/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 05:18:10,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 05:18:10,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 05:18:10,216 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 05:18:10,216 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 05:18:10,217 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 05:18:10,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 05:18:10,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 05:18:10,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 05:18:10,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 05:18:10,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 05:18:10,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 05:18:10,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 05:18:10,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 05:18:10,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 05:18:10,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 05:18:10,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 05:18:10,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 05:18:10,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 05:18:10,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 05:18:10,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 05:18:10,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 05:18:10,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 05:18:10,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 05:18:10,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 05:18:10,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 05:18:10,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 05:18:10,238 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 05:18:10,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 05:18:10,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 05:18:10,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 05:18:10,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 05:18:10,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 05:18:10,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 05:18:10,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 05:18:10,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 05:18:10,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 05:18:10,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 05:18:10,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 05:18:10,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 05:18:10,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 05:18:10,259 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2021-06-11 05:18:10,296 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 05:18:10,296 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 05:18:10,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 05:18:10,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 05:18:10,297 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 05:18:10,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 05:18:10,298 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 05:18:10,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 05:18:10,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 05:18:10,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 05:18:10,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 05:18:10,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 05:18:10,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 05:18:10,298 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 05:18:10,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 05:18:10,299 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 05:18:10,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 05:18:10,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 05:18:10,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 05:18:10,301 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 05:18:10,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 05:18:10,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 05:18:10,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 05:18:10,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 05:18:10,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 05:18:10,302 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 05:18:10,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 05:18:10,302 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 05:18:10,303 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 05:18:10,303 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 05:18:10,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 05:18:10,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 05:18:10,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 05:18:10,599 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 05:18:10,600 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 05:18:10,601 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i [2021-06-11 05:18:10,669 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68781f25d/4e01a1447f334fcc93ff86a62f580611/FLAG911acf768 [2021-06-11 05:18:11,219 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 05:18:11,219 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/17_szymanski.i [2021-06-11 05:18:11,243 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68781f25d/4e01a1447f334fcc93ff86a62f580611/FLAG911acf768 [2021-06-11 05:18:11,686 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68781f25d/4e01a1447f334fcc93ff86a62f580611 [2021-06-11 05:18:11,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 05:18:11,690 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 05:18:11,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 05:18:11,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 05:18:11,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 05:18:11,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 05:18:11" (1/1) ... [2021-06-11 05:18:11,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52c08707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 05:18:11, skipping insertion in model container [2021-06-11 05:18:11,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 05:18:11" (1/1) ... [2021-06-11 05:18:11,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 05:18:11,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 05:18:11,975 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-ext/17_szymanski.i[30132,30145] [2021-06-11 05:18:11,979 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-ext/17_szymanski.i[30481,30494] [2021-06-11 05:18:11,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 05:18:11,989 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 05:18:12,026 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-ext/17_szymanski.i[30132,30145] [2021-06-11 05:18:12,029 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-ext/17_szymanski.i[30481,30494] [2021-06-11 05:18:12,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 05:18:12,101 INFO L208 MainTranslator]: Completed translation [2021-06-11 05:18:12,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 05:18:12 WrapperNode [2021-06-11 05:18:12,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 05:18:12,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 05:18:12,103 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 05:18:12,103 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 05:18:12,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 05:18:12" (1/1) ... [2021-06-11 05:18:12,141 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 05:18:12" (1/1) ... [2021-06-11 05:18:12,159 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 05:18:12,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 05:18:12,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 05:18:12,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 05:18:12,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 05:18:12" (1/1) ... [2021-06-11 05:18:12,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 05:18:12" (1/1) ... [2021-06-11 05:18:12,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 05:18:12" (1/1) ... [2021-06-11 05:18:12,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 05:18:12" (1/1) ... [2021-06-11 05:18:12,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 05:18:12" (1/1) ... [2021-06-11 05:18:12,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 05:18:12" (1/1) ... [2021-06-11 05:18:12,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 05:18:12" (1/1) ... [2021-06-11 05:18:12,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 05:18:12,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 05:18:12,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 05:18:12,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 05:18:12,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 05:18:12" (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 [2021-06-11 05:18:12,259 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-06-11 05:18:12,260 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-06-11 05:18:12,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 05:18:12,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 05:18:12,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 05:18:12,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 05:18:12,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 05:18:12,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 05:18:12,264 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 05:18:12,661 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 05:18:12,662 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-06-11 05:18:12,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 05:18:12 BoogieIcfgContainer [2021-06-11 05:18:12,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 05:18:12,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 05:18:12,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 05:18:12,668 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 05:18:12,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 05:18:11" (1/3) ... [2021-06-11 05:18:12,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e5fbd34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 05:18:12, skipping insertion in model container [2021-06-11 05:18:12,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 05:18:12" (2/3) ... [2021-06-11 05:18:12,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e5fbd34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 05:18:12, skipping insertion in model container [2021-06-11 05:18:12,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 05:18:12" (3/3) ... [2021-06-11 05:18:12,670 INFO L111 eAbstractionObserver]: Analyzing ICFG 17_szymanski.i [2021-06-11 05:18:12,675 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 05:18:12,679 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-06-11 05:18:12,679 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 05:18:12,709 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 05:18:12,709 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 05:18:12,709 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 05:18:12,709 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 05:18:12,709 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 05:18:12,710 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 05:18:12,710 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 05:18:12,710 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 05:18:12,710 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 05:18:12,710 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 05:18:12,710 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 05:18:12,711 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 05:18:12,713 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 05:18:12,714 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 05:18:12,714 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 05:18:12,714 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 05:18:12,719 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-11 05:18:12,736 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-11 05:18:12,752 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 05:18:12,752 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 05:18:12,752 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 05:18:12,753 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 05:18:12,753 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 05:18:12,753 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 05:18:12,753 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 05:18:12,753 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 05:18:12,762 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 88 transitions, 181 flow [2021-06-11 05:18:12,793 INFO L129 PetriNetUnfolder]: 24/87 cut-off events. [2021-06-11 05:18:12,794 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 05:18:12,798 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 87 events. 24/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 146 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 72. Up to 3 conditions per place. [2021-06-11 05:18:12,798 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 88 transitions, 181 flow [2021-06-11 05:18:12,803 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 87 transitions, 177 flow [2021-06-11 05:18:12,804 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 05:18:12,815 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 87 transitions, 177 flow [2021-06-11 05:18:12,823 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 87 transitions, 177 flow [2021-06-11 05:18:12,828 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 87 transitions, 177 flow [2021-06-11 05:18:12,855 INFO L129 PetriNetUnfolder]: 24/87 cut-off events. [2021-06-11 05:18:12,855 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 05:18:12,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 87 events. 24/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 142 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 72. Up to 3 conditions per place. [2021-06-11 05:18:12,859 INFO L151 LiptonReduction]: Number of co-enabled transitions 2542 [2021-06-11 05:18:12,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:12,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:12,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:12,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:12,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:12,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:13,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:13,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:13,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:13,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 05:18:13,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:13,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 05:18:13,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 05:18:13,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:13,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:13,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:13,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:13,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:13,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:13,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:13,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:13,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:13,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:13,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:13,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:13,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:13,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:13,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:13,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:13,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:13,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 05:18:13,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:13,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 05:18:13,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 05:18:13,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:13,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:13,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:13,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:13,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:13,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:13,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:13,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:13,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:13,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:13,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:13,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:13,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:13,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:13,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:13,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 05:18:13,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:13,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 05:18:13,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 05:18:13,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:13,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:13,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:13,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:13,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:13,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:13,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:13,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:14,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:14,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 05:18:14,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:14,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 05:18:14,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 05:18:14,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:14,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:14,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:14,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:14,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:14,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 05:18:14,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:14,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 05:18:14,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 05:18:14,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:14,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:14,550 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2021-06-11 05:18:14,730 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2021-06-11 05:18:14,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:14,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 05:18:14,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:14,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 05:18:14,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 05:18:14,829 INFO L163 LiptonReduction]: Checked pairs total: 5762 [2021-06-11 05:18:14,829 INFO L165 LiptonReduction]: Total number of compositions: 52 [2021-06-11 05:18:14,832 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2029 [2021-06-11 05:18:14,842 INFO L129 PetriNetUnfolder]: 15/41 cut-off events. [2021-06-11 05:18:14,842 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 05:18:14,842 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 05:18:14,843 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 05:18:14,843 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 05:18:14,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 05:18:14,847 INFO L82 PathProgramCache]: Analyzing trace with hash 206851555, now seen corresponding path program 1 times [2021-06-11 05:18:14,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 05:18:14,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812181169] [2021-06-11 05:18:14,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 05:18:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 05:18:14,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:14,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:14,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:14,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:14,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 05:18:14,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812181169] [2021-06-11 05:18:14,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 05:18:14,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 05:18:14,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918332365] [2021-06-11 05:18:14,971 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-11 05:18:14,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 05:18:14,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-11 05:18:14,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-11 05:18:14,983 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 140 [2021-06-11 05:18:14,985 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 51 transitions, 105 flow. Second operand has 2 states, 2 states have (on average 104.0) internal successors, (208), 2 states have internal predecessors, (208), 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) [2021-06-11 05:18:14,985 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 05:18:14,985 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 140 [2021-06-11 05:18:14,986 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 05:18:14,994 INFO L129 PetriNetUnfolder]: 12/40 cut-off events. [2021-06-11 05:18:14,994 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 05:18:14,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 40 events. 12/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 11/39 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2021-06-11 05:18:14,996 INFO L132 encePairwiseOnDemand]: 129/140 looper letters, 0 selfloop transitions, 0 changer transitions 0/40 dead transitions. [2021-06-11 05:18:14,996 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 40 transitions, 83 flow [2021-06-11 05:18:14,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-11 05:18:14,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-06-11 05:18:15,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 217 transitions. [2021-06-11 05:18:15,006 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.775 [2021-06-11 05:18:15,006 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 217 transitions. [2021-06-11 05:18:15,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 217 transitions. [2021-06-11 05:18:15,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 05:18:15,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 217 transitions. [2021-06-11 05:18:15,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 108.5) internal successors, (217), 2 states have internal predecessors, (217), 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) [2021-06-11 05:18:15,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 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) [2021-06-11 05:18:15,016 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 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) [2021-06-11 05:18:15,017 INFO L185 Difference]: Start difference. First operand has 36 places, 51 transitions, 105 flow. Second operand 2 states and 217 transitions. [2021-06-11 05:18:15,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 40 transitions, 83 flow [2021-06-11 05:18:15,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 40 transitions, 82 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 05:18:15,021 INFO L241 Difference]: Finished difference. Result has 32 places, 40 transitions, 82 flow [2021-06-11 05:18:15,023 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=82, PETRI_PLACES=32, PETRI_TRANSITIONS=40} [2021-06-11 05:18:15,023 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, -4 predicate places. [2021-06-11 05:18:15,023 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 05:18:15,023 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 40 transitions, 82 flow [2021-06-11 05:18:15,024 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 40 transitions, 82 flow [2021-06-11 05:18:15,024 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 40 transitions, 82 flow [2021-06-11 05:18:15,028 INFO L129 PetriNetUnfolder]: 12/40 cut-off events. [2021-06-11 05:18:15,029 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 05:18:15,029 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 40 events. 12/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2021-06-11 05:18:15,029 INFO L151 LiptonReduction]: Number of co-enabled transitions 722 [2021-06-11 05:18:15,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:15,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:15,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:15,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:15,194 INFO L163 LiptonReduction]: Checked pairs total: 1672 [2021-06-11 05:18:15,194 INFO L165 LiptonReduction]: Total number of compositions: 3 [2021-06-11 05:18:15,195 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 172 [2021-06-11 05:18:15,195 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 40 transitions, 82 flow [2021-06-11 05:18:15,196 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 104.0) internal successors, (208), 2 states have internal predecessors, (208), 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) [2021-06-11 05:18:15,196 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 05:18:15,196 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 05:18:15,196 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 05:18:15,196 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 05:18:15,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 05:18:15,198 INFO L82 PathProgramCache]: Analyzing trace with hash 95599929, now seen corresponding path program 1 times [2021-06-11 05:18:15,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 05:18:15,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618108827] [2021-06-11 05:18:15,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 05:18:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 05:18:15,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:15,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:15,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:15,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 05:18:15,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 05:18:15,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618108827] [2021-06-11 05:18:15,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 05:18:15,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 05:18:15,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122646632] [2021-06-11 05:18:15,302 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 05:18:15,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 05:18:15,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 05:18:15,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 05:18:15,303 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 143 [2021-06-11 05:18:15,304 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 40 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2021-06-11 05:18:15,304 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 05:18:15,304 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 143 [2021-06-11 05:18:15,304 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 05:18:15,351 INFO L129 PetriNetUnfolder]: 63/163 cut-off events. [2021-06-11 05:18:15,351 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 05:18:15,353 INFO L84 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 163 events. 63/163 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 515 event pairs, 1 based on Foata normal form. 4/108 useless extension candidates. Maximal degree in co-relation 204. Up to 24 conditions per place. [2021-06-11 05:18:15,355 INFO L132 encePairwiseOnDemand]: 138/143 looper letters, 8 selfloop transitions, 4 changer transitions 0/45 dead transitions. [2021-06-11 05:18:15,355 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 45 transitions, 116 flow [2021-06-11 05:18:15,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 05:18:15,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 05:18:15,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2021-06-11 05:18:15,361 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6526806526806527 [2021-06-11 05:18:15,362 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 280 transitions. [2021-06-11 05:18:15,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 280 transitions. [2021-06-11 05:18:15,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 05:18:15,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 280 transitions. [2021-06-11 05:18:15,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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) [2021-06-11 05:18:15,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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) [2021-06-11 05:18:15,372 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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) [2021-06-11 05:18:15,372 INFO L185 Difference]: Start difference. First operand has 31 places, 40 transitions, 82 flow. Second operand 3 states and 280 transitions. [2021-06-11 05:18:15,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 45 transitions, 116 flow [2021-06-11 05:18:15,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 45 transitions, 116 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 05:18:15,374 INFO L241 Difference]: Finished difference. Result has 35 places, 44 transitions, 116 flow [2021-06-11 05:18:15,375 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=35, PETRI_TRANSITIONS=44} [2021-06-11 05:18:15,376 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, -1 predicate places. [2021-06-11 05:18:15,376 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 05:18:15,376 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 44 transitions, 116 flow [2021-06-11 05:18:15,376 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 44 transitions, 116 flow [2021-06-11 05:18:15,377 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 44 transitions, 116 flow [2021-06-11 05:18:15,391 INFO L129 PetriNetUnfolder]: 51/138 cut-off events. [2021-06-11 05:18:15,391 INFO L130 PetriNetUnfolder]: For 5/7 co-relation queries the response was YES. [2021-06-11 05:18:15,392 INFO L84 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 138 events. 51/138 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 409 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 180. Up to 16 conditions per place. [2021-06-11 05:18:15,395 INFO L151 LiptonReduction]: Number of co-enabled transitions 836 [2021-06-11 05:18:15,401 INFO L163 LiptonReduction]: Checked pairs total: 840 [2021-06-11 05:18:15,401 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 05:18:15,401 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-06-11 05:18:15,403 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 44 transitions, 116 flow [2021-06-11 05:18:15,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2021-06-11 05:18:15,403 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 05:18:15,403 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 05:18:15,403 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 05:18:15,404 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 05:18:15,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 05:18:15,404 INFO L82 PathProgramCache]: Analyzing trace with hash -2075180214, now seen corresponding path program 1 times [2021-06-11 05:18:15,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 05:18:15,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14838801] [2021-06-11 05:18:15,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 05:18:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 05:18:15,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:15,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:15,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:15,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 05:18:15,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 05:18:15,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14838801] [2021-06-11 05:18:15,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 05:18:15,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 05:18:15,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280781006] [2021-06-11 05:18:15,460 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 05:18:15,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 05:18:15,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 05:18:15,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 05:18:15,463 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 143 [2021-06-11 05:18:15,463 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 44 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2021-06-11 05:18:15,463 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 05:18:15,463 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 143 [2021-06-11 05:18:15,464 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 05:18:15,487 INFO L129 PetriNetUnfolder]: 53/139 cut-off events. [2021-06-11 05:18:15,487 INFO L130 PetriNetUnfolder]: For 19/29 co-relation queries the response was YES. [2021-06-11 05:18:15,488 INFO L84 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 139 events. 53/139 cut-off events. For 19/29 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 403 event pairs, 0 based on Foata normal form. 6/93 useless extension candidates. Maximal degree in co-relation 217. Up to 21 conditions per place. [2021-06-11 05:18:15,489 INFO L132 encePairwiseOnDemand]: 137/143 looper letters, 6 selfloop transitions, 5 changer transitions 0/44 dead transitions. [2021-06-11 05:18:15,489 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 44 transitions, 138 flow [2021-06-11 05:18:15,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 05:18:15,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 05:18:15,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2021-06-11 05:18:15,491 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6503496503496503 [2021-06-11 05:18:15,491 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 279 transitions. [2021-06-11 05:18:15,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 279 transitions. [2021-06-11 05:18:15,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 05:18:15,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 279 transitions. [2021-06-11 05:18:15,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 05:18:15,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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) [2021-06-11 05:18:15,494 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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) [2021-06-11 05:18:15,494 INFO L185 Difference]: Start difference. First operand has 35 places, 44 transitions, 116 flow. Second operand 3 states and 279 transitions. [2021-06-11 05:18:15,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 44 transitions, 138 flow [2021-06-11 05:18:15,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 44 transitions, 130 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 05:18:15,495 INFO L241 Difference]: Finished difference. Result has 36 places, 44 transitions, 125 flow [2021-06-11 05:18:15,496 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=36, PETRI_TRANSITIONS=44} [2021-06-11 05:18:15,496 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 0 predicate places. [2021-06-11 05:18:15,496 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 05:18:15,496 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 44 transitions, 125 flow [2021-06-11 05:18:15,497 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 44 transitions, 125 flow [2021-06-11 05:18:15,497 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 44 transitions, 125 flow [2021-06-11 05:18:15,504 INFO L129 PetriNetUnfolder]: 51/137 cut-off events. [2021-06-11 05:18:15,504 INFO L130 PetriNetUnfolder]: For 5/7 co-relation queries the response was YES. [2021-06-11 05:18:15,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 137 events. 51/137 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 398 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 191. Up to 16 conditions per place. [2021-06-11 05:18:15,505 INFO L151 LiptonReduction]: Number of co-enabled transitions 828 [2021-06-11 05:18:15,512 INFO L163 LiptonReduction]: Checked pairs total: 840 [2021-06-11 05:18:15,512 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 05:18:15,512 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-06-11 05:18:15,515 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 44 transitions, 125 flow [2021-06-11 05:18:15,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2021-06-11 05:18:15,515 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 05:18:15,515 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 05:18:15,515 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 05:18:15,515 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 05:18:15,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 05:18:15,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1045915215, now seen corresponding path program 1 times [2021-06-11 05:18:15,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 05:18:15,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988853290] [2021-06-11 05:18:15,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 05:18:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 05:18:15,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:15,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:15,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:15,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 05:18:15,563 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-06-11 05:18:15,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:15,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:15,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:15,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 05:18:15,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988853290] [2021-06-11 05:18:15,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 05:18:15,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 05:18:15,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139756798] [2021-06-11 05:18:15,566 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 05:18:15,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 05:18:15,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 05:18:15,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 05:18:15,567 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 143 [2021-06-11 05:18:15,567 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 44 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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) [2021-06-11 05:18:15,567 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 05:18:15,567 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 143 [2021-06-11 05:18:15,567 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 05:18:15,644 INFO L129 PetriNetUnfolder]: 278/531 cut-off events. [2021-06-11 05:18:15,644 INFO L130 PetriNetUnfolder]: For 36/40 co-relation queries the response was YES. [2021-06-11 05:18:15,646 INFO L84 FinitePrefix]: Finished finitePrefix Result has 931 conditions, 531 events. 278/531 cut-off events. For 36/40 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2175 event pairs, 52 based on Foata normal form. 0/343 useless extension candidates. Maximal degree in co-relation 920. Up to 228 conditions per place. [2021-06-11 05:18:15,648 INFO L132 encePairwiseOnDemand]: 131/143 looper letters, 20 selfloop transitions, 7 changer transitions 0/54 dead transitions. [2021-06-11 05:18:15,648 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 54 transitions, 199 flow [2021-06-11 05:18:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 05:18:15,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 05:18:15,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 278 transitions. [2021-06-11 05:18:15,653 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6480186480186481 [2021-06-11 05:18:15,653 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 278 transitions. [2021-06-11 05:18:15,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 278 transitions. [2021-06-11 05:18:15,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 05:18:15,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 278 transitions. [2021-06-11 05:18:15,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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) [2021-06-11 05:18:15,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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) [2021-06-11 05:18:15,656 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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) [2021-06-11 05:18:15,656 INFO L185 Difference]: Start difference. First operand has 36 places, 44 transitions, 125 flow. Second operand 3 states and 278 transitions. [2021-06-11 05:18:15,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 54 transitions, 199 flow [2021-06-11 05:18:15,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 54 transitions, 194 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 05:18:15,659 INFO L241 Difference]: Finished difference. Result has 39 places, 50 transitions, 182 flow [2021-06-11 05:18:15,659 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=39, PETRI_TRANSITIONS=50} [2021-06-11 05:18:15,660 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 3 predicate places. [2021-06-11 05:18:15,660 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 05:18:15,660 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 50 transitions, 182 flow [2021-06-11 05:18:15,660 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 50 transitions, 182 flow [2021-06-11 05:18:15,660 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 50 transitions, 182 flow [2021-06-11 05:18:15,680 INFO L129 PetriNetUnfolder]: 188/400 cut-off events. [2021-06-11 05:18:15,680 INFO L130 PetriNetUnfolder]: For 42/44 co-relation queries the response was YES. [2021-06-11 05:18:15,682 INFO L84 FinitePrefix]: Finished finitePrefix Result has 700 conditions, 400 events. 188/400 cut-off events. For 42/44 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1621 event pairs, 28 based on Foata normal form. 0/310 useless extension candidates. Maximal degree in co-relation 690. Up to 139 conditions per place. [2021-06-11 05:18:15,684 INFO L151 LiptonReduction]: Number of co-enabled transitions 658 [2021-06-11 05:18:15,698 INFO L163 LiptonReduction]: Checked pairs total: 331 [2021-06-11 05:18:15,698 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 05:18:15,698 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-06-11 05:18:15,700 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 50 transitions, 182 flow [2021-06-11 05:18:15,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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) [2021-06-11 05:18:15,701 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 05:18:15,701 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 05:18:15,701 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 05:18:15,701 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 05:18:15,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 05:18:15,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1020452311, now seen corresponding path program 2 times [2021-06-11 05:18:15,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 05:18:15,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218044745] [2021-06-11 05:18:15,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 05:18:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 05:18:15,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:15,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:15,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:15,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 05:18:15,746 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-06-11 05:18:15,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:15,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 05:18:15,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 05:18:15,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 05:18:15,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218044745] [2021-06-11 05:18:15,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 05:18:15,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 05:18:15,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564262607] [2021-06-11 05:18:15,749 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 05:18:15,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 05:18:15,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 05:18:15,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 05:18:15,750 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 143 [2021-06-11 05:18:15,750 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 50 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2021-06-11 05:18:15,750 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 05:18:15,750 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 143 [2021-06-11 05:18:15,750 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 05:18:15,824 INFO L129 PetriNetUnfolder]: 349/632 cut-off events. [2021-06-11 05:18:15,824 INFO L130 PetriNetUnfolder]: For 53/53 co-relation queries the response was YES. [2021-06-11 05:18:15,826 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1278 conditions, 632 events. 349/632 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2585 event pairs, 63 based on Foata normal form. 0/481 useless extension candidates. Maximal degree in co-relation 1266. Up to 217 conditions per place. [2021-06-11 05:18:15,828 INFO L132 encePairwiseOnDemand]: 131/143 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2021-06-11 05:18:15,828 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 58 transitions, 248 flow [2021-06-11 05:18:15,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 05:18:15,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 05:18:15,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 281 transitions. [2021-06-11 05:18:15,829 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.655011655011655 [2021-06-11 05:18:15,829 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 281 transitions. [2021-06-11 05:18:15,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 281 transitions. [2021-06-11 05:18:15,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 05:18:15,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 281 transitions. [2021-06-11 05:18:15,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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) [2021-06-11 05:18:15,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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) [2021-06-11 05:18:15,832 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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) [2021-06-11 05:18:15,832 INFO L185 Difference]: Start difference. First operand has 39 places, 50 transitions, 182 flow. Second operand 3 states and 281 transitions. [2021-06-11 05:18:15,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 58 transitions, 248 flow [2021-06-11 05:18:15,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 58 transitions, 229 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-11 05:18:15,837 INFO L241 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2021-06-11 05:18:15,838 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2021-06-11 05:18:15,838 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 0 predicate places. [2021-06-11 05:18:15,838 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 05:18:15,838 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 0 transitions, 0 flow [2021-06-11 05:18:15,838 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 0 transitions, 0 flow [2021-06-11 05:18:15,838 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 05:18:15,838 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 05:18:15,839 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 05:18:15,839 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. [2021-06-11 05:18:15,839 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 05:18:15,839 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 05:18:15,839 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 05:18:15,839 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-06-11 05:18:15,840 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 05:18:15,840 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2021-06-11 05:18:15,840 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 05:18:15,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 05:18:15 BasicIcfg [2021-06-11 05:18:15,844 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 05:18:15,844 INFO L168 Benchmark]: Toolchain (without parser) took 4154.58 ms. Allocated memory was 341.8 MB in the beginning and 411.0 MB in the end (delta: 69.2 MB). Free memory was 304.2 MB in the beginning and 242.7 MB in the end (delta: 61.4 MB). Peak memory consumption was 131.2 MB. Max. memory is 16.0 GB. [2021-06-11 05:18:15,845 INFO L168 Benchmark]: CDTParser took 0.87 ms. Allocated memory is still 341.8 MB. Free memory is still 322.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 05:18:15,845 INFO L168 Benchmark]: CACSL2BoogieTranslator took 411.44 ms. Allocated memory is still 341.8 MB. Free memory was 303.9 MB in the beginning and 305.7 MB in the end (delta: -1.7 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.0 GB. [2021-06-11 05:18:15,845 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.26 ms. Allocated memory is still 341.8 MB. Free memory was 305.7 MB in the beginning and 303.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 05:18:15,846 INFO L168 Benchmark]: Boogie Preprocessor took 31.47 ms. Allocated memory is still 341.8 MB. Free memory was 303.6 MB in the beginning and 302.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 05:18:15,847 INFO L168 Benchmark]: RCFGBuilder took 466.13 ms. Allocated memory is still 341.8 MB. Free memory was 301.5 MB in the beginning and 278.4 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-11 05:18:15,848 INFO L168 Benchmark]: TraceAbstraction took 3178.61 ms. Allocated memory was 341.8 MB in the beginning and 411.0 MB in the end (delta: 69.2 MB). Free memory was 278.4 MB in the beginning and 242.7 MB in the end (delta: 35.7 MB). Peak memory consumption was 107.0 MB. Max. memory is 16.0 GB. [2021-06-11 05:18:15,850 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87 ms. Allocated memory is still 341.8 MB. Free memory is still 322.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 411.44 ms. Allocated memory is still 341.8 MB. Free memory was 303.9 MB in the beginning and 305.7 MB in the end (delta: -1.7 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 56.26 ms. Allocated memory is still 341.8 MB. Free memory was 305.7 MB in the beginning and 303.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 31.47 ms. Allocated memory is still 341.8 MB. Free memory was 303.6 MB in the beginning and 302.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 466.13 ms. Allocated memory is still 341.8 MB. Free memory was 301.5 MB in the beginning and 278.4 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3178.61 ms. Allocated memory was 341.8 MB in the beginning and 411.0 MB in the end (delta: 69.2 MB). Free memory was 278.4 MB in the beginning and 242.7 MB in the end (delta: 35.7 MB). Peak memory consumption was 107.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2006.6ms, 67 PlacesBefore, 36 PlacesAfterwards, 87 TransitionsBefore, 51 TransitionsAfterwards, 2542 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 5 ChoiceCompositions, 52 TotalNumberOfCompositions, 5762 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2431, positive: 2262, positive conditional: 0, positive unconditional: 2262, negative: 169, negative conditional: 0, negative unconditional: 169, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1338, positive: 1298, positive conditional: 0, positive unconditional: 1298, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1338, positive: 1298, positive conditional: 0, positive unconditional: 1298, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1338, positive: 1251, positive conditional: 0, positive unconditional: 1251, negative: 87, negative conditional: 0, negative unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 87, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 155, positive: 75, positive conditional: 0, positive unconditional: 75, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2431, positive: 964, positive conditional: 0, positive unconditional: 964, negative: 129, negative conditional: 0, negative unconditional: 129, unknown: 1338, unknown conditional: 0, unknown unconditional: 1338] , Statistics on independence cache: Total cache size (in pairs): 1755, Positive cache size: 1718, Positive conditional cache size: 0, Positive unconditional cache size: 1718, Negative cache size: 37, Negative conditional cache size: 0, Negative unconditional cache size: 37 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 170.4ms, 32 PlacesBefore, 31 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 722 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 1672 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 544, positive: 459, positive conditional: 0, positive unconditional: 459, negative: 85, negative conditional: 0, negative unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 157, positive: 135, positive conditional: 0, positive unconditional: 135, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 157, positive: 135, positive conditional: 0, positive unconditional: 135, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 157, positive: 112, positive conditional: 0, positive unconditional: 112, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 45, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 76, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 544, positive: 324, positive conditional: 0, positive unconditional: 324, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 157, unknown conditional: 0, unknown unconditional: 157] , Statistics on independence cache: Total cache size (in pairs): 1999, Positive cache size: 1940, Positive conditional cache size: 0, Positive unconditional cache size: 1940, Negative cache size: 59, Negative conditional cache size: 0, Negative unconditional cache size: 59 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.7ms, 35 PlacesBefore, 35 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 836 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 840 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 164, positive: 124, positive conditional: 0, positive unconditional: 124, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 164, positive: 124, positive conditional: 0, positive unconditional: 124, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1999, Positive cache size: 1940, Positive conditional cache size: 0, Positive unconditional cache size: 1940, Negative cache size: 59, Negative conditional cache size: 0, Negative unconditional cache size: 59 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.9ms, 36 PlacesBefore, 36 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 828 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 840 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 184, positive: 144, positive conditional: 0, positive unconditional: 144, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 184, positive: 143, positive conditional: 0, positive unconditional: 143, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 2000, Positive cache size: 1941, Positive conditional cache size: 0, Positive unconditional cache size: 1941, Negative cache size: 59, Negative conditional cache size: 0, Negative unconditional cache size: 59 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.0ms, 39 PlacesBefore, 39 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 658 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 331 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 50, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 50, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 8, unknown conditional: 0, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 2008, Positive cache size: 1948, Positive conditional cache size: 0, Positive unconditional cache size: 1948, Negative cache size: 60, Negative conditional cache size: 0, Negative unconditional cache size: 60 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 36 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2008, Positive cache size: 1948, Positive conditional cache size: 0, Positive unconditional cache size: 1948, Negative cache size: 60, Negative conditional cache size: 0, Negative unconditional cache size: 60 - PositiveResult [Line: 698]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 716]: 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 2 procedures, 65 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3092.8ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 334.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2083.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 61 SDtfs, 10 SDslu, 0 SDs, 0 SdLazy, 60 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 62.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=182occurred in iteration=4, InterpolantAutomatonStates: 14, 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: 13.5ms SsaConstructionTime, 83.8ms SatisfiabilityAnalysisTime, 161.8ms InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 77 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...