/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 10:32:07,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 10:32:07,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 10:32:07,984 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 10:32:07,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 10:32:07,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 10:32:07,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 10:32:07,987 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 10:32:07,988 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 10:32:07,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 10:32:07,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 10:32:07,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 10:32:07,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 10:32:07,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 10:32:07,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 10:32:07,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 10:32:07,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 10:32:07,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 10:32:07,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 10:32:07,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 10:32:07,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 10:32:07,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 10:32:07,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 10:32:07,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 10:32:08,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 10:32:08,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 10:32:08,002 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 10:32:08,002 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 10:32:08,003 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 10:32:08,004 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 10:32:08,004 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 10:32:08,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 10:32:08,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 10:32:08,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 10:32:08,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 10:32:08,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 10:32:08,006 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 10:32:08,021 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 10:32:08,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 10:32:08,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 10:32:08,022 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 10:32:08,023 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 10:32:08,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 10:32:08,023 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 10:32:08,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 10:32:08,023 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 10:32:08,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 10:32:08,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 10:32:08,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 10:32:08,024 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 10:32:08,024 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 10:32:08,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 10:32:08,024 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 10:32:08,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 10:32:08,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 10:32:08,024 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 10:32:08,024 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 10:32:08,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 10:32:08,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:32:08,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 10:32:08,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 10:32:08,025 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 10:32:08,025 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 10:32:08,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 10:32:08,025 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 10:32:08,026 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 10:32:08,026 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 10:32:08,026 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 10:32:08,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 10:32:08,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 10:32:08,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 10:32:08,259 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 10:32:08,260 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 10:32:08,260 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2021-03-26 10:32:08,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08d49eeb6/4a413268c54e4a1eb6109c2169790591/FLAGfdebd7182 [2021-03-26 10:32:08,864 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 10:32:08,864 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2021-03-26 10:32:08,876 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08d49eeb6/4a413268c54e4a1eb6109c2169790591/FLAGfdebd7182 [2021-03-26 10:32:09,304 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08d49eeb6/4a413268c54e4a1eb6109c2169790591 [2021-03-26 10:32:09,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 10:32:09,307 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 10:32:09,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 10:32:09,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 10:32:09,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 10:32:09,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:32:09" (1/1) ... [2021-03-26 10:32:09,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@211b6081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:32:09, skipping insertion in model container [2021-03-26 10:32:09,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:32:09" (1/1) ... [2021-03-26 10:32:09,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 10:32:09,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 10:32:09,437 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/safe011_tso.opt.i[949,962] [2021-03-26 10:32:09,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:32:09,564 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 10:32:09,572 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/safe011_tso.opt.i[949,962] [2021-03-26 10:32:09,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:32:09,642 INFO L208 MainTranslator]: Completed translation [2021-03-26 10:32:09,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:32:09 WrapperNode [2021-03-26 10:32:09,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 10:32:09,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 10:32:09,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 10:32:09,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 10:32:09,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:32:09" (1/1) ... [2021-03-26 10:32:09,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:32:09" (1/1) ... [2021-03-26 10:32:09,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 10:32:09,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 10:32:09,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 10:32:09,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 10:32:09,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:32:09" (1/1) ... [2021-03-26 10:32:09,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:32:09" (1/1) ... [2021-03-26 10:32:09,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:32:09" (1/1) ... [2021-03-26 10:32:09,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:32:09" (1/1) ... [2021-03-26 10:32:09,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:32:09" (1/1) ... [2021-03-26 10:32:09,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:32:09" (1/1) ... [2021-03-26 10:32:09,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:32:09" (1/1) ... [2021-03-26 10:32:09,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 10:32:09,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 10:32:09,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 10:32:09,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 10:32:09,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:32:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:32:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 10:32:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 10:32:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 10:32:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 10:32:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 10:32:09,721 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 10:32:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 10:32:09,721 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 10:32:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 10:32:09,722 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 10:32:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 10:32:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 10:32:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 10:32:09,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 10:32:09,723 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 10:32:09,984 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 10:32:09,984 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 10:32:09,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:32:09 BoogieIcfgContainer [2021-03-26 10:32:09,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 10:32:09,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 10:32:09,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 10:32:09,988 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 10:32:09,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 10:32:09" (1/3) ... [2021-03-26 10:32:09,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3190a0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:32:09, skipping insertion in model container [2021-03-26 10:32:09,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:32:09" (2/3) ... [2021-03-26 10:32:09,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3190a0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:32:09, skipping insertion in model container [2021-03-26 10:32:09,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:32:09" (3/3) ... [2021-03-26 10:32:09,990 INFO L111 eAbstractionObserver]: Analyzing ICFG safe011_tso.opt.i [2021-03-26 10:32:09,993 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 10:32:09,997 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 10:32:09,997 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 10:32:10,024 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,024 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,024 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,024 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,024 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,024 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,024 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,024 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,025 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,025 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,025 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,025 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,025 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,026 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,026 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,026 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,026 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,026 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,026 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,026 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,026 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,026 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,026 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,027 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,027 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,027 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,028 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,028 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,028 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,028 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,029 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,029 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,029 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,030 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,031 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,032 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,032 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,032 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,036 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,036 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,037 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,037 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,041 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,041 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,041 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,041 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:32:10,043 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:32:10,055 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 10:32:10,075 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:32:10,075 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:32:10,076 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:32:10,076 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:32:10,076 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:32:10,076 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:32:10,076 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:32:10,076 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:32:10,085 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-03-26 10:32:10,129 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-03-26 10:32:10,129 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:32:10,133 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-26 10:32:10,133 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-03-26 10:32:10,140 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-03-26 10:32:10,141 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:32:10,152 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-03-26 10:32:10,153 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-03-26 10:32:10,154 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-03-26 10:32:10,162 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-03-26 10:32:10,162 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:32:10,163 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-26 10:32:10,164 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-26 10:32:11,110 INFO L154 LiptonReduction]: Checked pairs total: 996 [2021-03-26 10:32:11,110 INFO L156 LiptonReduction]: Total number of compositions: 37 [2021-03-26 10:32:11,111 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 971 [2021-03-26 10:32:11,118 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-26 10:32:11,118 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:32:11,118 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:32:11,119 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:32:11,119 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:32:11,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:32:11,122 INFO L82 PathProgramCache]: Analyzing trace with hash -397059577, now seen corresponding path program 1 times [2021-03-26 10:32:11,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:32:11,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17119969] [2021-03-26 10:32:11,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:32:11,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:32:11,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:32:11,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:32:11,322 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 10:32:11,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:32:11,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:32:11,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17119969] [2021-03-26 10:32:11,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:32:11,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:32:11,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140125331] [2021-03-26 10:32:11,339 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:32:11,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:32:11,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:32:11,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:32:11,348 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 111 [2021-03-26 10:32:11,350 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:11,350 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:32:11,350 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 111 [2021-03-26 10:32:11,350 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:32:11,377 INFO L129 PetriNetUnfolder]: 45/151 cut-off events. [2021-03-26 10:32:11,378 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:32:11,378 INFO L84 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 151 events. 45/151 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 687 event pairs, 17 based on Foata normal form. 5/142 useless extension candidates. Maximal degree in co-relation 243. Up to 62 conditions per place. [2021-03-26 10:32:11,380 INFO L132 encePairwiseOnDemand]: 104/111 looper letters, 6 selfloop transitions, 6 changer transitions 0/27 dead transitions. [2021-03-26 10:32:11,380 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 27 transitions, 87 flow [2021-03-26 10:32:11,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:32:11,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:32:11,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 274 transitions. [2021-03-26 10:32:11,388 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8228228228228228 [2021-03-26 10:32:11,388 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 274 transitions. [2021-03-26 10:32:11,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 274 transitions. [2021-03-26 10:32:11,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:32:11,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 274 transitions. [2021-03-26 10:32:11,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:11,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:11,396 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:11,397 INFO L185 Difference]: Start difference. First operand has 32 places, 22 transitions, 53 flow. Second operand 3 states and 274 transitions. [2021-03-26 10:32:11,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 27 transitions, 87 flow [2021-03-26 10:32:11,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 27 transitions, 84 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 10:32:11,400 INFO L241 Difference]: Finished difference. Result has 33 places, 27 transitions, 96 flow [2021-03-26 10:32:11,401 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=33, PETRI_TRANSITIONS=27} [2021-03-26 10:32:11,402 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2021-03-26 10:32:11,402 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:32:11,402 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 27 transitions, 96 flow [2021-03-26 10:32:11,402 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 27 transitions, 96 flow [2021-03-26 10:32:11,402 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 27 transitions, 96 flow [2021-03-26 10:32:11,414 INFO L129 PetriNetUnfolder]: 45/143 cut-off events. [2021-03-26 10:32:11,414 INFO L130 PetriNetUnfolder]: For 14/18 co-relation queries the response was YES. [2021-03-26 10:32:11,415 INFO L84 FinitePrefix]: Finished finitePrefix Result has 292 conditions, 143 events. 45/143 cut-off events. For 14/18 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 680 event pairs, 17 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 280. Up to 62 conditions per place. [2021-03-26 10:32:11,416 INFO L142 LiptonReduction]: Number of co-enabled transitions 202 [2021-03-26 10:32:11,860 INFO L154 LiptonReduction]: Checked pairs total: 309 [2021-03-26 10:32:11,860 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 10:32:11,860 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 458 [2021-03-26 10:32:11,861 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 23 transitions, 88 flow [2021-03-26 10:32:11,862 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:11,862 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:32:11,862 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:32:11,862 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 10:32:11,862 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:32:11,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:32:11,862 INFO L82 PathProgramCache]: Analyzing trace with hash 576054377, now seen corresponding path program 1 times [2021-03-26 10:32:11,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:32:11,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136538928] [2021-03-26 10:32:11,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:32:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:32:11,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:32:11,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:32:11,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:32:11,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:32:11,911 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 10:32:11,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:32:11,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:32:11,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136538928] [2021-03-26 10:32:11,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:32:11,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:32:11,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701758387] [2021-03-26 10:32:11,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:32:11,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:32:11,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:32:11,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:32:11,919 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 115 [2021-03-26 10:32:11,920 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 23 transitions, 88 flow. Second operand has 4 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) [2021-03-26 10:32:11,920 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:32:11,920 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 115 [2021-03-26 10:32:11,920 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:32:11,948 INFO L129 PetriNetUnfolder]: 36/116 cut-off events. [2021-03-26 10:32:11,949 INFO L130 PetriNetUnfolder]: For 37/102 co-relation queries the response was YES. [2021-03-26 10:32:11,949 INFO L84 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 116 events. 36/116 cut-off events. For 37/102 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 484 event pairs, 4 based on Foata normal form. 1/113 useless extension candidates. Maximal degree in co-relation 313. Up to 49 conditions per place. [2021-03-26 10:32:11,950 INFO L132 encePairwiseOnDemand]: 108/115 looper letters, 10 selfloop transitions, 7 changer transitions 0/28 dead transitions. [2021-03-26 10:32:11,950 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 28 transitions, 148 flow [2021-03-26 10:32:11,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:32:11,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:32:11,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2021-03-26 10:32:11,952 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8065217391304348 [2021-03-26 10:32:11,952 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 371 transitions. [2021-03-26 10:32:11,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 371 transitions. [2021-03-26 10:32:11,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:32:11,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 371 transitions. [2021-03-26 10:32:11,953 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) [2021-03-26 10:32:11,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:11,955 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:11,955 INFO L185 Difference]: Start difference. First operand has 29 places, 23 transitions, 88 flow. Second operand 4 states and 371 transitions. [2021-03-26 10:32:11,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 28 transitions, 148 flow [2021-03-26 10:32:11,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 28 transitions, 130 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:32:11,956 INFO L241 Difference]: Finished difference. Result has 33 places, 26 transitions, 124 flow [2021-03-26 10:32:11,956 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=124, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2021-03-26 10:32:11,957 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2021-03-26 10:32:11,957 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:32:11,957 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 26 transitions, 124 flow [2021-03-26 10:32:11,957 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 26 transitions, 124 flow [2021-03-26 10:32:11,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 26 transitions, 124 flow [2021-03-26 10:32:11,964 INFO L129 PetriNetUnfolder]: 36/126 cut-off events. [2021-03-26 10:32:11,964 INFO L130 PetriNetUnfolder]: For 67/73 co-relation queries the response was YES. [2021-03-26 10:32:11,964 INFO L84 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 126 events. 36/126 cut-off events. For 67/73 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 581 event pairs, 7 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 298. Up to 49 conditions per place. [2021-03-26 10:32:11,965 INFO L142 LiptonReduction]: Number of co-enabled transitions 158 [2021-03-26 10:32:12,081 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-26 10:32:12,265 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-26 10:32:12,327 INFO L154 LiptonReduction]: Checked pairs total: 178 [2021-03-26 10:32:12,327 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:32:12,327 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 370 [2021-03-26 10:32:12,328 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 25 transitions, 122 flow [2021-03-26 10:32:12,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 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) [2021-03-26 10:32:12,328 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:32:12,328 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:32:12,328 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 10:32:12,328 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:32:12,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:32:12,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1898554067, now seen corresponding path program 1 times [2021-03-26 10:32:12,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:32:12,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882717107] [2021-03-26 10:32:12,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:32:12,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:32:12,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:32:12,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:32:12,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:32:12,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882717107] [2021-03-26 10:32:12,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:32:12,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 10:32:12,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6519039] [2021-03-26 10:32:12,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:32:12,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:32:12,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:32:12,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:32:12,356 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 116 [2021-03-26 10:32:12,356 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,356 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:32:12,356 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 116 [2021-03-26 10:32:12,356 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:32:12,367 INFO L129 PetriNetUnfolder]: 25/99 cut-off events. [2021-03-26 10:32:12,367 INFO L130 PetriNetUnfolder]: For 95/134 co-relation queries the response was YES. [2021-03-26 10:32:12,367 INFO L84 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 99 events. 25/99 cut-off events. For 95/134 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 424 event pairs, 2 based on Foata normal form. 5/101 useless extension candidates. Maximal degree in co-relation 267. Up to 38 conditions per place. [2021-03-26 10:32:12,368 INFO L132 encePairwiseOnDemand]: 112/116 looper letters, 7 selfloop transitions, 7 changer transitions 0/31 dead transitions. [2021-03-26 10:32:12,368 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 31 transitions, 186 flow [2021-03-26 10:32:12,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:32:12,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:32:12,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2021-03-26 10:32:12,369 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8735632183908046 [2021-03-26 10:32:12,369 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2021-03-26 10:32:12,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2021-03-26 10:32:12,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:32:12,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2021-03-26 10:32:12,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,371 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,371 INFO L185 Difference]: Start difference. First operand has 32 places, 25 transitions, 122 flow. Second operand 3 states and 304 transitions. [2021-03-26 10:32:12,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 31 transitions, 186 flow [2021-03-26 10:32:12,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 31 transitions, 183 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:32:12,372 INFO L241 Difference]: Finished difference. Result has 34 places, 31 transitions, 190 flow [2021-03-26 10:32:12,372 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=34, PETRI_TRANSITIONS=31} [2021-03-26 10:32:12,373 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places. [2021-03-26 10:32:12,373 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:32:12,373 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 31 transitions, 190 flow [2021-03-26 10:32:12,373 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 31 transitions, 190 flow [2021-03-26 10:32:12,373 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 31 transitions, 190 flow [2021-03-26 10:32:12,378 INFO L129 PetriNetUnfolder]: 25/101 cut-off events. [2021-03-26 10:32:12,378 INFO L130 PetriNetUnfolder]: For 66/75 co-relation queries the response was YES. [2021-03-26 10:32:12,378 INFO L84 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 101 events. 25/101 cut-off events. For 66/75 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 448 event pairs, 3 based on Foata normal form. 1/100 useless extension candidates. Maximal degree in co-relation 280. Up to 38 conditions per place. [2021-03-26 10:32:12,379 INFO L142 LiptonReduction]: Number of co-enabled transitions 184 [2021-03-26 10:32:12,388 INFO L154 LiptonReduction]: Checked pairs total: 138 [2021-03-26 10:32:12,388 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:32:12,388 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-03-26 10:32:12,389 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 31 transitions, 190 flow [2021-03-26 10:32:12,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,389 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:32:12,389 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:32:12,390 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 10:32:12,390 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:32:12,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:32:12,390 INFO L82 PathProgramCache]: Analyzing trace with hash -371024681, now seen corresponding path program 1 times [2021-03-26 10:32:12,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:32:12,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143573605] [2021-03-26 10:32:12,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:32:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:32:12,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:32:12,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:32:12,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:32:12,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143573605] [2021-03-26 10:32:12,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:32:12,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 10:32:12,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372217019] [2021-03-26 10:32:12,419 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:32:12,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:32:12,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:32:12,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:32:12,420 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 116 [2021-03-26 10:32:12,421 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 31 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,421 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:32:12,421 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 116 [2021-03-26 10:32:12,421 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:32:12,433 INFO L129 PetriNetUnfolder]: 23/94 cut-off events. [2021-03-26 10:32:12,433 INFO L130 PetriNetUnfolder]: For 117/157 co-relation queries the response was YES. [2021-03-26 10:32:12,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 94 events. 23/94 cut-off events. For 117/157 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 389 event pairs, 2 based on Foata normal form. 4/95 useless extension candidates. Maximal degree in co-relation 289. Up to 35 conditions per place. [2021-03-26 10:32:12,435 INFO L132 encePairwiseOnDemand]: 112/116 looper letters, 5 selfloop transitions, 4 changer transitions 0/33 dead transitions. [2021-03-26 10:32:12,435 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 33 transitions, 220 flow [2021-03-26 10:32:12,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:32:12,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:32:12,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2021-03-26 10:32:12,436 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8735632183908046 [2021-03-26 10:32:12,436 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2021-03-26 10:32:12,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2021-03-26 10:32:12,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:32:12,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2021-03-26 10:32:12,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,438 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,438 INFO L185 Difference]: Start difference. First operand has 34 places, 31 transitions, 190 flow. Second operand 3 states and 304 transitions. [2021-03-26 10:32:12,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 33 transitions, 220 flow [2021-03-26 10:32:12,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 33 transitions, 213 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:32:12,441 INFO L241 Difference]: Finished difference. Result has 36 places, 33 transitions, 213 flow [2021-03-26 10:32:12,441 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=213, PETRI_PLACES=36, PETRI_TRANSITIONS=33} [2021-03-26 10:32:12,442 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 4 predicate places. [2021-03-26 10:32:12,442 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:32:12,442 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 33 transitions, 213 flow [2021-03-26 10:32:12,443 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 33 transitions, 213 flow [2021-03-26 10:32:12,443 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 33 transitions, 213 flow [2021-03-26 10:32:12,448 INFO L129 PetriNetUnfolder]: 23/96 cut-off events. [2021-03-26 10:32:12,448 INFO L130 PetriNetUnfolder]: For 88/97 co-relation queries the response was YES. [2021-03-26 10:32:12,448 INFO L84 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 96 events. 23/96 cut-off events. For 88/97 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 421 event pairs, 2 based on Foata normal form. 1/95 useless extension candidates. Maximal degree in co-relation 281. Up to 35 conditions per place. [2021-03-26 10:32:12,449 INFO L142 LiptonReduction]: Number of co-enabled transitions 196 [2021-03-26 10:32:12,451 INFO L154 LiptonReduction]: Checked pairs total: 178 [2021-03-26 10:32:12,451 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:32:12,451 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-26 10:32:12,451 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 33 transitions, 213 flow [2021-03-26 10:32:12,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,452 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:32:12,452 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:32:12,452 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 10:32:12,452 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:32:12,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:32:12,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1126245919, now seen corresponding path program 1 times [2021-03-26 10:32:12,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:32:12,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944901667] [2021-03-26 10:32:12,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:32:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:32:12,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:32:12,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:32:12,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:32:12,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:32:12,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:32:12,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944901667] [2021-03-26 10:32:12,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:32:12,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:32:12,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804717209] [2021-03-26 10:32:12,477 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:32:12,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:32:12,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:32:12,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:32:12,478 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 116 [2021-03-26 10:32:12,479 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 33 transitions, 213 flow. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,479 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:32:12,479 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 116 [2021-03-26 10:32:12,479 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:32:12,488 INFO L129 PetriNetUnfolder]: 19/92 cut-off events. [2021-03-26 10:32:12,488 INFO L130 PetriNetUnfolder]: For 153/207 co-relation queries the response was YES. [2021-03-26 10:32:12,489 INFO L84 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 92 events. 19/92 cut-off events. For 153/207 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 403 event pairs, 1 based on Foata normal form. 9/98 useless extension candidates. Maximal degree in co-relation 294. Up to 32 conditions per place. [2021-03-26 10:32:12,489 INFO L132 encePairwiseOnDemand]: 113/116 looper letters, 5 selfloop transitions, 8 changer transitions 1/33 dead transitions. [2021-03-26 10:32:12,489 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 33 transitions, 241 flow [2021-03-26 10:32:12,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:32:12,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:32:12,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2021-03-26 10:32:12,490 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8706896551724138 [2021-03-26 10:32:12,490 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 303 transitions. [2021-03-26 10:32:12,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 303 transitions. [2021-03-26 10:32:12,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:32:12,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 303 transitions. [2021-03-26 10:32:12,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,492 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,492 INFO L185 Difference]: Start difference. First operand has 36 places, 33 transitions, 213 flow. Second operand 3 states and 303 transitions. [2021-03-26 10:32:12,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 33 transitions, 241 flow [2021-03-26 10:32:12,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 33 transitions, 237 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:32:12,493 INFO L241 Difference]: Finished difference. Result has 38 places, 32 transitions, 227 flow [2021-03-26 10:32:12,493 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=227, PETRI_PLACES=38, PETRI_TRANSITIONS=32} [2021-03-26 10:32:12,493 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 6 predicate places. [2021-03-26 10:32:12,493 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:32:12,494 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 32 transitions, 227 flow [2021-03-26 10:32:12,494 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 32 transitions, 227 flow [2021-03-26 10:32:12,494 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 32 transitions, 227 flow [2021-03-26 10:32:12,498 INFO L129 PetriNetUnfolder]: 18/90 cut-off events. [2021-03-26 10:32:12,498 INFO L130 PetriNetUnfolder]: For 149/159 co-relation queries the response was YES. [2021-03-26 10:32:12,499 INFO L84 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 90 events. 18/90 cut-off events. For 149/159 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 394 event pairs, 1 based on Foata normal form. 1/88 useless extension candidates. Maximal degree in co-relation 272. Up to 31 conditions per place. [2021-03-26 10:32:12,499 INFO L142 LiptonReduction]: Number of co-enabled transitions 182 [2021-03-26 10:32:12,501 INFO L154 LiptonReduction]: Checked pairs total: 154 [2021-03-26 10:32:12,501 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:32:12,501 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 10:32:12,502 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 32 transitions, 227 flow [2021-03-26 10:32:12,502 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,502 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:32:12,502 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:32:12,502 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 10:32:12,502 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:32:12,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:32:12,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1379359423, now seen corresponding path program 1 times [2021-03-26 10:32:12,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:32:12,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413106560] [2021-03-26 10:32:12,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:32:12,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:32:12,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:32:12,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:32:12,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:32:12,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:32:12,534 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 10:32:12,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:32:12,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:32:12,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413106560] [2021-03-26 10:32:12,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:32:12,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:32:12,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615081587] [2021-03-26 10:32:12,542 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:32:12,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:32:12,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:32:12,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:32:12,543 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 116 [2021-03-26 10:32:12,543 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 227 flow. Second operand has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,543 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:32:12,543 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 116 [2021-03-26 10:32:12,543 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:32:12,572 INFO L129 PetriNetUnfolder]: 31/125 cut-off events. [2021-03-26 10:32:12,573 INFO L130 PetriNetUnfolder]: For 431/517 co-relation queries the response was YES. [2021-03-26 10:32:12,573 INFO L84 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 125 events. 31/125 cut-off events. For 431/517 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 606 event pairs, 1 based on Foata normal form. 13/135 useless extension candidates. Maximal degree in co-relation 455. Up to 40 conditions per place. [2021-03-26 10:32:12,573 INFO L132 encePairwiseOnDemand]: 109/116 looper letters, 11 selfloop transitions, 7 changer transitions 21/48 dead transitions. [2021-03-26 10:32:12,574 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 48 transitions, 438 flow [2021-03-26 10:32:12,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:32:12,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:32:12,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 455 transitions. [2021-03-26 10:32:12,575 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7844827586206896 [2021-03-26 10:32:12,575 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 455 transitions. [2021-03-26 10:32:12,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 455 transitions. [2021-03-26 10:32:12,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:32:12,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 455 transitions. [2021-03-26 10:32:12,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,577 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,577 INFO L185 Difference]: Start difference. First operand has 38 places, 32 transitions, 227 flow. Second operand 5 states and 455 transitions. [2021-03-26 10:32:12,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 48 transitions, 438 flow [2021-03-26 10:32:12,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 48 transitions, 420 flow, removed 3 selfloop flow, removed 1 redundant places. [2021-03-26 10:32:12,580 INFO L241 Difference]: Finished difference. Result has 43 places, 25 transitions, 176 flow [2021-03-26 10:32:12,580 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=176, PETRI_PLACES=43, PETRI_TRANSITIONS=25} [2021-03-26 10:32:12,580 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 11 predicate places. [2021-03-26 10:32:12,580 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:32:12,581 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 25 transitions, 176 flow [2021-03-26 10:32:12,581 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 25 transitions, 176 flow [2021-03-26 10:32:12,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 25 transitions, 176 flow [2021-03-26 10:32:12,584 INFO L129 PetriNetUnfolder]: 6/50 cut-off events. [2021-03-26 10:32:12,584 INFO L130 PetriNetUnfolder]: For 109/114 co-relation queries the response was YES. [2021-03-26 10:32:12,584 INFO L84 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 50 events. 6/50 cut-off events. For 109/114 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 157 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 174. Up to 15 conditions per place. [2021-03-26 10:32:12,584 INFO L142 LiptonReduction]: Number of co-enabled transitions 128 [2021-03-26 10:32:12,635 INFO L154 LiptonReduction]: Checked pairs total: 177 [2021-03-26 10:32:12,635 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 10:32:12,635 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 55 [2021-03-26 10:32:12,639 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 25 transitions, 186 flow [2021-03-26 10:32:12,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,639 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:32:12,639 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:32:12,640 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 10:32:12,640 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:32:12,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:32:12,640 INFO L82 PathProgramCache]: Analyzing trace with hash 662828851, now seen corresponding path program 1 times [2021-03-26 10:32:12,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:32:12,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135187611] [2021-03-26 10:32:12,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:32:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:32:12,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:32:12,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:32:12,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:32:12,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:32:12,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:32:12,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135187611] [2021-03-26 10:32:12,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:32:12,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:32:12,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515109648] [2021-03-26 10:32:12,692 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:32:12,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:32:12,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:32:12,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:32:12,693 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 119 [2021-03-26 10:32:12,693 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 25 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,694 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:32:12,694 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 119 [2021-03-26 10:32:12,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:32:12,710 INFO L129 PetriNetUnfolder]: 44/123 cut-off events. [2021-03-26 10:32:12,711 INFO L130 PetriNetUnfolder]: For 211/230 co-relation queries the response was YES. [2021-03-26 10:32:12,711 INFO L84 FinitePrefix]: Finished finitePrefix Result has 385 conditions, 123 events. 44/123 cut-off events. For 211/230 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 538 event pairs, 16 based on Foata normal form. 3/116 useless extension candidates. Maximal degree in co-relation 363. Up to 85 conditions per place. [2021-03-26 10:32:12,711 INFO L132 encePairwiseOnDemand]: 114/119 looper letters, 4 selfloop transitions, 4 changer transitions 0/28 dead transitions. [2021-03-26 10:32:12,711 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 28 transitions, 208 flow [2021-03-26 10:32:12,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:32:12,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:32:12,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2021-03-26 10:32:12,712 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2021-03-26 10:32:12,716 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 306 transitions. [2021-03-26 10:32:12,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 306 transitions. [2021-03-26 10:32:12,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:32:12,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 306 transitions. [2021-03-26 10:32:12,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,718 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,718 INFO L185 Difference]: Start difference. First operand has 43 places, 25 transitions, 186 flow. Second operand 3 states and 306 transitions. [2021-03-26 10:32:12,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 28 transitions, 208 flow [2021-03-26 10:32:12,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 28 transitions, 171 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-03-26 10:32:12,719 INFO L241 Difference]: Finished difference. Result has 40 places, 28 transitions, 175 flow [2021-03-26 10:32:12,719 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=175, PETRI_PLACES=40, PETRI_TRANSITIONS=28} [2021-03-26 10:32:12,719 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 8 predicate places. [2021-03-26 10:32:12,720 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:32:12,720 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 28 transitions, 175 flow [2021-03-26 10:32:12,720 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 28 transitions, 175 flow [2021-03-26 10:32:12,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 28 transitions, 175 flow [2021-03-26 10:32:12,726 INFO L129 PetriNetUnfolder]: 45/127 cut-off events. [2021-03-26 10:32:12,726 INFO L130 PetriNetUnfolder]: For 137/172 co-relation queries the response was YES. [2021-03-26 10:32:12,726 INFO L84 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 127 events. 45/127 cut-off events. For 137/172 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 573 event pairs, 16 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 340. Up to 85 conditions per place. [2021-03-26 10:32:12,727 INFO L142 LiptonReduction]: Number of co-enabled transitions 136 [2021-03-26 10:32:12,746 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-26 10:32:12,746 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:32:12,746 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-03-26 10:32:12,747 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 27 transitions, 173 flow [2021-03-26 10:32:12,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,747 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:32:12,747 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:32:12,747 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 10:32:12,747 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:32:12,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:32:12,747 INFO L82 PathProgramCache]: Analyzing trace with hash 309895821, now seen corresponding path program 1 times [2021-03-26 10:32:12,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:32:12,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299769132] [2021-03-26 10:32:12,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:32:12,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:32:12,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:32:12,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:32:12,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:32:12,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:32:12,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:32:12,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:32:12,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:32:12,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299769132] [2021-03-26 10:32:12,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:32:12,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:32:12,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399172568] [2021-03-26 10:32:12,791 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:32:12,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:32:12,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:32:12,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:32:12,793 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 120 [2021-03-26 10:32:12,793 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 27 transitions, 173 flow. Second operand has 4 states, 4 states have (on average 100.75) internal successors, (403), 4 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,794 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:32:12,794 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 120 [2021-03-26 10:32:12,794 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:32:12,814 INFO L129 PetriNetUnfolder]: 22/77 cut-off events. [2021-03-26 10:32:12,815 INFO L130 PetriNetUnfolder]: For 82/133 co-relation queries the response was YES. [2021-03-26 10:32:12,815 INFO L84 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 77 events. 22/77 cut-off events. For 82/133 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 272 event pairs, 2 based on Foata normal form. 24/98 useless extension candidates. Maximal degree in co-relation 256. Up to 50 conditions per place. [2021-03-26 10:32:12,815 INFO L132 encePairwiseOnDemand]: 115/120 looper letters, 3 selfloop transitions, 7 changer transitions 1/30 dead transitions. [2021-03-26 10:32:12,815 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 30 transitions, 207 flow [2021-03-26 10:32:12,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:32:12,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:32:12,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 412 transitions. [2021-03-26 10:32:12,816 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8583333333333333 [2021-03-26 10:32:12,816 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 412 transitions. [2021-03-26 10:32:12,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 412 transitions. [2021-03-26 10:32:12,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:32:12,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 412 transitions. [2021-03-26 10:32:12,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,818 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,818 INFO L185 Difference]: Start difference. First operand has 39 places, 27 transitions, 173 flow. Second operand 4 states and 412 transitions. [2021-03-26 10:32:12,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 30 transitions, 207 flow [2021-03-26 10:32:12,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 30 transitions, 199 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:32:12,820 INFO L241 Difference]: Finished difference. Result has 41 places, 29 transitions, 199 flow [2021-03-26 10:32:12,820 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=199, PETRI_PLACES=41, PETRI_TRANSITIONS=29} [2021-03-26 10:32:12,821 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 9 predicate places. [2021-03-26 10:32:12,821 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:32:12,821 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 29 transitions, 199 flow [2021-03-26 10:32:12,821 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 29 transitions, 199 flow [2021-03-26 10:32:12,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 29 transitions, 199 flow [2021-03-26 10:32:12,825 INFO L129 PetriNetUnfolder]: 18/73 cut-off events. [2021-03-26 10:32:12,826 INFO L130 PetriNetUnfolder]: For 89/132 co-relation queries the response was YES. [2021-03-26 10:32:12,826 INFO L84 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 73 events. 18/73 cut-off events. For 89/132 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 255 event pairs, 2 based on Foata normal form. 4/74 useless extension candidates. Maximal degree in co-relation 250. Up to 46 conditions per place. [2021-03-26 10:32:12,826 INFO L142 LiptonReduction]: Number of co-enabled transitions 118 [2021-03-26 10:32:12,882 INFO L154 LiptonReduction]: Checked pairs total: 6 [2021-03-26 10:32:12,882 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:32:12,882 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 61 [2021-03-26 10:32:12,883 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 28 transitions, 197 flow [2021-03-26 10:32:12,884 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 100.75) internal successors, (403), 4 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,884 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:32:12,884 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:32:12,885 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 10:32:12,885 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:32:12,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:32:12,885 INFO L82 PathProgramCache]: Analyzing trace with hash 298038653, now seen corresponding path program 1 times [2021-03-26 10:32:12,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:32:12,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086196065] [2021-03-26 10:32:12,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:32:12,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:32:12,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:32:12,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:32:12,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:32:12,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:32:12,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:32:12,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:32:12,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:32:12,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:32:12,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:32:12,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086196065] [2021-03-26 10:32:12,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:32:12,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:32:12,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734624704] [2021-03-26 10:32:12,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:32:12,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:32:12,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:32:12,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:32:12,927 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 121 [2021-03-26 10:32:12,929 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 28 transitions, 197 flow. Second operand has 5 states, 5 states have (on average 100.8) internal successors, (504), 5 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,929 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:32:12,929 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 121 [2021-03-26 10:32:12,930 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:32:12,949 INFO L129 PetriNetUnfolder]: 14/53 cut-off events. [2021-03-26 10:32:12,950 INFO L130 PetriNetUnfolder]: For 200/293 co-relation queries the response was YES. [2021-03-26 10:32:12,950 INFO L84 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 53 events. 14/53 cut-off events. For 200/293 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 166 event pairs, 0 based on Foata normal form. 34/84 useless extension candidates. Maximal degree in co-relation 212. Up to 30 conditions per place. [2021-03-26 10:32:12,950 INFO L132 encePairwiseOnDemand]: 116/121 looper letters, 0 selfloop transitions, 0 changer transitions 27/27 dead transitions. [2021-03-26 10:32:12,950 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 27 transitions, 201 flow [2021-03-26 10:32:12,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:32:12,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:32:12,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 510 transitions. [2021-03-26 10:32:12,952 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8429752066115702 [2021-03-26 10:32:12,952 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 510 transitions. [2021-03-26 10:32:12,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 510 transitions. [2021-03-26 10:32:12,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:32:12,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 510 transitions. [2021-03-26 10:32:12,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 121.0) internal successors, (726), 6 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,954 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 121.0) internal successors, (726), 6 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,954 INFO L185 Difference]: Start difference. First operand has 40 places, 28 transitions, 197 flow. Second operand 5 states and 510 transitions. [2021-03-26 10:32:12,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 27 transitions, 201 flow [2021-03-26 10:32:12,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 27 transitions, 182 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-03-26 10:32:12,955 INFO L241 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2021-03-26 10:32:12,955 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2021-03-26 10:32:12,955 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 8 predicate places. [2021-03-26 10:32:12,955 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:32:12,955 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 0 transitions, 0 flow [2021-03-26 10:32:12,955 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 0 transitions, 0 flow [2021-03-26 10:32:12,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 10:32:12,956 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 10:32:12,956 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:32:12,956 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-26 10:32:12,956 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 10:32:12,956 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:32:12,956 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:32:12,956 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 10:32:12,957 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 10:32:12,957 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 100.8) internal successors, (504), 5 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:32:12,957 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 10:32:12,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 10:32:12 BasicIcfg [2021-03-26 10:32:12,959 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 10:32:12,960 INFO L168 Benchmark]: Toolchain (without parser) took 3653.13 ms. Allocated memory was 255.9 MB in the beginning and 411.0 MB in the end (delta: 155.2 MB). Free memory was 236.2 MB in the beginning and 156.1 MB in the end (delta: 80.1 MB). Peak memory consumption was 236.4 MB. Max. memory is 16.0 GB. [2021-03-26 10:32:12,960 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:32:12,960 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.67 ms. Allocated memory was 255.9 MB in the beginning and 341.8 MB in the end (delta: 86.0 MB). Free memory was 235.6 MB in the beginning and 305.7 MB in the end (delta: -70.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-26 10:32:12,961 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.72 ms. Allocated memory is still 341.8 MB. Free memory was 305.7 MB in the beginning and 304.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:32:12,961 INFO L168 Benchmark]: Boogie Preprocessor took 13.46 ms. Allocated memory is still 341.8 MB. Free memory was 304.0 MB in the beginning and 302.4 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:32:12,961 INFO L168 Benchmark]: RCFGBuilder took 303.71 ms. Allocated memory is still 341.8 MB. Free memory was 302.4 MB in the beginning and 316.6 MB in the end (delta: -14.2 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. [2021-03-26 10:32:12,961 INFO L168 Benchmark]: TraceAbstraction took 2973.16 ms. Allocated memory was 341.8 MB in the beginning and 411.0 MB in the end (delta: 69.2 MB). Free memory was 315.8 MB in the beginning and 156.1 MB in the end (delta: 159.7 MB). Peak memory consumption was 229.5 MB. Max. memory is 16.0 GB. [2021-03-26 10:32:12,963 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 334.67 ms. Allocated memory was 255.9 MB in the beginning and 341.8 MB in the end (delta: 86.0 MB). Free memory was 235.6 MB in the beginning and 305.7 MB in the end (delta: -70.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.72 ms. Allocated memory is still 341.8 MB. Free memory was 305.7 MB in the beginning and 304.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.46 ms. Allocated memory is still 341.8 MB. Free memory was 304.0 MB in the beginning and 302.4 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 303.71 ms. Allocated memory is still 341.8 MB. Free memory was 302.4 MB in the beginning and 316.6 MB in the end (delta: -14.2 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2973.16 ms. Allocated memory was 341.8 MB in the beginning and 411.0 MB in the end (delta: 69.2 MB). Free memory was 315.8 MB in the beginning and 156.1 MB in the end (delta: 159.7 MB). Peak memory consumption was 229.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 956.7ms, 68 PlacesBefore, 32 PlacesAfterwards, 59 TransitionsBefore, 22 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 4 FixpointIterations, 14 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 37 TotalNumberOfCompositions, 996 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 540, positive: 507, positive conditional: 507, positive unconditional: 0, negative: 33, negative conditional: 33, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 540, positive: 507, positive conditional: 0, positive unconditional: 507, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 540, positive: 507, positive conditional: 0, positive unconditional: 507, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 487, positive: 465, positive conditional: 0, positive unconditional: 465, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 487, positive: 461, positive conditional: 0, positive unconditional: 461, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 26, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 105, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 92, negative conditional: 0, negative unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 540, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 487, unknown conditional: 0, unknown unconditional: 487] , Statistics on independence cache: Total cache size (in pairs): 487, Positive cache size: 465, Positive conditional cache size: 0, Positive unconditional cache size: 465, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 458.1ms, 33 PlacesBefore, 29 PlacesAfterwards, 27 TransitionsBefore, 23 TransitionsAfterwards, 202 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 309 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 149, positive: 130, positive conditional: 130, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 149, positive: 130, positive conditional: 0, positive unconditional: 130, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 149, positive: 130, positive conditional: 0, positive unconditional: 130, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 51, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 51, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 30, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 149, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 51, unknown conditional: 0, unknown unconditional: 51] , Statistics on independence cache: Total cache size (in pairs): 538, Positive cache size: 509, Positive conditional cache size: 0, Positive unconditional cache size: 509, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Eliminated conditions: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 369.8ms, 33 PlacesBefore, 32 PlacesAfterwards, 26 TransitionsBefore, 25 TransitionsAfterwards, 158 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 178 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 128, positive: 116, positive conditional: 116, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 128, positive: 116, positive conditional: 0, positive unconditional: 116, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 128, positive: 116, positive conditional: 0, positive unconditional: 116, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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] , SemanticIndependenceRelation.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.Query Time [ms]: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 128, positive: 111, positive conditional: 0, positive unconditional: 111, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 543, Positive cache size: 514, Positive conditional cache size: 0, Positive unconditional cache size: 514, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Eliminated conditions: 30 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.4ms, 34 PlacesBefore, 34 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 184 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 138 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 89, positive: 80, positive conditional: 80, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 89, positive: 80, positive conditional: 0, positive unconditional: 80, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 89, positive: 80, positive conditional: 0, positive unconditional: 80, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 89, positive: 77, positive conditional: 0, positive unconditional: 77, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 546, Positive cache size: 517, Positive conditional cache size: 0, Positive unconditional cache size: 517, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Eliminated conditions: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.1ms, 36 PlacesBefore, 36 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 196 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 178 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 121, positive: 110, positive conditional: 110, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 121, positive: 110, positive conditional: 0, positive unconditional: 110, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 121, positive: 110, positive conditional: 0, positive unconditional: 110, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 121, positive: 109, positive conditional: 0, positive unconditional: 109, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 547, Positive cache size: 518, Positive conditional cache size: 0, Positive unconditional cache size: 518, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Eliminated conditions: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.4ms, 38 PlacesBefore, 38 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 182 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 154 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 124, positive: 114, positive conditional: 114, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 124, positive: 114, positive conditional: 0, positive unconditional: 114, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 124, positive: 114, positive conditional: 0, positive unconditional: 114, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 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: 124, positive: 114, positive conditional: 0, positive unconditional: 114, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 547, Positive cache size: 518, Positive conditional cache size: 0, Positive unconditional cache size: 518, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Eliminated conditions: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 54.5ms, 43 PlacesBefore, 43 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 128 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 177 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 129, positive: 116, positive conditional: 116, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 129, positive: 116, positive conditional: 0, positive unconditional: 116, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 129, positive: 116, positive conditional: 0, positive unconditional: 116, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 0, positive unconditional: 8, 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: 8, positive: 8, positive conditional: 0, positive unconditional: 8, 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: 129, positive: 108, positive conditional: 0, positive unconditional: 108, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 8, unknown conditional: 0, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 555, Positive cache size: 526, Positive conditional cache size: 0, Positive unconditional cache size: 526, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Eliminated conditions: 49 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.3ms, 40 PlacesBefore, 39 PlacesAfterwards, 28 TransitionsBefore, 27 TransitionsAfterwards, 136 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 3 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 555, Positive cache size: 526, Positive conditional cache size: 0, Positive unconditional cache size: 526, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Eliminated conditions: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 60.9ms, 41 PlacesBefore, 40 PlacesAfterwards, 29 TransitionsBefore, 28 TransitionsAfterwards, 118 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 6 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 557, Positive cache size: 528, Positive conditional cache size: 0, Positive unconditional cache size: 528, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6ms, 40 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 557, Positive cache size: 528, Positive conditional cache size: 0, Positive unconditional cache size: 528, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Eliminated conditions: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2885.2ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 273.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1039.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 45 SDtfs, 14 SDslu, 18 SDs, 0 SdLazy, 65 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 58.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=227occurred in iteration=5, InterpolantAutomatonStates: 33, 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: 12.4ms SsaConstructionTime, 117.6ms SatisfiabilityAnalysisTime, 307.6ms InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 395 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...