/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 00:43:34,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 00:43:34,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 00:43:34,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-26 00:43:34,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 00:43:34,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 00:43:34,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 00:43:34,668 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-RepeatedSemanticLbeWithPredicates.epf [2021-03-26 00:43:34,705 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 00:43:34,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 00:43:34,709 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 00:43:34,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 00:43:34,710 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 00:43:34,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 00:43:34,710 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 00:43:34,710 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 00:43:34,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 00:43:34,711 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 00:43:34,711 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 00:43:34,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 00:43:34,712 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 00:43:34,712 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 00:43:34,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 00:43:34,712 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 00:43:34,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 00:43:34,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 00:43:34,713 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 00:43:34,713 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 00:43:34,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 00:43:34,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:43:34,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 00:43:34,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 00:43:34,714 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 00:43:34,714 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 00:43:34,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 00:43:34,715 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 00:43:34,715 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 00:43:34,715 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 00:43:34,715 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 00:43:35,064 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 00:43:35,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 00:43:35,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 00:43:35,107 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 00:43:35,108 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 00:43:35,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2021-03-26 00:43:35,168 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81c90a9ac/6f73a6d874de448a9b22751c40793056/FLAG7c6b13c1d [2021-03-26 00:43:35,647 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 00:43:35,648 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2021-03-26 00:43:35,662 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81c90a9ac/6f73a6d874de448a9b22751c40793056/FLAG7c6b13c1d [2021-03-26 00:43:35,998 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81c90a9ac/6f73a6d874de448a9b22751c40793056 [2021-03-26 00:43:36,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 00:43:36,002 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 00:43:36,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 00:43:36,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 00:43:36,007 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 00:43:36,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:43:35" (1/1) ... [2021-03-26 00:43:36,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c769b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:36, skipping insertion in model container [2021-03-26 00:43:36,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:43:35" (1/1) ... [2021-03-26 00:43:36,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 00:43:36,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 00:43:36,217 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/safe019_tso.opt.i[949,962] [2021-03-26 00:43:36,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:43:36,385 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 00:43:36,400 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/safe019_tso.opt.i[949,962] [2021-03-26 00:43:36,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:43:36,519 INFO L208 MainTranslator]: Completed translation [2021-03-26 00:43:36,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:36 WrapperNode [2021-03-26 00:43:36,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 00:43:36,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 00:43:36,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 00:43:36,523 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 00:43:36,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:36" (1/1) ... [2021-03-26 00:43:36,561 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:36" (1/1) ... [2021-03-26 00:43:36,585 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 00:43:36,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 00:43:36,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 00:43:36,586 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 00:43:36,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:36" (1/1) ... [2021-03-26 00:43:36,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:36" (1/1) ... [2021-03-26 00:43:36,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:36" (1/1) ... [2021-03-26 00:43:36,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:36" (1/1) ... [2021-03-26 00:43:36,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:36" (1/1) ... [2021-03-26 00:43:36,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:36" (1/1) ... [2021-03-26 00:43:36,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:36" (1/1) ... [2021-03-26 00:43:36,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 00:43:36,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 00:43:36,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 00:43:36,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 00:43:36,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:36" (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 [2021-03-26 00:43:36,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 00:43:36,704 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 00:43:36,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 00:43:36,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 00:43:36,705 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 00:43:36,705 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 00:43:36,706 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 00:43:36,706 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 00:43:36,706 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 00:43:36,706 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 00:43:36,706 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-26 00:43:36,707 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-26 00:43:36,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 00:43:36,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 00:43:36,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 00:43:36,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 00:43:36,709 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 00:43:37,083 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 00:43:37,083 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 00:43:37,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:43:37 BoogieIcfgContainer [2021-03-26 00:43:37,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 00:43:37,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 00:43:37,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 00:43:37,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 00:43:37,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 12:43:35" (1/3) ... [2021-03-26 00:43:37,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6058ce62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:43:37, skipping insertion in model container [2021-03-26 00:43:37,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:36" (2/3) ... [2021-03-26 00:43:37,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6058ce62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:43:37, skipping insertion in model container [2021-03-26 00:43:37,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:43:37" (3/3) ... [2021-03-26 00:43:37,092 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.opt.i [2021-03-26 00:43:37,097 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 00:43:37,102 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 00:43:37,103 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 00:43:37,128 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,128 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,128 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,128 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,129 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,129 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,129 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,129 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,129 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,129 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,130 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,130 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,130 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,130 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,130 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,130 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,131 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,131 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,131 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,131 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,131 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,132 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,132 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,132 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,132 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,132 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,132 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,133 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,133 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,133 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,133 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,133 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,133 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,134 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,134 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,134 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,135 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,135 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,135 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,135 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,135 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,135 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,136 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,136 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,136 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,136 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,136 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,136 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,138 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,138 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,139 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,139 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,144 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,144 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,145 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,145 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,149 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,149 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,150 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,150 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,159 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,159 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,159 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,159 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:37,162 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 00:43:37,180 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-26 00:43:37,198 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 00:43:37,198 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 00:43:37,199 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 00:43:37,199 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 00:43:37,199 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 00:43:37,199 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 00:43:37,199 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 00:43:37,199 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 00:43:37,210 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2021-03-26 00:43:37,282 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-03-26 00:43:37,283 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:43:37,288 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-03-26 00:43:37,289 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 86 transitions, 192 flow [2021-03-26 00:43:37,304 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 68 transitions, 148 flow [2021-03-26 00:43:37,305 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:37,319 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 68 transitions, 148 flow [2021-03-26 00:43:37,324 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 68 transitions, 148 flow [2021-03-26 00:43:37,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 68 transitions, 148 flow [2021-03-26 00:43:37,358 INFO L129 PetriNetUnfolder]: 1/68 cut-off events. [2021-03-26 00:43:37,359 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:43:37,359 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 68 events. 1/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2021-03-26 00:43:37,362 INFO L142 LiptonReduction]: Number of co-enabled transitions 1250 [2021-03-26 00:43:38,983 INFO L154 LiptonReduction]: Checked pairs total: 1269 [2021-03-26 00:43:38,984 INFO L156 LiptonReduction]: Total number of compositions: 43 [2021-03-26 00:43:38,989 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1685 [2021-03-26 00:43:39,000 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-26 00:43:39,000 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:43:39,000 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:43:39,001 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:43:39,001 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:43:39,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:43:39,005 INFO L82 PathProgramCache]: Analyzing trace with hash 2002329809, now seen corresponding path program 1 times [2021-03-26 00:43:39,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:43:39,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778779814] [2021-03-26 00:43:39,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:43:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:43:39,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:39,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:43:39,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:39,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:39,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:43:39,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778779814] [2021-03-26 00:43:39,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:43:39,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:43:39,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923149920] [2021-03-26 00:43:39,263 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:43:39,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:43:39,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:43:39,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:43:39,274 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 129 [2021-03-26 00:43:39,277 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:39,277 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:43:39,277 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 129 [2021-03-26 00:43:39,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:43:39,293 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-03-26 00:43:39,293 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:43:39,293 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 25 events. 0/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs, 0 based on Foata normal form. 1/26 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 00:43:39,294 INFO L132 encePairwiseOnDemand]: 126/129 looper letters, 1 selfloop transitions, 2 changer transitions 0/25 dead transitions. [2021-03-26 00:43:39,295 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 25 transitions, 68 flow [2021-03-26 00:43:39,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:43:39,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:43:39,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 355 transitions. [2021-03-26 00:43:39,307 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.917312661498708 [2021-03-26 00:43:39,308 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 355 transitions. [2021-03-26 00:43:39,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 355 transitions. [2021-03-26 00:43:39,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:43:39,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 355 transitions. [2021-03-26 00:43:39,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 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) [2021-03-26 00:43:39,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:39,322 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:39,323 INFO L185 Difference]: Start difference. First operand has 38 places, 25 transitions, 62 flow. Second operand 3 states and 355 transitions. [2021-03-26 00:43:39,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 25 transitions, 68 flow [2021-03-26 00:43:39,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 25 transitions, 64 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-26 00:43:39,328 INFO L241 Difference]: Finished difference. Result has 37 places, 25 transitions, 66 flow [2021-03-26 00:43:39,329 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=37, PETRI_TRANSITIONS=25} [2021-03-26 00:43:39,330 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2021-03-26 00:43:39,330 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:39,331 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 25 transitions, 66 flow [2021-03-26 00:43:39,331 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 25 transitions, 66 flow [2021-03-26 00:43:39,331 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 25 transitions, 66 flow [2021-03-26 00:43:39,335 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-03-26 00:43:39,335 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-26 00:43:39,336 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 25 events. 0/25 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 23 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 00:43:39,336 INFO L142 LiptonReduction]: Number of co-enabled transitions 196 [2021-03-26 00:43:39,613 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-03-26 00:43:39,904 INFO L154 LiptonReduction]: Checked pairs total: 502 [2021-03-26 00:43:39,904 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 00:43:39,905 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 574 [2021-03-26 00:43:39,906 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 21 transitions, 58 flow [2021-03-26 00:43:39,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:39,907 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:43:39,907 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:43:39,907 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 00:43:39,907 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:43:39,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:43:39,908 INFO L82 PathProgramCache]: Analyzing trace with hash 233500185, now seen corresponding path program 1 times [2021-03-26 00:43:39,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:43:39,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957450638] [2021-03-26 00:43:39,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:43:39,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:43:40,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:40,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:43:40,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:40,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:40,031 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:43:40,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:43:40,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:43:40,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957450638] [2021-03-26 00:43:40,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:43:40,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:43:40,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692428710] [2021-03-26 00:43:40,042 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:43:40,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:43:40,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:43:40,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:43:40,045 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 133 [2021-03-26 00:43:40,045 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 21 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:40,046 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:43:40,046 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 133 [2021-03-26 00:43:40,046 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:43:40,082 INFO L129 PetriNetUnfolder]: 28/99 cut-off events. [2021-03-26 00:43:40,083 INFO L130 PetriNetUnfolder]: For 22/34 co-relation queries the response was YES. [2021-03-26 00:43:40,083 INFO L84 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 99 events. 28/99 cut-off events. For 22/34 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 393 event pairs, 7 based on Foata normal form. 7/99 useless extension candidates. Maximal degree in co-relation 186. Up to 46 conditions per place. [2021-03-26 00:43:40,084 INFO L132 encePairwiseOnDemand]: 125/133 looper letters, 7 selfloop transitions, 7 changer transitions 0/27 dead transitions. [2021-03-26 00:43:40,084 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 27 transitions, 104 flow [2021-03-26 00:43:40,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:43:40,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:43:40,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 432 transitions. [2021-03-26 00:43:40,088 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8120300751879699 [2021-03-26 00:43:40,088 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 432 transitions. [2021-03-26 00:43:40,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 432 transitions. [2021-03-26 00:43:40,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:43:40,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 432 transitions. [2021-03-26 00:43:40,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:40,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:40,098 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:40,098 INFO L185 Difference]: Start difference. First operand has 33 places, 21 transitions, 58 flow. Second operand 4 states and 432 transitions. [2021-03-26 00:43:40,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 27 transitions, 104 flow [2021-03-26 00:43:40,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 27 transitions, 96 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:43:40,100 INFO L241 Difference]: Finished difference. Result has 36 places, 24 transitions, 93 flow [2021-03-26 00:43:40,100 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=93, PETRI_PLACES=36, PETRI_TRANSITIONS=24} [2021-03-26 00:43:40,101 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places. [2021-03-26 00:43:40,101 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:40,101 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 24 transitions, 93 flow [2021-03-26 00:43:40,101 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 24 transitions, 93 flow [2021-03-26 00:43:40,102 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 24 transitions, 93 flow [2021-03-26 00:43:40,110 INFO L129 PetriNetUnfolder]: 21/82 cut-off events. [2021-03-26 00:43:40,111 INFO L130 PetriNetUnfolder]: For 25/26 co-relation queries the response was YES. [2021-03-26 00:43:40,111 INFO L84 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 82 events. 21/82 cut-off events. For 25/26 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 317 event pairs, 12 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 168. Up to 41 conditions per place. [2021-03-26 00:43:40,112 INFO L142 LiptonReduction]: Number of co-enabled transitions 196 [2021-03-26 00:43:40,285 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 00:43:40,514 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 00:43:40,596 INFO L154 LiptonReduction]: Checked pairs total: 144 [2021-03-26 00:43:40,596 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:43:40,596 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 495 [2021-03-26 00:43:40,597 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 89 flow [2021-03-26 00:43:40,598 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:40,598 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:43:40,598 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:43:40,601 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 00:43:40,601 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:43:40,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:43:40,602 INFO L82 PathProgramCache]: Analyzing trace with hash 872834431, now seen corresponding path program 1 times [2021-03-26 00:43:40,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:43:40,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055855630] [2021-03-26 00:43:40,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:43:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:43:40,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:40,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:43:40,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:40,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:40,669 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:43:40,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:43:40,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:43:40,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055855630] [2021-03-26 00:43:40,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:43:40,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:43:40,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111489247] [2021-03-26 00:43:40,679 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:43:40,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:43:40,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:43:40,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:43:40,681 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 134 [2021-03-26 00:43:40,682 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 89 flow. Second operand has 4 states, 4 states have (on average 101.25) internal successors, (405), 4 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:40,682 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:43:40,682 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 134 [2021-03-26 00:43:40,682 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:43:40,772 INFO L129 PetriNetUnfolder]: 107/248 cut-off events. [2021-03-26 00:43:40,772 INFO L130 PetriNetUnfolder]: For 190/392 co-relation queries the response was YES. [2021-03-26 00:43:40,775 INFO L84 FinitePrefix]: Finished finitePrefix Result has 682 conditions, 248 events. 107/248 cut-off events. For 190/392 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1170 event pairs, 14 based on Foata normal form. 10/248 useless extension candidates. Maximal degree in co-relation 669. Up to 106 conditions per place. [2021-03-26 00:43:40,780 INFO L132 encePairwiseOnDemand]: 126/134 looper letters, 12 selfloop transitions, 19 changer transitions 0/43 dead transitions. [2021-03-26 00:43:40,780 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 43 transitions, 246 flow [2021-03-26 00:43:40,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:43:40,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:43:40,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 527 transitions. [2021-03-26 00:43:40,785 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7865671641791044 [2021-03-26 00:43:40,785 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 527 transitions. [2021-03-26 00:43:40,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 527 transitions. [2021-03-26 00:43:40,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:43:40,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 527 transitions. [2021-03-26 00:43:40,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.4) internal successors, (527), 5 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:40,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:40,793 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:40,793 INFO L185 Difference]: Start difference. First operand has 35 places, 23 transitions, 89 flow. Second operand 5 states and 527 transitions. [2021-03-26 00:43:40,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 43 transitions, 246 flow [2021-03-26 00:43:40,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 43 transitions, 224 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 00:43:40,797 INFO L241 Difference]: Finished difference. Result has 41 places, 37 transitions, 234 flow [2021-03-26 00:43:40,797 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=234, PETRI_PLACES=41, PETRI_TRANSITIONS=37} [2021-03-26 00:43:40,797 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2021-03-26 00:43:40,797 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:40,798 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 37 transitions, 234 flow [2021-03-26 00:43:40,802 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 37 transitions, 234 flow [2021-03-26 00:43:40,803 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 37 transitions, 234 flow [2021-03-26 00:43:40,827 INFO L129 PetriNetUnfolder]: 82/223 cut-off events. [2021-03-26 00:43:40,827 INFO L130 PetriNetUnfolder]: For 235/331 co-relation queries the response was YES. [2021-03-26 00:43:40,828 INFO L84 FinitePrefix]: Finished finitePrefix Result has 743 conditions, 223 events. 82/223 cut-off events. For 235/331 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1189 event pairs, 9 based on Foata normal form. 0/215 useless extension candidates. Maximal degree in co-relation 729. Up to 98 conditions per place. [2021-03-26 00:43:40,831 INFO L142 LiptonReduction]: Number of co-enabled transitions 314 [2021-03-26 00:43:40,843 INFO L154 LiptonReduction]: Checked pairs total: 148 [2021-03-26 00:43:40,844 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:43:40,844 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47 [2021-03-26 00:43:40,845 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 234 flow [2021-03-26 00:43:40,845 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 101.25) internal successors, (405), 4 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:40,846 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:43:40,846 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:43:40,846 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 00:43:40,846 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:43:40,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:43:40,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1816077863, now seen corresponding path program 1 times [2021-03-26 00:43:40,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:43:40,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881160526] [2021-03-26 00:43:40,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:43:40,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:43:40,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:40,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:40,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:40,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:40,915 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:43:40,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:43:40,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:43:40,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881160526] [2021-03-26 00:43:40,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:43:40,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:43:40,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562707427] [2021-03-26 00:43:40,926 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:43:40,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:43:40,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:43:40,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:43:40,928 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 134 [2021-03-26 00:43:40,929 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 234 flow. Second operand has 5 states, 5 states have (on average 100.8) internal successors, (504), 5 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:40,929 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:43:40,929 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 134 [2021-03-26 00:43:40,930 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:43:40,999 INFO L129 PetriNetUnfolder]: 89/244 cut-off events. [2021-03-26 00:43:41,000 INFO L130 PetriNetUnfolder]: For 657/1274 co-relation queries the response was YES. [2021-03-26 00:43:41,001 INFO L84 FinitePrefix]: Finished finitePrefix Result has 965 conditions, 244 events. 89/244 cut-off events. For 657/1274 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1351 event pairs, 7 based on Foata normal form. 26/263 useless extension candidates. Maximal degree in co-relation 949. Up to 102 conditions per place. [2021-03-26 00:43:41,002 INFO L132 encePairwiseOnDemand]: 126/134 looper letters, 14 selfloop transitions, 9 changer transitions 14/49 dead transitions. [2021-03-26 00:43:41,002 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 49 transitions, 406 flow [2021-03-26 00:43:41,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:43:41,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:43:41,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 522 transitions. [2021-03-26 00:43:41,005 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7791044776119403 [2021-03-26 00:43:41,005 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 522 transitions. [2021-03-26 00:43:41,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 522 transitions. [2021-03-26 00:43:41,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:43:41,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 522 transitions. [2021-03-26 00:43:41,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 104.4) internal successors, (522), 5 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,008 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,009 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,009 INFO L185 Difference]: Start difference. First operand has 41 places, 37 transitions, 234 flow. Second operand 5 states and 522 transitions. [2021-03-26 00:43:41,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 49 transitions, 406 flow [2021-03-26 00:43:41,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 49 transitions, 406 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 00:43:41,015 INFO L241 Difference]: Finished difference. Result has 47 places, 29 transitions, 199 flow [2021-03-26 00:43:41,015 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=199, PETRI_PLACES=47, PETRI_TRANSITIONS=29} [2021-03-26 00:43:41,015 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 9 predicate places. [2021-03-26 00:43:41,016 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:41,016 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 29 transitions, 199 flow [2021-03-26 00:43:41,016 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 29 transitions, 199 flow [2021-03-26 00:43:41,016 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 29 transitions, 199 flow [2021-03-26 00:43:41,027 INFO L129 PetriNetUnfolder]: 30/107 cut-off events. [2021-03-26 00:43:41,027 INFO L130 PetriNetUnfolder]: For 179/204 co-relation queries the response was YES. [2021-03-26 00:43:41,028 INFO L84 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 107 events. 30/107 cut-off events. For 179/204 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 462 event pairs, 12 based on Foata normal form. 2/106 useless extension candidates. Maximal degree in co-relation 395. Up to 55 conditions per place. [2021-03-26 00:43:41,029 INFO L142 LiptonReduction]: Number of co-enabled transitions 218 [2021-03-26 00:43:41,066 INFO L154 LiptonReduction]: Checked pairs total: 72 [2021-03-26 00:43:41,066 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:43:41,066 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 50 [2021-03-26 00:43:41,069 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 29 transitions, 203 flow [2021-03-26 00:43:41,070 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 100.8) internal successors, (504), 5 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,070 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:43:41,070 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:43:41,070 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 00:43:41,070 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:43:41,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:43:41,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1143708279, now seen corresponding path program 1 times [2021-03-26 00:43:41,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:43:41,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428988410] [2021-03-26 00:43:41,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:43:41,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:43:41,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:41,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:41,161 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:43:41,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:43:41,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:43:41,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428988410] [2021-03-26 00:43:41,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:43:41,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:43:41,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979401348] [2021-03-26 00:43:41,172 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:43:41,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:43:41,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:43:41,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:43:41,173 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 135 [2021-03-26 00:43:41,174 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 29 transitions, 203 flow. Second operand has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,174 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:43:41,174 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 135 [2021-03-26 00:43:41,174 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:43:41,205 INFO L129 PetriNetUnfolder]: 24/89 cut-off events. [2021-03-26 00:43:41,206 INFO L130 PetriNetUnfolder]: For 280/385 co-relation queries the response was YES. [2021-03-26 00:43:41,206 INFO L84 FinitePrefix]: Finished finitePrefix Result has 411 conditions, 89 events. 24/89 cut-off events. For 280/385 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 340 event pairs, 0 based on Foata normal form. 4/90 useless extension candidates. Maximal degree in co-relation 391. Up to 41 conditions per place. [2021-03-26 00:43:41,207 INFO L132 encePairwiseOnDemand]: 128/135 looper letters, 9 selfloop transitions, 11 changer transitions 0/34 dead transitions. [2021-03-26 00:43:41,207 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 34 transitions, 292 flow [2021-03-26 00:43:41,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:43:41,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:43:41,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 433 transitions. [2021-03-26 00:43:41,209 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8018518518518518 [2021-03-26 00:43:41,209 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 433 transitions. [2021-03-26 00:43:41,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 433 transitions. [2021-03-26 00:43:41,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:43:41,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 433 transitions. [2021-03-26 00:43:41,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,212 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,212 INFO L185 Difference]: Start difference. First operand has 47 places, 29 transitions, 203 flow. Second operand 4 states and 433 transitions. [2021-03-26 00:43:41,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 34 transitions, 292 flow [2021-03-26 00:43:41,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 34 transitions, 240 flow, removed 6 selfloop flow, removed 7 redundant places. [2021-03-26 00:43:41,216 INFO L241 Difference]: Finished difference. Result has 44 places, 32 transitions, 215 flow [2021-03-26 00:43:41,217 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=215, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2021-03-26 00:43:41,217 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 6 predicate places. [2021-03-26 00:43:41,217 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:41,217 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 32 transitions, 215 flow [2021-03-26 00:43:41,217 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 32 transitions, 215 flow [2021-03-26 00:43:41,218 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 32 transitions, 215 flow [2021-03-26 00:43:41,227 INFO L129 PetriNetUnfolder]: 26/94 cut-off events. [2021-03-26 00:43:41,227 INFO L130 PetriNetUnfolder]: For 142/155 co-relation queries the response was YES. [2021-03-26 00:43:41,227 INFO L84 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 94 events. 26/94 cut-off events. For 142/155 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 361 event pairs, 4 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 342. Up to 42 conditions per place. [2021-03-26 00:43:41,228 INFO L142 LiptonReduction]: Number of co-enabled transitions 236 [2021-03-26 00:43:41,231 INFO L154 LiptonReduction]: Checked pairs total: 118 [2021-03-26 00:43:41,232 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:43:41,232 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-03-26 00:43:41,234 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 215 flow [2021-03-26 00:43:41,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,234 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:43:41,234 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:43:41,234 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 00:43:41,234 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:43:41,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:43:41,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1981686712, now seen corresponding path program 1 times [2021-03-26 00:43:41,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:43:41,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078982564] [2021-03-26 00:43:41,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:43:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:43:41,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:41,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:43:41,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:41,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:41,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:41,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:41,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:43:41,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078982564] [2021-03-26 00:43:41,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:43:41,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:43:41,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182055101] [2021-03-26 00:43:41,319 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:43:41,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:43:41,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:43:41,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:43:41,320 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 135 [2021-03-26 00:43:41,321 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 215 flow. Second operand has 4 states, 4 states have (on average 113.25) internal successors, (453), 4 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,322 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:43:41,322 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 135 [2021-03-26 00:43:41,322 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:43:41,354 INFO L129 PetriNetUnfolder]: 24/107 cut-off events. [2021-03-26 00:43:41,354 INFO L130 PetriNetUnfolder]: For 247/325 co-relation queries the response was YES. [2021-03-26 00:43:41,354 INFO L84 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 107 events. 24/107 cut-off events. For 247/325 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 469 event pairs, 4 based on Foata normal form. 9/113 useless extension candidates. Maximal degree in co-relation 400. Up to 44 conditions per place. [2021-03-26 00:43:41,355 INFO L132 encePairwiseOnDemand]: 132/135 looper letters, 6 selfloop transitions, 4 changer transitions 2/35 dead transitions. [2021-03-26 00:43:41,355 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 35 transitions, 270 flow [2021-03-26 00:43:41,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:43:41,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:43:41,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 457 transitions. [2021-03-26 00:43:41,357 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8462962962962963 [2021-03-26 00:43:41,357 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 457 transitions. [2021-03-26 00:43:41,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 457 transitions. [2021-03-26 00:43:41,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:43:41,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 457 transitions. [2021-03-26 00:43:41,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,360 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,360 INFO L185 Difference]: Start difference. First operand has 44 places, 32 transitions, 215 flow. Second operand 4 states and 457 transitions. [2021-03-26 00:43:41,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 35 transitions, 270 flow [2021-03-26 00:43:41,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 35 transitions, 249 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-03-26 00:43:41,364 INFO L241 Difference]: Finished difference. Result has 48 places, 33 transitions, 222 flow [2021-03-26 00:43:41,364 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=222, PETRI_PLACES=48, PETRI_TRANSITIONS=33} [2021-03-26 00:43:41,364 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 10 predicate places. [2021-03-26 00:43:41,364 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:41,364 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 33 transitions, 222 flow [2021-03-26 00:43:41,365 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 33 transitions, 222 flow [2021-03-26 00:43:41,365 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 33 transitions, 222 flow [2021-03-26 00:43:41,376 INFO L129 PetriNetUnfolder]: 24/107 cut-off events. [2021-03-26 00:43:41,377 INFO L130 PetriNetUnfolder]: For 226/241 co-relation queries the response was YES. [2021-03-26 00:43:41,377 INFO L84 FinitePrefix]: Finished finitePrefix Result has 375 conditions, 107 events. 24/107 cut-off events. For 226/241 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 488 event pairs, 4 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 357. Up to 44 conditions per place. [2021-03-26 00:43:41,378 INFO L142 LiptonReduction]: Number of co-enabled transitions 246 [2021-03-26 00:43:41,384 INFO L154 LiptonReduction]: Checked pairs total: 101 [2021-03-26 00:43:41,384 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:43:41,384 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-03-26 00:43:41,386 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 33 transitions, 222 flow [2021-03-26 00:43:41,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 113.25) internal successors, (453), 4 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,386 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:43:41,386 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:43:41,386 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 00:43:41,387 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:43:41,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:43:41,388 INFO L82 PathProgramCache]: Analyzing trace with hash 2034251521, now seen corresponding path program 1 times [2021-03-26 00:43:41,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:43:41,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612518258] [2021-03-26 00:43:41,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:43:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:43:41,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:41,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:41,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:41,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:41,472 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:43:41,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:43:41,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:43:41,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612518258] [2021-03-26 00:43:41,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:43:41,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:43:41,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200496158] [2021-03-26 00:43:41,487 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:43:41,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:43:41,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:43:41,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:43:41,491 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 135 [2021-03-26 00:43:41,491 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 33 transitions, 222 flow. Second operand has 5 states, 5 states have (on average 105.0) internal successors, (525), 5 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,492 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:43:41,492 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 135 [2021-03-26 00:43:41,492 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:43:41,534 INFO L129 PetriNetUnfolder]: 22/124 cut-off events. [2021-03-26 00:43:41,534 INFO L130 PetriNetUnfolder]: For 353/459 co-relation queries the response was YES. [2021-03-26 00:43:41,535 INFO L84 FinitePrefix]: Finished finitePrefix Result has 487 conditions, 124 events. 22/124 cut-off events. For 353/459 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 629 event pairs, 0 based on Foata normal form. 5/126 useless extension candidates. Maximal degree in co-relation 467. Up to 48 conditions per place. [2021-03-26 00:43:41,535 INFO L132 encePairwiseOnDemand]: 128/135 looper letters, 7 selfloop transitions, 9 changer transitions 12/42 dead transitions. [2021-03-26 00:43:41,535 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 42 transitions, 359 flow [2021-03-26 00:43:41,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:43:41,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:43:41,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 539 transitions. [2021-03-26 00:43:41,537 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7985185185185185 [2021-03-26 00:43:41,537 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 539 transitions. [2021-03-26 00:43:41,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 539 transitions. [2021-03-26 00:43:41,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:43:41,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 539 transitions. [2021-03-26 00:43:41,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.8) internal successors, (539), 5 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,541 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,541 INFO L185 Difference]: Start difference. First operand has 48 places, 33 transitions, 222 flow. Second operand 5 states and 539 transitions. [2021-03-26 00:43:41,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 42 transitions, 359 flow [2021-03-26 00:43:41,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 42 transitions, 357 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 00:43:41,546 INFO L241 Difference]: Finished difference. Result has 53 places, 30 transitions, 230 flow [2021-03-26 00:43:41,546 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=230, PETRI_PLACES=53, PETRI_TRANSITIONS=30} [2021-03-26 00:43:41,547 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 15 predicate places. [2021-03-26 00:43:41,547 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:41,547 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 30 transitions, 230 flow [2021-03-26 00:43:41,547 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 30 transitions, 230 flow [2021-03-26 00:43:41,547 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 30 transitions, 230 flow [2021-03-26 00:43:41,554 INFO L129 PetriNetUnfolder]: 9/62 cut-off events. [2021-03-26 00:43:41,554 INFO L130 PetriNetUnfolder]: For 149/150 co-relation queries the response was YES. [2021-03-26 00:43:41,554 INFO L84 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 62 events. 9/62 cut-off events. For 149/150 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 216 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 227. Up to 26 conditions per place. [2021-03-26 00:43:41,555 INFO L142 LiptonReduction]: Number of co-enabled transitions 158 [2021-03-26 00:43:41,584 INFO L154 LiptonReduction]: Checked pairs total: 284 [2021-03-26 00:43:41,584 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:43:41,584 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-03-26 00:43:41,585 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 30 transitions, 231 flow [2021-03-26 00:43:41,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 105.0) internal successors, (525), 5 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,585 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:43:41,585 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:43:41,585 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 00:43:41,585 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:43:41,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:43:41,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1575919046, now seen corresponding path program 1 times [2021-03-26 00:43:41,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:43:41,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881039112] [2021-03-26 00:43:41,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:43:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:43:41,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:41,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:43:41,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:41,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:41,637 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:43:41,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:43:41,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:43:41,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881039112] [2021-03-26 00:43:41,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:43:41,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:43:41,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934303232] [2021-03-26 00:43:41,653 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:43:41,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:43:41,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:43:41,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:43:41,654 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 136 [2021-03-26 00:43:41,655 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 30 transitions, 231 flow. Second operand has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,655 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:43:41,655 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 136 [2021-03-26 00:43:41,655 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:43:41,683 INFO L129 PetriNetUnfolder]: 5/62 cut-off events. [2021-03-26 00:43:41,684 INFO L130 PetriNetUnfolder]: For 234/274 co-relation queries the response was YES. [2021-03-26 00:43:41,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 62 events. 5/62 cut-off events. For 234/274 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 214 event pairs, 0 based on Foata normal form. 15/77 useless extension candidates. Maximal degree in co-relation 251. Up to 24 conditions per place. [2021-03-26 00:43:41,684 INFO L132 encePairwiseOnDemand]: 129/136 looper letters, 6 selfloop transitions, 6 changer transitions 6/31 dead transitions. [2021-03-26 00:43:41,684 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 31 transitions, 275 flow [2021-03-26 00:43:41,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:43:41,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:43:41,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 430 transitions. [2021-03-26 00:43:41,686 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7904411764705882 [2021-03-26 00:43:41,686 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 430 transitions. [2021-03-26 00:43:41,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 430 transitions. [2021-03-26 00:43:41,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:43:41,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 430 transitions. [2021-03-26 00:43:41,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,689 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,689 INFO L185 Difference]: Start difference. First operand has 53 places, 30 transitions, 231 flow. Second operand 4 states and 430 transitions. [2021-03-26 00:43:41,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 31 transitions, 275 flow [2021-03-26 00:43:41,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 31 transitions, 243 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-03-26 00:43:41,693 INFO L241 Difference]: Finished difference. Result has 52 places, 25 transitions, 174 flow [2021-03-26 00:43:41,693 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=174, PETRI_PLACES=52, PETRI_TRANSITIONS=25} [2021-03-26 00:43:41,693 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 14 predicate places. [2021-03-26 00:43:41,694 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:41,694 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 25 transitions, 174 flow [2021-03-26 00:43:41,694 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 25 transitions, 174 flow [2021-03-26 00:43:41,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 25 transitions, 174 flow [2021-03-26 00:43:41,698 INFO L129 PetriNetUnfolder]: 2/47 cut-off events. [2021-03-26 00:43:41,698 INFO L130 PetriNetUnfolder]: For 128/132 co-relation queries the response was YES. [2021-03-26 00:43:41,699 INFO L84 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 47 events. 2/47 cut-off events. For 128/132 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 136 event pairs, 0 based on Foata normal form. 1/48 useless extension candidates. Maximal degree in co-relation 155. Up to 18 conditions per place. [2021-03-26 00:43:41,699 INFO L142 LiptonReduction]: Number of co-enabled transitions 132 [2021-03-26 00:43:41,701 INFO L154 LiptonReduction]: Checked pairs total: 95 [2021-03-26 00:43:41,701 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:43:41,701 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 00:43:41,704 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 25 transitions, 174 flow [2021-03-26 00:43:41,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,704 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:43:41,704 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:43:41,704 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 00:43:41,704 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:43:41,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:43:41,705 INFO L82 PathProgramCache]: Analyzing trace with hash 114299040, now seen corresponding path program 1 times [2021-03-26 00:43:41,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:43:41,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120454230] [2021-03-26 00:43:41,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:43:41,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:43:41,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:41,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:43:41,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:41,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:41,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:41,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:41,752 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:43:41,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:43:41,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:43:41,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120454230] [2021-03-26 00:43:41,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:43:41,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:43:41,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355217482] [2021-03-26 00:43:41,763 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:43:41,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:43:41,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:43:41,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:43:41,765 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 136 [2021-03-26 00:43:41,765 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 25 transitions, 174 flow. Second operand has 5 states, 5 states have (on average 105.0) internal successors, (525), 5 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,765 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:43:41,765 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 136 [2021-03-26 00:43:41,766 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:43:41,801 INFO L129 PetriNetUnfolder]: 1/50 cut-off events. [2021-03-26 00:43:41,802 INFO L130 PetriNetUnfolder]: For 193/219 co-relation queries the response was YES. [2021-03-26 00:43:41,802 INFO L84 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 50 events. 1/50 cut-off events. For 193/219 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 159 event pairs, 0 based on Foata normal form. 12/62 useless extension candidates. Maximal degree in co-relation 184. Up to 19 conditions per place. [2021-03-26 00:43:41,802 INFO L132 encePairwiseOnDemand]: 129/136 looper letters, 5 selfloop transitions, 5 changer transitions 4/27 dead transitions. [2021-03-26 00:43:41,802 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 27 transitions, 220 flow [2021-03-26 00:43:41,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:43:41,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:43:41,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 639 transitions. [2021-03-26 00:43:41,805 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7830882352941176 [2021-03-26 00:43:41,805 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 639 transitions. [2021-03-26 00:43:41,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 639 transitions. [2021-03-26 00:43:41,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:43:41,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 639 transitions. [2021-03-26 00:43:41,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 106.5) internal successors, (639), 6 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 136.0) internal successors, (952), 7 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,809 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 136.0) internal successors, (952), 7 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,809 INFO L185 Difference]: Start difference. First operand has 51 places, 25 transitions, 174 flow. Second operand 6 states and 639 transitions. [2021-03-26 00:43:41,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 27 transitions, 220 flow [2021-03-26 00:43:41,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 27 transitions, 173 flow, removed 3 selfloop flow, removed 9 redundant places. [2021-03-26 00:43:41,811 INFO L241 Difference]: Finished difference. Result has 48 places, 23 transitions, 127 flow [2021-03-26 00:43:41,811 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=127, PETRI_PLACES=48, PETRI_TRANSITIONS=23} [2021-03-26 00:43:41,812 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 10 predicate places. [2021-03-26 00:43:41,812 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:41,812 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 23 transitions, 127 flow [2021-03-26 00:43:41,812 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 23 transitions, 127 flow [2021-03-26 00:43:41,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 23 transitions, 127 flow [2021-03-26 00:43:41,816 INFO L129 PetriNetUnfolder]: 0/42 cut-off events. [2021-03-26 00:43:41,816 INFO L130 PetriNetUnfolder]: For 62/63 co-relation queries the response was YES. [2021-03-26 00:43:41,816 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 42 events. 0/42 cut-off events. For 62/63 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 124 event pairs, 0 based on Foata normal form. 1/43 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2021-03-26 00:43:41,817 INFO L142 LiptonReduction]: Number of co-enabled transitions 106 [2021-03-26 00:43:41,818 INFO L154 LiptonReduction]: Checked pairs total: 80 [2021-03-26 00:43:41,819 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:43:41,819 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-26 00:43:41,820 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 23 transitions, 127 flow [2021-03-26 00:43:41,820 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 105.0) internal successors, (525), 5 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,820 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:43:41,820 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:43:41,820 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 00:43:41,822 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:43:41,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:43:41,822 INFO L82 PathProgramCache]: Analyzing trace with hash 82755176, now seen corresponding path program 1 times [2021-03-26 00:43:41,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:43:41,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479979315] [2021-03-26 00:43:41,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:43:41,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:43:41,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:41,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:41,871 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 00:43:41,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:43:41,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:43:41,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479979315] [2021-03-26 00:43:41,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:43:41,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:43:41,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581055985] [2021-03-26 00:43:41,881 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:43:41,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:43:41,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:43:41,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:43:41,882 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2021-03-26 00:43:41,882 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 23 transitions, 127 flow. Second operand has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,883 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:43:41,883 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2021-03-26 00:43:41,883 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:43:41,952 INFO L129 PetriNetUnfolder]: 220/417 cut-off events. [2021-03-26 00:43:41,952 INFO L130 PetriNetUnfolder]: For 736/802 co-relation queries the response was YES. [2021-03-26 00:43:41,953 INFO L84 FinitePrefix]: Finished finitePrefix Result has 986 conditions, 417 events. 220/417 cut-off events. For 736/802 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 2261 event pairs, 109 based on Foata normal form. 14/385 useless extension candidates. Maximal degree in co-relation 969. Up to 288 conditions per place. [2021-03-26 00:43:41,954 INFO L132 encePairwiseOnDemand]: 129/136 looper letters, 6 selfloop transitions, 4 changer transitions 10/36 dead transitions. [2021-03-26 00:43:41,955 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 36 transitions, 193 flow [2021-03-26 00:43:41,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:43:41,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:43:41,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 552 transitions. [2021-03-26 00:43:41,957 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8117647058823529 [2021-03-26 00:43:41,957 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 552 transitions. [2021-03-26 00:43:41,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 552 transitions. [2021-03-26 00:43:41,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:43:41,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 552 transitions. [2021-03-26 00:43:41,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 110.4) internal successors, (552), 5 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,961 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:41,961 INFO L185 Difference]: Start difference. First operand has 46 places, 23 transitions, 127 flow. Second operand 5 states and 552 transitions. [2021-03-26 00:43:41,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 36 transitions, 193 flow [2021-03-26 00:43:41,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 36 transitions, 173 flow, removed 2 selfloop flow, removed 6 redundant places. [2021-03-26 00:43:41,964 INFO L241 Difference]: Finished difference. Result has 47 places, 26 transitions, 147 flow [2021-03-26 00:43:41,965 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=147, PETRI_PLACES=47, PETRI_TRANSITIONS=26} [2021-03-26 00:43:41,965 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 9 predicate places. [2021-03-26 00:43:41,965 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:41,966 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 26 transitions, 147 flow [2021-03-26 00:43:41,966 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 26 transitions, 147 flow [2021-03-26 00:43:41,966 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 26 transitions, 147 flow [2021-03-26 00:43:42,004 INFO L129 PetriNetUnfolder]: 152/294 cut-off events. [2021-03-26 00:43:42,005 INFO L130 PetriNetUnfolder]: For 396/450 co-relation queries the response was YES. [2021-03-26 00:43:42,005 INFO L84 FinitePrefix]: Finished finitePrefix Result has 910 conditions, 294 events. 152/294 cut-off events. For 396/450 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1491 event pairs, 91 based on Foata normal form. 0/268 useless extension candidates. Maximal degree in co-relation 894. Up to 254 conditions per place. [2021-03-26 00:43:42,007 INFO L142 LiptonReduction]: Number of co-enabled transitions 112 [2021-03-26 00:43:42,051 INFO L154 LiptonReduction]: Checked pairs total: 12 [2021-03-26 00:43:42,051 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:43:42,051 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 86 [2021-03-26 00:43:42,052 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 26 transitions, 150 flow [2021-03-26 00:43:42,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:42,052 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:43:42,052 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:43:42,052 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 00:43:42,053 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:43:42,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:43:42,053 INFO L82 PathProgramCache]: Analyzing trace with hash -43013610, now seen corresponding path program 1 times [2021-03-26 00:43:42,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:43:42,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61990085] [2021-03-26 00:43:42,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:43:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:43:42,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:42,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:42,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:42,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:42,105 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 00:43:42,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:43:42,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:43:42,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61990085] [2021-03-26 00:43:42,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:43:42,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:43:42,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690436833] [2021-03-26 00:43:42,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:43:42,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:43:42,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:43:42,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:43:42,116 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 137 [2021-03-26 00:43:42,117 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 26 transitions, 150 flow. Second operand has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:42,117 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:43:42,117 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 137 [2021-03-26 00:43:42,117 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:43:42,191 INFO L129 PetriNetUnfolder]: 138/300 cut-off events. [2021-03-26 00:43:42,191 INFO L130 PetriNetUnfolder]: For 764/1149 co-relation queries the response was YES. [2021-03-26 00:43:42,192 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1172 conditions, 300 events. 138/300 cut-off events. For 764/1149 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 1543 event pairs, 28 based on Foata normal form. 27/309 useless extension candidates. Maximal degree in co-relation 1154. Up to 257 conditions per place. [2021-03-26 00:43:42,193 INFO L132 encePairwiseOnDemand]: 129/137 looper letters, 6 selfloop transitions, 7 changer transitions 10/39 dead transitions. [2021-03-26 00:43:42,193 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 39 transitions, 272 flow [2021-03-26 00:43:42,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:43:42,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:43:42,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 661 transitions. [2021-03-26 00:43:42,196 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8041362530413625 [2021-03-26 00:43:42,196 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 661 transitions. [2021-03-26 00:43:42,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 661 transitions. [2021-03-26 00:43:42,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:43:42,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 661 transitions. [2021-03-26 00:43:42,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 110.16666666666667) internal successors, (661), 6 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:42,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:42,200 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:42,200 INFO L185 Difference]: Start difference. First operand has 45 places, 26 transitions, 150 flow. Second operand 6 states and 661 transitions. [2021-03-26 00:43:42,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 39 transitions, 272 flow [2021-03-26 00:43:42,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 39 transitions, 266 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 00:43:42,202 INFO L241 Difference]: Finished difference. Result has 51 places, 29 transitions, 204 flow [2021-03-26 00:43:42,202 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=204, PETRI_PLACES=51, PETRI_TRANSITIONS=29} [2021-03-26 00:43:42,202 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 13 predicate places. [2021-03-26 00:43:42,202 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:42,203 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 29 transitions, 204 flow [2021-03-26 00:43:42,203 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 29 transitions, 204 flow [2021-03-26 00:43:42,203 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 29 transitions, 204 flow [2021-03-26 00:43:42,215 INFO L129 PetriNetUnfolder]: 61/167 cut-off events. [2021-03-26 00:43:42,215 INFO L130 PetriNetUnfolder]: For 472/548 co-relation queries the response was YES. [2021-03-26 00:43:42,216 INFO L84 FinitePrefix]: Finished finitePrefix Result has 744 conditions, 167 events. 61/167 cut-off events. For 472/548 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 778 event pairs, 25 based on Foata normal form. 6/166 useless extension candidates. Maximal degree in co-relation 725. Up to 124 conditions per place. [2021-03-26 00:43:42,217 INFO L142 LiptonReduction]: Number of co-enabled transitions 108 [2021-03-26 00:43:42,220 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:43:42,220 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:43:42,220 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-03-26 00:43:42,221 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 29 transitions, 204 flow [2021-03-26 00:43:42,222 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:42,222 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:43:42,222 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:43:42,222 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 00:43:42,222 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:43:42,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:43:42,222 INFO L82 PathProgramCache]: Analyzing trace with hash -836894379, now seen corresponding path program 1 times [2021-03-26 00:43:42,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:43:42,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057215325] [2021-03-26 00:43:42,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:43:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:43:42,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:42,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:42,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:42,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:42,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:42,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:42,265 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 00:43:42,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:43:42,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:43:42,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057215325] [2021-03-26 00:43:42,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:43:42,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:43:42,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739209761] [2021-03-26 00:43:42,280 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:43:42,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:43:42,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:43:42,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:43:42,282 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 137 [2021-03-26 00:43:42,283 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 29 transitions, 204 flow. Second operand has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:42,283 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:43:42,283 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 137 [2021-03-26 00:43:42,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:43:42,355 INFO L129 PetriNetUnfolder]: 50/151 cut-off events. [2021-03-26 00:43:42,356 INFO L130 PetriNetUnfolder]: For 605/803 co-relation queries the response was YES. [2021-03-26 00:43:42,356 INFO L84 FinitePrefix]: Finished finitePrefix Result has 778 conditions, 151 events. 50/151 cut-off events. For 605/803 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 702 event pairs, 3 based on Foata normal form. 38/182 useless extension candidates. Maximal degree in co-relation 757. Up to 119 conditions per place. [2021-03-26 00:43:42,357 INFO L132 encePairwiseOnDemand]: 129/137 looper letters, 3 selfloop transitions, 10 changer transitions 17/42 dead transitions. [2021-03-26 00:43:42,357 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 42 transitions, 382 flow [2021-03-26 00:43:42,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:43:42,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:43:42,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 770 transitions. [2021-03-26 00:43:42,359 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8029197080291971 [2021-03-26 00:43:42,359 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 770 transitions. [2021-03-26 00:43:42,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 770 transitions. [2021-03-26 00:43:42,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:43:42,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 770 transitions. [2021-03-26 00:43:42,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 110.0) internal successors, (770), 7 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:42,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 137.0) internal successors, (1096), 8 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:42,364 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 137.0) internal successors, (1096), 8 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:42,364 INFO L185 Difference]: Start difference. First operand has 49 places, 29 transitions, 204 flow. Second operand 7 states and 770 transitions. [2021-03-26 00:43:42,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 42 transitions, 382 flow [2021-03-26 00:43:42,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 42 transitions, 326 flow, removed 24 selfloop flow, removed 4 redundant places. [2021-03-26 00:43:42,367 INFO L241 Difference]: Finished difference. Result has 54 places, 25 transitions, 181 flow [2021-03-26 00:43:42,368 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=181, PETRI_PLACES=54, PETRI_TRANSITIONS=25} [2021-03-26 00:43:42,368 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 16 predicate places. [2021-03-26 00:43:42,368 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:42,368 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 25 transitions, 181 flow [2021-03-26 00:43:42,368 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 25 transitions, 181 flow [2021-03-26 00:43:42,369 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 25 transitions, 181 flow [2021-03-26 00:43:42,373 INFO L129 PetriNetUnfolder]: 6/36 cut-off events. [2021-03-26 00:43:42,373 INFO L130 PetriNetUnfolder]: For 110/118 co-relation queries the response was YES. [2021-03-26 00:43:42,373 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 36 events. 6/36 cut-off events. For 110/118 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 60 event pairs, 1 based on Foata normal form. 3/37 useless extension candidates. Maximal degree in co-relation 132. Up to 15 conditions per place. [2021-03-26 00:43:42,373 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-26 00:43:42,534 INFO L154 LiptonReduction]: Checked pairs total: 16 [2021-03-26 00:43:42,535 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 00:43:42,535 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 167 [2021-03-26 00:43:42,537 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 23 transitions, 182 flow [2021-03-26 00:43:42,538 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:42,538 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:43:42,538 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:43:42,538 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-26 00:43:42,539 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:43:42,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:43:42,540 INFO L82 PathProgramCache]: Analyzing trace with hash -153311821, now seen corresponding path program 1 times [2021-03-26 00:43:42,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:43:42,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455487210] [2021-03-26 00:43:42,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:43:42,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:43:42,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:42,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:42,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:42,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:42,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:42,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:42,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:42,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:42,606 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 00:43:42,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:43:42,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:43:42,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455487210] [2021-03-26 00:43:42,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:43:42,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 00:43:42,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235142215] [2021-03-26 00:43:42,619 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 00:43:42,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:43:42,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 00:43:42,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-26 00:43:42,621 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 140 [2021-03-26 00:43:42,622 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 23 transitions, 182 flow. Second operand has 7 states, 7 states have (on average 106.85714285714286) internal successors, (748), 7 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:42,622 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:43:42,622 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 140 [2021-03-26 00:43:42,622 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:43:42,658 INFO L129 PetriNetUnfolder]: 5/30 cut-off events. [2021-03-26 00:43:42,658 INFO L130 PetriNetUnfolder]: For 165/175 co-relation queries the response was YES. [2021-03-26 00:43:42,658 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 30 events. 5/30 cut-off events. For 165/175 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 58 event pairs, 0 based on Foata normal form. 8/35 useless extension candidates. Maximal degree in co-relation 123. Up to 11 conditions per place. [2021-03-26 00:43:42,658 INFO L132 encePairwiseOnDemand]: 132/140 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2021-03-26 00:43:42,658 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 22 transitions, 180 flow [2021-03-26 00:43:42,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:43:42,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:43:42,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 648 transitions. [2021-03-26 00:43:42,661 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7714285714285715 [2021-03-26 00:43:42,661 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 648 transitions. [2021-03-26 00:43:42,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 648 transitions. [2021-03-26 00:43:42,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:43:42,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 648 transitions. [2021-03-26 00:43:42,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 108.0) internal successors, (648), 6 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:42,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 140.0) internal successors, (980), 7 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:42,665 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 140.0) internal successors, (980), 7 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:42,665 INFO L185 Difference]: Start difference. First operand has 48 places, 23 transitions, 182 flow. Second operand 6 states and 648 transitions. [2021-03-26 00:43:42,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 22 transitions, 180 flow [2021-03-26 00:43:42,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 22 transitions, 126 flow, removed 13 selfloop flow, removed 11 redundant places. [2021-03-26 00:43:42,666 INFO L241 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2021-03-26 00:43:42,666 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2021-03-26 00:43:42,666 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2021-03-26 00:43:42,667 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:42,667 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 0 transitions, 0 flow [2021-03-26 00:43:42,667 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 0 transitions, 0 flow [2021-03-26 00:43:42,667 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 00:43:42,667 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 00:43:42,667 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:43:42,667 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-26 00:43:42,667 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 00:43:42,667 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:43:42,668 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:43:42,668 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 00:43:42,668 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 00:43:42,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 106.85714285714286) internal successors, (748), 7 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:42,669 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-26 00:43:42,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 12:43:42 BasicIcfg [2021-03-26 00:43:42,673 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 00:43:42,674 INFO L168 Benchmark]: Toolchain (without parser) took 6671.21 ms. Allocated memory was 255.9 MB in the beginning and 394.3 MB in the end (delta: 138.4 MB). Free memory was 235.1 MB in the beginning and 234.4 MB in the end (delta: 743.5 kB). Peak memory consumption was 138.5 MB. Max. memory is 16.0 GB. [2021-03-26 00:43:42,674 INFO L168 Benchmark]: CDTParser took 0.57 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:43:42,674 INFO L168 Benchmark]: CACSL2BoogieTranslator took 518.46 ms. Allocated memory was 255.9 MB in the beginning and 327.2 MB in the end (delta: 71.3 MB). Free memory was 235.1 MB in the beginning and 288.8 MB in the end (delta: -53.7 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:43:42,674 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.27 ms. Allocated memory is still 327.2 MB. Free memory was 288.8 MB in the beginning and 287.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:43:42,674 INFO L168 Benchmark]: Boogie Preprocessor took 34.48 ms. Allocated memory is still 327.2 MB. Free memory was 287.2 MB in the beginning and 285.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:43:42,675 INFO L168 Benchmark]: RCFGBuilder took 463.93 ms. Allocated memory is still 327.2 MB. Free memory was 285.6 MB in the beginning and 261.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-26 00:43:42,675 INFO L168 Benchmark]: TraceAbstraction took 5586.72 ms. Allocated memory was 327.2 MB in the beginning and 394.3 MB in the end (delta: 67.1 MB). Free memory was 261.0 MB in the beginning and 234.4 MB in the end (delta: 26.6 MB). Peak memory consumption was 94.2 MB. Max. memory is 16.0 GB. [2021-03-26 00:43:42,684 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 518.46 ms. Allocated memory was 255.9 MB in the beginning and 327.2 MB in the end (delta: 71.3 MB). Free memory was 235.1 MB in the beginning and 288.8 MB in the end (delta: -53.7 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 62.27 ms. Allocated memory is still 327.2 MB. Free memory was 288.8 MB in the beginning and 287.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 34.48 ms. Allocated memory is still 327.2 MB. Free memory was 287.2 MB in the beginning and 285.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 463.93 ms. Allocated memory is still 327.2 MB. Free memory was 285.6 MB in the beginning and 261.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5586.72 ms. Allocated memory was 327.2 MB in the beginning and 394.3 MB in the end (delta: 67.1 MB). Free memory was 261.0 MB in the beginning and 234.4 MB in the end (delta: 26.6 MB). Peak memory consumption was 94.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1660.9ms, 80 PlacesBefore, 38 PlacesAfterwards, 68 TransitionsBefore, 25 TransitionsAfterwards, 1250 CoEnabledTransitionPairs, 4 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 43 TotalNumberOfCompositions, 1269 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 878, positive: 850, positive conditional: 850, positive unconditional: 0, negative: 28, negative conditional: 28, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 759, positive: 735, positive conditional: 0, positive unconditional: 735, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 759, positive: 735, positive conditional: 0, positive unconditional: 735, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 759, positive: 718, positive conditional: 0, positive unconditional: 718, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 235, positive: 89, positive conditional: 0, positive unconditional: 89, negative: 147, negative conditional: 0, negative unconditional: 147, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 878, positive: 115, positive conditional: 115, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 759, unknown conditional: 759, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 31, Positive cache size: 27, Positive conditional cache size: 27, Positive unconditional cache size: 0, Negative cache size: 4, Negative conditional cache size: 4, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 573.3ms, 37 PlacesBefore, 33 PlacesAfterwards, 25 TransitionsBefore, 21 TransitionsAfterwards, 196 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 502 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 184, positive: 145, positive conditional: 145, positive unconditional: 0, negative: 39, negative conditional: 39, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 69, positive: 53, positive conditional: 11, positive unconditional: 42, negative: 16, negative conditional: 5, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 69, positive: 53, positive conditional: 11, positive unconditional: 42, negative: 16, negative conditional: 5, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 69, positive: 53, positive conditional: 0, positive unconditional: 53, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 16, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 16, negative conditional: 5, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 93, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 93, negative conditional: 32, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 184, positive: 92, positive conditional: 92, positive unconditional: 0, negative: 23, negative conditional: 23, negative unconditional: 0, unknown: 69, unknown conditional: 69, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 77, Positive cache size: 63, Positive conditional cache size: 63, Positive unconditional cache size: 0, Negative cache size: 14, Negative conditional cache size: 14, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 494.8ms, 36 PlacesBefore, 35 PlacesAfterwards, 24 TransitionsBefore, 23 TransitionsAfterwards, 196 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 144 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 32, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 1, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 1, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 32, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 82, Positive cache size: 67, Positive conditional cache size: 67, Positive unconditional cache size: 0, Negative cache size: 15, Negative conditional cache size: 15, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41.8ms, 41 PlacesBefore, 41 PlacesAfterwards, 37 TransitionsBefore, 37 TransitionsAfterwards, 314 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 148 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 16, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 16, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 83, Positive cache size: 68, Positive conditional cache size: 68, Positive unconditional cache size: 0, Negative cache size: 15, Negative conditional cache size: 15, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 50.2ms, 47 PlacesBefore, 47 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 218 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 72 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 12, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 62, Positive conditional cache size: 62, Positive unconditional cache size: 0, Negative cache size: 14, Negative conditional cache size: 14, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.4ms, 44 PlacesBefore, 44 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 236 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 118 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 77, Positive cache size: 63, Positive conditional cache size: 63, Positive unconditional cache size: 0, Negative cache size: 14, Negative conditional cache size: 14, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.3ms, 48 PlacesBefore, 48 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 246 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 101 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 77, Positive cache size: 63, Positive conditional cache size: 63, Positive unconditional cache size: 0, Negative cache size: 14, Negative conditional cache size: 14, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.9ms, 53 PlacesBefore, 53 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 158 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 284 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 27, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 27, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 57, Positive conditional cache size: 57, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.0ms, 52 PlacesBefore, 51 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 132 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 95 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 73, Positive cache size: 61, Positive conditional cache size: 61, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.7ms, 48 PlacesBefore, 46 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 106 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 80 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 2, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 2, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 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: 13, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 64, Positive conditional cache size: 64, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 85.4ms, 47 PlacesBefore, 45 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 112 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 12 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 12, 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: 12, positive: 12, positive conditional: 0, positive unconditional: 12, 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: 12, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 73, Positive cache size: 62, Positive conditional cache size: 62, Positive unconditional cache size: 0, Negative cache size: 11, Negative conditional cache size: 11, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.3ms, 51 PlacesBefore, 49 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 108 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 73, Positive cache size: 62, Positive conditional cache size: 62, Positive unconditional cache size: 0, Negative cache size: 11, Negative conditional cache size: 11, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 166.1ms, 54 PlacesBefore, 48 PlacesAfterwards, 25 TransitionsBefore, 23 TransitionsAfterwards, 74 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 16 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 16, positive: 16, positive conditional: 16, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 13, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 13, 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: 15, positive: 15, positive conditional: 0, positive unconditional: 15, 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: 16, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 18, Positive conditional cache size: 18, Positive unconditional cache size: 0, Negative cache size: 3, Negative conditional cache size: 3, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6ms, 41 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 18, Positive conditional cache size: 18, Positive unconditional cache size: 0, Negative cache size: 3, Negative conditional cache size: 3, Negative unconditional cache size: 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 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 5475.5ms, OverallIterations: 13, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 863.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1796.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 78 SDtfs, 64 SDslu, 58 SDs, 0 SdLazy, 267 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 208.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 215.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred in iteration=3, InterpolantAutomatonStates: 64, 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: 34.0ms SsaConstructionTime, 236.9ms SatisfiabilityAnalysisTime, 800.4ms InterpolantComputationTime, 185 NumberOfCodeBlocks, 185 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 172 ConstructedInterpolants, 0 QuantifiedInterpolants, 844 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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...