/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/safe018_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:07:50,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:07:50,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:07:50,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:07:50,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:07:50,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:07:50,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:07:50,821 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:07:50,822 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:07:50,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:07:50,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:07:50,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:07:50,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:07:50,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:07:50,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:07:50,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:07:50,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:07:50,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:07:50,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:07:50,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:07:50,852 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 [2021-04-29 00:07:50,907 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:07:50,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:07:50,912 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:07:50,912 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:07:50,913 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:07:50,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:07:50,913 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:07:50,913 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:07:50,914 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:07:50,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:07:50,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:07:50,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:07:50,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:07:50,916 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:07:50,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:07:50,917 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:07:50,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:07:50,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:07:50,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:07:50,918 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:07:50,918 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:07:50,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:07:50,918 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:07:50,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:07:50,919 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:07:50,919 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:07:50,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:07:50,920 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:07:50,920 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:07:50,920 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:07:50,920 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:07:51,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:07:51,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:07:51,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:07:51,399 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:07:51,399 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:07:51,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_tso.opt.i [2021-04-29 00:07:51,485 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c9800cb9/ddc318727dac498587f2fb03fa1ccece/FLAGa02bb123c [2021-04-29 00:07:52,208 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:07:52,209 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_tso.opt.i [2021-04-29 00:07:52,230 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c9800cb9/ddc318727dac498587f2fb03fa1ccece/FLAGa02bb123c [2021-04-29 00:07:52,435 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c9800cb9/ddc318727dac498587f2fb03fa1ccece [2021-04-29 00:07:52,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:07:52,498 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:07:52,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:07:52,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:07:52,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:07:52,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:07:52" (1/1) ... [2021-04-29 00:07:52,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@561acdf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:07:52, skipping insertion in model container [2021-04-29 00:07:52,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:07:52" (1/1) ... [2021-04-29 00:07:52,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:07:52,595 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:07:52,783 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/safe018_tso.opt.i[949,962] [2021-04-29 00:07:52,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:07:52,970 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:07:52,990 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/safe018_tso.opt.i[949,962] [2021-04-29 00:07:53,072 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:07:53,218 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:07:53,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:07:53 WrapperNode [2021-04-29 00:07:53,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:07:53,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:07:53,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:07:53,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:07:53,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:07:53" (1/1) ... [2021-04-29 00:07:53,265 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:07:53" (1/1) ... [2021-04-29 00:07:53,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:07:53,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:07:53,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:07:53,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:07:53,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:07:53" (1/1) ... [2021-04-29 00:07:53,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:07:53" (1/1) ... [2021-04-29 00:07:53,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:07:53" (1/1) ... [2021-04-29 00:07:53,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:07:53" (1/1) ... [2021-04-29 00:07:53,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:07:53" (1/1) ... [2021-04-29 00:07:53,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:07:53" (1/1) ... [2021-04-29 00:07:53,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:07:53" (1/1) ... [2021-04-29 00:07:53,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:07:53,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:07:53,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:07:53,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:07:53,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:07:53" (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 [2021-04-29 00:07:53,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:07:53,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:07:53,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:07:53,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:07:53,446 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:07:53,447 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:07:53,447 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:07:53,447 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:07:53,447 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-29 00:07:53,447 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-29 00:07:53,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:07:53,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:07:53,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:07:53,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:07:53,449 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 00:07:53,833 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:07:53,833 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:07:53,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:07:53 BoogieIcfgContainer [2021-04-29 00:07:53,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:07:53,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:07:53,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:07:53,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:07:53,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:07:52" (1/3) ... [2021-04-29 00:07:53,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5960e899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:07:53, skipping insertion in model container [2021-04-29 00:07:53,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:07:53" (2/3) ... [2021-04-29 00:07:53,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5960e899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:07:53, skipping insertion in model container [2021-04-29 00:07:53,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:07:53" (3/3) ... [2021-04-29 00:07:53,845 INFO L111 eAbstractionObserver]: Analyzing ICFG safe018_tso.opt.i [2021-04-29 00:07:53,852 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:07:53,859 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:07:53,860 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:07:53,896 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,896 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,897 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,897 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,897 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,897 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,897 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,898 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,898 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,899 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,899 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,899 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,900 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,900 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,900 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,900 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,901 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,901 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,901 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,901 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,903 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,903 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,903 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,904 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,904 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,904 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,904 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,905 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,905 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,905 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,906 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,906 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,909 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,909 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,910 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,910 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,916 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,916 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,916 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,916 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,919 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,919 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,920 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,920 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:07:53,922 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:07:53,951 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-29 00:07:53,980 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:07:53,980 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:07:53,980 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:07:53,980 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:07:53,980 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:07:53,981 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:07:53,981 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:07:53,981 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:07:53,997 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-04-29 00:07:54,046 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-04-29 00:07:54,046 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:07:54,051 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2021-04-29 00:07:54,052 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-04-29 00:07:54,057 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-04-29 00:07:54,059 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:07:54,078 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-29 00:07:54,083 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-29 00:07:54,085 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-04-29 00:07:54,129 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-04-29 00:07:54,130 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:07:54,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2021-04-29 00:07:54,138 INFO L146 LiptonReduction]: Number of co-enabled transitions 804 [2021-04-29 00:07:57,962 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:07:58,127 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:07:58,279 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:07:58,441 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:07:59,285 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:08:00,457 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-04-29 00:08:00,565 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-29 00:08:00,766 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-04-29 00:08:01,247 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-04-29 00:08:01,482 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-04-29 00:08:02,044 INFO L158 LiptonReduction]: Checked pairs total: 5311 [2021-04-29 00:08:02,045 INFO L160 LiptonReduction]: Total number of compositions: 90 [2021-04-29 00:08:02,049 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7991 [2021-04-29 00:08:02,069 INFO L129 PetriNetUnfolder]: 0/62 cut-off events. [2021-04-29 00:08:02,069 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:08:02,070 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:08:02,071 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:08:02,071 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:08:02,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:08:02,077 INFO L82 PathProgramCache]: Analyzing trace with hash -541709222, now seen corresponding path program 1 times [2021-04-29 00:08:02,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:08:02,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350768421] [2021-04-29 00:08:02,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:08:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:08:02,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:08:02,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:08:02,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:08:02,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350768421] [2021-04-29 00:08:02,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:08:02,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:08:02,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302968753] [2021-04-29 00:08:02,360 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:08:02,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:08:02,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:08:02,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:08:02,380 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 164 [2021-04-29 00:08:02,384 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 67 transitions, 143 flow. Second operand has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:02,384 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:08:02,384 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 164 [2021-04-29 00:08:02,387 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:08:02,455 INFO L129 PetriNetUnfolder]: 5/77 cut-off events. [2021-04-29 00:08:02,455 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:08:02,456 INFO L84 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 77 events. 5/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 360 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 76. Up to 16 conditions per place. [2021-04-29 00:08:02,458 INFO L132 encePairwiseOnDemand]: 150/164 looper letters, 1 selfloop transitions, 2 changer transitions 48/72 dead transitions. [2021-04-29 00:08:02,458 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 72 transitions, 201 flow [2021-04-29 00:08:02,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:08:02,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:08:02,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 407 transitions. [2021-04-29 00:08:02,475 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8272357723577236 [2021-04-29 00:08:02,476 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 407 transitions. [2021-04-29 00:08:02,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 407 transitions. [2021-04-29 00:08:02,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:08:02,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 407 transitions. [2021-04-29 00:08:02,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:02,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:02,545 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:02,547 INFO L185 Difference]: Start difference. First operand has 77 places, 67 transitions, 143 flow. Second operand 3 states and 407 transitions. [2021-04-29 00:08:02,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 72 transitions, 201 flow [2021-04-29 00:08:02,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 72 transitions, 198 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 00:08:02,554 INFO L241 Difference]: Finished difference. Result has 77 places, 24 transitions, 62 flow [2021-04-29 00:08:02,556 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=77, PETRI_TRANSITIONS=24} [2021-04-29 00:08:02,557 INFO L343 CegarLoopForPetriNet]: 77 programPoint places, 0 predicate places. [2021-04-29 00:08:02,557 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:08:02,557 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 24 transitions, 62 flow [2021-04-29 00:08:02,558 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 24 transitions, 62 flow [2021-04-29 00:08:02,558 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 24 transitions, 62 flow [2021-04-29 00:08:02,563 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-04-29 00:08:02,563 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:08:02,563 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 24 events. 0/24 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 45 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-04-29 00:08:02,564 INFO L146 LiptonReduction]: Number of co-enabled transitions 300 [2021-04-29 00:08:02,604 INFO L158 LiptonReduction]: Checked pairs total: 312 [2021-04-29 00:08:02,604 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:08:02,604 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47 [2021-04-29 00:08:02,607 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 24 transitions, 62 flow [2021-04-29 00:08:02,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:02,607 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:08:02,608 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:08:02,608 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:08:02,608 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:08:02,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:08:02,609 INFO L82 PathProgramCache]: Analyzing trace with hash 386855989, now seen corresponding path program 1 times [2021-04-29 00:08:02,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:08:02,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884234044] [2021-04-29 00:08:02,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:08:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:08:02,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:08:02,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:08:02,699 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:08:02,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:08:02,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:08:02,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884234044] [2021-04-29 00:08:02,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:08:02,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:08:02,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722278250] [2021-04-29 00:08:02,714 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:08:02,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:08:02,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:08:02,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:08:02,722 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 164 [2021-04-29 00:08:02,723 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:02,724 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:08:02,724 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 164 [2021-04-29 00:08:02,724 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:08:02,775 INFO L129 PetriNetUnfolder]: 14/96 cut-off events. [2021-04-29 00:08:02,775 INFO L130 PetriNetUnfolder]: For 14/20 co-relation queries the response was YES. [2021-04-29 00:08:02,776 INFO L84 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 96 events. 14/96 cut-off events. For 14/20 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 498 event pairs, 1 based on Foata normal form. 9/72 useless extension candidates. Maximal degree in co-relation 150. Up to 21 conditions per place. [2021-04-29 00:08:02,777 INFO L132 encePairwiseOnDemand]: 158/164 looper letters, 7 selfloop transitions, 9 changer transitions 0/34 dead transitions. [2021-04-29 00:08:02,777 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 34 transitions, 125 flow [2021-04-29 00:08:02,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:08:02,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:08:02,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 558 transitions. [2021-04-29 00:08:02,782 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6804878048780488 [2021-04-29 00:08:02,782 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 558 transitions. [2021-04-29 00:08:02,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 558 transitions. [2021-04-29 00:08:02,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:08:02,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 558 transitions. [2021-04-29 00:08:02,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 111.6) internal successors, (558), 5 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:02,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:02,789 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:02,790 INFO L185 Difference]: Start difference. First operand has 34 places, 24 transitions, 62 flow. Second operand 5 states and 558 transitions. [2021-04-29 00:08:02,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 34 transitions, 125 flow [2021-04-29 00:08:02,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 34 transitions, 115 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:08:02,792 INFO L241 Difference]: Finished difference. Result has 39 places, 31 transitions, 119 flow [2021-04-29 00:08:02,792 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=119, PETRI_PLACES=39, PETRI_TRANSITIONS=31} [2021-04-29 00:08:02,793 INFO L343 CegarLoopForPetriNet]: 77 programPoint places, -38 predicate places. [2021-04-29 00:08:02,793 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:08:02,793 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 31 transitions, 119 flow [2021-04-29 00:08:02,794 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 31 transitions, 119 flow [2021-04-29 00:08:02,794 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 31 transitions, 119 flow [2021-04-29 00:08:02,805 INFO L129 PetriNetUnfolder]: 7/82 cut-off events. [2021-04-29 00:08:02,805 INFO L130 PetriNetUnfolder]: For 17/20 co-relation queries the response was YES. [2021-04-29 00:08:02,806 INFO L84 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 82 events. 7/82 cut-off events. For 17/20 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 433 event pairs, 2 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 145. Up to 15 conditions per place. [2021-04-29 00:08:02,808 INFO L146 LiptonReduction]: Number of co-enabled transitions 388 [2021-04-29 00:08:02,815 INFO L158 LiptonReduction]: Checked pairs total: 131 [2021-04-29 00:08:02,815 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:08:02,815 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-04-29 00:08:02,817 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 31 transitions, 119 flow [2021-04-29 00:08:02,818 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:02,818 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:08:02,818 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:08:02,818 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:08:02,819 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:08:02,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:08:02,819 INFO L82 PathProgramCache]: Analyzing trace with hash -892396425, now seen corresponding path program 1 times [2021-04-29 00:08:02,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:08:02,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738243654] [2021-04-29 00:08:02,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:08:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:08:02,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:08:02,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:08:02,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:08:02,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:08:02,903 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:08:02,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:08:02,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:08:02,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738243654] [2021-04-29 00:08:02,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:08:02,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:08:02,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687803235] [2021-04-29 00:08:02,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:08:02,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:08:02,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:08:02,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:08:02,933 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 164 [2021-04-29 00:08:02,934 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 31 transitions, 119 flow. Second operand has 5 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:02,934 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:08:02,934 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 164 [2021-04-29 00:08:02,934 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:08:02,993 INFO L129 PetriNetUnfolder]: 10/94 cut-off events. [2021-04-29 00:08:02,993 INFO L130 PetriNetUnfolder]: For 60/100 co-relation queries the response was YES. [2021-04-29 00:08:02,996 INFO L84 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 94 events. 10/94 cut-off events. For 60/100 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 521 event pairs, 0 based on Foata normal form. 8/69 useless extension candidates. Maximal degree in co-relation 196. Up to 17 conditions per place. [2021-04-29 00:08:02,997 INFO L132 encePairwiseOnDemand]: 160/164 looper letters, 7 selfloop transitions, 5 changer transitions 5/34 dead transitions. [2021-04-29 00:08:02,997 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 34 transitions, 170 flow [2021-04-29 00:08:02,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:08:02,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:08:03,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 445 transitions. [2021-04-29 00:08:03,001 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6783536585365854 [2021-04-29 00:08:03,001 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 445 transitions. [2021-04-29 00:08:03,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 445 transitions. [2021-04-29 00:08:03,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:08:03,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 445 transitions. [2021-04-29 00:08:03,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:03,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:03,007 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:03,007 INFO L185 Difference]: Start difference. First operand has 39 places, 31 transitions, 119 flow. Second operand 4 states and 445 transitions. [2021-04-29 00:08:03,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 34 transitions, 170 flow [2021-04-29 00:08:03,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 34 transitions, 170 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:08:03,012 INFO L241 Difference]: Finished difference. Result has 44 places, 27 transitions, 120 flow [2021-04-29 00:08:03,012 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=120, PETRI_PLACES=44, PETRI_TRANSITIONS=27} [2021-04-29 00:08:03,012 INFO L343 CegarLoopForPetriNet]: 77 programPoint places, -33 predicate places. [2021-04-29 00:08:03,012 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:08:03,013 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 27 transitions, 120 flow [2021-04-29 00:08:03,014 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 27 transitions, 120 flow [2021-04-29 00:08:03,014 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 27 transitions, 120 flow [2021-04-29 00:08:03,022 INFO L129 PetriNetUnfolder]: 4/43 cut-off events. [2021-04-29 00:08:03,022 INFO L130 PetriNetUnfolder]: For 31/34 co-relation queries the response was YES. [2021-04-29 00:08:03,023 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 43 events. 4/43 cut-off events. For 31/34 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 145 event pairs, 2 based on Foata normal form. 1/32 useless extension candidates. Maximal degree in co-relation 96. Up to 12 conditions per place. [2021-04-29 00:08:03,024 INFO L146 LiptonReduction]: Number of co-enabled transitions 278 [2021-04-29 00:08:03,034 INFO L158 LiptonReduction]: Checked pairs total: 85 [2021-04-29 00:08:03,034 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:08:03,035 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-04-29 00:08:03,037 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 27 transitions, 120 flow [2021-04-29 00:08:03,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:03,037 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:08:03,038 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:08:03,038 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:08:03,038 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:08:03,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:08:03,039 INFO L82 PathProgramCache]: Analyzing trace with hash -892542497, now seen corresponding path program 1 times [2021-04-29 00:08:03,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:08:03,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065816946] [2021-04-29 00:08:03,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:08:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:08:03,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:08:03,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:08:03,092 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:08:03,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:08:03,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:08:03,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065816946] [2021-04-29 00:08:03,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:08:03,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:08:03,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11274984] [2021-04-29 00:08:03,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:08:03,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:08:03,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:08:03,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:08:03,103 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 164 [2021-04-29 00:08:03,104 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 27 transitions, 120 flow. Second operand has 4 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:03,105 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:08:03,105 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 164 [2021-04-29 00:08:03,105 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:08:03,128 INFO L129 PetriNetUnfolder]: 4/41 cut-off events. [2021-04-29 00:08:03,129 INFO L130 PetriNetUnfolder]: For 45/59 co-relation queries the response was YES. [2021-04-29 00:08:03,129 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 41 events. 4/41 cut-off events. For 45/59 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 139 event pairs, 2 based on Foata normal form. 3/31 useless extension candidates. Maximal degree in co-relation 98. Up to 11 conditions per place. [2021-04-29 00:08:03,130 INFO L132 encePairwiseOnDemand]: 161/164 looper letters, 4 selfloop transitions, 4 changer transitions 1/27 dead transitions. [2021-04-29 00:08:03,130 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 27 transitions, 136 flow [2021-04-29 00:08:03,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:08:03,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:08:03,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 358 transitions. [2021-04-29 00:08:03,132 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7276422764227642 [2021-04-29 00:08:03,132 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 358 transitions. [2021-04-29 00:08:03,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 358 transitions. [2021-04-29 00:08:03,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:08:03,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 358 transitions. [2021-04-29 00:08:03,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:03,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:03,137 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:03,137 INFO L185 Difference]: Start difference. First operand has 43 places, 27 transitions, 120 flow. Second operand 3 states and 358 transitions. [2021-04-29 00:08:03,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 27 transitions, 136 flow [2021-04-29 00:08:03,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 27 transitions, 115 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-04-29 00:08:03,139 INFO L241 Difference]: Finished difference. Result has 41 places, 26 transitions, 111 flow [2021-04-29 00:08:03,140 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=111, PETRI_PLACES=41, PETRI_TRANSITIONS=26} [2021-04-29 00:08:03,140 INFO L343 CegarLoopForPetriNet]: 77 programPoint places, -36 predicate places. [2021-04-29 00:08:03,140 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:08:03,140 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 26 transitions, 111 flow [2021-04-29 00:08:03,141 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 26 transitions, 111 flow [2021-04-29 00:08:03,141 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 26 transitions, 111 flow [2021-04-29 00:08:03,147 INFO L129 PetriNetUnfolder]: 4/42 cut-off events. [2021-04-29 00:08:03,147 INFO L130 PetriNetUnfolder]: For 14/17 co-relation queries the response was YES. [2021-04-29 00:08:03,147 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 42 events. 4/42 cut-off events. For 14/17 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 122 event pairs, 2 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 83. Up to 11 conditions per place. [2021-04-29 00:08:03,148 INFO L146 LiptonReduction]: Number of co-enabled transitions 246 [2021-04-29 00:08:03,155 INFO L158 LiptonReduction]: Checked pairs total: 78 [2021-04-29 00:08:03,156 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:08:03,156 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-04-29 00:08:03,158 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 26 transitions, 111 flow [2021-04-29 00:08:03,158 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:03,158 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:08:03,159 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:08:03,159 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:08:03,159 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:08:03,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:08:03,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1702112687, now seen corresponding path program 1 times [2021-04-29 00:08:03,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:08:03,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522572756] [2021-04-29 00:08:03,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:08:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:08:03,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:08:03,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:08:03,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:08:03,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:08:03,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:08:03,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522572756] [2021-04-29 00:08:03,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:08:03,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:08:03,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879794883] [2021-04-29 00:08:03,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:08:03,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:08:03,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:08:03,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:08:03,217 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 164 [2021-04-29 00:08:03,220 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 26 transitions, 111 flow. Second operand has 4 states, 4 states have (on average 116.75) internal successors, (467), 4 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:03,221 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:08:03,221 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 164 [2021-04-29 00:08:03,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:08:03,243 INFO L129 PetriNetUnfolder]: 4/45 cut-off events. [2021-04-29 00:08:03,243 INFO L130 PetriNetUnfolder]: For 65/70 co-relation queries the response was YES. [2021-04-29 00:08:03,244 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 45 events. 4/45 cut-off events. For 65/70 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 143 event pairs, 2 based on Foata normal form. 3/33 useless extension candidates. Maximal degree in co-relation 97. Up to 11 conditions per place. [2021-04-29 00:08:03,244 INFO L132 encePairwiseOnDemand]: 160/164 looper letters, 1 selfloop transitions, 3 changer transitions 5/27 dead transitions. [2021-04-29 00:08:03,245 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 27 transitions, 132 flow [2021-04-29 00:08:03,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:08:03,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:08:03,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 471 transitions. [2021-04-29 00:08:03,247 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7179878048780488 [2021-04-29 00:08:03,247 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 471 transitions. [2021-04-29 00:08:03,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 471 transitions. [2021-04-29 00:08:03,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:08:03,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 471 transitions. [2021-04-29 00:08:03,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:03,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:03,253 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:03,253 INFO L185 Difference]: Start difference. First operand has 40 places, 26 transitions, 111 flow. Second operand 4 states and 471 transitions. [2021-04-29 00:08:03,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 27 transitions, 132 flow [2021-04-29 00:08:03,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 27 transitions, 122 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:08:03,259 INFO L241 Difference]: Finished difference. Result has 43 places, 22 transitions, 94 flow [2021-04-29 00:08:03,259 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=43, PETRI_TRANSITIONS=22} [2021-04-29 00:08:03,259 INFO L343 CegarLoopForPetriNet]: 77 programPoint places, -34 predicate places. [2021-04-29 00:08:03,259 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:08:03,259 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 22 transitions, 94 flow [2021-04-29 00:08:03,260 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 22 transitions, 94 flow [2021-04-29 00:08:03,260 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 22 transitions, 94 flow [2021-04-29 00:08:03,264 INFO L129 PetriNetUnfolder]: 1/24 cut-off events. [2021-04-29 00:08:03,264 INFO L130 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2021-04-29 00:08:03,265 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 24 events. 1/24 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 30 event pairs, 1 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 54. Up to 6 conditions per place. [2021-04-29 00:08:03,266 INFO L146 LiptonReduction]: Number of co-enabled transitions 152 [2021-04-29 00:08:03,269 INFO L158 LiptonReduction]: Checked pairs total: 14 [2021-04-29 00:08:03,269 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:08:03,269 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-04-29 00:08:03,274 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 22 transitions, 94 flow [2021-04-29 00:08:03,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 116.75) internal successors, (467), 4 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:03,276 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:08:03,276 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:08:03,277 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:08:03,277 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:08:03,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:08:03,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1258348954, now seen corresponding path program 1 times [2021-04-29 00:08:03,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:08:03,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058959341] [2021-04-29 00:08:03,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:08:03,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:08:03,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:08:03,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:08:03,399 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:08:03,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:08:03,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:08:03,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058959341] [2021-04-29 00:08:03,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:08:03,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:08:03,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578248141] [2021-04-29 00:08:03,412 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:08:03,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:08:03,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:08:03,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:08:03,413 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 164 [2021-04-29 00:08:03,414 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 22 transitions, 94 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) [2021-04-29 00:08:03,414 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:08:03,415 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 164 [2021-04-29 00:08:03,415 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:08:03,579 INFO L129 PetriNetUnfolder]: 456/735 cut-off events. [2021-04-29 00:08:03,579 INFO L130 PetriNetUnfolder]: For 3195/3458 co-relation queries the response was YES. [2021-04-29 00:08:03,581 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1975 conditions, 735 events. 456/735 cut-off events. For 3195/3458 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 3999 event pairs, 240 based on Foata normal form. 66/375 useless extension candidates. Maximal degree in co-relation 1958. Up to 565 conditions per place. [2021-04-29 00:08:03,587 INFO L132 encePairwiseOnDemand]: 152/164 looper letters, 11 selfloop transitions, 10 changer transitions 19/50 dead transitions. [2021-04-29 00:08:03,587 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 50 transitions, 230 flow [2021-04-29 00:08:03,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:08:03,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:08:03,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 572 transitions. [2021-04-29 00:08:03,590 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.697560975609756 [2021-04-29 00:08:03,590 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 572 transitions. [2021-04-29 00:08:03,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 572 transitions. [2021-04-29 00:08:03,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:08:03,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 572 transitions. [2021-04-29 00:08:03,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.4) internal successors, (572), 5 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:03,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:03,596 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:03,596 INFO L185 Difference]: Start difference. First operand has 42 places, 22 transitions, 94 flow. Second operand 5 states and 572 transitions. [2021-04-29 00:08:03,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 50 transitions, 230 flow [2021-04-29 00:08:03,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 50 transitions, 204 flow, removed 4 selfloop flow, removed 9 redundant places. [2021-04-29 00:08:03,603 INFO L241 Difference]: Finished difference. Result has 40 places, 31 transitions, 158 flow [2021-04-29 00:08:03,603 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=158, PETRI_PLACES=40, PETRI_TRANSITIONS=31} [2021-04-29 00:08:03,604 INFO L343 CegarLoopForPetriNet]: 77 programPoint places, -37 predicate places. [2021-04-29 00:08:03,604 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:08:03,604 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 31 transitions, 158 flow [2021-04-29 00:08:03,604 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 31 transitions, 158 flow [2021-04-29 00:08:03,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 31 transitions, 158 flow [2021-04-29 00:08:03,665 INFO L129 PetriNetUnfolder]: 375/590 cut-off events. [2021-04-29 00:08:03,665 INFO L130 PetriNetUnfolder]: For 894/975 co-relation queries the response was YES. [2021-04-29 00:08:03,667 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1940 conditions, 590 events. 375/590 cut-off events. For 894/975 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 2930 event pairs, 206 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 1928. Up to 493 conditions per place. [2021-04-29 00:08:03,672 INFO L146 LiptonReduction]: Number of co-enabled transitions 84 [2021-04-29 00:08:03,682 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:08:03,683 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:08:03,683 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 79 [2021-04-29 00:08:03,684 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 31 transitions, 158 flow [2021-04-29 00:08:03,684 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) [2021-04-29 00:08:03,685 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:08:03,685 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:08:03,685 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:08:03,685 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:08:03,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:08:03,686 INFO L82 PathProgramCache]: Analyzing trace with hash 354885110, now seen corresponding path program 1 times [2021-04-29 00:08:03,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:08:03,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746407854] [2021-04-29 00:08:03,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:08:03,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:08:03,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:08:03,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:08:03,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:08:03,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:08:03,735 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:08:03,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:08:03,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:08:03,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746407854] [2021-04-29 00:08:03,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:08:03,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:08:03,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061288263] [2021-04-29 00:08:03,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:08:03,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:08:03,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:08:03,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:08:03,746 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 164 [2021-04-29 00:08:03,747 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 158 flow. Second operand has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:03,747 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:08:03,747 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 164 [2021-04-29 00:08:03,747 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:08:03,908 INFO L129 PetriNetUnfolder]: 333/587 cut-off events. [2021-04-29 00:08:03,908 INFO L130 PetriNetUnfolder]: For 1661/2597 co-relation queries the response was YES. [2021-04-29 00:08:03,910 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2455 conditions, 587 events. 333/587 cut-off events. For 1661/2597 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 3126 event pairs, 63 based on Foata normal form. 74/336 useless extension candidates. Maximal degree in co-relation 2441. Up to 505 conditions per place. [2021-04-29 00:08:03,914 INFO L132 encePairwiseOnDemand]: 152/164 looper letters, 11 selfloop transitions, 19 changer transitions 19/59 dead transitions. [2021-04-29 00:08:03,914 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 59 transitions, 422 flow [2021-04-29 00:08:03,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 00:08:03,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 00:08:03,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 687 transitions. [2021-04-29 00:08:03,918 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.698170731707317 [2021-04-29 00:08:03,918 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 687 transitions. [2021-04-29 00:08:03,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 687 transitions. [2021-04-29 00:08:03,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:08:03,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 687 transitions. [2021-04-29 00:08:03,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 114.5) internal successors, (687), 6 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:03,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:03,924 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:03,924 INFO L185 Difference]: Start difference. First operand has 38 places, 31 transitions, 158 flow. Second operand 6 states and 687 transitions. [2021-04-29 00:08:03,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 59 transitions, 422 flow [2021-04-29 00:08:03,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 59 transitions, 410 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-29 00:08:03,936 INFO L241 Difference]: Finished difference. Result has 44 places, 40 transitions, 298 flow [2021-04-29 00:08:03,936 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=298, PETRI_PLACES=44, PETRI_TRANSITIONS=40} [2021-04-29 00:08:03,937 INFO L343 CegarLoopForPetriNet]: 77 programPoint places, -33 predicate places. [2021-04-29 00:08:03,937 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:08:03,937 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 40 transitions, 298 flow [2021-04-29 00:08:03,937 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 40 transitions, 298 flow [2021-04-29 00:08:03,938 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 40 transitions, 298 flow [2021-04-29 00:08:03,990 INFO L129 PetriNetUnfolder]: 252/443 cut-off events. [2021-04-29 00:08:03,990 INFO L130 PetriNetUnfolder]: For 1255/1506 co-relation queries the response was YES. [2021-04-29 00:08:03,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2177 conditions, 443 events. 252/443 cut-off events. For 1255/1506 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 2245 event pairs, 63 based on Foata normal form. 2/220 useless extension candidates. Maximal degree in co-relation 2162. Up to 361 conditions per place. [2021-04-29 00:08:03,996 INFO L146 LiptonReduction]: Number of co-enabled transitions 80 [2021-04-29 00:08:04,005 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:08:04,005 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:08:04,006 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 69 [2021-04-29 00:08:04,008 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 40 transitions, 298 flow [2021-04-29 00:08:04,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:04,009 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:08:04,009 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:08:04,009 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 00:08:04,009 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:08:04,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:08:04,010 INFO L82 PathProgramCache]: Analyzing trace with hash 339328684, now seen corresponding path program 1 times [2021-04-29 00:08:04,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:08:04,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648295721] [2021-04-29 00:08:04,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:08:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:08:04,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:08:04,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:08:04,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:08:04,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:08:04,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:08:04,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:08:04,105 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:08:04,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:08:04,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:08:04,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648295721] [2021-04-29 00:08:04,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:08:04,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:08:04,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192099377] [2021-04-29 00:08:04,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 00:08:04,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:08:04,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 00:08:04,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-29 00:08:04,118 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 164 [2021-04-29 00:08:04,119 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 40 transitions, 298 flow. Second operand has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:04,119 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:08:04,119 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 164 [2021-04-29 00:08:04,119 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:08:04,309 INFO L129 PetriNetUnfolder]: 135/317 cut-off events. [2021-04-29 00:08:04,309 INFO L130 PetriNetUnfolder]: For 1506/2172 co-relation queries the response was YES. [2021-04-29 00:08:04,310 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1801 conditions, 317 events. 135/317 cut-off events. For 1506/2172 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 1786 event pairs, 0 based on Foata normal form. 64/216 useless extension candidates. Maximal degree in co-relation 1784. Up to 280 conditions per place. [2021-04-29 00:08:04,312 INFO L132 encePairwiseOnDemand]: 152/164 looper letters, 2 selfloop transitions, 28 changer transitions 10/50 dead transitions. [2021-04-29 00:08:04,312 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 50 transitions, 474 flow [2021-04-29 00:08:04,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:08:04,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:08:04,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 784 transitions. [2021-04-29 00:08:04,318 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6829268292682927 [2021-04-29 00:08:04,318 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 784 transitions. [2021-04-29 00:08:04,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 784 transitions. [2021-04-29 00:08:04,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:08:04,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 784 transitions. [2021-04-29 00:08:04,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 112.0) internal successors, (784), 7 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:04,325 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 164.0) internal successors, (1312), 8 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:04,326 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 164.0) internal successors, (1312), 8 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:04,326 INFO L185 Difference]: Start difference. First operand has 42 places, 40 transitions, 298 flow. Second operand 7 states and 784 transitions. [2021-04-29 00:08:04,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 50 transitions, 474 flow [2021-04-29 00:08:04,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 50 transitions, 374 flow, removed 40 selfloop flow, removed 4 redundant places. [2021-04-29 00:08:04,338 INFO L241 Difference]: Finished difference. Result has 47 places, 40 transitions, 296 flow [2021-04-29 00:08:04,338 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=296, PETRI_PLACES=47, PETRI_TRANSITIONS=40} [2021-04-29 00:08:04,338 INFO L343 CegarLoopForPetriNet]: 77 programPoint places, -30 predicate places. [2021-04-29 00:08:04,338 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:08:04,339 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 40 transitions, 296 flow [2021-04-29 00:08:04,339 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 40 transitions, 296 flow [2021-04-29 00:08:04,340 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 40 transitions, 296 flow [2021-04-29 00:08:04,366 INFO L129 PetriNetUnfolder]: 81/209 cut-off events. [2021-04-29 00:08:04,367 INFO L130 PetriNetUnfolder]: For 577/644 co-relation queries the response was YES. [2021-04-29 00:08:04,367 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1015 conditions, 209 events. 81/209 cut-off events. For 577/644 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1154 event pairs, 0 based on Foata normal form. 1/105 useless extension candidates. Maximal degree in co-relation 999. Up to 163 conditions per place. [2021-04-29 00:08:04,370 INFO L146 LiptonReduction]: Number of co-enabled transitions 76 [2021-04-29 00:08:04,590 INFO L158 LiptonReduction]: Checked pairs total: 108 [2021-04-29 00:08:04,590 INFO L160 LiptonReduction]: Total number of compositions: 9 [2021-04-29 00:08:04,590 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 252 [2021-04-29 00:08:04,593 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 40 transitions, 296 flow [2021-04-29 00:08:04,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:04,594 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:08:04,594 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:08:04,594 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-29 00:08:04,594 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:08:04,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:08:04,595 INFO L82 PathProgramCache]: Analyzing trace with hash 2124721160, now seen corresponding path program 1 times [2021-04-29 00:08:04,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:08:04,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385554489] [2021-04-29 00:08:04,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:08:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:08:04,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:08:04,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:08:04,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:08:04,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:08:04,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:08:04,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:08:04,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:08:04,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385554489] [2021-04-29 00:08:04,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:08:04,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:08:04,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657379828] [2021-04-29 00:08:04,683 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:08:04,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:08:04,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:08:04,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:08:04,685 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 173 [2021-04-29 00:08:04,686 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 40 transitions, 296 flow. Second operand has 4 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:04,686 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:08:04,686 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 173 [2021-04-29 00:08:04,687 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:08:04,735 INFO L129 PetriNetUnfolder]: 81/182 cut-off events. [2021-04-29 00:08:04,736 INFO L130 PetriNetUnfolder]: For 750/763 co-relation queries the response was YES. [2021-04-29 00:08:04,736 INFO L84 FinitePrefix]: Finished finitePrefix Result has 879 conditions, 182 events. 81/182 cut-off events. For 750/763 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 842 event pairs, 0 based on Foata normal form. 28/110 useless extension candidates. Maximal degree in co-relation 867. Up to 163 conditions per place. [2021-04-29 00:08:04,737 INFO L132 encePairwiseOnDemand]: 161/173 looper letters, 0 selfloop transitions, 0 changer transitions 39/39 dead transitions. [2021-04-29 00:08:04,737 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 39 transitions, 308 flow [2021-04-29 00:08:04,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:08:04,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:08:04,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 478 transitions. [2021-04-29 00:08:04,740 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6907514450867052 [2021-04-29 00:08:04,740 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 478 transitions. [2021-04-29 00:08:04,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 478 transitions. [2021-04-29 00:08:04,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:08:04,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 478 transitions. [2021-04-29 00:08:04,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 119.5) internal successors, (478), 4 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:04,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 173.0) internal successors, (865), 5 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:04,747 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 173.0) internal successors, (865), 5 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:04,747 INFO L185 Difference]: Start difference. First operand has 45 places, 40 transitions, 296 flow. Second operand 4 states and 478 transitions. [2021-04-29 00:08:04,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 39 transitions, 308 flow [2021-04-29 00:08:04,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 39 transitions, 210 flow, removed 27 selfloop flow, removed 7 redundant places. [2021-04-29 00:08:04,752 INFO L241 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2021-04-29 00:08:04,753 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2021-04-29 00:08:04,753 INFO L343 CegarLoopForPetriNet]: 77 programPoint places, -37 predicate places. [2021-04-29 00:08:04,753 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:08:04,753 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 0 transitions, 0 flow [2021-04-29 00:08:04,754 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 0 transitions, 0 flow [2021-04-29 00:08:04,754 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:08:04,754 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:08:04,754 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:08:04,755 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. [2021-04-29 00:08:04,755 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:08:04,755 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:08:04,755 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:08:04,756 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:08:04,759 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:08:04,759 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:04,759 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-29 00:08:04,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:08:04 BasicIcfg [2021-04-29 00:08:04,764 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:08:04,766 INFO L168 Benchmark]: Toolchain (without parser) took 12324.95 ms. Allocated memory was 312.5 MB in the beginning and 450.9 MB in the end (delta: 138.4 MB). Free memory was 285.7 MB in the beginning and 343.6 MB in the end (delta: -58.0 MB). Peak memory consumption was 83.4 MB. Max. memory is 16.0 GB. [2021-04-29 00:08:04,767 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 312.5 MB. Free memory was 280.8 MB in the beginning and 280.7 MB in the end (delta: 65.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:08:04,768 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.94 ms. Allocated memory is still 312.5 MB. Free memory was 282.4 MB in the beginning and 281.6 MB in the end (delta: 843.8 kB). Peak memory consumption was 24.8 MB. Max. memory is 16.0 GB. [2021-04-29 00:08:04,771 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.03 ms. Allocated memory is still 312.5 MB. Free memory was 281.6 MB in the beginning and 279.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:08:04,771 INFO L168 Benchmark]: Boogie Preprocessor took 54.65 ms. Allocated memory is still 312.5 MB. Free memory was 279.5 MB in the beginning and 278.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:08:04,774 INFO L168 Benchmark]: RCFGBuilder took 484.04 ms. Allocated memory is still 312.5 MB. Free memory was 278.5 MB in the beginning and 255.4 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:08:04,775 INFO L168 Benchmark]: TraceAbstraction took 10926.94 ms. Allocated memory was 312.5 MB in the beginning and 450.9 MB in the end (delta: 138.4 MB). Free memory was 254.3 MB in the beginning and 343.6 MB in the end (delta: -89.3 MB). Peak memory consumption was 52.3 MB. Max. memory is 16.0 GB. [2021-04-29 00:08:04,783 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 312.5 MB. Free memory was 280.8 MB in the beginning and 280.7 MB in the end (delta: 65.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 718.94 ms. Allocated memory is still 312.5 MB. Free memory was 282.4 MB in the beginning and 281.6 MB in the end (delta: 843.8 kB). Peak memory consumption was 24.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 75.03 ms. Allocated memory is still 312.5 MB. Free memory was 281.6 MB in the beginning and 279.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 54.65 ms. Allocated memory is still 312.5 MB. Free memory was 279.5 MB in the beginning and 278.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 484.04 ms. Allocated memory is still 312.5 MB. Free memory was 278.5 MB in the beginning and 255.4 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 10926.94 ms. Allocated memory was 312.5 MB in the beginning and 450.9 MB in the end (delta: 138.4 MB). Free memory was 254.3 MB in the beginning and 343.6 MB in the end (delta: -89.3 MB). Peak memory consumption was 52.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7962.1ms, 68 PlacesBefore, 77 PlacesAfterwards, 59 TransitionsBefore, 67 TransitionsAfterwards, 804 CoEnabledTransitionPairs, 6 FixpointIterations, 44 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 90 TotalNumberOfCompositions, 5311 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1443, positive: 1283, positive conditional: 1283, positive unconditional: 0, negative: 160, negative conditional: 160, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 782, positive: 723, positive conditional: 0, positive unconditional: 723, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 782, positive: 723, positive conditional: 0, positive unconditional: 723, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 782, positive: 697, positive conditional: 0, positive unconditional: 697, negative: 85, negative conditional: 0, negative unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 85, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 427, positive: 131, positive conditional: 0, positive unconditional: 131, negative: 296, negative conditional: 0, negative unconditional: 296, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1443, positive: 560, positive conditional: 560, positive unconditional: 0, negative: 101, negative conditional: 101, negative unconditional: 0, unknown: 782, unknown conditional: 782, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 777, Positive cache size: 718, Positive conditional cache size: 718, 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: 46.6ms, 77 PlacesBefore, 34 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 300 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 312 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 107, positive: 86, positive conditional: 86, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 0, positive unconditional: 13, 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: 13, positive: 13, positive conditional: 0, positive unconditional: 13, 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: 13, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 35, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 107, positive: 73, positive conditional: 73, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 790, Positive cache size: 731, Positive conditional cache size: 731, 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: 21.6ms, 39 PlacesBefore, 39 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 388 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 131 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 52, positive: 45, positive conditional: 45, 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: 13, positive: 12, positive conditional: 4, positive unconditional: 8, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, positive: 12, positive conditional: 4, positive unconditional: 8, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 52, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 803, Positive cache size: 743, Positive conditional cache size: 743, Positive unconditional cache size: 0, Negative cache size: 60, Negative conditional cache size: 60, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.9ms, 44 PlacesBefore, 43 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 278 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 85 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 54, positive: 47, positive conditional: 47, 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: 8, positive: 8, positive conditional: 2, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 2, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 54, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 811, Positive cache size: 751, Positive conditional cache size: 751, Positive unconditional cache size: 0, Negative cache size: 60, Negative conditional cache size: 60, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.1ms, 41 PlacesBefore, 40 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 246 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 78 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 30, positive: 23, positive conditional: 23, 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: 9, positive: 8, positive conditional: 5, 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: 9, positive: 8, positive conditional: 5, 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: 9, positive: 8, positive conditional: 0, positive unconditional: 8, 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: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 30, positive: 15, positive conditional: 15, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 9, unknown conditional: 9, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 820, Positive cache size: 759, Positive conditional cache size: 759, Positive unconditional cache size: 0, Negative cache size: 61, Negative conditional cache size: 61, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.0ms, 43 PlacesBefore, 42 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 152 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 14 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , 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: 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] , Statistics on independence cache: Total cache size (in pairs): 820, Positive cache size: 759, Positive conditional cache size: 759, Positive unconditional cache size: 0, Negative cache size: 61, Negative conditional cache size: 61, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 78.1ms, 40 PlacesBefore, 38 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 84 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): 820, Positive cache size: 759, Positive conditional cache size: 759, Positive unconditional cache size: 0, Negative cache size: 61, Negative conditional cache size: 61, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 68.2ms, 44 PlacesBefore, 42 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 80 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): 820, Positive cache size: 759, Positive conditional cache size: 759, Positive unconditional cache size: 0, Negative cache size: 61, Negative conditional cache size: 61, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 251.0ms, 47 PlacesBefore, 45 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 76 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 9 TotalNumberOfCompositions, 108 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 108, positive: 108, positive conditional: 108, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 108, positive: 96, positive conditional: 96, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 832, Positive cache size: 771, Positive conditional cache size: 771, Positive unconditional cache size: 0, Negative cache size: 61, Negative conditional cache size: 61, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.7ms, 40 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): 832, Positive cache size: 771, Positive conditional cache size: 771, Positive unconditional cache size: 0, Negative cache size: 61, Negative conditional cache size: 61, 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, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 11.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 10785.7ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1107.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8076.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 50 SDtfs, 53 SDslu, 24 SDs, 0 SdLazy, 286 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 265.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 128.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=7, InterpolantAutomatonStates: 41, 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: 22.3ms SsaConstructionTime, 226.1ms SatisfiabilityAnalysisTime, 550.6ms InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 334 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...