/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/safe030_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 16:25:35,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 16:25:35,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 16:25:35,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 16:25:35,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 16:25:35,040 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 16:25:35,042 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 16:25:35,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 16:25:35,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 16:25:35,053 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 16:25:35,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 16:25:35,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 16:25:35,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 16:25:35,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 16:25:35,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 16:25:35,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 16:25:35,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 16:25:35,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 16:25:35,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 16:25:35,067 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 16:25:35,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 16:25:35,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 16:25:35,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 16:25:35,071 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 16:25:35,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-11 16:25:35,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 16:25:35,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 16:25:35,090 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 16:25:35,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 16:25:35,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 16:25:35,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 16:25:35,092 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 16:25:35,092 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 16:25:35,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 16:25:35,093 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 16:25:35,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 16:25:35,097 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 16:25:35,129 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 16:25:35,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 16:25:35,130 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 16:25:35,130 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 16:25:35,130 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 16:25:35,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 16:25:35,130 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 16:25:35,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 16:25:35,130 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 16:25:35,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 16:25:35,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 16:25:35,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 16:25:35,131 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 16:25:35,131 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 16:25:35,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 16:25:35,131 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 16:25:35,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 16:25:35,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 16:25:35,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 16:25:35,131 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 16:25:35,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 16:25:35,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 16:25:35,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 16:25:35,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 16:25:35,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 16:25:35,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 16:25:35,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 16:25:35,132 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-06-11 16:25:35,132 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 16:25:35,132 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 16:25:35,132 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 16:25:35,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 16:25:35,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 16:25:35,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 16:25:35,393 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 16:25:35,393 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 16:25:35,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2021-06-11 16:25:35,440 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61ca62861/36c8a8c828704f618450293572c5b65f/FLAG633dc97a2 [2021-06-11 16:25:36,046 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 16:25:36,046 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2021-06-11 16:25:36,061 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61ca62861/36c8a8c828704f618450293572c5b65f/FLAG633dc97a2 [2021-06-11 16:25:36,410 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61ca62861/36c8a8c828704f618450293572c5b65f [2021-06-11 16:25:36,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 16:25:36,414 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 16:25:36,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 16:25:36,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 16:25:36,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 16:25:36,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 04:25:36" (1/1) ... [2021-06-11 16:25:36,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@629ae25a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:25:36, skipping insertion in model container [2021-06-11 16:25:36,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 04:25:36" (1/1) ... [2021-06-11 16:25:36,425 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 16:25:36,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 16:25:36,605 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/safe030_tso.opt.i[949,962] [2021-06-11 16:25:36,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 16:25:36,720 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 16:25:36,730 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/safe030_tso.opt.i[949,962] [2021-06-11 16:25:36,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 16:25:36,819 INFO L208 MainTranslator]: Completed translation [2021-06-11 16:25:36,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:25:36 WrapperNode [2021-06-11 16:25:36,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 16:25:36,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 16:25:36,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 16:25:36,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 16:25:36,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:25:36" (1/1) ... [2021-06-11 16:25:36,850 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:25:36" (1/1) ... [2021-06-11 16:25:36,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 16:25:36,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 16:25:36,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 16:25:36,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 16:25:36,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:25:36" (1/1) ... [2021-06-11 16:25:36,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:25:36" (1/1) ... [2021-06-11 16:25:36,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:25:36" (1/1) ... [2021-06-11 16:25:36,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:25:36" (1/1) ... [2021-06-11 16:25:36,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:25:36" (1/1) ... [2021-06-11 16:25:36,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:25:36" (1/1) ... [2021-06-11 16:25:36,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:25:36" (1/1) ... [2021-06-11 16:25:36,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 16:25:36,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 16:25:36,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 16:25:36,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 16:25:36,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:25:36" (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 16:25:36,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 16:25:36,951 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-11 16:25:36,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 16:25:36,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 16:25:36,952 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-11 16:25:36,952 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-11 16:25:36,953 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-11 16:25:36,953 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-11 16:25:36,953 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-11 16:25:36,953 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-11 16:25:36,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 16:25:36,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-11 16:25:36,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 16:25:36,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 16:25:36,954 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 16:25:37,238 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 16:25:37,239 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-11 16:25:37,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 04:25:37 BoogieIcfgContainer [2021-06-11 16:25:37,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 16:25:37,241 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 16:25:37,241 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 16:25:37,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 16:25:37,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 04:25:36" (1/3) ... [2021-06-11 16:25:37,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4812d570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 04:25:37, skipping insertion in model container [2021-06-11 16:25:37,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:25:36" (2/3) ... [2021-06-11 16:25:37,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4812d570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 04:25:37, skipping insertion in model container [2021-06-11 16:25:37,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 04:25:37" (3/3) ... [2021-06-11 16:25:37,245 INFO L111 eAbstractionObserver]: Analyzing ICFG safe030_tso.opt.i [2021-06-11 16:25:37,249 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 16:25:37,252 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 16:25:37,255 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 16:25:37,273 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,274 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,274 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,274 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,274 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,275 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,275 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,275 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,275 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,275 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,275 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,276 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,276 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,276 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,276 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,276 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,276 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,276 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,277 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,277 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,277 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,277 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,277 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,277 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,277 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,277 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,278 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,278 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,278 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,278 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,278 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,278 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,278 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,286 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,286 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,286 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,286 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,310 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,310 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,310 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,311 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,313 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,314 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,314 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:25:37,324 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-11 16:25:37,338 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-11 16:25:37,365 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 16:25:37,365 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 16:25:37,365 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 16:25:37,365 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 16:25:37,365 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 16:25:37,366 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 16:25:37,366 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 16:25:37,366 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 16:25:37,377 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 73 transitions, 161 flow [2021-06-11 16:25:37,421 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2021-06-11 16:25:37,422 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:25:37,425 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 2/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 55 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-06-11 16:25:37,426 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 73 transitions, 161 flow [2021-06-11 16:25:37,434 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 58 transitions, 125 flow [2021-06-11 16:25:37,435 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:25:37,444 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 58 transitions, 125 flow [2021-06-11 16:25:37,446 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 58 transitions, 125 flow [2021-06-11 16:25:37,447 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 58 transitions, 125 flow [2021-06-11 16:25:37,456 INFO L129 PetriNetUnfolder]: 1/58 cut-off events. [2021-06-11 16:25:37,456 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:25:37,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 58 events. 1/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-06-11 16:25:37,458 INFO L151 LiptonReduction]: Number of co-enabled transitions 864 [2021-06-11 16:25:37,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:37,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:25:37,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:37,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:25:37,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:37,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:25:37,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:37,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:25:37,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:37,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:25:37,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:25:37,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:37,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:25:37,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:37,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:25:37,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:37,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:25:37,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:37,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:25:37,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:37,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:25:37,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:37,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:25:37,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:37,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:25:37,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:25:37,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:37,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:25:37,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:37,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:25:37,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:37,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:25:38,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:38,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:25:38,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:38,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:25:38,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:25:38,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:38,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:25:38,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:38,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:25:38,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:38,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:25:38,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:38,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:25:38,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:38,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 16:25:38,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:25:38,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:38,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:25:38,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:38,337 INFO L147 QuantifierPusher]: treesize reduction 22, result has 4.3 percent of original size 1 [2021-06-11 16:25:38,368 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-06-11 16:25:38,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:25:38,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:38,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:25:38,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:38,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:25:38,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:38,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:25:38,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:25:38,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:38,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:25:38,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:38,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:25:38,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:38,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:25:38,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:38,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:25:38,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:38,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:25:38,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:25:38,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:38,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:25:38,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:38,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:25:38,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:38,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:25:38,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:25:39,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:39,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:25:39,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:39,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:25:39,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:25:39,343 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-11 16:25:39,528 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-11 16:25:39,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:39,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:25:39,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:39,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:25:39,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:39,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 16:25:39,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 16:25:39,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:25:39,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:39,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:25:39,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:39,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 16:25:39,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 16:25:39,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:25:39,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:39,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 16:25:39,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 16:25:39,608 INFO L163 LiptonReduction]: Checked pairs total: 1792 [2021-06-11 16:25:39,609 INFO L165 LiptonReduction]: Total number of compositions: 45 [2021-06-11 16:25:39,610 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2176 [2021-06-11 16:25:39,617 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-06-11 16:25:39,617 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:25:39,617 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:25:39,618 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:25:39,618 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:25:39,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:25:39,621 INFO L82 PathProgramCache]: Analyzing trace with hash 223185157, now seen corresponding path program 1 times [2021-06-11 16:25:39,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:25:39,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790605665] [2021-06-11 16:25:39,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:25:39,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:25:39,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:39,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:25:39,756 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 16:25:39,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790605665] [2021-06-11 16:25:39,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:25:39,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 16:25:39,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964322192] [2021-06-11 16:25:39,762 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-11 16:25:39,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:25:39,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-11 16:25:39,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-11 16:25:39,773 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 118 [2021-06-11 16:25:39,774 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 45 flow. Second operand has 2 states, 2 states have (on average 111.5) internal successors, (223), 2 states have internal predecessors, (223), 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 16:25:39,775 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:25:39,775 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 118 [2021-06-11 16:25:39,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:25:39,782 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-06-11 16:25:39,782 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:25:39,782 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 1/18 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-11 16:25:39,783 INFO L132 encePairwiseOnDemand]: 117/118 looper letters, 0 selfloop transitions, 0 changer transitions 0/17 dead transitions. [2021-06-11 16:25:39,783 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 17 transitions, 43 flow [2021-06-11 16:25:39,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-11 16:25:39,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-06-11 16:25:39,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 223 transitions. [2021-06-11 16:25:39,791 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9449152542372882 [2021-06-11 16:25:39,791 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 223 transitions. [2021-06-11 16:25:39,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 223 transitions. [2021-06-11 16:25:39,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:25:39,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 223 transitions. [2021-06-11 16:25:39,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 111.5) internal successors, (223), 2 states have internal predecessors, (223), 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 16:25:39,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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 16:25:39,804 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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 16:25:39,805 INFO L185 Difference]: Start difference. First operand has 27 places, 18 transitions, 45 flow. Second operand 2 states and 223 transitions. [2021-06-11 16:25:39,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 17 transitions, 43 flow [2021-06-11 16:25:39,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 17 transitions, 40 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-11 16:25:39,809 INFO L241 Difference]: Finished difference. Result has 25 places, 17 transitions, 40 flow [2021-06-11 16:25:39,810 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=25, PETRI_TRANSITIONS=17} [2021-06-11 16:25:39,813 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, -2 predicate places. [2021-06-11 16:25:39,813 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:25:39,814 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 17 transitions, 40 flow [2021-06-11 16:25:39,814 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 17 transitions, 40 flow [2021-06-11 16:25:39,814 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 17 transitions, 40 flow [2021-06-11 16:25:39,819 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-06-11 16:25:39,819 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:25:39,819 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-11 16:25:39,819 INFO L151 LiptonReduction]: Number of co-enabled transitions 126 [2021-06-11 16:25:39,820 INFO L163 LiptonReduction]: Checked pairs total: 138 [2021-06-11 16:25:39,820 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:25:39,821 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-06-11 16:25:39,821 INFO L480 AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 40 flow [2021-06-11 16:25:39,821 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 111.5) internal successors, (223), 2 states have internal predecessors, (223), 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 16:25:39,822 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:25:39,822 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:25:39,822 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 16:25:39,822 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:25:39,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:25:39,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1671194756, now seen corresponding path program 1 times [2021-06-11 16:25:39,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:25:39,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767168908] [2021-06-11 16:25:39,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:25:39,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:25:39,913 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 16:25:39,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:25:39,922 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 16:25:39,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767168908] [2021-06-11 16:25:39,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:25:39,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 16:25:39,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840985298] [2021-06-11 16:25:39,923 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 16:25:39,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:25:39,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 16:25:39,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 16:25:39,927 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 118 [2021-06-11 16:25:39,927 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 17 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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 16:25:39,927 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:25:39,927 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 118 [2021-06-11 16:25:39,927 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:25:39,964 INFO L129 PetriNetUnfolder]: 90/211 cut-off events. [2021-06-11 16:25:39,965 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:25:39,965 INFO L84 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 211 events. 90/211 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1002 event pairs, 28 based on Foata normal form. 16/219 useless extension candidates. Maximal degree in co-relation 379. Up to 85 conditions per place. [2021-06-11 16:25:39,966 INFO L132 encePairwiseOnDemand]: 110/118 looper letters, 7 selfloop transitions, 7 changer transitions 0/23 dead transitions. [2021-06-11 16:25:39,966 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 23 transitions, 80 flow [2021-06-11 16:25:39,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 16:25:39,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 16:25:39,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2021-06-11 16:25:39,968 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.788135593220339 [2021-06-11 16:25:39,968 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 279 transitions. [2021-06-11 16:25:39,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 279 transitions. [2021-06-11 16:25:39,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:25:39,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 279 transitions. [2021-06-11 16:25:39,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:25:39,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 16:25:39,970 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 16:25:39,970 INFO L185 Difference]: Start difference. First operand has 24 places, 17 transitions, 40 flow. Second operand 3 states and 279 transitions. [2021-06-11 16:25:39,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 23 transitions, 80 flow [2021-06-11 16:25:39,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 23 transitions, 80 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 16:25:39,971 INFO L241 Difference]: Finished difference. Result has 28 places, 23 transitions, 94 flow [2021-06-11 16:25:39,971 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, 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=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=28, PETRI_TRANSITIONS=23} [2021-06-11 16:25:39,971 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 1 predicate places. [2021-06-11 16:25:39,972 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:25:39,972 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 23 transitions, 94 flow [2021-06-11 16:25:39,972 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 23 transitions, 94 flow [2021-06-11 16:25:39,972 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 23 transitions, 94 flow [2021-06-11 16:25:39,984 INFO L129 PetriNetUnfolder]: 90/211 cut-off events. [2021-06-11 16:25:39,984 INFO L130 PetriNetUnfolder]: For 24/28 co-relation queries the response was YES. [2021-06-11 16:25:39,985 INFO L84 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 211 events. 90/211 cut-off events. For 24/28 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1064 event pairs, 34 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 466. Up to 85 conditions per place. [2021-06-11 16:25:39,986 INFO L151 LiptonReduction]: Number of co-enabled transitions 142 [2021-06-11 16:25:39,988 INFO L163 LiptonReduction]: Checked pairs total: 15 [2021-06-11 16:25:39,988 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:25:39,988 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-06-11 16:25:39,989 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 23 transitions, 94 flow [2021-06-11 16:25:39,989 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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 16:25:39,989 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:25:39,989 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:25:39,989 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 16:25:39,990 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:25:39,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:25:39,990 INFO L82 PathProgramCache]: Analyzing trace with hash 2058614239, now seen corresponding path program 1 times [2021-06-11 16:25:39,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:25:39,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517223609] [2021-06-11 16:25:39,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:25:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:25:40,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:40,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:25:40,025 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 16:25:40,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:25:40,030 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 16:25:40,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517223609] [2021-06-11 16:25:40,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:25:40,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:25:40,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022243635] [2021-06-11 16:25:40,031 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:25:40,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:25:40,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:25:40,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:25:40,032 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 118 [2021-06-11 16:25:40,032 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 23 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:25:40,032 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:25:40,032 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 118 [2021-06-11 16:25:40,032 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:25:40,070 INFO L129 PetriNetUnfolder]: 75/184 cut-off events. [2021-06-11 16:25:40,070 INFO L130 PetriNetUnfolder]: For 52/127 co-relation queries the response was YES. [2021-06-11 16:25:40,072 INFO L84 FinitePrefix]: Finished finitePrefix Result has 559 conditions, 184 events. 75/184 cut-off events. For 52/127 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 806 event pairs, 5 based on Foata normal form. 2/182 useless extension candidates. Maximal degree in co-relation 548. Up to 78 conditions per place. [2021-06-11 16:25:40,074 INFO L132 encePairwiseOnDemand]: 110/118 looper letters, 12 selfloop transitions, 11 changer transitions 0/32 dead transitions. [2021-06-11 16:25:40,074 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 32 transitions, 186 flow [2021-06-11 16:25:40,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:25:40,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:25:40,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 372 transitions. [2021-06-11 16:25:40,077 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.788135593220339 [2021-06-11 16:25:40,077 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 372 transitions. [2021-06-11 16:25:40,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 372 transitions. [2021-06-11 16:25:40,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:25:40,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 372 transitions. [2021-06-11 16:25:40,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 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 16:25:40,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 16:25:40,080 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 16:25:40,080 INFO L185 Difference]: Start difference. First operand has 28 places, 23 transitions, 94 flow. Second operand 4 states and 372 transitions. [2021-06-11 16:25:40,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 32 transitions, 186 flow [2021-06-11 16:25:40,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 32 transitions, 162 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 16:25:40,083 INFO L241 Difference]: Finished difference. Result has 32 places, 30 transitions, 164 flow [2021-06-11 16:25:40,083 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=32, PETRI_TRANSITIONS=30} [2021-06-11 16:25:40,083 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places. [2021-06-11 16:25:40,083 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:25:40,084 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 30 transitions, 164 flow [2021-06-11 16:25:40,084 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 30 transitions, 164 flow [2021-06-11 16:25:40,085 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 30 transitions, 164 flow [2021-06-11 16:25:40,094 INFO L129 PetriNetUnfolder]: 75/184 cut-off events. [2021-06-11 16:25:40,094 INFO L130 PetriNetUnfolder]: For 111/143 co-relation queries the response was YES. [2021-06-11 16:25:40,094 INFO L84 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 184 events. 75/184 cut-off events. For 111/143 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 833 event pairs, 14 based on Foata normal form. 1/181 useless extension candidates. Maximal degree in co-relation 511. Up to 78 conditions per place. [2021-06-11 16:25:40,095 INFO L151 LiptonReduction]: Number of co-enabled transitions 172 [2021-06-11 16:25:40,099 INFO L163 LiptonReduction]: Checked pairs total: 22 [2021-06-11 16:25:40,099 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:25:40,099 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-06-11 16:25:40,100 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 30 transitions, 164 flow [2021-06-11 16:25:40,101 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:25:40,101 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:25:40,101 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:25:40,101 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 16:25:40,101 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:25:40,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:25:40,102 INFO L82 PathProgramCache]: Analyzing trace with hash -267430504, now seen corresponding path program 1 times [2021-06-11 16:25:40,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:25:40,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514710325] [2021-06-11 16:25:40,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:25:40,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:25:40,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:40,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:25:40,142 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 16:25:40,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:25:40,147 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 16:25:40,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514710325] [2021-06-11 16:25:40,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:25:40,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:25:40,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932660561] [2021-06-11 16:25:40,148 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:25:40,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:25:40,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:25:40,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:25:40,149 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 118 [2021-06-11 16:25:40,150 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 30 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:25:40,150 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:25:40,150 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 118 [2021-06-11 16:25:40,150 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:25:40,169 INFO L129 PetriNetUnfolder]: 64/164 cut-off events. [2021-06-11 16:25:40,169 INFO L130 PetriNetUnfolder]: For 131/218 co-relation queries the response was YES. [2021-06-11 16:25:40,170 INFO L84 FinitePrefix]: Finished finitePrefix Result has 594 conditions, 164 events. 64/164 cut-off events. For 131/218 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 719 event pairs, 6 based on Foata normal form. 9/172 useless extension candidates. Maximal degree in co-relation 580. Up to 72 conditions per place. [2021-06-11 16:25:40,170 INFO L132 encePairwiseOnDemand]: 110/118 looper letters, 16 selfloop transitions, 16 changer transitions 0/41 dead transitions. [2021-06-11 16:25:40,170 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 41 transitions, 302 flow [2021-06-11 16:25:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:25:40,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:25:40,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 372 transitions. [2021-06-11 16:25:40,171 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.788135593220339 [2021-06-11 16:25:40,171 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 372 transitions. [2021-06-11 16:25:40,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 372 transitions. [2021-06-11 16:25:40,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:25:40,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 372 transitions. [2021-06-11 16:25:40,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 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 16:25:40,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 16:25:40,173 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 16:25:40,173 INFO L185 Difference]: Start difference. First operand has 32 places, 30 transitions, 164 flow. Second operand 4 states and 372 transitions. [2021-06-11 16:25:40,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 41 transitions, 302 flow [2021-06-11 16:25:40,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 41 transitions, 302 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 16:25:40,176 INFO L241 Difference]: Finished difference. Result has 38 places, 39 transitions, 306 flow [2021-06-11 16:25:40,176 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=306, PETRI_PLACES=38, PETRI_TRANSITIONS=39} [2021-06-11 16:25:40,176 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 11 predicate places. [2021-06-11 16:25:40,176 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:25:40,176 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 39 transitions, 306 flow [2021-06-11 16:25:40,176 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 39 transitions, 306 flow [2021-06-11 16:25:40,177 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 39 transitions, 306 flow [2021-06-11 16:25:40,185 INFO L129 PetriNetUnfolder]: 64/164 cut-off events. [2021-06-11 16:25:40,185 INFO L130 PetriNetUnfolder]: For 378/443 co-relation queries the response was YES. [2021-06-11 16:25:40,185 INFO L84 FinitePrefix]: Finished finitePrefix Result has 634 conditions, 164 events. 64/164 cut-off events. For 378/443 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 723 event pairs, 4 based on Foata normal form. 2/164 useless extension candidates. Maximal degree in co-relation 617. Up to 72 conditions per place. [2021-06-11 16:25:40,186 INFO L151 LiptonReduction]: Number of co-enabled transitions 206 [2021-06-11 16:25:40,189 INFO L163 LiptonReduction]: Checked pairs total: 31 [2021-06-11 16:25:40,190 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:25:40,190 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-06-11 16:25:40,190 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 39 transitions, 306 flow [2021-06-11 16:25:40,190 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:25:40,191 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:25:40,191 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:25:40,191 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 16:25:40,191 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:25:40,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:25:40,191 INFO L82 PathProgramCache]: Analyzing trace with hash 299593153, now seen corresponding path program 1 times [2021-06-11 16:25:40,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:25:40,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93009666] [2021-06-11 16:25:40,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:25:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:25:40,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:40,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:25:40,211 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 16:25:40,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:25:40,217 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 16:25:40,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93009666] [2021-06-11 16:25:40,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:25:40,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:25:40,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771332022] [2021-06-11 16:25:40,218 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:25:40,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:25:40,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:25:40,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:25:40,219 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 118 [2021-06-11 16:25:40,219 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 39 transitions, 306 flow. Second operand has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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 16:25:40,219 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:25:40,219 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 118 [2021-06-11 16:25:40,219 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:25:40,249 INFO L129 PetriNetUnfolder]: 57/151 cut-off events. [2021-06-11 16:25:40,249 INFO L130 PetriNetUnfolder]: For 412/625 co-relation queries the response was YES. [2021-06-11 16:25:40,250 INFO L84 FinitePrefix]: Finished finitePrefix Result has 702 conditions, 151 events. 57/151 cut-off events. For 412/625 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 624 event pairs, 1 based on Foata normal form. 17/167 useless extension candidates. Maximal degree in co-relation 683. Up to 67 conditions per place. [2021-06-11 16:25:40,251 INFO L132 encePairwiseOnDemand]: 110/118 looper letters, 18 selfloop transitions, 22 changer transitions 0/49 dead transitions. [2021-06-11 16:25:40,251 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 49 transitions, 480 flow [2021-06-11 16:25:40,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:25:40,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:25:40,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 372 transitions. [2021-06-11 16:25:40,252 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.788135593220339 [2021-06-11 16:25:40,252 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 372 transitions. [2021-06-11 16:25:40,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 372 transitions. [2021-06-11 16:25:40,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:25:40,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 372 transitions. [2021-06-11 16:25:40,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 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 16:25:40,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 16:25:40,254 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 16:25:40,254 INFO L185 Difference]: Start difference. First operand has 38 places, 39 transitions, 306 flow. Second operand 4 states and 372 transitions. [2021-06-11 16:25:40,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 49 transitions, 480 flow [2021-06-11 16:25:40,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 49 transitions, 480 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 16:25:40,259 INFO L241 Difference]: Finished difference. Result has 44 places, 47 transitions, 484 flow [2021-06-11 16:25:40,259 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=484, PETRI_PLACES=44, PETRI_TRANSITIONS=47} [2021-06-11 16:25:40,259 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 17 predicate places. [2021-06-11 16:25:40,259 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:25:40,259 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 47 transitions, 484 flow [2021-06-11 16:25:40,260 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 47 transitions, 484 flow [2021-06-11 16:25:40,260 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 47 transitions, 484 flow [2021-06-11 16:25:40,274 INFO L129 PetriNetUnfolder]: 57/151 cut-off events. [2021-06-11 16:25:40,274 INFO L130 PetriNetUnfolder]: For 698/775 co-relation queries the response was YES. [2021-06-11 16:25:40,280 INFO L84 FinitePrefix]: Finished finitePrefix Result has 738 conditions, 151 events. 57/151 cut-off events. For 698/775 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 639 event pairs, 4 based on Foata normal form. 3/152 useless extension candidates. Maximal degree in co-relation 716. Up to 67 conditions per place. [2021-06-11 16:25:40,282 INFO L151 LiptonReduction]: Number of co-enabled transitions 234 [2021-06-11 16:25:40,287 INFO L163 LiptonReduction]: Checked pairs total: 39 [2021-06-11 16:25:40,287 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:25:40,288 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-06-11 16:25:40,289 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 47 transitions, 484 flow [2021-06-11 16:25:40,289 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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 16:25:40,289 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:25:40,289 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:25:40,289 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 16:25:40,289 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:25:40,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:25:40,290 INFO L82 PathProgramCache]: Analyzing trace with hash -999514919, now seen corresponding path program 1 times [2021-06-11 16:25:40,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:25:40,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597487020] [2021-06-11 16:25:40,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:25:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:25:40,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:40,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:25:40,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:40,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:25:40,337 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 16:25:40,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:25:40,343 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 16:25:40,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597487020] [2021-06-11 16:25:40,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:25:40,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 16:25:40,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429284607] [2021-06-11 16:25:40,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:25:40,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:25:40,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:25:40,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:25:40,345 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 118 [2021-06-11 16:25:40,345 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 47 transitions, 484 flow. Second operand has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 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 16:25:40,345 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:25:40,345 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 118 [2021-06-11 16:25:40,346 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:25:40,396 INFO L129 PetriNetUnfolder]: 54/162 cut-off events. [2021-06-11 16:25:40,397 INFO L130 PetriNetUnfolder]: For 710/814 co-relation queries the response was YES. [2021-06-11 16:25:40,397 INFO L84 FinitePrefix]: Finished finitePrefix Result has 894 conditions, 162 events. 54/162 cut-off events. For 710/814 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 761 event pairs, 1 based on Foata normal form. 14/174 useless extension candidates. Maximal degree in co-relation 870. Up to 74 conditions per place. [2021-06-11 16:25:40,398 INFO L132 encePairwiseOnDemand]: 110/118 looper letters, 14 selfloop transitions, 26 changer transitions 3/52 dead transitions. [2021-06-11 16:25:40,398 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 52 transitions, 630 flow [2021-06-11 16:25:40,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:25:40,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:25:40,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2021-06-11 16:25:40,399 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7860169491525424 [2021-06-11 16:25:40,399 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 371 transitions. [2021-06-11 16:25:40,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 371 transitions. [2021-06-11 16:25:40,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:25:40,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 371 transitions. [2021-06-11 16:25:40,400 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 16:25:40,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 16:25:40,402 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 16:25:40,402 INFO L185 Difference]: Start difference. First operand has 44 places, 47 transitions, 484 flow. Second operand 4 states and 371 transitions. [2021-06-11 16:25:40,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 52 transitions, 630 flow [2021-06-11 16:25:40,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 52 transitions, 630 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 16:25:40,405 INFO L241 Difference]: Finished difference. Result has 50 places, 47 transitions, 604 flow [2021-06-11 16:25:40,405 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=604, PETRI_PLACES=50, PETRI_TRANSITIONS=47} [2021-06-11 16:25:40,406 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 23 predicate places. [2021-06-11 16:25:40,406 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:25:40,406 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 47 transitions, 604 flow [2021-06-11 16:25:40,406 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 47 transitions, 604 flow [2021-06-11 16:25:40,407 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 47 transitions, 604 flow [2021-06-11 16:25:40,420 INFO L129 PetriNetUnfolder]: 51/156 cut-off events. [2021-06-11 16:25:40,420 INFO L130 PetriNetUnfolder]: For 1147/1251 co-relation queries the response was YES. [2021-06-11 16:25:40,420 INFO L84 FinitePrefix]: Finished finitePrefix Result has 885 conditions, 156 events. 51/156 cut-off events. For 1147/1251 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 749 event pairs, 1 based on Foata normal form. 3/157 useless extension candidates. Maximal degree in co-relation 858. Up to 70 conditions per place. [2021-06-11 16:25:40,422 INFO L151 LiptonReduction]: Number of co-enabled transitions 232 [2021-06-11 16:25:40,426 INFO L163 LiptonReduction]: Checked pairs total: 39 [2021-06-11 16:25:40,426 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:25:40,426 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-06-11 16:25:40,429 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 47 transitions, 604 flow [2021-06-11 16:25:40,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 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 16:25:40,429 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:25:40,429 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:25:40,429 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-11 16:25:40,429 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:25:40,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:25:40,430 INFO L82 PathProgramCache]: Analyzing trace with hash 683458108, now seen corresponding path program 1 times [2021-06-11 16:25:40,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:25:40,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263817475] [2021-06-11 16:25:40,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:25:40,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:25:40,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:40,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:25:40,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:40,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 16:25:40,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:25:40,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263817475] [2021-06-11 16:25:40,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:25:40,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:25:40,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876634311] [2021-06-11 16:25:40,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:25:40,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:25:40,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:25:40,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:25:40,478 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 118 [2021-06-11 16:25:40,479 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 47 transitions, 604 flow. Second operand has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 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 16:25:40,479 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:25:40,479 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 118 [2021-06-11 16:25:40,479 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:25:40,532 INFO L129 PetriNetUnfolder]: 124/326 cut-off events. [2021-06-11 16:25:40,532 INFO L130 PetriNetUnfolder]: For 1612/1711 co-relation queries the response was YES. [2021-06-11 16:25:40,533 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1305 conditions, 326 events. 124/326 cut-off events. For 1612/1711 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2051 event pairs, 27 based on Foata normal form. 36/348 useless extension candidates. Maximal degree in co-relation 1276. Up to 163 conditions per place. [2021-06-11 16:25:40,534 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 8 selfloop transitions, 8 changer transitions 0/57 dead transitions. [2021-06-11 16:25:40,534 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 57 transitions, 656 flow [2021-06-11 16:25:40,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 16:25:40,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 16:25:40,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 443 transitions. [2021-06-11 16:25:40,536 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7508474576271187 [2021-06-11 16:25:40,536 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 443 transitions. [2021-06-11 16:25:40,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 443 transitions. [2021-06-11 16:25:40,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:25:40,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 443 transitions. [2021-06-11 16:25:40,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 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 16:25:40,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 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 16:25:40,538 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 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 16:25:40,538 INFO L185 Difference]: Start difference. First operand has 50 places, 47 transitions, 604 flow. Second operand 5 states and 443 transitions. [2021-06-11 16:25:40,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 57 transitions, 656 flow [2021-06-11 16:25:40,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 57 transitions, 654 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-06-11 16:25:40,543 INFO L241 Difference]: Finished difference. Result has 57 places, 54 transitions, 662 flow [2021-06-11 16:25:40,544 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=662, PETRI_PLACES=57, PETRI_TRANSITIONS=54} [2021-06-11 16:25:40,544 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 30 predicate places. [2021-06-11 16:25:40,544 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:25:40,544 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 54 transitions, 662 flow [2021-06-11 16:25:40,544 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 54 transitions, 662 flow [2021-06-11 16:25:40,545 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 54 transitions, 662 flow [2021-06-11 16:25:40,567 INFO L129 PetriNetUnfolder]: 125/326 cut-off events. [2021-06-11 16:25:40,568 INFO L130 PetriNetUnfolder]: For 1550/1695 co-relation queries the response was YES. [2021-06-11 16:25:40,569 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1473 conditions, 326 events. 125/326 cut-off events. For 1550/1695 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2065 event pairs, 27 based on Foata normal form. 19/330 useless extension candidates. Maximal degree in co-relation 1441. Up to 184 conditions per place. [2021-06-11 16:25:40,574 INFO L151 LiptonReduction]: Number of co-enabled transitions 400 [2021-06-11 16:25:40,578 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:25:40,578 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:25:40,578 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-06-11 16:25:40,578 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 54 transitions, 662 flow [2021-06-11 16:25:40,579 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 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 16:25:40,579 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:25:40,579 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:25:40,579 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-11 16:25:40,579 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:25:40,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:25:40,579 INFO L82 PathProgramCache]: Analyzing trace with hash 109783971, now seen corresponding path program 1 times [2021-06-11 16:25:40,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:25:40,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194329701] [2021-06-11 16:25:40,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:25:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:25:40,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:40,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:25:40,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:40,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:25:40,601 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 16:25:40,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:25:40,607 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 16:25:40,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194329701] [2021-06-11 16:25:40,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:25:40,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 16:25:40,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085779444] [2021-06-11 16:25:40,608 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:25:40,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:25:40,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:25:40,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:25:40,608 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 118 [2021-06-11 16:25:40,609 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 54 transitions, 662 flow. Second operand has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 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 16:25:40,609 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:25:40,609 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 118 [2021-06-11 16:25:40,609 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:25:40,647 INFO L129 PetriNetUnfolder]: 163/420 cut-off events. [2021-06-11 16:25:40,647 INFO L130 PetriNetUnfolder]: For 1862/2045 co-relation queries the response was YES. [2021-06-11 16:25:40,649 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1897 conditions, 420 events. 163/420 cut-off events. For 1862/2045 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 2791 event pairs, 44 based on Foata normal form. 41/430 useless extension candidates. Maximal degree in co-relation 1863. Up to 268 conditions per place. [2021-06-11 16:25:40,650 INFO L132 encePairwiseOnDemand]: 110/118 looper letters, 14 selfloop transitions, 25 changer transitions 4/59 dead transitions. [2021-06-11 16:25:40,650 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 59 transitions, 824 flow [2021-06-11 16:25:40,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:25:40,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:25:40,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2021-06-11 16:25:40,651 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7860169491525424 [2021-06-11 16:25:40,651 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 371 transitions. [2021-06-11 16:25:40,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 371 transitions. [2021-06-11 16:25:40,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:25:40,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 371 transitions. [2021-06-11 16:25:40,652 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 16:25:40,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 16:25:40,653 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 16:25:40,653 INFO L185 Difference]: Start difference. First operand has 57 places, 54 transitions, 662 flow. Second operand 4 states and 371 transitions. [2021-06-11 16:25:40,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 59 transitions, 824 flow [2021-06-11 16:25:40,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 59 transitions, 820 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 16:25:40,657 INFO L241 Difference]: Finished difference. Result has 62 places, 53 transitions, 760 flow [2021-06-11 16:25:40,658 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=658, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=760, PETRI_PLACES=62, PETRI_TRANSITIONS=53} [2021-06-11 16:25:40,658 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 35 predicate places. [2021-06-11 16:25:40,658 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:25:40,658 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions, 760 flow [2021-06-11 16:25:40,658 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 53 transitions, 760 flow [2021-06-11 16:25:40,659 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions, 760 flow [2021-06-11 16:25:40,682 INFO L129 PetriNetUnfolder]: 159/411 cut-off events. [2021-06-11 16:25:40,682 INFO L130 PetriNetUnfolder]: For 2393/2570 co-relation queries the response was YES. [2021-06-11 16:25:40,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1831 conditions, 411 events. 159/411 cut-off events. For 2393/2570 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 2745 event pairs, 46 based on Foata normal form. 18/404 useless extension candidates. Maximal degree in co-relation 1795. Up to 267 conditions per place. [2021-06-11 16:25:40,687 INFO L151 LiptonReduction]: Number of co-enabled transitions 398 [2021-06-11 16:25:40,690 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:25:40,690 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:25:40,690 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-06-11 16:25:40,691 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 53 transitions, 760 flow [2021-06-11 16:25:40,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 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 16:25:40,691 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:25:40,691 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:25:40,691 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-11 16:25:40,691 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:25:40,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:25:40,691 INFO L82 PathProgramCache]: Analyzing trace with hash -452949235, now seen corresponding path program 1 times [2021-06-11 16:25:40,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:25:40,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719434209] [2021-06-11 16:25:40,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:25:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:25:40,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:40,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:25:40,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:40,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:25:40,712 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 16:25:40,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:25:40,718 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 16:25:40,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719434209] [2021-06-11 16:25:40,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:25:40,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 16:25:40,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221213888] [2021-06-11 16:25:40,719 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:25:40,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:25:40,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:25:40,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:25:40,719 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 118 [2021-06-11 16:25:40,720 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 53 transitions, 760 flow. Second operand has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 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 16:25:40,720 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:25:40,720 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 118 [2021-06-11 16:25:40,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:25:40,770 INFO L129 PetriNetUnfolder]: 210/525 cut-off events. [2021-06-11 16:25:40,770 INFO L130 PetriNetUnfolder]: For 2530/2882 co-relation queries the response was YES. [2021-06-11 16:25:40,772 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2264 conditions, 525 events. 210/525 cut-off events. For 2530/2882 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 3744 event pairs, 67 based on Foata normal form. 42/516 useless extension candidates. Maximal degree in co-relation 2226. Up to 375 conditions per place. [2021-06-11 16:25:40,773 INFO L132 encePairwiseOnDemand]: 110/118 looper letters, 11 selfloop transitions, 23 changer transitions 8/58 dead transitions. [2021-06-11 16:25:40,773 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 58 transitions, 936 flow [2021-06-11 16:25:40,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:25:40,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:25:40,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2021-06-11 16:25:40,774 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7860169491525424 [2021-06-11 16:25:40,774 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 371 transitions. [2021-06-11 16:25:40,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 371 transitions. [2021-06-11 16:25:40,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:25:40,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 371 transitions. [2021-06-11 16:25:40,775 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 16:25:40,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 16:25:40,776 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 16:25:40,776 INFO L185 Difference]: Start difference. First operand has 62 places, 53 transitions, 760 flow. Second operand 4 states and 371 transitions. [2021-06-11 16:25:40,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 58 transitions, 936 flow [2021-06-11 16:25:40,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 58 transitions, 912 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-06-11 16:25:40,782 INFO L241 Difference]: Finished difference. Result has 65 places, 48 transitions, 696 flow [2021-06-11 16:25:40,783 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=696, PETRI_PLACES=65, PETRI_TRANSITIONS=48} [2021-06-11 16:25:40,783 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 38 predicate places. [2021-06-11 16:25:40,783 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:25:40,783 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 48 transitions, 696 flow [2021-06-11 16:25:40,783 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 48 transitions, 696 flow [2021-06-11 16:25:40,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 48 transitions, 696 flow [2021-06-11 16:25:40,815 INFO L129 PetriNetUnfolder]: 202/511 cut-off events. [2021-06-11 16:25:40,815 INFO L130 PetriNetUnfolder]: For 2314/2438 co-relation queries the response was YES. [2021-06-11 16:25:40,817 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2078 conditions, 511 events. 202/511 cut-off events. For 2314/2438 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 3639 event pairs, 68 based on Foata normal form. 19/495 useless extension candidates. Maximal degree in co-relation 2040. Up to 373 conditions per place. [2021-06-11 16:25:40,820 INFO L151 LiptonReduction]: Number of co-enabled transitions 344 [2021-06-11 16:25:40,823 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:25:40,823 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:25:40,823 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40 [2021-06-11 16:25:40,824 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 48 transitions, 696 flow [2021-06-11 16:25:40,824 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 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 16:25:40,824 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:25:40,824 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:25:40,824 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-11 16:25:40,824 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:25:40,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:25:40,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1358000717, now seen corresponding path program 1 times [2021-06-11 16:25:40,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:25:40,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030690572] [2021-06-11 16:25:40,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:25:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:25:40,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:40,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:25:40,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:40,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:25:40,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:40,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 16:25:40,850 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 16:25:40,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030690572] [2021-06-11 16:25:40,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:25:40,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 16:25:40,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609332973] [2021-06-11 16:25:40,851 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 16:25:40,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:25:40,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 16:25:40,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 16:25:40,851 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 118 [2021-06-11 16:25:40,852 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 48 transitions, 696 flow. Second operand has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 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 16:25:40,852 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:25:40,852 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 118 [2021-06-11 16:25:40,852 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:25:40,924 INFO L129 PetriNetUnfolder]: 169/472 cut-off events. [2021-06-11 16:25:40,924 INFO L130 PetriNetUnfolder]: For 2204/2935 co-relation queries the response was YES. [2021-06-11 16:25:40,926 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2166 conditions, 472 events. 169/472 cut-off events. For 2204/2935 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 3494 event pairs, 9 based on Foata normal form. 228/670 useless extension candidates. Maximal degree in co-relation 2126. Up to 361 conditions per place. [2021-06-11 16:25:40,927 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 5 selfloop transitions, 7 changer transitions 23/58 dead transitions. [2021-06-11 16:25:40,927 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 58 transitions, 800 flow [2021-06-11 16:25:40,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 16:25:40,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 16:25:40,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 620 transitions. [2021-06-11 16:25:40,928 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7506053268765133 [2021-06-11 16:25:40,928 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 620 transitions. [2021-06-11 16:25:40,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 620 transitions. [2021-06-11 16:25:40,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:25:40,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 620 transitions. [2021-06-11 16:25:40,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 88.57142857142857) internal successors, (620), 7 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 16:25:40,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 118.0) internal successors, (944), 8 states have internal predecessors, (944), 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 16:25:40,931 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 118.0) internal successors, (944), 8 states have internal predecessors, (944), 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 16:25:40,931 INFO L185 Difference]: Start difference. First operand has 65 places, 48 transitions, 696 flow. Second operand 7 states and 620 transitions. [2021-06-11 16:25:40,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 58 transitions, 800 flow [2021-06-11 16:25:40,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 58 transitions, 737 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-06-11 16:25:40,936 INFO L241 Difference]: Finished difference. Result has 71 places, 35 transitions, 533 flow [2021-06-11 16:25:40,936 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=633, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=533, PETRI_PLACES=71, PETRI_TRANSITIONS=35} [2021-06-11 16:25:40,936 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 44 predicate places. [2021-06-11 16:25:40,936 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:25:40,936 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 35 transitions, 533 flow [2021-06-11 16:25:40,936 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 35 transitions, 533 flow [2021-06-11 16:25:40,937 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 35 transitions, 533 flow [2021-06-11 16:25:40,943 INFO L129 PetriNetUnfolder]: 24/90 cut-off events. [2021-06-11 16:25:40,943 INFO L130 PetriNetUnfolder]: For 655/747 co-relation queries the response was YES. [2021-06-11 16:25:40,944 INFO L84 FinitePrefix]: Finished finitePrefix Result has 565 conditions, 90 events. 24/90 cut-off events. For 655/747 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 338 event pairs, 3 based on Foata normal form. 5/92 useless extension candidates. Maximal degree in co-relation 525. Up to 61 conditions per place. [2021-06-11 16:25:40,944 INFO L151 LiptonReduction]: Number of co-enabled transitions 124 [2021-06-11 16:25:40,946 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:25:40,946 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:25:40,946 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-06-11 16:25:40,946 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 35 transitions, 533 flow [2021-06-11 16:25:40,947 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 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 16:25:40,947 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:25:40,947 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:25:40,947 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-11 16:25:40,947 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:25:40,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:25:40,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1448427234, now seen corresponding path program 1 times [2021-06-11 16:25:40,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:25:40,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386617438] [2021-06-11 16:25:40,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:25:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:25:40,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:40,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:25:40,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:40,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:25:40,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:40,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:25:40,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:25:40,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 16:25:41,001 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 16:25:41,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386617438] [2021-06-11 16:25:41,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:25:41,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 16:25:41,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757325810] [2021-06-11 16:25:41,002 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 16:25:41,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:25:41,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 16:25:41,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-11 16:25:41,003 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 118 [2021-06-11 16:25:41,003 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 35 transitions, 533 flow. Second operand has 6 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 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 16:25:41,003 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:25:41,003 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 118 [2021-06-11 16:25:41,003 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:25:41,038 INFO L129 PetriNetUnfolder]: 21/81 cut-off events. [2021-06-11 16:25:41,038 INFO L130 PetriNetUnfolder]: For 514/637 co-relation queries the response was YES. [2021-06-11 16:25:41,038 INFO L84 FinitePrefix]: Finished finitePrefix Result has 540 conditions, 81 events. 21/81 cut-off events. For 514/637 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 294 event pairs, 0 based on Foata normal form. 35/113 useless extension candidates. Maximal degree in co-relation 515. Up to 58 conditions per place. [2021-06-11 16:25:41,038 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 0 selfloop transitions, 0 changer transitions 38/38 dead transitions. [2021-06-11 16:25:41,038 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 38 transitions, 575 flow [2021-06-11 16:25:41,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 16:25:41,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 16:25:41,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 611 transitions. [2021-06-11 16:25:41,040 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7397094430992736 [2021-06-11 16:25:41,040 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 611 transitions. [2021-06-11 16:25:41,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 611 transitions. [2021-06-11 16:25:41,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:25:41,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 611 transitions. [2021-06-11 16:25:41,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.28571428571429) internal successors, (611), 7 states have internal predecessors, (611), 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 16:25:41,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 118.0) internal successors, (944), 8 states have internal predecessors, (944), 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 16:25:41,042 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 118.0) internal successors, (944), 8 states have internal predecessors, (944), 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 16:25:41,042 INFO L185 Difference]: Start difference. First operand has 66 places, 35 transitions, 533 flow. Second operand 7 states and 611 transitions. [2021-06-11 16:25:41,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 38 transitions, 575 flow [2021-06-11 16:25:41,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 38 transitions, 409 flow, removed 18 selfloop flow, removed 15 redundant places. [2021-06-11 16:25:41,045 INFO L241 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2021-06-11 16:25:41,045 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2021-06-11 16:25:41,045 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 29 predicate places. [2021-06-11 16:25:41,045 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:25:41,045 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 0 transitions, 0 flow [2021-06-11 16:25:41,045 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 0 transitions, 0 flow [2021-06-11 16:25:41,045 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 16:25:41,045 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 16:25:41,045 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:25:41,045 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 16:25:41,045 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 16:25:41,046 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:25:41,046 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:25:41,046 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-06-11 16:25:41,046 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 16:25:41,046 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 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 16:25:41,046 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-11 16:25:41,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 04:25:41 BasicIcfg [2021-06-11 16:25:41,049 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 16:25:41,049 INFO L168 Benchmark]: Toolchain (without parser) took 4635.82 ms. Allocated memory was 337.6 MB in the beginning and 408.9 MB in the end (delta: 71.3 MB). Free memory was 300.3 MB in the beginning and 369.1 MB in the end (delta: -68.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.0 GB. [2021-06-11 16:25:41,050 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 337.6 MB. Free memory was 319.0 MB in the beginning and 319.0 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 16:25:41,050 INFO L168 Benchmark]: CACSL2BoogieTranslator took 404.50 ms. Allocated memory is still 337.6 MB. Free memory was 300.2 MB in the beginning and 299.8 MB in the end (delta: 352.1 kB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. [2021-06-11 16:25:41,050 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.69 ms. Allocated memory is still 337.6 MB. Free memory was 299.8 MB in the beginning and 297.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 16:25:41,050 INFO L168 Benchmark]: Boogie Preprocessor took 14.55 ms. Allocated memory is still 337.6 MB. Free memory was 297.7 MB in the beginning and 296.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 16:25:41,050 INFO L168 Benchmark]: RCFGBuilder took 361.86 ms. Allocated memory is still 337.6 MB. Free memory was 296.7 MB in the beginning and 272.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-11 16:25:41,050 INFO L168 Benchmark]: TraceAbstraction took 3807.76 ms. Allocated memory was 337.6 MB in the beginning and 408.9 MB in the end (delta: 71.3 MB). Free memory was 272.6 MB in the beginning and 369.1 MB in the end (delta: -96.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 16:25:41,051 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 337.6 MB. Free memory was 319.0 MB in the beginning and 319.0 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 404.50 ms. Allocated memory is still 337.6 MB. Free memory was 300.2 MB in the beginning and 299.8 MB in the end (delta: 352.1 kB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 41.69 ms. Allocated memory is still 337.6 MB. Free memory was 299.8 MB in the beginning and 297.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 14.55 ms. Allocated memory is still 337.6 MB. Free memory was 297.7 MB in the beginning and 296.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 361.86 ms. Allocated memory is still 337.6 MB. Free memory was 296.7 MB in the beginning and 272.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3807.76 ms. Allocated memory was 337.6 MB in the beginning and 408.9 MB in the end (delta: 71.3 MB). Free memory was 272.6 MB in the beginning and 369.1 MB in the end (delta: -96.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2162.2ms, 67 PlacesBefore, 27 PlacesAfterwards, 58 TransitionsBefore, 18 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 6 FixpointIterations, 16 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 45 TotalNumberOfCompositions, 1792 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1024, positive: 941, positive conditional: 941, positive unconditional: 0, negative: 83, negative conditional: 83, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1024, positive: 941, positive conditional: 0, positive unconditional: 941, negative: 83, negative conditional: 0, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1024, positive: 941, positive conditional: 0, positive unconditional: 941, negative: 83, negative conditional: 0, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 754, positive: 704, positive conditional: 0, positive unconditional: 704, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 754, positive: 683, positive conditional: 0, positive unconditional: 683, negative: 71, negative conditional: 0, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 71, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 235, positive: 83, positive conditional: 0, positive unconditional: 83, negative: 152, negative conditional: 0, negative unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1024, positive: 237, positive conditional: 0, positive unconditional: 237, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 754, unknown conditional: 0, unknown unconditional: 754] , Statistics on independence cache: Total cache size (in pairs): 754, Positive cache size: 704, Positive conditional cache size: 0, Positive unconditional cache size: 704, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.4ms, 25 PlacesBefore, 24 PlacesAfterwards, 17 TransitionsBefore, 17 TransitionsAfterwards, 126 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 138 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 53, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 53, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 53, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 14, negative conditional: 0, negative unconditional: 14, 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: 53, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 754, Positive cache size: 704, Positive conditional cache size: 0, Positive unconditional cache size: 704, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.5ms, 28 PlacesBefore, 28 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 142 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 15 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, 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: 6, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 757, Positive cache size: 707, Positive conditional cache size: 0, Positive unconditional cache size: 707, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, Eliminated conditions: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.3ms, 32 PlacesBefore, 32 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 172 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 22 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 9, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 759, Positive cache size: 709, Positive conditional cache size: 0, Positive unconditional cache size: 709, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, Eliminated conditions: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.1ms, 38 PlacesBefore, 38 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 206 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 31 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 1, negative conditional: 0, negative unconditional: 1, 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: 9, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 759, Positive cache size: 709, Positive conditional cache size: 0, Positive unconditional cache size: 709, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, Eliminated conditions: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.9ms, 44 PlacesBefore, 44 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 234 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 39 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 11, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 1, negative conditional: 0, negative unconditional: 1, 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: 11, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 759, Positive cache size: 709, Positive conditional cache size: 0, Positive unconditional cache size: 709, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, Eliminated conditions: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.1ms, 50 PlacesBefore, 50 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 232 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 39 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 1, negative conditional: 0, negative unconditional: 1, 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: 9, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 759, Positive cache size: 709, Positive conditional cache size: 0, Positive unconditional cache size: 709, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, Eliminated conditions: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.6ms, 57 PlacesBefore, 57 PlacesAfterwards, 54 TransitionsBefore, 54 TransitionsAfterwards, 400 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): 759, Positive cache size: 709, Positive conditional cache size: 0, Positive unconditional cache size: 709, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.9ms, 62 PlacesBefore, 62 PlacesAfterwards, 53 TransitionsBefore, 53 TransitionsAfterwards, 398 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): 759, Positive cache size: 709, Positive conditional cache size: 0, Positive unconditional cache size: 709, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.3ms, 65 PlacesBefore, 65 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 344 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): 759, Positive cache size: 709, Positive conditional cache size: 0, Positive unconditional cache size: 709, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.5ms, 71 PlacesBefore, 66 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 124 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): 759, Positive cache size: 709, Positive conditional cache size: 0, Positive unconditional cache size: 709, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.4ms, 56 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): 759, Positive cache size: 709, Positive conditional cache size: 0, Positive unconditional cache size: 709, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, 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, 72 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 1.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3686.0ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 580.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2249.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 88 SDtfs, 28 SDslu, 44 SDs, 0 SdLazy, 135 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 111.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 117.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=760occurred in iteration=8, InterpolantAutomatonStates: 48, 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: 21.2ms SsaConstructionTime, 124.4ms SatisfiabilityAnalysisTime, 354.5ms InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 542 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...