 transitions. [2021-03-26 10:34:54,626 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7016949152542373 [2021-03-26 10:34:54,626 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 621 transitions. [2021-03-26 10:34:54,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 621 transitions. [2021-03-26 10:34:54,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:34:54,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 621 transitions. [2021-03-26 10:34:54,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 124.2) internal successors, (621), 5 states have internal predecessors, (621), 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) [2021-03-26 10:34:54,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 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) [2021-03-26 10:34:54,630 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 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) [2021-03-26 10:34:54,630 INFO L185 Difference]: Start difference. First operand has 81 places, 56 transitions, 645 flow. Second operand 5 states and 621 transitions. [2021-03-26 10:34:54,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 58 transitions, 779 flow [2021-03-26 10:34:54,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 58 transitions, 710 flow, removed 11 selfloop flow, removed 9 redundant places. [2021-03-26 10:34:54,640 INFO L241 Difference]: Finished difference. Result has 75 places, 48 transitions, 524 flow [2021-03-26 10:34:54,640 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=573, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=524, PETRI_PLACES=75, PETRI_TRANSITIONS=48} [2021-03-26 10:34:54,641 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 29 predicate places. [2021-03-26 10:34:54,641 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:34:54,641 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 48 transitions, 524 flow [2021-03-26 10:34:54,641 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 48 transitions, 524 flow [2021-03-26 10:34:54,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 48 transitions, 524 flow [2021-03-26 10:34:54,700 INFO L129 PetriNetUnfolder]: 172/406 cut-off events. [2021-03-26 10:34:54,700 INFO L130 PetriNetUnfolder]: For 3703/3760 co-relation queries the response was YES. [2021-03-26 10:34:54,702 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2058 conditions, 406 events. 172/406 cut-off events. For 3703/3760 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2323 event pairs, 65 based on Foata normal form. 14/400 useless extension candidates. Maximal degree in co-relation 2021. Up to 180 conditions per place. [2021-03-26 10:34:54,707 INFO L142 LiptonReduction]: Number of co-enabled transitions 260 [2021-03-26 10:34:54,710 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:34:54,710 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:34:54,710 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 69 [2021-03-26 10:34:54,711 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 48 transitions, 524 flow [2021-03-26 10:34:54,711 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 120.85714285714286) internal successors, (846), 7 states have internal predecessors, (846), 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) [2021-03-26 10:34:54,711 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:34:54,711 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:34:54,712 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-26 10:34:54,712 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:34:54,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:34:54,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1475341766, now seen corresponding path program 1 times [2021-03-26 10:34:54,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:34:54,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429551701] [2021-03-26 10:34:54,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:34:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:34:54,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:54,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:34:54,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:54,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:34:54,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:54,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:34:54,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:54,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:34:54,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:34:54,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429551701] [2021-03-26 10:34:54,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:34:54,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:34:54,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988501036] [2021-03-26 10:34:54,784 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:34:54,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:34:54,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:34:54,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:34:54,786 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 177 [2021-03-26 10:34:54,786 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 48 transitions, 524 flow. Second operand has 5 states, 5 states have (on average 143.8) internal successors, (719), 5 states have internal predecessors, (719), 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) [2021-03-26 10:34:54,786 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:34:54,786 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 177 [2021-03-26 10:34:54,786 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:34:54,864 INFO L129 PetriNetUnfolder]: 79/247 cut-off events. [2021-03-26 10:34:54,865 INFO L130 PetriNetUnfolder]: For 1859/1949 co-relation queries the response was YES. [2021-03-26 10:34:54,866 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1280 conditions, 247 events. 79/247 cut-off events. For 1859/1949 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1373 event pairs, 13 based on Foata normal form. 81/322 useless extension candidates. Maximal degree in co-relation 1241. Up to 134 conditions per place. [2021-03-26 10:34:54,867 INFO L132 encePairwiseOnDemand]: 171/177 looper letters, 5 selfloop transitions, 11 changer transitions 3/58 dead transitions. [2021-03-26 10:34:54,867 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 58 transitions, 620 flow [2021-03-26 10:34:54,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:34:54,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:34:54,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 879 transitions. [2021-03-26 10:34:54,870 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.827683615819209 [2021-03-26 10:34:54,870 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 879 transitions. [2021-03-26 10:34:54,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 879 transitions. [2021-03-26 10:34:54,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:34:54,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 879 transitions. [2021-03-26 10:34:54,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 146.5) internal successors, (879), 6 states have internal predecessors, (879), 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) [2021-03-26 10:34:54,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 177.0) internal successors, (1239), 7 states have internal predecessors, (1239), 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) [2021-03-26 10:34:54,875 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 177.0) internal successors, (1239), 7 states have internal predecessors, (1239), 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) [2021-03-26 10:34:54,875 INFO L185 Difference]: Start difference. First operand has 73 places, 48 transitions, 524 flow. Second operand 6 states and 879 transitions. [2021-03-26 10:34:54,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 58 transitions, 620 flow [2021-03-26 10:34:54,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 58 transitions, 532 flow, removed 15 selfloop flow, removed 9 redundant places. [2021-03-26 10:34:54,882 INFO L241 Difference]: Finished difference. Result has 72 places, 55 transitions, 524 flow [2021-03-26 10:34:54,882 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=524, PETRI_PLACES=72, PETRI_TRANSITIONS=55} [2021-03-26 10:34:54,883 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 26 predicate places. [2021-03-26 10:34:54,883 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:34:54,883 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 55 transitions, 524 flow [2021-03-26 10:34:54,883 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 55 transitions, 524 flow [2021-03-26 10:34:54,884 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 55 transitions, 524 flow [2021-03-26 10:34:54,909 INFO L129 PetriNetUnfolder]: 77/254 cut-off events. [2021-03-26 10:34:54,910 INFO L130 PetriNetUnfolder]: For 1265/1302 co-relation queries the response was YES. [2021-03-26 10:34:54,911 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1281 conditions, 254 events. 77/254 cut-off events. For 1265/1302 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1472 event pairs, 10 based on Foata normal form. 6/253 useless extension candidates. Maximal degree in co-relation 1247. Up to 139 conditions per place. [2021-03-26 10:34:54,913 INFO L142 LiptonReduction]: Number of co-enabled transitions 280 [2021-03-26 10:34:54,919 INFO L154 LiptonReduction]: Checked pairs total: 18 [2021-03-26 10:34:54,920 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:34:54,920 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-03-26 10:34:54,920 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 54 transitions, 516 flow [2021-03-26 10:34:54,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 143.8) internal successors, (719), 5 states have internal predecessors, (719), 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) [2021-03-26 10:34:54,920 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:34:54,921 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:34:54,921 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-26 10:34:54,921 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:34:54,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:34:54,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1708838463, now seen corresponding path program 1 times [2021-03-26 10:34:54,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:34:54,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192465715] [2021-03-26 10:34:54,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:34:54,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:34:54,989 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-26 10:34:54,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 10:34:55,016 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 10:34:55,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 10:34:55,055 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 10:34:55,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 10:34:55,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:55,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 10:34:55,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:55,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 10:34:55,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:55,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 10:34:55,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:34:55,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192465715] [2021-03-26 10:34:55,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:34:55,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 10:34:55,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737394403] [2021-03-26 10:34:55,172 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 10:34:55,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:34:55,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 10:34:55,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-03-26 10:34:55,173 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 177 [2021-03-26 10:34:55,174 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 54 transitions, 516 flow. Second operand has 8 states, 8 states have (on average 120.875) internal successors, (967), 8 states have internal predecessors, (967), 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) [2021-03-26 10:34:55,174 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:34:55,174 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 177 [2021-03-26 10:34:55,174 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:34:55,330 INFO L129 PetriNetUnfolder]: 67/204 cut-off events. [2021-03-26 10:34:55,330 INFO L130 PetriNetUnfolder]: For 1458/1544 co-relation queries the response was YES. [2021-03-26 10:34:55,331 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1164 conditions, 204 events. 67/204 cut-off events. For 1458/1544 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 962 event pairs, 14 based on Foata normal form. 12/210 useless extension candidates. Maximal degree in co-relation 1128. Up to 94 conditions per place. [2021-03-26 10:34:55,333 INFO L132 encePairwiseOnDemand]: 171/177 looper letters, 20 selfloop transitions, 6 changer transitions 7/53 dead transitions. [2021-03-26 10:34:55,333 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 53 transitions, 580 flow [2021-03-26 10:34:55,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:34:55,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:34:55,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 738 transitions. [2021-03-26 10:34:55,337 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6949152542372882 [2021-03-26 10:34:55,337 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 738 transitions. [2021-03-26 10:34:55,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 738 transitions. [2021-03-26 10:34:55,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:34:55,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 738 transitions. [2021-03-26 10:34:55,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 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) [2021-03-26 10:34:55,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 177.0) internal successors, (1239), 7 states have internal predecessors, (1239), 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) [2021-03-26 10:34:55,342 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 177.0) internal successors, (1239), 7 states have internal predecessors, (1239), 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) [2021-03-26 10:34:55,342 INFO L185 Difference]: Start difference. First operand has 72 places, 54 transitions, 516 flow. Second operand 6 states and 738 transitions. [2021-03-26 10:34:55,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 53 transitions, 580 flow [2021-03-26 10:34:55,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 53 transitions, 556 flow, removed 10 selfloop flow, removed 3 redundant places. [2021-03-26 10:34:55,351 INFO L241 Difference]: Finished difference. Result has 73 places, 46 transitions, 430 flow [2021-03-26 10:34:55,351 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=430, PETRI_PLACES=73, PETRI_TRANSITIONS=46} [2021-03-26 10:34:55,351 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 27 predicate places. [2021-03-26 10:34:55,351 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:34:55,351 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 46 transitions, 430 flow [2021-03-26 10:34:55,351 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 46 transitions, 430 flow [2021-03-26 10:34:55,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 46 transitions, 430 flow [2021-03-26 10:34:55,373 INFO L129 PetriNetUnfolder]: 62/194 cut-off events. [2021-03-26 10:34:55,373 INFO L130 PetriNetUnfolder]: For 1210/1234 co-relation queries the response was YES. [2021-03-26 10:34:55,374 INFO L84 FinitePrefix]: Finished finitePrefix Result has 949 conditions, 194 events. 62/194 cut-off events. For 1210/1234 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 908 event pairs, 10 based on Foata normal form. 3/192 useless extension candidates. Maximal degree in co-relation 915. Up to 59 conditions per place. [2021-03-26 10:34:55,375 INFO L142 LiptonReduction]: Number of co-enabled transitions 208 [2021-03-26 10:34:55,377 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:34:55,377 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:34:55,377 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-03-26 10:34:55,379 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 46 transitions, 430 flow [2021-03-26 10:34:55,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 120.875) internal successors, (967), 8 states have internal predecessors, (967), 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) [2021-03-26 10:34:55,379 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:34:55,379 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:34:55,379 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-26 10:34:55,379 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:34:55,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:34:55,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1856310671, now seen corresponding path program 2 times [2021-03-26 10:34:55,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:34:55,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023068348] [2021-03-26 10:34:55,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:34:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:34:55,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:55,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:34:55,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:55,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 10:34:55,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:55,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:34:55,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:55,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 10:34:55,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:55,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:34:55,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:55,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 10:34:55,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:34:55,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023068348] [2021-03-26 10:34:55,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:34:55,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 10:34:55,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286392594] [2021-03-26 10:34:55,521 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 10:34:55,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:34:55,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 10:34:55,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-26 10:34:55,523 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 177 [2021-03-26 10:34:55,523 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 46 transitions, 430 flow. Second operand has 8 states, 8 states have (on average 125.875) internal successors, (1007), 8 states have internal predecessors, (1007), 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) [2021-03-26 10:34:55,523 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:34:55,523 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 177 [2021-03-26 10:34:55,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:34:55,701 INFO L129 PetriNetUnfolder]: 65/196 cut-off events. [2021-03-26 10:34:55,702 INFO L130 PetriNetUnfolder]: For 1493/1572 co-relation queries the response was YES. [2021-03-26 10:34:55,703 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1060 conditions, 196 events. 65/196 cut-off events. For 1493/1572 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 899 event pairs, 14 based on Foata normal form. 23/213 useless extension candidates. Maximal degree in co-relation 1024. Up to 84 conditions per place. [2021-03-26 10:34:55,703 INFO L132 encePairwiseOnDemand]: 171/177 looper letters, 12 selfloop transitions, 8 changer transitions 9/49 dead transitions. [2021-03-26 10:34:55,703 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 49 transitions, 526 flow [2021-03-26 10:34:55,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:34:55,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:34:55,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 642 transitions. [2021-03-26 10:34:55,707 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7254237288135593 [2021-03-26 10:34:55,707 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 642 transitions. [2021-03-26 10:34:55,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 642 transitions. [2021-03-26 10:34:55,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:34:55,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 642 transitions. [2021-03-26 10:34:55,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 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) [2021-03-26 10:34:55,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 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) [2021-03-26 10:34:55,710 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 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) [2021-03-26 10:34:55,710 INFO L185 Difference]: Start difference. First operand has 70 places, 46 transitions, 430 flow. Second operand 5 states and 642 transitions. [2021-03-26 10:34:55,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 49 transitions, 526 flow [2021-03-26 10:34:55,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 49 transitions, 472 flow, removed 11 selfloop flow, removed 6 redundant places. [2021-03-26 10:34:55,716 INFO L241 Difference]: Finished difference. Result has 69 places, 40 transitions, 361 flow [2021-03-26 10:34:55,716 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=361, PETRI_PLACES=69, PETRI_TRANSITIONS=40} [2021-03-26 10:34:55,716 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 23 predicate places. [2021-03-26 10:34:55,716 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:34:55,716 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 40 transitions, 361 flow [2021-03-26 10:34:55,717 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 40 transitions, 361 flow [2021-03-26 10:34:55,717 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 40 transitions, 361 flow [2021-03-26 10:34:55,736 INFO L129 PetriNetUnfolder]: 61/182 cut-off events. [2021-03-26 10:34:55,736 INFO L130 PetriNetUnfolder]: For 838/855 co-relation queries the response was YES. [2021-03-26 10:34:55,737 INFO L84 FinitePrefix]: Finished finitePrefix Result has 861 conditions, 182 events. 61/182 cut-off events. For 838/855 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 809 event pairs, 12 based on Foata normal form. 4/183 useless extension candidates. Maximal degree in co-relation 829. Up to 58 conditions per place. [2021-03-26 10:34:55,738 INFO L142 LiptonReduction]: Number of co-enabled transitions 184 [2021-03-26 10:34:55,892 INFO L154 LiptonReduction]: Checked pairs total: 6 [2021-03-26 10:34:55,893 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:34:55,893 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 177 [2021-03-26 10:34:55,893 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 40 transitions, 374 flow [2021-03-26 10:34:55,894 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 125.875) internal successors, (1007), 8 states have internal predecessors, (1007), 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) [2021-03-26 10:34:55,894 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:34:55,894 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:34:55,894 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-26 10:34:55,894 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:34:55,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:34:55,894 INFO L82 PathProgramCache]: Analyzing trace with hash 545593369, now seen corresponding path program 1 times [2021-03-26 10:34:55,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:34:55,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316170927] [2021-03-26 10:34:55,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:34:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:34:55,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:55,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:34:55,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:55,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:34:55,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:55,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:34:55,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:55,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:34:55,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:34:55,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:34:55,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:34:55,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316170927] [2021-03-26 10:34:55,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:34:55,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:34:55,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740875347] [2021-03-26 10:34:55,962 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:34:55,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:34:55,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:34:55,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:34:55,963 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 178 [2021-03-26 10:34:55,963 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 40 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 144.83333333333334) internal successors, (869), 6 states have internal predecessors, (869), 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) [2021-03-26 10:34:55,963 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:34:55,964 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 178 [2021-03-26 10:34:55,964 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:34:56,015 INFO L129 PetriNetUnfolder]: 41/133 cut-off events. [2021-03-26 10:34:56,015 INFO L130 PetriNetUnfolder]: For 537/586 co-relation queries the response was YES. [2021-03-26 10:34:56,016 INFO L84 FinitePrefix]: Finished finitePrefix Result has 684 conditions, 133 events. 41/133 cut-off events. For 537/586 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 545 event pairs, 4 based on Foata normal form. 42/171 useless extension candidates. Maximal degree in co-relation 650. Up to 46 conditions per place. [2021-03-26 10:34:56,017 INFO L132 encePairwiseOnDemand]: 172/178 looper letters, 2 selfloop transitions, 11 changer transitions 6/44 dead transitions. [2021-03-26 10:34:56,017 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 44 transitions, 436 flow [2021-03-26 10:34:56,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:34:56,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:34:56,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1026 transitions. [2021-03-26 10:34:56,019 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8234349919743178 [2021-03-26 10:34:56,019 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1026 transitions. [2021-03-26 10:34:56,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1026 transitions. [2021-03-26 10:34:56,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:34:56,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1026 transitions. [2021-03-26 10:34:56,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 146.57142857142858) internal successors, (1026), 7 states have internal predecessors, (1026), 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) [2021-03-26 10:34:56,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 178.0) internal successors, (1424), 8 states have internal predecessors, (1424), 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) [2021-03-26 10:34:56,023 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 178.0) internal successors, (1424), 8 states have internal predecessors, (1424), 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) [2021-03-26 10:34:56,023 INFO L185 Difference]: Start difference. First operand has 63 places, 40 transitions, 374 flow. Second operand 7 states and 1026 transitions. [2021-03-26 10:34:56,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 44 transitions, 436 flow [2021-03-26 10:34:56,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 44 transitions, 356 flow, removed 21 selfloop flow, removed 10 redundant places. [2021-03-26 10:34:56,026 INFO L241 Difference]: Finished difference. Result has 62 places, 38 transitions, 320 flow [2021-03-26 10:34:56,026 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=320, PETRI_PLACES=62, PETRI_TRANSITIONS=38} [2021-03-26 10:34:56,028 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 16 predicate places. [2021-03-26 10:34:56,028 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:34:56,028 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 38 transitions, 320 flow [2021-03-26 10:34:56,029 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 38 transitions, 320 flow [2021-03-26 10:34:56,029 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 38 transitions, 320 flow [2021-03-26 10:34:56,036 INFO L129 PetriNetUnfolder]: 17/61 cut-off events. [2021-03-26 10:34:56,036 INFO L130 PetriNetUnfolder]: For 169/187 co-relation queries the response was YES. [2021-03-26 10:34:56,036 INFO L84 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 61 events. 17/61 cut-off events. For 169/187 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 153 event pairs, 0 based on Foata normal form. 3/62 useless extension candidates. Maximal degree in co-relation 269. Up to 19 conditions per place. [2021-03-26 10:34:56,037 INFO L142 LiptonReduction]: Number of co-enabled transitions 126 [2021-03-26 10:34:56,218 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 66 [2021-03-26 10:34:56,558 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 85 [2021-03-26 10:34:57,219 WARN L205 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 180 [2021-03-26 10:34:57,428 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-03-26 10:34:58,724 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 334 DAG size of output: 256 [2021-03-26 10:34:59,221 WARN L205 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-03-26 10:34:59,525 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-03-26 10:34:59,753 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-03-26 10:35:00,228 WARN L205 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2021-03-26 10:35:00,704 WARN L205 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2021-03-26 10:35:00,707 INFO L154 LiptonReduction]: Checked pairs total: 29 [2021-03-26 10:35:00,707 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-26 10:35:00,707 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4679 [2021-03-26 10:35:00,708 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 35 transitions, 318 flow [2021-03-26 10:35:00,708 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 144.83333333333334) internal successors, (869), 6 states have internal predecessors, (869), 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) [2021-03-26 10:35:00,708 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:00,708 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:00,708 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-26 10:35:00,708 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:00,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:00,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1793551269, now seen corresponding path program 1 times [2021-03-26 10:35:00,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:00,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589058830] [2021-03-26 10:35:00,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:00,763 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-26 10:35:00,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 10:35:00,788 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-03-26 10:35:00,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 10:35:00,821 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-03-26 10:35:00,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 10:35:00,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:00,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 10:35:00,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:00,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:35:00,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:00,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:35:00,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:00,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589058830] [2021-03-26 10:35:00,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:00,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:35:00,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94816735] [2021-03-26 10:35:00,898 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 10:35:00,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:00,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 10:35:00,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-26 10:35:00,899 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 183 [2021-03-26 10:35:00,900 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 35 transitions, 318 flow. Second operand has 7 states, 7 states have (on average 121.14285714285714) internal successors, (848), 7 states have internal predecessors, (848), 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) [2021-03-26 10:35:00,900 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:00,900 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 183 [2021-03-26 10:35:00,900 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:01,026 INFO L129 PetriNetUnfolder]: 28/90 cut-off events. [2021-03-26 10:35:01,027 INFO L130 PetriNetUnfolder]: For 755/819 co-relation queries the response was YES. [2021-03-26 10:35:01,027 INFO L84 FinitePrefix]: Finished finitePrefix Result has 465 conditions, 90 events. 28/90 cut-off events. For 755/819 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 320 event pairs, 0 based on Foata normal form. 22/105 useless extension candidates. Maximal degree in co-relation 435. Up to 36 conditions per place. [2021-03-26 10:35:01,028 INFO L132 encePairwiseOnDemand]: 174/183 looper letters, 7 selfloop transitions, 11 changer transitions 6/39 dead transitions. [2021-03-26 10:35:01,028 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 39 transitions, 412 flow [2021-03-26 10:35:01,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:35:01,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:35:01,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 737 transitions. [2021-03-26 10:35:01,030 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6712204007285975 [2021-03-26 10:35:01,030 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 737 transitions. [2021-03-26 10:35:01,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 737 transitions. [2021-03-26 10:35:01,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:01,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 737 transitions. [2021-03-26 10:35:01,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 122.83333333333333) internal successors, (737), 6 states have internal predecessors, (737), 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) [2021-03-26 10:35:01,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 183.0) internal successors, (1281), 7 states have internal predecessors, (1281), 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) [2021-03-26 10:35:01,033 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 183.0) internal successors, (1281), 7 states have internal predecessors, (1281), 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) [2021-03-26 10:35:01,033 INFO L185 Difference]: Start difference. First operand has 57 places, 35 transitions, 318 flow. Second operand 6 states and 737 transitions. [2021-03-26 10:35:01,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 39 transitions, 412 flow [2021-03-26 10:35:01,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 39 transitions, 362 flow, removed 13 selfloop flow, removed 9 redundant places. [2021-03-26 10:35:01,035 INFO L241 Difference]: Finished difference. Result has 55 places, 32 transitions, 299 flow [2021-03-26 10:35:01,036 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=299, PETRI_PLACES=55, PETRI_TRANSITIONS=32} [2021-03-26 10:35:01,036 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 9 predicate places. [2021-03-26 10:35:01,036 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:01,036 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 32 transitions, 299 flow [2021-03-26 10:35:01,036 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 32 transitions, 299 flow [2021-03-26 10:35:01,037 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 32 transitions, 299 flow [2021-03-26 10:35:01,043 INFO L129 PetriNetUnfolder]: 15/51 cut-off events. [2021-03-26 10:35:01,043 INFO L130 PetriNetUnfolder]: For 209/212 co-relation queries the response was YES. [2021-03-26 10:35:01,043 INFO L84 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 51 events. 15/51 cut-off events. For 209/212 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 129 event pairs, 1 based on Foata normal form. 1/51 useless extension candidates. Maximal degree in co-relation 225. Up to 14 conditions per place. [2021-03-26 10:35:01,043 INFO L142 LiptonReduction]: Number of co-enabled transitions 62 [2021-03-26 10:35:01,266 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-03-26 10:35:01,705 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 92 [2021-03-26 10:35:01,845 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-03-26 10:35:01,847 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-26 10:35:01,847 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:35:01,848 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 812 [2021-03-26 10:35:01,848 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 32 transitions, 302 flow [2021-03-26 10:35:01,848 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 121.14285714285714) internal successors, (848), 7 states have internal predecessors, (848), 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) [2021-03-26 10:35:01,848 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:01,849 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:01,849 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-26 10:35:01,849 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:01,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:01,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1596121586, now seen corresponding path program 1 times [2021-03-26 10:35:01,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:01,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152675421] [2021-03-26 10:35:01,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:01,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 10:35:01,876 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 10:35:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 10:35:01,901 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 10:35:01,940 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 10:35:01,940 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 10:35:01,940 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-26 10:35:02,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 10:35:02 BasicIcfg [2021-03-26 10:35:02,029 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 10:35:02,029 INFO L168 Benchmark]: Toolchain (without parser) took 31311.39 ms. Allocated memory was 255.9 MB in the beginning and 786.4 MB in the end (delta: 530.6 MB). Free memory was 234.6 MB in the beginning and 661.9 MB in the end (delta: -427.4 MB). Peak memory consumption was 101.7 MB. Max. memory is 16.0 GB. [2021-03-26 10:35:02,029 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:35:02,033 INFO L168 Benchmark]: CACSL2BoogieTranslator took 495.80 ms. Allocated memory was 255.9 MB in the beginning and 371.2 MB in the end (delta: 115.3 MB). Free memory was 234.0 MB in the beginning and 331.1 MB in the end (delta: -97.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-26 10:35:02,033 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.97 ms. Allocated memory is still 371.2 MB. Free memory was 331.1 MB in the beginning and 328.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-26 10:35:02,033 INFO L168 Benchmark]: Boogie Preprocessor took 30.10 ms. Allocated memory is still 371.2 MB. Free memory was 328.3 MB in the beginning and 325.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:35:02,033 INFO L168 Benchmark]: RCFGBuilder took 1886.95 ms. Allocated memory is still 371.2 MB. Free memory was 325.5 MB in the beginning and 235.3 MB in the end (delta: 90.3 MB). Peak memory consumption was 94.8 MB. Max. memory is 16.0 GB. [2021-03-26 10:35:02,034 INFO L168 Benchmark]: TraceAbstraction took 28820.59 ms. Allocated memory was 371.2 MB in the beginning and 786.4 MB in the end (delta: 415.2 MB). Free memory was 234.2 MB in the beginning and 661.9 MB in the end (delta: -427.7 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:35:02,035 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 495.80 ms. Allocated memory was 255.9 MB in the beginning and 371.2 MB in the end (delta: 115.3 MB). Free memory was 234.0 MB in the beginning and 331.1 MB in the end (delta: -97.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 60.97 ms. Allocated memory is still 371.2 MB. Free memory was 331.1 MB in the beginning and 328.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.10 ms. Allocated memory is still 371.2 MB. Free memory was 328.3 MB in the beginning and 325.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1886.95 ms. Allocated memory is still 371.2 MB. Free memory was 325.5 MB in the beginning and 235.3 MB in the end (delta: 90.3 MB). Peak memory consumption was 94.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 28820.59 ms. Allocated memory was 371.2 MB in the beginning and 786.4 MB in the end (delta: 415.2 MB). Free memory was 234.2 MB in the beginning and 661.9 MB in the end (delta: -427.7 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7526.0ms, 100 PlacesBefore, 46 PlacesAfterwards, 92 TransitionsBefore, 37 TransitionsAfterwards, 1602 CoEnabledTransitionPairs, 6 FixpointIterations, 24 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 66 TotalNumberOfCompositions, 2709 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1459, positive: 1380, positive conditional: 1380, positive unconditional: 0, negative: 79, negative conditional: 79, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1459, positive: 1380, positive conditional: 0, positive unconditional: 1380, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1459, positive: 1380, positive conditional: 0, positive unconditional: 1380, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1148, positive: 1112, positive conditional: 0, positive unconditional: 1112, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1148, positive: 1104, positive conditional: 0, positive unconditional: 1104, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 44, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 599, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 573, negative conditional: 0, negative unconditional: 573, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1459, positive: 268, positive conditional: 0, positive unconditional: 268, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 1148, unknown conditional: 0, unknown unconditional: 1148] , Statistics on independence cache: Total cache size (in pairs): 1148, Positive cache size: 1112, Positive conditional cache size: 0, Positive unconditional cache size: 1112, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3338.6ms, 43 PlacesBefore, 31 PlacesAfterwards, 32 TransitionsBefore, 22 TransitionsAfterwards, 234 CoEnabledTransitionPairs, 4 FixpointIterations, 9 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 1040 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 281, positive: 202, positive conditional: 202, positive unconditional: 0, negative: 79, negative conditional: 79, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 281, positive: 202, positive conditional: 28, positive unconditional: 174, negative: 79, negative conditional: 21, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 281, positive: 202, positive conditional: 28, positive unconditional: 174, negative: 79, negative conditional: 21, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 79, positive: 61, positive conditional: 8, positive unconditional: 53, negative: 18, negative conditional: 6, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 79, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 18, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 18, negative conditional: 6, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 370, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 370, negative conditional: 157, negative unconditional: 213, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 281, positive: 141, positive conditional: 20, positive unconditional: 121, negative: 61, negative conditional: 15, negative unconditional: 46, unknown: 79, unknown conditional: 14, unknown unconditional: 65] , Statistics on independence cache: Total cache size (in pairs): 1227, Positive cache size: 1173, Positive conditional cache size: 8, Positive unconditional cache size: 1165, Negative cache size: 54, Negative conditional cache size: 6, Negative unconditional cache size: 48, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1110.5ms, 32 PlacesBefore, 30 PlacesAfterwards, 21 TransitionsBefore, 20 TransitionsAfterwards, 188 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 438 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 94, positive: 58, positive conditional: 58, positive unconditional: 0, negative: 36, negative conditional: 36, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 94, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 94, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 15, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 240, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 240, negative conditional: 0, negative unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 94, positive: 52, positive conditional: 0, positive unconditional: 52, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 15, unknown conditional: 0, unknown unconditional: 15] , Statistics on independence cache: Total cache size (in pairs): 1242, Positive cache size: 1179, Positive conditional cache size: 8, Positive unconditional cache size: 1171, Negative cache size: 63, Negative conditional cache size: 6, Negative unconditional cache size: 57, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.8ms, 31 PlacesBefore, 31 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 214 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 196 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 53, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 53, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 53, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 25, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 53, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 8, unknown conditional: 0, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 1250, Positive cache size: 1186, Positive conditional cache size: 8, Positive unconditional cache size: 1178, Negative cache size: 64, Negative conditional cache size: 6, Negative unconditional cache size: 58, Eliminated conditions: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 55.4ms, 33 PlacesBefore, 33 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 230 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 123 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 43, positive: 34, positive conditional: 34, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 43, positive: 34, positive conditional: 4, positive unconditional: 30, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 43, positive: 34, positive conditional: 4, positive unconditional: 30, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 2, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 39, positive: 35, positive conditional: 35, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 43, positive: 29, positive conditional: 2, positive unconditional: 27, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 6, unknown conditional: 2, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 1256, Positive cache size: 1191, Positive conditional cache size: 10, Positive unconditional cache size: 1181, Negative cache size: 65, Negative conditional cache size: 6, Negative unconditional cache size: 59, Eliminated conditions: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.8ms, 35 PlacesBefore, 35 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 230 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 149 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 38, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 38, positive: 27, positive conditional: 2, positive unconditional: 25, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 38, positive: 27, positive conditional: 2, positive unconditional: 25, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 19, positive: 14, positive conditional: 14, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 38, positive: 26, positive conditional: 1, positive unconditional: 25, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1258, Positive cache size: 1192, Positive conditional cache size: 11, Positive unconditional cache size: 1181, Negative cache size: 66, Negative conditional cache size: 7, Negative unconditional cache size: 59, Eliminated conditions: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.9ms, 38 PlacesBefore, 38 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 210 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 129 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 31, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 32, positive: 21, positive conditional: 2, positive unconditional: 19, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 32, positive: 21, positive conditional: 2, positive unconditional: 19, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 32, positive: 20, positive conditional: 2, positive unconditional: 18, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 1259, Positive cache size: 1193, Positive conditional cache size: 11, Positive unconditional cache size: 1182, Negative cache size: 66, Negative conditional cache size: 7, Negative unconditional cache size: 59, Eliminated conditions: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 141.5ms, 38 PlacesBefore, 38 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 236 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 95 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 33, positive: 26, positive conditional: 26, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 33, positive: 26, positive conditional: 6, positive unconditional: 20, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 33, positive: 26, positive conditional: 6, positive unconditional: 20, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 4, positive conditional: 3, positive unconditional: 1, 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: 6, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 121, positive: 67, positive conditional: 67, positive unconditional: 0, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 33, positive: 22, positive conditional: 3, positive unconditional: 19, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 6, unknown conditional: 3, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 1265, Positive cache size: 1197, Positive conditional cache size: 14, Positive unconditional cache size: 1183, Negative cache size: 68, Negative conditional cache size: 7, Negative unconditional cache size: 61, Eliminated conditions: 11 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 168.5ms, 42 PlacesBefore, 42 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 256 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 186 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 65, positive: 52, positive conditional: 52, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 67, positive: 52, positive conditional: 16, positive unconditional: 36, negative: 15, negative conditional: 4, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 67, positive: 52, positive conditional: 16, positive unconditional: 36, negative: 15, negative conditional: 4, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 143, positive: 58, positive conditional: 58, positive unconditional: 0, negative: 85, negative conditional: 85, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 67, positive: 48, positive conditional: 12, positive unconditional: 36, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1273, Positive cache size: 1201, Positive conditional cache size: 18, Positive unconditional cache size: 1183, Negative cache size: 72, Negative conditional cache size: 11, Negative unconditional cache size: 61, Eliminated conditions: 27 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.5ms, 46 PlacesBefore, 46 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 268 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 130 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 39, positive: 31, positive conditional: 31, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 40, positive: 31, positive conditional: 7, positive unconditional: 24, negative: 9, negative conditional: 1, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 40, positive: 31, positive conditional: 7, positive unconditional: 24, negative: 9, negative conditional: 1, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 40, positive: 30, positive conditional: 6, positive unconditional: 24, negative: 9, negative conditional: 1, negative unconditional: 8, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1274, Positive cache size: 1202, Positive conditional cache size: 19, Positive unconditional cache size: 1183, Negative cache size: 72, Negative conditional cache size: 11, Negative unconditional cache size: 61, Eliminated conditions: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 68.9ms, 52 PlacesBefore, 52 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 328 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 183 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 76, positive: 67, positive conditional: 67, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 76, positive: 67, positive conditional: 35, positive unconditional: 32, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 76, positive: 67, positive conditional: 35, positive unconditional: 32, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, positive: 9, positive conditional: 5, positive unconditional: 4, 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: 9, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 76, positive: 58, positive conditional: 30, positive unconditional: 28, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 9, unknown conditional: 5, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 1283, Positive cache size: 1211, Positive conditional cache size: 24, Positive unconditional cache size: 1187, Negative cache size: 72, Negative conditional cache size: 11, Negative unconditional cache size: 61, Eliminated conditions: 24 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 58.6ms, 56 PlacesBefore, 56 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 342 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 236 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 116, positive: 104, positive conditional: 104, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 116, positive: 104, positive conditional: 48, positive unconditional: 56, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 116, positive: 104, positive conditional: 48, positive unconditional: 56, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 3, 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: 3, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 116, positive: 101, positive conditional: 45, positive unconditional: 56, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1286, Positive cache size: 1214, Positive conditional cache size: 27, Positive unconditional cache size: 1187, Negative cache size: 72, Negative conditional cache size: 11, Negative unconditional cache size: 61, Eliminated conditions: 30 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 47.2ms, 59 PlacesBefore, 59 PlacesAfterwards, 52 TransitionsBefore, 52 TransitionsAfterwards, 346 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 277 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 138, positive: 125, positive conditional: 125, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 138, positive: 125, positive conditional: 55, positive unconditional: 70, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 138, positive: 125, positive conditional: 55, positive unconditional: 70, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 138, positive: 125, positive conditional: 55, positive unconditional: 70, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1286, Positive cache size: 1214, Positive conditional cache size: 27, Positive unconditional cache size: 1187, Negative cache size: 72, Negative conditional cache size: 11, Negative unconditional cache size: 61, Eliminated conditions: 47 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 63.4ms, 63 PlacesBefore, 63 PlacesAfterwards, 59 TransitionsBefore, 59 TransitionsAfterwards, 350 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 433 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 222, positive: 205, positive conditional: 205, positive unconditional: 0, negative: 17, negative conditional: 17, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 222, positive: 205, positive conditional: 100, positive unconditional: 105, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 222, positive: 205, positive conditional: 100, positive unconditional: 105, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 222, positive: 204, positive conditional: 99, positive unconditional: 105, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1287, Positive cache size: 1215, Positive conditional cache size: 28, Positive unconditional cache size: 1187, Negative cache size: 72, Negative conditional cache size: 11, Negative unconditional cache size: 61, Eliminated conditions: 52 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 73.0ms, 69 PlacesBefore, 69 PlacesAfterwards, 66 TransitionsBefore, 66 TransitionsAfterwards, 384 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 609 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 346, positive: 319, positive conditional: 319, positive unconditional: 0, negative: 27, negative conditional: 27, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 346, positive: 319, positive conditional: 155, positive unconditional: 164, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 346, positive: 319, positive conditional: 155, positive unconditional: 164, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 346, positive: 318, positive conditional: 154, positive unconditional: 164, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1288, Positive cache size: 1216, Positive conditional cache size: 29, Positive unconditional cache size: 1187, Negative cache size: 72, Negative conditional cache size: 11, Negative unconditional cache size: 61, Eliminated conditions: 55 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 196.8ms, 73 PlacesBefore, 71 PlacesAfterwards, 66 TransitionsBefore, 66 TransitionsAfterwards, 360 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 1001 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 590, positive: 550, positive conditional: 550, positive unconditional: 0, negative: 40, negative conditional: 40, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 590, positive: 550, positive conditional: 249, positive unconditional: 301, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 590, positive: 550, positive conditional: 249, positive unconditional: 301, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 590, positive: 550, positive conditional: 249, positive unconditional: 301, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1288, Positive cache size: 1216, Positive conditional cache size: 29, Positive unconditional cache size: 1187, Negative cache size: 72, Negative conditional cache size: 11, Negative unconditional cache size: 61, Eliminated conditions: 99 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 74.0ms, 72 PlacesBefore, 72 PlacesAfterwards, 60 TransitionsBefore, 60 TransitionsAfterwards, 436 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 1288, Positive cache size: 1216, Positive conditional cache size: 29, Positive unconditional cache size: 1187, Negative cache size: 72, Negative conditional cache size: 11, Negative unconditional cache size: 61, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1663.7ms, 80 PlacesBefore, 80 PlacesAfterwards, 66 TransitionsBefore, 66 TransitionsAfterwards, 460 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 3, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 1291, Positive cache size: 1219, Positive conditional cache size: 29, Positive unconditional cache size: 1190, Negative cache size: 72, Negative conditional cache size: 11, Negative unconditional cache size: 61, Eliminated conditions: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 85.5ms, 80 PlacesBefore, 80 PlacesAfterwards, 65 TransitionsBefore, 65 TransitionsAfterwards, 460 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 1291, Positive cache size: 1219, Positive conditional cache size: 29, Positive unconditional cache size: 1190, Negative cache size: 72, Negative conditional cache size: 11, Negative unconditional cache size: 61, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 72.6ms, 79 PlacesBefore, 79 PlacesAfterwards, 59 TransitionsBefore, 59 TransitionsAfterwards, 402 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 1291, Positive cache size: 1219, Positive conditional cache size: 29, Positive unconditional cache size: 1190, Negative cache size: 72, Negative conditional cache size: 11, Negative unconditional cache size: 61, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 78.4ms, 81 PlacesBefore, 81 PlacesAfterwards, 57 TransitionsBefore, 56 TransitionsAfterwards, 424 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 38 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 38, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 38, positive: 38, positive conditional: 28, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 38, positive: 38, positive conditional: 28, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 7, positive unconditional: 4, 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: 11, positive: 11, positive conditional: 0, positive unconditional: 11, 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: 38, positive: 27, positive conditional: 21, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 11, unknown conditional: 7, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 1302, Positive cache size: 1230, Positive conditional cache size: 36, Positive unconditional cache size: 1194, Negative cache size: 72, Negative conditional cache size: 11, Negative unconditional cache size: 61, Eliminated conditions: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 68.7ms, 75 PlacesBefore, 73 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 260 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 1302, Positive cache size: 1230, Positive conditional cache size: 36, Positive unconditional cache size: 1194, Negative cache size: 72, Negative conditional cache size: 11, Negative unconditional cache size: 61, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.4ms, 72 PlacesBefore, 72 PlacesAfterwards, 55 TransitionsBefore, 54 TransitionsAfterwards, 280 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 18 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 18, positive: 18, positive conditional: 14, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18, positive: 18, positive conditional: 14, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 18, positive: 16, positive conditional: 12, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1304, Positive cache size: 1232, Positive conditional cache size: 38, Positive unconditional cache size: 1194, Negative cache size: 72, Negative conditional cache size: 11, Negative unconditional cache size: 61, Eliminated conditions: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.8ms, 73 PlacesBefore, 70 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 208 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 1304, Positive cache size: 1232, Positive conditional cache size: 38, Positive unconditional cache size: 1194, Negative cache size: 72, Negative conditional cache size: 11, Negative unconditional cache size: 61, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 176.0ms, 69 PlacesBefore, 63 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 184 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 6 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6, positive: 6, positive conditional: 5, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 5, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 1, positive unconditional: 1, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 6, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 1, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 1306, Positive cache size: 1234, Positive conditional cache size: 39, Positive unconditional cache size: 1195, Negative cache size: 72, Negative conditional cache size: 11, Negative unconditional cache size: 61, Eliminated conditions: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4678.3ms, 62 PlacesBefore, 57 PlacesAfterwards, 38 TransitionsBefore, 35 TransitionsAfterwards, 126 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 29 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 29, positive: 29, positive conditional: 29, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 29, positive: 29, positive conditional: 26, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 29, positive: 29, positive conditional: 26, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 29, positive: 27, positive conditional: 24, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1308, Positive cache size: 1236, Positive conditional cache size: 41, Positive unconditional cache size: 1195, Negative cache size: 72, Negative conditional cache size: 11, Negative unconditional cache size: 61, Eliminated conditions: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 811.0ms, 55 PlacesBefore, 54 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 62 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 1309, Positive cache size: 1237, Positive conditional cache size: 41, Positive unconditional cache size: 1196, Negative cache size: 72, Negative conditional cache size: 11, Negative unconditional cache size: 61, Eliminated conditions: 2 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p2_EAX = 0; [L712] 0 _Bool main$tmp_guard0; [L713] 0 _Bool main$tmp_guard1; [L715] 0 int x = 0; [L717] 0 int y = 0; [L718] 0 _Bool y$flush_delayed; [L719] 0 int y$mem_tmp; [L720] 0 _Bool y$r_buff0_thd0; [L721] 0 _Bool y$r_buff0_thd1; [L722] 0 _Bool y$r_buff0_thd2; [L723] 0 _Bool y$r_buff0_thd3; [L724] 0 _Bool y$r_buff1_thd0; [L725] 0 _Bool y$r_buff1_thd1; [L726] 0 _Bool y$r_buff1_thd2; [L727] 0 _Bool y$r_buff1_thd3; [L728] 0 _Bool y$read_delayed; [L729] 0 int *y$read_delayed_var; [L730] 0 int y$w_buff0; [L731] 0 _Bool y$w_buff0_used; [L732] 0 int y$w_buff1; [L733] 0 _Bool y$w_buff1_used; [L734] 0 _Bool weak$$choice0; [L735] 0 _Bool weak$$choice2; [L813] 0 pthread_t t2177; [L814] FCALL, FORK 0 pthread_create(&t2177, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L739] 1 y$w_buff1 = y$w_buff0 [L740] 1 y$w_buff0 = 2 [L741] 1 y$w_buff1_used = y$w_buff0_used [L742] 1 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 1 !(!expression) [L744] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L745] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L746] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L747] 1 y$r_buff1_thd3 = y$r_buff0_thd3 [L748] 1 y$r_buff0_thd1 = (_Bool)1 [L751] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L815] 0 pthread_t t2178; [L816] FCALL, FORK 0 pthread_create(&t2178, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L768] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L771] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L771] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L772] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L772] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L773] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L773] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L774] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L774] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L775] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L775] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L817] 0 pthread_t t2179; [L818] FCALL, FORK 0 pthread_create(&t2179, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L785] 3 __unbuffered_p2_EAX = x [L788] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L754] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L754] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L755] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L755] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L756] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L756] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L757] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L757] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L758] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L758] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L791] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L791] EXPR 3 y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y [L791] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L791] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L792] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L792] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L793] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L793] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L794] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L794] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L795] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L795] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L761] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L763] 1 return 0; [L778] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L780] 2 return 0; [L798] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L800] 3 return 0; [L820] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L824] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L824] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L825] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L825] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L826] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L826] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L827] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L827] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L828] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L828] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L831] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L832] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L833] 0 y$flush_delayed = weak$$choice2 [L834] 0 y$mem_tmp = y [L835] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L835] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L836] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L836] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L837] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L837] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L838] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L838] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L839] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L839] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L840] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L840] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L841] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L841] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L842] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 2) [L843] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L843] 0 y = y$flush_delayed ? y$mem_tmp : y [L844] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=54, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 94 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 28622.7ms, OverallIterations: 27, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 3831.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7612.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 132 SDtfs, 35 SDslu, 30 SDs, 0 SdLazy, 813 SolverSat, 198 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1239.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1802.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=751occurred in iteration=17, InterpolantAutomatonStates: 121, 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: 77.0ms SsaConstructionTime, 668.1ms SatisfiabilityAnalysisTime, 2794.9ms InterpolantComputationTime, 376 NumberOfCodeBlocks, 376 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 334 ConstructedInterpolants, 0 QuantifiedInterpolants, 4447 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 26 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 RESULT: Ultimate proved your program to be incorrect! Received shutdown request...