/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/safe007_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 16:02:52,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 16:02:52,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 16:02:52,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 16:02:52,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 16:02:52,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 16:02:52,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 16:02:52,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 16:02:52,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 16:02:52,685 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 16:02:52,686 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 16:02:52,687 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 16:02:52,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 16:02:52,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 16:02:52,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 16:02:52,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 16:02:52,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 16:02:52,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 16:02:52,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 16:02:52,702 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 16:02:52,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 16:02:52,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 16:02:52,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 16:02:52,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 16:02:52,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-11 16:02:52,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 16:02:52,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 16:02:52,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 16:02:52,718 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 16:02:52,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 16:02:52,719 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 16:02:52,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 16:02:52,719 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 16:02:52,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 16:02:52,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 16:02:52,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 16:02:52,724 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 [2021-06-11 16:02:52,758 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 16:02:52,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 16:02:52,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 16:02:52,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 16:02:52,761 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 16:02:52,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 16:02:52,761 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 16:02:52,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 16:02:52,761 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 16:02:52,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 16:02:52,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 16:02:52,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 16:02:52,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 16:02:52,762 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 16:02:52,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 16:02:52,763 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 16:02:52,763 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 16:02:52,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 16:02:52,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 16:02:52,763 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 16:02:52,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 16:02:52,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 16:02:52,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 16:02:52,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 16:02:52,764 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 16:02:52,764 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 16:02:52,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 16:02:52,764 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-06-11 16:02:52,764 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 16:02:52,765 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 16:02:52,765 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 16:02:53,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 16:02:53,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 16:02:53,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 16:02:53,075 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 16:02:53,076 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 16:02:53,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i [2021-06-11 16:02:53,134 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3414a9f80/cc997b7dfe8b4da58ec5c1160da1dd54/FLAG4bf5bd494 [2021-06-11 16:02:53,621 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 16:02:53,621 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i [2021-06-11 16:02:53,634 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3414a9f80/cc997b7dfe8b4da58ec5c1160da1dd54/FLAG4bf5bd494 [2021-06-11 16:02:53,953 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3414a9f80/cc997b7dfe8b4da58ec5c1160da1dd54 [2021-06-11 16:02:53,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 16:02:53,957 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 16:02:53,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 16:02:53,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 16:02:53,971 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 16:02:53,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 04:02:53" (1/1) ... [2021-06-11 16:02:53,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6eba91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:02:53, skipping insertion in model container [2021-06-11 16:02:53,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 04:02:53" (1/1) ... [2021-06-11 16:02:53,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 16:02:54,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 16:02:54,152 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/safe007_tso.oepc.i[950,963] [2021-06-11 16:02:54,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 16:02:54,342 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 16:02:54,358 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/safe007_tso.oepc.i[950,963] [2021-06-11 16:02:54,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 16:02:54,446 INFO L208 MainTranslator]: Completed translation [2021-06-11 16:02:54,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:02:54 WrapperNode [2021-06-11 16:02:54,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 16:02:54,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 16:02:54,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 16:02:54,449 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 16:02:54,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:02:54" (1/1) ... [2021-06-11 16:02:54,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:02:54" (1/1) ... [2021-06-11 16:02:54,481 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 16:02:54,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 16:02:54,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 16:02:54,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 16:02:54,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:02:54" (1/1) ... [2021-06-11 16:02:54,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:02:54" (1/1) ... [2021-06-11 16:02:54,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:02:54" (1/1) ... [2021-06-11 16:02:54,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:02:54" (1/1) ... [2021-06-11 16:02:54,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:02:54" (1/1) ... [2021-06-11 16:02:54,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:02:54" (1/1) ... [2021-06-11 16:02:54,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:02:54" (1/1) ... [2021-06-11 16:02:54,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 16:02:54,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 16:02:54,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 16:02:54,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 16:02:54,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:02:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 16:02:54,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 16:02:54,568 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-11 16:02:54,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 16:02:54,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 16:02:54,569 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-11 16:02:54,569 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-11 16:02:54,569 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-11 16:02:54,569 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-11 16:02:54,569 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-11 16:02:54,569 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-11 16:02:54,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 16:02:54,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-11 16:02:54,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 16:02:54,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 16:02:54,571 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 16:02:54,978 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 16:02:54,979 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-11 16:02:54,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 04:02:54 BoogieIcfgContainer [2021-06-11 16:02:54,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 16:02:54,981 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 16:02:54,981 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 16:02:54,984 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 16:02:54,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 04:02:53" (1/3) ... [2021-06-11 16:02:54,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c06860d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 04:02:54, skipping insertion in model container [2021-06-11 16:02:54,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:02:54" (2/3) ... [2021-06-11 16:02:54,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c06860d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 04:02:54, skipping insertion in model container [2021-06-11 16:02:54,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 04:02:54" (3/3) ... [2021-06-11 16:02:54,986 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_tso.oepc.i [2021-06-11 16:02:54,991 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 16:02:54,994 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 16:02:54,995 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 16:02:55,020 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,021 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,021 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,021 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,021 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,021 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,022 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,022 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,022 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,022 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,022 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,022 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,023 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,023 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,023 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,023 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,023 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,023 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,024 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,024 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,024 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,024 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,024 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,024 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,025 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,025 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,025 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,025 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,025 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,026 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,026 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,026 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,026 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,026 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,028 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,029 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,029 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,029 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,033 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,034 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,034 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,034 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,036 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,036 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,036 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,036 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:02:55,038 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-11 16:02:55,054 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-11 16:02:55,084 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 16:02:55,084 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 16:02:55,084 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 16:02:55,084 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 16:02:55,085 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 16:02:55,085 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 16:02:55,085 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 16:02:55,085 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 16:02:55,096 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 76 transitions, 167 flow [2021-06-11 16:02:55,145 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2021-06-11 16:02:55,146 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:02:55,151 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-06-11 16:02:55,151 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 76 transitions, 167 flow [2021-06-11 16:02:55,163 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 61 transitions, 131 flow [2021-06-11 16:02:55,164 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:02:55,176 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 61 transitions, 131 flow [2021-06-11 16:02:55,179 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 61 transitions, 131 flow [2021-06-11 16:02:55,180 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 61 transitions, 131 flow [2021-06-11 16:02:55,193 INFO L129 PetriNetUnfolder]: 1/61 cut-off events. [2021-06-11 16:02:55,193 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:02:55,194 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 61 events. 1/61 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. 0/60 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-06-11 16:02:55,196 INFO L151 LiptonReduction]: Number of co-enabled transitions 864 [2021-06-11 16:02:55,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:55,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:55,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:55,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:02:55,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:55,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:02:55,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:02:55,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:55,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:55,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:55,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:55,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:55,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:55,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:55,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:55,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:55,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:55,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:55,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:55,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:55,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:55,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:55,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:55,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:55,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:55,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:55,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:55,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:55,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:55,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:55,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:55,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:55,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:02:55,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:55,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:02:55,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:02:55,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:55,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:02:55,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:55,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:02:55,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:02:55,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:55,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:02:55,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:55,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:02:55,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:02:56,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:56,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:56,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:56,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:56,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:56,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:02:56,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:56,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 16:02:56,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:02:56,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:56,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:56,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:56,234 INFO L147 QuantifierPusher]: treesize reduction 22, result has 4.3 percent of original size 1 [2021-06-11 16:02:56,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:56,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:56,346 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-06-11 16:02:56,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:56,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:56,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:02:56,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:56,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:02:56,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:02:56,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:56,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:56,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:56,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:56,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:56,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:56,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:56,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:56,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:57,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:57,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:57,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:02:57,268 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2021-06-11 16:02:57,420 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2021-06-11 16:02:57,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:57,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:02:57,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:57,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:02:57,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 16:02:57,678 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-06-11 16:02:57,889 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-06-11 16:02:57,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:57,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:02:57,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:57,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:02:57,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:02:57,986 INFO L163 LiptonReduction]: Checked pairs total: 1526 [2021-06-11 16:02:57,987 INFO L165 LiptonReduction]: Total number of compositions: 47 [2021-06-11 16:02:57,989 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2826 [2021-06-11 16:02:57,997 INFO L129 PetriNetUnfolder]: 0/14 cut-off events. [2021-06-11 16:02:57,997 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:02:57,997 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:02:57,998 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:02:57,998 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:02:58,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:02:58,002 INFO L82 PathProgramCache]: Analyzing trace with hash 508470380, now seen corresponding path program 1 times [2021-06-11 16:02:58,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:02:58,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137420927] [2021-06-11 16:02:58,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:02:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:02:58,243 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 16:02:58,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:02:58,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:02:58,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137420927] [2021-06-11 16:02:58,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:02:58,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 16:02:58,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767635680] [2021-06-11 16:02:58,264 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 16:02:58,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:02:58,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 16:02:58,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 16:02:58,278 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 123 [2021-06-11 16:02:58,282 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,283 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:02:58,283 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 123 [2021-06-11 16:02:58,284 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:02:58,315 INFO L129 PetriNetUnfolder]: 14/55 cut-off events. [2021-06-11 16:02:58,315 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:02:58,316 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 55 events. 14/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 168 event pairs, 6 based on Foata normal form. 1/51 useless extension candidates. Maximal degree in co-relation 85. Up to 29 conditions per place. [2021-06-11 16:02:58,318 INFO L132 encePairwiseOnDemand]: 118/123 looper letters, 4 selfloop transitions, 4 changer transitions 0/20 dead transitions. [2021-06-11 16:02:58,318 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 20 transitions, 65 flow [2021-06-11 16:02:58,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 16:02:58,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 16:02:58,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 294 transitions. [2021-06-11 16:02:58,335 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7967479674796748 [2021-06-11 16:02:58,335 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 294 transitions. [2021-06-11 16:02:58,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 294 transitions. [2021-06-11 16:02:58,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:02:58,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 294 transitions. [2021-06-11 16:02:58,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,351 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,352 INFO L185 Difference]: Start difference. First operand has 27 places, 17 transitions, 43 flow. Second operand 3 states and 294 transitions. [2021-06-11 16:02:58,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 20 transitions, 65 flow [2021-06-11 16:02:58,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 62 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-11 16:02:58,355 INFO L241 Difference]: Finished difference. Result has 27 places, 20 transitions, 66 flow [2021-06-11 16:02:58,357 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=27, PETRI_TRANSITIONS=20} [2021-06-11 16:02:58,357 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2021-06-11 16:02:58,357 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:02:58,358 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 20 transitions, 66 flow [2021-06-11 16:02:58,358 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 20 transitions, 66 flow [2021-06-11 16:02:58,358 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 20 transitions, 66 flow [2021-06-11 16:02:58,365 INFO L129 PetriNetUnfolder]: 14/57 cut-off events. [2021-06-11 16:02:58,366 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:02:58,366 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 57 events. 14/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 176 event pairs, 6 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 90. Up to 29 conditions per place. [2021-06-11 16:02:58,367 INFO L151 LiptonReduction]: Number of co-enabled transitions 128 [2021-06-11 16:02:58,369 INFO L163 LiptonReduction]: Checked pairs total: 72 [2021-06-11 16:02:58,369 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:02:58,369 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-06-11 16:02:58,370 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 20 transitions, 66 flow [2021-06-11 16:02:58,371 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,371 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:02:58,371 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:02:58,371 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 16:02:58,371 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:02:58,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:02:58,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1417288232, now seen corresponding path program 1 times [2021-06-11 16:02:58,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:02:58,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271892489] [2021-06-11 16:02:58,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:02:58,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:02:58,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:58,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:02:58,431 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 16:02:58,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:02:58,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:02:58,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271892489] [2021-06-11 16:02:58,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:02:58,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:02:58,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611152977] [2021-06-11 16:02:58,441 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:02:58,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:02:58,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:02:58,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:02:58,443 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 123 [2021-06-11 16:02:58,444 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 20 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,444 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:02:58,444 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 123 [2021-06-11 16:02:58,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:02:58,467 INFO L129 PetriNetUnfolder]: 9/41 cut-off events. [2021-06-11 16:02:58,467 INFO L130 PetriNetUnfolder]: For 11/41 co-relation queries the response was YES. [2021-06-11 16:02:58,467 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 41 events. 9/41 cut-off events. For 11/41 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 103 event pairs, 0 based on Foata normal form. 1/40 useless extension candidates. Maximal degree in co-relation 86. Up to 21 conditions per place. [2021-06-11 16:02:58,468 INFO L132 encePairwiseOnDemand]: 120/123 looper letters, 7 selfloop transitions, 3 changer transitions 0/22 dead transitions. [2021-06-11 16:02:58,468 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 22 transitions, 94 flow [2021-06-11 16:02:58,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 16:02:58,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 16:02:58,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 293 transitions. [2021-06-11 16:02:58,469 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7940379403794038 [2021-06-11 16:02:58,470 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 293 transitions. [2021-06-11 16:02:58,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 293 transitions. [2021-06-11 16:02:58,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:02:58,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 293 transitions. [2021-06-11 16:02:58,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,473 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,473 INFO L185 Difference]: Start difference. First operand has 27 places, 20 transitions, 66 flow. Second operand 3 states and 293 transitions. [2021-06-11 16:02:58,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 22 transitions, 94 flow [2021-06-11 16:02:58,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 22 transitions, 90 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 16:02:58,474 INFO L241 Difference]: Finished difference. Result has 29 places, 20 transitions, 73 flow [2021-06-11 16:02:58,474 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=73, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2021-06-11 16:02:58,475 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 2 predicate places. [2021-06-11 16:02:58,475 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:02:58,475 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 20 transitions, 73 flow [2021-06-11 16:02:58,475 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 20 transitions, 73 flow [2021-06-11 16:02:58,476 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 20 transitions, 73 flow [2021-06-11 16:02:58,480 INFO L129 PetriNetUnfolder]: 9/45 cut-off events. [2021-06-11 16:02:58,481 INFO L130 PetriNetUnfolder]: For 7/10 co-relation queries the response was YES. [2021-06-11 16:02:58,481 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 45 events. 9/45 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 122 event pairs, 3 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 79. Up to 21 conditions per place. [2021-06-11 16:02:58,481 INFO L151 LiptonReduction]: Number of co-enabled transitions 128 [2021-06-11 16:02:58,483 INFO L163 LiptonReduction]: Checked pairs total: 72 [2021-06-11 16:02:58,483 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:02:58,483 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-06-11 16:02:58,484 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 73 flow [2021-06-11 16:02:58,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,485 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:02:58,485 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:02:58,485 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 16:02:58,485 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:02:58,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:02:58,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1417288077, now seen corresponding path program 1 times [2021-06-11 16:02:58,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:02:58,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509930295] [2021-06-11 16:02:58,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:02:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:02:58,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:58,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:02:58,529 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 16:02:58,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:02:58,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:02:58,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509930295] [2021-06-11 16:02:58,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:02:58,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:02:58,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736484064] [2021-06-11 16:02:58,537 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:02:58,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:02:58,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:02:58,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:02:58,539 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 123 [2021-06-11 16:02:58,539 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 73 flow. Second operand has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,539 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:02:58,539 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 123 [2021-06-11 16:02:58,539 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:02:58,570 INFO L129 PetriNetUnfolder]: 14/62 cut-off events. [2021-06-11 16:02:58,570 INFO L130 PetriNetUnfolder]: For 45/89 co-relation queries the response was YES. [2021-06-11 16:02:58,571 INFO L84 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 62 events. 14/62 cut-off events. For 45/89 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 225 event pairs, 0 based on Foata normal form. 13/73 useless extension candidates. Maximal degree in co-relation 143. Up to 28 conditions per place. [2021-06-11 16:02:58,571 INFO L132 encePairwiseOnDemand]: 117/123 looper letters, 7 selfloop transitions, 9 changer transitions 0/27 dead transitions. [2021-06-11 16:02:58,571 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 27 transitions, 136 flow [2021-06-11 16:02:58,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 16:02:58,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 16:02:58,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 466 transitions. [2021-06-11 16:02:58,573 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7577235772357723 [2021-06-11 16:02:58,573 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 466 transitions. [2021-06-11 16:02:58,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 466 transitions. [2021-06-11 16:02:58,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:02:58,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 466 transitions. [2021-06-11 16:02:58,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 93.2) internal successors, (466), 5 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,577 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,578 INFO L185 Difference]: Start difference. First operand has 29 places, 20 transitions, 73 flow. Second operand 5 states and 466 transitions. [2021-06-11 16:02:58,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 27 transitions, 136 flow [2021-06-11 16:02:58,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 27 transitions, 128 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 16:02:58,579 INFO L241 Difference]: Finished difference. Result has 34 places, 25 transitions, 131 flow [2021-06-11 16:02:58,579 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=131, PETRI_PLACES=34, PETRI_TRANSITIONS=25} [2021-06-11 16:02:58,580 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 7 predicate places. [2021-06-11 16:02:58,580 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:02:58,580 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 25 transitions, 131 flow [2021-06-11 16:02:58,580 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 25 transitions, 131 flow [2021-06-11 16:02:58,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 25 transitions, 131 flow [2021-06-11 16:02:58,586 INFO L129 PetriNetUnfolder]: 11/63 cut-off events. [2021-06-11 16:02:58,587 INFO L130 PetriNetUnfolder]: For 54/83 co-relation queries the response was YES. [2021-06-11 16:02:58,587 INFO L84 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 63 events. 11/63 cut-off events. For 54/83 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 242 event pairs, 2 based on Foata normal form. 2/62 useless extension candidates. Maximal degree in co-relation 157. Up to 27 conditions per place. [2021-06-11 16:02:58,588 INFO L151 LiptonReduction]: Number of co-enabled transitions 166 [2021-06-11 16:02:58,590 INFO L163 LiptonReduction]: Checked pairs total: 71 [2021-06-11 16:02:58,590 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:02:58,591 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-06-11 16:02:58,591 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 25 transitions, 131 flow [2021-06-11 16:02:58,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,592 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:02:58,592 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:02:58,592 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 16:02:58,592 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:02:58,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:02:58,593 INFO L82 PathProgramCache]: Analyzing trace with hash -986258565, now seen corresponding path program 1 times [2021-06-11 16:02:58,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:02:58,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66594960] [2021-06-11 16:02:58,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:02:58,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:02:58,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:58,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:02:58,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:58,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:02:58,640 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 16:02:58,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:02:58,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:02:58,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66594960] [2021-06-11 16:02:58,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:02:58,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 16:02:58,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413149492] [2021-06-11 16:02:58,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 16:02:58,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:02:58,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 16:02:58,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 16:02:58,653 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 123 [2021-06-11 16:02:58,654 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 131 flow. Second operand has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,654 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:02:58,654 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 123 [2021-06-11 16:02:58,654 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:02:58,684 INFO L129 PetriNetUnfolder]: 9/58 cut-off events. [2021-06-11 16:02:58,684 INFO L130 PetriNetUnfolder]: For 136/222 co-relation queries the response was YES. [2021-06-11 16:02:58,685 INFO L84 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 58 events. 9/58 cut-off events. For 136/222 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 227 event pairs, 0 based on Foata normal form. 11/67 useless extension candidates. Maximal degree in co-relation 172. Up to 24 conditions per place. [2021-06-11 16:02:58,685 INFO L132 encePairwiseOnDemand]: 119/123 looper letters, 7 selfloop transitions, 3 changer transitions 6/27 dead transitions. [2021-06-11 16:02:58,685 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 27 transitions, 179 flow [2021-06-11 16:02:58,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:02:58,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:02:58,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2021-06-11 16:02:58,687 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7540650406504065 [2021-06-11 16:02:58,687 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 371 transitions. [2021-06-11 16:02:58,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 371 transitions. [2021-06-11 16:02:58,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:02:58,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 371 transitions. [2021-06-11 16:02:58,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,691 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,691 INFO L185 Difference]: Start difference. First operand has 34 places, 25 transitions, 131 flow. Second operand 4 states and 371 transitions. [2021-06-11 16:02:58,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 27 transitions, 179 flow [2021-06-11 16:02:58,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 27 transitions, 174 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-06-11 16:02:58,694 INFO L241 Difference]: Finished difference. Result has 38 places, 19 transitions, 100 flow [2021-06-11 16:02:58,694 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=100, PETRI_PLACES=38, PETRI_TRANSITIONS=19} [2021-06-11 16:02:58,694 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 11 predicate places. [2021-06-11 16:02:58,694 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:02:58,694 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 19 transitions, 100 flow [2021-06-11 16:02:58,695 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 19 transitions, 100 flow [2021-06-11 16:02:58,695 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 19 transitions, 100 flow [2021-06-11 16:02:58,704 INFO L129 PetriNetUnfolder]: 3/27 cut-off events. [2021-06-11 16:02:58,704 INFO L130 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2021-06-11 16:02:58,707 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 27 events. 3/27 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 49 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 74. Up to 11 conditions per place. [2021-06-11 16:02:58,707 INFO L151 LiptonReduction]: Number of co-enabled transitions 114 [2021-06-11 16:02:58,709 INFO L163 LiptonReduction]: Checked pairs total: 47 [2021-06-11 16:02:58,709 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:02:58,709 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-06-11 16:02:58,716 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 19 transitions, 100 flow [2021-06-11 16:02:58,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,717 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:02:58,717 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:02:58,717 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 16:02:58,718 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:02:58,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:02:58,718 INFO L82 PathProgramCache]: Analyzing trace with hash -509707357, now seen corresponding path program 1 times [2021-06-11 16:02:58,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:02:58,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315426869] [2021-06-11 16:02:58,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:02:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:02:58,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:58,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:02:58,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:58,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:02:58,801 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 16:02:58,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:02:58,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:02:58,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315426869] [2021-06-11 16:02:58,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:02:58,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 16:02:58,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805706249] [2021-06-11 16:02:58,810 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 16:02:58,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:02:58,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 16:02:58,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 16:02:58,812 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 123 [2021-06-11 16:02:58,813 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 19 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,813 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:02:58,813 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 123 [2021-06-11 16:02:58,813 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:02:58,839 INFO L129 PetriNetUnfolder]: 3/36 cut-off events. [2021-06-11 16:02:58,839 INFO L130 PetriNetUnfolder]: For 86/107 co-relation queries the response was YES. [2021-06-11 16:02:58,839 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 36 events. 3/36 cut-off events. For 86/107 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 103 event pairs, 0 based on Foata normal form. 5/41 useless extension candidates. Maximal degree in co-relation 103. Up to 12 conditions per place. [2021-06-11 16:02:58,839 INFO L132 encePairwiseOnDemand]: 119/123 looper letters, 3 selfloop transitions, 3 changer transitions 5/22 dead transitions. [2021-06-11 16:02:58,839 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 22 transitions, 148 flow [2021-06-11 16:02:58,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:02:58,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:02:58,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2021-06-11 16:02:58,841 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7540650406504065 [2021-06-11 16:02:58,841 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 371 transitions. [2021-06-11 16:02:58,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 371 transitions. [2021-06-11 16:02:58,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:02:58,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 371 transitions. [2021-06-11 16:02:58,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,844 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,844 INFO L185 Difference]: Start difference. First operand has 37 places, 19 transitions, 100 flow. Second operand 4 states and 371 transitions. [2021-06-11 16:02:58,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 22 transitions, 148 flow [2021-06-11 16:02:58,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 22 transitions, 102 flow, removed 11 selfloop flow, removed 9 redundant places. [2021-06-11 16:02:58,846 INFO L241 Difference]: Finished difference. Result has 33 places, 17 transitions, 70 flow [2021-06-11 16:02:58,846 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=70, PETRI_PLACES=33, PETRI_TRANSITIONS=17} [2021-06-11 16:02:58,846 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 6 predicate places. [2021-06-11 16:02:58,846 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:02:58,846 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 17 transitions, 70 flow [2021-06-11 16:02:58,847 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 17 transitions, 70 flow [2021-06-11 16:02:58,847 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 17 transitions, 70 flow [2021-06-11 16:02:58,849 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-06-11 16:02:58,849 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-06-11 16:02:58,849 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 17 events. 0/17 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-06-11 16:02:58,850 INFO L151 LiptonReduction]: Number of co-enabled transitions 80 [2021-06-11 16:02:58,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:58,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:58,887 INFO L163 LiptonReduction]: Checked pairs total: 36 [2021-06-11 16:02:58,887 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 16:02:58,888 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42 [2021-06-11 16:02:58,888 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 16 transitions, 68 flow [2021-06-11 16:02:58,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,889 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:02:58,889 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:02:58,889 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 16:02:58,889 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:02:58,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:02:58,890 INFO L82 PathProgramCache]: Analyzing trace with hash -330167163, now seen corresponding path program 1 times [2021-06-11 16:02:58,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:02:58,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164785901] [2021-06-11 16:02:58,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:02:58,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:02:58,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:58,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:02:58,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:58,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:02:58,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:02:58,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164785901] [2021-06-11 16:02:58,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:02:58,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:02:58,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124995506] [2021-06-11 16:02:58,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:02:58,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:02:58,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:02:58,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:02:58,926 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 124 [2021-06-11 16:02:58,926 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 16 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,927 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:02:58,927 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 124 [2021-06-11 16:02:58,927 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:02:58,936 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-06-11 16:02:58,937 INFO L130 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2021-06-11 16:02:58,937 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 15 events. 0/15 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 2/17 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-06-11 16:02:58,937 INFO L132 encePairwiseOnDemand]: 121/124 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2021-06-11 16:02:58,937 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 15 transitions, 64 flow [2021-06-11 16:02:58,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:02:58,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:02:58,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 393 transitions. [2021-06-11 16:02:58,938 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7923387096774194 [2021-06-11 16:02:58,939 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 393 transitions. [2021-06-11 16:02:58,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 393 transitions. [2021-06-11 16:02:58,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:02:58,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 393 transitions. [2021-06-11 16:02:58,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,941 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,942 INFO L185 Difference]: Start difference. First operand has 32 places, 16 transitions, 68 flow. Second operand 4 states and 393 transitions. [2021-06-11 16:02:58,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 15 transitions, 64 flow [2021-06-11 16:02:58,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 15 transitions, 46 flow, removed 2 selfloop flow, removed 7 redundant places. [2021-06-11 16:02:58,942 INFO L241 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2021-06-11 16:02:58,942 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=27, PETRI_TRANSITIONS=0} [2021-06-11 16:02:58,943 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2021-06-11 16:02:58,943 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:02:58,943 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 0 transitions, 0 flow [2021-06-11 16:02:58,943 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 0 transitions, 0 flow [2021-06-11 16:02:58,943 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 16:02:58,943 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 16:02:58,944 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:02:58,944 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-06-11 16:02:58,944 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 16:02:58,944 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:02:58,944 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:02:58,944 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-06-11 16:02:58,945 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 16:02:58,945 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:58,945 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-11 16:02:58,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 04:02:58 BasicIcfg [2021-06-11 16:02:58,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 16:02:58,949 INFO L168 Benchmark]: Toolchain (without parser) took 4992.60 ms. Allocated memory was 373.3 MB in the beginning and 448.8 MB in the end (delta: 75.5 MB). Free memory was 336.4 MB in the beginning and 212.1 MB in the end (delta: 124.3 MB). Peak memory consumption was 202.7 MB. Max. memory is 16.0 GB. [2021-06-11 16:02:58,949 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 373.3 MB. Free memory is still 354.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 16:02:58,950 INFO L168 Benchmark]: CACSL2BoogieTranslator took 490.40 ms. Allocated memory is still 373.3 MB. Free memory was 336.2 MB in the beginning and 334.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.0 GB. [2021-06-11 16:02:58,950 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.73 ms. Allocated memory is still 373.3 MB. Free memory was 334.8 MB in the beginning and 332.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 16:02:58,950 INFO L168 Benchmark]: Boogie Preprocessor took 18.61 ms. Allocated memory is still 373.3 MB. Free memory was 332.7 MB in the beginning and 331.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 16:02:58,951 INFO L168 Benchmark]: RCFGBuilder took 478.94 ms. Allocated memory is still 373.3 MB. Free memory was 331.6 MB in the beginning and 307.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-11 16:02:58,951 INFO L168 Benchmark]: TraceAbstraction took 3967.15 ms. Allocated memory was 373.3 MB in the beginning and 448.8 MB in the end (delta: 75.5 MB). Free memory was 306.5 MB in the beginning and 212.1 MB in the end (delta: 94.3 MB). Peak memory consumption was 171.9 MB. Max. memory is 16.0 GB. [2021-06-11 16:02:58,953 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 373.3 MB. Free memory is still 354.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 490.40 ms. Allocated memory is still 373.3 MB. Free memory was 336.2 MB in the beginning and 334.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 32.73 ms. Allocated memory is still 373.3 MB. Free memory was 334.8 MB in the beginning and 332.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 18.61 ms. Allocated memory is still 373.3 MB. Free memory was 332.7 MB in the beginning and 331.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 478.94 ms. Allocated memory is still 373.3 MB. Free memory was 331.6 MB in the beginning and 307.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3967.15 ms. Allocated memory was 373.3 MB in the beginning and 448.8 MB in the end (delta: 75.5 MB). Free memory was 306.5 MB in the beginning and 212.1 MB in the end (delta: 94.3 MB). Peak memory consumption was 171.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2808.0ms, 70 PlacesBefore, 27 PlacesAfterwards, 61 TransitionsBefore, 17 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 7 FixpointIterations, 19 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 47 TotalNumberOfCompositions, 1526 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 953, positive: 869, positive conditional: 869, positive unconditional: 0, negative: 84, negative conditional: 84, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 953, positive: 869, positive conditional: 0, positive unconditional: 869, negative: 84, negative conditional: 0, negative unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 953, positive: 869, positive conditional: 0, positive unconditional: 869, negative: 84, negative conditional: 0, negative unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 608, positive: 580, positive conditional: 0, positive unconditional: 580, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 608, positive: 570, positive conditional: 0, positive unconditional: 570, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 152, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 115, negative conditional: 0, negative unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 953, positive: 289, positive conditional: 0, positive unconditional: 289, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 608, unknown conditional: 0, unknown unconditional: 608] , Statistics on independence cache: Total cache size (in pairs): 608, Positive cache size: 580, Positive conditional cache size: 0, Positive unconditional cache size: 580, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.3ms, 27 PlacesBefore, 27 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 128 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 72 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 41, positive: 34, positive conditional: 34, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 41, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 41, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 41, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 612, Positive cache size: 584, Positive conditional cache size: 0, Positive unconditional cache size: 584, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.8ms, 29 PlacesBefore, 29 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 128 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 72 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 38, positive: 31, positive conditional: 31, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 38, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 38, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 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: 38, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 613, Positive cache size: 585, Positive conditional cache size: 0, Positive unconditional cache size: 585, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Eliminated conditions: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.2ms, 34 PlacesBefore, 34 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 166 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 71 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 29, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 29, positive: 24, positive conditional: 2, positive unconditional: 22, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 29, positive: 24, positive conditional: 2, positive unconditional: 22, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 29, positive: 21, positive conditional: 2, positive unconditional: 19, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 616, Positive cache size: 588, Positive conditional cache size: 0, Positive unconditional cache size: 588, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Eliminated conditions: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.5ms, 38 PlacesBefore, 37 PlacesAfterwards, 19 TransitionsBefore, 19 TransitionsAfterwards, 114 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 47 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 32, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 32, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 32, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 32, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 617, Positive cache size: 589, Positive conditional cache size: 0, Positive unconditional cache size: 589, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Eliminated conditions: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.6ms, 33 PlacesBefore, 32 PlacesAfterwards, 17 TransitionsBefore, 16 TransitionsAfterwards, 80 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 36 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 24, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 24, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 621, Positive cache size: 592, Positive conditional cache size: 0, Positive unconditional cache size: 592, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Eliminated conditions: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.8ms, 27 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): 621, Positive cache size: 592, Positive conditional cache size: 0, Positive unconditional cache size: 592, 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, 75 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3867.0ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 254.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2908.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 31 SDtfs, 23 SDslu, 10 SDs, 0 SdLazy, 36 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 44.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 80.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred in iteration=3, InterpolantAutomatonStates: 23, 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, 123.4ms SatisfiabilityAnalysisTime, 325.6ms InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 272 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...