/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/safe030_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 00:48:45,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 00:48:45,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 00:48:45,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 00:48:45,058 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 00:48:45,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 00:48:45,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 00:48:45,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 00:48:45,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 00:48:45,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 00:48:45,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 00:48:45,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 00:48:45,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 00:48:45,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 00:48:45,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 00:48:45,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 00:48:45,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 00:48:45,087 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 00:48:45,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 00:48:45,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 00:48:45,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 00:48:45,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 00:48:45,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 00:48:45,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 00:48:45,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 00:48:45,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 00:48:45,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 00:48:45,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 00:48:45,128 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 00:48:45,166 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 00:48:45,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 00:48:45,170 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 00:48:45,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 00:48:45,170 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 00:48:45,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 00:48:45,170 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 00:48:45,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 00:48:45,171 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 00:48:45,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 00:48:45,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 00:48:45,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 00:48:45,172 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 00:48:45,172 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 00:48:45,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 00:48:45,172 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 00:48:45,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 00:48:45,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 00:48:45,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 00:48:45,173 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 00:48:45,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 00:48:45,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:48:45,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 00:48:45,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 00:48:45,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 00:48:45,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 00:48:45,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 00:48:45,174 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 00:48:45,175 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 00:48:45,175 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 00:48:45,175 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 00:48:45,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 00:48:45,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 00:48:45,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 00:48:45,508 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 00:48:45,509 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 00:48:45,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_rmo.opt.i [2021-03-26 00:48:45,578 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39856749c/54f7f981a5344270acfde596c73d22c5/FLAGe688ad3aa [2021-03-26 00:48:46,146 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 00:48:46,146 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_rmo.opt.i [2021-03-26 00:48:46,169 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39856749c/54f7f981a5344270acfde596c73d22c5/FLAGe688ad3aa [2021-03-26 00:48:46,583 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39856749c/54f7f981a5344270acfde596c73d22c5 [2021-03-26 00:48:46,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 00:48:46,588 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 00:48:46,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 00:48:46,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 00:48:46,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 00:48:46,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:48:46" (1/1) ... [2021-03-26 00:48:46,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66b14a9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:48:46, skipping insertion in model container [2021-03-26 00:48:46,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:48:46" (1/1) ... [2021-03-26 00:48:46,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 00:48:46,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 00:48:46,758 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_rmo.opt.i[949,962] [2021-03-26 00:48:46,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:48:46,996 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 00:48:47,007 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_rmo.opt.i[949,962] [2021-03-26 00:48:47,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:48:47,097 INFO L208 MainTranslator]: Completed translation [2021-03-26 00:48:47,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:48:47 WrapperNode [2021-03-26 00:48:47,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 00:48:47,099 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 00:48:47,099 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 00:48:47,099 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 00:48:47,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:48:47" (1/1) ... [2021-03-26 00:48:47,127 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:48:47" (1/1) ... [2021-03-26 00:48:47,154 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 00:48:47,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 00:48:47,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 00:48:47,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 00:48:47,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:48:47" (1/1) ... [2021-03-26 00:48:47,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:48:47" (1/1) ... [2021-03-26 00:48:47,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:48:47" (1/1) ... [2021-03-26 00:48:47,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:48:47" (1/1) ... [2021-03-26 00:48:47,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:48:47" (1/1) ... [2021-03-26 00:48:47,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:48:47" (1/1) ... [2021-03-26 00:48:47,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:48:47" (1/1) ... [2021-03-26 00:48:47,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 00:48:47,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 00:48:47,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 00:48:47,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 00:48:47,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:48:47" (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 00:48:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 00:48:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 00:48:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 00:48:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 00:48:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 00:48:47,254 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 00:48:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 00:48:47,255 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 00:48:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 00:48:47,255 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 00:48:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 00:48:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 00:48:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 00:48:47,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 00:48:47,257 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 00:48:48,818 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 00:48:48,819 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-26 00:48:48,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:48:48 BoogieIcfgContainer [2021-03-26 00:48:48,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 00:48:48,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 00:48:48,823 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 00:48:48,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 00:48:48,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 12:48:46" (1/3) ... [2021-03-26 00:48:48,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe41178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:48:48, skipping insertion in model container [2021-03-26 00:48:48,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:48:47" (2/3) ... [2021-03-26 00:48:48,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe41178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:48:48, skipping insertion in model container [2021-03-26 00:48:48,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:48:48" (3/3) ... [2021-03-26 00:48:48,828 INFO L111 eAbstractionObserver]: Analyzing ICFG safe030_rmo.opt.i [2021-03-26 00:48:48,834 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 00:48:48,838 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-26 00:48:48,838 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 00:48:48,872 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,872 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,872 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,872 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,873 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,873 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,873 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,873 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,873 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,873 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,873 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,874 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,874 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,874 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,874 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,874 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,874 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,874 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,875 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,875 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,875 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,875 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,876 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,876 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,876 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,876 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,876 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,877 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,877 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,877 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,877 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,877 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,878 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,878 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,879 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,879 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,879 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,879 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,880 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,880 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,881 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,881 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,881 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,881 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,881 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,881 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,881 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,881 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,883 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,883 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,883 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,883 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,884 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,884 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,884 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,884 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,884 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,885 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,885 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,885 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,885 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,885 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,885 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,886 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,886 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,886 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,886 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,886 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,887 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,887 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,887 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,887 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,889 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,889 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,889 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,890 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,892 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,892 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,892 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,892 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,892 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,893 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,893 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,893 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,893 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,893 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,899 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,899 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,899 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,899 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,900 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,900 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,900 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,900 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,900 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,900 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,901 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,901 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:48:48,932 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 00:48:48,949 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-26 00:48:48,966 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 00:48:48,966 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 00:48:48,966 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 00:48:48,966 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 00:48:48,966 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 00:48:48,966 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 00:48:48,966 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 00:48:48,967 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 00:48:48,976 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 95 transitions, 205 flow [2021-03-26 00:48:49,008 INFO L129 PetriNetUnfolder]: 2/92 cut-off events. [2021-03-26 00:48:49,009 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:48:49,012 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 2/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2021-03-26 00:48:49,012 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 95 transitions, 205 flow [2021-03-26 00:48:49,016 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 92 transitions, 193 flow [2021-03-26 00:48:49,017 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:48:49,028 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 92 transitions, 193 flow [2021-03-26 00:48:49,030 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 92 transitions, 193 flow [2021-03-26 00:48:49,032 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 92 transitions, 193 flow [2021-03-26 00:48:49,049 INFO L129 PetriNetUnfolder]: 2/92 cut-off events. [2021-03-26 00:48:49,049 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:48:49,050 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 2/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2021-03-26 00:48:49,052 INFO L142 LiptonReduction]: Number of co-enabled transitions 1578 [2021-03-26 00:48:50,523 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-26 00:48:50,916 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-26 00:48:51,025 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-26 00:48:52,025 WARN L205 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 185 [2021-03-26 00:48:52,302 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-03-26 00:48:53,674 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 310 DAG size of output: 266 [2021-03-26 00:48:54,289 WARN L205 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 263 [2021-03-26 00:48:55,211 INFO L154 LiptonReduction]: Checked pairs total: 2818 [2021-03-26 00:48:55,211 INFO L156 LiptonReduction]: Total number of compositions: 62 [2021-03-26 00:48:55,213 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6197 [2021-03-26 00:48:55,222 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-03-26 00:48:55,222 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:48:55,223 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:48:55,223 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:48:55,223 INFO L428 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:48:55,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:48:55,228 INFO L82 PathProgramCache]: Analyzing trace with hash 903762281, now seen corresponding path program 1 times [2021-03-26 00:48:55,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:48:55,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191877458] [2021-03-26 00:48:55,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:48:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:48:55,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:48:55,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:48:55,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:48:55,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:48:55,433 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 00:48:55,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191877458] [2021-03-26 00:48:55,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:48:55,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:48:55,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810942808] [2021-03-26 00:48:55,444 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:48:55,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:48:55,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:48:55,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:48:55,458 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 157 [2021-03-26 00:48:55,464 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 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 00:48:55,464 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:48:55,464 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 157 [2021-03-26 00:48:55,465 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:48:55,537 INFO L129 PetriNetUnfolder]: 16/90 cut-off events. [2021-03-26 00:48:55,537 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:48:55,539 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 90 events. 16/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 281 event pairs, 6 based on Foata normal form. 5/88 useless extension candidates. Maximal degree in co-relation 117. Up to 27 conditions per place. [2021-03-26 00:48:55,541 INFO L132 encePairwiseOnDemand]: 153/157 looper letters, 7 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2021-03-26 00:48:55,541 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 37 transitions, 101 flow [2021-03-26 00:48:55,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:48:55,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:48:55,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 426 transitions. [2021-03-26 00:48:55,561 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9044585987261147 [2021-03-26 00:48:55,561 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 426 transitions. [2021-03-26 00:48:55,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 426 transitions. [2021-03-26 00:48:55,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:48:55,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 426 transitions. [2021-03-26 00:48:55,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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 00:48:55,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 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 00:48:55,585 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 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 00:48:55,586 INFO L185 Difference]: Start difference. First operand has 46 places, 37 transitions, 83 flow. Second operand 3 states and 426 transitions. [2021-03-26 00:48:55,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 37 transitions, 101 flow [2021-03-26 00:48:55,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 37 transitions, 98 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 00:48:55,591 INFO L241 Difference]: Finished difference. Result has 43 places, 34 transitions, 78 flow [2021-03-26 00:48:55,592 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=43, PETRI_TRANSITIONS=34} [2021-03-26 00:48:55,593 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2021-03-26 00:48:55,593 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:48:55,593 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 34 transitions, 78 flow [2021-03-26 00:48:55,594 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 34 transitions, 78 flow [2021-03-26 00:48:55,594 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 34 transitions, 78 flow [2021-03-26 00:48:55,598 INFO L129 PetriNetUnfolder]: 0/34 cut-off events. [2021-03-26 00:48:55,599 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:48:55,599 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 34 events. 0/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 30 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 00:48:55,599 INFO L142 LiptonReduction]: Number of co-enabled transitions 318 [2021-03-26 00:48:55,900 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-26 00:48:56,021 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-26 00:48:56,389 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-26 00:48:56,681 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-26 00:48:57,274 WARN L205 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2021-03-26 00:48:57,873 WARN L205 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2021-03-26 00:48:58,353 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-03-26 00:48:58,636 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-03-26 00:48:59,806 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 277 DAG size of output: 276 [2021-03-26 00:49:00,382 WARN L205 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2021-03-26 00:49:01,029 INFO L154 LiptonReduction]: Checked pairs total: 863 [2021-03-26 00:49:01,029 INFO L156 LiptonReduction]: Total number of compositions: 11 [2021-03-26 00:49:01,030 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5437 [2021-03-26 00:49:01,031 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 24 transitions, 58 flow [2021-03-26 00:49:01,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 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 00:49:01,032 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:49:01,032 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:49:01,032 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 00:49:01,032 INFO L428 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:49:01,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:49:01,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1787014718, now seen corresponding path program 1 times [2021-03-26 00:49:01,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:49:01,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707845174] [2021-03-26 00:49:01,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:49:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:49:01,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:01,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:49:01,163 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-26 00:49:01,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 00:49:01,169 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 00:49:01,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707845174] [2021-03-26 00:49:01,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:49:01,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:49:01,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974018156] [2021-03-26 00:49:01,171 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:49:01,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:49:01,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:49:01,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:49:01,173 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 168 [2021-03-26 00:49:01,174 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 24 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 143.75) internal successors, (575), 4 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:49:01,174 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:49:01,174 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 168 [2021-03-26 00:49:01,174 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:49:01,215 INFO L129 PetriNetUnfolder]: 7/46 cut-off events. [2021-03-26 00:49:01,215 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:49:01,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 46 events. 7/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 111 event pairs, 1 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 64. Up to 10 conditions per place. [2021-03-26 00:49:01,216 INFO L132 encePairwiseOnDemand]: 163/168 looper letters, 3 selfloop transitions, 3 changer transitions 7/31 dead transitions. [2021-03-26 00:49:01,216 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 31 transitions, 96 flow [2021-03-26 00:49:01,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:49:01,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:49:01,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 728 transitions. [2021-03-26 00:49:01,218 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8666666666666667 [2021-03-26 00:49:01,219 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 728 transitions. [2021-03-26 00:49:01,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 728 transitions. [2021-03-26 00:49:01,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:49:01,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 728 transitions. [2021-03-26 00:49:01,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 145.6) internal successors, (728), 5 states have internal predecessors, (728), 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 00:49:01,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 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 00:49:01,224 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 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 00:49:01,224 INFO L185 Difference]: Start difference. First operand has 33 places, 24 transitions, 58 flow. Second operand 5 states and 728 transitions. [2021-03-26 00:49:01,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 31 transitions, 96 flow [2021-03-26 00:49:01,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 31 transitions, 92 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:49:01,225 INFO L241 Difference]: Finished difference. Result has 37 places, 24 transitions, 73 flow [2021-03-26 00:49:01,226 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=73, PETRI_PLACES=37, PETRI_TRANSITIONS=24} [2021-03-26 00:49:01,226 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -9 predicate places. [2021-03-26 00:49:01,226 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:49:01,226 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 24 transitions, 73 flow [2021-03-26 00:49:01,227 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 24 transitions, 73 flow [2021-03-26 00:49:01,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 24 transitions, 73 flow [2021-03-26 00:49:01,233 INFO L129 PetriNetUnfolder]: 3/34 cut-off events. [2021-03-26 00:49:01,233 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-26 00:49:01,234 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 34 events. 3/34 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 65 event pairs, 1 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 49. Up to 10 conditions per place. [2021-03-26 00:49:01,234 INFO L142 LiptonReduction]: Number of co-enabled transitions 212 [2021-03-26 00:49:01,957 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-26 00:49:02,076 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-26 00:49:02,336 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-26 00:49:02,483 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-26 00:49:02,487 INFO L154 LiptonReduction]: Checked pairs total: 618 [2021-03-26 00:49:02,487 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 00:49:02,487 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1261 [2021-03-26 00:49:02,488 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 69 flow [2021-03-26 00:49:02,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 143.75) internal successors, (575), 4 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:49:02,489 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:49:02,489 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:49:02,489 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 00:49:02,489 INFO L428 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:49:02,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:49:02,490 INFO L82 PathProgramCache]: Analyzing trace with hash -498930536, now seen corresponding path program 1 times [2021-03-26 00:49:02,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:49:02,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864964097] [2021-03-26 00:49:02,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:49:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:49:02,598 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-03-26 00:49:02,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 00:49:02,624 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-26 00:49:02,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 00:49:02,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:02,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 00:49:02,651 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 00:49:02,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864964097] [2021-03-26 00:49:02,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:49:02,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:49:02,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517607411] [2021-03-26 00:49:02,652 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:49:02,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:49:02,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:49:02,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:49:02,654 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 170 [2021-03-26 00:49:02,655 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 69 flow. Second operand has 5 states, 5 states have (on average 133.8) internal successors, (669), 5 states have internal predecessors, (669), 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 00:49:02,655 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:49:02,655 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 170 [2021-03-26 00:49:02,655 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:49:02,704 INFO L129 PetriNetUnfolder]: 55/133 cut-off events. [2021-03-26 00:49:02,705 INFO L130 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2021-03-26 00:49:02,705 INFO L84 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 133 events. 55/133 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 548 event pairs, 33 based on Foata normal form. 2/127 useless extension candidates. Maximal degree in co-relation 264. Up to 87 conditions per place. [2021-03-26 00:49:02,706 INFO L132 encePairwiseOnDemand]: 165/170 looper letters, 8 selfloop transitions, 5 changer transitions 0/28 dead transitions. [2021-03-26 00:49:02,707 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 28 transitions, 107 flow [2021-03-26 00:49:02,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:49:02,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:49:02,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 547 transitions. [2021-03-26 00:49:02,709 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8044117647058824 [2021-03-26 00:49:02,709 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 547 transitions. [2021-03-26 00:49:02,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 547 transitions. [2021-03-26 00:49:02,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:49:02,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 547 transitions. [2021-03-26 00:49:02,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 136.75) internal successors, (547), 4 states have internal predecessors, (547), 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 00:49:02,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 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 00:49:02,713 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 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 00:49:02,713 INFO L185 Difference]: Start difference. First operand has 31 places, 22 transitions, 69 flow. Second operand 4 states and 547 transitions. [2021-03-26 00:49:02,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 28 transitions, 107 flow [2021-03-26 00:49:02,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 28 transitions, 100 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-26 00:49:02,714 INFO L241 Difference]: Finished difference. Result has 34 places, 26 transitions, 96 flow [2021-03-26 00:49:02,714 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=96, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2021-03-26 00:49:02,715 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -12 predicate places. [2021-03-26 00:49:02,715 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:49:02,715 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 26 transitions, 96 flow [2021-03-26 00:49:02,715 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 26 transitions, 96 flow [2021-03-26 00:49:02,716 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 26 transitions, 96 flow [2021-03-26 00:49:02,722 INFO L129 PetriNetUnfolder]: 9/48 cut-off events. [2021-03-26 00:49:02,722 INFO L130 PetriNetUnfolder]: For 27/29 co-relation queries the response was YES. [2021-03-26 00:49:02,723 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 48 events. 9/48 cut-off events. For 27/29 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 156 event pairs, 4 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 98. Up to 18 conditions per place. [2021-03-26 00:49:02,723 INFO L142 LiptonReduction]: Number of co-enabled transitions 244 [2021-03-26 00:49:02,862 INFO L154 LiptonReduction]: Checked pairs total: 137 [2021-03-26 00:49:02,862 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:49:02,862 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 147 [2021-03-26 00:49:02,866 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 96 flow [2021-03-26 00:49:02,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 133.8) internal successors, (669), 5 states have internal predecessors, (669), 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 00:49:02,866 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:49:02,866 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:49:02,867 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 00:49:02,867 INFO L428 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:49:02,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:49:02,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1282934265, now seen corresponding path program 1 times [2021-03-26 00:49:02,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:49:02,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966894388] [2021-03-26 00:49:02,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:49:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:49:02,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:02,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:49:02,921 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 00:49:02,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966894388] [2021-03-26 00:49:02,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:49:02,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 00:49:02,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959762101] [2021-03-26 00:49:02,922 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:49:02,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:49:02,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:49:02,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:49:02,924 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 170 [2021-03-26 00:49:02,924 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:49:02,924 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:49:02,924 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 170 [2021-03-26 00:49:02,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:49:02,951 INFO L129 PetriNetUnfolder]: 21/75 cut-off events. [2021-03-26 00:49:02,951 INFO L130 PetriNetUnfolder]: For 103/112 co-relation queries the response was YES. [2021-03-26 00:49:02,951 INFO L84 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 75 events. 21/75 cut-off events. For 103/112 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 292 event pairs, 8 based on Foata normal form. 2/72 useless extension candidates. Maximal degree in co-relation 180. Up to 27 conditions per place. [2021-03-26 00:49:02,952 INFO L132 encePairwiseOnDemand]: 166/170 looper letters, 3 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2021-03-26 00:49:02,952 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 28 transitions, 112 flow [2021-03-26 00:49:02,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:49:02,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:49:02,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 460 transitions. [2021-03-26 00:49:02,957 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9019607843137255 [2021-03-26 00:49:02,957 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 460 transitions. [2021-03-26 00:49:02,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 460 transitions. [2021-03-26 00:49:02,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:49:02,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 460 transitions. [2021-03-26 00:49:02,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 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 00:49:02,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 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 00:49:02,960 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 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 00:49:02,960 INFO L185 Difference]: Start difference. First operand has 34 places, 26 transitions, 96 flow. Second operand 3 states and 460 transitions. [2021-03-26 00:49:02,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 28 transitions, 112 flow [2021-03-26 00:49:02,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 28 transitions, 112 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 00:49:02,961 INFO L241 Difference]: Finished difference. Result has 37 places, 28 transitions, 115 flow [2021-03-26 00:49:02,962 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=115, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2021-03-26 00:49:02,962 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -9 predicate places. [2021-03-26 00:49:02,962 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:49:02,962 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 28 transitions, 115 flow [2021-03-26 00:49:02,962 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 28 transitions, 115 flow [2021-03-26 00:49:02,963 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 28 transitions, 115 flow [2021-03-26 00:49:02,978 INFO L129 PetriNetUnfolder]: 16/66 cut-off events. [2021-03-26 00:49:02,978 INFO L130 PetriNetUnfolder]: For 83/88 co-relation queries the response was YES. [2021-03-26 00:49:02,978 INFO L84 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 66 events. 16/66 cut-off events. For 83/88 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 255 event pairs, 8 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 159. Up to 28 conditions per place. [2021-03-26 00:49:02,979 INFO L142 LiptonReduction]: Number of co-enabled transitions 262 [2021-03-26 00:49:03,053 INFO L154 LiptonReduction]: Checked pairs total: 94 [2021-03-26 00:49:03,053 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:49:03,053 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 91 [2021-03-26 00:49:03,054 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 115 flow [2021-03-26 00:49:03,055 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:49:03,055 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:49:03,055 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:49:03,055 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 00:49:03,055 INFO L428 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:49:03,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:49:03,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1118630495, now seen corresponding path program 1 times [2021-03-26 00:49:03,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:49:03,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726949341] [2021-03-26 00:49:03,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:49:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:49:03,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:03,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:49:03,129 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-03-26 00:49:03,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 00:49:03,149 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-26 00:49:03,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-26 00:49:03,167 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 00:49:03,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726949341] [2021-03-26 00:49:03,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:49:03,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:49:03,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755663929] [2021-03-26 00:49:03,168 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:49:03,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:49:03,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:49:03,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:49:03,169 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 170 [2021-03-26 00:49:03,170 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 115 flow. Second operand has 5 states, 5 states have (on average 135.8) internal successors, (679), 5 states have internal predecessors, (679), 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 00:49:03,170 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:49:03,170 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 170 [2021-03-26 00:49:03,170 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:49:03,267 INFO L129 PetriNetUnfolder]: 85/196 cut-off events. [2021-03-26 00:49:03,267 INFO L130 PetriNetUnfolder]: For 227/229 co-relation queries the response was YES. [2021-03-26 00:49:03,268 INFO L84 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 196 events. 85/196 cut-off events. For 227/229 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 876 event pairs, 9 based on Foata normal form. 4/192 useless extension candidates. Maximal degree in co-relation 536. Up to 103 conditions per place. [2021-03-26 00:49:03,270 INFO L132 encePairwiseOnDemand]: 164/170 looper letters, 10 selfloop transitions, 7 changer transitions 0/34 dead transitions. [2021-03-26 00:49:03,270 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 34 transitions, 171 flow [2021-03-26 00:49:03,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:49:03,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:49:03,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 555 transitions. [2021-03-26 00:49:03,273 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8161764705882353 [2021-03-26 00:49:03,273 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 555 transitions. [2021-03-26 00:49:03,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 555 transitions. [2021-03-26 00:49:03,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:49:03,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 555 transitions. [2021-03-26 00:49:03,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 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 00:49:03,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 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 00:49:03,277 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 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 00:49:03,277 INFO L185 Difference]: Start difference. First operand has 37 places, 28 transitions, 115 flow. Second operand 4 states and 555 transitions. [2021-03-26 00:49:03,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 34 transitions, 171 flow [2021-03-26 00:49:03,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 34 transitions, 168 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 00:49:03,282 INFO L241 Difference]: Finished difference. Result has 40 places, 31 transitions, 144 flow [2021-03-26 00:49:03,282 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=144, PETRI_PLACES=40, PETRI_TRANSITIONS=31} [2021-03-26 00:49:03,282 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -6 predicate places. [2021-03-26 00:49:03,282 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:49:03,282 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 31 transitions, 144 flow [2021-03-26 00:49:03,283 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 31 transitions, 144 flow [2021-03-26 00:49:03,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 31 transitions, 144 flow [2021-03-26 00:49:03,301 INFO L129 PetriNetUnfolder]: 44/122 cut-off events. [2021-03-26 00:49:03,301 INFO L130 PetriNetUnfolder]: For 381/409 co-relation queries the response was YES. [2021-03-26 00:49:03,302 INFO L84 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 122 events. 44/122 cut-off events. For 381/409 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 559 event pairs, 19 based on Foata normal form. 2/104 useless extension candidates. Maximal degree in co-relation 365. Up to 51 conditions per place. [2021-03-26 00:49:03,303 INFO L142 LiptonReduction]: Number of co-enabled transitions 278 [2021-03-26 00:49:03,306 INFO L154 LiptonReduction]: Checked pairs total: 35 [2021-03-26 00:49:03,306 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:49:03,306 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-03-26 00:49:03,309 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 31 transitions, 144 flow [2021-03-26 00:49:03,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 135.8) internal successors, (679), 5 states have internal predecessors, (679), 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 00:49:03,309 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:49:03,309 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:49:03,309 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 00:49:03,309 INFO L428 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:49:03,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:49:03,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1590613475, now seen corresponding path program 2 times [2021-03-26 00:49:03,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:49:03,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941401943] [2021-03-26 00:49:03,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:49:03,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:49:03,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:03,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:49:03,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:03,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:49:03,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:03,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 00:49:03,429 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 00:49:03,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941401943] [2021-03-26 00:49:03,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:49:03,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:49:03,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076872338] [2021-03-26 00:49:03,432 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:49:03,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:49:03,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:49:03,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:49:03,436 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 170 [2021-03-26 00:49:03,437 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 144 flow. Second operand has 5 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 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 00:49:03,437 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:49:03,437 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 170 [2021-03-26 00:49:03,437 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:49:03,534 INFO L129 PetriNetUnfolder]: 67/169 cut-off events. [2021-03-26 00:49:03,534 INFO L130 PetriNetUnfolder]: For 334/344 co-relation queries the response was YES. [2021-03-26 00:49:03,535 INFO L84 FinitePrefix]: Finished finitePrefix Result has 544 conditions, 169 events. 67/169 cut-off events. For 334/344 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 744 event pairs, 2 based on Foata normal form. 14/176 useless extension candidates. Maximal degree in co-relation 526. Up to 73 conditions per place. [2021-03-26 00:49:03,536 INFO L132 encePairwiseOnDemand]: 164/170 looper letters, 11 selfloop transitions, 11 changer transitions 0/39 dead transitions. [2021-03-26 00:49:03,536 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 39 transitions, 230 flow [2021-03-26 00:49:03,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:49:03,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:49:03,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 813 transitions. [2021-03-26 00:49:03,539 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7970588235294118 [2021-03-26 00:49:03,539 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 813 transitions. [2021-03-26 00:49:03,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 813 transitions. [2021-03-26 00:49:03,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:49:03,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 813 transitions. [2021-03-26 00:49:03,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 135.5) internal successors, (813), 6 states have internal predecessors, (813), 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 00:49:03,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 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 00:49:03,544 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 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 00:49:03,544 INFO L185 Difference]: Start difference. First operand has 40 places, 31 transitions, 144 flow. Second operand 6 states and 813 transitions. [2021-03-26 00:49:03,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 39 transitions, 230 flow [2021-03-26 00:49:03,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 39 transitions, 223 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 00:49:03,548 INFO L241 Difference]: Finished difference. Result has 46 places, 35 transitions, 196 flow [2021-03-26 00:49:03,548 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=196, PETRI_PLACES=46, PETRI_TRANSITIONS=35} [2021-03-26 00:49:03,548 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 0 predicate places. [2021-03-26 00:49:03,548 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:49:03,548 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 35 transitions, 196 flow [2021-03-26 00:49:03,548 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 35 transitions, 196 flow [2021-03-26 00:49:03,549 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 35 transitions, 196 flow [2021-03-26 00:49:03,576 INFO L129 PetriNetUnfolder]: 35/106 cut-off events. [2021-03-26 00:49:03,576 INFO L130 PetriNetUnfolder]: For 555/594 co-relation queries the response was YES. [2021-03-26 00:49:03,576 INFO L84 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 106 events. 35/106 cut-off events. For 555/594 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 464 event pairs, 11 based on Foata normal form. 2/92 useless extension candidates. Maximal degree in co-relation 371. Up to 40 conditions per place. [2021-03-26 00:49:03,578 INFO L142 LiptonReduction]: Number of co-enabled transitions 304 [2021-03-26 00:49:03,737 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-26 00:49:04,091 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 83 [2021-03-26 00:49:04,202 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-03-26 00:49:04,207 INFO L154 LiptonReduction]: Checked pairs total: 135 [2021-03-26 00:49:04,208 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:49:04,208 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 660 [2021-03-26 00:49:04,209 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 35 transitions, 201 flow [2021-03-26 00:49:04,209 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 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 00:49:04,209 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:49:04,209 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:49:04,209 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 00:49:04,209 INFO L428 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:49:04,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:49:04,210 INFO L82 PathProgramCache]: Analyzing trace with hash -959121374, now seen corresponding path program 1 times [2021-03-26 00:49:04,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:49:04,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596245025] [2021-03-26 00:49:04,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:49:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:49:04,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:04,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 00:49:04,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:04,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:49:04,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:04,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 00:49:04,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:04,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 00:49:04,285 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 00:49:04,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596245025] [2021-03-26 00:49:04,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:49:04,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:49:04,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851543777] [2021-03-26 00:49:04,287 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:49:04,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:49:04,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:49:04,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:49:04,290 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 171 [2021-03-26 00:49:04,291 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 35 transitions, 201 flow. Second operand 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 00:49:04,291 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:49:04,291 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 171 [2021-03-26 00:49:04,291 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:49:04,350 INFO L129 PetriNetUnfolder]: 63/147 cut-off events. [2021-03-26 00:49:04,350 INFO L130 PetriNetUnfolder]: For 436/462 co-relation queries the response was YES. [2021-03-26 00:49:04,351 INFO L84 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 147 events. 63/147 cut-off events. For 436/462 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 604 event pairs, 16 based on Foata normal form. 10/139 useless extension candidates. Maximal degree in co-relation 578. Up to 86 conditions per place. [2021-03-26 00:49:04,352 INFO L132 encePairwiseOnDemand]: 166/171 looper letters, 12 selfloop transitions, 7 changer transitions 0/36 dead transitions. [2021-03-26 00:49:04,352 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 36 transitions, 243 flow [2021-03-26 00:49:04,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:49:04,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:49:04,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 542 transitions. [2021-03-26 00:49:04,354 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7923976608187134 [2021-03-26 00:49:04,354 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 542 transitions. [2021-03-26 00:49:04,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 542 transitions. [2021-03-26 00:49:04,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:49:04,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 542 transitions. [2021-03-26 00:49:04,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 135.5) internal successors, (542), 4 states have internal predecessors, (542), 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 00:49:04,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 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 00:49:04,358 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 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 00:49:04,358 INFO L185 Difference]: Start difference. First operand has 46 places, 35 transitions, 201 flow. Second operand 4 states and 542 transitions. [2021-03-26 00:49:04,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 36 transitions, 243 flow [2021-03-26 00:49:04,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 36 transitions, 227 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-03-26 00:49:04,362 INFO L241 Difference]: Finished difference. Result has 49 places, 35 transitions, 207 flow [2021-03-26 00:49:04,362 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=207, PETRI_PLACES=49, PETRI_TRANSITIONS=35} [2021-03-26 00:49:04,363 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 3 predicate places. [2021-03-26 00:49:04,363 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:49:04,363 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 35 transitions, 207 flow [2021-03-26 00:49:04,363 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 35 transitions, 207 flow [2021-03-26 00:49:04,364 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 35 transitions, 207 flow [2021-03-26 00:49:04,386 INFO L129 PetriNetUnfolder]: 32/107 cut-off events. [2021-03-26 00:49:04,386 INFO L130 PetriNetUnfolder]: For 465/479 co-relation queries the response was YES. [2021-03-26 00:49:04,387 INFO L84 FinitePrefix]: Finished finitePrefix Result has 373 conditions, 107 events. 32/107 cut-off events. For 465/479 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 472 event pairs, 10 based on Foata normal form. 2/100 useless extension candidates. Maximal degree in co-relation 352. Up to 36 conditions per place. [2021-03-26 00:49:04,388 INFO L142 LiptonReduction]: Number of co-enabled transitions 304 [2021-03-26 00:49:04,390 INFO L154 LiptonReduction]: Checked pairs total: 88 [2021-03-26 00:49:04,391 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:49:04,391 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 28 [2021-03-26 00:49:04,393 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 35 transitions, 207 flow [2021-03-26 00:49:04,393 INFO L481 AbstractCegarLoop]: Interpolant automaton has 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 00:49:04,393 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:49:04,394 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:49:04,394 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 00:49:04,394 INFO L428 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:49:04,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:49:04,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1771098418, now seen corresponding path program 1 times [2021-03-26 00:49:04,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:49:04,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519107236] [2021-03-26 00:49:04,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:49:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:49:04,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:04,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:49:04,503 INFO L142 QuantifierPusher]: treesize reduction 8, result has 63.6 percent of original size [2021-03-26 00:49:04,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 00:49:04,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:04,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 00:49:04,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:04,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 00:49:04,533 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 00:49:04,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519107236] [2021-03-26 00:49:04,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:49:04,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:49:04,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125037277] [2021-03-26 00:49:04,534 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:49:04,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:49:04,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:49:04,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:49:04,536 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 171 [2021-03-26 00:49:04,536 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 35 transitions, 207 flow. Second operand has 5 states, 5 states have (on average 128.0) internal successors, (640), 5 states have internal predecessors, (640), 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 00:49:04,536 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:49:04,536 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 171 [2021-03-26 00:49:04,536 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:49:04,646 INFO L129 PetriNetUnfolder]: 70/178 cut-off events. [2021-03-26 00:49:04,647 INFO L130 PetriNetUnfolder]: For 632/654 co-relation queries the response was YES. [2021-03-26 00:49:04,648 INFO L84 FinitePrefix]: Finished finitePrefix Result has 666 conditions, 178 events. 70/178 cut-off events. For 632/654 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 840 event pairs, 5 based on Foata normal form. 11/178 useless extension candidates. Maximal degree in co-relation 643. Up to 73 conditions per place. [2021-03-26 00:49:04,649 INFO L132 encePairwiseOnDemand]: 166/171 looper letters, 12 selfloop transitions, 9 changer transitions 0/38 dead transitions. [2021-03-26 00:49:04,649 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 38 transitions, 261 flow [2021-03-26 00:49:04,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:49:04,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:49:04,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 524 transitions. [2021-03-26 00:49:04,651 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7660818713450293 [2021-03-26 00:49:04,651 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 524 transitions. [2021-03-26 00:49:04,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 524 transitions. [2021-03-26 00:49:04,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:49:04,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 524 transitions. [2021-03-26 00:49:04,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:49:04,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 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 00:49:04,655 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 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 00:49:04,655 INFO L185 Difference]: Start difference. First operand has 49 places, 35 transitions, 207 flow. Second operand 4 states and 524 transitions. [2021-03-26 00:49:04,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 38 transitions, 261 flow [2021-03-26 00:49:04,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 38 transitions, 241 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-03-26 00:49:04,657 INFO L241 Difference]: Finished difference. Result has 49 places, 36 transitions, 221 flow [2021-03-26 00:49:04,657 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=221, PETRI_PLACES=49, PETRI_TRANSITIONS=36} [2021-03-26 00:49:04,657 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 3 predicate places. [2021-03-26 00:49:04,658 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:49:04,658 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 36 transitions, 221 flow [2021-03-26 00:49:04,658 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 36 transitions, 221 flow [2021-03-26 00:49:04,658 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 36 transitions, 221 flow [2021-03-26 00:49:04,673 INFO L129 PetriNetUnfolder]: 34/112 cut-off events. [2021-03-26 00:49:04,674 INFO L130 PetriNetUnfolder]: For 455/490 co-relation queries the response was YES. [2021-03-26 00:49:04,674 INFO L84 FinitePrefix]: Finished finitePrefix Result has 393 conditions, 112 events. 34/112 cut-off events. For 455/490 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 498 event pairs, 11 based on Foata normal form. 2/105 useless extension candidates. Maximal degree in co-relation 372. Up to 37 conditions per place. [2021-03-26 00:49:04,675 INFO L142 LiptonReduction]: Number of co-enabled transitions 316 [2021-03-26 00:49:04,678 INFO L154 LiptonReduction]: Checked pairs total: 78 [2021-03-26 00:49:04,678 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:49:04,678 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-03-26 00:49:04,680 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 36 transitions, 221 flow [2021-03-26 00:49:04,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 128.0) internal successors, (640), 5 states have internal predecessors, (640), 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 00:49:04,680 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:49:04,680 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:49:04,680 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 00:49:04,680 INFO L428 AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:49:04,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:49:04,681 INFO L82 PathProgramCache]: Analyzing trace with hash -4984619, now seen corresponding path program 1 times [2021-03-26 00:49:04,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:49:04,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857293535] [2021-03-26 00:49:04,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:49:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:49:04,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:04,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:49:04,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:04,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:49:04,730 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 00:49:04,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857293535] [2021-03-26 00:49:04,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:49:04,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:49:04,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035142486] [2021-03-26 00:49:04,731 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:49:04,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:49:04,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:49:04,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:49:04,732 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 171 [2021-03-26 00:49:04,732 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 36 transitions, 221 flow. Second operand has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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 00:49:04,732 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:49:04,732 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 171 [2021-03-26 00:49:04,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:49:04,767 INFO L129 PetriNetUnfolder]: 47/174 cut-off events. [2021-03-26 00:49:04,767 INFO L130 PetriNetUnfolder]: For 880/926 co-relation queries the response was YES. [2021-03-26 00:49:04,768 INFO L84 FinitePrefix]: Finished finitePrefix Result has 613 conditions, 174 events. 47/174 cut-off events. For 880/926 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 958 event pairs, 9 based on Foata normal form. 15/180 useless extension candidates. Maximal degree in co-relation 590. Up to 52 conditions per place. [2021-03-26 00:49:04,769 INFO L132 encePairwiseOnDemand]: 168/171 looper letters, 3 selfloop transitions, 3 changer transitions 0/36 dead transitions. [2021-03-26 00:49:04,769 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 36 transitions, 233 flow [2021-03-26 00:49:04,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:49:04,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:49:04,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 462 transitions. [2021-03-26 00:49:04,771 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9005847953216374 [2021-03-26 00:49:04,771 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 462 transitions. [2021-03-26 00:49:04,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 462 transitions. [2021-03-26 00:49:04,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:49:04,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 462 transitions. [2021-03-26 00:49:04,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 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 00:49:04,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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 00:49:04,774 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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 00:49:04,774 INFO L185 Difference]: Start difference. First operand has 49 places, 36 transitions, 221 flow. Second operand 3 states and 462 transitions. [2021-03-26 00:49:04,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 36 transitions, 233 flow [2021-03-26 00:49:04,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 36 transitions, 219 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-26 00:49:04,779 INFO L241 Difference]: Finished difference. Result has 50 places, 36 transitions, 218 flow [2021-03-26 00:49:04,779 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=50, PETRI_TRANSITIONS=36} [2021-03-26 00:49:04,779 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 4 predicate places. [2021-03-26 00:49:04,780 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:49:04,780 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 36 transitions, 218 flow [2021-03-26 00:49:04,780 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 36 transitions, 218 flow [2021-03-26 00:49:04,780 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 36 transitions, 218 flow [2021-03-26 00:49:04,794 INFO L129 PetriNetUnfolder]: 32/119 cut-off events. [2021-03-26 00:49:04,794 INFO L130 PetriNetUnfolder]: For 424/448 co-relation queries the response was YES. [2021-03-26 00:49:04,795 INFO L84 FinitePrefix]: Finished finitePrefix Result has 397 conditions, 119 events. 32/119 cut-off events. For 424/448 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 560 event pairs, 7 based on Foata normal form. 4/115 useless extension candidates. Maximal degree in co-relation 376. Up to 34 conditions per place. [2021-03-26 00:49:04,796 INFO L142 LiptonReduction]: Number of co-enabled transitions 316 [2021-03-26 00:49:04,800 INFO L154 LiptonReduction]: Checked pairs total: 78 [2021-03-26 00:49:04,800 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:49:04,800 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-03-26 00:49:04,801 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 36 transitions, 218 flow [2021-03-26 00:49:04,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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 00:49:04,801 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:49:04,801 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:49:04,801 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 00:49:04,802 INFO L428 AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:49:04,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:49:04,802 INFO L82 PathProgramCache]: Analyzing trace with hash 156630943, now seen corresponding path program 1 times [2021-03-26 00:49:04,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:49:04,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145238824] [2021-03-26 00:49:04,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:49:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:49:04,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:04,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:49:04,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:04,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:49:04,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:04,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:49:04,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:04,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 00:49:04,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:04,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:49:04,926 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 00:49:04,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145238824] [2021-03-26 00:49:04,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:49:04,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:49:04,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382216725] [2021-03-26 00:49:04,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:49:04,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:49:04,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:49:04,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:49:04,929 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 171 [2021-03-26 00:49:04,929 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 36 transitions, 218 flow. Second operand has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 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 00:49:04,929 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:49:04,929 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 171 [2021-03-26 00:49:04,930 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:49:05,032 INFO L129 PetriNetUnfolder]: 80/215 cut-off events. [2021-03-26 00:49:05,032 INFO L130 PetriNetUnfolder]: For 723/810 co-relation queries the response was YES. [2021-03-26 00:49:05,033 INFO L84 FinitePrefix]: Finished finitePrefix Result has 831 conditions, 215 events. 80/215 cut-off events. For 723/810 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1109 event pairs, 13 based on Foata normal form. 22/216 useless extension candidates. Maximal degree in co-relation 808. Up to 120 conditions per place. [2021-03-26 00:49:05,034 INFO L132 encePairwiseOnDemand]: 165/171 looper letters, 14 selfloop transitions, 10 changer transitions 0/41 dead transitions. [2021-03-26 00:49:05,034 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 41 transitions, 296 flow [2021-03-26 00:49:05,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:49:05,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:49:05,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 637 transitions. [2021-03-26 00:49:05,037 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7450292397660818 [2021-03-26 00:49:05,037 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 637 transitions. [2021-03-26 00:49:05,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 637 transitions. [2021-03-26 00:49:05,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:49:05,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 637 transitions. [2021-03-26 00:49:05,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 127.4) internal successors, (637), 5 states have internal predecessors, (637), 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 00:49:05,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 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 00:49:05,041 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 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 00:49:05,041 INFO L185 Difference]: Start difference. First operand has 50 places, 36 transitions, 218 flow. Second operand 5 states and 637 transitions. [2021-03-26 00:49:05,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 41 transitions, 296 flow [2021-03-26 00:49:05,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 41 transitions, 291 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 00:49:05,044 INFO L241 Difference]: Finished difference. Result has 54 places, 39 transitions, 262 flow [2021-03-26 00:49:05,045 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=262, PETRI_PLACES=54, PETRI_TRANSITIONS=39} [2021-03-26 00:49:05,045 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 8 predicate places. [2021-03-26 00:49:05,045 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:49:05,045 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 39 transitions, 262 flow [2021-03-26 00:49:05,045 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 39 transitions, 262 flow [2021-03-26 00:49:05,046 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 39 transitions, 262 flow [2021-03-26 00:49:05,063 INFO L129 PetriNetUnfolder]: 38/140 cut-off events. [2021-03-26 00:49:05,063 INFO L130 PetriNetUnfolder]: For 492/539 co-relation queries the response was YES. [2021-03-26 00:49:05,064 INFO L84 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 140 events. 38/140 cut-off events. For 492/539 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 712 event pairs, 9 based on Foata normal form. 8/138 useless extension candidates. Maximal degree in co-relation 477. Up to 43 conditions per place. [2021-03-26 00:49:05,065 INFO L142 LiptonReduction]: Number of co-enabled transitions 344 [2021-03-26 00:49:05,070 INFO L154 LiptonReduction]: Checked pairs total: 151 [2021-03-26 00:49:05,070 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:49:05,070 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-03-26 00:49:05,072 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 39 transitions, 262 flow [2021-03-26 00:49:05,074 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 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 00:49:05,074 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:49:05,074 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:49:05,074 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 00:49:05,074 INFO L428 AbstractCegarLoop]: === Iteration 11 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:49:05,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:49:05,075 INFO L82 PathProgramCache]: Analyzing trace with hash -398911937, now seen corresponding path program 2 times [2021-03-26 00:49:05,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:49:05,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143971683] [2021-03-26 00:49:05,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:49:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:49:05,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:05,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:49:05,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:05,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:49:05,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:05,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 00:49:05,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:05,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 00:49:05,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:05,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 00:49:05,201 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 00:49:05,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143971683] [2021-03-26 00:49:05,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:49:05,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:49:05,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941102551] [2021-03-26 00:49:05,202 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:49:05,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:49:05,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:49:05,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:49:05,203 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 171 [2021-03-26 00:49:05,204 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 39 transitions, 262 flow. Second operand has 6 states, 6 states have (on average 126.0) internal successors, (756), 6 states have internal predecessors, (756), 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 00:49:05,204 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:49:05,204 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 171 [2021-03-26 00:49:05,204 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:49:05,350 INFO L129 PetriNetUnfolder]: 84/244 cut-off events. [2021-03-26 00:49:05,350 INFO L130 PetriNetUnfolder]: For 982/1044 co-relation queries the response was YES. [2021-03-26 00:49:05,351 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1004 conditions, 244 events. 84/244 cut-off events. For 982/1044 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1386 event pairs, 2 based on Foata normal form. 35/266 useless extension candidates. Maximal degree in co-relation 979. Up to 107 conditions per place. [2021-03-26 00:49:05,353 INFO L132 encePairwiseOnDemand]: 164/171 looper letters, 13 selfloop transitions, 16 changer transitions 0/46 dead transitions. [2021-03-26 00:49:05,353 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 46 transitions, 371 flow [2021-03-26 00:49:05,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:49:05,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:49:05,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 898 transitions. [2021-03-26 00:49:05,356 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7502088554720133 [2021-03-26 00:49:05,356 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 898 transitions. [2021-03-26 00:49:05,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 898 transitions. [2021-03-26 00:49:05,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:49:05,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 898 transitions. [2021-03-26 00:49:05,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 128.28571428571428) internal successors, (898), 7 states have internal predecessors, (898), 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 00:49:05,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 171.0) internal successors, (1368), 8 states have internal predecessors, (1368), 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 00:49:05,363 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 171.0) internal successors, (1368), 8 states have internal predecessors, (1368), 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 00:49:05,363 INFO L185 Difference]: Start difference. First operand has 54 places, 39 transitions, 262 flow. Second operand 7 states and 898 transitions. [2021-03-26 00:49:05,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 46 transitions, 371 flow [2021-03-26 00:49:05,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 46 transitions, 352 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-26 00:49:05,366 INFO L241 Difference]: Finished difference. Result has 58 places, 42 transitions, 313 flow [2021-03-26 00:49:05,366 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=313, PETRI_PLACES=58, PETRI_TRANSITIONS=42} [2021-03-26 00:49:05,367 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 12 predicate places. [2021-03-26 00:49:05,367 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:49:05,367 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 42 transitions, 313 flow [2021-03-26 00:49:05,367 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 42 transitions, 313 flow [2021-03-26 00:49:05,368 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 42 transitions, 313 flow [2021-03-26 00:49:05,385 INFO L129 PetriNetUnfolder]: 39/142 cut-off events. [2021-03-26 00:49:05,385 INFO L130 PetriNetUnfolder]: For 736/796 co-relation queries the response was YES. [2021-03-26 00:49:05,385 INFO L84 FinitePrefix]: Finished finitePrefix Result has 545 conditions, 142 events. 39/142 cut-off events. For 736/796 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 723 event pairs, 10 based on Foata normal form. 11/143 useless extension candidates. Maximal degree in co-relation 521. Up to 45 conditions per place. [2021-03-26 00:49:05,387 INFO L142 LiptonReduction]: Number of co-enabled transitions 372 [2021-03-26 00:49:05,392 INFO L154 LiptonReduction]: Checked pairs total: 165 [2021-03-26 00:49:05,392 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:49:05,393 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-03-26 00:49:05,394 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 42 transitions, 313 flow [2021-03-26 00:49:05,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 126.0) internal successors, (756), 6 states have internal predecessors, (756), 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 00:49:05,395 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:49:05,395 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:49:05,395 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 00:49:05,395 INFO L428 AbstractCegarLoop]: === Iteration 12 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:49:05,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:49:05,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1261107701, now seen corresponding path program 3 times [2021-03-26 00:49:05,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:49:05,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363218257] [2021-03-26 00:49:05,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:49:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:49:05,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:05,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:49:05,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:05,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:49:05,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:05,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:49:05,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:05,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 00:49:05,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:05,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 00:49:05,499 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 00:49:05,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363218257] [2021-03-26 00:49:05,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:49:05,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:49:05,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673632094] [2021-03-26 00:49:05,502 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:49:05,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:49:05,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:49:05,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:49:05,503 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 171 [2021-03-26 00:49:05,504 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 42 transitions, 313 flow. Second operand has 6 states, 6 states have (on average 126.0) internal successors, (756), 6 states have internal predecessors, (756), 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 00:49:05,504 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:49:05,504 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 171 [2021-03-26 00:49:05,504 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:49:05,647 INFO L129 PetriNetUnfolder]: 78/260 cut-off events. [2021-03-26 00:49:05,647 INFO L130 PetriNetUnfolder]: For 1246/1302 co-relation queries the response was YES. [2021-03-26 00:49:05,648 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1093 conditions, 260 events. 78/260 cut-off events. For 1246/1302 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1639 event pairs, 4 based on Foata normal form. 38/285 useless extension candidates. Maximal degree in co-relation 1067. Up to 88 conditions per place. [2021-03-26 00:49:05,650 INFO L132 encePairwiseOnDemand]: 165/171 looper letters, 10 selfloop transitions, 20 changer transitions 0/47 dead transitions. [2021-03-26 00:49:05,650 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 47 transitions, 403 flow [2021-03-26 00:49:05,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:49:05,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:49:05,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 895 transitions. [2021-03-26 00:49:05,653 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.747702589807853 [2021-03-26 00:49:05,653 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 895 transitions. [2021-03-26 00:49:05,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 895 transitions. [2021-03-26 00:49:05,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:49:05,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 895 transitions. [2021-03-26 00:49:05,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 127.85714285714286) internal successors, (895), 7 states have internal predecessors, (895), 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 00:49:05,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 171.0) internal successors, (1368), 8 states have internal predecessors, (1368), 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 00:49:05,657 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 171.0) internal successors, (1368), 8 states have internal predecessors, (1368), 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 00:49:05,657 INFO L185 Difference]: Start difference. First operand has 58 places, 42 transitions, 313 flow. Second operand 7 states and 895 transitions. [2021-03-26 00:49:05,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 47 transitions, 403 flow [2021-03-26 00:49:05,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 47 transitions, 381 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-03-26 00:49:05,661 INFO L241 Difference]: Finished difference. Result has 62 places, 43 transitions, 364 flow [2021-03-26 00:49:05,661 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=364, PETRI_PLACES=62, PETRI_TRANSITIONS=43} [2021-03-26 00:49:05,661 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 16 predicate places. [2021-03-26 00:49:05,661 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:49:05,662 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 43 transitions, 364 flow [2021-03-26 00:49:05,662 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 43 transitions, 364 flow [2021-03-26 00:49:05,662 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 43 transitions, 364 flow [2021-03-26 00:49:05,679 INFO L129 PetriNetUnfolder]: 37/142 cut-off events. [2021-03-26 00:49:05,679 INFO L130 PetriNetUnfolder]: For 902/956 co-relation queries the response was YES. [2021-03-26 00:49:05,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 601 conditions, 142 events. 37/142 cut-off events. For 902/956 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 725 event pairs, 8 based on Foata normal form. 13/145 useless extension candidates. Maximal degree in co-relation 575. Up to 40 conditions per place. [2021-03-26 00:49:05,682 INFO L142 LiptonReduction]: Number of co-enabled transitions 380 [2021-03-26 00:49:05,689 INFO L154 LiptonReduction]: Checked pairs total: 212 [2021-03-26 00:49:05,690 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:49:05,690 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-03-26 00:49:05,692 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 43 transitions, 364 flow [2021-03-26 00:49:05,692 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 126.0) internal successors, (756), 6 states have internal predecessors, (756), 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 00:49:05,692 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:49:05,692 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:49:05,692 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-26 00:49:05,692 INFO L428 AbstractCegarLoop]: === Iteration 13 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:49:05,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:49:05,693 INFO L82 PathProgramCache]: Analyzing trace with hash -154531750, now seen corresponding path program 1 times [2021-03-26 00:49:05,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:49:05,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794245941] [2021-03-26 00:49:05,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:49:05,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:49:05,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:05,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:49:05,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:05,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:49:05,724 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 00:49:05,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794245941] [2021-03-26 00:49:05,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:49:05,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:49:05,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470544625] [2021-03-26 00:49:05,725 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:49:05,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:49:05,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:49:05,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:49:05,726 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 171 [2021-03-26 00:49:05,726 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 43 transitions, 364 flow. Second operand has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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 00:49:05,726 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:49:05,727 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 171 [2021-03-26 00:49:05,727 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:49:05,764 INFO L129 PetriNetUnfolder]: 54/219 cut-off events. [2021-03-26 00:49:05,764 INFO L130 PetriNetUnfolder]: For 1376/1441 co-relation queries the response was YES. [2021-03-26 00:49:05,765 INFO L84 FinitePrefix]: Finished finitePrefix Result has 948 conditions, 219 events. 54/219 cut-off events. For 1376/1441 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1378 event pairs, 16 based on Foata normal form. 13/211 useless extension candidates. Maximal degree in co-relation 920. Up to 70 conditions per place. [2021-03-26 00:49:05,766 INFO L132 encePairwiseOnDemand]: 168/171 looper letters, 3 selfloop transitions, 3 changer transitions 0/43 dead transitions. [2021-03-26 00:49:05,766 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 43 transitions, 376 flow [2021-03-26 00:49:05,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:49:05,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:49:05,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 453 transitions. [2021-03-26 00:49:05,768 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8830409356725146 [2021-03-26 00:49:05,768 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 453 transitions. [2021-03-26 00:49:05,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 453 transitions. [2021-03-26 00:49:05,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:49:05,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 453 transitions. [2021-03-26 00:49:05,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.0) internal successors, (453), 3 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 00:49:05,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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 00:49:05,771 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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 00:49:05,771 INFO L185 Difference]: Start difference. First operand has 62 places, 43 transitions, 364 flow. Second operand 3 states and 453 transitions. [2021-03-26 00:49:05,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 43 transitions, 376 flow [2021-03-26 00:49:05,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 43 transitions, 354 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-03-26 00:49:05,778 INFO L241 Difference]: Finished difference. Result has 60 places, 43 transitions, 353 flow [2021-03-26 00:49:05,778 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=353, PETRI_PLACES=60, PETRI_TRANSITIONS=43} [2021-03-26 00:49:05,778 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 14 predicate places. [2021-03-26 00:49:05,778 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:49:05,778 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 43 transitions, 353 flow [2021-03-26 00:49:05,778 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 43 transitions, 353 flow [2021-03-26 00:49:05,779 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 43 transitions, 353 flow [2021-03-26 00:49:05,804 INFO L129 PetriNetUnfolder]: 54/225 cut-off events. [2021-03-26 00:49:05,804 INFO L130 PetriNetUnfolder]: For 892/909 co-relation queries the response was YES. [2021-03-26 00:49:05,805 INFO L84 FinitePrefix]: Finished finitePrefix Result has 922 conditions, 225 events. 54/225 cut-off events. For 892/909 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1438 event pairs, 11 based on Foata normal form. 13/220 useless extension candidates. Maximal degree in co-relation 898. Up to 70 conditions per place. [2021-03-26 00:49:05,808 INFO L142 LiptonReduction]: Number of co-enabled transitions 380 [2021-03-26 00:49:05,814 INFO L154 LiptonReduction]: Checked pairs total: 248 [2021-03-26 00:49:05,815 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:49:05,815 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-03-26 00:49:05,815 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 43 transitions, 353 flow [2021-03-26 00:49:05,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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 00:49:05,816 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:49:05,816 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:49:05,816 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-26 00:49:05,816 INFO L428 AbstractCegarLoop]: === Iteration 14 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:49:05,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:49:05,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1724597719, now seen corresponding path program 1 times [2021-03-26 00:49:05,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:49:05,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865163246] [2021-03-26 00:49:05,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:49:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:49:05,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:05,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:49:05,867 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-03-26 00:49:05,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:49:05,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:05,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:49:05,873 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 00:49:05,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865163246] [2021-03-26 00:49:05,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:49:05,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:49:05,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543562411] [2021-03-26 00:49:05,874 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:49:05,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:49:05,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:49:05,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:49:05,875 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 171 [2021-03-26 00:49:05,877 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 43 transitions, 353 flow. Second operand has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 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 00:49:05,877 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:49:05,877 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 171 [2021-03-26 00:49:05,877 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:49:06,010 INFO L129 PetriNetUnfolder]: 374/803 cut-off events. [2021-03-26 00:49:06,010 INFO L130 PetriNetUnfolder]: For 2060/2299 co-relation queries the response was YES. [2021-03-26 00:49:06,013 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2493 conditions, 803 events. 374/803 cut-off events. For 2060/2299 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 5760 event pairs, 148 based on Foata normal form. 155/860 useless extension candidates. Maximal degree in co-relation 2467. Up to 503 conditions per place. [2021-03-26 00:49:06,015 INFO L132 encePairwiseOnDemand]: 165/171 looper letters, 9 selfloop transitions, 8 changer transitions 6/53 dead transitions. [2021-03-26 00:49:06,016 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 53 transitions, 409 flow [2021-03-26 00:49:06,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:49:06,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:49:06,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 723 transitions. [2021-03-26 00:49:06,018 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8456140350877193 [2021-03-26 00:49:06,018 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 723 transitions. [2021-03-26 00:49:06,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 723 transitions. [2021-03-26 00:49:06,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:49:06,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 723 transitions. [2021-03-26 00:49:06,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 144.6) internal successors, (723), 5 states have internal predecessors, (723), 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 00:49:06,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 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 00:49:06,021 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 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 00:49:06,021 INFO L185 Difference]: Start difference. First operand has 60 places, 43 transitions, 353 flow. Second operand 5 states and 723 transitions. [2021-03-26 00:49:06,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 53 transitions, 409 flow [2021-03-26 00:49:06,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 53 transitions, 404 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 00:49:06,026 INFO L241 Difference]: Finished difference. Result has 66 places, 44 transitions, 363 flow [2021-03-26 00:49:06,026 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=363, PETRI_PLACES=66, PETRI_TRANSITIONS=44} [2021-03-26 00:49:06,026 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 20 predicate places. [2021-03-26 00:49:06,026 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:49:06,027 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 44 transitions, 363 flow [2021-03-26 00:49:06,027 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 44 transitions, 363 flow [2021-03-26 00:49:06,028 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 44 transitions, 363 flow [2021-03-26 00:49:06,066 INFO L129 PetriNetUnfolder]: 174/401 cut-off events. [2021-03-26 00:49:06,067 INFO L130 PetriNetUnfolder]: For 1370/1490 co-relation queries the response was YES. [2021-03-26 00:49:06,068 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1533 conditions, 401 events. 174/401 cut-off events. For 1370/1490 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 2418 event pairs, 71 based on Foata normal form. 19/378 useless extension candidates. Maximal degree in co-relation 1505. Up to 263 conditions per place. [2021-03-26 00:49:06,072 INFO L142 LiptonReduction]: Number of co-enabled transitions 356 [2021-03-26 00:49:06,579 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 66 [2021-03-26 00:49:06,816 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 85 [2021-03-26 00:49:06,975 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 66 [2021-03-26 00:49:07,238 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 85 [2021-03-26 00:49:07,305 INFO L154 LiptonReduction]: Checked pairs total: 69 [2021-03-26 00:49:07,305 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-26 00:49:07,306 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1280 [2021-03-26 00:49:07,306 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 43 transitions, 384 flow [2021-03-26 00:49:07,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 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 00:49:07,307 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:49:07,307 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:49:07,307 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-26 00:49:07,307 INFO L428 AbstractCegarLoop]: === Iteration 15 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:49:07,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:49:07,307 INFO L82 PathProgramCache]: Analyzing trace with hash 73995101, now seen corresponding path program 1 times [2021-03-26 00:49:07,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:49:07,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003665827] [2021-03-26 00:49:07,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:49:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:49:07,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:07,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:49:07,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:07,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:49:07,401 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-03-26 00:49:07,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:49:07,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:07,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:49:07,411 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 00:49:07,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003665827] [2021-03-26 00:49:07,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:49:07,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:49:07,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127729387] [2021-03-26 00:49:07,411 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:49:07,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:49:07,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:49:07,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:49:07,413 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 177 [2021-03-26 00:49:07,414 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 43 transitions, 384 flow. Second operand has 5 states, 5 states have (on average 147.8) internal successors, (739), 5 states have internal predecessors, (739), 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 00:49:07,414 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:49:07,414 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 177 [2021-03-26 00:49:07,414 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:49:07,510 INFO L129 PetriNetUnfolder]: 109/319 cut-off events. [2021-03-26 00:49:07,511 INFO L130 PetriNetUnfolder]: For 1390/1930 co-relation queries the response was YES. [2021-03-26 00:49:07,512 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1388 conditions, 319 events. 109/319 cut-off events. For 1390/1930 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 2098 event pairs, 13 based on Foata normal form. 180/479 useless extension candidates. Maximal degree in co-relation 1358. Up to 216 conditions per place. [2021-03-26 00:49:07,514 INFO L132 encePairwiseOnDemand]: 171/177 looper letters, 5 selfloop transitions, 13 changer transitions 7/53 dead transitions. [2021-03-26 00:49:07,514 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 53 transitions, 490 flow [2021-03-26 00:49:07,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:49:07,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:49:07,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1054 transitions. [2021-03-26 00:49:07,517 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8506860371267151 [2021-03-26 00:49:07,517 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1054 transitions. [2021-03-26 00:49:07,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1054 transitions. [2021-03-26 00:49:07,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:49:07,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1054 transitions. [2021-03-26 00:49:07,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 150.57142857142858) internal successors, (1054), 7 states have internal predecessors, (1054), 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 00:49:07,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 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 00:49:07,523 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 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 00:49:07,523 INFO L185 Difference]: Start difference. First operand has 65 places, 43 transitions, 384 flow. Second operand 7 states and 1054 transitions. [2021-03-26 00:49:07,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 53 transitions, 490 flow [2021-03-26 00:49:07,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 53 transitions, 427 flow, removed 14 selfloop flow, removed 8 redundant places. [2021-03-26 00:49:07,529 INFO L241 Difference]: Finished difference. Result has 66 places, 46 transitions, 382 flow [2021-03-26 00:49:07,529 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=382, PETRI_PLACES=66, PETRI_TRANSITIONS=46} [2021-03-26 00:49:07,529 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 20 predicate places. [2021-03-26 00:49:07,529 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:49:07,529 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 46 transitions, 382 flow [2021-03-26 00:49:07,529 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 46 transitions, 382 flow [2021-03-26 00:49:07,530 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 46 transitions, 382 flow [2021-03-26 00:49:07,564 INFO L129 PetriNetUnfolder]: 74/271 cut-off events. [2021-03-26 00:49:07,564 INFO L130 PetriNetUnfolder]: For 1244/1398 co-relation queries the response was YES. [2021-03-26 00:49:07,566 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1256 conditions, 271 events. 74/271 cut-off events. For 1244/1398 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 1805 event pairs, 12 based on Foata normal form. 12/272 useless extension candidates. Maximal degree in co-relation 1230. Up to 175 conditions per place. [2021-03-26 00:49:07,568 INFO L142 LiptonReduction]: Number of co-enabled transitions 316 [2021-03-26 00:49:07,580 INFO L154 LiptonReduction]: Checked pairs total: 38 [2021-03-26 00:49:07,580 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 00:49:07,580 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 51 [2021-03-26 00:49:07,583 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 44 transitions, 366 flow [2021-03-26 00:49:07,583 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 147.8) internal successors, (739), 5 states have internal predecessors, (739), 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 00:49:07,583 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:49:07,583 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:49:07,584 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-26 00:49:07,584 INFO L428 AbstractCegarLoop]: === Iteration 16 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:49:07,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:49:07,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1058946663, now seen corresponding path program 1 times [2021-03-26 00:49:07,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:49:07,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478197130] [2021-03-26 00:49:07,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:49:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:49:07,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:07,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:49:07,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:07,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:49:07,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:07,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:49:07,639 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-03-26 00:49:07,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:49:07,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:49:07,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:49:07,649 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 00:49:07,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478197130] [2021-03-26 00:49:07,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:49:07,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 00:49:07,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223065708] [2021-03-26 00:49:07,652 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:49:07,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:49:07,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:49:07,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:49:07,654 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 177 [2021-03-26 00:49:07,654 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 44 transitions, 366 flow. Second operand has 6 states, 6 states have (on average 147.83333333333334) internal successors, (887), 6 states have internal predecessors, (887), 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 00:49:07,654 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:49:07,655 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 177 [2021-03-26 00:49:07,655 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:49:07,716 INFO L129 PetriNetUnfolder]: 37/144 cut-off events. [2021-03-26 00:49:07,716 INFO L130 PetriNetUnfolder]: For 775/855 co-relation queries the response was YES. [2021-03-26 00:49:07,717 INFO L84 FinitePrefix]: Finished finitePrefix Result has 710 conditions, 144 events. 37/144 cut-off events. For 775/855 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 717 event pairs, 0 based on Foata normal form. 53/194 useless extension candidates. Maximal degree in co-relation 682. Up to 95 conditions per place. [2021-03-26 00:49:07,718 INFO L132 encePairwiseOnDemand]: 171/177 looper letters, 2 selfloop transitions, 11 changer transitions 17/44 dead transitions. [2021-03-26 00:49:07,718 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 44 transitions, 392 flow [2021-03-26 00:49:07,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:49:07,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:49:07,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1047 transitions. [2021-03-26 00:49:07,721 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8450363196125908 [2021-03-26 00:49:07,721 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1047 transitions. [2021-03-26 00:49:07,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1047 transitions. [2021-03-26 00:49:07,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:49:07,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1047 transitions. [2021-03-26 00:49:07,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 149.57142857142858) internal successors, (1047), 7 states have internal predecessors, (1047), 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 00:49:07,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 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 00:49:07,727 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 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 00:49:07,727 INFO L185 Difference]: Start difference. First operand has 66 places, 44 transitions, 366 flow. Second operand 7 states and 1047 transitions. [2021-03-26 00:49:07,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 44 transitions, 392 flow [2021-03-26 00:49:07,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 44 transitions, 343 flow, removed 19 selfloop flow, removed 5 redundant places. [2021-03-26 00:49:07,730 INFO L241 Difference]: Finished difference. Result has 65 places, 27 transitions, 219 flow [2021-03-26 00:49:07,730 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=219, PETRI_PLACES=65, PETRI_TRANSITIONS=27} [2021-03-26 00:49:07,731 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 19 predicate places. [2021-03-26 00:49:07,731 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:49:07,731 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 27 transitions, 219 flow [2021-03-26 00:49:07,731 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 27 transitions, 219 flow [2021-03-26 00:49:07,731 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 27 transitions, 219 flow [2021-03-26 00:49:07,738 INFO L129 PetriNetUnfolder]: 7/36 cut-off events. [2021-03-26 00:49:07,739 INFO L130 PetriNetUnfolder]: For 89/91 co-relation queries the response was YES. [2021-03-26 00:49:07,740 INFO L84 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 36 events. 7/36 cut-off events. For 89/91 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 60 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 147. Up to 15 conditions per place. [2021-03-26 00:49:07,740 INFO L142 LiptonReduction]: Number of co-enabled transitions 28 [2021-03-26 00:49:07,981 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-26 00:49:08,432 WARN L205 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 83 [2021-03-26 00:49:08,555 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-03-26 00:49:09,099 WARN L205 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 182 [2021-03-26 00:49:09,296 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-03-26 00:49:10,542 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 337 DAG size of output: 258 [2021-03-26 00:49:10,983 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-03-26 00:49:11,242 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-03-26 00:49:11,472 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-03-26 00:49:11,950 WARN L205 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2021-03-26 00:49:12,396 WARN L205 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2021-03-26 00:49:12,672 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-03-26 00:49:12,806 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-03-26 00:49:12,828 INFO L154 LiptonReduction]: Checked pairs total: 9 [2021-03-26 00:49:12,828 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-26 00:49:12,828 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5097 [2021-03-26 00:49:12,829 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 23 transitions, 210 flow [2021-03-26 00:49:12,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 147.83333333333334) internal successors, (887), 6 states have internal predecessors, (887), 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 00:49:12,829 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:49:12,829 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:49:12,830 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-26 00:49:12,830 INFO L428 AbstractCegarLoop]: === Iteration 17 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:49:12,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:49:12,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1789008056, now seen corresponding path program 1 times [2021-03-26 00:49:12,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:49:12,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601099103] [2021-03-26 00:49:12,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:49:12,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 00:49:12,856 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 00:49:12,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 00:49:12,884 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 00:49:12,908 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 00:49:12,908 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 00:49:12,909 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-26 00:49:12,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 12:49:12 BasicIcfg [2021-03-26 00:49:12,973 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 00:49:12,974 INFO L168 Benchmark]: Toolchain (without parser) took 26385.67 ms. Allocated memory was 255.9 MB in the beginning and 784.3 MB in the end (delta: 528.5 MB). Free memory was 234.7 MB in the beginning and 649.3 MB in the end (delta: -414.6 MB). Peak memory consumption was 114.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:49:12,974 INFO L168 Benchmark]: CDTParser took 0.59 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:49:12,974 INFO L168 Benchmark]: CACSL2BoogieTranslator took 509.91 ms. Allocated memory was 255.9 MB in the beginning and 356.5 MB in the end (delta: 100.7 MB). Free memory was 234.7 MB in the beginning and 317.0 MB in the end (delta: -82.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-03-26 00:49:12,974 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.39 ms. Allocated memory is still 356.5 MB. Free memory was 317.0 MB in the beginning and 314.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:49:12,975 INFO L168 Benchmark]: Boogie Preprocessor took 35.84 ms. Allocated memory is still 356.5 MB. Free memory was 314.2 MB in the beginning and 312.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:49:12,975 INFO L168 Benchmark]: RCFGBuilder took 1630.27 ms. Allocated memory is still 356.5 MB. Free memory was 312.0 MB in the beginning and 266.8 MB in the end (delta: 45.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. [2021-03-26 00:49:12,975 INFO L168 Benchmark]: TraceAbstraction took 24150.15 ms. Allocated memory was 356.5 MB in the beginning and 784.3 MB in the end (delta: 427.8 MB). Free memory was 266.8 MB in the beginning and 649.3 MB in the end (delta: -382.5 MB). Peak memory consumption was 46.3 MB. Max. memory is 16.0 GB. [2021-03-26 00:49:12,976 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 509.91 ms. Allocated memory was 255.9 MB in the beginning and 356.5 MB in the end (delta: 100.7 MB). Free memory was 234.7 MB in the beginning and 317.0 MB in the end (delta: -82.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 55.39 ms. Allocated memory is still 356.5 MB. Free memory was 317.0 MB in the beginning and 314.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 35.84 ms. Allocated memory is still 356.5 MB. Free memory was 314.2 MB in the beginning and 312.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1630.27 ms. Allocated memory is still 356.5 MB. Free memory was 312.0 MB in the beginning and 266.8 MB in the end (delta: 45.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 24150.15 ms. Allocated memory was 356.5 MB in the beginning and 784.3 MB in the end (delta: 427.8 MB). Free memory was 266.8 MB in the beginning and 649.3 MB in the end (delta: -382.5 MB). Peak memory consumption was 46.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6180.8ms, 100 PlacesBefore, 46 PlacesAfterwards, 92 TransitionsBefore, 37 TransitionsAfterwards, 1578 CoEnabledTransitionPairs, 6 FixpointIterations, 26 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 62 TotalNumberOfCompositions, 2818 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1476, positive: 1397, positive conditional: 1397, positive unconditional: 0, negative: 79, negative conditional: 79, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1072, positive: 1046, positive conditional: 0, positive unconditional: 1046, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1072, positive: 1046, positive conditional: 0, positive unconditional: 1046, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1072, positive: 1040, positive conditional: 0, positive unconditional: 1040, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 32, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 405, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 383, negative conditional: 0, negative unconditional: 383, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1476, positive: 351, positive conditional: 351, positive unconditional: 0, negative: 53, negative conditional: 53, negative unconditional: 0, unknown: 1072, unknown conditional: 1072, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 69, Positive conditional cache size: 69, 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: 5435.8ms, 43 PlacesBefore, 33 PlacesAfterwards, 34 TransitionsBefore, 24 TransitionsAfterwards, 318 CoEnabledTransitionPairs, 3 FixpointIterations, 6 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 11 TotalNumberOfCompositions, 863 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 380, positive: 324, positive conditional: 324, positive unconditional: 0, negative: 56, negative conditional: 56, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 138, positive: 123, positive conditional: 16, positive unconditional: 107, negative: 15, negative conditional: 3, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 138, positive: 123, positive conditional: 16, positive unconditional: 107, negative: 15, negative conditional: 3, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 138, positive: 116, positive conditional: 0, positive unconditional: 116, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 22, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 15, negative conditional: 3, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 429, positive: 121, positive conditional: 0, positive unconditional: 121, negative: 308, negative conditional: 59, negative unconditional: 249, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 380, positive: 201, positive conditional: 201, positive unconditional: 0, negative: 41, negative conditional: 41, negative unconditional: 0, unknown: 138, unknown conditional: 138, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 115, Positive cache size: 96, Positive conditional cache size: 96, Positive unconditional cache size: 0, Negative cache size: 19, Negative conditional cache size: 19, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1260.3ms, 37 PlacesBefore, 31 PlacesAfterwards, 24 TransitionsBefore, 22 TransitionsAfterwards, 212 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 618 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 231, positive: 183, positive conditional: 183, positive unconditional: 0, negative: 48, negative conditional: 48, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27, positive: 23, positive conditional: 11, positive unconditional: 12, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 27, positive: 23, positive conditional: 11, positive unconditional: 12, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 27, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 133, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 117, negative conditional: 0, negative unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 231, positive: 160, positive conditional: 160, positive unconditional: 0, negative: 44, negative conditional: 44, negative unconditional: 0, unknown: 27, unknown conditional: 27, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 142, Positive cache size: 119, Positive conditional cache size: 119, Positive unconditional cache size: 0, Negative cache size: 23, Negative conditional cache size: 23, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 147.1ms, 34 PlacesBefore, 34 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 244 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 137 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 50, positive: 40, positive conditional: 40, 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: 19, positive: 15, positive conditional: 6, positive unconditional: 9, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 19, positive: 15, positive conditional: 6, positive unconditional: 9, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 19, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 136, positive: 49, positive conditional: 10, positive unconditional: 38, negative: 87, negative conditional: 0, negative unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 50, positive: 25, positive conditional: 25, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 19, unknown conditional: 19, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 161, Positive cache size: 134, Positive conditional cache size: 134, Positive unconditional cache size: 0, Negative cache size: 27, Negative conditional cache size: 27, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 90.8ms, 37 PlacesBefore, 37 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 262 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 94 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17, positive: 15, positive conditional: 5, positive unconditional: 10, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 17, positive: 15, positive conditional: 5, positive unconditional: 10, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 17, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 71, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 71, negative conditional: 0, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 33, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 17, unknown conditional: 17, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 178, Positive cache size: 149, Positive conditional cache size: 149, Positive unconditional cache size: 0, Negative cache size: 29, Negative conditional cache size: 29, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.0ms, 40 PlacesBefore, 40 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 278 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 35 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13, positive: 11, positive conditional: 11, positive unconditional: 0, negative: 2, negative conditional: 2, 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: 1, 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: 3, positive: 3, positive conditional: 1, 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: 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: 8, positive conditional: 8, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 181, Positive cache size: 152, Positive conditional cache size: 152, Positive unconditional cache size: 0, Negative cache size: 29, Negative conditional cache size: 29, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 659.1ms, 46 PlacesBefore, 46 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 304 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 135 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 70, positive: 62, positive conditional: 62, 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: 9, positive: 9, positive conditional: 8, 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: 9, positive: 9, positive conditional: 8, 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: 9, positive: 9, positive conditional: 0, positive unconditional: 9, 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: 70, positive: 53, positive conditional: 53, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 9, unknown conditional: 9, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 172, Positive cache size: 150, Positive conditional cache size: 150, Positive unconditional cache size: 0, Negative cache size: 22, Negative conditional cache size: 22, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.4ms, 49 PlacesBefore, 49 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 304 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 88 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 34, positive: 29, positive conditional: 29, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 1, 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: 2, positive: 2, positive conditional: 1, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 34, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 174, Positive cache size: 152, Positive conditional cache size: 152, Positive unconditional cache size: 0, Negative cache size: 22, Negative conditional cache size: 22, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.3ms, 49 PlacesBefore, 49 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 316 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 78 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 27, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 5, negative conditional: 5, 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: 1, 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: 3, positive: 3, positive conditional: 1, 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: 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: 27, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 177, Positive cache size: 155, Positive conditional cache size: 155, Positive unconditional cache size: 0, Negative cache size: 22, Negative conditional cache size: 22, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.3ms, 50 PlacesBefore, 50 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 316 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 78 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 30, positive: 25, positive conditional: 25, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 5, 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: 7, positive: 7, positive conditional: 5, 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: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 30, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 184, Positive cache size: 162, Positive conditional cache size: 162, Positive unconditional cache size: 0, Negative cache size: 22, Negative conditional cache size: 22, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.4ms, 54 PlacesBefore, 54 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 344 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 151 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 45, positive: 36, positive conditional: 36, positive unconditional: 0, negative: 9, negative conditional: 9, 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: 2, 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: 4, positive: 4, positive conditional: 2, 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: 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: 45, positive: 32, positive conditional: 32, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 188, Positive cache size: 166, Positive conditional cache size: 166, Positive unconditional cache size: 0, Negative cache size: 22, Negative conditional cache size: 22, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.3ms, 58 PlacesBefore, 58 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 372 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 165 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 55, positive: 44, positive conditional: 44, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 4, 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: 5, positive: 5, positive conditional: 4, 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: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 55, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 193, Positive cache size: 171, Positive conditional cache size: 171, Positive unconditional cache size: 0, Negative cache size: 22, Negative conditional cache size: 22, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.0ms, 62 PlacesBefore, 62 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 380 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 212 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 133, positive: 121, positive conditional: 121, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 35, positive: 35, positive conditional: 26, positive unconditional: 9, 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: 35, positive: 35, positive conditional: 26, positive unconditional: 9, 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: 35, positive: 35, positive conditional: 0, positive unconditional: 35, 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: 133, positive: 86, positive conditional: 86, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 35, unknown conditional: 35, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 228, Positive cache size: 206, Positive conditional cache size: 206, Positive unconditional cache size: 0, Negative cache size: 22, Negative conditional cache size: 22, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.2ms, 60 PlacesBefore, 60 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 380 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 248 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 126, positive: 114, positive conditional: 114, positive unconditional: 0, negative: 12, negative conditional: 12, 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: 126, positive: 99, positive conditional: 99, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 243, Positive cache size: 221, Positive conditional cache size: 221, Positive unconditional cache size: 0, Negative cache size: 22, Negative conditional cache size: 22, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1278.7ms, 66 PlacesBefore, 65 PlacesAfterwards, 44 TransitionsBefore, 43 TransitionsAfterwards, 356 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 69 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 69, positive: 69, positive conditional: 69, 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: 47, positive: 47, positive conditional: 47, 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: 47, positive: 47, positive conditional: 47, 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: 47, positive: 46, positive conditional: 0, positive unconditional: 46, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 27, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 69, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 47, unknown conditional: 47, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 102, Positive cache size: 98, Positive conditional cache size: 98, 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: 50.7ms, 66 PlacesBefore, 66 PlacesAfterwards, 46 TransitionsBefore, 44 TransitionsAfterwards, 316 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 38 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 38, positive: 38, positive conditional: 38, 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: 38, positive: 38, positive conditional: 38, 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: 38, positive: 38, positive conditional: 38, 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: 38, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 38, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 38, unknown conditional: 38, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 94, Positive cache size: 93, Positive conditional cache size: 93, Positive unconditional cache size: 0, Negative cache size: 1, Negative conditional cache size: 1, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5097.0ms, 65 PlacesBefore, 55 PlacesAfterwards, 27 TransitionsBefore, 23 TransitionsAfterwards, 28 CoEnabledTransitionPairs, 3 FixpointIterations, 4 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 9 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9, positive: 9, positive conditional: 9, 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: 8, positive: 8, positive conditional: 8, 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: 8, positive: 8, positive conditional: 8, 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: 8, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 9, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 20, Positive cache size: 20, Positive conditional cache size: 20, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L710] 0 _Bool main$tmp_guard0; [L711] 0 _Bool main$tmp_guard1; [L713] 0 int x = 0; [L715] 0 int y = 0; [L716] 0 _Bool y$flush_delayed; [L717] 0 int y$mem_tmp; [L718] 0 _Bool y$r_buff0_thd0; [L719] 0 _Bool y$r_buff0_thd1; [L720] 0 _Bool y$r_buff0_thd2; [L721] 0 _Bool y$r_buff0_thd3; [L722] 0 _Bool y$r_buff1_thd0; [L723] 0 _Bool y$r_buff1_thd1; [L724] 0 _Bool y$r_buff1_thd2; [L725] 0 _Bool y$r_buff1_thd3; [L726] 0 _Bool y$read_delayed; [L727] 0 int *y$read_delayed_var; [L728] 0 int y$w_buff0; [L729] 0 _Bool y$w_buff0_used; [L730] 0 int y$w_buff1; [L731] 0 _Bool y$w_buff1_used; [L733] 0 int z = 0; [L734] 0 _Bool weak$$choice0; [L735] 0 _Bool weak$$choice2; [L811] 0 pthread_t t2504; [L812] FCALL, FORK 0 pthread_create(&t2504, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L813] 0 pthread_t t2505; [L814] FCALL, FORK 0 pthread_create(&t2505, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L815] 0 pthread_t t2506; [L816] FCALL, FORK 0 pthread_create(&t2506, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L774] 3 y$w_buff1 = y$w_buff0 [L775] 3 y$w_buff0 = 2 [L776] 3 y$w_buff1_used = y$w_buff0_used [L777] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L779] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L780] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L781] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L782] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L783] 3 y$r_buff0_thd3 = (_Bool)1 [L786] 3 z = 1 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L739] 1 z = 2 [L742] 1 x = 1 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L754] 2 x = 2 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L757] 2 y = 1 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L789] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L789] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L790] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L790] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L791] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L791] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L792] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L792] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L793] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L793] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L760] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L760] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L760] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L760] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L761] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L761] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L762] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L762] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L763] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L763] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L764] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L764] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L767] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L769] 2 return 0; [L747] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L749] 1 return 0; [L796] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L798] 3 return 0; [L818] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L822] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L822] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L822] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L822] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L823] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L823] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L824] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L825] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L825] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L826] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L826] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L829] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L830] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L831] 0 y$flush_delayed = weak$$choice2 [L832] 0 y$mem_tmp = y [L833] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L833] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L834] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L834] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L835] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L835] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L836] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L836] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L837] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L837] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L838] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L838] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L839] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L839] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L840] 0 main$tmp_guard1 = !(x == 2 && y == 2 && z == 2) [L841] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L841] 0 y = y$flush_delayed ? y$mem_tmp : y [L842] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 94 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 23947.2ms, OverallIterations: 17, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1610.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6251.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 62 SDtfs, 25 SDslu, 20 SDs, 0 SdLazy, 325 SolverSat, 107 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 417.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 434.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=384occurred in iteration=14, InterpolantAutomatonStates: 77, 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: 47.0ms SsaConstructionTime, 407.1ms SatisfiabilityAnalysisTime, 1095.9ms InterpolantComputationTime, 239 NumberOfCodeBlocks, 239 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 205 ConstructedInterpolants, 0 QuantifiedInterpolants, 1478 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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 RESULT: Ultimate proved your program to be incorrect! Received shutdown request...