/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe017_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 10:35:04,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 10:35:04,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 10:35:04,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 10:35:04,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 10:35:04,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 10:35:04,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 10:35:04,327 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 10:35:04,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 10:35:04,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 10:35:04,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 10:35:04,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 10:35:04,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 10:35:04,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 10:35:04,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 10:35:04,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 10:35:04,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 10:35:04,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 10:35:04,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 10:35:04,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 10:35:04,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 10:35:04,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 10:35:04,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 10:35:04,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 10:35:04,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 10:35:04,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 10:35:04,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 10:35:04,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 10:35:04,355 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 10:35:04,404 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 10:35:04,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 10:35:04,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 10:35:04,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 10:35:04,406 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 10:35:04,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 10:35:04,406 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 10:35:04,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 10:35:04,407 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 10:35:04,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 10:35:04,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 10:35:04,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 10:35:04,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 10:35:04,407 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 10:35:04,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 10:35:04,408 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 10:35:04,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 10:35:04,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 10:35:04,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 10:35:04,408 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 10:35:04,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 10:35:04,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:35:04,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 10:35:04,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 10:35:04,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 10:35:04,409 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 10:35:04,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 10:35:04,410 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 10:35:04,410 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 10:35:04,410 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 10:35:04,410 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 10:35:04,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 10:35:04,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 10:35:04,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 10:35:04,747 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 10:35:04,751 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 10:35:04,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_rmo.oepc.i [2021-03-26 10:35:04,814 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ae44920e/3ac477af7cde41588348b41843a5c84b/FLAG01001efe4 [2021-03-26 10:35:05,398 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 10:35:05,398 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_rmo.oepc.i [2021-03-26 10:35:05,424 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ae44920e/3ac477af7cde41588348b41843a5c84b/FLAG01001efe4 [2021-03-26 10:35:05,827 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ae44920e/3ac477af7cde41588348b41843a5c84b [2021-03-26 10:35:05,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 10:35:05,830 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 10:35:05,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 10:35:05,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 10:35:05,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 10:35:05,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:35:05" (1/1) ... [2021-03-26 10:35:05,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b7ea82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:05, skipping insertion in model container [2021-03-26 10:35:05,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:35:05" (1/1) ... [2021-03-26 10:35:05,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 10:35:05,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 10:35:06,031 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/safe017_rmo.oepc.i[950,963] [2021-03-26 10:35:06,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:35:06,262 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 10:35:06,274 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/safe017_rmo.oepc.i[950,963] [2021-03-26 10:35:06,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:35:06,377 INFO L208 MainTranslator]: Completed translation [2021-03-26 10:35:06,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:06 WrapperNode [2021-03-26 10:35:06,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 10:35:06,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 10:35:06,382 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 10:35:06,382 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 10:35:06,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:06" (1/1) ... [2021-03-26 10:35:06,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:06" (1/1) ... [2021-03-26 10:35:06,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 10:35:06,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 10:35:06,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 10:35:06,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 10:35:06,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:06" (1/1) ... [2021-03-26 10:35:06,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:06" (1/1) ... [2021-03-26 10:35:06,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:06" (1/1) ... [2021-03-26 10:35:06,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:06" (1/1) ... [2021-03-26 10:35:06,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:06" (1/1) ... [2021-03-26 10:35:06,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:06" (1/1) ... [2021-03-26 10:35:06,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:06" (1/1) ... [2021-03-26 10:35:06,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 10:35:06,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 10:35:06,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 10:35:06,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 10:35:06,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:35:06,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 10:35:06,533 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 10:35:06,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 10:35:06,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 10:35:06,534 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 10:35:06,534 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 10:35:06,534 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 10:35:06,534 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 10:35:06,534 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 10:35:06,534 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 10:35:06,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 10:35:06,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 10:35:06,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 10:35:06,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 10:35:06,536 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 10:35:08,138 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 10:35:08,138 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-26 10:35:08,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:35:08 BoogieIcfgContainer [2021-03-26 10:35:08,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 10:35:08,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 10:35:08,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 10:35:08,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 10:35:08,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 10:35:05" (1/3) ... [2021-03-26 10:35:08,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2889612f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:35:08, skipping insertion in model container [2021-03-26 10:35:08,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:06" (2/3) ... [2021-03-26 10:35:08,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2889612f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:35:08, skipping insertion in model container [2021-03-26 10:35:08,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:35:08" (3/3) ... [2021-03-26 10:35:08,148 INFO L111 eAbstractionObserver]: Analyzing ICFG safe017_rmo.oepc.i [2021-03-26 10:35:08,153 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 10:35:08,157 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-26 10:35:08,157 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 10:35:08,185 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,186 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,186 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,186 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,186 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,186 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,186 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,186 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,186 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,187 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,187 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,187 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,187 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,187 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,187 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,187 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,188 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,188 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,188 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,188 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,188 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,188 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,188 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,189 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,189 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,189 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,189 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,189 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,189 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,189 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,190 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,190 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,190 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,190 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,190 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,191 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,191 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,191 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,191 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,193 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,193 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,193 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,193 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,193 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,193 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,193 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,194 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,194 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,194 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,194 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,194 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,194 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,194 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,195 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,195 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,195 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,195 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,195 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,195 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,195 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,195 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,195 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,196 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,196 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,196 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,196 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,196 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,196 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,196 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,197 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,197 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,197 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,197 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,197 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,199 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,199 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,199 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,200 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,200 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,200 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,200 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,200 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,200 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,200 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,202 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,202 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,202 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,202 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,202 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,202 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,202 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,203 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,203 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,203 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,204 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,204 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,204 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,205 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,205 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,205 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,205 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,205 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,205 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,205 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,205 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,206 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,206 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:35:08,222 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-26 10:35:08,239 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:35:08,239 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:35:08,239 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:35:08,239 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:35:08,239 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:35:08,239 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:35:08,239 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:35:08,240 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:35:08,248 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 95 transitions, 205 flow [2021-03-26 10:35:08,286 INFO L129 PetriNetUnfolder]: 2/92 cut-off events. [2021-03-26 10:35:08,286 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:35:08,300 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 3. Compared 61 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 10:35:08,300 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 95 transitions, 205 flow [2021-03-26 10:35:08,304 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 92 transitions, 193 flow [2021-03-26 10:35:08,305 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:08,320 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 92 transitions, 193 flow [2021-03-26 10:35:08,324 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 92 transitions, 193 flow [2021-03-26 10:35:08,329 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 92 transitions, 193 flow [2021-03-26 10:35:08,358 INFO L129 PetriNetUnfolder]: 2/92 cut-off events. [2021-03-26 10:35:08,358 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:35:08,359 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 3. 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 10:35:08,362 INFO L142 LiptonReduction]: Number of co-enabled transitions 1602 [2021-03-26 10:35:10,007 WARN L205 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 185 [2021-03-26 10:35:10,287 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-03-26 10:35:11,605 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 310 DAG size of output: 265 [2021-03-26 10:35:12,225 WARN L205 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2021-03-26 10:35:12,499 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-26 10:35:12,867 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-26 10:35:12,974 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-26 10:35:14,067 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-03-26 10:35:14,355 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-03-26 10:35:14,940 WARN L205 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2021-03-26 10:35:15,554 WARN L205 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2021-03-26 10:35:15,846 INFO L154 LiptonReduction]: Checked pairs total: 2709 [2021-03-26 10:35:15,846 INFO L156 LiptonReduction]: Total number of compositions: 66 [2021-03-26 10:35:15,849 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7545 [2021-03-26 10:35:15,860 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-03-26 10:35:15,860 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:35:15,860 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:15,861 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:15,861 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:15,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:15,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1950849355, now seen corresponding path program 1 times [2021-03-26 10:35:15,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:15,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002628888] [2021-03-26 10:35:15,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:16,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:16,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:16,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:35:16,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:16,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:16,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:16,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002628888] [2021-03-26 10:35:16,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:16,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:35:16,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795155251] [2021-03-26 10:35:16,136 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:35:16,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:16,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:35:16,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:35:16,154 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 161 [2021-03-26 10:35:16,159 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:16,160 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:16,160 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 161 [2021-03-26 10:35:16,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:16,271 INFO L129 PetriNetUnfolder]: 69/176 cut-off events. [2021-03-26 10:35:16,272 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:35:16,273 INFO L84 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 176 events. 69/176 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 797 event pairs, 54 based on Foata normal form. 9/164 useless extension candidates. Maximal degree in co-relation 284. Up to 89 conditions per place. [2021-03-26 10:35:16,276 INFO L132 encePairwiseOnDemand]: 157/161 looper letters, 9 selfloop transitions, 2 changer transitions 3/39 dead transitions. [2021-03-26 10:35:16,276 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 39 transitions, 113 flow [2021-03-26 10:35:16,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:35:16,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:35:16,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 427 transitions. [2021-03-26 10:35:16,295 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8840579710144928 [2021-03-26 10:35:16,296 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 427 transitions. [2021-03-26 10:35:16,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 427 transitions. [2021-03-26 10:35:16,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:16,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 427 transitions. [2021-03-26 10:35:16,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:16,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:16,318 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:16,319 INFO L185 Difference]: Start difference. First operand has 46 places, 37 transitions, 83 flow. Second operand 3 states and 427 transitions. [2021-03-26 10:35:16,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 39 transitions, 113 flow [2021-03-26 10:35:16,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 39 transitions, 110 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 10:35:16,324 INFO L241 Difference]: Finished difference. Result has 43 places, 32 transitions, 74 flow [2021-03-26 10:35:16,325 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, 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=74, PETRI_PLACES=43, PETRI_TRANSITIONS=32} [2021-03-26 10:35:16,326 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2021-03-26 10:35:16,326 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:16,326 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 32 transitions, 74 flow [2021-03-26 10:35:16,327 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 32 transitions, 74 flow [2021-03-26 10:35:16,328 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 32 transitions, 74 flow [2021-03-26 10:35:16,336 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2021-03-26 10:35:16,336 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:35:16,337 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 32 events. 0/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 30 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 10:35:16,338 INFO L142 LiptonReduction]: Number of co-enabled transitions 234 [2021-03-26 10:35:16,980 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-26 10:35:17,280 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-26 10:35:17,970 WARN L205 SmtUtils]: Spent 687.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-26 10:35:18,563 WARN L205 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-26 10:35:19,337 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-03-26 10:35:19,497 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-03-26 10:35:19,569 INFO L154 LiptonReduction]: Checked pairs total: 1040 [2021-03-26 10:35:19,569 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-26 10:35:19,569 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3243 [2021-03-26 10:35:19,570 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 54 flow [2021-03-26 10:35:19,571 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:19,571 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:19,571 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:19,571 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 10:35:19,571 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:19,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:19,572 INFO L82 PathProgramCache]: Analyzing trace with hash 344608737, now seen corresponding path program 1 times [2021-03-26 10:35:19,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:19,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518843290] [2021-03-26 10:35:19,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:19,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:19,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:19,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:35:19,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:19,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:19,705 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-26 10:35:19,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 10:35:19,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:19,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518843290] [2021-03-26 10:35:19,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:19,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:35:19,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26981650] [2021-03-26 10:35:19,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:35:19,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:19,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:35:19,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:35:19,712 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 171 [2021-03-26 10:35:19,713 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 54 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 10:35:19,713 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:19,713 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 171 [2021-03-26 10:35:19,713 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:19,736 INFO L129 PetriNetUnfolder]: 12/53 cut-off events. [2021-03-26 10:35:19,737 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:35:19,737 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 53 events. 12/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 164 event pairs, 2 based on Foata normal form. 1/49 useless extension candidates. Maximal degree in co-relation 80. Up to 25 conditions per place. [2021-03-26 10:35:19,737 INFO L132 encePairwiseOnDemand]: 167/171 looper letters, 5 selfloop transitions, 3 changer transitions 0/25 dead transitions. [2021-03-26 10:35:19,737 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 25 transitions, 76 flow [2021-03-26 10:35:19,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:35:19,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:35:19,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 438 transitions. [2021-03-26 10:35:19,745 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8538011695906432 [2021-03-26 10:35:19,745 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 438 transitions. [2021-03-26 10:35:19,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 438 transitions. [2021-03-26 10:35:19,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:19,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 438 transitions. [2021-03-26 10:35:19,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:19,748 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 10:35:19,748 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 10:35:19,748 INFO L185 Difference]: Start difference. First operand has 31 places, 22 transitions, 54 flow. Second operand 3 states and 438 transitions. [2021-03-26 10:35:19,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 25 transitions, 76 flow [2021-03-26 10:35:19,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 25 transitions, 72 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:35:19,750 INFO L241 Difference]: Finished difference. Result has 32 places, 24 transitions, 69 flow [2021-03-26 10:35:19,750 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=32, PETRI_TRANSITIONS=24} [2021-03-26 10:35:19,750 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -14 predicate places. [2021-03-26 10:35:19,750 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:19,751 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 24 transitions, 69 flow [2021-03-26 10:35:19,751 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 24 transitions, 69 flow [2021-03-26 10:35:19,751 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 24 transitions, 69 flow [2021-03-26 10:35:19,757 INFO L129 PetriNetUnfolder]: 3/32 cut-off events. [2021-03-26 10:35:19,757 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:35:19,757 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 32 events. 3/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 62 event pairs, 1 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 44. Up to 10 conditions per place. [2021-03-26 10:35:19,757 INFO L142 LiptonReduction]: Number of co-enabled transitions 242 [2021-03-26 10:35:20,155 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-26 10:35:20,276 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-26 10:35:20,535 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-26 10:35:20,657 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-26 10:35:20,728 INFO L154 LiptonReduction]: Checked pairs total: 444 [2021-03-26 10:35:20,728 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:35:20,728 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 978 [2021-03-26 10:35:20,729 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 67 flow [2021-03-26 10:35:20,730 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 10:35:20,730 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:20,730 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:20,730 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 10:35:20,730 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:20,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:20,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1004352304, now seen corresponding path program 1 times [2021-03-26 10:35:20,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:20,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020814952] [2021-03-26 10:35:20,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:20,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:20,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:20,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:20,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020814952] [2021-03-26 10:35:20,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:20,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 10:35:20,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841472601] [2021-03-26 10:35:20,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:35:20,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:20,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:35:20,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:35:20,848 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 172 [2021-03-26 10:35:20,849 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 23 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:20,849 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:20,849 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 172 [2021-03-26 10:35:20,849 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:20,874 INFO L129 PetriNetUnfolder]: 3/31 cut-off events. [2021-03-26 10:35:20,874 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-26 10:35:20,875 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 31 events. 3/31 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 60 event pairs, 1 based on Foata normal form. 1/29 useless extension candidates. Maximal degree in co-relation 48. Up to 10 conditions per place. [2021-03-26 10:35:20,875 INFO L132 encePairwiseOnDemand]: 169/172 looper letters, 1 selfloop transitions, 2 changer transitions 0/23 dead transitions. [2021-03-26 10:35:20,875 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 23 transitions, 73 flow [2021-03-26 10:35:20,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:35:20,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:35:20,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions. [2021-03-26 10:35:20,877 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8798449612403101 [2021-03-26 10:35:20,877 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 454 transitions. [2021-03-26 10:35:20,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 454 transitions. [2021-03-26 10:35:20,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:20,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 454 transitions. [2021-03-26 10:35:20,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:20,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:20,884 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:20,884 INFO L185 Difference]: Start difference. First operand has 31 places, 23 transitions, 67 flow. Second operand 3 states and 454 transitions. [2021-03-26 10:35:20,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 23 transitions, 73 flow [2021-03-26 10:35:20,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 23 transitions, 70 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:35:20,886 INFO L241 Difference]: Finished difference. Result has 33 places, 23 transitions, 72 flow [2021-03-26 10:35:20,886 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=33, PETRI_TRANSITIONS=23} [2021-03-26 10:35:20,886 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -13 predicate places. [2021-03-26 10:35:20,886 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:20,886 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 23 transitions, 72 flow [2021-03-26 10:35:20,887 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 23 transitions, 72 flow [2021-03-26 10:35:20,887 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 23 transitions, 72 flow [2021-03-26 10:35:20,892 INFO L129 PetriNetUnfolder]: 3/31 cut-off events. [2021-03-26 10:35:20,892 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 10:35:20,894 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 31 events. 3/31 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 63 event pairs, 1 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 47. Up to 10 conditions per place. [2021-03-26 10:35:20,894 INFO L142 LiptonReduction]: Number of co-enabled transitions 240 [2021-03-26 10:35:20,948 INFO L154 LiptonReduction]: Checked pairs total: 209 [2021-03-26 10:35:20,948 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:20,948 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 62 [2021-03-26 10:35:20,949 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 23 transitions, 72 flow [2021-03-26 10:35:20,949 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:20,950 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:20,950 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:20,950 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 10:35:20,950 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:20,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:20,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1655303566, now seen corresponding path program 1 times [2021-03-26 10:35:20,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:20,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314136756] [2021-03-26 10:35:20,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:20,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:21,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:21,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:35:21,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:21,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:35:21,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:21,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314136756] [2021-03-26 10:35:21,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:21,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:35:21,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165870296] [2021-03-26 10:35:21,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:35:21,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:21,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:35:21,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:35:21,042 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 172 [2021-03-26 10:35:21,042 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 128.75) internal successors, (515), 4 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:21,042 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:21,042 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 172 [2021-03-26 10:35:21,042 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:21,143 INFO L129 PetriNetUnfolder]: 106/222 cut-off events. [2021-03-26 10:35:21,143 INFO L130 PetriNetUnfolder]: For 69/69 co-relation queries the response was YES. [2021-03-26 10:35:21,144 INFO L84 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 222 events. 106/222 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 999 event pairs, 78 based on Foata normal form. 1/201 useless extension candidates. Maximal degree in co-relation 463. Up to 163 conditions per place. [2021-03-26 10:35:21,146 INFO L132 encePairwiseOnDemand]: 167/172 looper letters, 8 selfloop transitions, 4 changer transitions 0/27 dead transitions. [2021-03-26 10:35:21,146 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 27 transitions, 104 flow [2021-03-26 10:35:21,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:35:21,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:35:21,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2021-03-26 10:35:21,148 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7693798449612403 [2021-03-26 10:35:21,148 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2021-03-26 10:35:21,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2021-03-26 10:35:21,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:21,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2021-03-26 10:35:21,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:21,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:21,151 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:21,151 INFO L185 Difference]: Start difference. First operand has 33 places, 23 transitions, 72 flow. Second operand 3 states and 397 transitions. [2021-03-26 10:35:21,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 27 transitions, 104 flow [2021-03-26 10:35:21,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 27 transitions, 100 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:35:21,153 INFO L241 Difference]: Finished difference. Result has 34 places, 26 transitions, 94 flow [2021-03-26 10:35:21,153 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2021-03-26 10:35:21,153 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -12 predicate places. [2021-03-26 10:35:21,153 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:21,153 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 26 transitions, 94 flow [2021-03-26 10:35:21,154 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 26 transitions, 94 flow [2021-03-26 10:35:21,154 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 26 transitions, 94 flow [2021-03-26 10:35:21,164 INFO L129 PetriNetUnfolder]: 26/83 cut-off events. [2021-03-26 10:35:21,164 INFO L130 PetriNetUnfolder]: For 35/43 co-relation queries the response was YES. [2021-03-26 10:35:21,164 INFO L84 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 83 events. 26/83 cut-off events. For 35/43 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 298 event pairs, 13 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 166. Up to 43 conditions per place. [2021-03-26 10:35:21,165 INFO L142 LiptonReduction]: Number of co-enabled transitions 262 [2021-03-26 10:35:21,229 INFO L154 LiptonReduction]: Checked pairs total: 148 [2021-03-26 10:35:21,230 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:21,230 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 77 [2021-03-26 10:35:21,231 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 94 flow [2021-03-26 10:35:21,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 128.75) internal successors, (515), 4 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:21,231 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:21,231 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:21,232 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 10:35:21,232 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:21,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:21,232 INFO L82 PathProgramCache]: Analyzing trace with hash 714472308, now seen corresponding path program 1 times [2021-03-26 10:35:21,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:21,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321723691] [2021-03-26 10:35:21,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:21,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:21,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:21,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:35:21,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:21,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:21,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:21,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321723691] [2021-03-26 10:35:21,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:21,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:35:21,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195146171] [2021-03-26 10:35:21,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:35:21,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:21,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:35:21,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:35:21,275 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 172 [2021-03-26 10:35:21,276 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:21,276 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:21,276 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 172 [2021-03-26 10:35:21,276 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:21,301 INFO L129 PetriNetUnfolder]: 24/102 cut-off events. [2021-03-26 10:35:21,302 INFO L130 PetriNetUnfolder]: For 107/151 co-relation queries the response was YES. [2021-03-26 10:35:21,302 INFO L84 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 102 events. 24/102 cut-off events. For 107/151 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 444 event pairs, 13 based on Foata normal form. 7/105 useless extension candidates. Maximal degree in co-relation 216. Up to 44 conditions per place. [2021-03-26 10:35:21,303 INFO L132 encePairwiseOnDemand]: 169/172 looper letters, 5 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2021-03-26 10:35:21,303 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 27 transitions, 113 flow [2021-03-26 10:35:21,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:35:21,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:35:21,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 449 transitions. [2021-03-26 10:35:21,305 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8701550387596899 [2021-03-26 10:35:21,305 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 449 transitions. [2021-03-26 10:35:21,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 449 transitions. [2021-03-26 10:35:21,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:21,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 449 transitions. [2021-03-26 10:35:21,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:21,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:21,308 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:21,308 INFO L185 Difference]: Start difference. First operand has 34 places, 26 transitions, 94 flow. Second operand 3 states and 449 transitions. [2021-03-26 10:35:21,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 27 transitions, 113 flow [2021-03-26 10:35:21,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 27 transitions, 109 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:35:21,310 INFO L241 Difference]: Finished difference. Result has 36 places, 26 transitions, 101 flow [2021-03-26 10:35:21,310 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2021-03-26 10:35:21,310 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -10 predicate places. [2021-03-26 10:35:21,310 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:21,310 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 26 transitions, 101 flow [2021-03-26 10:35:21,311 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 26 transitions, 101 flow [2021-03-26 10:35:21,311 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 26 transitions, 101 flow [2021-03-26 10:35:21,323 INFO L129 PetriNetUnfolder]: 19/85 cut-off events. [2021-03-26 10:35:21,324 INFO L130 PetriNetUnfolder]: For 95/117 co-relation queries the response was YES. [2021-03-26 10:35:21,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 85 events. 19/85 cut-off events. For 95/117 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 350 event pairs, 8 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 183. Up to 40 conditions per place. [2021-03-26 10:35:21,325 INFO L142 LiptonReduction]: Number of co-enabled transitions 262 [2021-03-26 10:35:21,337 INFO L154 LiptonReduction]: Checked pairs total: 158 [2021-03-26 10:35:21,338 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:21,338 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 28 [2021-03-26 10:35:21,341 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 101 flow [2021-03-26 10:35:21,341 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:21,341 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:21,342 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:21,342 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 10:35:21,342 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:21,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:21,350 INFO L82 PathProgramCache]: Analyzing trace with hash -223841830, now seen corresponding path program 1 times [2021-03-26 10:35:21,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:21,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201502115] [2021-03-26 10:35:21,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:21,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:21,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:21,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:21,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:21,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:21,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201502115] [2021-03-26 10:35:21,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:21,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:35:21,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472271] [2021-03-26 10:35:21,413 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:35:21,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:21,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:35:21,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:35:21,414 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 172 [2021-03-26 10:35:21,415 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 101 flow. Second operand has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:21,415 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:21,415 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 172 [2021-03-26 10:35:21,415 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:21,451 INFO L129 PetriNetUnfolder]: 28/136 cut-off events. [2021-03-26 10:35:21,451 INFO L130 PetriNetUnfolder]: For 264/340 co-relation queries the response was YES. [2021-03-26 10:35:21,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 136 events. 28/136 cut-off events. For 264/340 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 739 event pairs, 14 based on Foata normal form. 15/141 useless extension candidates. Maximal degree in co-relation 284. Up to 59 conditions per place. [2021-03-26 10:35:21,452 INFO L132 encePairwiseOnDemand]: 167/172 looper letters, 4 selfloop transitions, 4 changer transitions 2/29 dead transitions. [2021-03-26 10:35:21,452 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 29 transitions, 138 flow [2021-03-26 10:35:21,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:35:21,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:35:21,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 587 transitions. [2021-03-26 10:35:21,455 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8531976744186046 [2021-03-26 10:35:21,455 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 587 transitions. [2021-03-26 10:35:21,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 587 transitions. [2021-03-26 10:35:21,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:21,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 587 transitions. [2021-03-26 10:35:21,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:21,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:21,459 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:21,459 INFO L185 Difference]: Start difference. First operand has 36 places, 26 transitions, 101 flow. Second operand 4 states and 587 transitions. [2021-03-26 10:35:21,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 29 transitions, 138 flow [2021-03-26 10:35:21,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 29 transitions, 129 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-26 10:35:21,461 INFO L241 Difference]: Finished difference. Result has 39 places, 26 transitions, 109 flow [2021-03-26 10:35:21,461 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=109, PETRI_PLACES=39, PETRI_TRANSITIONS=26} [2021-03-26 10:35:21,461 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -7 predicate places. [2021-03-26 10:35:21,461 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:21,461 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 26 transitions, 109 flow [2021-03-26 10:35:21,461 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 26 transitions, 109 flow [2021-03-26 10:35:21,462 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 26 transitions, 109 flow [2021-03-26 10:35:21,472 INFO L129 PetriNetUnfolder]: 19/89 cut-off events. [2021-03-26 10:35:21,472 INFO L130 PetriNetUnfolder]: For 124/136 co-relation queries the response was YES. [2021-03-26 10:35:21,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 89 events. 19/89 cut-off events. For 124/136 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 373 event pairs, 11 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 199. Up to 41 conditions per place. [2021-03-26 10:35:21,473 INFO L142 LiptonReduction]: Number of co-enabled transitions 242 [2021-03-26 10:35:21,480 INFO L154 LiptonReduction]: Checked pairs total: 137 [2021-03-26 10:35:21,481 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:21,481 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-03-26 10:35:21,481 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 26 transitions, 109 flow [2021-03-26 10:35:21,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:21,482 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:21,482 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:21,482 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 10:35:21,482 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:21,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:21,483 INFO L82 PathProgramCache]: Analyzing trace with hash 724751660, now seen corresponding path program 2 times [2021-03-26 10:35:21,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:21,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427799752] [2021-03-26 10:35:21,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:21,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:21,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 10:35:21,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:21,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:35:21,586 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-03-26 10:35:21,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 10:35:21,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:21,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427799752] [2021-03-26 10:35:21,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:21,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:35:21,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987199351] [2021-03-26 10:35:21,605 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:35:21,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:21,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:35:21,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:35:21,606 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 172 [2021-03-26 10:35:21,607 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 26 transitions, 109 flow. Second operand has 5 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:21,607 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:21,607 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 172 [2021-03-26 10:35:21,607 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:21,719 INFO L129 PetriNetUnfolder]: 116/260 cut-off events. [2021-03-26 10:35:21,719 INFO L130 PetriNetUnfolder]: For 374/424 co-relation queries the response was YES. [2021-03-26 10:35:21,720 INFO L84 FinitePrefix]: Finished finitePrefix Result has 688 conditions, 260 events. 116/260 cut-off events. For 374/424 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1205 event pairs, 27 based on Foata normal form. 7/255 useless extension candidates. Maximal degree in co-relation 672. Up to 191 conditions per place. [2021-03-26 10:35:21,722 INFO L132 encePairwiseOnDemand]: 166/172 looper letters, 10 selfloop transitions, 8 changer transitions 0/33 dead transitions. [2021-03-26 10:35:21,722 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 33 transitions, 167 flow [2021-03-26 10:35:21,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:35:21,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:35:21,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 530 transitions. [2021-03-26 10:35:21,724 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7703488372093024 [2021-03-26 10:35:21,724 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 530 transitions. [2021-03-26 10:35:21,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 530 transitions. [2021-03-26 10:35:21,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:21,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 530 transitions. [2021-03-26 10:35:21,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 132.5) internal successors, (530), 4 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:21,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:21,727 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:21,728 INFO L185 Difference]: Start difference. First operand has 39 places, 26 transitions, 109 flow. Second operand 4 states and 530 transitions. [2021-03-26 10:35:21,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 33 transitions, 167 flow [2021-03-26 10:35:21,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 33 transitions, 157 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-26 10:35:21,732 INFO L241 Difference]: Finished difference. Result has 41 places, 31 transitions, 155 flow [2021-03-26 10:35:21,732 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=155, PETRI_PLACES=41, PETRI_TRANSITIONS=31} [2021-03-26 10:35:21,732 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -5 predicate places. [2021-03-26 10:35:21,732 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:21,733 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 31 transitions, 155 flow [2021-03-26 10:35:21,733 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 31 transitions, 155 flow [2021-03-26 10:35:21,733 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 31 transitions, 155 flow [2021-03-26 10:35:21,749 INFO L129 PetriNetUnfolder]: 24/108 cut-off events. [2021-03-26 10:35:21,749 INFO L130 PetriNetUnfolder]: For 222/263 co-relation queries the response was YES. [2021-03-26 10:35:21,750 INFO L84 FinitePrefix]: Finished finitePrefix Result has 309 conditions, 108 events. 24/108 cut-off events. For 222/263 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 507 event pairs, 4 based on Foata normal form. 1/103 useless extension candidates. Maximal degree in co-relation 294. Up to 48 conditions per place. [2021-03-26 10:35:21,751 INFO L142 LiptonReduction]: Number of co-enabled transitions 296 [2021-03-26 10:35:21,807 INFO L154 LiptonReduction]: Checked pairs total: 132 [2021-03-26 10:35:21,807 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:21,807 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 75 [2021-03-26 10:35:21,808 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 31 transitions, 155 flow [2021-03-26 10:35:21,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:21,808 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:21,808 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:21,808 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 10:35:21,808 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:21,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:21,809 INFO L82 PathProgramCache]: Analyzing trace with hash 724750606, now seen corresponding path program 1 times [2021-03-26 10:35:21,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:21,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957465527] [2021-03-26 10:35:21,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:21,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:21,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:21,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:21,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:21,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:21,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:35:21,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:21,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957465527] [2021-03-26 10:35:21,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:21,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:35:21,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631089738] [2021-03-26 10:35:21,870 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:35:21,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:21,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:35:21,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:35:21,872 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 172 [2021-03-26 10:35:21,872 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 155 flow. Second operand has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:21,872 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:21,872 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 172 [2021-03-26 10:35:21,873 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:21,951 INFO L129 PetriNetUnfolder]: 121/269 cut-off events. [2021-03-26 10:35:21,951 INFO L130 PetriNetUnfolder]: For 557/664 co-relation queries the response was YES. [2021-03-26 10:35:21,952 INFO L84 FinitePrefix]: Finished finitePrefix Result has 872 conditions, 269 events. 121/269 cut-off events. For 557/664 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1261 event pairs, 49 based on Foata normal form. 10/268 useless extension candidates. Maximal degree in co-relation 855. Up to 176 conditions per place. [2021-03-26 10:35:21,954 INFO L132 encePairwiseOnDemand]: 165/172 looper letters, 14 selfloop transitions, 10 changer transitions 0/39 dead transitions. [2021-03-26 10:35:21,954 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 39 transitions, 243 flow [2021-03-26 10:35:21,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:35:21,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:35:21,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 562 transitions. [2021-03-26 10:35:21,956 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8168604651162791 [2021-03-26 10:35:21,957 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 562 transitions. [2021-03-26 10:35:21,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 562 transitions. [2021-03-26 10:35:21,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:21,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 562 transitions. [2021-03-26 10:35:21,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 140.5) internal successors, (562), 4 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:21,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:21,960 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:21,960 INFO L185 Difference]: Start difference. First operand has 41 places, 31 transitions, 155 flow. Second operand 4 states and 562 transitions. [2021-03-26 10:35:21,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 39 transitions, 243 flow [2021-03-26 10:35:21,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 39 transitions, 239 flow, removed 2 selfloop flow, removed 0 redundant places. [2021-03-26 10:35:21,963 INFO L241 Difference]: Finished difference. Result has 45 places, 35 transitions, 201 flow [2021-03-26 10:35:21,964 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=201, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2021-03-26 10:35:21,964 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2021-03-26 10:35:21,964 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:21,964 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 35 transitions, 201 flow [2021-03-26 10:35:21,964 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 35 transitions, 201 flow [2021-03-26 10:35:21,965 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 35 transitions, 201 flow [2021-03-26 10:35:22,000 INFO L129 PetriNetUnfolder]: 86/222 cut-off events. [2021-03-26 10:35:22,000 INFO L130 PetriNetUnfolder]: For 617/659 co-relation queries the response was YES. [2021-03-26 10:35:22,001 INFO L84 FinitePrefix]: Finished finitePrefix Result has 730 conditions, 222 events. 86/222 cut-off events. For 617/659 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1129 event pairs, 36 based on Foata normal form. 1/201 useless extension candidates. Maximal degree in co-relation 712. Up to 108 conditions per place. [2021-03-26 10:35:22,003 INFO L142 LiptonReduction]: Number of co-enabled transitions 302 [2021-03-26 10:35:22,007 INFO L154 LiptonReduction]: Checked pairs total: 63 [2021-03-26 10:35:22,007 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:22,007 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-03-26 10:35:22,008 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 201 flow [2021-03-26 10:35:22,008 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:22,008 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:22,008 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:22,008 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 10:35:22,008 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:22,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:22,009 INFO L82 PathProgramCache]: Analyzing trace with hash 700346476, now seen corresponding path program 2 times [2021-03-26 10:35:22,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:22,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151507947] [2021-03-26 10:35:22,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:22,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:22,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:35:22,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:22,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 10:35:22,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:22,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:35:22,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:22,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151507947] [2021-03-26 10:35:22,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:22,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:35:22,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357303171] [2021-03-26 10:35:22,109 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:35:22,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:22,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:35:22,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:35:22,110 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 172 [2021-03-26 10:35:22,111 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 201 flow. Second operand has 5 states, 5 states have (on average 126.8) internal successors, (634), 5 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:22,111 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:22,111 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 172 [2021-03-26 10:35:22,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:22,225 INFO L129 PetriNetUnfolder]: 114/266 cut-off events. [2021-03-26 10:35:22,225 INFO L130 PetriNetUnfolder]: For 781/862 co-relation queries the response was YES. [2021-03-26 10:35:22,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 955 conditions, 266 events. 114/266 cut-off events. For 781/862 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1290 event pairs, 28 based on Foata normal form. 28/283 useless extension candidates. Maximal degree in co-relation 935. Up to 147 conditions per place. [2021-03-26 10:35:22,228 INFO L132 encePairwiseOnDemand]: 165/172 looper letters, 11 selfloop transitions, 17 changer transitions 2/45 dead transitions. [2021-03-26 10:35:22,228 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 45 transitions, 317 flow [2021-03-26 10:35:22,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:35:22,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:35:22,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 654 transitions. [2021-03-26 10:35:22,231 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7604651162790698 [2021-03-26 10:35:22,231 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 654 transitions. [2021-03-26 10:35:22,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 654 transitions. [2021-03-26 10:35:22,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:22,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 654 transitions. [2021-03-26 10:35:22,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.8) internal successors, (654), 5 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:22,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:22,234 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:22,234 INFO L185 Difference]: Start difference. First operand has 45 places, 35 transitions, 201 flow. Second operand 5 states and 654 transitions. [2021-03-26 10:35:22,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 45 transitions, 317 flow [2021-03-26 10:35:22,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 45 transitions, 303 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-03-26 10:35:22,239 INFO L241 Difference]: Finished difference. Result has 51 places, 41 transitions, 297 flow [2021-03-26 10:35:22,239 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=297, PETRI_PLACES=51, PETRI_TRANSITIONS=41} [2021-03-26 10:35:22,239 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 5 predicate places. [2021-03-26 10:35:22,239 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:22,239 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 41 transitions, 297 flow [2021-03-26 10:35:22,239 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 41 transitions, 297 flow [2021-03-26 10:35:22,240 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 41 transitions, 297 flow [2021-03-26 10:35:22,267 INFO L129 PetriNetUnfolder]: 72/223 cut-off events. [2021-03-26 10:35:22,267 INFO L130 PetriNetUnfolder]: For 1153/1237 co-relation queries the response was YES. [2021-03-26 10:35:22,268 INFO L84 FinitePrefix]: Finished finitePrefix Result has 858 conditions, 223 events. 72/223 cut-off events. For 1153/1237 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1297 event pairs, 16 based on Foata normal form. 3/208 useless extension candidates. Maximal degree in co-relation 836. Up to 94 conditions per place. [2021-03-26 10:35:22,270 INFO L142 LiptonReduction]: Number of co-enabled transitions 334 [2021-03-26 10:35:22,282 INFO L154 LiptonReduction]: Checked pairs total: 119 [2021-03-26 10:35:22,282 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:22,282 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-03-26 10:35:22,282 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 41 transitions, 297 flow [2021-03-26 10:35:22,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 126.8) internal successors, (634), 5 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:22,283 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:22,283 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:22,283 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 10:35:22,283 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:22,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:22,283 INFO L82 PathProgramCache]: Analyzing trace with hash 2016943268, now seen corresponding path program 1 times [2021-03-26 10:35:22,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:22,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045904791] [2021-03-26 10:35:22,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:22,360 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 10:35:22,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 10:35:22,391 INFO L142 QuantifierPusher]: treesize reduction 11, result has 88.3 percent of original size [2021-03-26 10:35:22,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-03-26 10:35:22,470 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-03-26 10:35:22,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 10:35:22,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:22,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:35:22,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:22,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045904791] [2021-03-26 10:35:22,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:22,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:35:22,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133395608] [2021-03-26 10:35:22,490 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:35:22,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:22,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:35:22,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:35:22,491 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 172 [2021-03-26 10:35:22,492 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 41 transitions, 297 flow. Second operand has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:22,492 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:22,492 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 172 [2021-03-26 10:35:22,492 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:22,598 INFO L129 PetriNetUnfolder]: 130/293 cut-off events. [2021-03-26 10:35:22,598 INFO L130 PetriNetUnfolder]: For 1365/1442 co-relation queries the response was YES. [2021-03-26 10:35:22,599 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1300 conditions, 293 events. 130/293 cut-off events. For 1365/1442 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1439 event pairs, 32 based on Foata normal form. 20/306 useless extension candidates. Maximal degree in co-relation 1276. Up to 208 conditions per place. [2021-03-26 10:35:22,600 INFO L132 encePairwiseOnDemand]: 164/172 looper letters, 28 selfloop transitions, 14 changer transitions 0/57 dead transitions. [2021-03-26 10:35:22,601 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 57 transitions, 494 flow [2021-03-26 10:35:22,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:35:22,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:35:22,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 632 transitions. [2021-03-26 10:35:22,604 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7348837209302326 [2021-03-26 10:35:22,604 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 632 transitions. [2021-03-26 10:35:22,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 632 transitions. [2021-03-26 10:35:22,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:22,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 632 transitions. [2021-03-26 10:35:22,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 126.4) internal successors, (632), 5 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:22,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:22,607 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:22,607 INFO L185 Difference]: Start difference. First operand has 51 places, 41 transitions, 297 flow. Second operand 5 states and 632 transitions. [2021-03-26 10:35:22,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 57 transitions, 494 flow [2021-03-26 10:35:22,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 57 transitions, 482 flow, removed 6 selfloop flow, removed 0 redundant places. [2021-03-26 10:35:22,612 INFO L241 Difference]: Finished difference. Result has 58 places, 54 transitions, 455 flow [2021-03-26 10:35:22,613 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=455, PETRI_PLACES=58, PETRI_TRANSITIONS=54} [2021-03-26 10:35:22,613 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 12 predicate places. [2021-03-26 10:35:22,613 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:22,613 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 54 transitions, 455 flow [2021-03-26 10:35:22,614 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 54 transitions, 455 flow [2021-03-26 10:35:22,614 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 54 transitions, 455 flow [2021-03-26 10:35:22,648 INFO L129 PetriNetUnfolder]: 109/280 cut-off events. [2021-03-26 10:35:22,648 INFO L130 PetriNetUnfolder]: For 1657/1751 co-relation queries the response was YES. [2021-03-26 10:35:22,650 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1212 conditions, 280 events. 109/280 cut-off events. For 1657/1751 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1560 event pairs, 23 based on Foata normal form. 7/271 useless extension candidates. Maximal degree in co-relation 1185. Up to 117 conditions per place. [2021-03-26 10:35:22,652 INFO L142 LiptonReduction]: Number of co-enabled transitions 422 [2021-03-26 10:35:22,665 INFO L154 LiptonReduction]: Checked pairs total: 288 [2021-03-26 10:35:22,665 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:22,665 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 52 [2021-03-26 10:35:22,666 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 54 transitions, 455 flow [2021-03-26 10:35:22,666 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:22,666 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:22,666 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:22,666 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 10:35:22,666 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:22,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:22,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1005713016, now seen corresponding path program 2 times [2021-03-26 10:35:22,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:22,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623626989] [2021-03-26 10:35:22,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:22,739 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-03-26 10:35:22,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 10:35:22,777 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-26 10:35:22,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 10:35:22,805 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 10:35:22,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 10:35:22,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:22,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:35:22,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:22,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623626989] [2021-03-26 10:35:22,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:22,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:35:22,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897858189] [2021-03-26 10:35:22,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:35:22,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:22,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:35:22,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:35:22,844 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 172 [2021-03-26 10:35:22,845 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 54 transitions, 455 flow. Second operand has 6 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:22,845 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:22,845 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 172 [2021-03-26 10:35:22,845 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:22,959 INFO L129 PetriNetUnfolder]: 126/290 cut-off events. [2021-03-26 10:35:22,960 INFO L130 PetriNetUnfolder]: For 1693/1848 co-relation queries the response was YES. [2021-03-26 10:35:22,961 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1463 conditions, 290 events. 126/290 cut-off events. For 1693/1848 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1461 event pairs, 34 based on Foata normal form. 36/319 useless extension candidates. Maximal degree in co-relation 1434. Up to 203 conditions per place. [2021-03-26 10:35:22,963 INFO L132 encePairwiseOnDemand]: 167/172 looper letters, 28 selfloop transitions, 15 changer transitions 0/58 dead transitions. [2021-03-26 10:35:22,963 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 58 transitions, 569 flow [2021-03-26 10:35:22,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:35:22,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:35:22,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 509 transitions. [2021-03-26 10:35:22,965 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7398255813953488 [2021-03-26 10:35:22,965 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 509 transitions. [2021-03-26 10:35:22,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 509 transitions. [2021-03-26 10:35:22,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:22,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 509 transitions. [2021-03-26 10:35:22,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 127.25) internal successors, (509), 4 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:22,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:22,969 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:22,969 INFO L185 Difference]: Start difference. First operand has 58 places, 54 transitions, 455 flow. Second operand 4 states and 509 transitions. [2021-03-26 10:35:22,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 58 transitions, 569 flow [2021-03-26 10:35:22,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 58 transitions, 557 flow, removed 6 selfloop flow, removed 0 redundant places. [2021-03-26 10:35:22,974 INFO L241 Difference]: Finished difference. Result has 62 places, 56 transitions, 506 flow [2021-03-26 10:35:22,975 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=443, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=506, PETRI_PLACES=62, PETRI_TRANSITIONS=56} [2021-03-26 10:35:22,975 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 16 predicate places. [2021-03-26 10:35:22,975 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:22,975 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 56 transitions, 506 flow [2021-03-26 10:35:22,975 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 56 transitions, 506 flow [2021-03-26 10:35:22,976 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 56 transitions, 506 flow [2021-03-26 10:35:23,012 INFO L129 PetriNetUnfolder]: 102/265 cut-off events. [2021-03-26 10:35:23,012 INFO L130 PetriNetUnfolder]: For 1952/2053 co-relation queries the response was YES. [2021-03-26 10:35:23,013 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1237 conditions, 265 events. 102/265 cut-off events. For 1952/2053 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1496 event pairs, 14 based on Foata normal form. 11/259 useless extension candidates. Maximal degree in co-relation 1207. Up to 116 conditions per place. [2021-03-26 10:35:23,016 INFO L142 LiptonReduction]: Number of co-enabled transitions 424 [2021-03-26 10:35:23,028 INFO L154 LiptonReduction]: Checked pairs total: 418 [2021-03-26 10:35:23,028 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:23,028 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 53 [2021-03-26 10:35:23,031 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 56 transitions, 506 flow [2021-03-26 10:35:23,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:23,032 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:23,032 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:23,032 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 10:35:23,032 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:23,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:23,032 INFO L82 PathProgramCache]: Analyzing trace with hash -480016641, now seen corresponding path program 1 times [2021-03-26 10:35:23,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:23,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665367105] [2021-03-26 10:35:23,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:23,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:23,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:23,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:35:23,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:23,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:23,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:23,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:23,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:23,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665367105] [2021-03-26 10:35:23,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:23,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:35:23,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726341334] [2021-03-26 10:35:23,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:35:23,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:23,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:35:23,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:35:23,094 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 172 [2021-03-26 10:35:23,094 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 56 transitions, 506 flow. Second operand has 4 states, 4 states have (on average 145.25) internal successors, (581), 4 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:23,094 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:23,094 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 172 [2021-03-26 10:35:23,094 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:23,165 INFO L129 PetriNetUnfolder]: 160/381 cut-off events. [2021-03-26 10:35:23,165 INFO L130 PetriNetUnfolder]: For 3615/3796 co-relation queries the response was YES. [2021-03-26 10:35:23,167 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1761 conditions, 381 events. 160/381 cut-off events. For 3615/3796 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 2237 event pairs, 49 based on Foata normal form. 47/396 useless extension candidates. Maximal degree in co-relation 1729. Up to 183 conditions per place. [2021-03-26 10:35:23,169 INFO L132 encePairwiseOnDemand]: 168/172 looper letters, 4 selfloop transitions, 3 changer transitions 2/58 dead transitions. [2021-03-26 10:35:23,169 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 58 transitions, 532 flow [2021-03-26 10:35:23,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:35:23,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:35:23,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 729 transitions. [2021-03-26 10:35:23,172 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8476744186046512 [2021-03-26 10:35:23,172 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 729 transitions. [2021-03-26 10:35:23,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 729 transitions. [2021-03-26 10:35:23,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:23,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 729 transitions. [2021-03-26 10:35:23,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 145.8) internal successors, (729), 5 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:23,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:23,175 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:23,176 INFO L185 Difference]: Start difference. First operand has 62 places, 56 transitions, 506 flow. Second operand 5 states and 729 transitions. [2021-03-26 10:35:23,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 58 transitions, 532 flow [2021-03-26 10:35:23,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 58 transitions, 507 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-03-26 10:35:23,181 INFO L241 Difference]: Finished difference. Result has 66 places, 56 transitions, 494 flow [2021-03-26 10:35:23,181 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=494, PETRI_PLACES=66, PETRI_TRANSITIONS=56} [2021-03-26 10:35:23,181 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 20 predicate places. [2021-03-26 10:35:23,181 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:23,181 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 56 transitions, 494 flow [2021-03-26 10:35:23,182 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 56 transitions, 494 flow [2021-03-26 10:35:23,182 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 56 transitions, 494 flow [2021-03-26 10:35:23,218 INFO L129 PetriNetUnfolder]: 110/292 cut-off events. [2021-03-26 10:35:23,218 INFO L130 PetriNetUnfolder]: For 1887/1988 co-relation queries the response was YES. [2021-03-26 10:35:23,220 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1336 conditions, 292 events. 110/292 cut-off events. For 1887/1988 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1704 event pairs, 10 based on Foata normal form. 16/285 useless extension candidates. Maximal degree in co-relation 1305. Up to 117 conditions per place. [2021-03-26 10:35:23,223 INFO L142 LiptonReduction]: Number of co-enabled transitions 400 [2021-03-26 10:35:23,316 INFO L154 LiptonReduction]: Checked pairs total: 488 [2021-03-26 10:35:23,316 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 10:35:23,316 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 135 [2021-03-26 10:35:23,317 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 56 transitions, 506 flow [2021-03-26 10:35:23,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 145.25) internal successors, (581), 4 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:23,317 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:23,317 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:23,317 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-26 10:35:23,317 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:23,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:23,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1083476167, now seen corresponding path program 2 times [2021-03-26 10:35:23,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:23,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857137754] [2021-03-26 10:35:23,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:23,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:23,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:23,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:23,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:23,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:23,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:35:23,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:23,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857137754] [2021-03-26 10:35:23,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:23,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:35:23,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31361120] [2021-03-26 10:35:23,394 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:35:23,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:23,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:35:23,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:35:23,396 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 175 [2021-03-26 10:35:23,396 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 56 transitions, 506 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 10:35:23,396 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:23,396 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 175 [2021-03-26 10:35:23,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:23,500 INFO L129 PetriNetUnfolder]: 253/577 cut-off events. [2021-03-26 10:35:23,501 INFO L130 PetriNetUnfolder]: For 2700/2881 co-relation queries the response was YES. [2021-03-26 10:35:23,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2001 conditions, 577 events. 253/577 cut-off events. For 2700/2881 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 3813 event pairs, 89 based on Foata normal form. 111/587 useless extension candidates. Maximal degree in co-relation 1968. Up to 333 conditions per place. [2021-03-26 10:35:23,506 INFO L132 encePairwiseOnDemand]: 169/175 looper letters, 11 selfloop transitions, 8 changer transitions 1/60 dead transitions. [2021-03-26 10:35:23,506 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 60 transitions, 492 flow [2021-03-26 10:35:23,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:35:23,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:35:23,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 725 transitions. [2021-03-26 10:35:23,509 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8285714285714286 [2021-03-26 10:35:23,509 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 725 transitions. [2021-03-26 10:35:23,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 725 transitions. [2021-03-26 10:35:23,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:23,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 725 transitions. [2021-03-26 10:35:23,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:23,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:23,513 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:23,513 INFO L185 Difference]: Start difference. First operand has 64 places, 56 transitions, 506 flow. Second operand 5 states and 725 transitions. [2021-03-26 10:35:23,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 60 transitions, 492 flow [2021-03-26 10:35:23,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 60 transitions, 472 flow, removed 1 selfloop flow, removed 5 redundant places. [2021-03-26 10:35:23,567 INFO L241 Difference]: Finished difference. Result has 66 places, 55 transitions, 468 flow [2021-03-26 10:35:23,567 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=468, PETRI_PLACES=66, PETRI_TRANSITIONS=55} [2021-03-26 10:35:23,568 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 20 predicate places. [2021-03-26 10:35:23,568 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:23,568 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 55 transitions, 468 flow [2021-03-26 10:35:23,568 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 55 transitions, 468 flow [2021-03-26 10:35:23,569 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 468 flow [2021-03-26 10:35:23,634 INFO L129 PetriNetUnfolder]: 213/498 cut-off events. [2021-03-26 10:35:23,635 INFO L130 PetriNetUnfolder]: For 2364/2477 co-relation queries the response was YES. [2021-03-26 10:35:23,638 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2078 conditions, 498 events. 213/498 cut-off events. For 2364/2477 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3105 event pairs, 66 based on Foata normal form. 41/506 useless extension candidates. Maximal degree in co-relation 2045. Up to 253 conditions per place. [2021-03-26 10:35:23,643 INFO L142 LiptonReduction]: Number of co-enabled transitions 488 [2021-03-26 10:35:24,324 WARN L205 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 180 [2021-03-26 10:35:24,548 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-03-26 10:35:25,787 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 334 DAG size of output: 256 [2021-03-26 10:35:26,279 WARN L205 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-03-26 10:35:26,292 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-26 10:35:26,292 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:35:26,292 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2724 [2021-03-26 10:35:26,293 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 55 transitions, 488 flow [2021-03-26 10:35:26,293 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 10:35:26,293 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:26,293 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:26,294 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-26 10:35:26,294 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:26,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:26,294 INFO L82 PathProgramCache]: Analyzing trace with hash -564309333, now seen corresponding path program 1 times [2021-03-26 10:35:26,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:26,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346130716] [2021-03-26 10:35:26,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:26,340 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-03-26 10:35:26,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 10:35:26,362 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-26 10:35:26,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 10:35:26,390 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size [2021-03-26 10:35:26,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 10:35:26,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:26,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 10:35:26,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:26,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 10:35:26,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:26,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346130716] [2021-03-26 10:35:26,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:26,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:35:26,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373434581] [2021-03-26 10:35:26,452 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 10:35:26,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:26,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 10:35:26,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-26 10:35:26,454 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 176 [2021-03-26 10:35:26,455 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 55 transitions, 488 flow. Second operand has 7 states, 7 states have (on average 124.85714285714286) internal successors, (874), 7 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:26,455 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:26,455 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 176 [2021-03-26 10:35:26,455 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:26,614 INFO L129 PetriNetUnfolder]: 231/531 cut-off events. [2021-03-26 10:35:26,614 INFO L130 PetriNetUnfolder]: For 3133/3366 co-relation queries the response was YES. [2021-03-26 10:35:26,617 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2521 conditions, 531 events. 231/531 cut-off events. For 3133/3366 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 3356 event pairs, 73 based on Foata normal form. 56/548 useless extension candidates. Maximal degree in co-relation 2486. Up to 241 conditions per place. [2021-03-26 10:35:26,619 INFO L132 encePairwiseOnDemand]: 168/176 looper letters, 23 selfloop transitions, 12 changer transitions 4/61 dead transitions. [2021-03-26 10:35:26,619 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 61 transitions, 607 flow [2021-03-26 10:35:26,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:35:26,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:35:26,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 767 transitions. [2021-03-26 10:35:26,622 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7263257575757576 [2021-03-26 10:35:26,622 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 767 transitions. [2021-03-26 10:35:26,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 767 transitions. [2021-03-26 10:35:26,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:26,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 767 transitions. [2021-03-26 10:35:26,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 127.83333333333333) internal successors, (767), 6 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:26,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:26,626 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:26,626 INFO L185 Difference]: Start difference. First operand has 66 places, 55 transitions, 488 flow. Second operand 6 states and 767 transitions. [2021-03-26 10:35:26,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 61 transitions, 607 flow [2021-03-26 10:35:26,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 61 transitions, 583 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-03-26 10:35:26,634 INFO L241 Difference]: Finished difference. Result has 69 places, 54 transitions, 475 flow [2021-03-26 10:35:26,634 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=475, PETRI_PLACES=69, PETRI_TRANSITIONS=54} [2021-03-26 10:35:26,634 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 23 predicate places. [2021-03-26 10:35:26,634 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:26,635 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 54 transitions, 475 flow [2021-03-26 10:35:26,635 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 54 transitions, 475 flow [2021-03-26 10:35:26,635 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 54 transitions, 475 flow [2021-03-26 10:35:26,688 INFO L129 PetriNetUnfolder]: 195/478 cut-off events. [2021-03-26 10:35:26,688 INFO L130 PetriNetUnfolder]: For 2493/2638 co-relation queries the response was YES. [2021-03-26 10:35:26,691 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2016 conditions, 478 events. 195/478 cut-off events. For 2493/2638 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 3096 event pairs, 65 based on Foata normal form. 44/486 useless extension candidates. Maximal degree in co-relation 1982. Up to 232 conditions per place. [2021-03-26 10:35:26,695 INFO L142 LiptonReduction]: Number of co-enabled transitions 480 [2021-03-26 10:35:26,706 INFO L154 LiptonReduction]: Checked pairs total: 34 [2021-03-26 10:35:26,706 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:35:26,706 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 72 [2021-03-26 10:35:26,707 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 53 transitions, 469 flow [2021-03-26 10:35:26,707 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 124.85714285714286) internal successors, (874), 7 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:26,708 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:26,708 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:26,708 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-26 10:35:26,708 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:26,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:26,708 INFO L82 PathProgramCache]: Analyzing trace with hash -681798076, now seen corresponding path program 1 times [2021-03-26 10:35:26,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:26,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629638869] [2021-03-26 10:35:26,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:26,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:26,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:26,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:35:26,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:26,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:35:26,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:26,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 10:35:26,810 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.5 percent of original size [2021-03-26 10:35:26,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 10:35:26,833 INFO L142 QuantifierPusher]: treesize reduction 4, result has 86.2 percent of original size [2021-03-26 10:35:26,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 10:35:26,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:26,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629638869] [2021-03-26 10:35:26,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:26,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:35:26,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136301241] [2021-03-26 10:35:26,853 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 10:35:26,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:26,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 10:35:26,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-26 10:35:26,855 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 176 [2021-03-26 10:35:26,856 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 53 transitions, 469 flow. Second operand has 7 states, 7 states have (on average 125.85714285714286) internal successors, (881), 7 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:26,856 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:26,856 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 176 [2021-03-26 10:35:26,856 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:27,037 INFO L129 PetriNetUnfolder]: 205/465 cut-off events. [2021-03-26 10:35:27,037 INFO L130 PetriNetUnfolder]: For 3116/3220 co-relation queries the response was YES. [2021-03-26 10:35:27,040 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2362 conditions, 465 events. 205/465 cut-off events. For 3116/3220 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2684 event pairs, 78 based on Foata normal form. 18/460 useless extension candidates. Maximal degree in co-relation 2326. Up to 233 conditions per place. [2021-03-26 10:35:27,043 INFO L132 encePairwiseOnDemand]: 168/176 looper letters, 23 selfloop transitions, 11 changer transitions 3/55 dead transitions. [2021-03-26 10:35:27,043 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 55 transitions, 577 flow [2021-03-26 10:35:27,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:35:27,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:35:27,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 772 transitions. [2021-03-26 10:35:27,046 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7310606060606061 [2021-03-26 10:35:27,046 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 772 transitions. [2021-03-26 10:35:27,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 772 transitions. [2021-03-26 10:35:27,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:27,047 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 772 transitions. [2021-03-26 10:35:27,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 128.66666666666666) internal successors, (772), 6 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:27,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:27,051 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:27,051 INFO L185 Difference]: Start difference. First operand has 69 places, 53 transitions, 469 flow. Second operand 6 states and 772 transitions. [2021-03-26 10:35:27,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 55 transitions, 577 flow [2021-03-26 10:35:27,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 55 transitions, 528 flow, removed 13 selfloop flow, removed 5 redundant places. [2021-03-26 10:35:27,057 INFO L241 Difference]: Finished difference. Result has 68 places, 50 transitions, 439 flow [2021-03-26 10:35:27,058 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=439, PETRI_PLACES=68, PETRI_TRANSITIONS=50} [2021-03-26 10:35:27,058 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 22 predicate places. [2021-03-26 10:35:27,058 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:27,058 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 50 transitions, 439 flow [2021-03-26 10:35:27,059 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 50 transitions, 439 flow [2021-03-26 10:35:27,059 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 50 transitions, 439 flow [2021-03-26 10:35:27,106 INFO L129 PetriNetUnfolder]: 168/394 cut-off events. [2021-03-26 10:35:27,107 INFO L130 PetriNetUnfolder]: For 2728/2838 co-relation queries the response was YES. [2021-03-26 10:35:27,109 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1719 conditions, 394 events. 168/394 cut-off events. For 2728/2838 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2257 event pairs, 57 based on Foata normal form. 13/379 useless extension candidates. Maximal degree in co-relation 1686. Up to 180 conditions per place. [2021-03-26 10:35:27,113 INFO L142 LiptonReduction]: Number of co-enabled transitions 342 [2021-03-26 10:35:27,326 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-03-26 10:35:27,793 WARN L205 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 89 [2021-03-26 10:35:27,911 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-26 10:35:27,921 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-26 10:35:27,921 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:35:27,921 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 863 [2021-03-26 10:35:27,922 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 50 transitions, 449 flow [2021-03-26 10:35:27,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 125.85714285714286) internal successors, (881), 7 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:27,922 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:27,922 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:27,922 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-26 10:35:27,922 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:27,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:27,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1231739418, now seen corresponding path program 1 times [2021-03-26 10:35:27,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:27,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574344210] [2021-03-26 10:35:27,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:27,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:27,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:27,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:27,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:27,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:27,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:27,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:27,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:35:27,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:27,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574344210] [2021-03-26 10:35:27,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:27,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:35:27,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434404785] [2021-03-26 10:35:27,981 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:35:27,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:27,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:35:27,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:35:27,982 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 177 [2021-03-26 10:35:27,983 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 50 transitions, 449 flow. Second operand has 5 states, 5 states have (on average 142.8) internal successors, (714), 5 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:27,983 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:27,983 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 177 [2021-03-26 10:35:27,983 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:28,071 INFO L129 PetriNetUnfolder]: 132/342 cut-off events. [2021-03-26 10:35:28,071 INFO L130 PetriNetUnfolder]: For 1217/1399 co-relation queries the response was YES. [2021-03-26 10:35:28,074 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1414 conditions, 342 events. 132/342 cut-off events. For 1217/1399 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 1990 event pairs, 12 based on Foata normal form. 88/395 useless extension candidates. Maximal degree in co-relation 1379. Up to 190 conditions per place. [2021-03-26 10:35:28,076 INFO L132 encePairwiseOnDemand]: 171/177 looper letters, 8 selfloop transitions, 11 changer transitions 3/62 dead transitions. [2021-03-26 10:35:28,076 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 62 transitions, 555 flow [2021-03-26 10:35:28,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:35:28,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:35:28,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 876 transitions. [2021-03-26 10:35:28,079 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8248587570621468 [2021-03-26 10:35:28,079 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 876 transitions. [2021-03-26 10:35:28,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 876 transitions. [2021-03-26 10:35:28,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:28,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 876 transitions. [2021-03-26 10:35:28,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 146.0) internal successors, (876), 6 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:28,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 177.0) internal successors, (1239), 7 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:28,083 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 177.0) internal successors, (1239), 7 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:28,083 INFO L185 Difference]: Start difference. First operand has 68 places, 50 transitions, 449 flow. Second operand 6 states and 876 transitions. [2021-03-26 10:35:28,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 62 transitions, 555 flow [2021-03-26 10:35:28,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 499 flow, removed 16 selfloop flow, removed 5 redundant places. [2021-03-26 10:35:28,090 INFO L241 Difference]: Finished difference. Result has 71 places, 57 transitions, 481 flow [2021-03-26 10:35:28,090 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=481, PETRI_PLACES=71, PETRI_TRANSITIONS=57} [2021-03-26 10:35:28,090 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 25 predicate places. [2021-03-26 10:35:28,090 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:28,090 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 57 transitions, 481 flow [2021-03-26 10:35:28,090 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 57 transitions, 481 flow [2021-03-26 10:35:28,091 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 57 transitions, 481 flow [2021-03-26 10:35:28,118 INFO L129 PetriNetUnfolder]: 75/246 cut-off events. [2021-03-26 10:35:28,119 INFO L130 PetriNetUnfolder]: For 1282/1370 co-relation queries the response was YES. [2021-03-26 10:35:28,120 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1184 conditions, 246 events. 75/246 cut-off events. For 1282/1370 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1402 event pairs, 12 based on Foata normal form. 9/249 useless extension candidates. Maximal degree in co-relation 1149. Up to 131 conditions per place. [2021-03-26 10:35:28,122 INFO L142 LiptonReduction]: Number of co-enabled transitions 370 [2021-03-26 10:35:28,133 INFO L154 LiptonReduction]: Checked pairs total: 18 [2021-03-26 10:35:28,133 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:35:28,133 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-03-26 10:35:28,134 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 56 transitions, 473 flow [2021-03-26 10:35:28,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 142.8) internal successors, (714), 5 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:28,134 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:28,134 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:28,135 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-26 10:35:28,135 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:28,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:28,135 INFO L82 PathProgramCache]: Analyzing trace with hash -669467786, now seen corresponding path program 1 times [2021-03-26 10:35:28,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:28,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591809514] [2021-03-26 10:35:28,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:28,204 INFO L142 QuantifierPusher]: treesize reduction 2, result has 97.3 percent of original size [2021-03-26 10:35:28,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-26 10:35:28,254 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 10:35:28,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 10:35:28,292 INFO L142 QuantifierPusher]: treesize reduction 11, result has 87.4 percent of original size [2021-03-26 10:35:28,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-26 10:35:28,337 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-03-26 10:35:28,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 10:35:28,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:28,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:35:28,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:28,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591809514] [2021-03-26 10:35:28,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:28,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:35:28,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429706208] [2021-03-26 10:35:28,381 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 10:35:28,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:28,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 10:35:28,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 10:35:28,382 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 177 [2021-03-26 10:35:28,383 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 56 transitions, 473 flow. Second operand has 7 states, 7 states have (on average 120.85714285714286) internal successors, (846), 7 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:28,383 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:28,383 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 177 [2021-03-26 10:35:28,383 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:28,530 INFO L129 PetriNetUnfolder]: 68/209 cut-off events. [2021-03-26 10:35:28,530 INFO L130 PetriNetUnfolder]: For 1325/1406 co-relation queries the response was YES. [2021-03-26 10:35:28,531 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1125 conditions, 209 events. 68/209 cut-off events. For 1325/1406 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1014 event pairs, 14 based on Foata normal form. 14/217 useless extension candidates. Maximal degree in co-relation 1088. Up to 96 conditions per place. [2021-03-26 10:35:28,532 INFO L132 encePairwiseOnDemand]: 169/177 looper letters, 21 selfloop transitions, 9 changer transitions 5/56 dead transitions. [2021-03-26 10:35:28,532 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 56 transitions, 546 flow [2021-03-26 10:35:28,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:35:28,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:35:28,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 618 transitions. [2021-03-26 10:35:28,535 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6983050847457627 [2021-03-26 10:35:28,535 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 618 transitions. [2021-03-26 10:35:28,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 618 transitions. [2021-03-26 10:35:28,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:28,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 618 transitions. [2021-03-26 10:35:28,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 123.6) internal successors, (618), 5 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:28,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:28,539 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:28,539 INFO L185 Difference]: Start difference. First operand has 71 places, 56 transitions, 473 flow. Second operand 5 states and 618 transitions. [2021-03-26 10:35:28,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 56 transitions, 546 flow [2021-03-26 10:35:28,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 56 transitions, 522 flow, removed 10 selfloop flow, removed 3 redundant places. [2021-03-26 10:35:28,544 INFO L241 Difference]: Finished difference. Result has 71 places, 51 transitions, 425 flow [2021-03-26 10:35:28,544 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=425, PETRI_PLACES=71, PETRI_TRANSITIONS=51} [2021-03-26 10:35:28,545 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 25 predicate places. [2021-03-26 10:35:28,545 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:28,545 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 51 transitions, 425 flow [2021-03-26 10:35:28,545 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 51 transitions, 425 flow [2021-03-26 10:35:28,546 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 51 transitions, 425 flow [2021-03-26 10:35:28,568 INFO L129 PetriNetUnfolder]: 61/192 cut-off events. [2021-03-26 10:35:28,568 INFO L130 PetriNetUnfolder]: For 1109/1138 co-relation queries the response was YES. [2021-03-26 10:35:28,569 INFO L84 FinitePrefix]: Finished finitePrefix Result has 890 conditions, 192 events. 61/192 cut-off events. For 1109/1138 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 900 event pairs, 12 based on Foata normal form. 4/191 useless extension candidates. Maximal degree in co-relation 855. Up to 57 conditions per place. [2021-03-26 10:35:28,571 INFO L142 LiptonReduction]: Number of co-enabled transitions 300 [2021-03-26 10:35:28,575 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:35:28,575 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:28,576 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-03-26 10:35:28,576 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 51 transitions, 425 flow [2021-03-26 10:35:28,576 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 120.85714285714286) internal successors, (846), 7 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:28,577 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:28,577 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:28,577 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-26 10:35:28,577 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:28,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:28,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1241521825, now seen corresponding path program 1 times [2021-03-26 10:35:28,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:28,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662520284] [2021-03-26 10:35:28,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:28,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:28,665 INFO L142 QuantifierPusher]: treesize reduction 2, result has 97.4 percent of original size [2021-03-26 10:35:28,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-03-26 10:35:28,712 INFO L142 QuantifierPusher]: treesize reduction 2, result has 97.5 percent of original size [2021-03-26 10:35:28,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 10:35:28,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:28,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 10:35:28,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:28,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 10:35:28,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:28,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 10:35:28,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:28,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:35:28,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:28,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662520284] [2021-03-26 10:35:28,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:28,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:35:28,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499044043] [2021-03-26 10:35:28,832 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 10:35:28,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:28,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 10:35:28,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-26 10:35:28,833 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 177 [2021-03-26 10:35:28,834 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 51 transitions, 425 flow. Second operand has 7 states, 7 states have (on average 124.0) internal successors, (868), 7 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:28,834 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:28,834 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 177 [2021-03-26 10:35:28,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:28,942 INFO L129 PetriNetUnfolder]: 67/205 cut-off events. [2021-03-26 10:35:28,942 INFO L130 PetriNetUnfolder]: For 1311/1381 co-relation queries the response was YES. [2021-03-26 10:35:28,944 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1047 conditions, 205 events. 67/205 cut-off events. For 1311/1381 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 982 event pairs, 14 based on Foata normal form. 10/209 useless extension candidates. Maximal degree in co-relation 1010. Up to 95 conditions per place. [2021-03-26 10:35:28,946 INFO L132 encePairwiseOnDemand]: 171/177 looper letters, 21 selfloop transitions, 7 changer transitions 5/54 dead transitions. [2021-03-26 10:35:28,946 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 54 transitions, 522 flow [2021-03-26 10:35:28,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:35:28,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:35:28,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 632 transitions. [2021-03-26 10:35:28,948 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7141242937853107 [2021-03-26 10:35:28,949 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 632 transitions. [2021-03-26 10:35:28,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 632 transitions. [2021-03-26 10:35:28,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:28,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 632 transitions. [2021-03-26 10:35:28,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 126.4) internal successors, (632), 5 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:28,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:28,964 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:28,965 INFO L185 Difference]: Start difference. First operand has 71 places, 51 transitions, 425 flow. Second operand 5 states and 632 transitions. [2021-03-26 10:35:28,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 54 transitions, 522 flow [2021-03-26 10:35:28,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 54 transitions, 504 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-26 10:35:28,970 INFO L241 Difference]: Finished difference. Result has 72 places, 49 transitions, 414 flow [2021-03-26 10:35:28,970 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=414, PETRI_PLACES=72, PETRI_TRANSITIONS=49} [2021-03-26 10:35:28,970 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 26 predicate places. [2021-03-26 10:35:28,970 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:28,970 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 49 transitions, 414 flow [2021-03-26 10:35:28,970 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 49 transitions, 414 flow [2021-03-26 10:35:28,971 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 49 transitions, 414 flow [2021-03-26 10:35:28,994 INFO L129 PetriNetUnfolder]: 61/189 cut-off events. [2021-03-26 10:35:28,994 INFO L130 PetriNetUnfolder]: For 1225/1256 co-relation queries the response was YES. [2021-03-26 10:35:28,996 INFO L84 FinitePrefix]: Finished finitePrefix Result has 899 conditions, 189 events. 61/189 cut-off events. For 1225/1256 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 873 event pairs, 12 based on Foata normal form. 4/188 useless extension candidates. Maximal degree in co-relation 863. Up to 57 conditions per place. [2021-03-26 10:35:28,997 INFO L142 LiptonReduction]: Number of co-enabled transitions 294 [2021-03-26 10:35:29,006 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:35:29,007 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:29,007 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-03-26 10:35:29,008 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 49 transitions, 414 flow [2021-03-26 10:35:29,008 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 124.0) internal successors, (868), 7 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:29,009 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:29,009 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:29,009 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-26 10:35:29,009 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:29,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:29,009 INFO L82 PathProgramCache]: Analyzing trace with hash 328160381, now seen corresponding path program 2 times [2021-03-26 10:35:29,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:29,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497046358] [2021-03-26 10:35:29,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:29,086 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-26 10:35:29,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 10:35:29,113 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 10:35:29,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 10:35:29,147 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-03-26 10:35:29,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 10:35:29,188 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size [2021-03-26 10:35:29,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 10:35:29,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:29,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:35:29,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:29,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:35:29,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:29,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497046358] [2021-03-26 10:35:29,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:29,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:35:29,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344985440] [2021-03-26 10:35:29,255 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 10:35:29,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:29,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 10:35:29,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-26 10:35:29,256 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 177 [2021-03-26 10:35:29,257 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 49 transitions, 414 flow. Second operand has 7 states, 7 states have (on average 124.0) internal successors, (868), 7 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:29,257 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:29,257 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 177 [2021-03-26 10:35:29,257 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:29,395 INFO L129 PetriNetUnfolder]: 66/200 cut-off events. [2021-03-26 10:35:29,395 INFO L130 PetriNetUnfolder]: For 1471/1542 co-relation queries the response was YES. [2021-03-26 10:35:29,397 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1047 conditions, 200 events. 66/200 cut-off events. For 1471/1542 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 934 event pairs, 14 based on Foata normal form. 18/212 useless extension candidates. Maximal degree in co-relation 1009. Up to 82 conditions per place. [2021-03-26 10:35:29,397 INFO L132 encePairwiseOnDemand]: 170/177 looper letters, 12 selfloop transitions, 16 changer transitions 3/52 dead transitions. [2021-03-26 10:35:29,398 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 52 transitions, 510 flow [2021-03-26 10:35:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:35:29,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:35:29,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 757 transitions. [2021-03-26 10:35:29,401 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7128060263653484 [2021-03-26 10:35:29,401 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 757 transitions. [2021-03-26 10:35:29,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 757 transitions. [2021-03-26 10:35:29,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:29,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 757 transitions. [2021-03-26 10:35:29,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 126.16666666666667) internal successors, (757), 6 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:29,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 177.0) internal successors, (1239), 7 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:29,405 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 177.0) internal successors, (1239), 7 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:29,405 INFO L185 Difference]: Start difference. First operand has 72 places, 49 transitions, 414 flow. Second operand 6 states and 757 transitions. [2021-03-26 10:35:29,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 52 transitions, 510 flow [2021-03-26 10:35:29,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 52 transitions, 488 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-03-26 10:35:29,411 INFO L241 Difference]: Finished difference. Result has 72 places, 49 transitions, 456 flow [2021-03-26 10:35:29,411 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=456, PETRI_PLACES=72, PETRI_TRANSITIONS=49} [2021-03-26 10:35:29,411 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 26 predicate places. [2021-03-26 10:35:29,411 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:29,411 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 49 transitions, 456 flow [2021-03-26 10:35:29,414 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 49 transitions, 456 flow [2021-03-26 10:35:29,414 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 49 transitions, 456 flow [2021-03-26 10:35:29,437 INFO L129 PetriNetUnfolder]: 59/181 cut-off events. [2021-03-26 10:35:29,437 INFO L130 PetriNetUnfolder]: For 1430/1469 co-relation queries the response was YES. [2021-03-26 10:35:29,438 INFO L84 FinitePrefix]: Finished finitePrefix Result has 929 conditions, 181 events. 59/181 cut-off events. For 1430/1469 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 838 event pairs, 7 based on Foata normal form. 3/178 useless extension candidates. Maximal degree in co-relation 894. Up to 54 conditions per place. [2021-03-26 10:35:29,439 INFO L142 LiptonReduction]: Number of co-enabled transitions 292 [2021-03-26 10:35:29,441 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:35:29,441 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:29,441 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-03-26 10:35:29,443 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 49 transitions, 456 flow [2021-03-26 10:35:29,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 124.0) internal successors, (868), 7 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:29,443 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:29,443 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:29,443 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-26 10:35:29,444 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:29,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:29,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1708838463, now seen corresponding path program 3 times [2021-03-26 10:35:29,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:29,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832740439] [2021-03-26 10:35:29,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:29,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:29,495 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-26 10:35:29,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 10:35:29,560 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 10:35:29,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 10:35:29,593 INFO L142 QuantifierPusher]: treesize reduction 11, result has 87.8 percent of original size [2021-03-26 10:35:29,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 10:35:29,633 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.3 percent of original size [2021-03-26 10:35:29,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-26 10:35:29,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:29,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:35:29,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:29,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:35:29,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:29,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832740439] [2021-03-26 10:35:29,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:29,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:35:29,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194991564] [2021-03-26 10:35:29,673 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 10:35:29,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:29,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 10:35:29,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-26 10:35:29,674 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 177 [2021-03-26 10:35:29,675 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 49 transitions, 456 flow. Second operand has 7 states, 7 states have (on average 124.0) internal successors, (868), 7 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:29,675 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:29,675 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 177 [2021-03-26 10:35:29,675 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:29,794 INFO L129 PetriNetUnfolder]: 65/197 cut-off events. [2021-03-26 10:35:29,794 INFO L130 PetriNetUnfolder]: For 1702/1772 co-relation queries the response was YES. [2021-03-26 10:35:29,795 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1093 conditions, 197 events. 65/197 cut-off events. For 1702/1772 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 920 event pairs, 14 based on Foata normal form. 10/201 useless extension candidates. Maximal degree in co-relation 1056. Up to 92 conditions per place. [2021-03-26 10:35:29,796 INFO L132 encePairwiseOnDemand]: 172/177 looper letters, 21 selfloop transitions, 3 changer transitions 6/51 dead transitions. [2021-03-26 10:35:29,796 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 51 transitions, 542 flow [2021-03-26 10:35:29,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:35:29,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:35:29,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 631 transitions. [2021-03-26 10:35:29,799 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7129943502824859 [2021-03-26 10:35:29,799 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 631 transitions. [2021-03-26 10:35:29,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 631 transitions. [2021-03-26 10:35:29,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:29,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 631 transitions. [2021-03-26 10:35:29,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 126.2) internal successors, (631), 5 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:29,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:29,802 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:29,803 INFO L185 Difference]: Start difference. First operand has 71 places, 49 transitions, 456 flow. Second operand 5 states and 631 transitions. [2021-03-26 10:35:29,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 51 transitions, 542 flow [2021-03-26 10:35:29,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 51 transitions, 485 flow, removed 17 selfloop flow, removed 7 redundant places. [2021-03-26 10:35:29,809 INFO L241 Difference]: Finished difference. Result has 69 places, 45 transitions, 377 flow [2021-03-26 10:35:29,809 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=377, PETRI_PLACES=69, PETRI_TRANSITIONS=45} [2021-03-26 10:35:29,809 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 23 predicate places. [2021-03-26 10:35:29,809 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:29,809 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 45 transitions, 377 flow [2021-03-26 10:35:29,809 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 45 transitions, 377 flow [2021-03-26 10:35:29,810 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 45 transitions, 377 flow [2021-03-26 10:35:29,830 INFO L129 PetriNetUnfolder]: 58/178 cut-off events. [2021-03-26 10:35:29,830 INFO L130 PetriNetUnfolder]: For 867/886 co-relation queries the response was YES. [2021-03-26 10:35:29,831 INFO L84 FinitePrefix]: Finished finitePrefix Result has 816 conditions, 178 events. 58/178 cut-off events. For 867/886 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 787 event pairs, 9 based on Foata normal form. 3/174 useless extension candidates. Maximal degree in co-relation 783. Up to 55 conditions per place. [2021-03-26 10:35:29,832 INFO L142 LiptonReduction]: Number of co-enabled transitions 278 [2021-03-26 10:35:29,834 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:35:29,834 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:29,834 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-03-26 10:35:29,834 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 45 transitions, 377 flow [2021-03-26 10:35:29,835 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 124.0) internal successors, (868), 7 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:29,835 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:29,835 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 10:35:29,835 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-26 10:35:29,836 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:29,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:29,836 INFO L82 PathProgramCache]: Analyzing trace with hash 545593369, now seen corresponding path program 1 times [2021-03-26 10:35:29,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:29,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206971496] [2021-03-26 10:35:29,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:29,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:29,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:29,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:29,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:29,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:29,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:29,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:29,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:29,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:29,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:35:29,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:29,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206971496] [2021-03-26 10:35:29,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:29,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:35:29,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794770983] [2021-03-26 10:35:29,914 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:35:29,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:29,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:35:29,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:35:29,915 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 177 [2021-03-26 10:35:29,916 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 45 transitions, 377 flow. Second operand has 6 states, 6 states have (on average 142.83333333333334) internal successors, (857), 6 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:29,916 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:29,916 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 177 [2021-03-26 10:35:29,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:29,986 INFO L129 PetriNetUnfolder]: 92/225 cut-off events. [2021-03-26 10:35:29,986 INFO L130 PetriNetUnfolder]: For 573/712 co-relation queries the response was YES. [2021-03-26 10:35:29,988 INFO L84 FinitePrefix]: Finished finitePrefix Result has 954 conditions, 225 events. 92/225 cut-off events. For 573/712 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1053 event pairs, 4 based on Foata normal form. 42/237 useless extension candidates. Maximal degree in co-relation 919. Up to 73 conditions per place. [2021-03-26 10:35:29,988 INFO L132 encePairwiseOnDemand]: 171/177 looper letters, 5 selfloop transitions, 11 changer transitions 10/52 dead transitions. [2021-03-26 10:35:29,988 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 52 transitions, 453 flow [2021-03-26 10:35:29,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:35:29,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:35:29,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1016 transitions. [2021-03-26 10:35:29,991 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8200161420500404 [2021-03-26 10:35:29,991 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1016 transitions. [2021-03-26 10:35:29,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1016 transitions. [2021-03-26 10:35:29,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:29,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1016 transitions. [2021-03-26 10:35:29,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 145.14285714285714) internal successors, (1016), 7 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:29,996 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 10:35:29,996 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 10:35:29,996 INFO L185 Difference]: Start difference. First operand has 64 places, 45 transitions, 377 flow. Second operand 7 states and 1016 transitions. [2021-03-26 10:35:29,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 52 transitions, 453 flow [2021-03-26 10:35:29,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 52 transitions, 398 flow, removed 22 selfloop flow, removed 7 redundant places. [2021-03-26 10:35:29,999 INFO L241 Difference]: Finished difference. Result has 66 places, 40 transitions, 325 flow [2021-03-26 10:35:29,999 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=325, PETRI_PLACES=66, PETRI_TRANSITIONS=40} [2021-03-26 10:35:30,000 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 20 predicate places. [2021-03-26 10:35:30,000 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:30,000 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 40 transitions, 325 flow [2021-03-26 10:35:30,000 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 40 transitions, 325 flow [2021-03-26 10:35:30,000 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 40 transitions, 325 flow [2021-03-26 10:35:30,008 INFO L129 PetriNetUnfolder]: 17/63 cut-off events. [2021-03-26 10:35:30,008 INFO L130 PetriNetUnfolder]: For 165/178 co-relation queries the response was YES. [2021-03-26 10:35:30,008 INFO L84 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 63 events. 17/63 cut-off events. For 165/178 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 162 event pairs, 0 based on Foata normal form. 2/63 useless extension candidates. Maximal degree in co-relation 267. Up to 19 conditions per place. [2021-03-26 10:35:30,009 INFO L142 LiptonReduction]: Number of co-enabled transitions 192 [2021-03-26 10:35:30,216 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-26 10:35:30,654 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2021-03-26 10:35:30,811 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-26 10:35:31,398 WARN L205 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 180 [2021-03-26 10:35:31,602 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-03-26 10:35:33,025 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 334 DAG size of output: 256 [2021-03-26 10:35:33,510 WARN L205 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-03-26 10:35:33,665 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-03-26 10:35:33,897 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 85 [2021-03-26 10:35:34,184 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-03-26 10:35:34,414 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-03-26 10:35:34,942 WARN L205 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2021-03-26 10:35:35,441 WARN L205 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2021-03-26 10:35:35,557 INFO L154 LiptonReduction]: Checked pairs total: 42 [2021-03-26 10:35:35,557 INFO L156 LiptonReduction]: Total number of compositions: 8 [2021-03-26 10:35:35,557 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5557 [2021-03-26 10:35:35,558 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 36 transitions, 324 flow [2021-03-26 10:35:35,558 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 142.83333333333334) internal successors, (857), 6 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:35,558 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:35,558 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:35,558 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-26 10:35:35,558 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:35,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:35,559 INFO L82 PathProgramCache]: Analyzing trace with hash 883362613, now seen corresponding path program 1 times [2021-03-26 10:35:35,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:35,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233687837] [2021-03-26 10:35:35,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:35,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:35,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:35,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:35:35,625 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.7 percent of original size [2021-03-26 10:35:35,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 10:35:35,642 INFO L142 QuantifierPusher]: treesize reduction 37, result has 51.3 percent of original size [2021-03-26 10:35:35,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 10:35:35,673 INFO L142 QuantifierPusher]: treesize reduction 37, result has 53.8 percent of original size [2021-03-26 10:35:35,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-26 10:35:35,707 INFO L142 QuantifierPusher]: treesize reduction 5, result has 86.1 percent of original size [2021-03-26 10:35:35,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 10:35:35,716 INFO L142 QuantifierPusher]: treesize reduction 26, result has 61.2 percent of original size [2021-03-26 10:35:35,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 10:35:35,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:35,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 10:35:35,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:35,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233687837] [2021-03-26 10:35:35,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:35,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 10:35:35,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829227439] [2021-03-26 10:35:35,760 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 10:35:35,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:35,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 10:35:35,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-26 10:35:35,762 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 184 [2021-03-26 10:35:35,762 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 36 transitions, 324 flow. Second operand has 8 states, 8 states have (on average 123.0) internal successors, (984), 8 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:35,762 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:35,762 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 184 [2021-03-26 10:35:35,762 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:35,898 INFO L129 PetriNetUnfolder]: 28/92 cut-off events. [2021-03-26 10:35:35,898 INFO L130 PetriNetUnfolder]: For 505/553 co-relation queries the response was YES. [2021-03-26 10:35:35,899 INFO L84 FinitePrefix]: Finished finitePrefix Result has 466 conditions, 92 events. 28/92 cut-off events. For 505/553 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 336 event pairs, 1 based on Foata normal form. 23/108 useless extension candidates. Maximal degree in co-relation 433. Up to 36 conditions per place. [2021-03-26 10:35:35,899 INFO L132 encePairwiseOnDemand]: 177/184 looper letters, 15 selfloop transitions, 7 changer transitions 4/43 dead transitions. [2021-03-26 10:35:35,899 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 43 transitions, 448 flow [2021-03-26 10:35:35,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:35:35,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:35:35,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 751 transitions. [2021-03-26 10:35:35,903 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6802536231884058 [2021-03-26 10:35:35,903 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 751 transitions. [2021-03-26 10:35:35,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 751 transitions. [2021-03-26 10:35:35,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:35,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 751 transitions. [2021-03-26 10:35:35,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 125.16666666666667) internal successors, (751), 6 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:35,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 184.0) internal successors, (1288), 7 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:35,907 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 184.0) internal successors, (1288), 7 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:35,907 INFO L185 Difference]: Start difference. First operand has 61 places, 36 transitions, 324 flow. Second operand 6 states and 751 transitions. [2021-03-26 10:35:35,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 43 transitions, 448 flow [2021-03-26 10:35:35,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 43 transitions, 381 flow, removed 18 selfloop flow, removed 11 redundant places. [2021-03-26 10:35:35,910 INFO L241 Difference]: Finished difference. Result has 58 places, 37 transitions, 303 flow [2021-03-26 10:35:35,910 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=303, PETRI_PLACES=58, PETRI_TRANSITIONS=37} [2021-03-26 10:35:35,910 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 12 predicate places. [2021-03-26 10:35:35,910 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:35,911 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 37 transitions, 303 flow [2021-03-26 10:35:35,911 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 37 transitions, 303 flow [2021-03-26 10:35:35,911 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 37 transitions, 303 flow [2021-03-26 10:35:35,918 INFO L129 PetriNetUnfolder]: 20/67 cut-off events. [2021-03-26 10:35:35,918 INFO L130 PetriNetUnfolder]: For 192/196 co-relation queries the response was YES. [2021-03-26 10:35:35,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 67 events. 20/67 cut-off events. For 192/196 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 222 event pairs, 1 based on Foata normal form. 2/69 useless extension candidates. Maximal degree in co-relation 249. Up to 21 conditions per place. [2021-03-26 10:35:35,919 INFO L142 LiptonReduction]: Number of co-enabled transitions 154 [2021-03-26 10:35:36,111 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-03-26 10:35:36,513 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 87 [2021-03-26 10:35:36,639 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-26 10:35:36,663 INFO L154 LiptonReduction]: Checked pairs total: 11 [2021-03-26 10:35:36,663 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 10:35:36,664 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 754 [2021-03-26 10:35:36,664 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 36 transitions, 304 flow [2021-03-26 10:35:36,664 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 123.0) internal successors, (984), 8 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:36,664 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:36,665 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:36,665 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-26 10:35:36,665 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:36,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:36,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1979040484, now seen corresponding path program 1 times [2021-03-26 10:35:36,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:36,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144894668] [2021-03-26 10:35:36,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:36,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 10:35:36,692 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 10:35:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 10:35:36,715 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 10:35:36,739 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 10:35:36,739 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 10:35:36,739 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-26 10:35:36,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 10:35:36 BasicIcfg [2021-03-26 10:35:36,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 10:35:36,814 INFO L168 Benchmark]: Toolchain (without parser) took 30983.83 ms. Allocated memory was 255.9 MB in the beginning and 876.6 MB in the end (delta: 620.8 MB). Free memory was 232.3 MB in the beginning and 477.9 MB in the end (delta: -245.7 MB). Peak memory consumption was 373.8 MB. Max. memory is 16.0 GB. [2021-03-26 10:35:36,814 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:35:36,814 INFO L168 Benchmark]: CACSL2BoogieTranslator took 544.53 ms. Allocated memory was 255.9 MB in the beginning and 362.8 MB in the end (delta: 107.0 MB). Free memory was 232.3 MB in the beginning and 321.4 MB in the end (delta: -89.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-26 10:35:36,814 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.39 ms. Allocated memory is still 362.8 MB. Free memory was 321.4 MB in the beginning and 318.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:35:36,814 INFO L168 Benchmark]: Boogie Preprocessor took 28.15 ms. Allocated memory is still 362.8 MB. Free memory was 318.6 MB in the beginning and 316.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:35:36,815 INFO L168 Benchmark]: RCFGBuilder took 1684.94 ms. Allocated memory is still 362.8 MB. Free memory was 316.5 MB in the beginning and 306.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 65.4 MB. Max. memory is 16.0 GB. [2021-03-26 10:35:36,815 INFO L168 Benchmark]: TraceAbstraction took 28670.29 ms. Allocated memory was 362.8 MB in the beginning and 876.6 MB in the end (delta: 513.8 MB). Free memory was 306.7 MB in the beginning and 477.9 MB in the end (delta: -171.2 MB). Peak memory consumption was 341.5 MB. Max. memory is 16.0 GB. [2021-03-26 10:35:36,815 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 544.53 ms. Allocated memory was 255.9 MB in the beginning and 362.8 MB in the end (delta: 107.0 MB). Free memory was 232.3 MB in the beginning and 321.4 MB in the end (delta: -89.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 42.39 ms. Allocated memory is still 362.8 MB. Free memory was 321.4 MB in the beginning and 318.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.15 ms. Allocated memory is still 362.8 MB. Free memory was 318.6 MB in the beginning and 316.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1684.94 ms. Allocated memory is still 362.8 MB. Free memory was 316.5 MB in the beginning and 306.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 65.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 28670.29 ms. Allocated memory was 362.8 MB in the beginning and 876.6 MB in the end (delta: 513.8 MB). Free memory was 306.7 MB in the beginning and 477.9 MB in the end (delta: -171.2 MB). Peak memory consumption was 341.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7521.7ms, 100 PlacesBefore, 46 PlacesAfterwards, 92 TransitionsBefore, 37 TransitionsAfterwards, 1602 CoEnabledTransitionPairs, 6 FixpointIterations, 24 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 66 TotalNumberOfCompositions, 2709 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1459, positive: 1380, positive conditional: 1380, positive unconditional: 0, negative: 79, negative conditional: 79, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1459, positive: 1380, positive conditional: 0, positive unconditional: 1380, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1459, positive: 1380, positive conditional: 0, positive unconditional: 1380, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1148, positive: 1112, positive conditional: 0, positive unconditional: 1112, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1148, positive: 1104, positive conditional: 0, positive unconditional: 1104, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 44, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 629, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 605, negative conditional: 0, negative unconditional: 605, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1459, positive: 268, positive conditional: 0, positive unconditional: 268, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 1148, unknown conditional: 0, unknown unconditional: 1148] , Statistics on independence cache: Total cache size (in pairs): 1148, Positive cache size: 1112, Positive conditional cache size: 0, Positive unconditional cache size: 1112, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3241.7ms, 43 PlacesBefore, 31 PlacesAfterwards, 32 TransitionsBefore, 22 TransitionsAfterwards, 234 CoEnabledTransitionPairs, 4 FixpointIterations, 9 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 1040 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 281, positive: 202, positive conditional: 202, positive unconditional: 0, negative: 79, negative conditional: 79, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 281, positive: 202, positive conditional: 28, positive unconditional: 174, negative: 79, negative conditional: 21, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 281, positive: 202, positive conditional: 28, positive unconditional: 174, negative: 79, negative conditional: 21, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 79, positive: 61, positive conditional: 8, positive unconditional: 53, negative: 18, negative conditional: 6, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 79, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 18, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 18, negative conditional: 6, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 350, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 350, negative conditional: 120, negative unconditional: 230, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 281, positive: 141, positive conditional: 20, positive unconditional: 121, negative: 61, negative conditional: 15, negative unconditional: 46, unknown: 79, unknown conditional: 14, unknown unconditional: 65] , Statistics on independence cache: Total cache size (in pairs): 1227, Positive cache size: 1173, Positive conditional cache size: 8, Positive unconditional cache size: 1165, Negative cache size: 54, Negative conditional cache size: 6, Negative unconditional cache size: 48, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 977.4ms, 32 PlacesBefore, 31 PlacesAfterwards, 24 TransitionsBefore, 23 TransitionsAfterwards, 242 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 444 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 85, positive: 53, positive conditional: 53, positive unconditional: 0, negative: 32, negative conditional: 32, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 85, positive: 53, positive conditional: 0, positive unconditional: 53, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 85, positive: 53, positive conditional: 0, positive unconditional: 53, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 189, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 189, negative conditional: 0, negative unconditional: 189, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 85, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 14, unknown conditional: 0, unknown unconditional: 14] , Statistics on independence cache: Total cache size (in pairs): 1241, Positive cache size: 1181, Positive conditional cache size: 8, Positive unconditional cache size: 1173, Negative cache size: 60, Negative conditional cache size: 6, Negative unconditional cache size: 54, Eliminated conditions: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 61.2ms, 33 PlacesBefore, 33 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 240 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 209 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 55, positive: 40, positive conditional: 40, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 55, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 55, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 52, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 55, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , Statistics on independence cache: Total cache size (in pairs): 1248, Positive cache size: 1185, Positive conditional cache size: 8, Positive unconditional cache size: 1177, Negative cache size: 63, Negative conditional cache size: 6, Negative unconditional cache size: 57, Eliminated conditions: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 76.0ms, 34 PlacesBefore, 34 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 262 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 148 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 35, positive: 25, positive conditional: 25, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 35, positive: 25, positive conditional: 4, positive unconditional: 21, negative: 10, negative conditional: 1, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 35, positive: 25, positive conditional: 4, positive unconditional: 21, negative: 10, negative conditional: 1, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 3, positive unconditional: 2, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 61, positive: 57, positive conditional: 57, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 35, positive: 20, positive conditional: 1, positive unconditional: 19, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 6, unknown conditional: 4, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1254, Positive cache size: 1190, Positive conditional cache size: 11, Positive unconditional cache size: 1179, Negative cache size: 64, Negative conditional cache size: 7, Negative unconditional cache size: 57, Eliminated conditions: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.9ms, 36 PlacesBefore, 36 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 262 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 158 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 49, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 49, positive: 38, positive conditional: 2, positive unconditional: 36, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 49, positive: 38, positive conditional: 2, positive unconditional: 36, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, 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: 10, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 49, positive: 37, positive conditional: 1, positive unconditional: 36, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1255, Positive cache size: 1191, Positive conditional cache size: 12, Positive unconditional cache size: 1179, Negative cache size: 64, Negative conditional cache size: 7, Negative unconditional cache size: 57, Eliminated conditions: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.3ms, 39 PlacesBefore, 39 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 242 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 137 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 32, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 33, positive: 22, positive conditional: 2, positive unconditional: 20, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 33, positive: 22, positive conditional: 2, positive unconditional: 20, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 33, positive: 21, positive conditional: 2, positive unconditional: 19, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 2, unknown conditional: 1, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 1257, Positive cache size: 1192, Positive conditional cache size: 12, Positive unconditional cache size: 1180, Negative cache size: 65, Negative conditional cache size: 8, Negative unconditional cache size: 57, Eliminated conditions: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 74.0ms, 41 PlacesBefore, 41 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 296 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 132 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 35, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 35, positive: 27, positive conditional: 5, positive unconditional: 22, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 35, positive: 27, positive conditional: 5, positive unconditional: 22, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 2, positive unconditional: 1, 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: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 50, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 35, positive: 24, positive conditional: 3, positive unconditional: 21, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 5, unknown conditional: 2, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 1262, Positive cache size: 1195, Positive conditional cache size: 14, Positive unconditional cache size: 1181, Negative cache size: 67, Negative conditional cache size: 8, Negative unconditional cache size: 59, Eliminated conditions: 8 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.7ms, 45 PlacesBefore, 45 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 302 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 63 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21, positive: 17, positive conditional: 17, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 21, positive: 17, positive conditional: 3, positive unconditional: 14, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 21, positive: 17, positive conditional: 3, positive unconditional: 14, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 2, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 21, positive: 14, positive conditional: 1, positive unconditional: 13, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 3, unknown conditional: 2, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 1265, Positive cache size: 1198, Positive conditional cache size: 16, Positive unconditional cache size: 1182, Negative cache size: 67, Negative conditional cache size: 8, Negative unconditional cache size: 59, Eliminated conditions: 8 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.3ms, 51 PlacesBefore, 51 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 334 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 119 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 46, positive: 40, positive conditional: 40, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 46, positive: 40, positive conditional: 22, positive unconditional: 18, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 46, positive: 40, positive conditional: 22, positive unconditional: 18, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 7, positive conditional: 5, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 46, positive: 33, positive conditional: 17, positive unconditional: 16, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 8, unknown conditional: 5, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 1273, Positive cache size: 1205, Positive conditional cache size: 21, Positive unconditional cache size: 1184, Negative cache size: 68, Negative conditional cache size: 8, Negative unconditional cache size: 60, Eliminated conditions: 12 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 51.3ms, 58 PlacesBefore, 58 PlacesAfterwards, 54 TransitionsBefore, 54 TransitionsAfterwards, 422 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 288 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 86, positive: 72, positive conditional: 72, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 86, positive: 72, positive conditional: 37, positive unconditional: 35, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 86, positive: 72, positive conditional: 37, positive unconditional: 35, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 86, positive: 71, positive conditional: 36, positive unconditional: 35, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1274, Positive cache size: 1206, Positive conditional cache size: 22, Positive unconditional cache size: 1184, Negative cache size: 68, Negative conditional cache size: 8, Negative unconditional cache size: 60, Eliminated conditions: 24 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 52.6ms, 62 PlacesBefore, 62 PlacesAfterwards, 56 TransitionsBefore, 56 TransitionsAfterwards, 424 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 418 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 164, positive: 146, positive conditional: 146, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 164, positive: 146, positive conditional: 89, positive unconditional: 57, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 164, positive: 146, positive conditional: 89, positive unconditional: 57, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 164, positive: 146, positive conditional: 89, positive unconditional: 57, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1274, Positive cache size: 1206, Positive conditional cache size: 22, Positive unconditional cache size: 1184, Negative cache size: 68, Negative conditional cache size: 8, Negative unconditional cache size: 60, Eliminated conditions: 37 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 134.3ms, 66 PlacesBefore, 64 PlacesAfterwards, 56 TransitionsBefore, 56 TransitionsAfterwards, 400 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 488 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 199, positive: 181, positive conditional: 181, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 199, positive: 181, positive conditional: 96, positive unconditional: 85, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 199, positive: 181, positive conditional: 96, positive unconditional: 85, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 199, positive: 179, positive conditional: 96, positive unconditional: 83, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1276, Positive cache size: 1208, Positive conditional cache size: 22, Positive unconditional cache size: 1186, Negative cache size: 68, Negative conditional cache size: 8, Negative unconditional cache size: 60, Eliminated conditions: 49 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2724.2ms, 66 PlacesBefore, 66 PlacesAfterwards, 55 TransitionsBefore, 55 TransitionsAfterwards, 488 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 3 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1278, Positive cache size: 1210, Positive conditional cache size: 22, Positive unconditional cache size: 1188, Negative cache size: 68, Negative conditional cache size: 8, Negative unconditional cache size: 60, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 71.5ms, 69 PlacesBefore, 69 PlacesAfterwards, 54 TransitionsBefore, 53 TransitionsAfterwards, 480 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 34 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 34, positive: 34, positive conditional: 34, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 34, positive: 34, positive conditional: 30, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 34, positive: 34, positive conditional: 30, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 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: 34, positive: 30, positive conditional: 28, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1282, Positive cache size: 1214, Positive conditional cache size: 24, Positive unconditional cache size: 1190, Negative cache size: 68, Negative conditional cache size: 8, Negative unconditional cache size: 60, Eliminated conditions: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 862.3ms, 68 PlacesBefore, 68 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 342 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 1283, Positive cache size: 1215, Positive conditional cache size: 24, Positive unconditional cache size: 1191, Negative cache size: 68, Negative conditional cache size: 8, Negative unconditional cache size: 60, Eliminated conditions: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.9ms, 71 PlacesBefore, 71 PlacesAfterwards, 57 TransitionsBefore, 56 TransitionsAfterwards, 370 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 18 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 18, positive: 18, positive conditional: 17, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18, positive: 18, positive conditional: 17, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18, positive: 17, positive conditional: 16, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1284, Positive cache size: 1216, Positive conditional cache size: 25, Positive unconditional cache size: 1191, Negative cache size: 68, Negative conditional cache size: 8, Negative unconditional cache size: 60, Eliminated conditions: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.0ms, 71 PlacesBefore, 71 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 300 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1284, Positive cache size: 1216, Positive conditional cache size: 25, Positive unconditional cache size: 1191, Negative cache size: 68, Negative conditional cache size: 8, Negative unconditional cache size: 60, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.1ms, 72 PlacesBefore, 72 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 294 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1284, Positive cache size: 1216, Positive conditional cache size: 25, Positive unconditional cache size: 1191, Negative cache size: 68, Negative conditional cache size: 8, Negative unconditional cache size: 60, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.4ms, 72 PlacesBefore, 71 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 292 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1284, Positive cache size: 1216, Positive conditional cache size: 25, Positive unconditional cache size: 1191, Negative cache size: 68, Negative conditional cache size: 8, Negative unconditional cache size: 60, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.5ms, 69 PlacesBefore, 64 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 278 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1284, Positive cache size: 1216, Positive conditional cache size: 25, Positive unconditional cache size: 1191, Negative cache size: 68, Negative conditional cache size: 8, Negative unconditional cache size: 60, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5556.8ms, 66 PlacesBefore, 61 PlacesAfterwards, 40 TransitionsBefore, 36 TransitionsAfterwards, 192 CoEnabledTransitionPairs, 4 FixpointIterations, 1 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 42 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 42, positive: 42, positive conditional: 42, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 42, positive: 42, positive conditional: 35, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 42, positive: 42, positive conditional: 35, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 42, positive: 38, positive conditional: 31, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1288, Positive cache size: 1220, Positive conditional cache size: 29, Positive unconditional cache size: 1191, Negative cache size: 68, Negative conditional cache size: 8, Negative unconditional cache size: 60, Eliminated conditions: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 752.8ms, 58 PlacesBefore, 56 PlacesAfterwards, 37 TransitionsBefore, 36 TransitionsAfterwards, 154 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 11 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 11, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 11, positive: 11, positive conditional: 6, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 6, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, 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: 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: 11, positive: 9, positive conditional: 4, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1290, Positive cache size: 1222, Positive conditional cache size: 31, Positive unconditional cache size: 1191, Negative cache size: 68, Negative conditional cache size: 8, Negative unconditional cache size: 60, Eliminated conditions: 5 - 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; [L711] 0 int __unbuffered_p2_EAX = 0; [L712] 0 _Bool main$tmp_guard0; [L713] 0 _Bool main$tmp_guard1; [L715] 0 int x = 0; [L717] 0 int y = 0; [L718] 0 _Bool y$flush_delayed; [L719] 0 int y$mem_tmp; [L720] 0 _Bool y$r_buff0_thd0; [L721] 0 _Bool y$r_buff0_thd1; [L722] 0 _Bool y$r_buff0_thd2; [L723] 0 _Bool y$r_buff0_thd3; [L724] 0 _Bool y$r_buff1_thd0; [L725] 0 _Bool y$r_buff1_thd1; [L726] 0 _Bool y$r_buff1_thd2; [L727] 0 _Bool y$r_buff1_thd3; [L728] 0 _Bool y$read_delayed; [L729] 0 int *y$read_delayed_var; [L730] 0 int y$w_buff0; [L731] 0 _Bool y$w_buff0_used; [L732] 0 int y$w_buff1; [L733] 0 _Bool y$w_buff1_used; [L734] 0 _Bool weak$$choice0; [L735] 0 _Bool weak$$choice2; [L813] 0 pthread_t t2189; [L814] FCALL, FORK 0 pthread_create(&t2189, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=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] [L739] 1 y$w_buff1 = y$w_buff0 [L740] 1 y$w_buff0 = 2 [L741] 1 y$w_buff1_used = y$w_buff0_used [L742] 1 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 1 !(!expression) [L744] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L745] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L746] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L747] 1 y$r_buff1_thd3 = y$r_buff0_thd3 [L748] 1 y$r_buff0_thd1 = (_Bool)1 [L751] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$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=1, 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$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L815] 0 pthread_t t2190; [L816] FCALL, FORK 0 pthread_create(&t2190, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=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=1, 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$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L768] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=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=1, 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$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L817] 0 pthread_t t2191; [L818] FCALL, FORK 0 pthread_create(&t2191, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=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=1, 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$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L785] 3 __unbuffered_p2_EAX = x [L788] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, 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=1, 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$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L754] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L754] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L755] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L755] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L756] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L756] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L757] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L757] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L758] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L758] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L771] 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) [L771] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L771] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L772] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L772] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L773] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L773] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L774] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L774] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L775] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L775] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L791] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L791] EXPR 3 y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y [L791] 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) [L791] 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) [L792] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L792] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L793] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L793] 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 [L794] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L794] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L795] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L795] 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 [L761] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L763] 1 return 0; [L778] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L780] 2 return 0; [L798] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L800] 3 return 0; [L820] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L824] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L824] 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) [L824] 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) [L825] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L825] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L826] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L826] 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 [L827] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L827] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L828] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L828] 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 [L831] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L832] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L833] 0 y$flush_delayed = weak$$choice2 [L834] 0 y$mem_tmp = y [L835] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L835] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L836] EXPR 0 weak$$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$w_buff0)) [L836] EXPR 0 !y$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) [L836] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L836] 0 y$w_buff0 = weak$$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)) [L837] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L837] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1) [L837] EXPR 0 weak$$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$w_buff1)) [L837] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L838] EXPR 0 weak$$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)) [L838] EXPR 0 !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) [L838] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L838] 0 y$w_buff0_used = weak$$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)) [L839] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L839] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L839] EXPR 0 weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L839] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L840] EXPR 0 weak$$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)) [L840] EXPR 0 !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) [L840] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L840] 0 y$r_buff0_thd0 = weak$$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)) [L841] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L841] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L841] EXPR 0 weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L841] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L842] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 2) [L843] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L843] 0 y = y$flush_delayed ? y$mem_tmp : y [L844] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=55, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, 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$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 94 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 28504.5ms, OverallIterations: 23, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 2642.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7616.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 115 SDtfs, 33 SDslu, 34 SDs, 0 SdLazy, 728 SolverSat, 125 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 830.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1415.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=506occurred in iteration=11, InterpolantAutomatonStates: 103, 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: 65.1ms SsaConstructionTime, 558.9ms SatisfiabilityAnalysisTime, 2337.9ms InterpolantComputationTime, 328 NumberOfCodeBlocks, 328 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 290 ConstructedInterpolants, 0 QuantifiedInterpolants, 3768 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 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...