/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.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 10:35:04,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 10:35:04,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 10:35:04,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 10:35:04,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 10:35:04,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 10:35:04,445 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 10:35:04,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 10:35:04,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 10:35:04,457 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 10:35:04,458 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 10:35:04,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 10:35:04,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 10:35:04,462 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 10:35:04,463 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 10:35:04,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 10:35:04,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 10:35:04,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 10:35:04,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 10:35:04,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 10:35:04,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 10:35:04,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 10:35:04,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 10:35:04,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 10:35:04,498 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-26 10:35:04,498 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-26 10:35:04,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-26 10:35:04,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-26 10:35:04,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-26 10:35:04,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-26 10:35:04,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 10:35:04,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 10:35:04,504 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 10:35:04,505 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 10:35:04,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 10:35:04,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 10:35:04,506 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 10:35:04,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 10:35:04,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 10:35:04,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 10:35:04,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 10:35:04,512 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 10:35:04,549 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 10:35:04,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 10:35:04,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 10:35:04,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 10:35:04,553 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 10:35:04,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 10:35:04,553 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 10:35:04,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 10:35:04,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 10:35:04,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 10:35:04,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 10:35:04,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 10:35:04,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 10:35:04,555 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 10:35:04,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 10:35:04,555 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 10:35:04,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 10:35:04,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 10:35:04,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 10:35:04,556 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 10:35:04,556 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 10:35:04,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:35:04,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 10:35:04,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 10:35:04,557 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 10:35:04,557 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 10:35:04,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 10:35:04,557 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 10:35:04,557 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 10:35:04,557 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 10:35:04,557 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 10:35:04,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 10:35:04,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 10:35:04,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 10:35:04,910 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 10:35:04,912 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 10:35:04,912 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_rmo.opt.i [2021-03-26 10:35:04,985 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecd4ec6ce/25184ef380bb4f54907582d8afbd9d63/FLAGbfb68a8cd [2021-03-26 10:35:05,544 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 10:35:05,545 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_rmo.opt.i [2021-03-26 10:35:05,562 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecd4ec6ce/25184ef380bb4f54907582d8afbd9d63/FLAGbfb68a8cd [2021-03-26 10:35:05,820 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecd4ec6ce/25184ef380bb4f54907582d8afbd9d63 [2021-03-26 10:35:05,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 10:35:05,825 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 10:35:05,828 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 10:35:05,828 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 10:35:05,831 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 10:35:05,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:35:05" (1/1) ... [2021-03-26 10:35:05,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff2fed4 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 10:35:05,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:35:05" (1/1) ... [2021-03-26 10:35:05,839 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 10:35:05,895 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 10:35:06,007 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_rmo.opt.i[949,962] [2021-03-26 10:35:06,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:35:06,221 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 10:35:06,231 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.opt.i[949,962] [2021-03-26 10:35:06,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:35:06,337 INFO L208 MainTranslator]: Completed translation [2021-03-26 10:35:06,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:06 WrapperNode [2021-03-26 10:35:06,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 10:35:06,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 10:35:06,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 10:35:06,339 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 10:35:06,346 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 10:35:06,361 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 10:35:06,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 10:35:06,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 10:35:06,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 10:35:06,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 10:35:06,393 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 10:35:06,393 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 10:35:06,397 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 10:35:06,397 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 10:35:06,405 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 10:35:06,408 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 10:35:06,411 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 10:35:06,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 10:35:06,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 10:35:06,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 10:35:06,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 10:35:06,417 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 10:35:06,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 10:35:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 10:35:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 10:35:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 10:35:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 10:35:06,493 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 10:35:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 10:35:06,493 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 10:35:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 10:35:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 10:35:06,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 10:35:06,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 10:35:06,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 10:35:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 10:35:06,495 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 10:35:08,444 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 10:35:08,445 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-26 10:35:08,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:35:08 BoogieIcfgContainer [2021-03-26 10:35:08,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 10:35:08,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 10:35:08,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 10:35:08,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 10:35:08,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 10:35:05" (1/3) ... [2021-03-26 10:35:08,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d42e729 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 10:35:08,474 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 10:35:08,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d42e729 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 10:35:08,475 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 10:35:08,476 INFO L111 eAbstractionObserver]: Analyzing ICFG safe017_rmo.opt.i [2021-03-26 10:35:08,482 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 10:35:08,487 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-26 10:35:08,488 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 10:35:08,524 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,524 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,525 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,525 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,525 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,525 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,525 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,525 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,525 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,525 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,526 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,526 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,526 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,526 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,526 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,526 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,527 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,527 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,527 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,527 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,527 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,527 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,529 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,529 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,529 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,529 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,529 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,530 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,530 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,530 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,530 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,531 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,532 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,532 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,532 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,533 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,533 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,533 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,534 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,534 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,534 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,534 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,534 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,534 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,534 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,535 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,535 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,535 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,535 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,535 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,535 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,535 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,536 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,536 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,536 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,537 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,537 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,538 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,538 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,538 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,538 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,538 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,538 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,539 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,539 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,539 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,539 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,539 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,539 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,539 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,539 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,540 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,541 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,541 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,541 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,541 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,541 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,541 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,542 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,542 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,543 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,543 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,545 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,545 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,545 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,545 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,545 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,545 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,548 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,548 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,548 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,548 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,548 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,549 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,549 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,549 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,549 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,549 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,550 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,550 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,551 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,551 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,551 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,551 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,551 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,551 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,551 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,552 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,552 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,552 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:08,553 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:35:08,571 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-26 10:35:08,589 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:35:08,589 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:35:08,589 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:35:08,590 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:35:08,590 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:35:08,590 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:35:08,590 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:35:08,590 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:35:08,600 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 95 transitions, 205 flow [2021-03-26 10:35:08,631 INFO L129 PetriNetUnfolder]: 2/92 cut-off events. [2021-03-26 10:35:08,631 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:35:08,635 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 10:35:08,635 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 95 transitions, 205 flow [2021-03-26 10:35:08,639 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 92 transitions, 193 flow [2021-03-26 10:35:08,640 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:08,652 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 92 transitions, 193 flow [2021-03-26 10:35:08,655 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 92 transitions, 193 flow [2021-03-26 10:35:08,656 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 92 transitions, 193 flow [2021-03-26 10:35:08,673 INFO L129 PetriNetUnfolder]: 2/92 cut-off events. [2021-03-26 10:35:08,674 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:35:08,674 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 10:35:08,677 INFO L142 LiptonReduction]: Number of co-enabled transitions 1602 [2021-03-26 10:35:10,503 WARN L205 SmtUtils]: Spent 757.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 185 [2021-03-26 10:35:10,800 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-03-26 10:35:12,213 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 310 DAG size of output: 265 [2021-03-26 10:35:12,834 WARN L205 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2021-03-26 10:35:13,101 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-26 10:35:13,474 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-26 10:35:13,590 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-26 10:35:14,825 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-03-26 10:35:15,116 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-03-26 10:35:15,721 WARN L205 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2021-03-26 10:35:16,327 WARN L205 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2021-03-26 10:35:16,633 INFO L154 LiptonReduction]: Checked pairs total: 2709 [2021-03-26 10:35:16,633 INFO L156 LiptonReduction]: Total number of compositions: 66 [2021-03-26 10:35:16,636 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7996 [2021-03-26 10:35:16,648 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-03-26 10:35:16,649 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:35:16,649 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:16,649 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:16,650 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 10:35:16,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:16,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1950849355, now seen corresponding path program 1 times [2021-03-26 10:35:16,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:16,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863350975] [2021-03-26 10:35:16,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:16,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:16,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:35:16,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:16,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:16,938 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 10:35:16,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863350975] [2021-03-26 10:35:16,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:16,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:35:16,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308462337] [2021-03-26 10:35:16,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:35:16,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:16,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:35:16,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:35:16,963 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 161 [2021-03-26 10:35:16,968 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 10:35:16,968 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:16,969 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 161 [2021-03-26 10:35:16,970 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:17,105 INFO L129 PetriNetUnfolder]: 69/176 cut-off events. [2021-03-26 10:35:17,106 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:35:17,107 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 10:35:17,110 INFO L132 encePairwiseOnDemand]: 157/161 looper letters, 9 selfloop transitions, 2 changer transitions 3/39 dead transitions. [2021-03-26 10:35:17,110 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 39 transitions, 113 flow [2021-03-26 10:35:17,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:35:17,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:35:17,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 427 transitions. [2021-03-26 10:35:17,131 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8840579710144928 [2021-03-26 10:35:17,132 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 427 transitions. [2021-03-26 10:35:17,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 427 transitions. [2021-03-26 10:35:17,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:17,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 427 transitions. [2021-03-26 10:35:17,143 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 10:35:17,161 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 10:35:17,162 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 10:35:17,163 INFO L185 Difference]: Start difference. First operand has 46 places, 37 transitions, 83 flow. Second operand 3 states and 427 transitions. [2021-03-26 10:35:17,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 39 transitions, 113 flow [2021-03-26 10:35:17,167 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 10:35:17,169 INFO L241 Difference]: Finished difference. Result has 43 places, 32 transitions, 74 flow [2021-03-26 10:35:17,170 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 10:35:17,171 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2021-03-26 10:35:17,171 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:17,171 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 32 transitions, 74 flow [2021-03-26 10:35:17,171 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 32 transitions, 74 flow [2021-03-26 10:35:17,172 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 32 transitions, 74 flow [2021-03-26 10:35:17,177 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2021-03-26 10:35:17,177 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:35:17,177 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 10:35:17,178 INFO L142 LiptonReduction]: Number of co-enabled transitions 234 [2021-03-26 10:35:17,834 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-26 10:35:18,183 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-26 10:35:18,885 WARN L205 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-26 10:35:19,498 WARN L205 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-26 10:35:20,234 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-03-26 10:35:20,405 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-03-26 10:35:20,469 INFO L154 LiptonReduction]: Checked pairs total: 1040 [2021-03-26 10:35:20,469 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-26 10:35:20,469 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3298 [2021-03-26 10:35:20,470 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 54 flow [2021-03-26 10:35:20,471 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 10:35:20,471 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:20,471 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 10:35:20,471 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 10:35:20,471 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 10:35:20,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:20,472 INFO L82 PathProgramCache]: Analyzing trace with hash 344608737, now seen corresponding path program 1 times [2021-03-26 10:35:20,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:20,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469658595] [2021-03-26 10:35:20,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:20,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:20,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:20,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:35:20,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:20,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:20,597 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-26 10:35:20,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 10:35:20,602 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 10:35:20,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469658595] [2021-03-26 10:35:20,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:20,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:35:20,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118277456] [2021-03-26 10:35:20,603 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:35:20,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:20,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:35:20,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:35:20,609 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 171 [2021-03-26 10:35:20,610 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 10:35:20,610 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:20,610 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 171 [2021-03-26 10:35:20,610 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:20,633 INFO L129 PetriNetUnfolder]: 12/53 cut-off events. [2021-03-26 10:35:20,633 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:35:20,633 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 10:35:20,634 INFO L132 encePairwiseOnDemand]: 167/171 looper letters, 5 selfloop transitions, 3 changer transitions 0/25 dead transitions. [2021-03-26 10:35:20,634 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 25 transitions, 76 flow [2021-03-26 10:35:20,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:35:20,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:35:20,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 438 transitions. [2021-03-26 10:35:20,636 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8538011695906432 [2021-03-26 10:35:20,636 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 438 transitions. [2021-03-26 10:35:20,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 438 transitions. [2021-03-26 10:35:20,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:20,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 438 transitions. [2021-03-26 10:35:20,638 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 10:35:20,639 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 10:35:20,640 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 10:35:20,640 INFO L185 Difference]: Start difference. First operand has 31 places, 22 transitions, 54 flow. Second operand 3 states and 438 transitions. [2021-03-26 10:35:20,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 25 transitions, 76 flow [2021-03-26 10:35:20,640 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 10:35:20,641 INFO L241 Difference]: Finished difference. Result has 32 places, 24 transitions, 69 flow [2021-03-26 10:35:20,641 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 10:35:20,641 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -14 predicate places. [2021-03-26 10:35:20,641 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:20,641 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 24 transitions, 69 flow [2021-03-26 10:35:20,642 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 24 transitions, 69 flow [2021-03-26 10:35:20,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 24 transitions, 69 flow [2021-03-26 10:35:20,646 INFO L129 PetriNetUnfolder]: 3/32 cut-off events. [2021-03-26 10:35:20,647 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:35:20,647 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 10:35:20,647 INFO L142 LiptonReduction]: Number of co-enabled transitions 242 [2021-03-26 10:35:21,029 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-26 10:35:21,152 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-26 10:35:21,419 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-26 10:35:21,546 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-26 10:35:21,609 INFO L154 LiptonReduction]: Checked pairs total: 444 [2021-03-26 10:35:21,609 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:35:21,610 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 969 [2021-03-26 10:35:21,611 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 67 flow [2021-03-26 10:35:21,611 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 10:35:21,611 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:21,611 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:21,611 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 10:35:21,612 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 10:35:21,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:21,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1004352304, now seen corresponding path program 1 times [2021-03-26 10:35:21,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:21,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322178967] [2021-03-26 10:35:21,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:21,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:21,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:21,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:21,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322178967] [2021-03-26 10:35:21,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:21,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 10:35:21,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268631203] [2021-03-26 10:35:21,725 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:35:21,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:21,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:35:21,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:35:21,728 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 172 [2021-03-26 10:35:21,728 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 10:35:21,729 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:21,729 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 172 [2021-03-26 10:35:21,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:21,745 INFO L129 PetriNetUnfolder]: 3/31 cut-off events. [2021-03-26 10:35:21,745 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-26 10:35:21,746 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 10:35:21,746 INFO L132 encePairwiseOnDemand]: 169/172 looper letters, 1 selfloop transitions, 2 changer transitions 0/23 dead transitions. [2021-03-26 10:35:21,746 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 23 transitions, 73 flow [2021-03-26 10:35:21,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:35:21,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:35:21,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions. [2021-03-26 10:35:21,749 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8798449612403101 [2021-03-26 10:35:21,749 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 454 transitions. [2021-03-26 10:35:21,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 454 transitions. [2021-03-26 10:35:21,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:21,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 454 transitions. [2021-03-26 10:35:21,750 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 10:35:21,751 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 10:35:21,752 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 10:35:21,752 INFO L185 Difference]: Start difference. First operand has 31 places, 23 transitions, 67 flow. Second operand 3 states and 454 transitions. [2021-03-26 10:35:21,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 23 transitions, 73 flow [2021-03-26 10:35:21,753 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 10:35:21,753 INFO L241 Difference]: Finished difference. Result has 33 places, 23 transitions, 72 flow [2021-03-26 10:35:21,753 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 10:35:21,754 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -13 predicate places. [2021-03-26 10:35:21,754 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:21,754 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 23 transitions, 72 flow [2021-03-26 10:35:21,755 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 23 transitions, 72 flow [2021-03-26 10:35:21,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 23 transitions, 72 flow [2021-03-26 10:35:21,760 INFO L129 PetriNetUnfolder]: 3/31 cut-off events. [2021-03-26 10:35:21,760 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 10:35:21,762 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 10:35:21,762 INFO L142 LiptonReduction]: Number of co-enabled transitions 240 [2021-03-26 10:35:21,839 INFO L154 LiptonReduction]: Checked pairs total: 209 [2021-03-26 10:35:21,840 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:21,840 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 86 [2021-03-26 10:35:21,843 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 23 transitions, 72 flow [2021-03-26 10:35:21,846 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 10:35:21,846 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:21,846 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:21,846 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 10:35:21,851 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 10:35:21,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:21,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1655303566, now seen corresponding path program 1 times [2021-03-26 10:35:21,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:21,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726674788] [2021-03-26 10:35:21,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:21,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:21,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:35:21,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:21,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:35:21,943 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 10:35:21,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726674788] [2021-03-26 10:35:21,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:21,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:35:21,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756510234] [2021-03-26 10:35:21,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:35:21,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:21,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:35:21,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:35:21,947 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 172 [2021-03-26 10:35:21,948 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 10:35:21,948 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:21,948 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 172 [2021-03-26 10:35:21,948 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:22,023 INFO L129 PetriNetUnfolder]: 106/222 cut-off events. [2021-03-26 10:35:22,023 INFO L130 PetriNetUnfolder]: For 69/69 co-relation queries the response was YES. [2021-03-26 10:35:22,024 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 10:35:22,027 INFO L132 encePairwiseOnDemand]: 167/172 looper letters, 8 selfloop transitions, 4 changer transitions 0/27 dead transitions. [2021-03-26 10:35:22,027 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 27 transitions, 104 flow [2021-03-26 10:35:22,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:35:22,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:35:22,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2021-03-26 10:35:22,029 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7693798449612403 [2021-03-26 10:35:22,029 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2021-03-26 10:35:22,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2021-03-26 10:35:22,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:22,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2021-03-26 10:35:22,030 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 10:35:22,031 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 10:35:22,031 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 10:35:22,031 INFO L185 Difference]: Start difference. First operand has 33 places, 23 transitions, 72 flow. Second operand 3 states and 397 transitions. [2021-03-26 10:35:22,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 27 transitions, 104 flow [2021-03-26 10:35:22,032 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 10:35:22,033 INFO L241 Difference]: Finished difference. Result has 34 places, 26 transitions, 94 flow [2021-03-26 10:35:22,033 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 10:35:22,033 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -12 predicate places. [2021-03-26 10:35:22,033 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:22,033 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 26 transitions, 94 flow [2021-03-26 10:35:22,034 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 26 transitions, 94 flow [2021-03-26 10:35:22,034 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 26 transitions, 94 flow [2021-03-26 10:35:22,044 INFO L129 PetriNetUnfolder]: 26/83 cut-off events. [2021-03-26 10:35:22,044 INFO L130 PetriNetUnfolder]: For 35/43 co-relation queries the response was YES. [2021-03-26 10:35:22,044 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 10:35:22,045 INFO L142 LiptonReduction]: Number of co-enabled transitions 262 [2021-03-26 10:35:22,097 INFO L154 LiptonReduction]: Checked pairs total: 148 [2021-03-26 10:35:22,097 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:22,097 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 64 [2021-03-26 10:35:22,098 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 94 flow [2021-03-26 10:35:22,098 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 10:35:22,099 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:22,099 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:22,099 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 10:35:22,099 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 10:35:22,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:22,099 INFO L82 PathProgramCache]: Analyzing trace with hash 714472308, now seen corresponding path program 1 times [2021-03-26 10:35:22,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:22,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344605336] [2021-03-26 10:35:22,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:22,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:22,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:35:22,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:22,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:22,183 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 10:35:22,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344605336] [2021-03-26 10:35:22,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:22,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:35:22,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772718957] [2021-03-26 10:35:22,183 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:35:22,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:22,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:35:22,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:35:22,184 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 172 [2021-03-26 10:35:22,185 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 10:35:22,185 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:22,185 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 172 [2021-03-26 10:35:22,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:22,210 INFO L129 PetriNetUnfolder]: 24/102 cut-off events. [2021-03-26 10:35:22,210 INFO L130 PetriNetUnfolder]: For 107/151 co-relation queries the response was YES. [2021-03-26 10:35:22,211 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 10:35:22,211 INFO L132 encePairwiseOnDemand]: 169/172 looper letters, 5 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2021-03-26 10:35:22,211 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 27 transitions, 113 flow [2021-03-26 10:35:22,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:35:22,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:35:22,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 449 transitions. [2021-03-26 10:35:22,214 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8701550387596899 [2021-03-26 10:35:22,214 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 449 transitions. [2021-03-26 10:35:22,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 449 transitions. [2021-03-26 10:35:22,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:22,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 449 transitions. [2021-03-26 10:35:22,216 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 10:35:22,217 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 10:35:22,217 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 10:35:22,218 INFO L185 Difference]: Start difference. First operand has 34 places, 26 transitions, 94 flow. Second operand 3 states and 449 transitions. [2021-03-26 10:35:22,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 27 transitions, 113 flow [2021-03-26 10:35:22,218 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 10:35:22,219 INFO L241 Difference]: Finished difference. Result has 36 places, 26 transitions, 101 flow [2021-03-26 10:35:22,219 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 10:35:22,219 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -10 predicate places. [2021-03-26 10:35:22,220 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:22,220 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 26 transitions, 101 flow [2021-03-26 10:35:22,220 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 26 transitions, 101 flow [2021-03-26 10:35:22,220 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 26 transitions, 101 flow [2021-03-26 10:35:22,231 INFO L129 PetriNetUnfolder]: 19/85 cut-off events. [2021-03-26 10:35:22,231 INFO L130 PetriNetUnfolder]: For 95/117 co-relation queries the response was YES. [2021-03-26 10:35:22,231 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 10:35:22,232 INFO L142 LiptonReduction]: Number of co-enabled transitions 262 [2021-03-26 10:35:22,244 INFO L154 LiptonReduction]: Checked pairs total: 158 [2021-03-26 10:35:22,245 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:22,245 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-03-26 10:35:22,246 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 101 flow [2021-03-26 10:35:22,246 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 10:35:22,246 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:22,246 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:22,246 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 10:35:22,247 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 10:35:22,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:22,247 INFO L82 PathProgramCache]: Analyzing trace with hash -223841830, now seen corresponding path program 1 times [2021-03-26 10:35:22,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:22,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192399609] [2021-03-26 10:35:22,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:22,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:22,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:22,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:22,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:22,294 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 10:35:22,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192399609] [2021-03-26 10:35:22,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:22,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:35:22,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045458543] [2021-03-26 10:35:22,297 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:35:22,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:22,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:35:22,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:35:22,298 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 172 [2021-03-26 10:35:22,299 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 10:35:22,299 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:22,300 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 172 [2021-03-26 10:35:22,300 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:22,337 INFO L129 PetriNetUnfolder]: 28/136 cut-off events. [2021-03-26 10:35:22,337 INFO L130 PetriNetUnfolder]: For 264/340 co-relation queries the response was YES. [2021-03-26 10:35:22,337 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 10:35:22,338 INFO L132 encePairwiseOnDemand]: 167/172 looper letters, 4 selfloop transitions, 4 changer transitions 2/29 dead transitions. [2021-03-26 10:35:22,338 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 29 transitions, 138 flow [2021-03-26 10:35:22,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:35:22,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:35:22,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 587 transitions. [2021-03-26 10:35:22,341 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8531976744186046 [2021-03-26 10:35:22,341 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 587 transitions. [2021-03-26 10:35:22,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 587 transitions. [2021-03-26 10:35:22,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:22,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 587 transitions. [2021-03-26 10:35:22,343 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 10:35:22,344 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 10:35:22,344 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 10:35:22,344 INFO L185 Difference]: Start difference. First operand has 36 places, 26 transitions, 101 flow. Second operand 4 states and 587 transitions. [2021-03-26 10:35:22,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 29 transitions, 138 flow [2021-03-26 10:35:22,346 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 10:35:22,346 INFO L241 Difference]: Finished difference. Result has 39 places, 26 transitions, 109 flow [2021-03-26 10:35:22,346 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 10:35:22,347 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -7 predicate places. [2021-03-26 10:35:22,347 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:22,347 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 26 transitions, 109 flow [2021-03-26 10:35:22,347 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 26 transitions, 109 flow [2021-03-26 10:35:22,348 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 26 transitions, 109 flow [2021-03-26 10:35:22,358 INFO L129 PetriNetUnfolder]: 19/89 cut-off events. [2021-03-26 10:35:22,358 INFO L130 PetriNetUnfolder]: For 124/136 co-relation queries the response was YES. [2021-03-26 10:35:22,358 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 10:35:22,359 INFO L142 LiptonReduction]: Number of co-enabled transitions 242 [2021-03-26 10:35:22,366 INFO L154 LiptonReduction]: Checked pairs total: 137 [2021-03-26 10:35:22,367 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:22,367 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-03-26 10:35:22,367 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 26 transitions, 109 flow [2021-03-26 10:35:22,368 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 10:35:22,368 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:22,368 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:22,368 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 10:35:22,368 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 10:35:22,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:22,369 INFO L82 PathProgramCache]: Analyzing trace with hash 724751660, now seen corresponding path program 2 times [2021-03-26 10:35:22,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:22,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785271695] [2021-03-26 10:35:22,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:22,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:22,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:22,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:35:22,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:22,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:35:22,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:22,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:35:22,448 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 10:35:22,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785271695] [2021-03-26 10:35:22,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:22,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:35:22,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703853089] [2021-03-26 10:35:22,449 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:35:22,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:22,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:35:22,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:35:22,450 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 172 [2021-03-26 10:35:22,451 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 26 transitions, 109 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 10:35:22,451 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:22,451 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 172 [2021-03-26 10:35:22,451 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:22,550 INFO L129 PetriNetUnfolder]: 116/260 cut-off events. [2021-03-26 10:35:22,550 INFO L130 PetriNetUnfolder]: For 374/424 co-relation queries the response was YES. [2021-03-26 10:35:22,551 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 10:35:22,552 INFO L132 encePairwiseOnDemand]: 166/172 looper letters, 10 selfloop transitions, 8 changer transitions 0/33 dead transitions. [2021-03-26 10:35:22,553 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 33 transitions, 167 flow [2021-03-26 10:35:22,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:35:22,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:35:22,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 522 transitions. [2021-03-26 10:35:22,555 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7587209302325582 [2021-03-26 10:35:22,555 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 522 transitions. [2021-03-26 10:35:22,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 522 transitions. [2021-03-26 10:35:22,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:22,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 522 transitions. [2021-03-26 10:35:22,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 130.5) internal successors, (522), 4 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:22,558 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 10:35:22,558 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 10:35:22,558 INFO L185 Difference]: Start difference. First operand has 39 places, 26 transitions, 109 flow. Second operand 4 states and 522 transitions. [2021-03-26 10:35:22,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 33 transitions, 167 flow [2021-03-26 10:35:22,561 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 10:35:22,562 INFO L241 Difference]: Finished difference. Result has 41 places, 31 transitions, 155 flow [2021-03-26 10:35:22,562 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 10:35:22,562 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -5 predicate places. [2021-03-26 10:35:22,562 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:22,563 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 31 transitions, 155 flow [2021-03-26 10:35:22,563 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 31 transitions, 155 flow [2021-03-26 10:35:22,563 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 31 transitions, 155 flow [2021-03-26 10:35:22,576 INFO L129 PetriNetUnfolder]: 24/108 cut-off events. [2021-03-26 10:35:22,576 INFO L130 PetriNetUnfolder]: For 222/263 co-relation queries the response was YES. [2021-03-26 10:35:22,576 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 10:35:22,577 INFO L142 LiptonReduction]: Number of co-enabled transitions 296 [2021-03-26 10:35:22,639 INFO L154 LiptonReduction]: Checked pairs total: 132 [2021-03-26 10:35:22,639 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:22,639 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 77 [2021-03-26 10:35:22,640 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 31 transitions, 155 flow [2021-03-26 10:35:22,640 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 10:35:22,640 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:22,640 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:22,640 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 10:35:22,641 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 10:35:22,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:22,641 INFO L82 PathProgramCache]: Analyzing trace with hash 724750606, now seen corresponding path program 1 times [2021-03-26 10:35:22,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:22,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936952907] [2021-03-26 10:35:22,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:22,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:22,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:22,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:35:22,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:22,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:35:22,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:22,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:35:22,723 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 10:35:22,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936952907] [2021-03-26 10:35:22,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:22,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:35:22,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497623864] [2021-03-26 10:35:22,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:35:22,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:22,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:35:22,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:35:22,725 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 172 [2021-03-26 10:35:22,725 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 155 flow. Second operand has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 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 10:35:22,725 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:22,726 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 172 [2021-03-26 10:35:22,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:22,803 INFO L129 PetriNetUnfolder]: 121/269 cut-off events. [2021-03-26 10:35:22,804 INFO L130 PetriNetUnfolder]: For 557/664 co-relation queries the response was YES. [2021-03-26 10:35:22,805 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 10:35:22,806 INFO L132 encePairwiseOnDemand]: 165/172 looper letters, 14 selfloop transitions, 10 changer transitions 0/39 dead transitions. [2021-03-26 10:35:22,806 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 39 transitions, 243 flow [2021-03-26 10:35:22,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:35:22,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:35:22,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 546 transitions. [2021-03-26 10:35:22,809 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7936046511627907 [2021-03-26 10:35:22,809 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 546 transitions. [2021-03-26 10:35:22,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 546 transitions. [2021-03-26 10:35:22,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:22,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 546 transitions. [2021-03-26 10:35:22,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 136.5) internal successors, (546), 4 states have internal predecessors, (546), 0 states have call successors, (0), 0 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 10:35:22,811 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 10:35:22,812 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 10:35:22,812 INFO L185 Difference]: Start difference. First operand has 41 places, 31 transitions, 155 flow. Second operand 4 states and 546 transitions. [2021-03-26 10:35:22,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 39 transitions, 243 flow [2021-03-26 10:35:22,814 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 10:35:22,815 INFO L241 Difference]: Finished difference. Result has 45 places, 35 transitions, 201 flow [2021-03-26 10:35:22,815 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 10:35:22,816 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2021-03-26 10:35:22,816 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:22,816 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 35 transitions, 201 flow [2021-03-26 10:35:22,816 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 35 transitions, 201 flow [2021-03-26 10:35:22,816 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 35 transitions, 201 flow [2021-03-26 10:35:22,844 INFO L129 PetriNetUnfolder]: 86/222 cut-off events. [2021-03-26 10:35:22,844 INFO L130 PetriNetUnfolder]: For 617/659 co-relation queries the response was YES. [2021-03-26 10:35:22,845 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 10:35:22,847 INFO L142 LiptonReduction]: Number of co-enabled transitions 302 [2021-03-26 10:35:22,853 INFO L154 LiptonReduction]: Checked pairs total: 63 [2021-03-26 10:35:22,854 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:22,854 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-03-26 10:35:22,854 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 201 flow [2021-03-26 10:35:22,855 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 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 10:35:22,855 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:22,855 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:22,855 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 10:35:22,855 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 10:35:22,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:22,855 INFO L82 PathProgramCache]: Analyzing trace with hash 700346476, now seen corresponding path program 2 times [2021-03-26 10:35:22,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:22,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645246055] [2021-03-26 10:35:22,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:22,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:22,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:35:22,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:22,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 10:35:22,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:22,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:35:22,959 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 10:35:22,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645246055] [2021-03-26 10:35:22,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:22,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:35:22,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356441436] [2021-03-26 10:35:22,960 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:35:22,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:22,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:35:22,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:35:22,965 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 172 [2021-03-26 10:35:22,965 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 10:35:22,965 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:22,965 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 172 [2021-03-26 10:35:22,965 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:23,081 INFO L129 PetriNetUnfolder]: 114/266 cut-off events. [2021-03-26 10:35:23,081 INFO L130 PetriNetUnfolder]: For 781/862 co-relation queries the response was YES. [2021-03-26 10:35:23,082 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 10:35:23,083 INFO L132 encePairwiseOnDemand]: 165/172 looper letters, 11 selfloop transitions, 17 changer transitions 2/45 dead transitions. [2021-03-26 10:35:23,083 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 45 transitions, 317 flow [2021-03-26 10:35:23,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:35:23,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:35:23,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 654 transitions. [2021-03-26 10:35:23,086 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7604651162790698 [2021-03-26 10:35:23,087 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 654 transitions. [2021-03-26 10:35:23,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 654 transitions. [2021-03-26 10:35:23,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:23,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 654 transitions. [2021-03-26 10:35:23,088 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 10:35:23,090 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 10:35:23,090 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 10:35:23,090 INFO L185 Difference]: Start difference. First operand has 45 places, 35 transitions, 201 flow. Second operand 5 states and 654 transitions. [2021-03-26 10:35:23,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 45 transitions, 317 flow [2021-03-26 10:35:23,092 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 10:35:23,095 INFO L241 Difference]: Finished difference. Result has 51 places, 41 transitions, 297 flow [2021-03-26 10:35:23,095 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 10:35:23,095 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 5 predicate places. [2021-03-26 10:35:23,095 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:23,095 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 41 transitions, 297 flow [2021-03-26 10:35:23,096 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 41 transitions, 297 flow [2021-03-26 10:35:23,096 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 41 transitions, 297 flow [2021-03-26 10:35:23,147 INFO L129 PetriNetUnfolder]: 72/223 cut-off events. [2021-03-26 10:35:23,147 INFO L130 PetriNetUnfolder]: For 1153/1237 co-relation queries the response was YES. [2021-03-26 10:35:23,148 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 10:35:23,150 INFO L142 LiptonReduction]: Number of co-enabled transitions 334 [2021-03-26 10:35:23,165 INFO L154 LiptonReduction]: Checked pairs total: 119 [2021-03-26 10:35:23,165 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:23,165 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 70 [2021-03-26 10:35:23,166 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 41 transitions, 297 flow [2021-03-26 10:35:23,166 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 10:35:23,166 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:23,166 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:23,166 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 10:35:23,166 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 10:35:23,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:23,167 INFO L82 PathProgramCache]: Analyzing trace with hash 2016943268, now seen corresponding path program 1 times [2021-03-26 10:35:23,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:23,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131608837] [2021-03-26 10:35:23,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:23,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:23,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:23,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:35:23,265 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.3 percent of original size [2021-03-26 10:35:23,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-26 10:35:23,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:23,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 10:35:23,293 INFO L142 QuantifierPusher]: treesize reduction 10, result has 84.1 percent of original size [2021-03-26 10:35:23,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 10:35:23,315 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 10:35:23,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131608837] [2021-03-26 10:35:23,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:23,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:35:23,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391272623] [2021-03-26 10:35:23,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:35:23,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:23,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:35:23,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:35:23,318 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 172 [2021-03-26 10:35:23,318 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 41 transitions, 297 flow. Second operand has 5 states, 5 states have (on average 126.0) internal successors, (630), 5 states have internal predecessors, (630), 0 states have call successors, (0), 0 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 10:35:23,318 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:23,318 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 172 [2021-03-26 10:35:23,319 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:23,429 INFO L129 PetriNetUnfolder]: 106/249 cut-off events. [2021-03-26 10:35:23,430 INFO L130 PetriNetUnfolder]: For 1154/1229 co-relation queries the response was YES. [2021-03-26 10:35:23,431 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1094 conditions, 249 events. 106/249 cut-off events. For 1154/1229 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1193 event pairs, 37 based on Foata normal form. 19/260 useless extension candidates. Maximal degree in co-relation 1070. Up to 175 conditions per place. [2021-03-26 10:35:23,432 INFO L132 encePairwiseOnDemand]: 167/172 looper letters, 21 selfloop transitions, 9 changer transitions 0/45 dead transitions. [2021-03-26 10:35:23,432 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 45 transitions, 377 flow [2021-03-26 10:35:23,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:35:23,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:35:23,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 517 transitions. [2021-03-26 10:35:23,435 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.751453488372093 [2021-03-26 10:35:23,435 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 517 transitions. [2021-03-26 10:35:23,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 517 transitions. [2021-03-26 10:35:23,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:23,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 517 transitions. [2021-03-26 10:35:23,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 129.25) internal successors, (517), 4 states have internal predecessors, (517), 0 states have call successors, (0), 0 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 10:35:23,438 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 10:35:23,438 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 10:35:23,438 INFO L185 Difference]: Start difference. First operand has 51 places, 41 transitions, 297 flow. Second operand 4 states and 517 transitions. [2021-03-26 10:35:23,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 45 transitions, 377 flow [2021-03-26 10:35:23,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 45 transitions, 367 flow, removed 5 selfloop flow, removed 0 redundant places. [2021-03-26 10:35:23,443 INFO L241 Difference]: Finished difference. Result has 55 places, 43 transitions, 329 flow [2021-03-26 10:35:23,444 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=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=329, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2021-03-26 10:35:23,444 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 9 predicate places. [2021-03-26 10:35:23,444 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:23,444 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 43 transitions, 329 flow [2021-03-26 10:35:23,445 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 43 transitions, 329 flow [2021-03-26 10:35:23,445 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 43 transitions, 329 flow [2021-03-26 10:35:23,470 INFO L129 PetriNetUnfolder]: 70/214 cut-off events. [2021-03-26 10:35:23,470 INFO L130 PetriNetUnfolder]: For 1320/1396 co-relation queries the response was YES. [2021-03-26 10:35:23,471 INFO L84 FinitePrefix]: Finished finitePrefix Result has 859 conditions, 214 events. 70/214 cut-off events. For 1320/1396 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1203 event pairs, 22 based on Foata normal form. 5/205 useless extension candidates. Maximal degree in co-relation 834. Up to 93 conditions per place. [2021-03-26 10:35:23,472 INFO L142 LiptonReduction]: Number of co-enabled transitions 348 [2021-03-26 10:35:23,482 INFO L154 LiptonReduction]: Checked pairs total: 127 [2021-03-26 10:35:23,482 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:23,483 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-03-26 10:35:23,484 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 329 flow [2021-03-26 10:35:23,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 126.0) internal successors, (630), 5 states have internal predecessors, (630), 0 states have call successors, (0), 0 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 10:35:23,484 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:23,484 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:23,484 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 10:35:23,484 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 10:35:23,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:23,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1028598639, now seen corresponding path program 1 times [2021-03-26 10:35:23,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:23,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296047122] [2021-03-26 10:35:23,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:23,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:23,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:35:23,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:23,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:23,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:23,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:23,535 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 10:35:23,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296047122] [2021-03-26 10:35:23,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:23,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:35:23,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216851568] [2021-03-26 10:35:23,535 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:35:23,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:23,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:35:23,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:35:23,537 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 172 [2021-03-26 10:35:23,537 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 329 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 10:35:23,537 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:23,537 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 172 [2021-03-26 10:35:23,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:23,598 INFO L129 PetriNetUnfolder]: 122/311 cut-off events. [2021-03-26 10:35:23,599 INFO L130 PetriNetUnfolder]: For 2394/2540 co-relation queries the response was YES. [2021-03-26 10:35:23,600 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1246 conditions, 311 events. 122/311 cut-off events. For 2394/2540 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 1805 event pairs, 49 based on Foata normal form. 26/306 useless extension candidates. Maximal degree in co-relation 1219. Up to 155 conditions per place. [2021-03-26 10:35:23,601 INFO L132 encePairwiseOnDemand]: 168/172 looper letters, 4 selfloop transitions, 3 changer transitions 2/45 dead transitions. [2021-03-26 10:35:23,602 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 45 transitions, 355 flow [2021-03-26 10:35:23,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:35:23,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:35:23,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 729 transitions. [2021-03-26 10:35:23,606 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8476744186046512 [2021-03-26 10:35:23,606 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 729 transitions. [2021-03-26 10:35:23,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 729 transitions. [2021-03-26 10:35:23,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:23,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 729 transitions. [2021-03-26 10:35:23,608 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 10:35:23,609 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 10:35:23,609 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 10:35:23,609 INFO L185 Difference]: Start difference. First operand has 55 places, 43 transitions, 329 flow. Second operand 5 states and 729 transitions. [2021-03-26 10:35:23,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 45 transitions, 355 flow [2021-03-26 10:35:23,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 45 transitions, 339 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-26 10:35:23,614 INFO L241 Difference]: Finished difference. Result has 59 places, 43 transitions, 326 flow [2021-03-26 10:35:23,614 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=326, PETRI_PLACES=59, PETRI_TRANSITIONS=43} [2021-03-26 10:35:23,614 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 13 predicate places. [2021-03-26 10:35:23,614 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:23,614 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 43 transitions, 326 flow [2021-03-26 10:35:23,614 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 43 transitions, 326 flow [2021-03-26 10:35:23,615 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 43 transitions, 326 flow [2021-03-26 10:35:23,642 INFO L129 PetriNetUnfolder]: 72/221 cut-off events. [2021-03-26 10:35:23,642 INFO L130 PetriNetUnfolder]: For 1560/1648 co-relation queries the response was YES. [2021-03-26 10:35:23,643 INFO L84 FinitePrefix]: Finished finitePrefix Result has 899 conditions, 221 events. 72/221 cut-off events. For 1560/1648 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1234 event pairs, 17 based on Foata normal form. 7/211 useless extension candidates. Maximal degree in co-relation 873. Up to 96 conditions per place. [2021-03-26 10:35:23,645 INFO L142 LiptonReduction]: Number of co-enabled transitions 330 [2021-03-26 10:35:23,715 INFO L154 LiptonReduction]: Checked pairs total: 239 [2021-03-26 10:35:23,715 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 10:35:23,715 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 101 [2021-03-26 10:35:23,717 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 43 transitions, 334 flow [2021-03-26 10:35:23,718 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 10:35:23,718 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:23,718 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:23,719 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 10:35:23,719 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 10:35:23,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:23,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1897995520, now seen corresponding path program 1 times [2021-03-26 10:35:23,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:23,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585005918] [2021-03-26 10:35:23,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:23,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:23,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:35:23,817 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.3 percent of original size [2021-03-26 10:35:23,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-26 10:35:23,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:23,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 10:35:23,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:23,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 10:35:23,878 INFO L142 QuantifierPusher]: treesize reduction 10, result has 85.1 percent of original size [2021-03-26 10:35:23,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-26 10:35:23,903 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 10:35:23,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585005918] [2021-03-26 10:35:23,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:23,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:35:23,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344580344] [2021-03-26 10:35:23,904 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:35:23,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:23,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:35:23,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:35:23,905 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 174 [2021-03-26 10:35:23,906 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 43 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:23,906 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:23,906 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 174 [2021-03-26 10:35:23,906 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:24,039 INFO L129 PetriNetUnfolder]: 130/322 cut-off events. [2021-03-26 10:35:24,039 INFO L130 PetriNetUnfolder]: For 1690/1790 co-relation queries the response was YES. [2021-03-26 10:35:24,040 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1434 conditions, 322 events. 130/322 cut-off events. For 1690/1790 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1868 event pairs, 10 based on Foata normal form. 18/331 useless extension candidates. Maximal degree in co-relation 1406. Up to 173 conditions per place. [2021-03-26 10:35:24,042 INFO L132 encePairwiseOnDemand]: 168/174 looper letters, 22 selfloop transitions, 13 changer transitions 1/51 dead transitions. [2021-03-26 10:35:24,042 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 51 transitions, 461 flow [2021-03-26 10:35:24,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:35:24,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:35:24,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 638 transitions. [2021-03-26 10:35:24,044 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2021-03-26 10:35:24,044 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 638 transitions. [2021-03-26 10:35:24,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 638 transitions. [2021-03-26 10:35:24,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:24,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 638 transitions. [2021-03-26 10:35:24,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 127.6) internal successors, (638), 5 states have internal predecessors, (638), 0 states have call successors, (0), 0 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 10:35:24,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 0 states have call successors, (0), 0 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 10:35:24,049 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 0 states have call successors, (0), 0 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 10:35:24,049 INFO L185 Difference]: Start difference. First operand has 57 places, 43 transitions, 334 flow. Second operand 5 states and 638 transitions. [2021-03-26 10:35:24,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 51 transitions, 461 flow [2021-03-26 10:35:24,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 51 transitions, 453 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-26 10:35:24,053 INFO L241 Difference]: Finished difference. Result has 59 places, 46 transitions, 388 flow [2021-03-26 10:35:24,054 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=388, PETRI_PLACES=59, PETRI_TRANSITIONS=46} [2021-03-26 10:35:24,054 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 13 predicate places. [2021-03-26 10:35:24,054 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:24,054 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 46 transitions, 388 flow [2021-03-26 10:35:24,054 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 46 transitions, 388 flow [2021-03-26 10:35:24,054 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 46 transitions, 388 flow [2021-03-26 10:35:24,084 INFO L129 PetriNetUnfolder]: 88/248 cut-off events. [2021-03-26 10:35:24,084 INFO L130 PetriNetUnfolder]: For 1435/1513 co-relation queries the response was YES. [2021-03-26 10:35:24,086 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1083 conditions, 248 events. 88/248 cut-off events. For 1435/1513 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1400 event pairs, 17 based on Foata normal form. 6/230 useless extension candidates. Maximal degree in co-relation 1056. Up to 121 conditions per place. [2021-03-26 10:35:24,088 INFO L142 LiptonReduction]: Number of co-enabled transitions 352 [2021-03-26 10:35:24,101 INFO L154 LiptonReduction]: Checked pairs total: 119 [2021-03-26 10:35:24,101 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:24,101 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47 [2021-03-26 10:35:24,102 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 46 transitions, 388 flow [2021-03-26 10:35:24,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:24,103 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:24,103 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:24,103 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-26 10:35:24,103 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 10:35:24,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:24,103 INFO L82 PathProgramCache]: Analyzing trace with hash 993982864, now seen corresponding path program 1 times [2021-03-26 10:35:24,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:24,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503190580] [2021-03-26 10:35:24,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:24,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:24,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:24,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:35:24,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:24,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:35:24,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:24,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:35:24,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:24,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 10:35:24,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:24,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:35:24,205 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 10:35:24,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503190580] [2021-03-26 10:35:24,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:24,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:35:24,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407776584] [2021-03-26 10:35:24,206 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:35:24,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:24,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:35:24,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:35:24,207 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 174 [2021-03-26 10:35:24,208 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 46 transitions, 388 flow. Second operand has 6 states, 6 states have (on average 126.0) internal successors, (756), 6 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:24,208 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:24,208 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 174 [2021-03-26 10:35:24,208 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:24,416 INFO L129 PetriNetUnfolder]: 127/304 cut-off events. [2021-03-26 10:35:24,417 INFO L130 PetriNetUnfolder]: For 1770/1869 co-relation queries the response was YES. [2021-03-26 10:35:24,418 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1522 conditions, 304 events. 127/304 cut-off events. For 1770/1869 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1607 event pairs, 29 based on Foata normal form. 31/325 useless extension candidates. Maximal degree in co-relation 1493. Up to 193 conditions per place. [2021-03-26 10:35:24,419 INFO L132 encePairwiseOnDemand]: 165/174 looper letters, 20 selfloop transitions, 23 changer transitions 6/64 dead transitions. [2021-03-26 10:35:24,419 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 64 transitions, 630 flow [2021-03-26 10:35:24,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 10:35:24,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 10:35:24,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1031 transitions. [2021-03-26 10:35:24,422 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7406609195402298 [2021-03-26 10:35:24,422 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1031 transitions. [2021-03-26 10:35:24,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1031 transitions. [2021-03-26 10:35:24,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:24,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1031 transitions. [2021-03-26 10:35:24,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 128.875) internal successors, (1031), 8 states have internal predecessors, (1031), 0 states have call successors, (0), 0 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 10:35:24,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 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 10:35:24,428 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 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 10:35:24,428 INFO L185 Difference]: Start difference. First operand has 59 places, 46 transitions, 388 flow. Second operand 8 states and 1031 transitions. [2021-03-26 10:35:24,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 64 transitions, 630 flow [2021-03-26 10:35:24,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 64 transitions, 619 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 10:35:24,433 INFO L241 Difference]: Finished difference. Result has 67 places, 53 transitions, 513 flow [2021-03-26 10:35:24,433 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=513, PETRI_PLACES=67, PETRI_TRANSITIONS=53} [2021-03-26 10:35:24,433 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 21 predicate places. [2021-03-26 10:35:24,433 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:24,433 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 53 transitions, 513 flow [2021-03-26 10:35:24,434 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 53 transitions, 513 flow [2021-03-26 10:35:24,434 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 53 transitions, 513 flow [2021-03-26 10:35:24,466 INFO L129 PetriNetUnfolder]: 84/238 cut-off events. [2021-03-26 10:35:24,466 INFO L130 PetriNetUnfolder]: For 1785/1962 co-relation queries the response was YES. [2021-03-26 10:35:24,467 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1171 conditions, 238 events. 84/238 cut-off events. For 1785/1962 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1292 event pairs, 13 based on Foata normal form. 9/222 useless extension candidates. Maximal degree in co-relation 1141. Up to 119 conditions per place. [2021-03-26 10:35:24,469 INFO L142 LiptonReduction]: Number of co-enabled transitions 374 [2021-03-26 10:35:24,483 INFO L154 LiptonReduction]: Checked pairs total: 289 [2021-03-26 10:35:24,483 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:24,483 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 50 [2021-03-26 10:35:24,483 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 53 transitions, 513 flow [2021-03-26 10:35:24,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 126.0) internal successors, (756), 6 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:24,484 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:24,484 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:24,484 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-26 10:35:24,484 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 10:35:24,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:24,484 INFO L82 PathProgramCache]: Analyzing trace with hash -185360633, now seen corresponding path program 1 times [2021-03-26 10:35:24,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:24,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451558769] [2021-03-26 10:35:24,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:24,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:24,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:35:24,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:24,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:35:24,576 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.3 percent of original size [2021-03-26 10:35:24,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-26 10:35:24,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:24,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:35:24,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:24,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 10:35:24,627 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 10:35:24,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451558769] [2021-03-26 10:35:24,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:24,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:35:24,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083845745] [2021-03-26 10:35:24,628 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 10:35:24,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:24,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 10:35:24,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-26 10:35:24,630 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 174 [2021-03-26 10:35:24,630 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 53 transitions, 513 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 10:35:24,631 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:24,631 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 174 [2021-03-26 10:35:24,631 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:24,791 INFO L129 PetriNetUnfolder]: 114/294 cut-off events. [2021-03-26 10:35:24,791 INFO L130 PetriNetUnfolder]: For 1894/2016 co-relation queries the response was YES. [2021-03-26 10:35:24,793 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1565 conditions, 294 events. 114/294 cut-off events. For 1894/2016 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1642 event pairs, 40 based on Foata normal form. 14/296 useless extension candidates. Maximal degree in co-relation 1533. Up to 194 conditions per place. [2021-03-26 10:35:24,795 INFO L132 encePairwiseOnDemand]: 165/174 looper letters, 28 selfloop transitions, 15 changer transitions 1/59 dead transitions. [2021-03-26 10:35:24,795 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 59 transitions, 654 flow [2021-03-26 10:35:24,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:35:24,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:35:24,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 642 transitions. [2021-03-26 10:35:24,797 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7379310344827587 [2021-03-26 10:35:24,798 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 642 transitions. [2021-03-26 10:35:24,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 642 transitions. [2021-03-26 10:35:24,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:24,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 642 transitions. [2021-03-26 10:35:24,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 0 states have call successors, (0), 0 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 10:35:24,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 0 states have call successors, (0), 0 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 10:35:24,801 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 0 states have call successors, (0), 0 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 10:35:24,801 INFO L185 Difference]: Start difference. First operand has 67 places, 53 transitions, 513 flow. Second operand 5 states and 642 transitions. [2021-03-26 10:35:24,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 59 transitions, 654 flow [2021-03-26 10:35:24,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 59 transitions, 634 flow, removed 8 selfloop flow, removed 1 redundant places. [2021-03-26 10:35:24,810 INFO L241 Difference]: Finished difference. Result has 71 places, 55 transitions, 557 flow [2021-03-26 10:35:24,810 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=497, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=557, PETRI_PLACES=71, PETRI_TRANSITIONS=55} [2021-03-26 10:35:24,810 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 25 predicate places. [2021-03-26 10:35:24,810 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:24,811 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 55 transitions, 557 flow [2021-03-26 10:35:24,811 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 55 transitions, 557 flow [2021-03-26 10:35:24,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 55 transitions, 557 flow [2021-03-26 10:35:24,848 INFO L129 PetriNetUnfolder]: 85/243 cut-off events. [2021-03-26 10:35:24,848 INFO L130 PetriNetUnfolder]: For 2061/2210 co-relation queries the response was YES. [2021-03-26 10:35:24,849 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1246 conditions, 243 events. 85/243 cut-off events. For 2061/2210 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1346 event pairs, 15 based on Foata normal form. 9/226 useless extension candidates. Maximal degree in co-relation 1214. Up to 123 conditions per place. [2021-03-26 10:35:24,852 INFO L142 LiptonReduction]: Number of co-enabled transitions 384 [2021-03-26 10:35:24,867 INFO L154 LiptonReduction]: Checked pairs total: 306 [2021-03-26 10:35:24,867 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:24,867 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-03-26 10:35:24,868 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 55 transitions, 557 flow [2021-03-26 10:35:24,869 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 10:35:24,869 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:24,869 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:24,869 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-26 10:35:24,869 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 10:35:24,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:24,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1815320393, now seen corresponding path program 2 times [2021-03-26 10:35:24,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:24,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233733698] [2021-03-26 10:35:24,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:24,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:24,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:35:24,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:24,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 10:35:24,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:24,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 10:35:24,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:24,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 10:35:24,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:24,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:35:25,010 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 10:35:25,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233733698] [2021-03-26 10:35:25,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:25,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:35:25,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049418529] [2021-03-26 10:35:25,010 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 10:35:25,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:25,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 10:35:25,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 10:35:25,012 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 174 [2021-03-26 10:35:25,013 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 55 transitions, 557 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 10:35:25,013 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:25,013 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 174 [2021-03-26 10:35:25,013 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:25,193 INFO L129 PetriNetUnfolder]: 111/305 cut-off events. [2021-03-26 10:35:25,193 INFO L130 PetriNetUnfolder]: For 2173/2282 co-relation queries the response was YES. [2021-03-26 10:35:25,195 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1619 conditions, 305 events. 111/305 cut-off events. For 2173/2282 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1844 event pairs, 14 based on Foata normal form. 35/332 useless extension candidates. Maximal degree in co-relation 1585. Up to 148 conditions per place. [2021-03-26 10:35:25,196 INFO L132 encePairwiseOnDemand]: 166/174 looper letters, 18 selfloop transitions, 23 changer transitions 4/60 dead transitions. [2021-03-26 10:35:25,196 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 60 transitions, 688 flow [2021-03-26 10:35:25,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:35:25,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:35:25,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 642 transitions. [2021-03-26 10:35:25,199 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7379310344827587 [2021-03-26 10:35:25,199 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 642 transitions. [2021-03-26 10:35:25,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 642 transitions. [2021-03-26 10:35:25,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:25,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 642 transitions. [2021-03-26 10:35:25,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 0 states have call successors, (0), 0 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 10:35:25,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 0 states have call successors, (0), 0 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 10:35:25,203 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 0 states have call successors, (0), 0 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 10:35:25,203 INFO L185 Difference]: Start difference. First operand has 71 places, 55 transitions, 557 flow. Second operand 5 states and 642 transitions. [2021-03-26 10:35:25,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 60 transitions, 688 flow [2021-03-26 10:35:25,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 60 transitions, 659 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-26 10:35:25,211 INFO L241 Difference]: Finished difference. Result has 73 places, 54 transitions, 587 flow [2021-03-26 10:35:25,211 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=587, PETRI_PLACES=73, PETRI_TRANSITIONS=54} [2021-03-26 10:35:25,211 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 27 predicate places. [2021-03-26 10:35:25,211 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:25,212 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 54 transitions, 587 flow [2021-03-26 10:35:25,212 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 54 transitions, 587 flow [2021-03-26 10:35:25,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 54 transitions, 587 flow [2021-03-26 10:35:25,242 INFO L129 PetriNetUnfolder]: 79/229 cut-off events. [2021-03-26 10:35:25,242 INFO L130 PetriNetUnfolder]: For 1977/2103 co-relation queries the response was YES. [2021-03-26 10:35:25,244 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1236 conditions, 229 events. 79/229 cut-off events. For 1977/2103 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1255 event pairs, 25 based on Foata normal form. 7/213 useless extension candidates. Maximal degree in co-relation 1203. Up to 116 conditions per place. [2021-03-26 10:35:25,246 INFO L142 LiptonReduction]: Number of co-enabled transitions 378 [2021-03-26 10:35:25,259 INFO L154 LiptonReduction]: Checked pairs total: 272 [2021-03-26 10:35:25,259 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:25,259 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 48 [2021-03-26 10:35:25,262 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 54 transitions, 587 flow [2021-03-26 10:35:25,262 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 10:35:25,262 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:25,262 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:25,262 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-26 10:35:25,262 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 10:35:25,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:25,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1082582437, now seen corresponding path program 2 times [2021-03-26 10:35:25,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:25,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054801622] [2021-03-26 10:35:25,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:25,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:25,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:25,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:25,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:25,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:25,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:25,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:35:25,308 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 10:35:25,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054801622] [2021-03-26 10:35:25,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:25,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:35:25,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258402423] [2021-03-26 10:35:25,311 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:35:25,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:25,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:35:25,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:35:25,312 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 174 [2021-03-26 10:35:25,313 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 54 transitions, 587 flow. Second operand has 4 states, 4 states have (on average 140.75) internal successors, (563), 4 states have internal predecessors, (563), 0 states have call successors, (0), 0 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 10:35:25,313 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:25,313 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 174 [2021-03-26 10:35:25,313 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:25,419 INFO L129 PetriNetUnfolder]: 247/565 cut-off events. [2021-03-26 10:35:25,420 INFO L130 PetriNetUnfolder]: For 3236/3372 co-relation queries the response was YES. [2021-03-26 10:35:25,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2137 conditions, 565 events. 247/565 cut-off events. For 3236/3372 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 3644 event pairs, 67 based on Foata normal form. 102/568 useless extension candidates. Maximal degree in co-relation 2102. Up to 329 conditions per place. [2021-03-26 10:35:25,426 INFO L132 encePairwiseOnDemand]: 168/174 looper letters, 11 selfloop transitions, 8 changer transitions 0/60 dead transitions. [2021-03-26 10:35:25,426 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 60 transitions, 585 flow [2021-03-26 10:35:25,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:35:25,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:35:25,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 720 transitions. [2021-03-26 10:35:25,429 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8275862068965517 [2021-03-26 10:35:25,429 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 720 transitions. [2021-03-26 10:35:25,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 720 transitions. [2021-03-26 10:35:25,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:25,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 720 transitions. [2021-03-26 10:35:25,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 0 states have call successors, (0), 0 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 10:35:25,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 0 states have call successors, (0), 0 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 10:35:25,432 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 0 states have call successors, (0), 0 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 10:35:25,432 INFO L185 Difference]: Start difference. First operand has 73 places, 54 transitions, 587 flow. Second operand 5 states and 720 transitions. [2021-03-26 10:35:25,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 60 transitions, 585 flow [2021-03-26 10:35:25,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 60 transitions, 518 flow, removed 7 selfloop flow, removed 8 redundant places. [2021-03-26 10:35:25,439 INFO L241 Difference]: Finished difference. Result has 72 places, 56 transitions, 522 flow [2021-03-26 10:35:25,439 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=65, 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=522, PETRI_PLACES=72, PETRI_TRANSITIONS=56} [2021-03-26 10:35:25,439 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 26 predicate places. [2021-03-26 10:35:25,439 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:25,439 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 56 transitions, 522 flow [2021-03-26 10:35:25,439 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 56 transitions, 522 flow [2021-03-26 10:35:25,441 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 56 transitions, 522 flow [2021-03-26 10:35:25,518 INFO L129 PetriNetUnfolder]: 184/466 cut-off events. [2021-03-26 10:35:25,518 INFO L130 PetriNetUnfolder]: For 3006/3188 co-relation queries the response was YES. [2021-03-26 10:35:25,521 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2051 conditions, 466 events. 184/466 cut-off events. For 3006/3188 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 3008 event pairs, 56 based on Foata normal form. 44/479 useless extension candidates. Maximal degree in co-relation 2019. Up to 220 conditions per place. [2021-03-26 10:35:25,526 INFO L142 LiptonReduction]: Number of co-enabled transitions 472 [2021-03-26 10:35:25,533 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:35:25,533 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:25,533 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 94 [2021-03-26 10:35:25,534 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 56 transitions, 522 flow [2021-03-26 10:35:25,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 140.75) internal successors, (563), 4 states have internal predecessors, (563), 0 states have call successors, (0), 0 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 10:35:25,534 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:25,534 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:25,534 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-26 10:35:25,534 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 10:35:25,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:25,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1475341766, now seen corresponding path program 1 times [2021-03-26 10:35:25,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:25,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586952456] [2021-03-26 10:35:25,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:25,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:25,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:25,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:25,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:25,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:25,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:25,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:25,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:35:25,590 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 10:35:25,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586952456] [2021-03-26 10:35:25,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:25,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:35:25,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283525011] [2021-03-26 10:35:25,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:35:25,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:25,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:35:25,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:35:25,593 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 174 [2021-03-26 10:35:25,593 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 56 transitions, 522 flow. Second operand has 5 states, 5 states have (on average 140.8) internal successors, (704), 5 states have internal predecessors, (704), 0 states have call successors, (0), 0 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 10:35:25,593 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:25,594 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 174 [2021-03-26 10:35:25,594 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:25,708 INFO L129 PetriNetUnfolder]: 160/427 cut-off events. [2021-03-26 10:35:25,708 INFO L130 PetriNetUnfolder]: For 1848/2490 co-relation queries the response was YES. [2021-03-26 10:35:25,711 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1830 conditions, 427 events. 160/427 cut-off events. For 1848/2490 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 2834 event pairs, 11 based on Foata normal form. 223/602 useless extension candidates. Maximal degree in co-relation 1796. Up to 242 conditions per place. [2021-03-26 10:35:25,713 INFO L132 encePairwiseOnDemand]: 168/174 looper letters, 8 selfloop transitions, 15 changer transitions 3/66 dead transitions. [2021-03-26 10:35:25,713 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 66 transitions, 617 flow [2021-03-26 10:35:25,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:35:25,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:35:25,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1008 transitions. [2021-03-26 10:35:25,716 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8275862068965517 [2021-03-26 10:35:25,716 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1008 transitions. [2021-03-26 10:35:25,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1008 transitions. [2021-03-26 10:35:25,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:25,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1008 transitions. [2021-03-26 10:35:25,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 144.0) internal successors, (1008), 7 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:25,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 174.0) internal successors, (1392), 8 states have internal predecessors, (1392), 0 states have call successors, (0), 0 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 10:35:25,721 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 174.0) internal successors, (1392), 8 states have internal predecessors, (1392), 0 states have call successors, (0), 0 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 10:35:25,721 INFO L185 Difference]: Start difference. First operand has 72 places, 56 transitions, 522 flow. Second operand 7 states and 1008 transitions. [2021-03-26 10:35:25,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 66 transitions, 617 flow [2021-03-26 10:35:25,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 66 transitions, 575 flow, removed 8 selfloop flow, removed 5 redundant places. [2021-03-26 10:35:25,726 INFO L241 Difference]: Finished difference. Result has 76 places, 61 transitions, 560 flow [2021-03-26 10:35:25,726 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=560, PETRI_PLACES=76, PETRI_TRANSITIONS=61} [2021-03-26 10:35:25,727 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 30 predicate places. [2021-03-26 10:35:25,727 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:25,727 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 61 transitions, 560 flow [2021-03-26 10:35:25,727 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 61 transitions, 560 flow [2021-03-26 10:35:25,728 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 61 transitions, 560 flow [2021-03-26 10:35:25,765 INFO L129 PetriNetUnfolder]: 91/312 cut-off events. [2021-03-26 10:35:25,766 INFO L130 PetriNetUnfolder]: For 1674/2022 co-relation queries the response was YES. [2021-03-26 10:35:25,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1516 conditions, 312 events. 91/312 cut-off events. For 1674/2022 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2079 event pairs, 6 based on Foata normal form. 12/309 useless extension candidates. Maximal degree in co-relation 1483. Up to 167 conditions per place. [2021-03-26 10:35:25,771 INFO L142 LiptonReduction]: Number of co-enabled transitions 506 [2021-03-26 10:35:25,788 INFO L154 LiptonReduction]: Checked pairs total: 54 [2021-03-26 10:35:25,788 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 10:35:25,788 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 61 [2021-03-26 10:35:25,788 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 59 transitions, 544 flow [2021-03-26 10:35:25,789 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 140.8) internal successors, (704), 5 states have internal predecessors, (704), 0 states have call successors, (0), 0 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 10:35:25,789 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:25,789 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:25,789 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-26 10:35:25,789 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 10:35:25,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:25,790 INFO L82 PathProgramCache]: Analyzing trace with hash -631202162, now seen corresponding path program 1 times [2021-03-26 10:35:25,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:25,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157879551] [2021-03-26 10:35:25,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:25,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:25,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:25,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 10:35:25,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:25,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 10:35:25,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:25,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:35:25,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:25,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 10:35:25,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:25,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:35:25,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:25,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 10:35:25,960 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 10:35:25,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157879551] [2021-03-26 10:35:25,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:25,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 10:35:25,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870852260] [2021-03-26 10:35:25,960 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 10:35:25,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:25,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 10:35:25,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-26 10:35:25,962 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 174 [2021-03-26 10:35:25,962 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 59 transitions, 544 flow. Second operand has 8 states, 8 states have (on average 124.875) internal successors, (999), 8 states have internal predecessors, (999), 0 states have call successors, (0), 0 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 10:35:25,963 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:25,963 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 174 [2021-03-26 10:35:25,963 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:26,148 INFO L129 PetriNetUnfolder]: 71/221 cut-off events. [2021-03-26 10:35:26,149 INFO L130 PetriNetUnfolder]: For 1458/1536 co-relation queries the response was YES. [2021-03-26 10:35:26,150 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1225 conditions, 221 events. 71/221 cut-off events. For 1458/1536 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1103 event pairs, 13 based on Foata normal form. 28/242 useless extension candidates. Maximal degree in co-relation 1190. Up to 94 conditions per place. [2021-03-26 10:35:26,151 INFO L132 encePairwiseOnDemand]: 167/174 looper letters, 15 selfloop transitions, 12 changer transitions 8/56 dead transitions. [2021-03-26 10:35:26,151 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 56 transitions, 593 flow [2021-03-26 10:35:26,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:35:26,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:35:26,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 639 transitions. [2021-03-26 10:35:26,154 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7344827586206897 [2021-03-26 10:35:26,154 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 639 transitions. [2021-03-26 10:35:26,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 639 transitions. [2021-03-26 10:35:26,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:26,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 639 transitions. [2021-03-26 10:35:26,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 127.8) internal successors, (639), 5 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:26,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 0 states have call successors, (0), 0 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 10:35:26,171 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 0 states have call successors, (0), 0 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 10:35:26,171 INFO L185 Difference]: Start difference. First operand has 76 places, 59 transitions, 544 flow. Second operand 5 states and 639 transitions. [2021-03-26 10:35:26,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 56 transitions, 593 flow [2021-03-26 10:35:26,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 56 transitions, 563 flow, removed 13 selfloop flow, removed 4 redundant places. [2021-03-26 10:35:26,176 INFO L241 Difference]: Finished difference. Result has 72 places, 48 transitions, 458 flow [2021-03-26 10:35:26,176 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=463, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=458, PETRI_PLACES=72, PETRI_TRANSITIONS=48} [2021-03-26 10:35:26,176 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 26 predicate places. [2021-03-26 10:35:26,176 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:26,176 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 48 transitions, 458 flow [2021-03-26 10:35:26,176 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 48 transitions, 458 flow [2021-03-26 10:35:26,177 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 48 transitions, 458 flow [2021-03-26 10:35:26,202 INFO L129 PetriNetUnfolder]: 62/191 cut-off events. [2021-03-26 10:35:26,202 INFO L130 PetriNetUnfolder]: For 1074/1101 co-relation queries the response was YES. [2021-03-26 10:35:26,203 INFO L84 FinitePrefix]: Finished finitePrefix Result has 932 conditions, 191 events. 62/191 cut-off events. For 1074/1101 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 906 event pairs, 6 based on Foata normal form. 7/195 useless extension candidates. Maximal degree in co-relation 900. Up to 57 conditions per place. [2021-03-26 10:35:26,205 INFO L142 LiptonReduction]: Number of co-enabled transitions 282 [2021-03-26 10:35:26,208 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:35:26,209 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:26,209 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-03-26 10:35:26,210 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 48 transitions, 458 flow [2021-03-26 10:35:26,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 124.875) internal successors, (999), 8 states have internal predecessors, (999), 0 states have call successors, (0), 0 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 10:35:26,210 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:26,210 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:26,210 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-26 10:35:26,210 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 10:35:26,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:26,211 INFO L82 PathProgramCache]: Analyzing trace with hash 938480044, now seen corresponding path program 2 times [2021-03-26 10:35:26,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:26,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970448484] [2021-03-26 10:35:26,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:26,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:26,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:35:26,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:26,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 10:35:26,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:26,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 10:35:26,335 INFO L142 QuantifierPusher]: treesize reduction 4, result has 89.2 percent of original size [2021-03-26 10:35:26,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-26 10:35:26,370 INFO L142 QuantifierPusher]: treesize reduction 16, result has 46.7 percent of original size [2021-03-26 10:35:26,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:35:26,382 INFO L142 QuantifierPusher]: treesize reduction 7, result has 61.1 percent of original size [2021-03-26 10:35:26,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 10:35:26,394 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 10:35:26,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970448484] [2021-03-26 10:35:26,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:26,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 10:35:26,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294773687] [2021-03-26 10:35:26,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 10:35:26,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:26,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 10:35:26,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-03-26 10:35:26,397 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 174 [2021-03-26 10:35:26,398 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 48 transitions, 458 flow. Second operand has 8 states, 8 states have (on average 123.875) internal successors, (991), 8 states have internal predecessors, (991), 0 states have call successors, (0), 0 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 10:35:26,398 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:26,398 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 174 [2021-03-26 10:35:26,398 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:26,537 INFO L129 PetriNetUnfolder]: 69/208 cut-off events. [2021-03-26 10:35:26,537 INFO L130 PetriNetUnfolder]: For 1325/1376 co-relation queries the response was YES. [2021-03-26 10:35:26,539 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1098 conditions, 208 events. 69/208 cut-off events. For 1325/1376 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1005 event pairs, 14 based on Foata normal form. 32/234 useless extension candidates. Maximal degree in co-relation 1064. Up to 88 conditions per place. [2021-03-26 10:35:26,540 INFO L132 encePairwiseOnDemand]: 167/174 looper letters, 11 selfloop transitions, 17 changer transitions 1/50 dead transitions. [2021-03-26 10:35:26,540 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 50 transitions, 536 flow [2021-03-26 10:35:26,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:35:26,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:35:26,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 882 transitions. [2021-03-26 10:35:26,543 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7241379310344828 [2021-03-26 10:35:26,543 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 882 transitions. [2021-03-26 10:35:26,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 882 transitions. [2021-03-26 10:35:26,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:26,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 882 transitions. [2021-03-26 10:35:26,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 0 states have call successors, (0), 0 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 10:35:26,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 174.0) internal successors, (1392), 8 states have internal predecessors, (1392), 0 states have call successors, (0), 0 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 10:35:26,547 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 174.0) internal successors, (1392), 8 states have internal predecessors, (1392), 0 states have call successors, (0), 0 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 10:35:26,547 INFO L185 Difference]: Start difference. First operand has 70 places, 48 transitions, 458 flow. Second operand 7 states and 882 transitions. [2021-03-26 10:35:26,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 50 transitions, 536 flow [2021-03-26 10:35:26,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 50 transitions, 501 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-26 10:35:26,553 INFO L241 Difference]: Finished difference. Result has 71 places, 49 transitions, 482 flow [2021-03-26 10:35:26,553 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=482, PETRI_PLACES=71, PETRI_TRANSITIONS=49} [2021-03-26 10:35:26,553 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 25 predicate places. [2021-03-26 10:35:26,553 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:26,553 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 49 transitions, 482 flow [2021-03-26 10:35:26,556 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 49 transitions, 482 flow [2021-03-26 10:35:26,556 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 49 transitions, 482 flow [2021-03-26 10:35:26,579 INFO L129 PetriNetUnfolder]: 64/198 cut-off events. [2021-03-26 10:35:26,579 INFO L130 PetriNetUnfolder]: For 1134/1158 co-relation queries the response was YES. [2021-03-26 10:35:26,580 INFO L84 FinitePrefix]: Finished finitePrefix Result has 953 conditions, 198 events. 64/198 cut-off events. For 1134/1158 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 964 event pairs, 6 based on Foata normal form. 8/202 useless extension candidates. Maximal degree in co-relation 923. Up to 60 conditions per place. [2021-03-26 10:35:26,582 INFO L142 LiptonReduction]: Number of co-enabled transitions 296 [2021-03-26 10:35:26,586 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:35:26,586 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:26,587 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-03-26 10:35:26,588 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 49 transitions, 482 flow [2021-03-26 10:35:26,588 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 123.875) internal successors, (991), 8 states have internal predecessors, (991), 0 states have call successors, (0), 0 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 10:35:26,588 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:26,588 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:26,589 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-26 10:35:26,589 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 10:35:26,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:26,589 INFO L82 PathProgramCache]: Analyzing trace with hash -778674370, now seen corresponding path program 3 times [2021-03-26 10:35:26,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:26,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110067870] [2021-03-26 10:35:26,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:26,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:26,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:26,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 10:35:26,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:26,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 10:35:26,663 INFO L142 QuantifierPusher]: treesize reduction 10, result has 85.5 percent of original size [2021-03-26 10:35:26,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-26 10:35:26,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:26,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 10:35:26,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:26,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:35:26,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:26,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:35:26,733 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 10:35:26,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110067870] [2021-03-26 10:35:26,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:26,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 10:35:26,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560075861] [2021-03-26 10:35:26,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 10:35:26,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:26,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 10:35:26,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-03-26 10:35:26,735 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 174 [2021-03-26 10:35:26,736 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 49 transitions, 482 flow. Second operand has 8 states, 8 states have (on average 118.875) internal successors, (951), 8 states have internal predecessors, (951), 0 states have call successors, (0), 0 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 10:35:26,736 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:26,736 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 174 [2021-03-26 10:35:26,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:26,877 INFO L129 PetriNetUnfolder]: 71/215 cut-off events. [2021-03-26 10:35:26,877 INFO L130 PetriNetUnfolder]: For 1372/1421 co-relation queries the response was YES. [2021-03-26 10:35:26,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1126 conditions, 215 events. 71/215 cut-off events. For 1372/1421 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1046 event pairs, 13 based on Foata normal form. 27/237 useless extension candidates. Maximal degree in co-relation 1094. Up to 95 conditions per place. [2021-03-26 10:35:26,880 INFO L132 encePairwiseOnDemand]: 167/174 looper letters, 14 selfloop transitions, 7 changer transitions 9/51 dead transitions. [2021-03-26 10:35:26,880 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 51 transitions, 562 flow [2021-03-26 10:35:26,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:35:26,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:35:26,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 727 transitions. [2021-03-26 10:35:26,883 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.696360153256705 [2021-03-26 10:35:26,883 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 727 transitions. [2021-03-26 10:35:26,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 727 transitions. [2021-03-26 10:35:26,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:26,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 727 transitions. [2021-03-26 10:35:26,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.16666666666667) internal successors, (727), 6 states have internal predecessors, (727), 0 states have call successors, (0), 0 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 10:35:26,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 174.0) internal successors, (1218), 7 states have internal predecessors, (1218), 0 states have call successors, (0), 0 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 10:35:26,887 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 174.0) internal successors, (1218), 7 states have internal predecessors, (1218), 0 states have call successors, (0), 0 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 10:35:26,887 INFO L185 Difference]: Start difference. First operand has 71 places, 49 transitions, 482 flow. Second operand 6 states and 727 transitions. [2021-03-26 10:35:26,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 51 transitions, 562 flow [2021-03-26 10:35:26,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 51 transitions, 522 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-03-26 10:35:26,892 INFO L241 Difference]: Finished difference. Result has 72 places, 42 transitions, 387 flow [2021-03-26 10:35:26,892 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=387, PETRI_PLACES=72, PETRI_TRANSITIONS=42} [2021-03-26 10:35:26,892 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 26 predicate places. [2021-03-26 10:35:26,892 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:26,893 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 42 transitions, 387 flow [2021-03-26 10:35:26,893 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 42 transitions, 387 flow [2021-03-26 10:35:26,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 42 transitions, 387 flow [2021-03-26 10:35:26,915 INFO L129 PetriNetUnfolder]: 60/183 cut-off events. [2021-03-26 10:35:26,915 INFO L130 PetriNetUnfolder]: For 1174/1190 co-relation queries the response was YES. [2021-03-26 10:35:26,916 INFO L84 FinitePrefix]: Finished finitePrefix Result has 862 conditions, 183 events. 60/183 cut-off events. For 1174/1190 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 859 event pairs, 7 based on Foata normal form. 6/184 useless extension candidates. Maximal degree in co-relation 832. Up to 56 conditions per place. [2021-03-26 10:35:26,918 INFO L142 LiptonReduction]: Number of co-enabled transitions 258 [2021-03-26 10:35:27,054 INFO L154 LiptonReduction]: Checked pairs total: 7 [2021-03-26 10:35:27,054 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:35:27,054 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 162 [2021-03-26 10:35:27,055 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 42 transitions, 404 flow [2021-03-26 10:35:27,055 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 118.875) internal successors, (951), 8 states have internal predecessors, (951), 0 states have call successors, (0), 0 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 10:35:27,055 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:27,056 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 10:35:27,056 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-26 10:35:27,056 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 10:35:27,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:27,056 INFO L82 PathProgramCache]: Analyzing trace with hash -2083476521, now seen corresponding path program 1 times [2021-03-26 10:35:27,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:27,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652429254] [2021-03-26 10:35:27,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:27,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:27,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:27,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:27,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:27,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:27,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:27,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:27,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:27,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:27,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:27,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:35:27,155 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 10:35:27,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652429254] [2021-03-26 10:35:27,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:27,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:35:27,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522740644] [2021-03-26 10:35:27,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:35:27,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:27,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:35:27,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:35:27,157 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 175 [2021-03-26 10:35:27,158 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 42 transitions, 404 flow. Second operand has 6 states, 6 states have (on average 141.83333333333334) internal successors, (851), 6 states have internal predecessors, (851), 0 states have call successors, (0), 0 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 10:35:27,158 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:27,158 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 175 [2021-03-26 10:35:27,158 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:27,231 INFO L129 PetriNetUnfolder]: 98/236 cut-off events. [2021-03-26 10:35:27,231 INFO L130 PetriNetUnfolder]: For 799/953 co-relation queries the response was YES. [2021-03-26 10:35:27,233 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1023 conditions, 236 events. 98/236 cut-off events. For 799/953 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1136 event pairs, 4 based on Foata normal form. 50/253 useless extension candidates. Maximal degree in co-relation 991. Up to 77 conditions per place. [2021-03-26 10:35:27,233 INFO L132 encePairwiseOnDemand]: 169/175 looper letters, 5 selfloop transitions, 11 changer transitions 7/49 dead transitions. [2021-03-26 10:35:27,233 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 49 transitions, 480 flow [2021-03-26 10:35:27,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:35:27,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:35:27,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1009 transitions. [2021-03-26 10:35:27,237 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8236734693877551 [2021-03-26 10:35:27,237 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1009 transitions. [2021-03-26 10:35:27,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1009 transitions. [2021-03-26 10:35:27,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:27,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1009 transitions. [2021-03-26 10:35:27,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 144.14285714285714) internal successors, (1009), 7 states have internal predecessors, (1009), 0 states have call successors, (0), 0 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 10:35:27,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 175.0) internal successors, (1400), 8 states have internal predecessors, (1400), 0 states have call successors, (0), 0 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 10:35:27,242 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 175.0) internal successors, (1400), 8 states have internal predecessors, (1400), 0 states have call successors, (0), 0 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 10:35:27,242 INFO L185 Difference]: Start difference. First operand has 67 places, 42 transitions, 404 flow. Second operand 7 states and 1009 transitions. [2021-03-26 10:35:27,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 49 transitions, 480 flow [2021-03-26 10:35:27,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 49 transitions, 390 flow, removed 21 selfloop flow, removed 10 redundant places. [2021-03-26 10:35:27,246 INFO L241 Difference]: Finished difference. Result has 66 places, 40 transitions, 337 flow [2021-03-26 10:35:27,246 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=337, PETRI_PLACES=66, PETRI_TRANSITIONS=40} [2021-03-26 10:35:27,246 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 20 predicate places. [2021-03-26 10:35:27,246 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:27,246 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 40 transitions, 337 flow [2021-03-26 10:35:27,246 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 40 transitions, 337 flow [2021-03-26 10:35:27,247 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 40 transitions, 337 flow [2021-03-26 10:35:27,256 INFO L129 PetriNetUnfolder]: 18/66 cut-off events. [2021-03-26 10:35:27,256 INFO L130 PetriNetUnfolder]: For 197/213 co-relation queries the response was YES. [2021-03-26 10:35:27,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 66 events. 18/66 cut-off events. For 197/213 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 170 event pairs, 0 based on Foata normal form. 5/69 useless extension candidates. Maximal degree in co-relation 288. Up to 20 conditions per place. [2021-03-26 10:35:27,257 INFO L142 LiptonReduction]: Number of co-enabled transitions 194 [2021-03-26 10:35:27,415 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 66 [2021-03-26 10:35:27,760 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 85 [2021-03-26 10:35:28,399 WARN L205 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 180 [2021-03-26 10:35:28,595 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-03-26 10:35:30,520 WARN L205 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 334 DAG size of output: 260 [2021-03-26 10:35:31,028 WARN L205 SmtUtils]: Spent 505.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-03-26 10:35:31,281 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-03-26 10:35:31,498 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-03-26 10:35:32,025 WARN L205 SmtUtils]: Spent 524.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2021-03-26 10:35:32,554 WARN L205 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2021-03-26 10:35:32,561 INFO L154 LiptonReduction]: Checked pairs total: 23 [2021-03-26 10:35:32,561 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 10:35:32,561 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5315 [2021-03-26 10:35:32,562 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 37 transitions, 335 flow [2021-03-26 10:35:32,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 141.83333333333334) internal successors, (851), 6 states have internal predecessors, (851), 0 states have call successors, (0), 0 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 10:35:32,562 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:32,562 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:32,562 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-26 10:35:32,562 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 10:35:32,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:32,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1518087972, now seen corresponding path program 1 times [2021-03-26 10:35:32,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:32,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166073962] [2021-03-26 10:35:32,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:32,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:32,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:32,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:35:32,638 INFO L142 QuantifierPusher]: treesize reduction 4, result has 90.5 percent of original size [2021-03-26 10:35:32,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-26 10:35:32,671 INFO L142 QuantifierPusher]: treesize reduction 37, result has 54.3 percent of original size [2021-03-26 10:35:32,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 10:35:32,714 INFO L142 QuantifierPusher]: treesize reduction 37, result has 56.5 percent of original size [2021-03-26 10:35:32,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 10:35:32,766 INFO L142 QuantifierPusher]: treesize reduction 34, result has 59.5 percent of original size [2021-03-26 10:35:32,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-26 10:35:32,816 INFO L142 QuantifierPusher]: treesize reduction 17, result has 50.0 percent of original size [2021-03-26 10:35:32,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:35:32,831 INFO L142 QuantifierPusher]: treesize reduction 65, result has 41.4 percent of original size [2021-03-26 10:35:32,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 10:35:32,872 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 10:35:32,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166073962] [2021-03-26 10:35:32,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:32,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 10:35:32,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550939712] [2021-03-26 10:35:32,874 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 10:35:32,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:32,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 10:35:32,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-26 10:35:32,879 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 179 [2021-03-26 10:35:32,879 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 37 transitions, 335 flow. Second operand has 9 states, 9 states have (on average 117.88888888888889) internal successors, (1061), 9 states have internal predecessors, (1061), 0 states have call successors, (0), 0 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 10:35:32,880 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:32,880 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 179 [2021-03-26 10:35:32,880 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:33,150 INFO L129 PetriNetUnfolder]: 28/95 cut-off events. [2021-03-26 10:35:33,150 INFO L130 PetriNetUnfolder]: For 549/603 co-relation queries the response was YES. [2021-03-26 10:35:33,151 INFO L84 FinitePrefix]: Finished finitePrefix Result has 486 conditions, 95 events. 28/95 cut-off events. For 549/603 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 358 event pairs, 1 based on Foata normal form. 22/110 useless extension candidates. Maximal degree in co-relation 455. Up to 38 conditions per place. [2021-03-26 10:35:33,151 INFO L132 encePairwiseOnDemand]: 171/179 looper letters, 16 selfloop transitions, 6 changer transitions 5/44 dead transitions. [2021-03-26 10:35:33,151 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 44 transitions, 469 flow [2021-03-26 10:35:33,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:35:33,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:35:33,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 839 transitions. [2021-03-26 10:35:33,155 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6695929768555466 [2021-03-26 10:35:33,155 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 839 transitions. [2021-03-26 10:35:33,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 839 transitions. [2021-03-26 10:35:33,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:33,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 839 transitions. [2021-03-26 10:35:33,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 119.85714285714286) internal successors, (839), 7 states have internal predecessors, (839), 0 states have call successors, (0), 0 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 10:35:33,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 179.0) internal successors, (1432), 8 states have internal predecessors, (1432), 0 states have call successors, (0), 0 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 10:35:33,161 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 179.0) internal successors, (1432), 8 states have internal predecessors, (1432), 0 states have call successors, (0), 0 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 10:35:33,161 INFO L185 Difference]: Start difference. First operand has 61 places, 37 transitions, 335 flow. Second operand 7 states and 839 transitions. [2021-03-26 10:35:33,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 44 transitions, 469 flow [2021-03-26 10:35:33,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 44 transitions, 395 flow, removed 19 selfloop flow, removed 10 redundant places. [2021-03-26 10:35:33,164 INFO L241 Difference]: Finished difference. Result has 59 places, 36 transitions, 276 flow [2021-03-26 10:35:33,164 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=276, PETRI_PLACES=59, PETRI_TRANSITIONS=36} [2021-03-26 10:35:33,165 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 13 predicate places. [2021-03-26 10:35:33,165 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:33,165 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 36 transitions, 276 flow [2021-03-26 10:35:33,165 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 36 transitions, 276 flow [2021-03-26 10:35:33,165 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 36 transitions, 276 flow [2021-03-26 10:35:33,173 INFO L129 PetriNetUnfolder]: 20/70 cut-off events. [2021-03-26 10:35:33,173 INFO L130 PetriNetUnfolder]: For 165/171 co-relation queries the response was YES. [2021-03-26 10:35:33,173 INFO L84 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 70 events. 20/70 cut-off events. For 165/171 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 226 event pairs, 1 based on Foata normal form. 5/74 useless extension candidates. Maximal degree in co-relation 249. Up to 23 conditions per place. [2021-03-26 10:35:33,174 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-26 10:35:33,376 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-03-26 10:35:33,772 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 87 [2021-03-26 10:35:33,894 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-26 10:35:33,941 INFO L154 LiptonReduction]: Checked pairs total: 18 [2021-03-26 10:35:33,941 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 10:35:33,941 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 776 [2021-03-26 10:35:33,941 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 35 transitions, 280 flow [2021-03-26 10:35:33,942 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 117.88888888888889) internal successors, (1061), 9 states have internal predecessors, (1061), 0 states have call successors, (0), 0 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 10:35:33,942 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:33,942 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:33,942 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-26 10:35:33,942 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 10:35:33,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:33,942 INFO L82 PathProgramCache]: Analyzing trace with hash -2136050312, now seen corresponding path program 1 times [2021-03-26 10:35:33,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:33,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042279599] [2021-03-26 10:35:33,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 10:35:33,968 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 10:35:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 10:35:33,994 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 10:35:34,023 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 10:35:34,023 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 10:35:34,023 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-26 10:35:34,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 10:35:34 BasicIcfg [2021-03-26 10:35:34,112 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 10:35:34,113 INFO L168 Benchmark]: Toolchain (without parser) took 28288.34 ms. Allocated memory was 255.9 MB in the beginning and 708.8 MB in the end (delta: 453.0 MB). Free memory was 233.2 MB in the beginning and 674.9 MB in the end (delta: -441.7 MB). Peak memory consumption was 423.0 MB. Max. memory is 16.0 GB. [2021-03-26 10:35:34,113 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 255.9 MB. Free memory is still 237.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:35:34,113 INFO L168 Benchmark]: CACSL2BoogieTranslator took 510.06 ms. Allocated memory was 255.9 MB in the beginning and 323.0 MB in the end (delta: 67.1 MB). Free memory was 232.6 MB in the beginning and 283.3 MB in the end (delta: -50.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-26 10:35:34,114 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.06 ms. Allocated memory is still 323.0 MB. Free memory was 282.9 MB in the beginning and 280.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-26 10:35:34,114 INFO L168 Benchmark]: Boogie Preprocessor took 29.98 ms. Allocated memory is still 323.0 MB. Free memory was 280.4 MB in the beginning and 277.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:35:34,114 INFO L168 Benchmark]: RCFGBuilder took 2032.02 ms. Allocated memory is still 323.0 MB. Free memory was 277.9 MB in the beginning and 218.4 MB in the end (delta: 59.5 MB). Peak memory consumption was 60.4 MB. Max. memory is 16.0 GB. [2021-03-26 10:35:34,118 INFO L168 Benchmark]: TraceAbstraction took 25662.46 ms. Allocated memory was 323.0 MB in the beginning and 708.8 MB in the end (delta: 385.9 MB). Free memory was 218.4 MB in the beginning and 674.9 MB in the end (delta: -456.5 MB). Peak memory consumption was 342.5 MB. Max. memory is 16.0 GB. [2021-03-26 10:35:34,119 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 255.9 MB. Free memory is still 237.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 510.06 ms. Allocated memory was 255.9 MB in the beginning and 323.0 MB in the end (delta: 67.1 MB). Free memory was 232.6 MB in the beginning and 283.3 MB in the end (delta: -50.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 46.06 ms. Allocated memory is still 323.0 MB. Free memory was 282.9 MB in the beginning and 280.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.98 ms. Allocated memory is still 323.0 MB. Free memory was 280.4 MB in the beginning and 277.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 2032.02 ms. Allocated memory is still 323.0 MB. Free memory was 277.9 MB in the beginning and 218.4 MB in the end (delta: 59.5 MB). Peak memory consumption was 60.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 25662.46 ms. Allocated memory was 323.0 MB in the beginning and 708.8 MB in the end (delta: 385.9 MB). Free memory was 218.4 MB in the beginning and 674.9 MB in the end (delta: -456.5 MB). Peak memory consumption was 342.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7978.7ms, 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: 716, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 686, negative conditional: 0, negative unconditional: 686, 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: 3297.6ms, 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: 306, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 306, negative conditional: 102, negative unconditional: 204, 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: 967.7ms, 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: 171, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 171, negative conditional: 0, negative unconditional: 171, 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: 85.3ms, 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: 75, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 75, negative conditional: 0, negative unconditional: 75, 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: 63.4ms, 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: 49, positive: 45, positive conditional: 45, positive unconditional: 0, negative: 3, negative conditional: 3, 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: 24.7ms, 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: 19.4ms, 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: 76.2ms, 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: 57, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 33, negative conditional: 0, negative unconditional: 33, 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: 37.6ms, 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: 69.5ms, 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: 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] ], 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: 37.9ms, 55 PlacesBefore, 55 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 348 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 127 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 35, positive: 28, positive conditional: 28, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 35, positive: 28, positive conditional: 10, positive unconditional: 18, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 35, positive: 28, positive conditional: 10, positive unconditional: 18, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 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: 35, positive: 28, positive conditional: 10, positive unconditional: 18, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 13 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 100.3ms, 59 PlacesBefore, 57 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 330 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 239 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 121, positive: 113, positive conditional: 113, 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: 121, positive: 113, positive conditional: 54, positive unconditional: 59, 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: 121, positive: 113, positive conditional: 54, positive unconditional: 59, 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: 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: 121, positive: 111, positive conditional: 54, positive unconditional: 57, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1275, Positive cache size: 1207, Positive conditional cache size: 21, Positive unconditional cache size: 1186, Negative cache size: 68, Negative conditional cache size: 8, Negative unconditional cache size: 60, Eliminated conditions: 33 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 47.2ms, 59 PlacesBefore, 59 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 352 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 119 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 52, positive: 47, positive conditional: 47, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 52, positive: 47, positive conditional: 20, positive unconditional: 27, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 52, positive: 47, positive conditional: 20, positive unconditional: 27, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 52, positive: 44, positive conditional: 19, positive unconditional: 25, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 3, unknown conditional: 1, 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: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 49.1ms, 67 PlacesBefore, 67 PlacesAfterwards, 53 TransitionsBefore, 53 TransitionsAfterwards, 374 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 289 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 127, positive: 115, positive conditional: 115, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 127, positive: 115, positive conditional: 42, positive unconditional: 73, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 127, positive: 115, positive conditional: 42, positive unconditional: 73, negative: 12, negative conditional: 0, negative unconditional: 12, 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: 127, positive: 115, positive conditional: 42, positive unconditional: 73, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 56.6ms, 71 PlacesBefore, 71 PlacesAfterwards, 55 TransitionsBefore, 55 TransitionsAfterwards, 384 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 306 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 121, positive: 108, positive conditional: 108, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 121, positive: 108, positive conditional: 45, positive unconditional: 63, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 121, positive: 108, positive conditional: 45, positive unconditional: 63, negative: 13, negative conditional: 0, negative unconditional: 13, 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: 121, positive: 106, positive conditional: 43, positive unconditional: 63, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1280, Positive cache size: 1212, Positive conditional cache size: 24, Positive unconditional cache size: 1188, Negative cache size: 68, Negative conditional cache size: 8, Negative unconditional cache size: 60, Eliminated conditions: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 46.9ms, 73 PlacesBefore, 73 PlacesAfterwards, 54 TransitionsBefore, 54 TransitionsAfterwards, 378 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 272 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 132, positive: 118, positive conditional: 118, 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: 132, positive: 118, positive conditional: 48, positive unconditional: 70, 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: 132, positive: 118, positive conditional: 48, positive unconditional: 70, 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: 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: 132, positive: 114, positive conditional: 46, positive unconditional: 68, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1284, Positive cache size: 1216, Positive conditional cache size: 26, Positive unconditional cache size: 1190, Negative cache size: 68, Negative conditional cache size: 8, Negative unconditional cache size: 60, Eliminated conditions: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 93.5ms, 72 PlacesBefore, 72 PlacesAfterwards, 56 TransitionsBefore, 56 TransitionsAfterwards, 472 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: 26, Positive unconditional cache size: 1190, Negative cache size: 68, Negative conditional cache size: 8, Negative unconditional cache size: 60, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 60.4ms, 76 PlacesBefore, 76 PlacesAfterwards, 61 TransitionsBefore, 59 TransitionsAfterwards, 506 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 54 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 54, positive: 54, positive conditional: 54, 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: 54, positive: 54, positive conditional: 52, positive unconditional: 2, 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: 54, positive: 54, positive conditional: 52, positive unconditional: 2, 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: 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] , 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: 54, positive: 51, positive conditional: 49, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1287, Positive cache size: 1219, Positive conditional cache size: 29, Positive unconditional cache size: 1190, Negative cache size: 68, Negative conditional cache size: 8, Negative unconditional cache size: 60, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.1ms, 72 PlacesBefore, 70 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 282 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): 1287, Positive cache size: 1219, Positive conditional cache size: 29, Positive unconditional cache size: 1190, Negative cache size: 68, Negative conditional cache size: 8, Negative unconditional cache size: 60, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.7ms, 71 PlacesBefore, 71 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 296 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): 1287, Positive cache size: 1219, Positive conditional cache size: 29, Positive unconditional cache size: 1190, Negative cache size: 68, Negative conditional cache size: 8, Negative unconditional cache size: 60, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 161.4ms, 72 PlacesBefore, 67 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 258 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 7 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 7, 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: 7, positive: 7, positive conditional: 7, 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: 7, positive: 7, positive conditional: 7, 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: 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] , 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: 7, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1290, Positive cache size: 1222, Positive conditional cache size: 32, Positive unconditional cache size: 1190, Negative cache size: 68, Negative conditional cache size: 8, Negative unconditional cache size: 60, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5314.7ms, 66 PlacesBefore, 61 PlacesAfterwards, 40 TransitionsBefore, 37 TransitionsAfterwards, 194 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 23 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23, positive: 23, positive conditional: 23, 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: 23, positive: 23, positive conditional: 17, positive unconditional: 6, 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: 23, positive: 23, positive conditional: 17, positive unconditional: 6, 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: 23, positive: 21, positive conditional: 15, positive unconditional: 6, 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): 1292, Positive cache size: 1224, Positive conditional cache size: 34, Positive unconditional cache size: 1190, Negative cache size: 68, Negative conditional cache size: 8, Negative unconditional cache size: 60, Eliminated conditions: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 775.8ms, 59 PlacesBefore, 56 PlacesAfterwards, 36 TransitionsBefore, 35 TransitionsAfterwards, 156 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 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: 8, positive unconditional: 10, 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: 8, positive unconditional: 10, 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: 18, positive: 16, positive conditional: 6, positive unconditional: 10, 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): 1294, Positive cache size: 1226, Positive conditional cache size: 36, Positive unconditional cache size: 1190, Negative cache size: 68, Negative conditional cache size: 8, Negative unconditional cache size: 60, Eliminated conditions: 10 - 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 t2192; [L814] FCALL, FORK 0 pthread_create(&t2192, ((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 t2193; [L816] FCALL, FORK 0 pthread_create(&t2193, ((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 t2194; [L818] FCALL, FORK 0 pthread_create(&t2194, ((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] [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$r_buff1_thd2 [L754] EXPR 1 y$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$r_buff1_thd1 [L791] EXPR 3 y$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$w_buff0)) [L836] 0 y$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$w_buff1)) [L837] 0 y$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] 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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L839] 0 y$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] 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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L841] 0 y$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=53, weak$$choice2=255, 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: 7.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 25438.2ms, OverallIterations: 23, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 2919.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8050.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 114 SDtfs, 40 SDslu, 38 SDs, 0 SdLazy, 706 SolverSat, 161 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 871.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1298.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=587occurred in iteration=15, InterpolantAutomatonStates: 108, 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: 62.8ms SsaConstructionTime, 608.8ms SatisfiabilityAnalysisTime, 1949.2ms InterpolantComputationTime, 324 NumberOfCodeBlocks, 324 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 286 ConstructedInterpolants, 0 QuantifiedInterpolants, 2734 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...