/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/safe019_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 10:36:22,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 10:36:22,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 10:36:22,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 10:36:22,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 10:36:22,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 10:36:22,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 10:36:22,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 10:36:22,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 10:36:22,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 10:36:22,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 10:36:22,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 10:36:22,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 10:36:22,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 10:36:22,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 10:36:22,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 10:36:22,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 10:36:22,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 10:36:22,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 10:36:22,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 10:36:22,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 10:36:22,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 10:36:22,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 10:36:22,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 10:36:22,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 10:36:22,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 10:36:22,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 10:36:22,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 10:36:22,189 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 10:36:22,221 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 10:36:22,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 10:36:22,224 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 10:36:22,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 10:36:22,224 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 10:36:22,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 10:36:22,225 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 10:36:22,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 10:36:22,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 10:36:22,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 10:36:22,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 10:36:22,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 10:36:22,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 10:36:22,226 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 10:36:22,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 10:36:22,226 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 10:36:22,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 10:36:22,227 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 10:36:22,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 10:36:22,227 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 10:36:22,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 10:36:22,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:36:22,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 10:36:22,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 10:36:22,228 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 10:36:22,228 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 10:36:22,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 10:36:22,228 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 10:36:22,228 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 10:36:22,228 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 10:36:22,228 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 10:36:22,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 10:36:22,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 10:36:22,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 10:36:22,565 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 10:36:22,565 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 10:36:22,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2021-03-26 10:36:22,639 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65cbb7114/71e33429963e474590682069b5083ccf/FLAG64622d9b6 [2021-03-26 10:36:23,167 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 10:36:23,167 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2021-03-26 10:36:23,191 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65cbb7114/71e33429963e474590682069b5083ccf/FLAG64622d9b6 [2021-03-26 10:36:23,640 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65cbb7114/71e33429963e474590682069b5083ccf [2021-03-26 10:36:23,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 10:36:23,643 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 10:36:23,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 10:36:23,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 10:36:23,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 10:36:23,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:36:23" (1/1) ... [2021-03-26 10:36:23,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10d59082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:36:23, skipping insertion in model container [2021-03-26 10:36:23,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:36:23" (1/1) ... [2021-03-26 10:36:23,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 10:36:23,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 10:36:23,879 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/safe019_tso.opt.i[949,962] [2021-03-26 10:36:24,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:36:24,081 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 10:36:24,091 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/safe019_tso.opt.i[949,962] [2021-03-26 10:36:24,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:36:24,199 INFO L208 MainTranslator]: Completed translation [2021-03-26 10:36:24,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:36:24 WrapperNode [2021-03-26 10:36:24,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 10:36:24,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 10:36:24,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 10:36:24,202 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 10:36:24,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:36:24" (1/1) ... [2021-03-26 10:36:24,236 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:36:24" (1/1) ... [2021-03-26 10:36:24,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 10:36:24,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 10:36:24,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 10:36:24,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 10:36:24,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:36:24" (1/1) ... [2021-03-26 10:36:24,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:36:24" (1/1) ... [2021-03-26 10:36:24,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:36:24" (1/1) ... [2021-03-26 10:36:24,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:36:24" (1/1) ... [2021-03-26 10:36:24,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:36:24" (1/1) ... [2021-03-26 10:36:24,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:36:24" (1/1) ... [2021-03-26 10:36:24,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:36:24" (1/1) ... [2021-03-26 10:36:24,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 10:36:24,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 10:36:24,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 10:36:24,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 10:36:24,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:36:24" (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 10:36:24,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 10:36:24,369 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 10:36:24,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 10:36:24,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 10:36:24,370 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 10:36:24,370 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 10:36:24,371 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 10:36:24,371 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 10:36:24,371 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 10:36:24,371 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 10:36:24,371 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-26 10:36:24,371 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-26 10:36:24,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 10:36:24,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 10:36:24,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 10:36:24,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 10:36:24,373 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 10:36:24,768 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 10:36:24,769 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 10:36:24,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:36:24 BoogieIcfgContainer [2021-03-26 10:36:24,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 10:36:24,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 10:36:24,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 10:36:24,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 10:36:24,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 10:36:23" (1/3) ... [2021-03-26 10:36:24,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3000c3a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:36:24, skipping insertion in model container [2021-03-26 10:36:24,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:36:24" (2/3) ... [2021-03-26 10:36:24,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3000c3a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:36:24, skipping insertion in model container [2021-03-26 10:36:24,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:36:24" (3/3) ... [2021-03-26 10:36:24,777 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.opt.i [2021-03-26 10:36:24,783 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 10:36:24,787 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 10:36:24,787 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 10:36:24,819 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,819 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,820 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,820 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,820 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,820 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,820 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,820 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,821 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,821 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,821 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,821 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,822 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,822 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,822 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,822 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,822 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,822 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,822 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,826 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,826 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,827 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,827 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,828 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,828 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,828 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,828 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,828 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,828 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,829 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,829 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,829 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,830 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,830 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,830 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,830 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,831 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,831 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,831 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,831 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,831 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,831 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,831 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,831 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,832 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,832 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,832 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,833 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,833 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,834 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,834 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,838 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,838 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,838 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,838 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,841 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,841 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,841 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,842 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,843 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,843 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,843 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,843 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:24,845 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:36:24,861 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-26 10:36:24,885 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:36:24,886 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:36:24,886 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:36:24,886 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:36:24,886 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:36:24,886 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:36:24,887 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:36:24,887 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:36:24,900 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2021-03-26 10:36:24,949 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-03-26 10:36:24,949 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:36:24,952 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-03-26 10:36:24,952 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 86 transitions, 192 flow [2021-03-26 10:36:24,958 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 68 transitions, 148 flow [2021-03-26 10:36:24,960 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:36:24,970 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 68 transitions, 148 flow [2021-03-26 10:36:24,973 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 68 transitions, 148 flow [2021-03-26 10:36:24,976 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 68 transitions, 148 flow [2021-03-26 10:36:25,001 INFO L129 PetriNetUnfolder]: 1/68 cut-off events. [2021-03-26 10:36:25,001 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:36:25,002 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 68 events. 1/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2021-03-26 10:36:25,004 INFO L142 LiptonReduction]: Number of co-enabled transitions 1250 [2021-03-26 10:36:26,581 INFO L154 LiptonReduction]: Checked pairs total: 1269 [2021-03-26 10:36:26,582 INFO L156 LiptonReduction]: Total number of compositions: 43 [2021-03-26 10:36:26,583 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1624 [2021-03-26 10:36:26,592 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-26 10:36:26,592 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:36:26,592 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:36:26,593 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:36:26,593 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:36:26,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:36:26,597 INFO L82 PathProgramCache]: Analyzing trace with hash 2002329809, now seen corresponding path program 1 times [2021-03-26 10:36:26,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:36:26,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529189196] [2021-03-26 10:36:26,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:36:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:36:26,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:26,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:36:26,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:26,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:26,796 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 10:36:26,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529189196] [2021-03-26 10:36:26,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:36:26,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:36:26,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617514789] [2021-03-26 10:36:26,805 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:36:26,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:36:26,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:36:26,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:36:26,817 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 129 [2021-03-26 10:36:26,819 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 10:36:26,819 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:36:26,819 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 129 [2021-03-26 10:36:26,820 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:36:26,843 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-03-26 10:36:26,843 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:36:26,844 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 25 events. 0/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs, 0 based on Foata normal form. 1/26 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 10:36:26,845 INFO L132 encePairwiseOnDemand]: 126/129 looper letters, 1 selfloop transitions, 2 changer transitions 0/25 dead transitions. [2021-03-26 10:36:26,845 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 25 transitions, 68 flow [2021-03-26 10:36:26,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:36:26,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:36:26,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 355 transitions. [2021-03-26 10:36:26,861 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.917312661498708 [2021-03-26 10:36:26,861 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 355 transitions. [2021-03-26 10:36:26,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 355 transitions. [2021-03-26 10:36:26,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:36:26,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 355 transitions. [2021-03-26 10:36:26,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 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 10:36:26,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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 10:36:26,879 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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 10:36:26,881 INFO L185 Difference]: Start difference. First operand has 38 places, 25 transitions, 62 flow. Second operand 3 states and 355 transitions. [2021-03-26 10:36:26,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 25 transitions, 68 flow [2021-03-26 10:36:26,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 25 transitions, 64 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-26 10:36:26,884 INFO L241 Difference]: Finished difference. Result has 37 places, 25 transitions, 66 flow [2021-03-26 10:36:26,886 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=37, PETRI_TRANSITIONS=25} [2021-03-26 10:36:26,887 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2021-03-26 10:36:26,887 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:36:26,887 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 25 transitions, 66 flow [2021-03-26 10:36:26,887 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 25 transitions, 66 flow [2021-03-26 10:36:26,889 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 25 transitions, 66 flow [2021-03-26 10:36:26,894 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-03-26 10:36:26,895 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-26 10:36:26,895 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 25 events. 0/25 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 23 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 10:36:26,896 INFO L142 LiptonReduction]: Number of co-enabled transitions 196 [2021-03-26 10:36:27,416 INFO L154 LiptonReduction]: Checked pairs total: 502 [2021-03-26 10:36:27,417 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 10:36:27,417 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 530 [2021-03-26 10:36:27,418 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 21 transitions, 58 flow [2021-03-26 10:36:27,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 10:36:27,419 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:36:27,419 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:36:27,419 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 10:36:27,419 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:36:27,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:36:27,420 INFO L82 PathProgramCache]: Analyzing trace with hash 233500185, now seen corresponding path program 1 times [2021-03-26 10:36:27,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:36:27,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358390486] [2021-03-26 10:36:27,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:36:27,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:36:27,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:27,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:36:27,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:27,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:27,533 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:36:27,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:36:27,545 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 10:36:27,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358390486] [2021-03-26 10:36:27,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:36:27,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:36:27,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231588623] [2021-03-26 10:36:27,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:36:27,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:36:27,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:36:27,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:36:27,550 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 133 [2021-03-26 10:36:27,550 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 21 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 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 10:36:27,551 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:36:27,551 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 133 [2021-03-26 10:36:27,551 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:36:27,587 INFO L129 PetriNetUnfolder]: 28/99 cut-off events. [2021-03-26 10:36:27,587 INFO L130 PetriNetUnfolder]: For 22/34 co-relation queries the response was YES. [2021-03-26 10:36:27,588 INFO L84 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 99 events. 28/99 cut-off events. For 22/34 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 393 event pairs, 7 based on Foata normal form. 7/99 useless extension candidates. Maximal degree in co-relation 186. Up to 46 conditions per place. [2021-03-26 10:36:27,588 INFO L132 encePairwiseOnDemand]: 125/133 looper letters, 7 selfloop transitions, 7 changer transitions 0/27 dead transitions. [2021-03-26 10:36:27,588 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 27 transitions, 104 flow [2021-03-26 10:36:27,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:36:27,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:36:27,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 432 transitions. [2021-03-26 10:36:27,591 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8120300751879699 [2021-03-26 10:36:27,591 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 432 transitions. [2021-03-26 10:36:27,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 432 transitions. [2021-03-26 10:36:27,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:36:27,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 432 transitions. [2021-03-26 10:36:27,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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 10:36:27,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 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 10:36:27,595 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 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 10:36:27,595 INFO L185 Difference]: Start difference. First operand has 33 places, 21 transitions, 58 flow. Second operand 4 states and 432 transitions. [2021-03-26 10:36:27,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 27 transitions, 104 flow [2021-03-26 10:36:27,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 27 transitions, 96 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:36:27,596 INFO L241 Difference]: Finished difference. Result has 36 places, 24 transitions, 93 flow [2021-03-26 10:36:27,597 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=93, PETRI_PLACES=36, PETRI_TRANSITIONS=24} [2021-03-26 10:36:27,597 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places. [2021-03-26 10:36:27,597 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:36:27,597 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 24 transitions, 93 flow [2021-03-26 10:36:27,598 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 24 transitions, 93 flow [2021-03-26 10:36:27,598 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 24 transitions, 93 flow [2021-03-26 10:36:27,607 INFO L129 PetriNetUnfolder]: 21/82 cut-off events. [2021-03-26 10:36:27,607 INFO L130 PetriNetUnfolder]: For 25/26 co-relation queries the response was YES. [2021-03-26 10:36:27,608 INFO L84 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 82 events. 21/82 cut-off events. For 25/26 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 320 event pairs, 12 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 168. Up to 41 conditions per place. [2021-03-26 10:36:27,609 INFO L142 LiptonReduction]: Number of co-enabled transitions 196 [2021-03-26 10:36:27,769 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 10:36:27,984 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 10:36:28,046 INFO L154 LiptonReduction]: Checked pairs total: 144 [2021-03-26 10:36:28,047 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:36:28,047 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 450 [2021-03-26 10:36:28,048 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 89 flow [2021-03-26 10:36:28,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 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 10:36:28,048 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:36:28,049 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:36:28,049 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 10:36:28,049 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:36:28,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:36:28,049 INFO L82 PathProgramCache]: Analyzing trace with hash 872834431, now seen corresponding path program 1 times [2021-03-26 10:36:28,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:36:28,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341834344] [2021-03-26 10:36:28,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:36:28,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:36:28,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:28,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:36:28,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:28,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:28,097 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:36:28,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:36:28,105 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 10:36:28,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341834344] [2021-03-26 10:36:28,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:36:28,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:36:28,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588705826] [2021-03-26 10:36:28,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:36:28,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:36:28,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:36:28,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:36:28,113 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 134 [2021-03-26 10:36:28,113 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 89 flow. Second operand has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 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 10:36:28,113 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:36:28,114 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 134 [2021-03-26 10:36:28,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:36:28,147 INFO L129 PetriNetUnfolder]: 22/83 cut-off events. [2021-03-26 10:36:28,147 INFO L130 PetriNetUnfolder]: For 59/121 co-relation queries the response was YES. [2021-03-26 10:36:28,147 INFO L84 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 83 events. 22/83 cut-off events. For 59/121 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 304 event pairs, 2 based on Foata normal form. 4/81 useless extension candidates. Maximal degree in co-relation 224. Up to 40 conditions per place. [2021-03-26 10:36:28,148 INFO L132 encePairwiseOnDemand]: 128/134 looper letters, 8 selfloop transitions, 7 changer transitions 0/28 dead transitions. [2021-03-26 10:36:28,148 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 28 transitions, 142 flow [2021-03-26 10:36:28,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:36:28,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:36:28,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 432 transitions. [2021-03-26 10:36:28,151 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8059701492537313 [2021-03-26 10:36:28,152 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 432 transitions. [2021-03-26 10:36:28,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 432 transitions. [2021-03-26 10:36:28,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:36:28,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 432 transitions. [2021-03-26 10:36:28,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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 10:36:28,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 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 10:36:28,157 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 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 10:36:28,158 INFO L185 Difference]: Start difference. First operand has 35 places, 23 transitions, 89 flow. Second operand 4 states and 432 transitions. [2021-03-26 10:36:28,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 28 transitions, 142 flow [2021-03-26 10:36:28,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 28 transitions, 129 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 10:36:28,160 INFO L241 Difference]: Finished difference. Result has 37 places, 25 transitions, 108 flow [2021-03-26 10:36:28,160 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=108, PETRI_PLACES=37, PETRI_TRANSITIONS=25} [2021-03-26 10:36:28,160 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2021-03-26 10:36:28,161 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:36:28,161 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 25 transitions, 108 flow [2021-03-26 10:36:28,162 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 25 transitions, 108 flow [2021-03-26 10:36:28,162 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 25 transitions, 108 flow [2021-03-26 10:36:28,169 INFO L129 PetriNetUnfolder]: 15/67 cut-off events. [2021-03-26 10:36:28,170 INFO L130 PetriNetUnfolder]: For 42/46 co-relation queries the response was YES. [2021-03-26 10:36:28,170 INFO L84 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 67 events. 15/67 cut-off events. For 42/46 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 250 event pairs, 6 based on Foata normal form. 2/65 useless extension candidates. Maximal degree in co-relation 163. Up to 32 conditions per place. [2021-03-26 10:36:28,173 INFO L142 LiptonReduction]: Number of co-enabled transitions 212 [2021-03-26 10:36:28,178 INFO L154 LiptonReduction]: Checked pairs total: 112 [2021-03-26 10:36:28,179 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:36:28,179 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-03-26 10:36:28,182 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 25 transitions, 108 flow [2021-03-26 10:36:28,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 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 10:36:28,182 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:36:28,182 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:36:28,183 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 10:36:28,183 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:36:28,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:36:28,184 INFO L82 PathProgramCache]: Analyzing trace with hash 277024184, now seen corresponding path program 1 times [2021-03-26 10:36:28,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:36:28,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190868263] [2021-03-26 10:36:28,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:36:28,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:36:28,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:28,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:28,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:28,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:28,265 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 10:36:28,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190868263] [2021-03-26 10:36:28,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:36:28,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:36:28,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935659680] [2021-03-26 10:36:28,267 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:36:28,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:36:28,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:36:28,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:36:28,269 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 134 [2021-03-26 10:36:28,270 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 25 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 112.75) internal successors, (451), 4 states have internal predecessors, (451), 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 10:36:28,270 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:36:28,270 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 134 [2021-03-26 10:36:28,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:36:28,300 INFO L129 PetriNetUnfolder]: 36/126 cut-off events. [2021-03-26 10:36:28,301 INFO L130 PetriNetUnfolder]: For 227/297 co-relation queries the response was YES. [2021-03-26 10:36:28,303 INFO L84 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 126 events. 36/126 cut-off events. For 227/297 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 610 event pairs, 8 based on Foata normal form. 14/131 useless extension candidates. Maximal degree in co-relation 331. Up to 58 conditions per place. [2021-03-26 10:36:28,303 INFO L132 encePairwiseOnDemand]: 130/134 looper letters, 6 selfloop transitions, 3 changer transitions 2/30 dead transitions. [2021-03-26 10:36:28,303 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 30 transitions, 153 flow [2021-03-26 10:36:28,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:36:28,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:36:28,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 458 transitions. [2021-03-26 10:36:28,305 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8544776119402985 [2021-03-26 10:36:28,305 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 458 transitions. [2021-03-26 10:36:28,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 458 transitions. [2021-03-26 10:36:28,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:36:28,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 458 transitions. [2021-03-26 10:36:28,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.5) internal successors, (458), 4 states have internal predecessors, (458), 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 10:36:28,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 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 10:36:28,309 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 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 10:36:28,309 INFO L185 Difference]: Start difference. First operand has 37 places, 25 transitions, 108 flow. Second operand 4 states and 458 transitions. [2021-03-26 10:36:28,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 30 transitions, 153 flow [2021-03-26 10:36:28,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 30 transitions, 146 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:36:28,313 INFO L241 Difference]: Finished difference. Result has 41 places, 26 transitions, 122 flow [2021-03-26 10:36:28,313 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=122, PETRI_PLACES=41, PETRI_TRANSITIONS=26} [2021-03-26 10:36:28,313 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2021-03-26 10:36:28,313 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:36:28,313 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 26 transitions, 122 flow [2021-03-26 10:36:28,314 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 26 transitions, 122 flow [2021-03-26 10:36:28,315 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 26 transitions, 122 flow [2021-03-26 10:36:28,322 INFO L129 PetriNetUnfolder]: 22/97 cut-off events. [2021-03-26 10:36:28,322 INFO L130 PetriNetUnfolder]: For 109/138 co-relation queries the response was YES. [2021-03-26 10:36:28,322 INFO L84 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 97 events. 22/97 cut-off events. For 109/138 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 445 event pairs, 8 based on Foata normal form. 6/94 useless extension candidates. Maximal degree in co-relation 238. Up to 44 conditions per place. [2021-03-26 10:36:28,324 INFO L142 LiptonReduction]: Number of co-enabled transitions 224 [2021-03-26 10:36:28,327 INFO L154 LiptonReduction]: Checked pairs total: 86 [2021-03-26 10:36:28,327 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:36:28,327 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-26 10:36:28,332 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 26 transitions, 122 flow [2021-03-26 10:36:28,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 112.75) internal successors, (451), 4 states have internal predecessors, (451), 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 10:36:28,333 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:36:28,333 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:36:28,333 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 10:36:28,335 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:36:28,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:36:28,335 INFO L82 PathProgramCache]: Analyzing trace with hash -114735904, now seen corresponding path program 1 times [2021-03-26 10:36:28,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:36:28,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681682337] [2021-03-26 10:36:28,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:36:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:36:28,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:28,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:28,374 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 10:36:28,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:36:28,380 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 10:36:28,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681682337] [2021-03-26 10:36:28,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:36:28,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:36:28,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602764212] [2021-03-26 10:36:28,381 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:36:28,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:36:28,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:36:28,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:36:28,383 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 134 [2021-03-26 10:36:28,383 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 26 transitions, 122 flow. Second operand has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 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 10:36:28,383 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:36:28,383 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 134 [2021-03-26 10:36:28,383 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:36:28,501 INFO L129 PetriNetUnfolder]: 487/871 cut-off events. [2021-03-26 10:36:28,502 INFO L130 PetriNetUnfolder]: For 2258/2576 co-relation queries the response was YES. [2021-03-26 10:36:28,505 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2063 conditions, 871 events. 487/871 cut-off events. For 2258/2576 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 5464 event pairs, 221 based on Foata normal form. 81/823 useless extension candidates. Maximal degree in co-relation 2046. Up to 584 conditions per place. [2021-03-26 10:36:28,510 INFO L132 encePairwiseOnDemand]: 127/134 looper letters, 10 selfloop transitions, 10 changer transitions 0/39 dead transitions. [2021-03-26 10:36:28,511 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 39 transitions, 188 flow [2021-03-26 10:36:28,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:36:28,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:36:28,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 542 transitions. [2021-03-26 10:36:28,513 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.808955223880597 [2021-03-26 10:36:28,513 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 542 transitions. [2021-03-26 10:36:28,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 542 transitions. [2021-03-26 10:36:28,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:36:28,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 542 transitions. [2021-03-26 10:36:28,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.4) internal successors, (542), 5 states have internal predecessors, (542), 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 10:36:28,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 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 10:36:28,517 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 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 10:36:28,518 INFO L185 Difference]: Start difference. First operand has 41 places, 26 transitions, 122 flow. Second operand 5 states and 542 transitions. [2021-03-26 10:36:28,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 39 transitions, 188 flow [2021-03-26 10:36:28,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 39 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:36:28,522 INFO L241 Difference]: Finished difference. Result has 46 places, 35 transitions, 193 flow [2021-03-26 10:36:28,522 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=193, PETRI_PLACES=46, PETRI_TRANSITIONS=35} [2021-03-26 10:36:28,522 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 8 predicate places. [2021-03-26 10:36:28,523 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:36:28,523 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 35 transitions, 193 flow [2021-03-26 10:36:28,523 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 35 transitions, 193 flow [2021-03-26 10:36:28,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 35 transitions, 193 flow [2021-03-26 10:36:28,602 INFO L129 PetriNetUnfolder]: 487/871 cut-off events. [2021-03-26 10:36:28,602 INFO L130 PetriNetUnfolder]: For 1937/2448 co-relation queries the response was YES. [2021-03-26 10:36:28,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2749 conditions, 871 events. 487/871 cut-off events. For 1937/2448 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 5512 event pairs, 222 based on Foata normal form. 19/741 useless extension candidates. Maximal degree in co-relation 2731. Up to 716 conditions per place. [2021-03-26 10:36:28,613 INFO L142 LiptonReduction]: Number of co-enabled transitions 372 [2021-03-26 10:36:28,629 INFO L154 LiptonReduction]: Checked pairs total: 12 [2021-03-26 10:36:28,630 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:36:28,630 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 107 [2021-03-26 10:36:28,630 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 34 transitions, 187 flow [2021-03-26 10:36:28,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 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 10:36:28,631 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:36:28,631 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:36:28,631 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 10:36:28,631 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:36:28,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:36:28,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1153404828, now seen corresponding path program 1 times [2021-03-26 10:36:28,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:36:28,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901057298] [2021-03-26 10:36:28,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:36:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:36:28,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:28,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:28,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:28,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:28,688 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 10:36:28,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:36:28,695 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 10:36:28,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901057298] [2021-03-26 10:36:28,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:36:28,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:36:28,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384823460] [2021-03-26 10:36:28,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:36:28,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:36:28,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:36:28,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:36:28,699 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 134 [2021-03-26 10:36:28,699 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 34 transitions, 187 flow. Second operand has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 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 10:36:28,699 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:36:28,699 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 134 [2021-03-26 10:36:28,699 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:36:28,814 INFO L129 PetriNetUnfolder]: 348/681 cut-off events. [2021-03-26 10:36:28,815 INFO L130 PetriNetUnfolder]: For 2632/3319 co-relation queries the response was YES. [2021-03-26 10:36:28,818 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2700 conditions, 681 events. 348/681 cut-off events. For 2632/3319 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 4401 event pairs, 61 based on Foata normal form. 115/717 useless extension candidates. Maximal degree in co-relation 2680. Up to 585 conditions per place. [2021-03-26 10:36:28,821 INFO L132 encePairwiseOnDemand]: 127/134 looper letters, 10 selfloop transitions, 14 changer transitions 0/43 dead transitions. [2021-03-26 10:36:28,821 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 43 transitions, 287 flow [2021-03-26 10:36:28,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:36:28,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:36:28,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 650 transitions. [2021-03-26 10:36:28,823 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8084577114427861 [2021-03-26 10:36:28,823 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 650 transitions. [2021-03-26 10:36:28,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 650 transitions. [2021-03-26 10:36:28,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:36:28,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 650 transitions. [2021-03-26 10:36:28,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 108.33333333333333) internal successors, (650), 6 states have internal predecessors, (650), 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 10:36:28,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 134.0) internal successors, (938), 7 states have internal predecessors, (938), 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 10:36:28,827 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 134.0) internal successors, (938), 7 states have internal predecessors, (938), 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 10:36:28,827 INFO L185 Difference]: Start difference. First operand has 46 places, 34 transitions, 187 flow. Second operand 6 states and 650 transitions. [2021-03-26 10:36:28,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 43 transitions, 287 flow [2021-03-26 10:36:28,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 43 transitions, 280 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 10:36:28,831 INFO L241 Difference]: Finished difference. Result has 50 places, 39 transitions, 276 flow [2021-03-26 10:36:28,831 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=276, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2021-03-26 10:36:28,831 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 12 predicate places. [2021-03-26 10:36:28,832 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:36:28,832 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 39 transitions, 276 flow [2021-03-26 10:36:28,832 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 39 transitions, 276 flow [2021-03-26 10:36:28,833 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 39 transitions, 276 flow [2021-03-26 10:36:28,889 INFO L129 PetriNetUnfolder]: 347/679 cut-off events. [2021-03-26 10:36:28,889 INFO L130 PetriNetUnfolder]: For 2830/4081 co-relation queries the response was YES. [2021-03-26 10:36:28,892 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3164 conditions, 679 events. 347/679 cut-off events. For 2830/4081 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 4393 event pairs, 60 based on Foata normal form. 23/614 useless extension candidates. Maximal degree in co-relation 3143. Up to 585 conditions per place. [2021-03-26 10:36:28,898 INFO L142 LiptonReduction]: Number of co-enabled transitions 438 [2021-03-26 10:36:28,934 INFO L154 LiptonReduction]: Checked pairs total: 12 [2021-03-26 10:36:28,935 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:36:28,935 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 103 [2021-03-26 10:36:28,941 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 38 transitions, 268 flow [2021-03-26 10:36:28,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 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 10:36:28,941 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:36:28,942 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:36:28,942 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 10:36:28,942 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:36:28,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:36:28,943 INFO L82 PathProgramCache]: Analyzing trace with hash -287187521, now seen corresponding path program 1 times [2021-03-26 10:36:28,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:36:28,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655459211] [2021-03-26 10:36:28,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:36:28,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:36:28,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:28,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:29,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:29,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:29,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:29,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:29,011 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 10:36:29,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:36:29,019 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 10:36:29,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655459211] [2021-03-26 10:36:29,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:36:29,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:36:29,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104838877] [2021-03-26 10:36:29,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:36:29,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:36:29,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:36:29,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:36:29,022 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 134 [2021-03-26 10:36:29,022 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 38 transitions, 268 flow. Second operand has 6 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 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 10:36:29,022 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:36:29,023 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 134 [2021-03-26 10:36:29,023 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:36:29,122 INFO L129 PetriNetUnfolder]: 201/443 cut-off events. [2021-03-26 10:36:29,122 INFO L130 PetriNetUnfolder]: For 2078/2741 co-relation queries the response was YES. [2021-03-26 10:36:29,125 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2340 conditions, 443 events. 201/443 cut-off events. For 2078/2741 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 2757 event pairs, 12 based on Foata normal form. 125/524 useless extension candidates. Maximal degree in co-relation 2317. Up to 378 conditions per place. [2021-03-26 10:36:29,127 INFO L132 encePairwiseOnDemand]: 127/134 looper letters, 6 selfloop transitions, 18 changer transitions 4/47 dead transitions. [2021-03-26 10:36:29,127 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 47 transitions, 410 flow [2021-03-26 10:36:29,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:36:29,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:36:29,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 758 transitions. [2021-03-26 10:36:29,130 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8081023454157783 [2021-03-26 10:36:29,130 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 758 transitions. [2021-03-26 10:36:29,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 758 transitions. [2021-03-26 10:36:29,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:36:29,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 758 transitions. [2021-03-26 10:36:29,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 108.28571428571429) internal successors, (758), 7 states have internal predecessors, (758), 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 10:36:29,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 134.0) internal successors, (1072), 8 states have internal predecessors, (1072), 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 10:36:29,134 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 134.0) internal successors, (1072), 8 states have internal predecessors, (1072), 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 10:36:29,134 INFO L185 Difference]: Start difference. First operand has 50 places, 38 transitions, 268 flow. Second operand 7 states and 758 transitions. [2021-03-26 10:36:29,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 47 transitions, 410 flow [2021-03-26 10:36:29,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 47 transitions, 348 flow, removed 26 selfloop flow, removed 4 redundant places. [2021-03-26 10:36:29,143 INFO L241 Difference]: Finished difference. Result has 53 places, 43 transitions, 328 flow [2021-03-26 10:36:29,143 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=328, PETRI_PLACES=53, PETRI_TRANSITIONS=43} [2021-03-26 10:36:29,143 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 15 predicate places. [2021-03-26 10:36:29,144 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:36:29,144 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 43 transitions, 328 flow [2021-03-26 10:36:29,144 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 43 transitions, 328 flow [2021-03-26 10:36:29,144 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 43 transitions, 328 flow [2021-03-26 10:36:29,178 INFO L129 PetriNetUnfolder]: 189/427 cut-off events. [2021-03-26 10:36:29,178 INFO L130 PetriNetUnfolder]: For 1426/1617 co-relation queries the response was YES. [2021-03-26 10:36:29,181 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1983 conditions, 427 events. 189/427 cut-off events. For 1426/1617 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 2564 event pairs, 12 based on Foata normal form. 4/388 useless extension candidates. Maximal degree in co-relation 1961. Up to 339 conditions per place. [2021-03-26 10:36:29,184 INFO L142 LiptonReduction]: Number of co-enabled transitions 420 [2021-03-26 10:36:29,203 INFO L154 LiptonReduction]: Checked pairs total: 12 [2021-03-26 10:36:29,203 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:36:29,203 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 59 [2021-03-26 10:36:29,205 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 42 transitions, 318 flow [2021-03-26 10:36:29,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 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 10:36:29,205 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:36:29,206 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:36:29,206 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 10:36:29,206 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:36:29,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:36:29,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1800581968, now seen corresponding path program 1 times [2021-03-26 10:36:29,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:36:29,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097379410] [2021-03-26 10:36:29,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:36:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:36:29,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:29,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:36:29,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:29,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:29,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:29,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:29,274 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 10:36:29,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097379410] [2021-03-26 10:36:29,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:36:29,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:36:29,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520335942] [2021-03-26 10:36:29,275 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:36:29,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:36:29,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:36:29,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:36:29,276 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 134 [2021-03-26 10:36:29,276 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 42 transitions, 318 flow. Second operand has 4 states, 4 states have (on average 113.25) internal successors, (453), 4 states have internal predecessors, (453), 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 10:36:29,276 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:36:29,276 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 134 [2021-03-26 10:36:29,277 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:36:29,333 INFO L129 PetriNetUnfolder]: 249/542 cut-off events. [2021-03-26 10:36:29,334 INFO L130 PetriNetUnfolder]: For 1845/2047 co-relation queries the response was YES. [2021-03-26 10:36:29,336 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2339 conditions, 542 events. 249/542 cut-off events. For 1845/2047 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 3351 event pairs, 22 based on Foata normal form. 13/504 useless extension candidates. Maximal degree in co-relation 2315. Up to 401 conditions per place. [2021-03-26 10:36:29,338 INFO L132 encePairwiseOnDemand]: 131/134 looper letters, 7 selfloop transitions, 3 changer transitions 0/41 dead transitions. [2021-03-26 10:36:29,338 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 41 transitions, 304 flow [2021-03-26 10:36:29,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:36:29,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:36:29,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 457 transitions. [2021-03-26 10:36:29,340 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8526119402985075 [2021-03-26 10:36:29,340 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 457 transitions. [2021-03-26 10:36:29,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 457 transitions. [2021-03-26 10:36:29,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:36:29,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 457 transitions. [2021-03-26 10:36:29,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 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 10:36:29,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 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 10:36:29,343 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 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 10:36:29,343 INFO L185 Difference]: Start difference. First operand has 53 places, 42 transitions, 318 flow. Second operand 4 states and 457 transitions. [2021-03-26 10:36:29,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 41 transitions, 304 flow [2021-03-26 10:36:29,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 41 transitions, 263 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-03-26 10:36:29,355 INFO L241 Difference]: Finished difference. Result has 52 places, 40 transitions, 255 flow [2021-03-26 10:36:29,355 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=255, PETRI_PLACES=52, PETRI_TRANSITIONS=40} [2021-03-26 10:36:29,356 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 14 predicate places. [2021-03-26 10:36:29,356 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:36:29,356 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 40 transitions, 255 flow [2021-03-26 10:36:29,356 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 40 transitions, 255 flow [2021-03-26 10:36:29,356 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 40 transitions, 255 flow [2021-03-26 10:36:29,394 INFO L129 PetriNetUnfolder]: 238/519 cut-off events. [2021-03-26 10:36:29,394 INFO L130 PetriNetUnfolder]: For 938/984 co-relation queries the response was YES. [2021-03-26 10:36:29,397 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1826 conditions, 519 events. 238/519 cut-off events. For 938/984 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 3186 event pairs, 18 based on Foata normal form. 4/471 useless extension candidates. Maximal degree in co-relation 1804. Up to 265 conditions per place. [2021-03-26 10:36:29,400 INFO L142 LiptonReduction]: Number of co-enabled transitions 366 [2021-03-26 10:36:29,408 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:36:29,408 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:36:29,408 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 52 [2021-03-26 10:36:29,408 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 40 transitions, 255 flow [2021-03-26 10:36:29,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 113.25) internal successors, (453), 4 states have internal predecessors, (453), 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 10:36:29,409 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:36:29,409 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:36:29,409 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 10:36:29,409 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:36:29,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:36:29,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1450553588, now seen corresponding path program 2 times [2021-03-26 10:36:29,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:36:29,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539760741] [2021-03-26 10:36:29,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:36:29,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:36:29,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:29,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:29,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:29,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:29,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:29,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:29,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:29,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:29,480 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 10:36:29,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:36:29,509 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 10:36:29,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539760741] [2021-03-26 10:36:29,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:36:29,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:36:29,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228150842] [2021-03-26 10:36:29,510 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 10:36:29,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:36:29,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 10:36:29,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-26 10:36:29,511 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 134 [2021-03-26 10:36:29,512 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 40 transitions, 255 flow. Second operand has 7 states, 7 states have (on average 104.85714285714286) internal successors, (734), 7 states have internal predecessors, (734), 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 10:36:29,512 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:36:29,512 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 134 [2021-03-26 10:36:29,512 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:36:29,609 INFO L129 PetriNetUnfolder]: 226/505 cut-off events. [2021-03-26 10:36:29,610 INFO L130 PetriNetUnfolder]: For 1218/1649 co-relation queries the response was YES. [2021-03-26 10:36:29,612 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2163 conditions, 505 events. 226/505 cut-off events. For 1218/1649 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 3141 event pairs, 9 based on Foata normal form. 143/595 useless extension candidates. Maximal degree in co-relation 2139. Up to 259 conditions per place. [2021-03-26 10:36:29,613 INFO L132 encePairwiseOnDemand]: 127/134 looper letters, 2 selfloop transitions, 17 changer transitions 12/45 dead transitions. [2021-03-26 10:36:29,613 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 45 transitions, 351 flow [2021-03-26 10:36:29,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 10:36:29,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 10:36:29,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 858 transitions. [2021-03-26 10:36:29,615 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8003731343283582 [2021-03-26 10:36:29,615 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 858 transitions. [2021-03-26 10:36:29,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 858 transitions. [2021-03-26 10:36:29,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:36:29,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 858 transitions. [2021-03-26 10:36:29,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 107.25) internal successors, (858), 8 states have internal predecessors, (858), 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 10:36:29,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 134.0) internal successors, (1206), 9 states have internal predecessors, (1206), 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 10:36:29,619 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 134.0) internal successors, (1206), 9 states have internal predecessors, (1206), 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 10:36:29,620 INFO L185 Difference]: Start difference. First operand has 52 places, 40 transitions, 255 flow. Second operand 8 states and 858 transitions. [2021-03-26 10:36:29,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 45 transitions, 351 flow [2021-03-26 10:36:29,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 45 transitions, 334 flow, removed 8 selfloop flow, removed 1 redundant places. [2021-03-26 10:36:29,631 INFO L241 Difference]: Finished difference. Result has 61 places, 33 transitions, 248 flow [2021-03-26 10:36:29,631 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=248, PETRI_PLACES=61, PETRI_TRANSITIONS=33} [2021-03-26 10:36:29,631 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 23 predicate places. [2021-03-26 10:36:29,631 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:36:29,631 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 33 transitions, 248 flow [2021-03-26 10:36:29,632 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 33 transitions, 248 flow [2021-03-26 10:36:29,632 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 33 transitions, 248 flow [2021-03-26 10:36:29,641 INFO L129 PetriNetUnfolder]: 32/91 cut-off events. [2021-03-26 10:36:29,641 INFO L130 PetriNetUnfolder]: For 203/234 co-relation queries the response was YES. [2021-03-26 10:36:29,641 INFO L84 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 91 events. 32/91 cut-off events. For 203/234 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 325 event pairs, 3 based on Foata normal form. 1/82 useless extension candidates. Maximal degree in co-relation 346. Up to 34 conditions per place. [2021-03-26 10:36:29,642 INFO L142 LiptonReduction]: Number of co-enabled transitions 184 [2021-03-26 10:36:29,748 INFO L154 LiptonReduction]: Checked pairs total: 13 [2021-03-26 10:36:29,748 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 10:36:29,748 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 117 [2021-03-26 10:36:29,749 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 31 transitions, 244 flow [2021-03-26 10:36:29,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 104.85714285714286) internal successors, (734), 7 states have internal predecessors, (734), 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 10:36:29,750 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:36:29,750 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 10:36:29,750 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 10:36:29,750 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:36:29,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:36:29,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1244235527, now seen corresponding path program 1 times [2021-03-26 10:36:29,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:36:29,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923190851] [2021-03-26 10:36:29,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:36:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:36:29,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:29,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:29,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:29,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:29,800 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 10:36:29,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923190851] [2021-03-26 10:36:29,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:36:29,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:36:29,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263900607] [2021-03-26 10:36:29,800 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:36:29,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:36:29,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:36:29,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:36:29,801 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 136 [2021-03-26 10:36:29,802 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 31 transitions, 244 flow. Second operand has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 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 10:36:29,802 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:36:29,802 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 136 [2021-03-26 10:36:29,802 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:36:29,823 INFO L129 PetriNetUnfolder]: 40/110 cut-off events. [2021-03-26 10:36:29,823 INFO L130 PetriNetUnfolder]: For 637/704 co-relation queries the response was YES. [2021-03-26 10:36:29,824 INFO L84 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 110 events. 40/110 cut-off events. For 637/704 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 452 event pairs, 1 based on Foata normal form. 8/108 useless extension candidates. Maximal degree in co-relation 442. Up to 45 conditions per place. [2021-03-26 10:36:29,824 INFO L132 encePairwiseOnDemand]: 131/136 looper letters, 0 selfloop transitions, 0 changer transitions 31/31 dead transitions. [2021-03-26 10:36:29,824 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 31 transitions, 231 flow [2021-03-26 10:36:29,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:36:29,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:36:29,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 451 transitions. [2021-03-26 10:36:29,826 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8290441176470589 [2021-03-26 10:36:29,826 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 451 transitions. [2021-03-26 10:36:29,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 451 transitions. [2021-03-26 10:36:29,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:36:29,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 451 transitions. [2021-03-26 10:36:29,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 112.75) internal successors, (451), 4 states have internal predecessors, (451), 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 10:36:29,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 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 10:36:29,828 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 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 10:36:29,828 INFO L185 Difference]: Start difference. First operand has 56 places, 31 transitions, 244 flow. Second operand 4 states and 451 transitions. [2021-03-26 10:36:29,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 31 transitions, 231 flow [2021-03-26 10:36:29,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 31 transitions, 132 flow, removed 12 selfloop flow, removed 15 redundant places. [2021-03-26 10:36:29,830 INFO L241 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2021-03-26 10:36:29,831 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2021-03-26 10:36:29,831 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 5 predicate places. [2021-03-26 10:36:29,831 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:36:29,831 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 0 transitions, 0 flow [2021-03-26 10:36:29,831 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 0 transitions, 0 flow [2021-03-26 10:36:29,832 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 10:36:29,832 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 10:36:29,832 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:36:29,832 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-26 10:36:29,832 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 10:36:29,832 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:36:29,832 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:36:29,832 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 10:36:29,833 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 10:36:29,833 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 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 10:36:29,833 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 10:36:29,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 10:36:29 BasicIcfg [2021-03-26 10:36:29,836 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 10:36:29,837 INFO L168 Benchmark]: Toolchain (without parser) took 6193.54 ms. Allocated memory was 348.1 MB in the beginning and 419.4 MB in the end (delta: 71.3 MB). Free memory was 311.3 MB in the beginning and 317.5 MB in the end (delta: -6.2 MB). Peak memory consumption was 68.0 MB. Max. memory is 16.0 GB. [2021-03-26 10:36:29,837 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 348.1 MB. Free memory was 329.6 MB in the beginning and 329.5 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:36:29,837 INFO L168 Benchmark]: CACSL2BoogieTranslator took 547.80 ms. Allocated memory is still 348.1 MB. Free memory was 311.1 MB in the beginning and 310.3 MB in the end (delta: 866.2 kB). Peak memory consumption was 9.3 MB. Max. memory is 16.0 GB. [2021-03-26 10:36:29,838 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.23 ms. Allocated memory is still 348.1 MB. Free memory was 310.3 MB in the beginning and 308.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:36:29,838 INFO L168 Benchmark]: Boogie Preprocessor took 31.94 ms. Allocated memory is still 348.1 MB. Free memory was 308.2 MB in the beginning and 306.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:36:29,838 INFO L168 Benchmark]: RCFGBuilder took 482.04 ms. Allocated memory is still 348.1 MB. Free memory was 306.1 MB in the beginning and 282.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-26 10:36:29,838 INFO L168 Benchmark]: TraceAbstraction took 5063.66 ms. Allocated memory was 348.1 MB in the beginning and 419.4 MB in the end (delta: 71.3 MB). Free memory was 280.9 MB in the beginning and 317.5 MB in the end (delta: -36.6 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.0 GB. [2021-03-26 10:36:29,843 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 348.1 MB. Free memory was 329.6 MB in the beginning and 329.5 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 547.80 ms. Allocated memory is still 348.1 MB. Free memory was 311.1 MB in the beginning and 310.3 MB in the end (delta: 866.2 kB). Peak memory consumption was 9.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.23 ms. Allocated memory is still 348.1 MB. Free memory was 310.3 MB in the beginning and 308.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 31.94 ms. Allocated memory is still 348.1 MB. Free memory was 308.2 MB in the beginning and 306.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 482.04 ms. Allocated memory is still 348.1 MB. Free memory was 306.1 MB in the beginning and 282.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5063.66 ms. Allocated memory was 348.1 MB in the beginning and 419.4 MB in the end (delta: 71.3 MB). Free memory was 280.9 MB in the beginning and 317.5 MB in the end (delta: -36.6 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1608.4ms, 80 PlacesBefore, 38 PlacesAfterwards, 68 TransitionsBefore, 25 TransitionsAfterwards, 1250 CoEnabledTransitionPairs, 4 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 43 TotalNumberOfCompositions, 1269 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 878, positive: 850, positive conditional: 850, positive unconditional: 0, negative: 28, negative conditional: 28, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 878, positive: 850, positive conditional: 0, positive unconditional: 850, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 878, positive: 850, positive conditional: 0, positive unconditional: 850, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 759, positive: 735, positive conditional: 0, positive unconditional: 735, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 759, positive: 718, positive conditional: 0, positive unconditional: 718, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 178, positive: 72, positive conditional: 0, positive unconditional: 72, negative: 106, negative conditional: 0, negative unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 878, positive: 115, positive conditional: 0, positive unconditional: 115, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 759, unknown conditional: 0, unknown unconditional: 759] , Statistics on independence cache: Total cache size (in pairs): 759, Positive cache size: 735, Positive conditional cache size: 0, Positive unconditional cache size: 735, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 529.3ms, 37 PlacesBefore, 33 PlacesAfterwards, 25 TransitionsBefore, 21 TransitionsAfterwards, 196 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 502 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 184, positive: 145, positive conditional: 145, positive unconditional: 0, negative: 39, negative conditional: 39, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 184, positive: 145, positive conditional: 0, positive unconditional: 145, negative: 39, negative conditional: 2, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 184, positive: 145, positive conditional: 0, positive unconditional: 145, negative: 39, negative conditional: 2, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 59, positive: 46, positive conditional: 0, positive unconditional: 46, negative: 13, negative conditional: 1, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 59, positive: 46, positive conditional: 0, positive unconditional: 46, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 13, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 13, negative conditional: 1, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 74, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 74, negative conditional: 7, negative unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 184, positive: 99, positive conditional: 0, positive unconditional: 99, negative: 26, negative conditional: 1, negative unconditional: 25, unknown: 59, unknown conditional: 1, unknown unconditional: 58] , Statistics on independence cache: Total cache size (in pairs): 818, Positive cache size: 781, Positive conditional cache size: 0, Positive unconditional cache size: 781, Negative cache size: 37, Negative conditional cache size: 1, Negative unconditional cache size: 36, Eliminated conditions: 33 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 449.0ms, 36 PlacesBefore, 35 PlacesAfterwards, 24 TransitionsBefore, 23 TransitionsAfterwards, 196 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 144 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 22, positive: 12, positive conditional: 12, 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: 22, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 22, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 10, negative conditional: 0, 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: 0, positive unconditional: 1, 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: 2, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 22, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 820, Positive cache size: 782, Positive conditional cache size: 0, Positive unconditional cache size: 782, Negative cache size: 38, Negative conditional cache size: 1, Negative unconditional cache size: 37, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.9ms, 37 PlacesBefore, 37 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 212 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 112 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23, positive: 15, positive conditional: 15, 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: 24, positive: 15, positive conditional: 0, positive unconditional: 15, 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: 24, positive: 15, positive conditional: 0, positive unconditional: 15, 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: 4, positive: 3, positive conditional: 0, 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: 4, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 24, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 824, Positive cache size: 785, Positive conditional cache size: 0, Positive unconditional cache size: 785, Negative cache size: 39, Negative conditional cache size: 1, Negative unconditional cache size: 38, Eliminated conditions: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.0ms, 41 PlacesBefore, 41 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 224 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 86 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 6, negative conditional: 0, negative unconditional: 6, 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: 7, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 824, Positive cache size: 785, Positive conditional cache size: 0, Positive unconditional cache size: 785, Negative cache size: 39, Negative conditional cache size: 1, Negative unconditional cache size: 38, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 106.6ms, 46 PlacesBefore, 46 PlacesAfterwards, 35 TransitionsBefore, 34 TransitionsAfterwards, 372 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 12 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 12, 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: 12, positive: 12, positive conditional: 12, 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: 12, positive: 12, positive conditional: 12, 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: 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: 12, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 827, Positive cache size: 788, Positive conditional cache size: 3, Positive unconditional cache size: 785, Negative cache size: 39, Negative conditional cache size: 1, Negative unconditional cache size: 38, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 102.6ms, 50 PlacesBefore, 50 PlacesAfterwards, 39 TransitionsBefore, 38 TransitionsAfterwards, 438 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 12 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 12, 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: 12, positive: 12, positive conditional: 9, 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: 12, positive: 12, positive conditional: 9, 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: 3, positive: 3, positive conditional: 1, positive unconditional: 2, 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: 12, positive: 9, positive conditional: 8, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 830, Positive cache size: 791, Positive conditional cache size: 4, Positive unconditional cache size: 787, Negative cache size: 39, Negative conditional cache size: 1, Negative unconditional cache size: 38, Eliminated conditions: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 59.4ms, 53 PlacesBefore, 53 PlacesAfterwards, 43 TransitionsBefore, 42 TransitionsAfterwards, 420 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 12 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 12, 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: 12, positive: 12, positive conditional: 10, 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: 12, positive: 12, positive conditional: 10, 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: 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: 12, positive: 11, positive conditional: 9, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 831, Positive cache size: 792, Positive conditional cache size: 5, Positive unconditional cache size: 787, Negative cache size: 39, Negative conditional cache size: 1, Negative unconditional cache size: 38, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 51.7ms, 52 PlacesBefore, 52 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 366 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): 831, Positive cache size: 792, Positive conditional cache size: 5, Positive unconditional cache size: 787, Negative cache size: 39, Negative conditional cache size: 1, Negative unconditional cache size: 38, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 116.3ms, 61 PlacesBefore, 56 PlacesAfterwards, 33 TransitionsBefore, 31 TransitionsAfterwards, 184 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 13 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 13, 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: 13, positive: 13, positive conditional: 3, 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: 13, positive: 13, positive conditional: 3, 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: 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: 13, positive: 11, positive conditional: 2, positive unconditional: 9, 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): 833, Positive cache size: 794, Positive conditional cache size: 6, Positive unconditional cache size: 788, Negative cache size: 39, Negative conditional cache size: 1, Negative unconditional cache size: 38, Eliminated conditions: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6ms, 43 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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): 833, Positive cache size: 794, Positive conditional cache size: 6, Positive unconditional cache size: 788, Negative cache size: 39, Negative conditional cache size: 1, Negative unconditional cache size: 38, Eliminated conditions: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4952.7ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 851.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1701.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 41 SDtfs, 30 SDslu, 28 SDs, 0 SdLazy, 201 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 153.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 136.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=328occurred in iteration=7, InterpolantAutomatonStates: 49, 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: 28.1ms SsaConstructionTime, 185.8ms SatisfiabilityAnalysisTime, 523.8ms InterpolantComputationTime, 158 NumberOfCodeBlocks, 158 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 664 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...