/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-wmm/safe017_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 06:44:20,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 06:44:20,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 06:44:20,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 06:44:20,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 06:44:20,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 06:44:20,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 06:44:20,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 06:44:20,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 06:44:20,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 06:44:20,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 06:44:20,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 06:44:20,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 06:44:20,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 06:44:20,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 06:44:20,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 06:44:20,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 06:44:20,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 06:44:20,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 06:44:20,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 06:44:20,091 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 06:44:20,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 06:44:20,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 06:44:20,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 06:44:20,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 06:44:20,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 06:44:20,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 06:44:20,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 06:44:20,101 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 06:44:20,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 06:44:20,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 06:44:20,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 06:44:20,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 06:44:20,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 06:44:20,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 06:44:20,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 06:44:20,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 06:44:20,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 06:44:20,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 06:44:20,104 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 06:44:20,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 06:44:20,105 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 06:44:20,121 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 06:44:20,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 06:44:20,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 06:44:20,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 06:44:20,123 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 06:44:20,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 06:44:20,123 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 06:44:20,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 06:44:20,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 06:44:20,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 06:44:20,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 06:44:20,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 06:44:20,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 06:44:20,124 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 06:44:20,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 06:44:20,124 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 06:44:20,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 06:44:20,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 06:44:20,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 06:44:20,124 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 06:44:20,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 06:44:20,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 06:44:20,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 06:44:20,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 06:44:20,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 06:44:20,125 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 06:44:20,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 06:44:20,125 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 06:44:20,126 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 06:44:20,126 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 06:44:20,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 06:44:20,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 06:44:20,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 06:44:20,370 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 06:44:20,371 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 06:44:20,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i [2021-06-11 06:44:20,415 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0a02fcc2/3958f9c927f94edab9e0a7d17a18e9cb/FLAG773af04e9 [2021-06-11 06:44:20,847 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 06:44:20,847 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i [2021-06-11 06:44:20,857 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0a02fcc2/3958f9c927f94edab9e0a7d17a18e9cb/FLAG773af04e9 [2021-06-11 06:44:20,870 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0a02fcc2/3958f9c927f94edab9e0a7d17a18e9cb [2021-06-11 06:44:20,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 06:44:20,873 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 06:44:20,875 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 06:44:20,875 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 06:44:20,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 06:44:20,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 06:44:20" (1/1) ... [2021-06-11 06:44:20,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c05c7db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:44:20, skipping insertion in model container [2021-06-11 06:44:20,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 06:44:20" (1/1) ... [2021-06-11 06:44:20,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 06:44:20,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 06:44:21,080 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i[949,962] [2021-06-11 06:44:21,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 06:44:21,213 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 06:44:21,221 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i[949,962] [2021-06-11 06:44:21,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 06:44:21,292 INFO L208 MainTranslator]: Completed translation [2021-06-11 06:44:21,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:44:21 WrapperNode [2021-06-11 06:44:21,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 06:44:21,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 06:44:21,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 06:44:21,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 06:44:21,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:44:21" (1/1) ... [2021-06-11 06:44:21,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:44:21" (1/1) ... [2021-06-11 06:44:21,319 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 06:44:21,319 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 06:44:21,319 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 06:44:21,319 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 06:44:21,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:44:21" (1/1) ... [2021-06-11 06:44:21,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:44:21" (1/1) ... [2021-06-11 06:44:21,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:44:21" (1/1) ... [2021-06-11 06:44:21,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:44:21" (1/1) ... [2021-06-11 06:44:21,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:44:21" (1/1) ... [2021-06-11 06:44:21,329 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:44:21" (1/1) ... [2021-06-11 06:44:21,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:44:21" (1/1) ... [2021-06-11 06:44:21,332 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 06:44:21,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 06:44:21,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 06:44:21,333 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 06:44:21,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:44:21" (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 06:44:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 06:44:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-11 06:44:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 06:44:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 06:44:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-11 06:44:21,382 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-11 06:44:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-11 06:44:21,382 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-11 06:44:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-11 06:44:21,383 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-11 06:44:21,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 06:44:21,383 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-11 06:44:21,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 06:44:21,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 06:44:21,384 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 06:44:21,629 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 06:44:21,629 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-11 06:44:21,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 06:44:21 BoogieIcfgContainer [2021-06-11 06:44:21,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 06:44:21,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 06:44:21,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 06:44:21,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 06:44:21,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 06:44:20" (1/3) ... [2021-06-11 06:44:21,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ac8fd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 06:44:21, skipping insertion in model container [2021-06-11 06:44:21,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:44:21" (2/3) ... [2021-06-11 06:44:21,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ac8fd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 06:44:21, skipping insertion in model container [2021-06-11 06:44:21,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 06:44:21" (3/3) ... [2021-06-11 06:44:21,636 INFO L111 eAbstractionObserver]: Analyzing ICFG safe017_tso.opt.i [2021-06-11 06:44:21,639 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 06:44:21,644 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 06:44:21,644 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 06:44:21,675 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,675 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,675 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,675 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,675 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,676 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,676 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,676 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,676 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,676 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,676 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,677 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,677 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,677 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,678 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,678 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,678 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,678 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,678 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,678 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,679 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,679 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,679 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,680 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,680 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,680 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,681 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,681 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,681 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,681 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,682 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,682 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,682 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,682 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,684 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,684 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,684 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,684 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,688 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,688 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,689 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,689 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,691 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,691 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,691 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,691 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:44:21,692 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-11 06:44:21,705 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-11 06:44:21,725 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 06:44:21,725 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 06:44:21,725 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 06:44:21,725 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 06:44:21,726 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 06:44:21,726 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 06:44:21,726 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 06:44:21,726 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 06:44:21,734 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 72 transitions, 159 flow [2021-06-11 06:44:21,775 INFO L129 PetriNetUnfolder]: 2/69 cut-off events. [2021-06-11 06:44:21,775 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:44:21,778 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 69 events. 2/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2021-06-11 06:44:21,778 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 72 transitions, 159 flow [2021-06-11 06:44:21,782 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 57 transitions, 123 flow [2021-06-11 06:44:21,783 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:44:21,790 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 57 transitions, 123 flow [2021-06-11 06:44:21,794 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 57 transitions, 123 flow [2021-06-11 06:44:21,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 57 transitions, 123 flow [2021-06-11 06:44:21,813 INFO L129 PetriNetUnfolder]: 1/57 cut-off events. [2021-06-11 06:44:21,813 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:44:21,813 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 57 events. 1/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2021-06-11 06:44:21,816 INFO L151 LiptonReduction]: Number of co-enabled transitions 804 [2021-06-11 06:44:21,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:21,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:44:21,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:21,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:44:21,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:44:21,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:21,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:44:21,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:21,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:44:21,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:21,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:44:22,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:44:22,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:44:22,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:44:22,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:44:22,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:44:22,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:44:22,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:44:22,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:44:22,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:44:22,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:44:22,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:44:22,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:44:22,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:44:22,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:44:22,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:44:22,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:44:22,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 06:44:22,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:44:22,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:44:22,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,514 INFO L147 QuantifierPusher]: treesize reduction 22, result has 4.3 percent of original size 1 [2021-06-11 06:44:22,524 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-06-11 06:44:22,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:44:22,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:44:22,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:44:22,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:44:22,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:44:22,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:44:22,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:44:22,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:44:22,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:44:22,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:44:22,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:44:22,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:44:22,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:44:22,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:22,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:44:23,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:23,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:44:23,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:23,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:44:23,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:44:23,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:23,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:44:23,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:23,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:44:23,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 06:44:23,511 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2021-06-11 06:44:23,696 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2021-06-11 06:44:23,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:23,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:44:23,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:23,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:44:23,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:44:23,770 INFO L163 LiptonReduction]: Checked pairs total: 1516 [2021-06-11 06:44:23,771 INFO L165 LiptonReduction]: Total number of compositions: 45 [2021-06-11 06:44:23,773 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1991 [2021-06-11 06:44:23,781 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-06-11 06:44:23,781 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:44:23,782 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:44:23,782 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:44:23,783 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:44:23,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:44:23,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1767820329, now seen corresponding path program 1 times [2021-06-11 06:44:23,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:44:23,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881102174] [2021-06-11 06:44:23,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:44:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:44:23,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:23,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:44:23,930 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 06:44:23,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881102174] [2021-06-11 06:44:23,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:44:23,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 06:44:23,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003379813] [2021-06-11 06:44:23,936 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-11 06:44:23,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:44:23,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-11 06:44:23,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-11 06:44:23,949 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 117 [2021-06-11 06:44:23,950 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 43 flow. Second operand has 2 states, 2 states have (on average 110.5) internal successors, (221), 2 states have internal predecessors, (221), 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 06:44:23,951 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:44:23,951 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 117 [2021-06-11 06:44:23,951 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:44:23,957 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-06-11 06:44:23,957 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:44:23,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 16 events. 0/16 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 1/17 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-11 06:44:23,958 INFO L132 encePairwiseOnDemand]: 116/117 looper letters, 0 selfloop transitions, 0 changer transitions 0/16 dead transitions. [2021-06-11 06:44:23,958 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 16 transitions, 41 flow [2021-06-11 06:44:23,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-11 06:44:23,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-06-11 06:44:23,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 221 transitions. [2021-06-11 06:44:23,966 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2021-06-11 06:44:23,966 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 221 transitions. [2021-06-11 06:44:23,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 221 transitions. [2021-06-11 06:44:23,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:44:23,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 221 transitions. [2021-06-11 06:44:23,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 110.5) internal successors, (221), 2 states have internal predecessors, (221), 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 06:44:23,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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 06:44:23,973 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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 06:44:23,974 INFO L185 Difference]: Start difference. First operand has 26 places, 17 transitions, 43 flow. Second operand 2 states and 221 transitions. [2021-06-11 06:44:23,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 16 transitions, 41 flow [2021-06-11 06:44:23,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 16 transitions, 38 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-11 06:44:23,977 INFO L241 Difference]: Finished difference. Result has 24 places, 16 transitions, 38 flow [2021-06-11 06:44:23,978 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=38, PETRI_PLACES=24, PETRI_TRANSITIONS=16} [2021-06-11 06:44:23,978 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, -2 predicate places. [2021-06-11 06:44:23,979 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:44:23,979 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 16 transitions, 38 flow [2021-06-11 06:44:23,979 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 16 transitions, 38 flow [2021-06-11 06:44:23,979 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 23 places, 16 transitions, 38 flow [2021-06-11 06:44:23,981 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-06-11 06:44:23,981 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:44:23,981 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23 conditions, 16 events. 0/16 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-11 06:44:23,982 INFO L151 LiptonReduction]: Number of co-enabled transitions 106 [2021-06-11 06:44:23,983 INFO L163 LiptonReduction]: Checked pairs total: 108 [2021-06-11 06:44:23,983 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:44:23,983 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4 [2021-06-11 06:44:23,983 INFO L480 AbstractCegarLoop]: Abstraction has has 23 places, 16 transitions, 38 flow [2021-06-11 06:44:23,984 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 110.5) internal successors, (221), 2 states have internal predecessors, (221), 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 06:44:23,984 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:44:23,984 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:44:23,984 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 06:44:23,984 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:44:23,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:44:23,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1032144776, now seen corresponding path program 1 times [2021-06-11 06:44:23,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:44:23,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442840312] [2021-06-11 06:44:23,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:44:24,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:44:24,038 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:44:24,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:44:24,049 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 06:44:24,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442840312] [2021-06-11 06:44:24,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:44:24,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 06:44:24,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516398411] [2021-06-11 06:44:24,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 06:44:24,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:44:24,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 06:44:24,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 06:44:24,053 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 117 [2021-06-11 06:44:24,053 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 16 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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 06:44:24,053 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:44:24,053 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 117 [2021-06-11 06:44:24,053 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:44:24,089 INFO L129 PetriNetUnfolder]: 45/132 cut-off events. [2021-06-11 06:44:24,089 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:44:24,091 INFO L84 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 132 events. 45/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 609 event pairs, 17 based on Foata normal form. 9/134 useless extension candidates. Maximal degree in co-relation 227. Up to 62 conditions per place. [2021-06-11 06:44:24,092 INFO L132 encePairwiseOnDemand]: 110/117 looper letters, 6 selfloop transitions, 6 changer transitions 0/21 dead transitions. [2021-06-11 06:44:24,092 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 21 transitions, 72 flow [2021-06-11 06:44:24,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 06:44:24,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 06:44:24,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 271 transitions. [2021-06-11 06:44:24,094 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7720797720797721 [2021-06-11 06:44:24,094 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 271 transitions. [2021-06-11 06:44:24,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 271 transitions. [2021-06-11 06:44:24,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:44:24,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 271 transitions. [2021-06-11 06:44:24,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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 06:44:24,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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 06:44:24,097 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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 06:44:24,097 INFO L185 Difference]: Start difference. First operand has 23 places, 16 transitions, 38 flow. Second operand 3 states and 271 transitions. [2021-06-11 06:44:24,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 21 transitions, 72 flow [2021-06-11 06:44:24,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 21 transitions, 72 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 06:44:24,098 INFO L241 Difference]: Finished difference. Result has 27 places, 21 transitions, 84 flow [2021-06-11 06:44:24,098 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=27, PETRI_TRANSITIONS=21} [2021-06-11 06:44:24,098 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 1 predicate places. [2021-06-11 06:44:24,098 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:44:24,098 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 21 transitions, 84 flow [2021-06-11 06:44:24,099 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 21 transitions, 84 flow [2021-06-11 06:44:24,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 21 transitions, 84 flow [2021-06-11 06:44:24,110 INFO L129 PetriNetUnfolder]: 45/136 cut-off events. [2021-06-11 06:44:24,110 INFO L130 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2021-06-11 06:44:24,111 INFO L84 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 136 events. 45/136 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 651 event pairs, 17 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 276. Up to 62 conditions per place. [2021-06-11 06:44:24,112 INFO L151 LiptonReduction]: Number of co-enabled transitions 118 [2021-06-11 06:44:24,113 INFO L163 LiptonReduction]: Checked pairs total: 13 [2021-06-11 06:44:24,113 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:44:24,113 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-06-11 06:44:24,115 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 21 transitions, 84 flow [2021-06-11 06:44:24,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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 06:44:24,115 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:44:24,115 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:44:24,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 06:44:24,115 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:44:24,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:44:24,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1357410665, now seen corresponding path program 1 times [2021-06-11 06:44:24,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:44:24,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637668937] [2021-06-11 06:44:24,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:44:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:44:24,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:24,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:44:24,185 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 06:44:24,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637668937] [2021-06-11 06:44:24,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:44:24,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 06:44:24,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980278494] [2021-06-11 06:44:24,186 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 06:44:24,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:44:24,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 06:44:24,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 06:44:24,188 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 117 [2021-06-11 06:44:24,188 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 21 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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 06:44:24,188 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:44:24,188 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 117 [2021-06-11 06:44:24,188 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:44:24,203 INFO L129 PetriNetUnfolder]: 30/98 cut-off events. [2021-06-11 06:44:24,203 INFO L130 PetriNetUnfolder]: For 35/82 co-relation queries the response was YES. [2021-06-11 06:44:24,204 INFO L84 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 98 events. 30/98 cut-off events. For 35/82 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 409 event pairs, 5 based on Foata normal form. 3/98 useless extension candidates. Maximal degree in co-relation 250. Up to 46 conditions per place. [2021-06-11 06:44:24,204 INFO L132 encePairwiseOnDemand]: 113/117 looper letters, 9 selfloop transitions, 5 changer transitions 0/27 dead transitions. [2021-06-11 06:44:24,204 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 27 transitions, 142 flow [2021-06-11 06:44:24,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 06:44:24,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 06:44:24,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 294 transitions. [2021-06-11 06:44:24,206 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8376068376068376 [2021-06-11 06:44:24,206 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 294 transitions. [2021-06-11 06:44:24,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 294 transitions. [2021-06-11 06:44:24,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:44:24,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 294 transitions. [2021-06-11 06:44:24,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 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 06:44:24,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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 06:44:24,208 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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 06:44:24,208 INFO L185 Difference]: Start difference. First operand has 27 places, 21 transitions, 84 flow. Second operand 3 states and 294 transitions. [2021-06-11 06:44:24,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 27 transitions, 142 flow [2021-06-11 06:44:24,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 27 transitions, 124 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 06:44:24,209 INFO L241 Difference]: Finished difference. Result has 28 places, 25 transitions, 113 flow [2021-06-11 06:44:24,209 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=113, PETRI_PLACES=28, PETRI_TRANSITIONS=25} [2021-06-11 06:44:24,210 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 2 predicate places. [2021-06-11 06:44:24,210 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:44:24,210 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 25 transitions, 113 flow [2021-06-11 06:44:24,210 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 25 transitions, 113 flow [2021-06-11 06:44:24,210 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 25 transitions, 113 flow [2021-06-11 06:44:24,215 INFO L129 PetriNetUnfolder]: 30/98 cut-off events. [2021-06-11 06:44:24,215 INFO L130 PetriNetUnfolder]: For 19/29 co-relation queries the response was YES. [2021-06-11 06:44:24,216 INFO L84 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 98 events. 30/98 cut-off events. For 19/29 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 408 event pairs, 8 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 216. Up to 46 conditions per place. [2021-06-11 06:44:24,216 INFO L151 LiptonReduction]: Number of co-enabled transitions 140 [2021-06-11 06:44:24,218 INFO L163 LiptonReduction]: Checked pairs total: 17 [2021-06-11 06:44:24,218 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:44:24,218 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-06-11 06:44:24,219 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 25 transitions, 113 flow [2021-06-11 06:44:24,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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 06:44:24,219 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:44:24,219 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:44:24,219 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 06:44:24,219 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:44:24,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:44:24,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1931717421, now seen corresponding path program 1 times [2021-06-11 06:44:24,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:44:24,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428038954] [2021-06-11 06:44:24,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:44:24,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:44:24,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:24,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:44:24,250 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 06:44:24,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428038954] [2021-06-11 06:44:24,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:44:24,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 06:44:24,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939091394] [2021-06-11 06:44:24,251 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 06:44:24,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:44:24,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 06:44:24,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 06:44:24,252 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 117 [2021-06-11 06:44:24,252 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 25 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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 06:44:24,252 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:44:24,252 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 117 [2021-06-11 06:44:24,252 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:44:24,260 INFO L129 PetriNetUnfolder]: 25/90 cut-off events. [2021-06-11 06:44:24,260 INFO L130 PetriNetUnfolder]: For 58/88 co-relation queries the response was YES. [2021-06-11 06:44:24,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 90 events. 25/90 cut-off events. For 58/88 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 354 event pairs, 6 based on Foata normal form. 3/90 useless extension candidates. Maximal degree in co-relation 209. Up to 38 conditions per place. [2021-06-11 06:44:24,261 INFO L132 encePairwiseOnDemand]: 114/117 looper letters, 1 selfloop transitions, 3 changer transitions 0/25 dead transitions. [2021-06-11 06:44:24,261 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 25 transitions, 121 flow [2021-06-11 06:44:24,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 06:44:24,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 06:44:24,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 295 transitions. [2021-06-11 06:44:24,262 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8404558404558404 [2021-06-11 06:44:24,262 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 295 transitions. [2021-06-11 06:44:24,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 295 transitions. [2021-06-11 06:44:24,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:44:24,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 295 transitions. [2021-06-11 06:44:24,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 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 06:44:24,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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 06:44:24,264 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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 06:44:24,264 INFO L185 Difference]: Start difference. First operand has 28 places, 25 transitions, 113 flow. Second operand 3 states and 295 transitions. [2021-06-11 06:44:24,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 25 transitions, 121 flow [2021-06-11 06:44:24,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 25 transitions, 116 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 06:44:24,266 INFO L241 Difference]: Finished difference. Result has 30 places, 25 transitions, 119 flow [2021-06-11 06:44:24,266 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=30, PETRI_TRANSITIONS=25} [2021-06-11 06:44:24,266 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 4 predicate places. [2021-06-11 06:44:24,266 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:44:24,266 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 25 transitions, 119 flow [2021-06-11 06:44:24,266 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 25 transitions, 119 flow [2021-06-11 06:44:24,266 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 25 transitions, 119 flow [2021-06-11 06:44:24,271 INFO L129 PetriNetUnfolder]: 25/87 cut-off events. [2021-06-11 06:44:24,271 INFO L130 PetriNetUnfolder]: For 32/38 co-relation queries the response was YES. [2021-06-11 06:44:24,271 INFO L84 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 87 events. 25/87 cut-off events. For 32/38 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 338 event pairs, 6 based on Foata normal form. 1/85 useless extension candidates. Maximal degree in co-relation 202. Up to 38 conditions per place. [2021-06-11 06:44:24,272 INFO L151 LiptonReduction]: Number of co-enabled transitions 140 [2021-06-11 06:44:24,273 INFO L163 LiptonReduction]: Checked pairs total: 17 [2021-06-11 06:44:24,273 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:44:24,273 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-06-11 06:44:24,274 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 25 transitions, 119 flow [2021-06-11 06:44:24,274 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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 06:44:24,274 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:44:24,274 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:44:24,274 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 06:44:24,274 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:44:24,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:44:24,275 INFO L82 PathProgramCache]: Analyzing trace with hash 246301532, now seen corresponding path program 1 times [2021-06-11 06:44:24,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:44:24,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262865171] [2021-06-11 06:44:24,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:44:24,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:44:24,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:24,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:44:24,304 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:44:24,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:44:24,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:44:24,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262865171] [2021-06-11 06:44:24,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:44:24,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:44:24,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294344309] [2021-06-11 06:44:24,311 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:44:24,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:44:24,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:44:24,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:44:24,315 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 117 [2021-06-11 06:44:24,316 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 25 transitions, 119 flow. Second operand has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 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 06:44:24,316 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:44:24,316 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 117 [2021-06-11 06:44:24,316 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:44:24,337 INFO L129 PetriNetUnfolder]: 23/86 cut-off events. [2021-06-11 06:44:24,337 INFO L130 PetriNetUnfolder]: For 50/84 co-relation queries the response was YES. [2021-06-11 06:44:24,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 86 events. 23/86 cut-off events. For 50/84 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 324 event pairs, 3 based on Foata normal form. 12/97 useless extension candidates. Maximal degree in co-relation 252. Up to 35 conditions per place. [2021-06-11 06:44:24,339 INFO L132 encePairwiseOnDemand]: 110/117 looper letters, 12 selfloop transitions, 11 changer transitions 0/32 dead transitions. [2021-06-11 06:44:24,339 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 32 transitions, 203 flow [2021-06-11 06:44:24,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 06:44:24,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 06:44:24,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 361 transitions. [2021-06-11 06:44:24,340 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7713675213675214 [2021-06-11 06:44:24,340 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 361 transitions. [2021-06-11 06:44:24,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 361 transitions. [2021-06-11 06:44:24,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:44:24,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 361 transitions. [2021-06-11 06:44:24,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 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 06:44:24,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 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 06:44:24,343 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 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 06:44:24,343 INFO L185 Difference]: Start difference. First operand has 30 places, 25 transitions, 119 flow. Second operand 4 states and 361 transitions. [2021-06-11 06:44:24,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 32 transitions, 203 flow [2021-06-11 06:44:24,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 32 transitions, 193 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 06:44:24,345 INFO L241 Difference]: Finished difference. Result has 33 places, 30 transitions, 178 flow [2021-06-11 06:44:24,345 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=178, PETRI_PLACES=33, PETRI_TRANSITIONS=30} [2021-06-11 06:44:24,345 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2021-06-11 06:44:24,345 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:44:24,346 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 30 transitions, 178 flow [2021-06-11 06:44:24,346 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 30 transitions, 178 flow [2021-06-11 06:44:24,346 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 30 transitions, 178 flow [2021-06-11 06:44:24,350 INFO L129 PetriNetUnfolder]: 23/86 cut-off events. [2021-06-11 06:44:24,350 INFO L130 PetriNetUnfolder]: For 82/96 co-relation queries the response was YES. [2021-06-11 06:44:24,352 INFO L84 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 86 events. 23/86 cut-off events. For 82/96 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 325 event pairs, 2 based on Foata normal form. 3/87 useless extension candidates. Maximal degree in co-relation 245. Up to 35 conditions per place. [2021-06-11 06:44:24,353 INFO L151 LiptonReduction]: Number of co-enabled transitions 154 [2021-06-11 06:44:24,357 INFO L163 LiptonReduction]: Checked pairs total: 22 [2021-06-11 06:44:24,357 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:44:24,357 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-06-11 06:44:24,360 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 30 transitions, 178 flow [2021-06-11 06:44:24,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 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 06:44:24,360 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:44:24,360 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:44:24,360 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 06:44:24,360 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:44:24,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:44:24,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1723058562, now seen corresponding path program 1 times [2021-06-11 06:44:24,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:44:24,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869848789] [2021-06-11 06:44:24,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:44:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:44:24,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:24,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:44:24,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:24,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:44:24,416 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:44:24,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:44:24,421 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 06:44:24,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869848789] [2021-06-11 06:44:24,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:44:24,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:44:24,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957485133] [2021-06-11 06:44:24,422 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:44:24,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:44:24,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:44:24,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:44:24,423 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 117 [2021-06-11 06:44:24,423 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 30 transitions, 178 flow. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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 06:44:24,423 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:44:24,423 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 117 [2021-06-11 06:44:24,423 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:44:24,440 INFO L129 PetriNetUnfolder]: 19/84 cut-off events. [2021-06-11 06:44:24,440 INFO L130 PetriNetUnfolder]: For 105/169 co-relation queries the response was YES. [2021-06-11 06:44:24,440 INFO L84 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 84 events. 19/84 cut-off events. For 105/169 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 339 event pairs, 2 based on Foata normal form. 13/95 useless extension candidates. Maximal degree in co-relation 287. Up to 32 conditions per place. [2021-06-11 06:44:24,440 INFO L132 encePairwiseOnDemand]: 110/117 looper letters, 8 selfloop transitions, 14 changer transitions 0/31 dead transitions. [2021-06-11 06:44:24,441 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 31 transitions, 229 flow [2021-06-11 06:44:24,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 06:44:24,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 06:44:24,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2021-06-11 06:44:24,442 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7670940170940171 [2021-06-11 06:44:24,442 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 359 transitions. [2021-06-11 06:44:24,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 359 transitions. [2021-06-11 06:44:24,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:44:24,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 359 transitions. [2021-06-11 06:44:24,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 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 06:44:24,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 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 06:44:24,444 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 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 06:44:24,444 INFO L185 Difference]: Start difference. First operand has 33 places, 30 transitions, 178 flow. Second operand 4 states and 359 transitions. [2021-06-11 06:44:24,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 31 transitions, 229 flow [2021-06-11 06:44:24,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 31 transitions, 229 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 06:44:24,446 INFO L241 Difference]: Finished difference. Result has 38 places, 31 transitions, 235 flow [2021-06-11 06:44:24,446 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=235, PETRI_PLACES=38, PETRI_TRANSITIONS=31} [2021-06-11 06:44:24,446 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 12 predicate places. [2021-06-11 06:44:24,447 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:44:24,447 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 31 transitions, 235 flow [2021-06-11 06:44:24,447 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 31 transitions, 235 flow [2021-06-11 06:44:24,447 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 31 transitions, 235 flow [2021-06-11 06:44:24,452 INFO L129 PetriNetUnfolder]: 19/84 cut-off events. [2021-06-11 06:44:24,452 INFO L130 PetriNetUnfolder]: For 151/166 co-relation queries the response was YES. [2021-06-11 06:44:24,452 INFO L84 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 84 events. 19/84 cut-off events. For 151/166 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 366 event pairs, 1 based on Foata normal form. 1/83 useless extension candidates. Maximal degree in co-relation 288. Up to 32 conditions per place. [2021-06-11 06:44:24,453 INFO L151 LiptonReduction]: Number of co-enabled transitions 160 [2021-06-11 06:44:24,454 INFO L163 LiptonReduction]: Checked pairs total: 23 [2021-06-11 06:44:24,455 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:44:24,455 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-06-11 06:44:24,455 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 31 transitions, 235 flow [2021-06-11 06:44:24,455 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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 06:44:24,455 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:44:24,455 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:44:24,456 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-11 06:44:24,456 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:44:24,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:44:24,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1197948411, now seen corresponding path program 1 times [2021-06-11 06:44:24,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:44:24,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827497418] [2021-06-11 06:44:24,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:44:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:44:24,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:24,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:44:24,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:24,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:44:24,486 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 06:44:24,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827497418] [2021-06-11 06:44:24,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:44:24,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:44:24,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017112526] [2021-06-11 06:44:24,487 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:44:24,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:44:24,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:44:24,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:44:24,488 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 117 [2021-06-11 06:44:24,488 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 235 flow. Second operand has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 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 06:44:24,488 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:44:24,488 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 117 [2021-06-11 06:44:24,489 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:44:24,509 INFO L129 PetriNetUnfolder]: 17/100 cut-off events. [2021-06-11 06:44:24,509 INFO L130 PetriNetUnfolder]: For 296/337 co-relation queries the response was YES. [2021-06-11 06:44:24,509 INFO L84 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 100 events. 17/100 cut-off events. For 296/337 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 483 event pairs, 0 based on Foata normal form. 14/113 useless extension candidates. Maximal degree in co-relation 374. Up to 33 conditions per place. [2021-06-11 06:44:24,509 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 6 selfloop transitions, 6 changer transitions 7/35 dead transitions. [2021-06-11 06:44:24,509 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 35 transitions, 311 flow [2021-06-11 06:44:24,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 06:44:24,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 06:44:24,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2021-06-11 06:44:24,511 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7927350427350427 [2021-06-11 06:44:24,511 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 371 transitions. [2021-06-11 06:44:24,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 371 transitions. [2021-06-11 06:44:24,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:44:24,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 371 transitions. [2021-06-11 06:44:24,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 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 06:44:24,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 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 06:44:24,513 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 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 06:44:24,513 INFO L185 Difference]: Start difference. First operand has 38 places, 31 transitions, 235 flow. Second operand 4 states and 371 transitions. [2021-06-11 06:44:24,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 35 transitions, 311 flow [2021-06-11 06:44:24,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 35 transitions, 299 flow, removed 6 selfloop flow, removed 0 redundant places. [2021-06-11 06:44:24,515 INFO L241 Difference]: Finished difference. Result has 42 places, 27 transitions, 211 flow [2021-06-11 06:44:24,515 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=211, PETRI_PLACES=42, PETRI_TRANSITIONS=27} [2021-06-11 06:44:24,515 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 16 predicate places. [2021-06-11 06:44:24,515 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:44:24,515 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 27 transitions, 211 flow [2021-06-11 06:44:24,515 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 27 transitions, 211 flow [2021-06-11 06:44:24,515 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 27 transitions, 211 flow [2021-06-11 06:44:24,519 INFO L129 PetriNetUnfolder]: 8/57 cut-off events. [2021-06-11 06:44:24,519 INFO L130 PetriNetUnfolder]: For 149/155 co-relation queries the response was YES. [2021-06-11 06:44:24,519 INFO L84 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 57 events. 8/57 cut-off events. For 149/155 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 206 event pairs, 1 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 206. Up to 19 conditions per place. [2021-06-11 06:44:24,520 INFO L151 LiptonReduction]: Number of co-enabled transitions 140 [2021-06-11 06:44:24,521 INFO L163 LiptonReduction]: Checked pairs total: 19 [2021-06-11 06:44:24,521 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:44:24,521 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-06-11 06:44:24,522 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 27 transitions, 211 flow [2021-06-11 06:44:24,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 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 06:44:24,522 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:44:24,522 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:44:24,522 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-11 06:44:24,522 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:44:24,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:44:24,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1528453577, now seen corresponding path program 2 times [2021-06-11 06:44:24,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:44:24,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173957085] [2021-06-11 06:44:24,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:44:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:44:24,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:24,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:44:24,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:24,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 06:44:24,548 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 06:44:24,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173957085] [2021-06-11 06:44:24,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:44:24,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:44:24,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160110177] [2021-06-11 06:44:24,549 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:44:24,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:44:24,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:44:24,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:44:24,550 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 117 [2021-06-11 06:44:24,550 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 27 transitions, 211 flow. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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 06:44:24,550 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:44:24,550 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 117 [2021-06-11 06:44:24,550 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:44:24,581 INFO L129 PetriNetUnfolder]: 95/231 cut-off events. [2021-06-11 06:44:24,581 INFO L130 PetriNetUnfolder]: For 777/845 co-relation queries the response was YES. [2021-06-11 06:44:24,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 671 conditions, 231 events. 95/231 cut-off events. For 777/845 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1240 event pairs, 33 based on Foata normal form. 26/239 useless extension candidates. Maximal degree in co-relation 648. Up to 145 conditions per place. [2021-06-11 06:44:24,582 INFO L132 encePairwiseOnDemand]: 111/117 looper letters, 5 selfloop transitions, 7 changer transitions 4/37 dead transitions. [2021-06-11 06:44:24,582 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 37 transitions, 263 flow [2021-06-11 06:44:24,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 06:44:24,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 06:44:24,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 448 transitions. [2021-06-11 06:44:24,584 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7658119658119659 [2021-06-11 06:44:24,584 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 448 transitions. [2021-06-11 06:44:24,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 448 transitions. [2021-06-11 06:44:24,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:44:24,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 448 transitions. [2021-06-11 06:44:24,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 89.6) internal successors, (448), 5 states have internal predecessors, (448), 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 06:44:24,586 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 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 06:44:24,586 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 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 06:44:24,586 INFO L185 Difference]: Start difference. First operand has 42 places, 27 transitions, 211 flow. Second operand 5 states and 448 transitions. [2021-06-11 06:44:24,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 37 transitions, 263 flow [2021-06-11 06:44:24,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 37 transitions, 239 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-06-11 06:44:24,588 INFO L241 Difference]: Finished difference. Result has 45 places, 33 transitions, 237 flow [2021-06-11 06:44:24,588 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=237, PETRI_PLACES=45, PETRI_TRANSITIONS=33} [2021-06-11 06:44:24,588 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 19 predicate places. [2021-06-11 06:44:24,588 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:44:24,588 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 33 transitions, 237 flow [2021-06-11 06:44:24,588 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 33 transitions, 237 flow [2021-06-11 06:44:24,589 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 33 transitions, 237 flow [2021-06-11 06:44:24,596 INFO L129 PetriNetUnfolder]: 28/140 cut-off events. [2021-06-11 06:44:24,597 INFO L130 PetriNetUnfolder]: For 369/411 co-relation queries the response was YES. [2021-06-11 06:44:24,597 INFO L84 FinitePrefix]: Finished finitePrefix Result has 495 conditions, 140 events. 28/140 cut-off events. For 369/411 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 898 event pairs, 8 based on Foata normal form. 2/132 useless extension candidates. Maximal degree in co-relation 473. Up to 53 conditions per place. [2021-06-11 06:44:24,598 INFO L151 LiptonReduction]: Number of co-enabled transitions 236 [2021-06-11 06:44:24,599 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:44:24,599 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:44:24,599 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-06-11 06:44:24,600 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 33 transitions, 237 flow [2021-06-11 06:44:24,600 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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 06:44:24,600 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:44:24,600 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:44:24,600 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-11 06:44:24,600 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:44:24,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:44:24,601 INFO L82 PathProgramCache]: Analyzing trace with hash -72312274, now seen corresponding path program 1 times [2021-06-11 06:44:24,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:44:24,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408831653] [2021-06-11 06:44:24,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:44:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:44:24,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:24,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:44:24,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:24,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:44:24,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:24,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 06:44:24,626 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 06:44:24,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408831653] [2021-06-11 06:44:24,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:44:24,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:44:24,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238678265] [2021-06-11 06:44:24,627 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 06:44:24,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:44:24,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 06:44:24,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 06:44:24,628 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 117 [2021-06-11 06:44:24,628 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 33 transitions, 237 flow. Second operand has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 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 06:44:24,628 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:44:24,628 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 117 [2021-06-11 06:44:24,628 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:44:24,670 INFO L129 PetriNetUnfolder]: 54/174 cut-off events. [2021-06-11 06:44:24,670 INFO L130 PetriNetUnfolder]: For 735/942 co-relation queries the response was YES. [2021-06-11 06:44:24,671 INFO L84 FinitePrefix]: Finished finitePrefix Result has 668 conditions, 174 events. 54/174 cut-off events. For 735/942 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 978 event pairs, 4 based on Foata normal form. 77/241 useless extension candidates. Maximal degree in co-relation 644. Up to 76 conditions per place. [2021-06-11 06:44:24,671 INFO L132 encePairwiseOnDemand]: 111/117 looper letters, 5 selfloop transitions, 10 changer transitions 11/43 dead transitions. [2021-06-11 06:44:24,671 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 43 transitions, 327 flow [2021-06-11 06:44:24,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 06:44:24,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 06:44:24,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 626 transitions. [2021-06-11 06:44:24,673 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7643467643467643 [2021-06-11 06:44:24,673 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 626 transitions. [2021-06-11 06:44:24,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 626 transitions. [2021-06-11 06:44:24,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:44:24,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 626 transitions. [2021-06-11 06:44:24,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 89.42857142857143) internal successors, (626), 7 states have internal predecessors, (626), 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 06:44:24,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 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 06:44:24,675 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 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 06:44:24,675 INFO L185 Difference]: Start difference. First operand has 45 places, 33 transitions, 237 flow. Second operand 7 states and 626 transitions. [2021-06-11 06:44:24,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 43 transitions, 327 flow [2021-06-11 06:44:24,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 43 transitions, 327 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 06:44:24,677 INFO L241 Difference]: Finished difference. Result has 54 places, 32 transitions, 271 flow [2021-06-11 06:44:24,677 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=271, PETRI_PLACES=54, PETRI_TRANSITIONS=32} [2021-06-11 06:44:24,678 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 28 predicate places. [2021-06-11 06:44:24,678 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:44:24,678 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 32 transitions, 271 flow [2021-06-11 06:44:24,678 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 32 transitions, 271 flow [2021-06-11 06:44:24,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 32 transitions, 271 flow [2021-06-11 06:44:24,685 INFO L129 PetriNetUnfolder]: 29/105 cut-off events. [2021-06-11 06:44:24,685 INFO L130 PetriNetUnfolder]: For 479/538 co-relation queries the response was YES. [2021-06-11 06:44:24,685 INFO L84 FinitePrefix]: Finished finitePrefix Result has 481 conditions, 105 events. 29/105 cut-off events. For 479/538 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 461 event pairs, 4 based on Foata normal form. 11/113 useless extension candidates. Maximal degree in co-relation 454. Up to 66 conditions per place. [2021-06-11 06:44:24,686 INFO L151 LiptonReduction]: Number of co-enabled transitions 156 [2021-06-11 06:44:24,687 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:44:24,687 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:44:24,687 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-06-11 06:44:24,688 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 32 transitions, 271 flow [2021-06-11 06:44:24,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 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 06:44:24,688 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:44:24,688 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:44:24,688 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-11 06:44:24,688 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:44:24,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:44:24,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1049838291, now seen corresponding path program 1 times [2021-06-11 06:44:24,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:44:24,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403077035] [2021-06-11 06:44:24,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:44:24,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:44:24,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:24,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:44:24,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:24,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:44:24,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:24,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:44:24,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:24,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 06:44:24,741 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 06:44:24,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403077035] [2021-06-11 06:44:24,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:44:24,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 06:44:24,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564267552] [2021-06-11 06:44:24,742 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 06:44:24,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:44:24,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 06:44:24,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-11 06:44:24,743 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 117 [2021-06-11 06:44:24,743 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 32 transitions, 271 flow. Second operand has 6 states, 6 states have (on average 86.83333333333333) internal successors, (521), 6 states have internal predecessors, (521), 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 06:44:24,743 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:44:24,743 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 117 [2021-06-11 06:44:24,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:44:24,808 INFO L129 PetriNetUnfolder]: 22/88 cut-off events. [2021-06-11 06:44:24,808 INFO L130 PetriNetUnfolder]: For 605/881 co-relation queries the response was YES. [2021-06-11 06:44:24,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 449 conditions, 88 events. 22/88 cut-off events. For 605/881 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 355 event pairs, 0 based on Foata normal form. 86/171 useless extension candidates. Maximal degree in co-relation 421. Up to 57 conditions per place. [2021-06-11 06:44:24,809 INFO L132 encePairwiseOnDemand]: 111/117 looper letters, 2 selfloop transitions, 10 changer transitions 14/36 dead transitions. [2021-06-11 06:44:24,809 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 36 transitions, 341 flow [2021-06-11 06:44:24,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 06:44:24,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 06:44:24,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 795 transitions. [2021-06-11 06:44:24,811 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7549857549857549 [2021-06-11 06:44:24,811 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 795 transitions. [2021-06-11 06:44:24,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 795 transitions. [2021-06-11 06:44:24,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:44:24,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 795 transitions. [2021-06-11 06:44:24,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 88.33333333333333) internal successors, (795), 9 states have internal predecessors, (795), 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 06:44:24,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 117.0) internal successors, (1170), 10 states have internal predecessors, (1170), 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 06:44:24,814 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 117.0) internal successors, (1170), 10 states have internal predecessors, (1170), 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 06:44:24,814 INFO L185 Difference]: Start difference. First operand has 53 places, 32 transitions, 271 flow. Second operand 9 states and 795 transitions. [2021-06-11 06:44:24,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 36 transitions, 341 flow [2021-06-11 06:44:24,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 36 transitions, 304 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-06-11 06:44:24,816 INFO L241 Difference]: Finished difference. Result has 58 places, 22 transitions, 188 flow [2021-06-11 06:44:24,816 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=188, PETRI_PLACES=58, PETRI_TRANSITIONS=22} [2021-06-11 06:44:24,817 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 32 predicate places. [2021-06-11 06:44:24,817 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:44:24,817 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 22 transitions, 188 flow [2021-06-11 06:44:24,817 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 22 transitions, 188 flow [2021-06-11 06:44:24,817 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 22 transitions, 188 flow [2021-06-11 06:44:24,819 INFO L129 PetriNetUnfolder]: 6/29 cut-off events. [2021-06-11 06:44:24,819 INFO L130 PetriNetUnfolder]: For 82/83 co-relation queries the response was YES. [2021-06-11 06:44:24,820 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 29 events. 6/29 cut-off events. For 82/83 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 1/30 useless extension candidates. Maximal degree in co-relation 113. Up to 13 conditions per place. [2021-06-11 06:44:24,820 INFO L151 LiptonReduction]: Number of co-enabled transitions 52 [2021-06-11 06:44:24,821 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:44:24,821 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:44:24,821 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4 [2021-06-11 06:44:24,821 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 22 transitions, 188 flow [2021-06-11 06:44:24,821 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 86.83333333333333) internal successors, (521), 6 states have internal predecessors, (521), 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 06:44:24,821 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:44:24,821 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:44:24,822 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-11 06:44:24,822 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:44:24,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:44:24,822 INFO L82 PathProgramCache]: Analyzing trace with hash -989031233, now seen corresponding path program 1 times [2021-06-11 06:44:24,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:44:24,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157390564] [2021-06-11 06:44:24,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:44:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:44:24,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:24,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:44:24,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:24,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:44:24,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:44:24,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:44:24,859 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:44:24,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:44:24,864 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 06:44:24,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157390564] [2021-06-11 06:44:24,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:44:24,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 06:44:24,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7484206] [2021-06-11 06:44:24,865 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 06:44:24,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:44:24,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 06:44:24,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-11 06:44:24,866 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 117 [2021-06-11 06:44:24,866 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 22 transitions, 188 flow. Second operand has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 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 06:44:24,866 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:44:24,866 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 117 [2021-06-11 06:44:24,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:44:24,879 INFO L129 PetriNetUnfolder]: 6/28 cut-off events. [2021-06-11 06:44:24,879 INFO L130 PetriNetUnfolder]: For 101/107 co-relation queries the response was YES. [2021-06-11 06:44:24,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 28 events. 6/28 cut-off events. For 101/107 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 6/34 useless extension candidates. Maximal degree in co-relation 120. Up to 13 conditions per place. [2021-06-11 06:44:24,879 INFO L132 encePairwiseOnDemand]: 111/117 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2021-06-11 06:44:24,879 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 22 transitions, 191 flow [2021-06-11 06:44:24,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-11 06:44:24,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-11 06:44:24,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 524 transitions. [2021-06-11 06:44:24,880 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7464387464387464 [2021-06-11 06:44:24,880 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 524 transitions. [2021-06-11 06:44:24,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 524 transitions. [2021-06-11 06:44:24,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:44:24,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 524 transitions. [2021-06-11 06:44:24,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.33333333333333) internal successors, (524), 6 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:44:24,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 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 06:44:24,883 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 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 06:44:24,884 INFO L185 Difference]: Start difference. First operand has 51 places, 22 transitions, 188 flow. Second operand 6 states and 524 transitions. [2021-06-11 06:44:24,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 22 transitions, 191 flow [2021-06-11 06:44:24,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 22 transitions, 109 flow, removed 11 selfloop flow, removed 18 redundant places. [2021-06-11 06:44:24,885 INFO L241 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2021-06-11 06:44:24,885 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2021-06-11 06:44:24,885 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 11 predicate places. [2021-06-11 06:44:24,885 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:44:24,885 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 0 transitions, 0 flow [2021-06-11 06:44:24,885 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 0 transitions, 0 flow [2021-06-11 06:44:24,885 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 06:44:24,885 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 06:44:24,885 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:44:24,886 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 06:44:24,886 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 06:44:24,886 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:44:24,886 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:44:24,886 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-06-11 06:44:24,886 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 06:44:24,887 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 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 06:44:24,887 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-11 06:44:24,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 06:44:24 BasicIcfg [2021-06-11 06:44:24,890 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 06:44:24,890 INFO L168 Benchmark]: Toolchain (without parser) took 4017.45 ms. Allocated memory was 400.6 MB in the beginning and 488.6 MB in the end (delta: 88.1 MB). Free memory was 362.5 MB in the beginning and 438.2 MB in the end (delta: -75.6 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.0 GB. [2021-06-11 06:44:24,890 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 400.6 MB. Free memory is still 380.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 06:44:24,891 INFO L168 Benchmark]: CACSL2BoogieTranslator took 420.01 ms. Allocated memory is still 400.6 MB. Free memory was 362.4 MB in the beginning and 362.5 MB in the end (delta: -101.0 kB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. [2021-06-11 06:44:24,891 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.09 ms. Allocated memory is still 400.6 MB. Free memory was 362.5 MB in the beginning and 360.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 06:44:24,891 INFO L168 Benchmark]: Boogie Preprocessor took 12.62 ms. Allocated memory is still 400.6 MB. Free memory was 360.4 MB in the beginning and 359.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 06:44:24,891 INFO L168 Benchmark]: RCFGBuilder took 298.16 ms. Allocated memory is still 400.6 MB. Free memory was 359.3 MB in the beginning and 335.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-11 06:44:24,892 INFO L168 Benchmark]: TraceAbstraction took 3258.36 ms. Allocated memory was 400.6 MB in the beginning and 488.6 MB in the end (delta: 88.1 MB). Free memory was 334.2 MB in the beginning and 438.2 MB in the end (delta: -104.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 06:44:24,894 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 400.6 MB. Free memory is still 380.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 420.01 ms. Allocated memory is still 400.6 MB. Free memory was 362.4 MB in the beginning and 362.5 MB in the end (delta: -101.0 kB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.09 ms. Allocated memory is still 400.6 MB. Free memory was 362.5 MB in the beginning and 360.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.62 ms. Allocated memory is still 400.6 MB. Free memory was 360.4 MB in the beginning and 359.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 298.16 ms. Allocated memory is still 400.6 MB. Free memory was 359.3 MB in the beginning and 335.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3258.36 ms. Allocated memory was 400.6 MB in the beginning and 488.6 MB in the end (delta: 88.1 MB). Free memory was 334.2 MB in the beginning and 438.2 MB in the end (delta: -104.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1976.9ms, 66 PlacesBefore, 26 PlacesAfterwards, 57 TransitionsBefore, 17 TransitionsAfterwards, 804 CoEnabledTransitionPairs, 6 FixpointIterations, 16 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 45 TotalNumberOfCompositions, 1516 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 909, positive: 838, positive conditional: 0, positive unconditional: 838, negative: 71, negative conditional: 0, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 600, positive: 564, positive conditional: 0, positive unconditional: 564, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 600, positive: 564, positive conditional: 0, positive unconditional: 564, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 600, positive: 557, positive conditional: 0, positive unconditional: 557, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 127, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 109, negative conditional: 0, negative unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 909, positive: 274, positive conditional: 0, positive unconditional: 274, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 600, unknown conditional: 0, unknown unconditional: 600] , Statistics on independence cache: Total cache size (in pairs): 1061, Positive cache size: 1025, Positive conditional cache size: 0, Positive unconditional cache size: 1025, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7ms, 24 PlacesBefore, 23 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 106 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 108 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 55, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 12, negative conditional: 0, negative unconditional: 12, 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: 55, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 1062, Positive cache size: 1026, Positive conditional cache size: 0, Positive unconditional cache size: 1026, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.7ms, 27 PlacesBefore, 27 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 118 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 13 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, 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: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 1063, Positive cache size: 1027, Positive conditional cache size: 0, Positive unconditional cache size: 1027, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.1ms, 28 PlacesBefore, 28 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 140 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 17 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, 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: 5, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 1064, Positive cache size: 1028, Positive conditional cache size: 0, Positive unconditional cache size: 1028, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.0ms, 30 PlacesBefore, 30 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 140 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 17 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, 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: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1064, Positive cache size: 1028, Positive conditional cache size: 0, Positive unconditional cache size: 1028, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.4ms, 33 PlacesBefore, 33 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 154 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 22 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , 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: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 1065, Positive cache size: 1029, Positive conditional cache size: 0, Positive unconditional cache size: 1029, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.7ms, 38 PlacesBefore, 38 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 160 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 23 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , 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: 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] , Statistics on independence cache: Total cache size (in pairs): 1065, Positive cache size: 1029, Positive conditional cache size: 0, Positive unconditional cache size: 1029, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.8ms, 42 PlacesBefore, 42 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 140 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 19 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, 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: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1065, Positive cache size: 1029, Positive conditional cache size: 0, Positive unconditional cache size: 1029, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.9ms, 45 PlacesBefore, 45 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 236 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): 1065, Positive cache size: 1029, Positive conditional cache size: 0, Positive unconditional cache size: 1029, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.2ms, 54 PlacesBefore, 53 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 156 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): 1065, Positive cache size: 1029, Positive conditional cache size: 0, Positive unconditional cache size: 1029, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.9ms, 58 PlacesBefore, 51 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 52 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): 1065, Positive cache size: 1029, Positive conditional cache size: 0, Positive unconditional cache size: 1029, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6ms, 37 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): 1065, Positive cache size: 1029, Positive conditional cache size: 0, Positive unconditional cache size: 1029, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3165.7ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 387.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2051.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 54 SDtfs, 22 SDslu, 22 SDs, 0 SdLazy, 131 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 92.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 89.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=271occurred in iteration=9, InterpolantAutomatonStates: 50, 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: 13.2ms SsaConstructionTime, 116.1ms SatisfiabilityAnalysisTime, 353.1ms InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 453 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...