/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe014_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 23:51:43,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 23:51:43,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 23:51:43,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 23:51:43,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 23:51:43,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 23:51:43,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 23:51:43,761 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 23:51:43,765 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 23:51:43,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 23:51:43,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 23:51:43,775 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 23:51:43,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 23:51:43,778 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 23:51:43,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 23:51:43,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 23:51:43,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 23:51:43,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 23:51:43,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 23:51:43,804 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 23:51:43,806 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 23:51:43,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 23:51:43,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 23:51:43,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 23:51:43,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 23:51:43,827 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 23:51:43,828 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 23:51:43,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 23:51:43,832 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 23:51:43,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 23:51:43,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 23:51:43,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 23:51:43,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 23:51:43,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 23:51:43,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 23:51:43,837 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 23:51:43,838 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 23:51:43,894 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 23:51:43,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 23:51:43,900 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 23:51:43,900 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 23:51:43,900 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 23:51:43,901 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 23:51:43,901 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 23:51:43,901 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 23:51:43,901 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 23:51:43,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 23:51:43,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 23:51:43,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 23:51:43,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 23:51:43,904 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 23:51:43,904 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 23:51:43,904 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 23:51:43,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 23:51:43,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 23:51:43,905 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 23:51:43,905 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 23:51:43,905 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 23:51:43,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:51:43,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 23:51:43,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 23:51:43,906 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 23:51:43,906 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 23:51:43,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 23:51:43,907 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 23:51:43,907 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 23:51:43,908 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 23:51:43,908 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 23:51:44,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 23:51:44,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 23:51:44,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 23:51:44,403 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 23:51:44,404 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 23:51:44,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_tso.oepc.i [2021-04-28 23:51:44,500 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dfeabbc3/4cafce9d462440c2bb208850485ea8dc/FLAG9055560c0 [2021-04-28 23:51:45,240 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 23:51:45,241 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_tso.oepc.i [2021-04-28 23:51:45,260 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dfeabbc3/4cafce9d462440c2bb208850485ea8dc/FLAG9055560c0 [2021-04-28 23:51:45,486 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dfeabbc3/4cafce9d462440c2bb208850485ea8dc [2021-04-28 23:51:45,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 23:51:45,550 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 23:51:45,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 23:51:45,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 23:51:45,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 23:51:45,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:51:45" (1/1) ... [2021-04-28 23:51:45,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f505917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:51:45, skipping insertion in model container [2021-04-28 23:51:45,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:51:45" (1/1) ... [2021-04-28 23:51:45,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 23:51:45,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 23:51:45,911 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/safe014_tso.oepc.i[950,963] [2021-04-28 23:51:46,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:51:46,178 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 23:51:46,195 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/safe014_tso.oepc.i[950,963] [2021-04-28 23:51:46,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:51:46,395 INFO L208 MainTranslator]: Completed translation [2021-04-28 23:51:46,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:51:46 WrapperNode [2021-04-28 23:51:46,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 23:51:46,400 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 23:51:46,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 23:51:46,401 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 23:51:46,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:51:46" (1/1) ... [2021-04-28 23:51:46,451 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:51:46" (1/1) ... [2021-04-28 23:51:46,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 23:51:46,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 23:51:46,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 23:51:46,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 23:51:46,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:51:46" (1/1) ... [2021-04-28 23:51:46,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:51:46" (1/1) ... [2021-04-28 23:51:46,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:51:46" (1/1) ... [2021-04-28 23:51:46,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:51:46" (1/1) ... [2021-04-28 23:51:46,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:51:46" (1/1) ... [2021-04-28 23:51:46,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:51:46" (1/1) ... [2021-04-28 23:51:46,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:51:46" (1/1) ... [2021-04-28 23:51:46,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 23:51:46,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 23:51:46,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 23:51:46,532 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 23:51:46,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:51:46" (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 [2021-04-28 23:51:46,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 23:51:46,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 23:51:46,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 23:51:46,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 23:51:46,641 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 23:51:46,641 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 23:51:46,641 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 23:51:46,642 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 23:51:46,642 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 23:51:46,642 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 23:51:46,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 23:51:46,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 23:51:46,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 23:51:46,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 23:51:46,644 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 23:51:47,084 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 23:51:47,084 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-28 23:51:47,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:51:47 BoogieIcfgContainer [2021-04-28 23:51:47,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 23:51:47,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 23:51:47,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 23:51:47,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 23:51:47,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 11:51:45" (1/3) ... [2021-04-28 23:51:47,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e0b938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:51:47, skipping insertion in model container [2021-04-28 23:51:47,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:51:46" (2/3) ... [2021-04-28 23:51:47,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e0b938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:51:47, skipping insertion in model container [2021-04-28 23:51:47,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:51:47" (3/3) ... [2021-04-28 23:51:47,097 INFO L111 eAbstractionObserver]: Analyzing ICFG safe014_tso.oepc.i [2021-04-28 23:51:47,104 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 23:51:47,110 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-28 23:51:47,112 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 23:51:47,150 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,150 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,151 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,151 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,151 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,151 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,152 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,152 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,152 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,152 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,153 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,153 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,154 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,154 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,154 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,154 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,154 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,155 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,155 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,155 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,155 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,156 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,156 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,156 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,157 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,157 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,157 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,157 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,157 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,158 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,158 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,158 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,158 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,159 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,159 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,159 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,162 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,162 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,163 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,163 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,169 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,169 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,170 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,170 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,173 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,173 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,173 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,173 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:51:47,176 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 23:51:47,202 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-28 23:51:47,231 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 23:51:47,231 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 23:51:47,231 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 23:51:47,231 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 23:51:47,232 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 23:51:47,232 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 23:51:47,232 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 23:51:47,232 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 23:51:47,246 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-04-28 23:51:47,303 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-04-28 23:51:47,303 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:51:47,312 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-28 23:51:47,312 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-04-28 23:51:47,323 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-04-28 23:51:47,327 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:47,344 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-04-28 23:51:47,353 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-04-28 23:51:47,356 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-04-28 23:51:47,402 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-04-28 23:51:47,403 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:51:47,404 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-28 23:51:47,408 INFO L146 LiptonReduction]: Number of co-enabled transitions 864 [2021-04-28 23:51:51,078 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:51:51,241 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:51:51,540 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:51:51,739 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:51:51,932 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:51:52,133 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:51:52,330 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:51:52,531 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:51:52,714 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:51:53,157 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:51:53,334 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:51:54,329 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-04-28 23:51:54,635 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-04-28 23:51:54,737 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-28 23:51:54,999 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-04-28 23:51:55,105 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 23:51:55,348 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-04-28 23:51:55,458 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 23:51:56,058 INFO L158 LiptonReduction]: Checked pairs total: 5648 [2021-04-28 23:51:56,059 INFO L160 LiptonReduction]: Total number of compositions: 84 [2021-04-28 23:51:56,062 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8739 [2021-04-28 23:51:56,083 INFO L129 PetriNetUnfolder]: 0/61 cut-off events. [2021-04-28 23:51:56,083 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:51:56,083 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:56,084 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:56,085 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:56,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:56,091 INFO L82 PathProgramCache]: Analyzing trace with hash 351986949, now seen corresponding path program 1 times [2021-04-28 23:51:56,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:56,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229754689] [2021-04-28 23:51:56,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:56,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:56,424 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:51:56,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:51:56,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:51:56,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229754689] [2021-04-28 23:51:56,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:56,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:51:56,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671700948] [2021-04-28 23:51:56,452 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:51:56,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:56,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:51:56,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:51:56,472 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 159 [2021-04-28 23:51:56,476 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 65 transitions, 139 flow. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:56,476 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:56,476 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 159 [2021-04-28 23:51:56,478 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:56,654 INFO L129 PetriNetUnfolder]: 247/757 cut-off events. [2021-04-28 23:51:56,654 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:51:56,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1196 conditions, 757 events. 247/757 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 6384 event pairs, 93 based on Foata normal form. 0/431 useless extension candidates. Maximal degree in co-relation 1157. Up to 271 conditions per place. [2021-04-28 23:51:56,667 INFO L132 encePairwiseOnDemand]: 141/159 looper letters, 6 selfloop transitions, 6 changer transitions 30/74 dead transitions. [2021-04-28 23:51:56,667 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 74 transitions, 219 flow [2021-04-28 23:51:56,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:51:56,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:51:56,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2021-04-28 23:51:56,692 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7358490566037735 [2021-04-28 23:51:56,693 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 351 transitions. [2021-04-28 23:51:56,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 351 transitions. [2021-04-28 23:51:56,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:56,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 351 transitions. [2021-04-28 23:51:56,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:56,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:56,721 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:56,724 INFO L185 Difference]: Start difference. First operand has 75 places, 65 transitions, 139 flow. Second operand 3 states and 351 transitions. [2021-04-28 23:51:56,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 74 transitions, 219 flow [2021-04-28 23:51:56,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 74 transitions, 216 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 23:51:56,732 INFO L241 Difference]: Finished difference. Result has 76 places, 44 transitions, 130 flow [2021-04-28 23:51:56,735 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=76, PETRI_TRANSITIONS=44} [2021-04-28 23:51:56,736 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 1 predicate places. [2021-04-28 23:51:56,736 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:56,737 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 44 transitions, 130 flow [2021-04-28 23:51:56,738 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 44 transitions, 130 flow [2021-04-28 23:51:56,738 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 44 transitions, 130 flow [2021-04-28 23:51:56,771 INFO L129 PetriNetUnfolder]: 47/217 cut-off events. [2021-04-28 23:51:56,772 INFO L130 PetriNetUnfolder]: For 23/31 co-relation queries the response was YES. [2021-04-28 23:51:56,774 INFO L84 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 217 events. 47/217 cut-off events. For 23/31 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1333 event pairs, 15 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 358. Up to 66 conditions per place. [2021-04-28 23:51:56,781 INFO L146 LiptonReduction]: Number of co-enabled transitions 1004 [2021-04-28 23:51:56,796 INFO L158 LiptonReduction]: Checked pairs total: 197 [2021-04-28 23:51:56,796 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:56,797 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 61 [2021-04-28 23:51:56,799 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 130 flow [2021-04-28 23:51:56,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:56,800 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:56,800 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:56,801 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 23:51:56,801 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:56,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:56,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1973307743, now seen corresponding path program 1 times [2021-04-28 23:51:56,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:56,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105835] [2021-04-28 23:51:56,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:56,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:56,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:56,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:56,954 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:51:56,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:51:56,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:51:56,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105835] [2021-04-28 23:51:56,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:56,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:51:56,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076584727] [2021-04-28 23:51:56,978 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:51:56,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:56,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:51:56,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:51:56,984 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 159 [2021-04-28 23:51:56,986 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 130 flow. Second operand has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:56,986 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:56,986 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 159 [2021-04-28 23:51:56,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:57,039 INFO L129 PetriNetUnfolder]: 32/159 cut-off events. [2021-04-28 23:51:57,039 INFO L130 PetriNetUnfolder]: For 40/141 co-relation queries the response was YES. [2021-04-28 23:51:57,040 INFO L84 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 159 events. 32/159 cut-off events. For 40/141 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 909 event pairs, 1 based on Foata normal form. 2/104 useless extension candidates. Maximal degree in co-relation 336. Up to 48 conditions per place. [2021-04-28 23:51:57,041 INFO L132 encePairwiseOnDemand]: 152/159 looper letters, 13 selfloop transitions, 7 changer transitions 0/52 dead transitions. [2021-04-28 23:51:57,042 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 52 transitions, 210 flow [2021-04-28 23:51:57,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:51:57,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:51:57,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 440 transitions. [2021-04-28 23:51:57,045 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6918238993710691 [2021-04-28 23:51:57,045 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 440 transitions. [2021-04-28 23:51:57,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 440 transitions. [2021-04-28 23:51:57,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:57,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 440 transitions. [2021-04-28 23:51:57,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:57,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:57,051 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:57,051 INFO L185 Difference]: Start difference. First operand has 50 places, 44 transitions, 130 flow. Second operand 4 states and 440 transitions. [2021-04-28 23:51:57,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 52 transitions, 210 flow [2021-04-28 23:51:57,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 52 transitions, 190 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:51:57,055 INFO L241 Difference]: Finished difference. Result has 54 places, 48 transitions, 172 flow [2021-04-28 23:51:57,055 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=172, PETRI_PLACES=54, PETRI_TRANSITIONS=48} [2021-04-28 23:51:57,056 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -21 predicate places. [2021-04-28 23:51:57,056 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:57,056 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 48 transitions, 172 flow [2021-04-28 23:51:57,057 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 48 transitions, 172 flow [2021-04-28 23:51:57,057 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 48 transitions, 172 flow [2021-04-28 23:51:57,074 INFO L129 PetriNetUnfolder]: 32/155 cut-off events. [2021-04-28 23:51:57,075 INFO L130 PetriNetUnfolder]: For 63/77 co-relation queries the response was YES. [2021-04-28 23:51:57,075 INFO L84 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 155 events. 32/155 cut-off events. For 63/77 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 892 event pairs, 6 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 307. Up to 48 conditions per place. [2021-04-28 23:51:57,079 INFO L146 LiptonReduction]: Number of co-enabled transitions 1114 [2021-04-28 23:51:57,092 INFO L158 LiptonReduction]: Checked pairs total: 201 [2021-04-28 23:51:57,092 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:57,092 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36 [2021-04-28 23:51:57,094 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 48 transitions, 172 flow [2021-04-28 23:51:57,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:57,095 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:57,095 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:57,095 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 23:51:57,096 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:57,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:57,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1973335550, now seen corresponding path program 1 times [2021-04-28 23:51:57,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:57,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874595232] [2021-04-28 23:51:57,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:57,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:57,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:57,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:57,162 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:51:57,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:51:57,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:51:57,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874595232] [2021-04-28 23:51:57,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:57,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:51:57,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575948243] [2021-04-28 23:51:57,184 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:51:57,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:57,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:51:57,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:51:57,186 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 159 [2021-04-28 23:51:57,187 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 48 transitions, 172 flow. Second operand has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:57,188 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:57,188 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 159 [2021-04-28 23:51:57,188 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:57,253 INFO L129 PetriNetUnfolder]: 26/148 cut-off events. [2021-04-28 23:51:57,253 INFO L130 PetriNetUnfolder]: For 82/140 co-relation queries the response was YES. [2021-04-28 23:51:57,254 INFO L84 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 148 events. 26/148 cut-off events. For 82/140 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 832 event pairs, 4 based on Foata normal form. 7/101 useless extension candidates. Maximal degree in co-relation 341. Up to 39 conditions per place. [2021-04-28 23:51:57,255 INFO L132 encePairwiseOnDemand]: 152/159 looper letters, 12 selfloop transitions, 11 changer transitions 0/55 dead transitions. [2021-04-28 23:51:57,256 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 55 transitions, 264 flow [2021-04-28 23:51:57,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:51:57,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:51:57,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 439 transitions. [2021-04-28 23:51:57,258 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.690251572327044 [2021-04-28 23:51:57,258 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 439 transitions. [2021-04-28 23:51:57,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 439 transitions. [2021-04-28 23:51:57,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:57,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 439 transitions. [2021-04-28 23:51:57,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:57,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:57,264 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:57,264 INFO L185 Difference]: Start difference. First operand has 54 places, 48 transitions, 172 flow. Second operand 4 states and 439 transitions. [2021-04-28 23:51:57,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 55 transitions, 264 flow [2021-04-28 23:51:57,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 55 transitions, 259 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:51:57,268 INFO L241 Difference]: Finished difference. Result has 59 places, 52 transitions, 252 flow [2021-04-28 23:51:57,269 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=252, PETRI_PLACES=59, PETRI_TRANSITIONS=52} [2021-04-28 23:51:57,269 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -16 predicate places. [2021-04-28 23:51:57,269 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:57,269 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 52 transitions, 252 flow [2021-04-28 23:51:57,270 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 52 transitions, 252 flow [2021-04-28 23:51:57,271 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 52 transitions, 252 flow [2021-04-28 23:51:57,289 INFO L129 PetriNetUnfolder]: 26/138 cut-off events. [2021-04-28 23:51:57,289 INFO L130 PetriNetUnfolder]: For 169/198 co-relation queries the response was YES. [2021-04-28 23:51:57,290 INFO L84 FinitePrefix]: Finished finitePrefix Result has 360 conditions, 138 events. 26/138 cut-off events. For 169/198 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 783 event pairs, 1 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 344. Up to 39 conditions per place. [2021-04-28 23:51:57,293 INFO L146 LiptonReduction]: Number of co-enabled transitions 1236 [2021-04-28 23:51:57,306 INFO L158 LiptonReduction]: Checked pairs total: 217 [2021-04-28 23:51:57,307 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:57,307 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-04-28 23:51:57,308 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 52 transitions, 252 flow [2021-04-28 23:51:57,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:57,309 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:57,309 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:57,310 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 23:51:57,310 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:57,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:57,310 INFO L82 PathProgramCache]: Analyzing trace with hash -262650828, now seen corresponding path program 1 times [2021-04-28 23:51:57,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:57,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762393332] [2021-04-28 23:51:57,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:57,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:57,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:57,358 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:51:57,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:51:57,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:51:57,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762393332] [2021-04-28 23:51:57,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:57,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:51:57,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892614234] [2021-04-28 23:51:57,370 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:51:57,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:57,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:51:57,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:51:57,373 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 159 [2021-04-28 23:51:57,374 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 52 transitions, 252 flow. Second operand has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:57,374 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:57,374 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 159 [2021-04-28 23:51:57,374 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:57,431 INFO L129 PetriNetUnfolder]: 22/138 cut-off events. [2021-04-28 23:51:57,431 INFO L130 PetriNetUnfolder]: For 161/310 co-relation queries the response was YES. [2021-04-28 23:51:57,432 INFO L84 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 138 events. 22/138 cut-off events. For 161/310 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 761 event pairs, 0 based on Foata normal form. 8/96 useless extension candidates. Maximal degree in co-relation 368. Up to 36 conditions per place. [2021-04-28 23:51:57,434 INFO L132 encePairwiseOnDemand]: 152/159 looper letters, 12 selfloop transitions, 15 changer transitions 0/59 dead transitions. [2021-04-28 23:51:57,434 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 59 transitions, 373 flow [2021-04-28 23:51:57,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:51:57,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:51:57,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 439 transitions. [2021-04-28 23:51:57,436 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.690251572327044 [2021-04-28 23:51:57,436 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 439 transitions. [2021-04-28 23:51:57,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 439 transitions. [2021-04-28 23:51:57,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:57,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 439 transitions. [2021-04-28 23:51:57,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:57,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:57,442 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:57,442 INFO L185 Difference]: Start difference. First operand has 59 places, 52 transitions, 252 flow. Second operand 4 states and 439 transitions. [2021-04-28 23:51:57,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 59 transitions, 373 flow [2021-04-28 23:51:57,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 59 transitions, 367 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:51:57,447 INFO L241 Difference]: Finished difference. Result has 64 places, 57 transitions, 371 flow [2021-04-28 23:51:57,447 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=371, PETRI_PLACES=64, PETRI_TRANSITIONS=57} [2021-04-28 23:51:57,448 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -11 predicate places. [2021-04-28 23:51:57,448 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:57,448 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 57 transitions, 371 flow [2021-04-28 23:51:57,449 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 57 transitions, 371 flow [2021-04-28 23:51:57,449 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 57 transitions, 371 flow [2021-04-28 23:51:57,466 INFO L129 PetriNetUnfolder]: 22/136 cut-off events. [2021-04-28 23:51:57,467 INFO L130 PetriNetUnfolder]: For 214/263 co-relation queries the response was YES. [2021-04-28 23:51:57,468 INFO L84 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 136 events. 22/136 cut-off events. For 214/263 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 766 event pairs, 2 based on Foata normal form. 2/85 useless extension candidates. Maximal degree in co-relation 375. Up to 36 conditions per place. [2021-04-28 23:51:57,472 INFO L146 LiptonReduction]: Number of co-enabled transitions 1390 [2021-04-28 23:51:57,488 INFO L158 LiptonReduction]: Checked pairs total: 228 [2021-04-28 23:51:57,488 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:57,488 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40 [2021-04-28 23:51:57,490 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 57 transitions, 371 flow [2021-04-28 23:51:57,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:57,490 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:57,491 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:57,491 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 23:51:57,491 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:57,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:57,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1996260963, now seen corresponding path program 1 times [2021-04-28 23:51:57,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:57,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230088677] [2021-04-28 23:51:57,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:57,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:57,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:51:57,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:57,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:57,535 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:51:57,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:51:57,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:51:57,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230088677] [2021-04-28 23:51:57,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:57,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:51:57,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229176009] [2021-04-28 23:51:57,548 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:51:57,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:57,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:51:57,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:51:57,550 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 159 [2021-04-28 23:51:57,551 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 57 transitions, 371 flow. Second operand has 4 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:57,551 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:57,551 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 159 [2021-04-28 23:51:57,551 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:57,593 INFO L129 PetriNetUnfolder]: 19/129 cut-off events. [2021-04-28 23:51:57,593 INFO L130 PetriNetUnfolder]: For 292/542 co-relation queries the response was YES. [2021-04-28 23:51:57,594 INFO L84 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 129 events. 19/129 cut-off events. For 292/542 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 702 event pairs, 0 based on Foata normal form. 16/97 useless extension candidates. Maximal degree in co-relation 390. Up to 31 conditions per place. [2021-04-28 23:51:57,595 INFO L132 encePairwiseOnDemand]: 152/159 looper letters, 12 selfloop transitions, 18 changer transitions 0/62 dead transitions. [2021-04-28 23:51:57,596 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 62 transitions, 490 flow [2021-04-28 23:51:57,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:51:57,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:51:57,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 438 transitions. [2021-04-28 23:51:57,598 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6886792452830188 [2021-04-28 23:51:57,599 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 438 transitions. [2021-04-28 23:51:57,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 438 transitions. [2021-04-28 23:51:57,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:57,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 438 transitions. [2021-04-28 23:51:57,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 109.5) internal successors, (438), 4 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) [2021-04-28 23:51:57,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:57,604 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:57,604 INFO L185 Difference]: Start difference. First operand has 64 places, 57 transitions, 371 flow. Second operand 4 states and 438 transitions. [2021-04-28 23:51:57,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 62 transitions, 490 flow [2021-04-28 23:51:57,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 62 transitions, 485 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:51:57,610 INFO L241 Difference]: Finished difference. Result has 69 places, 60 transitions, 491 flow [2021-04-28 23:51:57,610 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=491, PETRI_PLACES=69, PETRI_TRANSITIONS=60} [2021-04-28 23:51:57,610 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -6 predicate places. [2021-04-28 23:51:57,610 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:57,611 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 491 flow [2021-04-28 23:51:57,611 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 491 flow [2021-04-28 23:51:57,612 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 491 flow [2021-04-28 23:51:57,628 INFO L129 PetriNetUnfolder]: 19/121 cut-off events. [2021-04-28 23:51:57,629 INFO L130 PetriNetUnfolder]: For 319/372 co-relation queries the response was YES. [2021-04-28 23:51:57,630 INFO L84 FinitePrefix]: Finished finitePrefix Result has 418 conditions, 121 events. 19/121 cut-off events. For 319/372 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 674 event pairs, 0 based on Foata normal form. 3/79 useless extension candidates. Maximal degree in co-relation 394. Up to 31 conditions per place. [2021-04-28 23:51:57,633 INFO L146 LiptonReduction]: Number of co-enabled transitions 1486 [2021-04-28 23:51:57,645 INFO L158 LiptonReduction]: Checked pairs total: 237 [2021-04-28 23:51:57,645 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:57,645 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-04-28 23:51:57,647 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 60 transitions, 491 flow [2021-04-28 23:51:57,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:57,648 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:57,648 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:57,648 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 23:51:57,648 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:57,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:57,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1753475943, now seen corresponding path program 1 times [2021-04-28 23:51:57,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:57,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108311779] [2021-04-28 23:51:57,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:57,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:57,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:57,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:57,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:57,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:57,696 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:51:57,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:51:57,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:51:57,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108311779] [2021-04-28 23:51:57,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:57,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:51:57,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775752306] [2021-04-28 23:51:57,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:51:57,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:57,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:51:57,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:51:57,713 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 159 [2021-04-28 23:51:57,714 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 60 transitions, 491 flow. Second operand has 5 states, 5 states have (on average 105.2) internal successors, (526), 5 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:57,714 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:57,714 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 159 [2021-04-28 23:51:57,714 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:57,775 INFO L129 PetriNetUnfolder]: 38/188 cut-off events. [2021-04-28 23:51:57,775 INFO L130 PetriNetUnfolder]: For 974/1217 co-relation queries the response was YES. [2021-04-28 23:51:57,776 INFO L84 FinitePrefix]: Finished finitePrefix Result has 743 conditions, 188 events. 38/188 cut-off events. For 974/1217 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1087 event pairs, 0 based on Foata normal form. 5/126 useless extension candidates. Maximal degree in co-relation 717. Up to 44 conditions per place. [2021-04-28 23:51:57,777 INFO L132 encePairwiseOnDemand]: 152/159 looper letters, 15 selfloop transitions, 9 changer transitions 29/80 dead transitions. [2021-04-28 23:51:57,778 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 80 transitions, 882 flow [2021-04-28 23:51:57,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:51:57,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:51:57,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 540 transitions. [2021-04-28 23:51:57,781 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6792452830188679 [2021-04-28 23:51:57,781 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 540 transitions. [2021-04-28 23:51:57,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 540 transitions. [2021-04-28 23:51:57,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:57,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 540 transitions. [2021-04-28 23:51:57,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.0) internal successors, (540), 5 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:57,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:57,786 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:57,787 INFO L185 Difference]: Start difference. First operand has 69 places, 60 transitions, 491 flow. Second operand 5 states and 540 transitions. [2021-04-28 23:51:57,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 80 transitions, 882 flow [2021-04-28 23:51:57,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 80 transitions, 857 flow, removed 3 selfloop flow, removed 1 redundant places. [2021-04-28 23:51:57,793 INFO L241 Difference]: Finished difference. Result has 74 places, 46 transitions, 335 flow [2021-04-28 23:51:57,794 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=335, PETRI_PLACES=74, PETRI_TRANSITIONS=46} [2021-04-28 23:51:57,794 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -1 predicate places. [2021-04-28 23:51:57,794 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:57,794 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 46 transitions, 335 flow [2021-04-28 23:51:57,795 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 46 transitions, 335 flow [2021-04-28 23:51:57,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 46 transitions, 335 flow [2021-04-28 23:51:57,806 INFO L129 PetriNetUnfolder]: 7/76 cut-off events. [2021-04-28 23:51:57,806 INFO L130 PetriNetUnfolder]: For 214/217 co-relation queries the response was YES. [2021-04-28 23:51:57,807 INFO L84 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 76 events. 7/76 cut-off events. For 214/217 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 319 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 240. Up to 16 conditions per place. [2021-04-28 23:51:57,809 INFO L146 LiptonReduction]: Number of co-enabled transitions 892 [2021-04-28 23:51:57,817 INFO L158 LiptonReduction]: Checked pairs total: 27 [2021-04-28 23:51:57,817 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:57,817 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-04-28 23:51:57,819 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 46 transitions, 335 flow [2021-04-28 23:51:57,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 105.2) internal successors, (526), 5 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:57,820 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:57,820 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:57,820 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 23:51:57,820 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:57,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:57,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1074566651, now seen corresponding path program 1 times [2021-04-28 23:51:57,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:57,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819548731] [2021-04-28 23:51:57,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:57,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:57,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:57,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:57,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:57,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 23:51:57,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:51:57,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819548731] [2021-04-28 23:51:57,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:57,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:51:57,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855643325] [2021-04-28 23:51:57,871 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:51:57,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:57,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:51:57,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:51:57,873 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 159 [2021-04-28 23:51:57,874 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 46 transitions, 335 flow. Second operand has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:57,874 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:57,874 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 159 [2021-04-28 23:51:57,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:58,812 INFO L129 PetriNetUnfolder]: 4090/6455 cut-off events. [2021-04-28 23:51:58,812 INFO L130 PetriNetUnfolder]: For 5251/5806 co-relation queries the response was YES. [2021-04-28 23:51:58,838 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13728 conditions, 6455 events. 4090/6455 cut-off events. For 5251/5806 co-relation queries the response was YES. Maximal size of possible extension queue 1656. Compared 50775 event pairs, 1845 based on Foata normal form. 84/1729 useless extension candidates. Maximal degree in co-relation 13698. Up to 4234 conditions per place. [2021-04-28 23:51:58,853 INFO L132 encePairwiseOnDemand]: 141/159 looper letters, 20 selfloop transitions, 21 changer transitions 15/81 dead transitions. [2021-04-28 23:51:58,853 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 81 transitions, 517 flow [2021-04-28 23:51:58,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:51:58,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:51:58,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 576 transitions. [2021-04-28 23:51:58,857 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7245283018867924 [2021-04-28 23:51:58,857 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 576 transitions. [2021-04-28 23:51:58,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 576 transitions. [2021-04-28 23:51:58,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:58,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 576 transitions. [2021-04-28 23:51:58,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:58,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:58,863 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:58,863 INFO L185 Difference]: Start difference. First operand has 70 places, 46 transitions, 335 flow. Second operand 5 states and 576 transitions. [2021-04-28 23:51:58,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 81 transitions, 517 flow [2021-04-28 23:51:58,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 81 transitions, 470 flow, removed 3 selfloop flow, removed 8 redundant places. [2021-04-28 23:51:58,872 INFO L241 Difference]: Finished difference. Result has 69 places, 65 transitions, 449 flow [2021-04-28 23:51:58,872 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=449, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2021-04-28 23:51:58,872 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -6 predicate places. [2021-04-28 23:51:58,872 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:58,873 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 65 transitions, 449 flow [2021-04-28 23:51:58,873 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 65 transitions, 449 flow [2021-04-28 23:51:58,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 449 flow [2021-04-28 23:51:59,400 INFO L129 PetriNetUnfolder]: 1859/4055 cut-off events. [2021-04-28 23:51:59,400 INFO L130 PetriNetUnfolder]: For 2325/5716 co-relation queries the response was YES. [2021-04-28 23:51:59,419 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11652 conditions, 4055 events. 1859/4055 cut-off events. For 2325/5716 co-relation queries the response was YES. Maximal size of possible extension queue 1293. Compared 43740 event pairs, 1607 based on Foata normal form. 3/1052 useless extension candidates. Maximal degree in co-relation 11626. Up to 3781 conditions per place. [2021-04-28 23:51:59,466 INFO L146 LiptonReduction]: Number of co-enabled transitions 1150 [2021-04-28 23:51:59,483 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:51:59,483 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:59,484 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 612 [2021-04-28 23:51:59,485 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 449 flow [2021-04-28 23:51:59,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:59,486 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:59,486 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:59,486 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 23:51:59,486 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:59,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:59,487 INFO L82 PathProgramCache]: Analyzing trace with hash -335182575, now seen corresponding path program 1 times [2021-04-28 23:51:59,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:59,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525576289] [2021-04-28 23:51:59,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:59,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:59,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:59,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:59,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:59,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:59,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 23:51:59,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:51:59,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525576289] [2021-04-28 23:51:59,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:59,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:51:59,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242292774] [2021-04-28 23:51:59,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:51:59,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:59,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:51:59,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:51:59,547 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 159 [2021-04-28 23:51:59,548 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 449 flow. Second operand has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:59,549 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:59,549 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 159 [2021-04-28 23:51:59,549 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:52:00,574 INFO L129 PetriNetUnfolder]: 3322/6074 cut-off events. [2021-04-28 23:52:00,574 INFO L130 PetriNetUnfolder]: For 5204/18364 co-relation queries the response was YES. [2021-04-28 23:52:00,599 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22076 conditions, 6074 events. 3322/6074 cut-off events. For 5204/18364 co-relation queries the response was YES. Maximal size of possible extension queue 1944. Compared 55630 event pairs, 459 based on Foata normal form. 111/1962 useless extension candidates. Maximal degree in co-relation 22048. Up to 4469 conditions per place. [2021-04-28 23:52:00,615 INFO L132 encePairwiseOnDemand]: 141/159 looper letters, 13 selfloop transitions, 36 changer transitions 27/101 dead transitions. [2021-04-28 23:52:00,615 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 101 transitions, 778 flow [2021-04-28 23:52:00,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 23:52:00,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 23:52:00,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 802 transitions. [2021-04-28 23:52:00,619 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7205750224618149 [2021-04-28 23:52:00,620 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 802 transitions. [2021-04-28 23:52:00,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 802 transitions. [2021-04-28 23:52:00,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:52:00,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 802 transitions. [2021-04-28 23:52:00,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 114.57142857142857) internal successors, (802), 7 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:00,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:00,628 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:00,628 INFO L185 Difference]: Start difference. First operand has 69 places, 65 transitions, 449 flow. Second operand 7 states and 802 transitions. [2021-04-28 23:52:00,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 101 transitions, 778 flow [2021-04-28 23:52:00,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 101 transitions, 778 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 23:52:00,651 INFO L241 Difference]: Finished difference. Result has 78 places, 73 transitions, 642 flow [2021-04-28 23:52:00,651 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=642, PETRI_PLACES=78, PETRI_TRANSITIONS=73} [2021-04-28 23:52:00,651 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 3 predicate places. [2021-04-28 23:52:00,652 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:52:00,652 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 73 transitions, 642 flow [2021-04-28 23:52:00,652 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 73 transitions, 642 flow [2021-04-28 23:52:00,653 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 73 transitions, 642 flow [2021-04-28 23:52:00,803 INFO L129 PetriNetUnfolder]: 430/1043 cut-off events. [2021-04-28 23:52:00,803 INFO L130 PetriNetUnfolder]: For 3201/4843 co-relation queries the response was YES. [2021-04-28 23:52:00,810 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4834 conditions, 1043 events. 430/1043 cut-off events. For 3201/4843 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 8035 event pairs, 81 based on Foata normal form. 6/455 useless extension candidates. Maximal degree in co-relation 4803. Up to 844 conditions per place. [2021-04-28 23:52:00,827 INFO L146 LiptonReduction]: Number of co-enabled transitions 1052 [2021-04-28 23:52:00,847 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:52:00,847 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:52:00,847 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 195 [2021-04-28 23:52:00,853 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 73 transitions, 642 flow [2021-04-28 23:52:00,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:00,854 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:52:00,854 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:52:00,854 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 23:52:00,854 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:52:00,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:52:00,855 INFO L82 PathProgramCache]: Analyzing trace with hash 826498081, now seen corresponding path program 1 times [2021-04-28 23:52:00,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:52:00,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63240328] [2021-04-28 23:52:00,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:52:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:52:00,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:52:00,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:52:00,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:52:00,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:52:00,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:52:00,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:52:00,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:52:00,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 23:52:00,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:52:00,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63240328] [2021-04-28 23:52:00,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:52:00,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 23:52:00,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613008816] [2021-04-28 23:52:00,964 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 23:52:00,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:52:00,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 23:52:00,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 23:52:00,967 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 159 [2021-04-28 23:52:00,968 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 73 transitions, 642 flow. Second operand has 6 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:00,968 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:52:00,968 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 159 [2021-04-28 23:52:00,968 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:52:01,354 INFO L129 PetriNetUnfolder]: 577/1259 cut-off events. [2021-04-28 23:52:01,354 INFO L130 PetriNetUnfolder]: For 4436/20368 co-relation queries the response was YES. [2021-04-28 23:52:01,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6413 conditions, 1259 events. 577/1259 cut-off events. For 4436/20368 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 9510 event pairs, 0 based on Foata normal form. 120/668 useless extension candidates. Maximal degree in co-relation 6380. Up to 958 conditions per place. [2021-04-28 23:52:01,367 INFO L132 encePairwiseOnDemand]: 143/159 looper letters, 4 selfloop transitions, 45 changer transitions 15/86 dead transitions. [2021-04-28 23:52:01,367 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 86 transitions, 860 flow [2021-04-28 23:52:01,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 23:52:01,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 23:52:01,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 995 transitions. [2021-04-28 23:52:01,371 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6953179594689028 [2021-04-28 23:52:01,371 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 995 transitions. [2021-04-28 23:52:01,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 995 transitions. [2021-04-28 23:52:01,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:52:01,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 995 transitions. [2021-04-28 23:52:01,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 110.55555555555556) internal successors, (995), 9 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:01,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:01,379 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:01,380 INFO L185 Difference]: Start difference. First operand has 75 places, 73 transitions, 642 flow. Second operand 9 states and 995 transitions. [2021-04-28 23:52:01,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 86 transitions, 860 flow [2021-04-28 23:52:01,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 86 transitions, 773 flow, removed 23 selfloop flow, removed 5 redundant places. [2021-04-28 23:52:01,421 INFO L241 Difference]: Finished difference. Result has 81 places, 70 transitions, 631 flow [2021-04-28 23:52:01,421 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=555, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=631, PETRI_PLACES=81, PETRI_TRANSITIONS=70} [2021-04-28 23:52:01,422 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 6 predicate places. [2021-04-28 23:52:01,422 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:52:01,422 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 70 transitions, 631 flow [2021-04-28 23:52:01,422 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 70 transitions, 631 flow [2021-04-28 23:52:01,423 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 70 transitions, 631 flow [2021-04-28 23:52:01,484 INFO L129 PetriNetUnfolder]: 120/490 cut-off events. [2021-04-28 23:52:01,484 INFO L130 PetriNetUnfolder]: For 1357/1599 co-relation queries the response was YES. [2021-04-28 23:52:01,488 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2323 conditions, 490 events. 120/490 cut-off events. For 1357/1599 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 4069 event pairs, 0 based on Foata normal form. 2/189 useless extension candidates. Maximal degree in co-relation 2291. Up to 364 conditions per place. [2021-04-28 23:52:01,497 INFO L146 LiptonReduction]: Number of co-enabled transitions 898 [2021-04-28 23:52:01,512 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:52:01,512 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:52:01,513 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 91 [2021-04-28 23:52:01,514 INFO L480 AbstractCegarLoop]: Abstraction has has 79 places, 70 transitions, 631 flow [2021-04-28 23:52:01,514 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:01,514 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:52:01,515 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:52:01,515 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 23:52:01,515 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:52:01,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:52:01,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1757949543, now seen corresponding path program 1 times [2021-04-28 23:52:01,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:52:01,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909133307] [2021-04-28 23:52:01,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:52:01,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:52:01,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:52:01,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:52:01,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:52:01,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:52:01,559 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:52:01,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:52:01,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:52:01,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909133307] [2021-04-28 23:52:01,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:52:01,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:52:01,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323343988] [2021-04-28 23:52:01,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:52:01,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:52:01,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:52:01,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:52:01,575 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 159 [2021-04-28 23:52:01,576 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 70 transitions, 631 flow. Second operand has 5 states, 5 states have (on average 107.4) internal successors, (537), 5 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:01,576 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:52:01,576 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 159 [2021-04-28 23:52:01,576 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:52:01,716 INFO L129 PetriNetUnfolder]: 200/704 cut-off events. [2021-04-28 23:52:01,716 INFO L130 PetriNetUnfolder]: For 2904/3243 co-relation queries the response was YES. [2021-04-28 23:52:01,720 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3414 conditions, 704 events. 200/704 cut-off events. For 2904/3243 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 6073 event pairs, 1 based on Foata normal form. 35/306 useless extension candidates. Maximal degree in co-relation 3380. Up to 568 conditions per place. [2021-04-28 23:52:01,723 INFO L132 encePairwiseOnDemand]: 153/159 looper letters, 2 selfloop transitions, 5 changer transitions 31/75 dead transitions. [2021-04-28 23:52:01,724 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 75 transitions, 729 flow [2021-04-28 23:52:01,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:52:01,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:52:01,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 545 transitions. [2021-04-28 23:52:01,727 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6855345911949685 [2021-04-28 23:52:01,727 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 545 transitions. [2021-04-28 23:52:01,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 545 transitions. [2021-04-28 23:52:01,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:52:01,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 545 transitions. [2021-04-28 23:52:01,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:01,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:01,732 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:01,732 INFO L185 Difference]: Start difference. First operand has 79 places, 70 transitions, 631 flow. Second operand 5 states and 545 transitions. [2021-04-28 23:52:01,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 75 transitions, 729 flow [2021-04-28 23:52:01,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 75 transitions, 549 flow, removed 38 selfloop flow, removed 10 redundant places. [2021-04-28 23:52:01,759 INFO L241 Difference]: Finished difference. Result has 74 places, 44 transitions, 270 flow [2021-04-28 23:52:01,759 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=270, PETRI_PLACES=74, PETRI_TRANSITIONS=44} [2021-04-28 23:52:01,760 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -1 predicate places. [2021-04-28 23:52:01,760 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:52:01,760 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 44 transitions, 270 flow [2021-04-28 23:52:01,760 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 44 transitions, 270 flow [2021-04-28 23:52:01,761 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 44 transitions, 270 flow [2021-04-28 23:52:01,782 INFO L129 PetriNetUnfolder]: 81/213 cut-off events. [2021-04-28 23:52:01,782 INFO L130 PetriNetUnfolder]: For 690/690 co-relation queries the response was YES. [2021-04-28 23:52:01,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 745 conditions, 213 events. 81/213 cut-off events. For 690/690 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1152 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 718. Up to 109 conditions per place. [2021-04-28 23:52:01,786 INFO L146 LiptonReduction]: Number of co-enabled transitions 238 [2021-04-28 23:52:01,886 INFO L158 LiptonReduction]: Checked pairs total: 18 [2021-04-28 23:52:01,887 INFO L160 LiptonReduction]: Total number of compositions: 3 [2021-04-28 23:52:01,887 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 127 [2021-04-28 23:52:01,888 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 45 transitions, 276 flow [2021-04-28 23:52:01,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 107.4) internal successors, (537), 5 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:01,889 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:52:01,889 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:52:01,889 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 23:52:01,889 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:52:01,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:52:01,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1007317696, now seen corresponding path program 1 times [2021-04-28 23:52:01,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:52:01,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286694583] [2021-04-28 23:52:01,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:52:01,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:52:01,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:52:01,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:52:01,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:52:01,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:52:01,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:52:01,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:52:01,935 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:52:01,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:52:01,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:52:01,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286694583] [2021-04-28 23:52:01,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:52:01,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 23:52:01,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093146021] [2021-04-28 23:52:01,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:52:01,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:52:01,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:52:01,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:52:01,951 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 162 [2021-04-28 23:52:01,952 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 45 transitions, 276 flow. Second operand has 5 states, 5 states have (on average 110.4) internal successors, (552), 5 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:01,952 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:52:01,952 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 162 [2021-04-28 23:52:01,952 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:52:01,990 INFO L129 PetriNetUnfolder]: 90/223 cut-off events. [2021-04-28 23:52:01,990 INFO L130 PetriNetUnfolder]: For 949/950 co-relation queries the response was YES. [2021-04-28 23:52:01,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 709 conditions, 223 events. 90/223 cut-off events. For 949/950 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 1077 event pairs, 0 based on Foata normal form. 28/132 useless extension candidates. Maximal degree in co-relation 692. Up to 109 conditions per place. [2021-04-28 23:52:01,992 INFO L132 encePairwiseOnDemand]: 157/162 looper letters, 0 selfloop transitions, 0 changer transitions 44/44 dead transitions. [2021-04-28 23:52:01,992 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 44 transitions, 272 flow [2021-04-28 23:52:01,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 23:52:01,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 23:52:01,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 661 transitions. [2021-04-28 23:52:01,995 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6800411522633745 [2021-04-28 23:52:01,995 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 661 transitions. [2021-04-28 23:52:01,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 661 transitions. [2021-04-28 23:52:01,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:52:01,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 661 transitions. [2021-04-28 23:52:01,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 110.16666666666667) internal successors, (661), 6 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:02,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:02,001 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:02,002 INFO L185 Difference]: Start difference. First operand has 64 places, 45 transitions, 276 flow. Second operand 6 states and 661 transitions. [2021-04-28 23:52:02,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 44 transitions, 272 flow [2021-04-28 23:52:02,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 44 transitions, 210 flow, removed 2 selfloop flow, removed 21 redundant places. [2021-04-28 23:52:02,005 INFO L241 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2021-04-28 23:52:02,005 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2021-04-28 23:52:02,005 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -28 predicate places. [2021-04-28 23:52:02,005 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:52:02,006 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 0 transitions, 0 flow [2021-04-28 23:52:02,006 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 0 transitions, 0 flow [2021-04-28 23:52:02,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-28 23:52:02,006 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-28 23:52:02,007 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:52:02,007 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-28 23:52:02,007 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-28 23:52:02,007 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:52:02,007 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:52:02,007 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-28 23:52:02,008 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-28 23:52:02,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 110.4) internal successors, (552), 5 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:52:02,009 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 23:52:02,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 11:52:02 BasicIcfg [2021-04-28 23:52:02,014 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 23:52:02,015 INFO L168 Benchmark]: Toolchain (without parser) took 16521.76 ms. Allocated memory was 302.0 MB in the beginning and 551.6 MB in the end (delta: 249.6 MB). Free memory was 276.1 MB in the beginning and 458.3 MB in the end (delta: -182.1 MB). Peak memory consumption was 68.8 MB. Max. memory is 16.0 GB. [2021-04-28 23:52:02,015 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:52:02,016 INFO L168 Benchmark]: CACSL2BoogieTranslator took 842.65 ms. Allocated memory is still 302.0 MB. Free memory was 273.1 MB in the beginning and 283.7 MB in the end (delta: -10.6 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.0 GB. [2021-04-28 23:52:02,016 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.98 ms. Allocated memory is still 302.0 MB. Free memory was 283.7 MB in the beginning and 281.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:52:02,016 INFO L168 Benchmark]: Boogie Preprocessor took 46.08 ms. Allocated memory is still 302.0 MB. Free memory was 281.5 MB in the beginning and 280.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:52:02,017 INFO L168 Benchmark]: RCFGBuilder took 555.56 ms. Allocated memory is still 302.0 MB. Free memory was 280.4 MB in the beginning and 257.4 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:52:02,017 INFO L168 Benchmark]: TraceAbstraction took 14925.03 ms. Allocated memory was 302.0 MB in the beginning and 551.6 MB in the end (delta: 249.6 MB). Free memory was 256.3 MB in the beginning and 458.3 MB in the end (delta: -201.9 MB). Peak memory consumption was 50.8 MB. Max. memory is 16.0 GB. [2021-04-28 23:52:02,019 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 842.65 ms. Allocated memory is still 302.0 MB. Free memory was 273.1 MB in the beginning and 283.7 MB in the end (delta: -10.6 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 83.98 ms. Allocated memory is still 302.0 MB. Free memory was 283.7 MB in the beginning and 281.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 46.08 ms. Allocated memory is still 302.0 MB. Free memory was 281.5 MB in the beginning and 280.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 555.56 ms. Allocated memory is still 302.0 MB. Free memory was 280.4 MB in the beginning and 257.4 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 14925.03 ms. Allocated memory was 302.0 MB in the beginning and 551.6 MB in the end (delta: 249.6 MB). Free memory was 256.3 MB in the beginning and 458.3 MB in the end (delta: -201.9 MB). Peak memory consumption was 50.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8706.2ms, 69 PlacesBefore, 75 PlacesAfterwards, 60 TransitionsBefore, 65 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 6 FixpointIterations, 39 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 84 TotalNumberOfCompositions, 5648 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1822, positive: 1656, positive conditional: 1656, positive unconditional: 0, negative: 166, negative conditional: 166, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 923, positive: 868, positive conditional: 0, positive unconditional: 868, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 923, positive: 868, positive conditional: 0, positive unconditional: 868, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 923, positive: 856, positive conditional: 0, positive unconditional: 856, negative: 67, negative conditional: 0, negative unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 67, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 373, positive: 77, positive conditional: 0, positive unconditional: 77, negative: 296, negative conditional: 0, negative unconditional: 296, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1822, positive: 788, positive conditional: 788, positive unconditional: 0, negative: 111, negative conditional: 111, negative unconditional: 0, unknown: 923, unknown conditional: 923, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 902, Positive cache size: 847, Positive conditional cache size: 847, Positive unconditional cache size: 0, Negative cache size: 55, Negative conditional cache size: 55, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 58.9ms, 76 PlacesBefore, 50 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 1004 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 197 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 26, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 5, positive conditional: 0, positive unconditional: 5, 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: 26, positive: 14, positive conditional: 14, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 908, Positive cache size: 852, Positive conditional cache size: 852, Positive unconditional cache size: 0, Negative cache size: 56, Negative conditional cache size: 56, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.4ms, 54 PlacesBefore, 54 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 1114 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 201 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 19, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 3, positive unconditional: 3, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 3, positive unconditional: 3, 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: 7, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 19, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 915, Positive cache size: 858, Positive conditional cache size: 858, Positive unconditional cache size: 0, Negative cache size: 57, Negative conditional cache size: 57, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.9ms, 59 PlacesBefore, 59 PlacesAfterwards, 52 TransitionsBefore, 52 TransitionsAfterwards, 1236 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 217 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 22, positive: 15, positive conditional: 15, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , 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: 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: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 22, positive: 15, positive conditional: 15, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 916, Positive cache size: 858, Positive conditional cache size: 858, Positive unconditional cache size: 0, Negative cache size: 58, Negative conditional cache size: 58, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.4ms, 64 PlacesBefore, 64 PlacesAfterwards, 57 TransitionsBefore, 57 TransitionsAfterwards, 1390 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 228 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 20, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 20, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 927, Positive cache size: 868, Positive conditional cache size: 868, Positive unconditional cache size: 0, Negative cache size: 59, Negative conditional cache size: 59, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.3ms, 69 PlacesBefore, 69 PlacesAfterwards, 60 TransitionsBefore, 60 TransitionsAfterwards, 1486 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 237 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 15, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 928, Positive cache size: 869, Positive conditional cache size: 869, Positive unconditional cache size: 0, Negative cache size: 59, Negative conditional cache size: 59, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.6ms, 74 PlacesBefore, 70 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 892 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 27 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 929, Positive cache size: 870, Positive conditional cache size: 870, Positive unconditional cache size: 0, Negative cache size: 59, Negative conditional cache size: 59, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 610.7ms, 69 PlacesBefore, 69 PlacesAfterwards, 65 TransitionsBefore, 65 TransitionsAfterwards, 1150 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 929, Positive cache size: 870, Positive conditional cache size: 870, Positive unconditional cache size: 0, Negative cache size: 59, Negative conditional cache size: 59, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 194.6ms, 78 PlacesBefore, 75 PlacesAfterwards, 73 TransitionsBefore, 73 TransitionsAfterwards, 1052 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 929, Positive cache size: 870, Positive conditional cache size: 870, Positive unconditional cache size: 0, Negative cache size: 59, Negative conditional cache size: 59, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 90.0ms, 81 PlacesBefore, 79 PlacesAfterwards, 70 TransitionsBefore, 70 TransitionsAfterwards, 898 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 929, Positive cache size: 870, Positive conditional cache size: 870, Positive unconditional cache size: 0, Negative cache size: 59, Negative conditional cache size: 59, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 126.2ms, 74 PlacesBefore, 64 PlacesAfterwards, 44 TransitionsBefore, 45 TransitionsAfterwards, 238 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 18 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 15, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 15, 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: 15, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ total: 13, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 944, Positive cache size: 885, Positive conditional cache size: 885, Positive unconditional cache size: 0, Negative cache size: 59, Negative conditional cache size: 59, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2ms, 47 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 944, Positive cache size: 885, Positive conditional cache size: 885, Positive unconditional cache size: 0, Negative cache size: 59, Negative conditional cache size: 59, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 11.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 14784.7ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 3462.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8839.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 86 SDtfs, 87 SDslu, 42 SDs, 0 SdLazy, 368 SolverSat, 121 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 400.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 229.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=642occurred in iteration=8, InterpolantAutomatonStates: 56, 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: 30.6ms SsaConstructionTime, 206.9ms SatisfiabilityAnalysisTime, 702.3ms InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 738 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...