/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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 02:48:46,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 02:48:46,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 02:48:46,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-11 02:48:46,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 02:48:46,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 02:48:46,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 02:48:46,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 02:48:46,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 02:48:46,068 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 02:48:46,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 02:48:46,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 02:48:46,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 02:48:46,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 02:48:46,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 02:48:46,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 02:48:46,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 02:48:46,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 02:48:46,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 02:48:46,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 02:48:46,089 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-NoLbe.epf [2021-03-11 02:48:46,118 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 02:48:46,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 02:48:46,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 02:48:46,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 02:48:46,121 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 02:48:46,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 02:48:46,121 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 02:48:46,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 02:48:46,121 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 02:48:46,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 02:48:46,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 02:48:46,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 02:48:46,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 02:48:46,122 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 02:48:46,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 02:48:46,122 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 02:48:46,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 02:48:46,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 02:48:46,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 02:48:46,123 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 02:48:46,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 02:48:46,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 02:48:46,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 02:48:46,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 02:48:46,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 02:48:46,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 02:48:46,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 02:48:46,123 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-11 02:48:46,124 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 02:48:46,124 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 02:48:46,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 02:48:46,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 02:48:46,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 02:48:46,370 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 02:48:46,370 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 02:48:46,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2021-03-11 02:48:46,408 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5ecc7596/90c9646d23b448da918b55d6635b2c7e/FLAG075bbb91e [2021-03-11 02:48:46,862 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 02:48:46,862 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2021-03-11 02:48:46,880 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5ecc7596/90c9646d23b448da918b55d6635b2c7e/FLAG075bbb91e [2021-03-11 02:48:46,896 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5ecc7596/90c9646d23b448da918b55d6635b2c7e [2021-03-11 02:48:46,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 02:48:46,904 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 02:48:46,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 02:48:46,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 02:48:46,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 02:48:46,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 02:48:46" (1/1) ... [2021-03-11 02:48:46,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@567c1285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:48:46, skipping insertion in model container [2021-03-11 02:48:46,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 02:48:46" (1/1) ... [2021-03-11 02:48:46,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 02:48:46,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 02:48:47,082 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-11 02:48:47,511 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i[75009,75022] [2021-03-11 02:48:47,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 02:48:47,540 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 02:48:47,548 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-11 02:48:47,575 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i[75009,75022] [2021-03-11 02:48:47,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 02:48:47,747 INFO L208 MainTranslator]: Completed translation [2021-03-11 02:48:47,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:48:47 WrapperNode [2021-03-11 02:48:47,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 02:48:47,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 02:48:47,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 02:48:47,748 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 02:48:47,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:48:47" (1/1) ... [2021-03-11 02:48:47,770 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:48:47" (1/1) ... [2021-03-11 02:48:47,787 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 02:48:47,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 02:48:47,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 02:48:47,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 02:48:47,793 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:48:47" (1/1) ... [2021-03-11 02:48:47,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:48:47" (1/1) ... [2021-03-11 02:48:47,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:48:47" (1/1) ... [2021-03-11 02:48:47,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:48:47" (1/1) ... [2021-03-11 02:48:47,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:48:47" (1/1) ... [2021-03-11 02:48:47,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:48:47" (1/1) ... [2021-03-11 02:48:47,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:48:47" (1/1) ... [2021-03-11 02:48:47,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 02:48:47,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 02:48:47,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 02:48:47,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 02:48:47,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:48:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 02:48:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 02:48:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 02:48:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 02:48:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-11 02:48:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-03-11 02:48:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 02:48:47,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 02:48:47,875 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-03-11 02:48:47,875 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-03-11 02:48:47,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 02:48:47,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 02:48:47,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 02:48:47,876 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 02:48:48,258 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 02:48:48,259 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-03-11 02:48:48,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:48:48 BoogieIcfgContainer [2021-03-11 02:48:48,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 02:48:48,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 02:48:48,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 02:48:48,264 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 02:48:48,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 02:48:46" (1/3) ... [2021-03-11 02:48:48,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea1b07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:48:48, skipping insertion in model container [2021-03-11 02:48:48,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:48:47" (2/3) ... [2021-03-11 02:48:48,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea1b07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:48:48, skipping insertion in model container [2021-03-11 02:48:48,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:48:48" (3/3) ... [2021-03-11 02:48:48,266 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2021-03-11 02:48:48,272 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 02:48:48,275 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-03-11 02:48:48,275 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 02:48:48,308 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,308 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,308 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,308 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,308 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,308 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,309 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,309 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,309 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,310 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,310 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,310 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,310 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,311 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,311 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,311 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,311 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,312 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,312 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,312 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,312 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,312 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,312 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,313 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,313 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,313 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,314 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,314 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,314 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,314 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,314 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,314 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,315 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,315 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,315 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,315 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,315 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,315 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,316 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,316 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,316 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,316 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,316 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,317 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,317 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,317 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,317 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,317 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,317 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,317 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,317 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,317 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,317 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,317 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,318 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,318 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,318 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,318 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,318 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,318 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,318 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,318 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,318 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,318 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,318 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,318 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,318 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,319 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,319 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,319 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,319 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,319 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,319 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,319 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,319 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,319 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,320 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,320 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,320 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,320 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,320 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,320 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,320 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,320 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,320 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,320 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,321 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,321 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,321 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,321 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,321 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,321 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,323 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,323 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,323 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,323 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,323 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,323 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,324 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,324 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,326 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,326 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,328 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,328 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,332 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,333 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,333 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,333 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,333 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,333 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,333 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,333 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:48:48,342 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-11 02:48:48,356 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-03-11 02:48:48,381 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 02:48:48,381 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 02:48:48,381 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 02:48:48,381 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 02:48:48,381 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 02:48:48,381 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 02:48:48,381 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 02:48:48,381 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 02:48:48,395 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 152 places, 156 transitions, 334 flow [2021-03-11 02:48:48,452 INFO L129 PetriNetUnfolder]: 11/196 cut-off events. [2021-03-11 02:48:48,452 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-11 02:48:48,455 INFO L84 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 196 events. 11/196 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 358 event pairs, 0 based on Foata normal form. 0/176 useless extension candidates. Maximal degree in co-relation 111. Up to 4 conditions per place. [2021-03-11 02:48:48,455 INFO L82 GeneralOperation]: Start removeDead. Operand has 152 places, 156 transitions, 334 flow [2021-03-11 02:48:48,459 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 144 transitions, 306 flow [2021-03-11 02:48:48,464 INFO L129 PetriNetUnfolder]: 0/37 cut-off events. [2021-03-11 02:48:48,464 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:48:48,464 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:48:48,465 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:48:48,465 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:48:48,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:48:48,468 INFO L82 PathProgramCache]: Analyzing trace with hash -582384552, now seen corresponding path program 1 times [2021-03-11 02:48:48,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:48:48,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141506601] [2021-03-11 02:48:48,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:48:48,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:48:48,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:48,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:48:48,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:48,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 02:48:48,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:48,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:48:48,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:48,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:48:48,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:48,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:48:48,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:48,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:48:48,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:48,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:48:48,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:48:48,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141506601] [2021-03-11 02:48:48,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:48:48,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 02:48:48,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912017317] [2021-03-11 02:48:48,782 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 02:48:48,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:48:48,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 02:48:48,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 02:48:48,792 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 156 [2021-03-11 02:48:48,795 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 144 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 85.33333333333333) internal successors, (512), 6 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:48,795 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:48:48,795 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 156 [2021-03-11 02:48:48,796 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:48:49,017 INFO L129 PetriNetUnfolder]: 362/880 cut-off events. [2021-03-11 02:48:49,017 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-03-11 02:48:49,019 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1565 conditions, 880 events. 362/880 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 4788 event pairs, 213 based on Foata normal form. 20/864 useless extension candidates. Maximal degree in co-relation 1366. Up to 394 conditions per place. [2021-03-11 02:48:49,024 INFO L132 encePairwiseOnDemand]: 133/156 looper letters, 50 selfloop transitions, 18 changer transitions 1/142 dead transitions. [2021-03-11 02:48:49,024 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 142 transitions, 440 flow [2021-03-11 02:48:49,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 02:48:49,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 02:48:49,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 821 transitions. [2021-03-11 02:48:49,034 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5847578347578347 [2021-03-11 02:48:49,035 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 821 transitions. [2021-03-11 02:48:49,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 821 transitions. [2021-03-11 02:48:49,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:48:49,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 821 transitions. [2021-03-11 02:48:49,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 91.22222222222223) internal successors, (821), 9 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:49,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 156.0) internal successors, (1560), 10 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:49,047 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 156.0) internal successors, (1560), 10 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:49,048 INFO L185 Difference]: Start difference. First operand has 142 places, 144 transitions, 306 flow. Second operand 9 states and 821 transitions. [2021-03-11 02:48:49,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 142 transitions, 440 flow [2021-03-11 02:48:49,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 142 transitions, 428 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-11 02:48:49,054 INFO L241 Difference]: Finished difference. Result has 140 places, 135 transitions, 324 flow [2021-03-11 02:48:49,055 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=324, PETRI_PLACES=140, PETRI_TRANSITIONS=135} [2021-03-11 02:48:49,056 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, -2 predicate places. [2021-03-11 02:48:49,056 INFO L480 AbstractCegarLoop]: Abstraction has has 140 places, 135 transitions, 324 flow [2021-03-11 02:48:49,056 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 85.33333333333333) internal successors, (512), 6 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:49,056 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:48:49,056 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:48:49,057 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 02:48:49,057 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:48:49,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:48:49,057 INFO L82 PathProgramCache]: Analyzing trace with hash 2135009715, now seen corresponding path program 1 times [2021-03-11 02:48:49,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:48:49,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867192357] [2021-03-11 02:48:49,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:48:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:48:49,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:49,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:48:49,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:49,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:48:49,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:49,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:48:49,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:49,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:48:49,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:49,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:48:49,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:49,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:48:49,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:48:49,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867192357] [2021-03-11 02:48:49,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:48:49,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 02:48:49,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164584683] [2021-03-11 02:48:49,191 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 02:48:49,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:48:49,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 02:48:49,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 02:48:49,193 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 156 [2021-03-11 02:48:49,193 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 135 transitions, 324 flow. Second operand has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:49,193 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:48:49,193 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 156 [2021-03-11 02:48:49,193 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:48:49,376 INFO L129 PetriNetUnfolder]: 362/867 cut-off events. [2021-03-11 02:48:49,376 INFO L130 PetriNetUnfolder]: For 84/92 co-relation queries the response was YES. [2021-03-11 02:48:49,378 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1697 conditions, 867 events. 362/867 cut-off events. For 84/92 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 4699 event pairs, 117 based on Foata normal form. 3/854 useless extension candidates. Maximal degree in co-relation 764. Up to 261 conditions per place. [2021-03-11 02:48:49,382 INFO L132 encePairwiseOnDemand]: 136/156 looper letters, 58 selfloop transitions, 19 changer transitions 1/150 dead transitions. [2021-03-11 02:48:49,383 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 150 transitions, 516 flow [2021-03-11 02:48:49,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 02:48:49,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 02:48:49,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 909 transitions. [2021-03-11 02:48:49,385 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5826923076923077 [2021-03-11 02:48:49,385 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 909 transitions. [2021-03-11 02:48:49,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 909 transitions. [2021-03-11 02:48:49,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:48:49,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 909 transitions. [2021-03-11 02:48:49,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 90.9) internal successors, (909), 10 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:49,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 156.0) internal successors, (1716), 11 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:49,389 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 156.0) internal successors, (1716), 11 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:49,389 INFO L185 Difference]: Start difference. First operand has 140 places, 135 transitions, 324 flow. Second operand 10 states and 909 transitions. [2021-03-11 02:48:49,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 150 transitions, 516 flow [2021-03-11 02:48:49,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 150 transitions, 486 flow, removed 0 selfloop flow, removed 7 redundant places. [2021-03-11 02:48:49,395 INFO L241 Difference]: Finished difference. Result has 141 places, 134 transitions, 337 flow [2021-03-11 02:48:49,396 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=337, PETRI_PLACES=141, PETRI_TRANSITIONS=134} [2021-03-11 02:48:49,396 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, -1 predicate places. [2021-03-11 02:48:49,396 INFO L480 AbstractCegarLoop]: Abstraction has has 141 places, 134 transitions, 337 flow [2021-03-11 02:48:49,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:49,396 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:48:49,396 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:48:49,397 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 02:48:49,397 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:48:49,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:48:49,398 INFO L82 PathProgramCache]: Analyzing trace with hash 653542742, now seen corresponding path program 1 times [2021-03-11 02:48:49,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:48:49,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898496211] [2021-03-11 02:48:49,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:48:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:48:49,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:49,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:48:49,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:49,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 02:48:49,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:49,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:48:49,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:49,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:48:49,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:49,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:48:49,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:49,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:48:49,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:49,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:48:49,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:48:49,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898496211] [2021-03-11 02:48:49,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:48:49,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 02:48:49,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958218602] [2021-03-11 02:48:49,515 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 02:48:49,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:48:49,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 02:48:49,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 02:48:49,517 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 156 [2021-03-11 02:48:49,518 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 134 transitions, 337 flow. Second operand has 6 states, 6 states have (on average 85.33333333333333) internal successors, (512), 6 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:49,518 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:48:49,518 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 156 [2021-03-11 02:48:49,518 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:48:49,876 INFO L129 PetriNetUnfolder]: 833/1775 cut-off events. [2021-03-11 02:48:49,876 INFO L130 PetriNetUnfolder]: For 222/230 co-relation queries the response was YES. [2021-03-11 02:48:49,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3647 conditions, 1775 events. 833/1775 cut-off events. For 222/230 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 10782 event pairs, 166 based on Foata normal form. 32/1793 useless extension candidates. Maximal degree in co-relation 910. Up to 497 conditions per place. [2021-03-11 02:48:49,885 INFO L132 encePairwiseOnDemand]: 135/156 looper letters, 98 selfloop transitions, 49 changer transitions 0/219 dead transitions. [2021-03-11 02:48:49,885 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 219 transitions, 839 flow [2021-03-11 02:48:49,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 02:48:49,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 02:48:49,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1198 transitions. [2021-03-11 02:48:49,888 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5907297830374754 [2021-03-11 02:48:49,888 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1198 transitions. [2021-03-11 02:48:49,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1198 transitions. [2021-03-11 02:48:49,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:48:49,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1198 transitions. [2021-03-11 02:48:49,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 92.15384615384616) internal successors, (1198), 13 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:49,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 156.0) internal successors, (2184), 14 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:49,893 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 156.0) internal successors, (2184), 14 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:49,893 INFO L185 Difference]: Start difference. First operand has 141 places, 134 transitions, 337 flow. Second operand 13 states and 1198 transitions. [2021-03-11 02:48:49,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 219 transitions, 839 flow [2021-03-11 02:48:49,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 219 transitions, 792 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-03-11 02:48:49,899 INFO L241 Difference]: Finished difference. Result has 153 places, 171 transitions, 618 flow [2021-03-11 02:48:49,899 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=618, PETRI_PLACES=153, PETRI_TRANSITIONS=171} [2021-03-11 02:48:49,899 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 11 predicate places. [2021-03-11 02:48:49,899 INFO L480 AbstractCegarLoop]: Abstraction has has 153 places, 171 transitions, 618 flow [2021-03-11 02:48:49,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 85.33333333333333) internal successors, (512), 6 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:49,900 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:48:49,900 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:48:49,901 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 02:48:49,901 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:48:49,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:48:49,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1989630395, now seen corresponding path program 1 times [2021-03-11 02:48:49,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:48:49,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064697805] [2021-03-11 02:48:49,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:48:49,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:48:49,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:49,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:48:49,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:49,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:48:49,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:49,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:48:49,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:49,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:48:49,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:49,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:48:49,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:49,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:48:49,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:48:49,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064697805] [2021-03-11 02:48:49,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:48:49,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 02:48:49,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050992688] [2021-03-11 02:48:49,980 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 02:48:49,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:48:49,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 02:48:49,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 02:48:49,982 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 156 [2021-03-11 02:48:49,982 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 171 transitions, 618 flow. Second operand has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:49,982 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:48:49,982 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 156 [2021-03-11 02:48:49,982 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:48:50,365 INFO L129 PetriNetUnfolder]: 1082/2247 cut-off events. [2021-03-11 02:48:50,365 INFO L130 PetriNetUnfolder]: For 11410/11448 co-relation queries the response was YES. [2021-03-11 02:48:50,371 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8897 conditions, 2247 events. 1082/2247 cut-off events. For 11410/11448 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 14401 event pairs, 215 based on Foata normal form. 47/2280 useless extension candidates. Maximal degree in co-relation 7612. Up to 730 conditions per place. [2021-03-11 02:48:50,380 INFO L132 encePairwiseOnDemand]: 137/156 looper letters, 72 selfloop transitions, 48 changer transitions 68/260 dead transitions. [2021-03-11 02:48:50,380 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 260 transitions, 1726 flow [2021-03-11 02:48:50,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 02:48:50,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 02:48:50,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1017 transitions. [2021-03-11 02:48:50,384 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5926573426573427 [2021-03-11 02:48:50,384 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1017 transitions. [2021-03-11 02:48:50,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1017 transitions. [2021-03-11 02:48:50,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:48:50,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1017 transitions. [2021-03-11 02:48:50,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 92.45454545454545) internal successors, (1017), 11 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:50,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 156.0) internal successors, (1872), 12 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:50,388 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 156.0) internal successors, (1872), 12 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:50,388 INFO L185 Difference]: Start difference. First operand has 153 places, 171 transitions, 618 flow. Second operand 11 states and 1017 transitions. [2021-03-11 02:48:50,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 260 transitions, 1726 flow [2021-03-11 02:48:50,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 260 transitions, 1704 flow, removed 11 selfloop flow, removed 0 redundant places. [2021-03-11 02:48:50,404 INFO L241 Difference]: Finished difference. Result has 171 places, 178 transitions, 925 flow [2021-03-11 02:48:50,404 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=925, PETRI_PLACES=171, PETRI_TRANSITIONS=178} [2021-03-11 02:48:50,404 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 29 predicate places. [2021-03-11 02:48:50,404 INFO L480 AbstractCegarLoop]: Abstraction has has 171 places, 178 transitions, 925 flow [2021-03-11 02:48:50,404 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:50,404 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:48:50,405 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:48:50,405 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 02:48:50,405 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:48:50,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:48:50,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1440722296, now seen corresponding path program 1 times [2021-03-11 02:48:50,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:48:50,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331140858] [2021-03-11 02:48:50,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:48:50,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:48:50,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:50,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:48:50,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:50,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:48:50,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:50,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:48:50,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:50,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:48:50,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:50,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:48:50,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:48:50,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331140858] [2021-03-11 02:48:50,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:48:50,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 02:48:50,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268531415] [2021-03-11 02:48:50,487 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 02:48:50,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:48:50,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 02:48:50,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 02:48:50,491 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 156 [2021-03-11 02:48:50,491 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 178 transitions, 925 flow. Second operand has 5 states, 5 states have (on average 134.8) internal successors, (674), 5 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:50,491 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:48:50,491 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 156 [2021-03-11 02:48:50,491 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:48:50,532 INFO L129 PetriNetUnfolder]: 6/143 cut-off events. [2021-03-11 02:48:50,532 INFO L130 PetriNetUnfolder]: For 469/489 co-relation queries the response was YES. [2021-03-11 02:48:50,532 INFO L84 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 143 events. 6/143 cut-off events. For 469/489 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 225 event pairs, 4 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 323. Up to 14 conditions per place. [2021-03-11 02:48:50,533 INFO L132 encePairwiseOnDemand]: 151/156 looper letters, 5 selfloop transitions, 4 changer transitions 0/111 dead transitions. [2021-03-11 02:48:50,533 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 111 transitions, 382 flow [2021-03-11 02:48:50,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-11 02:48:50,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-11 02:48:50,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 808 transitions. [2021-03-11 02:48:50,535 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8632478632478633 [2021-03-11 02:48:50,535 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 808 transitions. [2021-03-11 02:48:50,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 808 transitions. [2021-03-11 02:48:50,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:48:50,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 808 transitions. [2021-03-11 02:48:50,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 134.66666666666666) internal successors, (808), 6 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:50,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 156.0) internal successors, (1092), 7 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:50,538 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 156.0) internal successors, (1092), 7 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:50,538 INFO L185 Difference]: Start difference. First operand has 171 places, 178 transitions, 925 flow. Second operand 6 states and 808 transitions. [2021-03-11 02:48:50,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 111 transitions, 382 flow [2021-03-11 02:48:50,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 111 transitions, 266 flow, removed 40 selfloop flow, removed 17 redundant places. [2021-03-11 02:48:50,540 INFO L241 Difference]: Finished difference. Result has 122 places, 111 transitions, 256 flow [2021-03-11 02:48:50,540 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=256, PETRI_PLACES=122, PETRI_TRANSITIONS=111} [2021-03-11 02:48:50,541 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, -20 predicate places. [2021-03-11 02:48:50,541 INFO L480 AbstractCegarLoop]: Abstraction has has 122 places, 111 transitions, 256 flow [2021-03-11 02:48:50,541 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 134.8) internal successors, (674), 5 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:50,541 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:48:50,541 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:48:50,541 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 02:48:50,541 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:48:50,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:48:50,542 INFO L82 PathProgramCache]: Analyzing trace with hash -926439458, now seen corresponding path program 1 times [2021-03-11 02:48:50,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:48:50,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994399666] [2021-03-11 02:48:50,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:48:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:48:50,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:50,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:48:50,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:50,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:48:50,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:50,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 02:48:50,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:50,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 02:48:50,740 INFO L142 QuantifierPusher]: treesize reduction 25, result has 39.0 percent of original size [2021-03-11 02:48:50,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 02:48:50,750 INFO L142 QuantifierPusher]: treesize reduction 9, result has 66.7 percent of original size [2021-03-11 02:48:50,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 02:48:50,765 INFO L142 QuantifierPusher]: treesize reduction 9, result has 66.7 percent of original size [2021-03-11 02:48:50,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 02:48:50,777 INFO L142 QuantifierPusher]: treesize reduction 13, result has 55.2 percent of original size [2021-03-11 02:48:50,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 02:48:50,795 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-11 02:48:50,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:48:50,814 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-11 02:48:50,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 02:48:50,824 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-11 02:48:50,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:48:50,838 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:48:50,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:48:50,869 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:48:50,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:48:50,871 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:48:50,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:48:50,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:50,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:48:50,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:50,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:48:50,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:50,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:48:50,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:50,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:48:50,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:48:50,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994399666] [2021-03-11 02:48:50,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:48:50,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-11 02:48:50,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326444238] [2021-03-11 02:48:50,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 02:48:50,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:48:50,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 02:48:50,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-03-11 02:48:50,905 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 156 [2021-03-11 02:48:50,906 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 111 transitions, 256 flow. Second operand has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:50,906 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:48:50,906 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 156 [2021-03-11 02:48:50,906 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:48:51,511 INFO L129 PetriNetUnfolder]: 338/871 cut-off events. [2021-03-11 02:48:51,511 INFO L130 PetriNetUnfolder]: For 115/115 co-relation queries the response was YES. [2021-03-11 02:48:51,512 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1755 conditions, 871 events. 338/871 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4894 event pairs, 59 based on Foata normal form. 0/858 useless extension candidates. Maximal degree in co-relation 1746. Up to 182 conditions per place. [2021-03-11 02:48:51,515 INFO L132 encePairwiseOnDemand]: 131/156 looper letters, 95 selfloop transitions, 28 changer transitions 0/169 dead transitions. [2021-03-11 02:48:51,515 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 169 transitions, 642 flow [2021-03-11 02:48:51,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-11 02:48:51,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-11 02:48:51,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1177 transitions. [2021-03-11 02:48:51,518 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44381598793363497 [2021-03-11 02:48:51,518 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1177 transitions. [2021-03-11 02:48:51,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1177 transitions. [2021-03-11 02:48:51,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:48:51,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1177 transitions. [2021-03-11 02:48:51,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 69.23529411764706) internal successors, (1177), 17 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:51,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 156.0) internal successors, (2808), 18 states have internal predecessors, (2808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:51,524 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 156.0) internal successors, (2808), 18 states have internal predecessors, (2808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:51,524 INFO L185 Difference]: Start difference. First operand has 122 places, 111 transitions, 256 flow. Second operand 17 states and 1177 transitions. [2021-03-11 02:48:51,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 169 transitions, 642 flow [2021-03-11 02:48:51,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 169 transitions, 635 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-11 02:48:51,527 INFO L241 Difference]: Finished difference. Result has 142 places, 126 transitions, 402 flow [2021-03-11 02:48:51,528 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=402, PETRI_PLACES=142, PETRI_TRANSITIONS=126} [2021-03-11 02:48:51,528 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 0 predicate places. [2021-03-11 02:48:51,528 INFO L480 AbstractCegarLoop]: Abstraction has has 142 places, 126 transitions, 402 flow [2021-03-11 02:48:51,528 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:51,528 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:48:51,528 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:48:51,528 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 02:48:51,529 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:48:51,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:48:51,529 INFO L82 PathProgramCache]: Analyzing trace with hash -2055826232, now seen corresponding path program 2 times [2021-03-11 02:48:51,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:48:51,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898948815] [2021-03-11 02:48:51,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:48:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:48:51,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:51,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:48:51,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:51,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:48:51,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:51,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:48:51,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:51,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:48:51,713 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:48:51,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:48:51,722 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:48:51,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:48:51,734 INFO L142 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-03-11 02:48:51,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 02:48:51,744 INFO L142 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-03-11 02:48:51,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 02:48:51,754 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-03-11 02:48:51,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 02:48:51,767 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-11 02:48:51,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:48:51,781 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-11 02:48:51,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 02:48:51,790 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:48:51,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:48:51,802 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:48:51,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:48:51,803 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:48:51,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:48:51,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:51,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:48:51,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:51,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:48:51,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:51,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:48:51,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:51,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:48:51,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:48:51,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898948815] [2021-03-11 02:48:51,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:48:51,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-11 02:48:51,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633080051] [2021-03-11 02:48:51,845 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 02:48:51,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:48:51,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 02:48:51,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-03-11 02:48:51,846 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 156 [2021-03-11 02:48:51,847 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 126 transitions, 402 flow. Second operand has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:51,847 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:48:51,847 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 156 [2021-03-11 02:48:51,847 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:48:52,535 INFO L129 PetriNetUnfolder]: 419/1150 cut-off events. [2021-03-11 02:48:52,535 INFO L130 PetriNetUnfolder]: For 801/808 co-relation queries the response was YES. [2021-03-11 02:48:52,538 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2720 conditions, 1150 events. 419/1150 cut-off events. For 801/808 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 6865 event pairs, 168 based on Foata normal form. 3/1133 useless extension candidates. Maximal degree in co-relation 2704. Up to 331 conditions per place. [2021-03-11 02:48:52,541 INFO L132 encePairwiseOnDemand]: 134/156 looper letters, 106 selfloop transitions, 31 changer transitions 0/183 dead transitions. [2021-03-11 02:48:52,541 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 183 transitions, 909 flow [2021-03-11 02:48:52,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-11 02:48:52,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-11 02:48:52,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1234 transitions. [2021-03-11 02:48:52,544 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.43945868945868943 [2021-03-11 02:48:52,544 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1234 transitions. [2021-03-11 02:48:52,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1234 transitions. [2021-03-11 02:48:52,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:48:52,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1234 transitions. [2021-03-11 02:48:52,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 68.55555555555556) internal successors, (1234), 18 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:52,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 156.0) internal successors, (2964), 19 states have internal predecessors, (2964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:52,549 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 156.0) internal successors, (2964), 19 states have internal predecessors, (2964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:52,550 INFO L185 Difference]: Start difference. First operand has 142 places, 126 transitions, 402 flow. Second operand 18 states and 1234 transitions. [2021-03-11 02:48:52,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 183 transitions, 909 flow [2021-03-11 02:48:52,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 183 transitions, 889 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-03-11 02:48:52,554 INFO L241 Difference]: Finished difference. Result has 163 places, 141 transitions, 583 flow [2021-03-11 02:48:52,555 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=583, PETRI_PLACES=163, PETRI_TRANSITIONS=141} [2021-03-11 02:48:52,555 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 21 predicate places. [2021-03-11 02:48:52,555 INFO L480 AbstractCegarLoop]: Abstraction has has 163 places, 141 transitions, 583 flow [2021-03-11 02:48:52,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:52,555 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:48:52,555 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:48:52,556 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 02:48:52,556 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:48:52,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:48:52,557 INFO L82 PathProgramCache]: Analyzing trace with hash -850805598, now seen corresponding path program 3 times [2021-03-11 02:48:52,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:48:52,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142131121] [2021-03-11 02:48:52,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:48:52,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:48:52,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:52,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:48:52,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:52,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:48:52,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:52,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:48:52,706 INFO L142 QuantifierPusher]: treesize reduction 11, result has 65.6 percent of original size [2021-03-11 02:48:52,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 02:48:52,720 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 02:48:52,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:48:52,729 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:48:52,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:48:52,743 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-11 02:48:52,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:48:52,760 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-11 02:48:52,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:48:52,776 INFO L142 QuantifierPusher]: treesize reduction 38, result has 38.7 percent of original size [2021-03-11 02:48:52,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 02:48:52,792 INFO L142 QuantifierPusher]: treesize reduction 38, result has 46.5 percent of original size [2021-03-11 02:48:52,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 02:48:52,811 INFO L142 QuantifierPusher]: treesize reduction 38, result has 51.3 percent of original size [2021-03-11 02:48:52,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 02:48:52,824 INFO L142 QuantifierPusher]: treesize reduction 12, result has 69.2 percent of original size [2021-03-11 02:48:52,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:48:52,843 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.7 percent of original size [2021-03-11 02:48:52,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 02:48:52,863 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-11 02:48:52,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 02:48:52,881 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 02:48:52,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:48:52,893 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 02:48:52,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:48:52,894 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:48:52,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:48:52,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:52,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:48:52,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:52,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:48:52,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:52,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:48:52,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:52,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:48:52,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:48:52,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142131121] [2021-03-11 02:48:52,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:48:52,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-11 02:48:52,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167320311] [2021-03-11 02:48:52,937 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-11 02:48:52,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:48:52,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-11 02:48:52,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2021-03-11 02:48:52,939 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:48:52,940 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 141 transitions, 583 flow. Second operand has 19 states, 19 states have (on average 62.10526315789474) internal successors, (1180), 19 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:52,940 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:48:52,940 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:48:52,940 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:48:55,042 INFO L129 PetriNetUnfolder]: 872/2251 cut-off events. [2021-03-11 02:48:55,042 INFO L130 PetriNetUnfolder]: For 2615/2645 co-relation queries the response was YES. [2021-03-11 02:48:55,048 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5806 conditions, 2251 events. 872/2251 cut-off events. For 2615/2645 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 16037 event pairs, 87 based on Foata normal form. 12/2226 useless extension candidates. Maximal degree in co-relation 5779. Up to 440 conditions per place. [2021-03-11 02:48:55,054 INFO L132 encePairwiseOnDemand]: 129/156 looper letters, 168 selfloop transitions, 69 changer transitions 0/280 dead transitions. [2021-03-11 02:48:55,054 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 280 transitions, 1639 flow [2021-03-11 02:48:55,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-11 02:48:55,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2021-03-11 02:48:55,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 1858 transitions. [2021-03-11 02:48:55,059 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.42536630036630035 [2021-03-11 02:48:55,059 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 1858 transitions. [2021-03-11 02:48:55,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 1858 transitions. [2021-03-11 02:48:55,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:48:55,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 1858 transitions. [2021-03-11 02:48:55,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 66.35714285714286) internal successors, (1858), 28 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:55,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 156.0) internal successors, (4524), 29 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:55,067 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 156.0) internal successors, (4524), 29 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:55,067 INFO L185 Difference]: Start difference. First operand has 163 places, 141 transitions, 583 flow. Second operand 28 states and 1858 transitions. [2021-03-11 02:48:55,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 280 transitions, 1639 flow [2021-03-11 02:48:55,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 280 transitions, 1604 flow, removed 11 selfloop flow, removed 5 redundant places. [2021-03-11 02:48:55,075 INFO L241 Difference]: Finished difference. Result has 197 places, 181 transitions, 1075 flow [2021-03-11 02:48:55,076 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=1075, PETRI_PLACES=197, PETRI_TRANSITIONS=181} [2021-03-11 02:48:55,076 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 55 predicate places. [2021-03-11 02:48:55,076 INFO L480 AbstractCegarLoop]: Abstraction has has 197 places, 181 transitions, 1075 flow [2021-03-11 02:48:55,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 62.10526315789474) internal successors, (1180), 19 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:55,076 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:48:55,076 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:48:55,077 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 02:48:55,077 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:48:55,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:48:55,078 INFO L82 PathProgramCache]: Analyzing trace with hash 169218088, now seen corresponding path program 4 times [2021-03-11 02:48:55,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:48:55,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144886520] [2021-03-11 02:48:55,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:48:55,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:48:55,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:55,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:48:55,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:55,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:48:55,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:55,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:48:55,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:55,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:48:55,226 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:48:55,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:48:55,233 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:48:55,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:48:55,243 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:48:55,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:48:55,253 INFO L142 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-03-11 02:48:55,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 02:48:55,262 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-03-11 02:48:55,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 02:48:55,272 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-11 02:48:55,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:48:55,284 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-11 02:48:55,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 02:48:55,291 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:48:55,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:48:55,304 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:48:55,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:48:55,306 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:48:55,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:48:55,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:55,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:48:55,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:55,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:48:55,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:55,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:48:55,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:55,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:48:55,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:48:55,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144886520] [2021-03-11 02:48:55,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:48:55,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-11 02:48:55,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956499370] [2021-03-11 02:48:55,343 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 02:48:55,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:48:55,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 02:48:55,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-03-11 02:48:55,345 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 156 [2021-03-11 02:48:55,346 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 181 transitions, 1075 flow. Second operand has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:55,347 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:48:55,347 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 156 [2021-03-11 02:48:55,347 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:48:56,217 INFO L129 PetriNetUnfolder]: 792/2390 cut-off events. [2021-03-11 02:48:56,217 INFO L130 PetriNetUnfolder]: For 5168/5216 co-relation queries the response was YES. [2021-03-11 02:48:56,225 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6843 conditions, 2390 events. 792/2390 cut-off events. For 5168/5216 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 18990 event pairs, 237 based on Foata normal form. 16/2362 useless extension candidates. Maximal degree in co-relation 6805. Up to 668 conditions per place. [2021-03-11 02:48:56,232 INFO L132 encePairwiseOnDemand]: 133/156 looper letters, 175 selfloop transitions, 53 changer transitions 0/277 dead transitions. [2021-03-11 02:48:56,232 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 277 transitions, 2189 flow [2021-03-11 02:48:56,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-11 02:48:56,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-11 02:48:56,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1315 transitions. [2021-03-11 02:48:56,236 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44365721997300944 [2021-03-11 02:48:56,236 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1315 transitions. [2021-03-11 02:48:56,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1315 transitions. [2021-03-11 02:48:56,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:48:56,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1315 transitions. [2021-03-11 02:48:56,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 69.21052631578948) internal successors, (1315), 19 states have internal predecessors, (1315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:56,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:56,242 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:56,242 INFO L185 Difference]: Start difference. First operand has 197 places, 181 transitions, 1075 flow. Second operand 19 states and 1315 transitions. [2021-03-11 02:48:56,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 277 transitions, 2189 flow [2021-03-11 02:48:56,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 277 transitions, 2142 flow, removed 15 selfloop flow, removed 5 redundant places. [2021-03-11 02:48:56,262 INFO L241 Difference]: Finished difference. Result has 219 places, 204 transitions, 1474 flow [2021-03-11 02:48:56,262 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=1041, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1474, PETRI_PLACES=219, PETRI_TRANSITIONS=204} [2021-03-11 02:48:56,262 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 77 predicate places. [2021-03-11 02:48:56,262 INFO L480 AbstractCegarLoop]: Abstraction has has 219 places, 204 transitions, 1474 flow [2021-03-11 02:48:56,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:56,263 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:48:56,263 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:48:56,263 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-11 02:48:56,263 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:48:56,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:48:56,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1501163744, now seen corresponding path program 5 times [2021-03-11 02:48:56,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:48:56,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700059813] [2021-03-11 02:48:56,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:48:56,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:48:56,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:56,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:48:56,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:56,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:48:56,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:56,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:48:56,384 INFO L142 QuantifierPusher]: treesize reduction 11, result has 65.6 percent of original size [2021-03-11 02:48:56,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 02:48:56,398 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 02:48:56,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:48:56,407 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:48:56,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:48:56,419 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:48:56,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:48:56,432 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:48:56,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:48:56,448 INFO L142 QuantifierPusher]: treesize reduction 38, result has 38.7 percent of original size [2021-03-11 02:48:56,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 02:48:56,464 INFO L142 QuantifierPusher]: treesize reduction 38, result has 46.5 percent of original size [2021-03-11 02:48:56,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 02:48:56,484 INFO L142 QuantifierPusher]: treesize reduction 38, result has 51.3 percent of original size [2021-03-11 02:48:56,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 02:48:56,499 INFO L142 QuantifierPusher]: treesize reduction 12, result has 69.2 percent of original size [2021-03-11 02:48:56,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:48:56,517 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.7 percent of original size [2021-03-11 02:48:56,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 02:48:56,537 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-11 02:48:56,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 02:48:56,558 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 02:48:56,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:48:56,568 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 02:48:56,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:48:56,570 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:48:56,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:48:56,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:56,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:48:56,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:56,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:48:56,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:56,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:48:56,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:56,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:48:56,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:48:56,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700059813] [2021-03-11 02:48:56,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:48:56,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-11 02:48:56,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846354608] [2021-03-11 02:48:56,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-11 02:48:56,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:48:56,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-11 02:48:56,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2021-03-11 02:48:56,607 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:48:56,608 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 204 transitions, 1474 flow. Second operand has 19 states, 19 states have (on average 62.10526315789474) internal successors, (1180), 19 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:56,608 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:48:56,608 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:48:56,608 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:48:58,269 INFO L129 PetriNetUnfolder]: 1706/4677 cut-off events. [2021-03-11 02:48:58,269 INFO L130 PetriNetUnfolder]: For 14357/14462 co-relation queries the response was YES. [2021-03-11 02:48:58,286 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14568 conditions, 4677 events. 1706/4677 cut-off events. For 14357/14462 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 41889 event pairs, 327 based on Foata normal form. 44/4629 useless extension candidates. Maximal degree in co-relation 14520. Up to 1292 conditions per place. [2021-03-11 02:48:58,299 INFO L132 encePairwiseOnDemand]: 130/156 looper letters, 212 selfloop transitions, 75 changer transitions 0/330 dead transitions. [2021-03-11 02:48:58,299 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 330 transitions, 3047 flow [2021-03-11 02:48:58,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-11 02:48:58,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-11 02:48:58,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1276 transitions. [2021-03-11 02:48:58,301 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.43049932523616735 [2021-03-11 02:48:58,301 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1276 transitions. [2021-03-11 02:48:58,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1276 transitions. [2021-03-11 02:48:58,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:48:58,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1276 transitions. [2021-03-11 02:48:58,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 67.15789473684211) internal successors, (1276), 19 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:58,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:58,305 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:58,305 INFO L185 Difference]: Start difference. First operand has 219 places, 204 transitions, 1474 flow. Second operand 19 states and 1276 transitions. [2021-03-11 02:48:58,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 330 transitions, 3047 flow [2021-03-11 02:48:58,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 330 transitions, 2950 flow, removed 41 selfloop flow, removed 5 redundant places. [2021-03-11 02:48:58,357 INFO L241 Difference]: Finished difference. Result has 242 places, 241 transitions, 2099 flow [2021-03-11 02:48:58,358 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=1405, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=2099, PETRI_PLACES=242, PETRI_TRANSITIONS=241} [2021-03-11 02:48:58,358 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 100 predicate places. [2021-03-11 02:48:58,358 INFO L480 AbstractCegarLoop]: Abstraction has has 242 places, 241 transitions, 2099 flow [2021-03-11 02:48:58,359 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 62.10526315789474) internal successors, (1180), 19 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:58,359 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:48:58,359 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:48:58,359 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-11 02:48:58,359 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:48:58,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:48:58,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1314381074, now seen corresponding path program 6 times [2021-03-11 02:48:58,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:48:58,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035158768] [2021-03-11 02:48:58,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:48:58,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:48:58,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:58,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:48:58,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:58,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:48:58,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:58,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:48:58,479 INFO L142 QuantifierPusher]: treesize reduction 22, result has 47.6 percent of original size [2021-03-11 02:48:58,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 02:48:58,493 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-11 02:48:58,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:48:58,503 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-11 02:48:58,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:48:58,512 INFO L142 QuantifierPusher]: treesize reduction 15, result has 50.0 percent of original size [2021-03-11 02:48:58,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:48:58,526 INFO L142 QuantifierPusher]: treesize reduction 15, result has 48.3 percent of original size [2021-03-11 02:48:58,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 02:48:58,537 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:48:58,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:48:58,551 INFO L142 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-03-11 02:48:58,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 02:48:58,558 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-11 02:48:58,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:48:58,568 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-11 02:48:58,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:48:58,569 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:48:58,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:48:58,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:58,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:48:58,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:58,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:48:58,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:58,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:48:58,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:58,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:48:58,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:48:58,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035158768] [2021-03-11 02:48:58,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:48:58,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-11 02:48:58,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272556390] [2021-03-11 02:48:58,618 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 02:48:58,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:48:58,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 02:48:58,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-03-11 02:48:58,619 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 156 [2021-03-11 02:48:58,620 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 241 transitions, 2099 flow. Second operand has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:58,620 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:48:58,620 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 156 [2021-03-11 02:48:58,620 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:48:59,711 INFO L129 PetriNetUnfolder]: 1405/4337 cut-off events. [2021-03-11 02:48:59,711 INFO L130 PetriNetUnfolder]: For 15481/15630 co-relation queries the response was YES. [2021-03-11 02:48:59,728 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13771 conditions, 4337 events. 1405/4337 cut-off events. For 15481/15630 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 40683 event pairs, 133 based on Foata normal form. 80/4377 useless extension candidates. Maximal degree in co-relation 13713. Up to 946 conditions per place. [2021-03-11 02:48:59,737 INFO L132 encePairwiseOnDemand]: 131/156 looper letters, 165 selfloop transitions, 121 changer transitions 0/336 dead transitions. [2021-03-11 02:48:59,737 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 336 transitions, 3433 flow [2021-03-11 02:48:59,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-11 02:48:59,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-11 02:48:59,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1326 transitions. [2021-03-11 02:48:59,739 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4473684210526316 [2021-03-11 02:48:59,739 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1326 transitions. [2021-03-11 02:48:59,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1326 transitions. [2021-03-11 02:48:59,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:48:59,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1326 transitions. [2021-03-11 02:48:59,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 69.78947368421052) internal successors, (1326), 19 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:59,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:59,743 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:59,743 INFO L185 Difference]: Start difference. First operand has 242 places, 241 transitions, 2099 flow. Second operand 19 states and 1326 transitions. [2021-03-11 02:48:59,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 336 transitions, 3433 flow [2021-03-11 02:48:59,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 336 transitions, 3368 flow, removed 25 selfloop flow, removed 5 redundant places. [2021-03-11 02:48:59,803 INFO L241 Difference]: Finished difference. Result has 262 places, 272 transitions, 2901 flow [2021-03-11 02:48:59,804 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=2038, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=2901, PETRI_PLACES=262, PETRI_TRANSITIONS=272} [2021-03-11 02:48:59,804 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 120 predicate places. [2021-03-11 02:48:59,804 INFO L480 AbstractCegarLoop]: Abstraction has has 262 places, 272 transitions, 2901 flow [2021-03-11 02:48:59,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:48:59,805 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:48:59,805 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:48:59,805 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-11 02:48:59,805 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:48:59,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:48:59,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1792945168, now seen corresponding path program 7 times [2021-03-11 02:48:59,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:48:59,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866360578] [2021-03-11 02:48:59,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:48:59,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:48:59,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:59,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:48:59,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:59,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:48:59,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:48:59,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:48:59,902 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:48:59,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:48:59,909 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:48:59,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:48:59,920 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:48:59,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:48:59,933 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:48:59,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:48:59,947 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-11 02:48:59,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:48:59,962 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-11 02:48:59,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 02:48:59,979 INFO L142 QuantifierPusher]: treesize reduction 16, result has 67.3 percent of original size [2021-03-11 02:48:59,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 02:49:00,004 INFO L142 QuantifierPusher]: treesize reduction 16, result has 71.4 percent of original size [2021-03-11 02:49:00,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 02:49:00,023 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.7 percent of original size [2021-03-11 02:49:00,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 02:49:00,039 INFO L142 QuantifierPusher]: treesize reduction 9, result has 66.7 percent of original size [2021-03-11 02:49:00,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 02:49:00,054 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:49:00,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:00,063 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:49:00,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:00,065 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:49:00,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:49:00,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:00,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:49:00,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:00,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:49:00,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:00,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:49:00,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:00,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:00,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:49:00,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866360578] [2021-03-11 02:49:00,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:49:00,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:49:00,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911583648] [2021-03-11 02:49:00,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:49:00,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:49:00,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:49:00,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:49:00,102 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:49:00,103 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 272 transitions, 2901 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:00,103 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:49:00,103 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:49:00,103 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:49:02,295 INFO L129 PetriNetUnfolder]: 1717/4942 cut-off events. [2021-03-11 02:49:02,295 INFO L130 PetriNetUnfolder]: For 25731/25928 co-relation queries the response was YES. [2021-03-11 02:49:02,315 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17390 conditions, 4942 events. 1717/4942 cut-off events. For 25731/25928 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 45264 event pairs, 312 based on Foata normal form. 90/4947 useless extension candidates. Maximal degree in co-relation 17324. Up to 1051 conditions per place. [2021-03-11 02:49:02,325 INFO L132 encePairwiseOnDemand]: 129/156 looper letters, 256 selfloop transitions, 123 changer transitions 0/422 dead transitions. [2021-03-11 02:49:02,325 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 422 transitions, 5034 flow [2021-03-11 02:49:02,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-11 02:49:02,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2021-03-11 02:49:02,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1730 transitions. [2021-03-11 02:49:02,328 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4265285996055227 [2021-03-11 02:49:02,328 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 1730 transitions. [2021-03-11 02:49:02,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 1730 transitions. [2021-03-11 02:49:02,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:49:02,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 1730 transitions. [2021-03-11 02:49:02,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 66.53846153846153) internal successors, (1730), 26 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:02,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 156.0) internal successors, (4212), 27 states have internal predecessors, (4212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:02,333 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 156.0) internal successors, (4212), 27 states have internal predecessors, (4212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:02,333 INFO L185 Difference]: Start difference. First operand has 262 places, 272 transitions, 2901 flow. Second operand 26 states and 1730 transitions. [2021-03-11 02:49:02,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 422 transitions, 5034 flow [2021-03-11 02:49:02,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 422 transitions, 4898 flow, removed 41 selfloop flow, removed 7 redundant places. [2021-03-11 02:49:02,445 INFO L241 Difference]: Finished difference. Result has 291 places, 321 transitions, 4049 flow [2021-03-11 02:49:02,446 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=2803, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=4049, PETRI_PLACES=291, PETRI_TRANSITIONS=321} [2021-03-11 02:49:02,446 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 149 predicate places. [2021-03-11 02:49:02,446 INFO L480 AbstractCegarLoop]: Abstraction has has 291 places, 321 transitions, 4049 flow [2021-03-11 02:49:02,446 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:02,447 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:49:02,447 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:49:02,447 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-11 02:49:02,447 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:49:02,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:49:02,447 INFO L82 PathProgramCache]: Analyzing trace with hash 2043826806, now seen corresponding path program 8 times [2021-03-11 02:49:02,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:49:02,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107213471] [2021-03-11 02:49:02,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:49:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:49:02,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:02,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:02,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:02,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:49:02,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:02,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:49:02,551 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:49:02,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:49:02,558 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:49:02,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:02,567 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:49:02,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:49:02,579 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-11 02:49:02,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:49:02,592 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-11 02:49:02,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:49:02,607 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-11 02:49:02,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 02:49:02,622 INFO L142 QuantifierPusher]: treesize reduction 16, result has 67.3 percent of original size [2021-03-11 02:49:02,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 02:49:02,641 INFO L142 QuantifierPusher]: treesize reduction 16, result has 71.4 percent of original size [2021-03-11 02:49:02,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 02:49:02,653 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.7 percent of original size [2021-03-11 02:49:02,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 02:49:02,669 INFO L142 QuantifierPusher]: treesize reduction 9, result has 66.7 percent of original size [2021-03-11 02:49:02,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 02:49:02,684 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:49:02,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:02,695 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:49:02,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:02,696 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:49:02,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:49:02,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:02,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:49:02,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:02,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:49:02,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:02,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:49:02,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:02,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:02,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:49:02,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107213471] [2021-03-11 02:49:02,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:49:02,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:49:02,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005812363] [2021-03-11 02:49:02,739 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:49:02,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:49:02,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:49:02,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:49:02,742 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:49:02,742 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 321 transitions, 4049 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:02,743 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:49:02,743 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:49:02,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:49:04,570 INFO L129 PetriNetUnfolder]: 2044/5899 cut-off events. [2021-03-11 02:49:04,570 INFO L130 PetriNetUnfolder]: For 37482/37699 co-relation queries the response was YES. [2021-03-11 02:49:04,600 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21894 conditions, 5899 events. 2044/5899 cut-off events. For 37482/37699 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 56435 event pairs, 632 based on Foata normal form. 61/5832 useless extension candidates. Maximal degree in co-relation 21818. Up to 2752 conditions per place. [2021-03-11 02:49:04,614 INFO L132 encePairwiseOnDemand]: 130/156 looper letters, 297 selfloop transitions, 112 changer transitions 0/452 dead transitions. [2021-03-11 02:49:04,615 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 452 transitions, 6406 flow [2021-03-11 02:49:04,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-11 02:49:04,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-11 02:49:04,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1270 transitions. [2021-03-11 02:49:04,618 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4284750337381916 [2021-03-11 02:49:04,618 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1270 transitions. [2021-03-11 02:49:04,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1270 transitions. [2021-03-11 02:49:04,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:49:04,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1270 transitions. [2021-03-11 02:49:04,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 66.84210526315789) internal successors, (1270), 19 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:04,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:04,622 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:04,622 INFO L185 Difference]: Start difference. First operand has 291 places, 321 transitions, 4049 flow. Second operand 19 states and 1270 transitions. [2021-03-11 02:49:04,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 452 transitions, 6406 flow [2021-03-11 02:49:04,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 452 transitions, 6232 flow, removed 68 selfloop flow, removed 6 redundant places. [2021-03-11 02:49:04,789 INFO L241 Difference]: Finished difference. Result has 313 places, 360 transitions, 4998 flow [2021-03-11 02:49:04,790 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=3912, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4998, PETRI_PLACES=313, PETRI_TRANSITIONS=360} [2021-03-11 02:49:04,790 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 171 predicate places. [2021-03-11 02:49:04,790 INFO L480 AbstractCegarLoop]: Abstraction has has 313 places, 360 transitions, 4998 flow [2021-03-11 02:49:04,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:04,791 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:49:04,791 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:49:04,791 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-11 02:49:04,791 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:49:04,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:49:04,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1937456280, now seen corresponding path program 9 times [2021-03-11 02:49:04,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:49:04,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424862006] [2021-03-11 02:49:04,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:49:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:49:04,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:04,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:04,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:04,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:49:04,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:04,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:49:04,891 INFO L142 QuantifierPusher]: treesize reduction 20, result has 52.4 percent of original size [2021-03-11 02:49:04,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:49:04,904 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-11 02:49:04,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:04,913 INFO L142 QuantifierPusher]: treesize reduction 11, result has 59.3 percent of original size [2021-03-11 02:49:04,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 02:49:04,921 INFO L142 QuantifierPusher]: treesize reduction 11, result has 59.3 percent of original size [2021-03-11 02:49:04,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 02:49:04,933 INFO L142 QuantifierPusher]: treesize reduction 15, result has 48.3 percent of original size [2021-03-11 02:49:04,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 02:49:04,948 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:49:04,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:49:05,038 INFO L142 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-03-11 02:49:05,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 02:49:05,047 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-11 02:49:05,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:05,057 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:49:05,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:49:05,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:05,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:49:05,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:05,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:49:05,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:05,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:49:05,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:05,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:05,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:49:05,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424862006] [2021-03-11 02:49:05,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:49:05,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-11 02:49:05,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281903325] [2021-03-11 02:49:05,094 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 02:49:05,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:49:05,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 02:49:05,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-03-11 02:49:05,095 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 156 [2021-03-11 02:49:05,096 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 360 transitions, 4998 flow. Second operand has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:05,096 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:49:05,096 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 156 [2021-03-11 02:49:05,096 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:49:06,860 INFO L129 PetriNetUnfolder]: 2264/7326 cut-off events. [2021-03-11 02:49:06,860 INFO L130 PetriNetUnfolder]: For 53288/53679 co-relation queries the response was YES. [2021-03-11 02:49:06,897 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26622 conditions, 7326 events. 2264/7326 cut-off events. For 53288/53679 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 77008 event pairs, 862 based on Foata normal form. 162/7341 useless extension candidates. Maximal degree in co-relation 26536. Up to 2283 conditions per place. [2021-03-11 02:49:06,913 INFO L132 encePairwiseOnDemand]: 134/156 looper letters, 342 selfloop transitions, 123 changer transitions 0/522 dead transitions. [2021-03-11 02:49:06,913 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 522 transitions, 8257 flow [2021-03-11 02:49:06,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-11 02:49:06,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-11 02:49:06,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1234 transitions. [2021-03-11 02:49:06,915 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.43945868945868943 [2021-03-11 02:49:06,915 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1234 transitions. [2021-03-11 02:49:06,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1234 transitions. [2021-03-11 02:49:06,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:49:06,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1234 transitions. [2021-03-11 02:49:06,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 68.55555555555556) internal successors, (1234), 18 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:06,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 156.0) internal successors, (2964), 19 states have internal predecessors, (2964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:06,919 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 156.0) internal successors, (2964), 19 states have internal predecessors, (2964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:06,919 INFO L185 Difference]: Start difference. First operand has 313 places, 360 transitions, 4998 flow. Second operand 18 states and 1234 transitions. [2021-03-11 02:49:06,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 522 transitions, 8257 flow [2021-03-11 02:49:07,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 522 transitions, 8049 flow, removed 78 selfloop flow, removed 6 redundant places. [2021-03-11 02:49:07,130 INFO L241 Difference]: Finished difference. Result has 334 places, 406 transitions, 5978 flow [2021-03-11 02:49:07,131 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=4835, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5978, PETRI_PLACES=334, PETRI_TRANSITIONS=406} [2021-03-11 02:49:07,131 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 192 predicate places. [2021-03-11 02:49:07,131 INFO L480 AbstractCegarLoop]: Abstraction has has 334 places, 406 transitions, 5978 flow [2021-03-11 02:49:07,131 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:07,131 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:49:07,131 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:49:07,132 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-11 02:49:07,132 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:49:07,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:49:07,132 INFO L82 PathProgramCache]: Analyzing trace with hash -992639398, now seen corresponding path program 10 times [2021-03-11 02:49:07,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:49:07,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877116418] [2021-03-11 02:49:07,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:49:07,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:49:07,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:07,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:07,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:07,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:49:07,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:07,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:49:07,226 INFO L142 QuantifierPusher]: treesize reduction 22, result has 47.6 percent of original size [2021-03-11 02:49:07,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 02:49:07,239 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-11 02:49:07,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:07,251 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-11 02:49:07,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:07,261 INFO L142 QuantifierPusher]: treesize reduction 15, result has 50.0 percent of original size [2021-03-11 02:49:07,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:49:07,271 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-11 02:49:07,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 02:49:07,284 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size [2021-03-11 02:49:07,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 02:49:07,292 INFO L142 QuantifierPusher]: treesize reduction 11, result has 62.1 percent of original size [2021-03-11 02:49:07,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 02:49:07,303 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-11 02:49:07,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:07,312 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-11 02:49:07,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:07,312 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:49:07,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:49:07,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:07,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:49:07,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:07,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:49:07,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:07,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:49:07,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:07,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:07,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:49:07,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877116418] [2021-03-11 02:49:07,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:49:07,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-11 02:49:07,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540276727] [2021-03-11 02:49:07,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 02:49:07,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:49:07,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 02:49:07,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-03-11 02:49:07,345 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 156 [2021-03-11 02:49:07,345 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 406 transitions, 5978 flow. Second operand has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:07,345 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:49:07,345 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 156 [2021-03-11 02:49:07,345 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:49:09,577 INFO L129 PetriNetUnfolder]: 2863/9279 cut-off events. [2021-03-11 02:49:09,578 INFO L130 PetriNetUnfolder]: For 72242/72866 co-relation queries the response was YES. [2021-03-11 02:49:09,632 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35218 conditions, 9279 events. 2863/9279 cut-off events. For 72242/72866 co-relation queries the response was YES. Maximal size of possible extension queue 581. Compared 104057 event pairs, 586 based on Foata normal form. 288/9349 useless extension candidates. Maximal degree in co-relation 35121. Up to 2633 conditions per place. [2021-03-11 02:49:09,650 INFO L132 encePairwiseOnDemand]: 131/156 looper letters, 369 selfloop transitions, 184 changer transitions 0/610 dead transitions. [2021-03-11 02:49:09,650 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 610 transitions, 10349 flow [2021-03-11 02:49:09,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-11 02:49:09,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-11 02:49:09,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1174 transitions. [2021-03-11 02:49:09,652 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44268476621417796 [2021-03-11 02:49:09,652 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1174 transitions. [2021-03-11 02:49:09,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1174 transitions. [2021-03-11 02:49:09,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:49:09,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1174 transitions. [2021-03-11 02:49:09,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 69.05882352941177) internal successors, (1174), 17 states have internal predecessors, (1174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:09,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 156.0) internal successors, (2808), 18 states have internal predecessors, (2808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:09,656 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 156.0) internal successors, (2808), 18 states have internal predecessors, (2808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:09,656 INFO L185 Difference]: Start difference. First operand has 334 places, 406 transitions, 5978 flow. Second operand 17 states and 1174 transitions. [2021-03-11 02:49:09,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 610 transitions, 10349 flow [2021-03-11 02:49:09,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 610 transitions, 10242 flow, removed 47 selfloop flow, removed 5 redundant places. [2021-03-11 02:49:09,963 INFO L241 Difference]: Finished difference. Result has 353 places, 487 transitions, 8037 flow [2021-03-11 02:49:09,963 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=5871, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=8037, PETRI_PLACES=353, PETRI_TRANSITIONS=487} [2021-03-11 02:49:09,963 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 211 predicate places. [2021-03-11 02:49:09,963 INFO L480 AbstractCegarLoop]: Abstraction has has 353 places, 487 transitions, 8037 flow [2021-03-11 02:49:09,964 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:09,964 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:49:09,964 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:49:09,964 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-11 02:49:09,964 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:49:09,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:49:09,964 INFO L82 PathProgramCache]: Analyzing trace with hash 832450406, now seen corresponding path program 11 times [2021-03-11 02:49:09,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:49:09,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957807618] [2021-03-11 02:49:09,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:49:09,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:49:10,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:10,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:10,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:10,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:10,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:10,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:49:10,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:10,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:49:10,052 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:49:10,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:49:10,058 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:49:10,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:10,066 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:49:10,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:49:10,078 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-11 02:49:10,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:49:10,091 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:49:10,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:49:10,104 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:49:10,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:49:10,132 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:49:10,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:49:10,148 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-11 02:49:10,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 02:49:10,168 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:49:10,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:49:10,180 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 02:49:10,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:49:10,195 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:49:10,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:10,208 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:49:10,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:10,209 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:49:10,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:49:10,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:10,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:49:10,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:10,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:49:10,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:10,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:49:10,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:10,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:10,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:49:10,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957807618] [2021-03-11 02:49:10,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:49:10,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:49:10,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673924329] [2021-03-11 02:49:10,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:49:10,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:49:10,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:49:10,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:49:10,253 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:49:10,254 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 487 transitions, 8037 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:10,254 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:49:10,254 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:49:10,254 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:49:13,404 INFO L129 PetriNetUnfolder]: 3177/9895 cut-off events. [2021-03-11 02:49:13,404 INFO L130 PetriNetUnfolder]: For 85918/86624 co-relation queries the response was YES. [2021-03-11 02:49:13,469 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41986 conditions, 9895 events. 3177/9895 cut-off events. For 85918/86624 co-relation queries the response was YES. Maximal size of possible extension queue 560. Compared 108941 event pairs, 966 based on Foata normal form. 138/9796 useless extension candidates. Maximal degree in co-relation 41882. Up to 3683 conditions per place. [2021-03-11 02:49:13,489 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 400 selfloop transitions, 183 changer transitions 0/626 dead transitions. [2021-03-11 02:49:13,489 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 626 transitions, 10819 flow [2021-03-11 02:49:13,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-11 02:49:13,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-03-11 02:49:13,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1397 transitions. [2021-03-11 02:49:13,491 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4264346764346764 [2021-03-11 02:49:13,491 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1397 transitions. [2021-03-11 02:49:13,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1397 transitions. [2021-03-11 02:49:13,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:49:13,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1397 transitions. [2021-03-11 02:49:13,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.52380952380952) internal successors, (1397), 21 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:13,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:13,495 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:13,495 INFO L185 Difference]: Start difference. First operand has 353 places, 487 transitions, 8037 flow. Second operand 21 states and 1397 transitions. [2021-03-11 02:49:13,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 626 transitions, 10819 flow [2021-03-11 02:49:13,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 626 transitions, 10650 flow, removed 54 selfloop flow, removed 6 redundant places. [2021-03-11 02:49:14,004 INFO L241 Difference]: Finished difference. Result has 376 places, 521 transitions, 9102 flow [2021-03-11 02:49:14,005 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=7885, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=487, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=9102, PETRI_PLACES=376, PETRI_TRANSITIONS=521} [2021-03-11 02:49:14,005 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 234 predicate places. [2021-03-11 02:49:14,005 INFO L480 AbstractCegarLoop]: Abstraction has has 376 places, 521 transitions, 9102 flow [2021-03-11 02:49:14,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:14,005 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:49:14,005 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:49:14,006 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-11 02:49:14,006 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:49:14,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:49:14,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1770310272, now seen corresponding path program 12 times [2021-03-11 02:49:14,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:49:14,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195364256] [2021-03-11 02:49:14,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:49:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:49:14,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:14,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:14,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:14,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:14,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:14,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 02:49:14,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:14,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 02:49:14,108 INFO L142 QuantifierPusher]: treesize reduction 20, result has 53.5 percent of original size [2021-03-11 02:49:14,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:49:14,127 INFO L142 QuantifierPusher]: treesize reduction 11, result has 62.1 percent of original size [2021-03-11 02:49:14,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 02:49:14,136 INFO L142 QuantifierPusher]: treesize reduction 11, result has 62.1 percent of original size [2021-03-11 02:49:14,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 02:49:14,148 INFO L142 QuantifierPusher]: treesize reduction 15, result has 51.6 percent of original size [2021-03-11 02:49:14,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 02:49:14,160 INFO L142 QuantifierPusher]: treesize reduction 15, result has 48.3 percent of original size [2021-03-11 02:49:14,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 02:49:14,169 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:49:14,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:49:14,182 INFO L142 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-03-11 02:49:14,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 02:49:14,190 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-11 02:49:14,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:14,201 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:49:14,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:49:14,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:14,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:49:14,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:14,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:49:14,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:14,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:49:14,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:14,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:14,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:49:14,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195364256] [2021-03-11 02:49:14,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:49:14,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-11 02:49:14,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066525505] [2021-03-11 02:49:14,238 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 02:49:14,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:49:14,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 02:49:14,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-03-11 02:49:14,240 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 156 [2021-03-11 02:49:14,241 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 521 transitions, 9102 flow. Second operand has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:14,241 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:49:14,241 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 156 [2021-03-11 02:49:14,241 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:49:17,171 INFO L129 PetriNetUnfolder]: 3372/11520 cut-off events. [2021-03-11 02:49:17,171 INFO L130 PetriNetUnfolder]: For 116716/117617 co-relation queries the response was YES. [2021-03-11 02:49:17,252 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48377 conditions, 11520 events. 3372/11520 cut-off events. For 116716/117617 co-relation queries the response was YES. Maximal size of possible extension queue 764. Compared 137471 event pairs, 517 based on Foata normal form. 458/11731 useless extension candidates. Maximal degree in co-relation 48263. Up to 2355 conditions per place. [2021-03-11 02:49:17,276 INFO L132 encePairwiseOnDemand]: 131/156 looper letters, 494 selfloop transitions, 286 changer transitions 0/837 dead transitions. [2021-03-11 02:49:17,276 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 837 transitions, 16357 flow [2021-03-11 02:49:17,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-11 02:49:17,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-11 02:49:17,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1323 transitions. [2021-03-11 02:49:17,278 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44635627530364375 [2021-03-11 02:49:17,278 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1323 transitions. [2021-03-11 02:49:17,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1323 transitions. [2021-03-11 02:49:17,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:49:17,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1323 transitions. [2021-03-11 02:49:17,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 69.63157894736842) internal successors, (1323), 19 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:17,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:17,282 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:17,282 INFO L185 Difference]: Start difference. First operand has 376 places, 521 transitions, 9102 flow. Second operand 19 states and 1323 transitions. [2021-03-11 02:49:17,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 837 transitions, 16357 flow [2021-03-11 02:49:17,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 837 transitions, 16112 flow, removed 55 selfloop flow, removed 8 redundant places. [2021-03-11 02:49:17,844 INFO L241 Difference]: Finished difference. Result has 395 places, 633 transitions, 12643 flow [2021-03-11 02:49:17,845 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=8912, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=184, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=12643, PETRI_PLACES=395, PETRI_TRANSITIONS=633} [2021-03-11 02:49:17,845 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 253 predicate places. [2021-03-11 02:49:17,845 INFO L480 AbstractCegarLoop]: Abstraction has has 395 places, 633 transitions, 12643 flow [2021-03-11 02:49:17,845 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:17,845 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:49:17,845 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:49:17,845 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-11 02:49:17,845 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:49:17,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:49:17,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1825072326, now seen corresponding path program 13 times [2021-03-11 02:49:17,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:49:17,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488846536] [2021-03-11 02:49:17,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:49:17,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:49:17,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:17,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:17,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:17,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:49:17,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:17,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:49:17,940 INFO L142 QuantifierPusher]: treesize reduction 20, result has 52.4 percent of original size [2021-03-11 02:49:17,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:49:17,955 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-11 02:49:17,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:17,964 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-11 02:49:17,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:17,974 INFO L142 QuantifierPusher]: treesize reduction 11, result has 59.3 percent of original size [2021-03-11 02:49:17,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 02:49:17,984 INFO L142 QuantifierPusher]: treesize reduction 15, result has 48.3 percent of original size [2021-03-11 02:49:17,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 02:49:17,993 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:49:17,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:49:18,005 INFO L142 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-03-11 02:49:18,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 02:49:18,013 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-11 02:49:18,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:18,023 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:49:18,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:49:18,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:18,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:49:18,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:18,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:49:18,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:18,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:49:18,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:18,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:18,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:49:18,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488846536] [2021-03-11 02:49:18,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:49:18,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-11 02:49:18,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332215382] [2021-03-11 02:49:18,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 02:49:18,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:49:18,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 02:49:18,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-03-11 02:49:18,060 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 156 [2021-03-11 02:49:18,060 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 633 transitions, 12643 flow. Second operand has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:18,060 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:49:18,060 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 156 [2021-03-11 02:49:18,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:49:21,385 INFO L129 PetriNetUnfolder]: 3385/11916 cut-off events. [2021-03-11 02:49:21,385 INFO L130 PetriNetUnfolder]: For 149928/150855 co-relation queries the response was YES. [2021-03-11 02:49:21,531 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53629 conditions, 11916 events. 3385/11916 cut-off events. For 149928/150855 co-relation queries the response was YES. Maximal size of possible extension queue 787. Compared 142296 event pairs, 1436 based on Foata normal form. 417/12055 useless extension candidates. Maximal degree in co-relation 53506. Up to 3130 conditions per place. [2021-03-11 02:49:21,563 INFO L132 encePairwiseOnDemand]: 133/156 looper letters, 536 selfloop transitions, 271 changer transitions 0/864 dead transitions. [2021-03-11 02:49:21,563 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 864 transitions, 18412 flow [2021-03-11 02:49:21,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-11 02:49:21,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-11 02:49:21,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1314 transitions. [2021-03-11 02:49:21,565 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4433198380566802 [2021-03-11 02:49:21,565 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1314 transitions. [2021-03-11 02:49:21,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1314 transitions. [2021-03-11 02:49:21,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:49:21,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1314 transitions. [2021-03-11 02:49:21,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 69.15789473684211) internal successors, (1314), 19 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:21,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:21,568 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:21,568 INFO L185 Difference]: Start difference. First operand has 395 places, 633 transitions, 12643 flow. Second operand 19 states and 1314 transitions. [2021-03-11 02:49:21,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 864 transitions, 18412 flow [2021-03-11 02:49:22,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 864 transitions, 18132 flow, removed 111 selfloop flow, removed 6 redundant places. [2021-03-11 02:49:22,323 INFO L241 Difference]: Finished difference. Result has 417 places, 699 transitions, 15134 flow [2021-03-11 02:49:22,324 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=12411, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=633, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=207, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=15134, PETRI_PLACES=417, PETRI_TRANSITIONS=699} [2021-03-11 02:49:22,324 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 275 predicate places. [2021-03-11 02:49:22,324 INFO L480 AbstractCegarLoop]: Abstraction has has 417 places, 699 transitions, 15134 flow [2021-03-11 02:49:22,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:22,324 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:49:22,324 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:49:22,324 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-11 02:49:22,324 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:49:22,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:49:22,325 INFO L82 PathProgramCache]: Analyzing trace with hash 140684552, now seen corresponding path program 14 times [2021-03-11 02:49:22,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:49:22,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323692721] [2021-03-11 02:49:22,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:49:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:49:22,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:22,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:22,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:22,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:22,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:22,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:49:22,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:22,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:49:22,408 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:49:22,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:49:22,414 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:49:22,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:22,422 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:49:22,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:49:22,437 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-11 02:49:22,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:49:22,450 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-11 02:49:22,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:49:22,463 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-11 02:49:22,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 02:49:22,479 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:49:22,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:49:22,491 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-11 02:49:22,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 02:49:22,508 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:49:22,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:49:22,518 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 02:49:22,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:49:22,532 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:49:22,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:22,545 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:49:22,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:22,546 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:49:22,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:49:22,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:22,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:49:22,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:22,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:49:22,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:22,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:49:22,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:22,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:22,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:49:22,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323692721] [2021-03-11 02:49:22,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:49:22,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:49:22,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717590056] [2021-03-11 02:49:22,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:49:22,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:49:22,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:49:22,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:49:22,592 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:49:22,592 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 699 transitions, 15134 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:22,592 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:49:22,592 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:49:22,592 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:49:27,054 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-03-11 02:49:27,830 INFO L129 PetriNetUnfolder]: 3747/12616 cut-off events. [2021-03-11 02:49:27,831 INFO L130 PetriNetUnfolder]: For 156762/157708 co-relation queries the response was YES. [2021-03-11 02:49:27,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 59159 conditions, 12616 events. 3747/12616 cut-off events. For 156762/157708 co-relation queries the response was YES. Maximal size of possible extension queue 818. Compared 149548 event pairs, 544 based on Foata normal form. 403/12757 useless extension candidates. Maximal degree in co-relation 59025. Up to 2957 conditions per place. [2021-03-11 02:49:27,954 INFO L132 encePairwiseOnDemand]: 129/156 looper letters, 448 selfloop transitions, 404 changer transitions 0/895 dead transitions. [2021-03-11 02:49:27,954 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 895 transitions, 19355 flow [2021-03-11 02:49:27,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-11 02:49:27,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2021-03-11 02:49:27,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 1924 transitions. [2021-03-11 02:49:27,956 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.42528735632183906 [2021-03-11 02:49:27,956 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 1924 transitions. [2021-03-11 02:49:27,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 1924 transitions. [2021-03-11 02:49:27,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:49:27,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 1924 transitions. [2021-03-11 02:49:27,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 66.34482758620689) internal successors, (1924), 29 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:27,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 156.0) internal successors, (4680), 30 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:27,961 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 156.0) internal successors, (4680), 30 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:27,961 INFO L185 Difference]: Start difference. First operand has 417 places, 699 transitions, 15134 flow. Second operand 29 states and 1924 transitions. [2021-03-11 02:49:27,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 895 transitions, 19355 flow [2021-03-11 02:49:28,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 895 transitions, 18928 flow, removed 131 selfloop flow, removed 7 redundant places. [2021-03-11 02:49:28,870 INFO L241 Difference]: Finished difference. Result has 446 places, 732 transitions, 16855 flow [2021-03-11 02:49:28,871 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=14788, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=699, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=371, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=16855, PETRI_PLACES=446, PETRI_TRANSITIONS=732} [2021-03-11 02:49:28,871 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 304 predicate places. [2021-03-11 02:49:28,871 INFO L480 AbstractCegarLoop]: Abstraction has has 446 places, 732 transitions, 16855 flow [2021-03-11 02:49:28,871 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:28,871 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:49:28,872 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:49:28,872 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-11 02:49:28,872 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:49:28,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:49:28,872 INFO L82 PathProgramCache]: Analyzing trace with hash 994796840, now seen corresponding path program 15 times [2021-03-11 02:49:28,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:49:28,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194602065] [2021-03-11 02:49:28,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:49:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:49:28,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:28,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:28,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:28,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:49:28,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:28,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:49:28,971 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:49:28,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:49:28,978 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:49:28,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:28,986 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:49:28,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:49:28,997 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:49:28,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:49:29,009 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-11 02:49:29,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:49:29,021 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-11 02:49:29,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 02:49:29,035 INFO L142 QuantifierPusher]: treesize reduction 16, result has 67.3 percent of original size [2021-03-11 02:49:29,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 02:49:29,052 INFO L142 QuantifierPusher]: treesize reduction 16, result has 71.4 percent of original size [2021-03-11 02:49:29,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 02:49:29,068 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.7 percent of original size [2021-03-11 02:49:29,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 02:49:29,085 INFO L142 QuantifierPusher]: treesize reduction 9, result has 66.7 percent of original size [2021-03-11 02:49:29,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 02:49:29,101 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:49:29,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:29,112 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:49:29,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:29,113 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:49:29,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:49:29,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:29,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:49:29,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:29,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:49:29,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:29,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:49:29,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:29,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:29,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:49:29,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194602065] [2021-03-11 02:49:29,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:49:29,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:49:29,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777020392] [2021-03-11 02:49:29,154 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:49:29,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:49:29,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:49:29,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:49:29,155 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:49:29,156 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 732 transitions, 16855 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:29,156 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:49:29,156 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:49:29,156 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:49:34,127 INFO L129 PetriNetUnfolder]: 4193/14166 cut-off events. [2021-03-11 02:49:34,127 INFO L130 PetriNetUnfolder]: For 190032/190812 co-relation queries the response was YES. [2021-03-11 02:49:34,250 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67911 conditions, 14166 events. 4193/14166 cut-off events. For 190032/190812 co-relation queries the response was YES. Maximal size of possible extension queue 910. Compared 171940 event pairs, 1661 based on Foata normal form. 169/14010 useless extension candidates. Maximal degree in co-relation 67771. Up to 4520 conditions per place. [2021-03-11 02:49:34,282 INFO L132 encePairwiseOnDemand]: 130/156 looper letters, 638 selfloop transitions, 286 changer transitions 0/967 dead transitions. [2021-03-11 02:49:34,282 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 967 transitions, 22865 flow [2021-03-11 02:49:34,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-11 02:49:34,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-11 02:49:34,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1279 transitions. [2021-03-11 02:49:34,284 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4315114709851552 [2021-03-11 02:49:34,284 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1279 transitions. [2021-03-11 02:49:34,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1279 transitions. [2021-03-11 02:49:34,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:49:34,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1279 transitions. [2021-03-11 02:49:34,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 67.3157894736842) internal successors, (1279), 19 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:34,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:34,287 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:34,287 INFO L185 Difference]: Start difference. First operand has 446 places, 732 transitions, 16855 flow. Second operand 19 states and 1279 transitions. [2021-03-11 02:49:34,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 967 transitions, 22865 flow [2021-03-11 02:49:35,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 967 transitions, 22471 flow, removed 52 selfloop flow, removed 14 redundant places. [2021-03-11 02:49:35,437 INFO L241 Difference]: Finished difference. Result has 461 places, 800 transitions, 19381 flow [2021-03-11 02:49:35,437 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=16536, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=732, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=219, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=19381, PETRI_PLACES=461, PETRI_TRANSITIONS=800} [2021-03-11 02:49:35,437 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 319 predicate places. [2021-03-11 02:49:35,437 INFO L480 AbstractCegarLoop]: Abstraction has has 461 places, 800 transitions, 19381 flow [2021-03-11 02:49:35,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:35,438 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:49:35,438 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:49:35,438 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-11 02:49:35,438 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:49:35,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:49:35,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1303584196, now seen corresponding path program 16 times [2021-03-11 02:49:35,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:49:35,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368088437] [2021-03-11 02:49:35,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:49:35,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:49:35,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:35,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:35,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:35,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:35,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:35,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:49:35,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:35,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:49:35,520 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:49:35,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:49:35,527 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:49:35,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:35,535 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:49:35,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:49:35,546 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-11 02:49:35,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:49:35,558 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-11 02:49:35,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:49:35,576 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:49:35,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:49:35,590 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:49:35,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:49:35,606 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:49:35,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:49:35,626 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-11 02:49:35,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 02:49:35,643 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:49:35,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:35,659 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:49:35,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:35,660 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:49:35,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:49:35,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:35,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:49:35,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:35,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:49:35,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:35,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:49:35,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:35,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:35,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:49:35,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368088437] [2021-03-11 02:49:35,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:49:35,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:49:35,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582046839] [2021-03-11 02:49:35,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:49:35,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:49:35,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:49:35,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:49:35,706 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:49:35,706 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 800 transitions, 19381 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:35,706 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:49:35,706 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:49:35,706 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:49:40,346 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2021-03-11 02:49:40,943 INFO L129 PetriNetUnfolder]: 4190/14205 cut-off events. [2021-03-11 02:49:40,943 INFO L130 PetriNetUnfolder]: For 209353/210541 co-relation queries the response was YES. [2021-03-11 02:49:41,074 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69037 conditions, 14205 events. 4190/14205 cut-off events. For 209353/210541 co-relation queries the response was YES. Maximal size of possible extension queue 903. Compared 172263 event pairs, 1608 based on Foata normal form. 244/14110 useless extension candidates. Maximal degree in co-relation 68886. Up to 6801 conditions per place. [2021-03-11 02:49:41,105 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 593 selfloop transitions, 306 changer transitions 0/942 dead transitions. [2021-03-11 02:49:41,105 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 942 transitions, 23228 flow [2021-03-11 02:49:41,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-11 02:49:41,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-03-11 02:49:41,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1402 transitions. [2021-03-11 02:49:41,107 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.42796092796092794 [2021-03-11 02:49:41,107 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1402 transitions. [2021-03-11 02:49:41,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1402 transitions. [2021-03-11 02:49:41,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:49:41,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1402 transitions. [2021-03-11 02:49:41,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.76190476190476) internal successors, (1402), 21 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:41,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:41,111 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:41,111 INFO L185 Difference]: Start difference. First operand has 461 places, 800 transitions, 19381 flow. Second operand 21 states and 1402 transitions. [2021-03-11 02:49:41,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 942 transitions, 23228 flow [2021-03-11 02:49:42,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 942 transitions, 22814 flow, removed 195 selfloop flow, removed 5 redundant places. [2021-03-11 02:49:42,410 INFO L241 Difference]: Finished difference. Result has 485 places, 835 transitions, 20881 flow [2021-03-11 02:49:42,411 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=18973, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=800, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=271, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=501, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=20881, PETRI_PLACES=485, PETRI_TRANSITIONS=835} [2021-03-11 02:49:42,411 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 343 predicate places. [2021-03-11 02:49:42,411 INFO L480 AbstractCegarLoop]: Abstraction has has 485 places, 835 transitions, 20881 flow [2021-03-11 02:49:42,411 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:42,411 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:49:42,411 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:49:42,412 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-11 02:49:42,412 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:49:42,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:49:42,412 INFO L82 PathProgramCache]: Analyzing trace with hash -172674460, now seen corresponding path program 17 times [2021-03-11 02:49:42,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:49:42,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256519642] [2021-03-11 02:49:42,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:49:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:49:42,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:42,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:42,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:42,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:42,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:42,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:49:42,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:42,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:49:42,495 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:49:42,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:49:42,502 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:49:42,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:42,510 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:49:42,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:49:42,531 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:49:42,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:49:42,543 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-11 02:49:42,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:49:42,558 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-11 02:49:42,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 02:49:42,573 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:49:42,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:49:42,586 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-11 02:49:42,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 02:49:42,602 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:49:42,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:49:42,616 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 02:49:42,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:49:42,629 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:49:42,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:42,640 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:49:42,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:42,641 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:49:42,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:49:42,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:42,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:49:42,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:42,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:49:42,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:42,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:49:42,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:42,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:42,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:49:42,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256519642] [2021-03-11 02:49:42,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:49:42,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:49:42,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205364915] [2021-03-11 02:49:42,677 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:49:42,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:49:42,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:49:42,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:49:42,678 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:49:42,679 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 835 transitions, 20881 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:42,679 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:49:42,679 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:49:42,679 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:49:48,249 INFO L129 PetriNetUnfolder]: 4187/14252 cut-off events. [2021-03-11 02:49:48,249 INFO L130 PetriNetUnfolder]: For 217295/218332 co-relation queries the response was YES. [2021-03-11 02:49:48,405 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69793 conditions, 14252 events. 4187/14252 cut-off events. For 217295/218332 co-relation queries the response was YES. Maximal size of possible extension queue 909. Compared 172994 event pairs, 1667 based on Foata normal form. 265/14190 useless extension candidates. Maximal degree in co-relation 69633. Up to 4414 conditions per place. [2021-03-11 02:49:48,440 INFO L132 encePairwiseOnDemand]: 130/156 looper letters, 617 selfloop transitions, 335 changer transitions 0/995 dead transitions. [2021-03-11 02:49:48,440 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 995 transitions, 25269 flow [2021-03-11 02:49:48,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-11 02:49:48,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-11 02:49:48,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1342 transitions. [2021-03-11 02:49:48,442 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.43012820512820515 [2021-03-11 02:49:48,442 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1342 transitions. [2021-03-11 02:49:48,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1342 transitions. [2021-03-11 02:49:48,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:49:48,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1342 transitions. [2021-03-11 02:49:48,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 67.1) internal successors, (1342), 20 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:48,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:48,445 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:48,445 INFO L185 Difference]: Start difference. First operand has 485 places, 835 transitions, 20881 flow. Second operand 20 states and 1342 transitions. [2021-03-11 02:49:48,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 504 places, 995 transitions, 25269 flow [2021-03-11 02:49:49,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 497 places, 995 transitions, 24888 flow, removed 98 selfloop flow, removed 7 redundant places. [2021-03-11 02:49:49,879 INFO L241 Difference]: Finished difference. Result has 505 places, 866 transitions, 22566 flow [2021-03-11 02:49:49,880 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=20509, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=835, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=304, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=506, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=22566, PETRI_PLACES=505, PETRI_TRANSITIONS=866} [2021-03-11 02:49:49,880 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 363 predicate places. [2021-03-11 02:49:49,880 INFO L480 AbstractCegarLoop]: Abstraction has has 505 places, 866 transitions, 22566 flow [2021-03-11 02:49:49,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:49,881 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:49:49,881 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:49:49,881 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-11 02:49:49,881 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:49:49,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:49:49,881 INFO L82 PathProgramCache]: Analyzing trace with hash 1855415832, now seen corresponding path program 18 times [2021-03-11 02:49:49,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:49:49,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272621827] [2021-03-11 02:49:49,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:49:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:49:50,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:50,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:50,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:50,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:50,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:50,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:49:50,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:50,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:49:50,031 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:49:50,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:49:50,038 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:49:50,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:50,046 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:49:50,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:49:50,058 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-11 02:49:50,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:49:50,069 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:49:50,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:49:50,082 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:49:50,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:49:50,096 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:49:50,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:49:50,113 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:49:50,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:49:50,135 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-11 02:49:50,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 02:49:50,153 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:49:50,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:50,168 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:49:50,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:50,169 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:49:50,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:49:50,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:50,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:49:50,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:50,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:49:50,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:50,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:49:50,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:50,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:50,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:49:50,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272621827] [2021-03-11 02:49:50,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:49:50,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:49:50,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992531381] [2021-03-11 02:49:50,217 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:49:50,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:49:50,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:49:50,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:49:50,219 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:49:50,220 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 505 places, 866 transitions, 22566 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:50,220 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:49:50,220 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:49:50,220 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:49:55,807 INFO L129 PetriNetUnfolder]: 4184/14282 cut-off events. [2021-03-11 02:49:55,807 INFO L130 PetriNetUnfolder]: For 232550/233572 co-relation queries the response was YES. [2021-03-11 02:49:55,999 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71172 conditions, 14282 events. 4184/14282 cut-off events. For 232550/233572 co-relation queries the response was YES. Maximal size of possible extension queue 903. Compared 173128 event pairs, 1640 based on Foata normal form. 217/14164 useless extension candidates. Maximal degree in co-relation 71004. Up to 3854 conditions per place. [2021-03-11 02:49:56,033 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 668 selfloop transitions, 343 changer transitions 0/1054 dead transitions. [2021-03-11 02:49:56,034 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 525 places, 1054 transitions, 27562 flow [2021-03-11 02:49:56,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-11 02:49:56,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-03-11 02:49:56,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1399 transitions. [2021-03-11 02:49:56,035 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.427045177045177 [2021-03-11 02:49:56,035 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1399 transitions. [2021-03-11 02:49:56,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1399 transitions. [2021-03-11 02:49:56,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:49:56,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1399 transitions. [2021-03-11 02:49:56,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.61904761904762) internal successors, (1399), 21 states have internal predecessors, (1399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:56,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:56,038 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:56,038 INFO L185 Difference]: Start difference. First operand has 505 places, 866 transitions, 22566 flow. Second operand 21 states and 1399 transitions. [2021-03-11 02:49:56,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 525 places, 1054 transitions, 27562 flow [2021-03-11 02:49:57,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 519 places, 1054 transitions, 27274 flow, removed 114 selfloop flow, removed 6 redundant places. [2021-03-11 02:49:57,569 INFO L241 Difference]: Finished difference. Result has 528 places, 898 transitions, 24064 flow [2021-03-11 02:49:57,569 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=22281, PETRI_DIFFERENCE_MINUEND_PLACES=499, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=866, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=311, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=532, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=24064, PETRI_PLACES=528, PETRI_TRANSITIONS=898} [2021-03-11 02:49:57,569 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 386 predicate places. [2021-03-11 02:49:57,570 INFO L480 AbstractCegarLoop]: Abstraction has has 528 places, 898 transitions, 24064 flow [2021-03-11 02:49:57,570 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:57,570 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:49:57,570 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:49:57,570 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-11 02:49:57,570 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:49:57,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:49:57,570 INFO L82 PathProgramCache]: Analyzing trace with hash 2142758102, now seen corresponding path program 19 times [2021-03-11 02:49:57,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:49:57,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484374878] [2021-03-11 02:49:57,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:49:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:49:57,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:57,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:57,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:57,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:57,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:57,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:49:57,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:57,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:49:57,656 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:49:57,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:49:57,663 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:49:57,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:57,671 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:49:57,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:49:57,682 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:49:57,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:49:57,694 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-11 02:49:57,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:49:57,709 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:49:57,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:49:57,723 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:49:57,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:49:57,738 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:49:57,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:49:57,758 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-11 02:49:57,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 02:49:57,775 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:49:57,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:57,789 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:49:57,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:49:57,790 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:49:57,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:49:57,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:57,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:49:57,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:57,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:49:57,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:57,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:49:57,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:49:57,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:49:57,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:49:57,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484374878] [2021-03-11 02:49:57,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:49:57,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:49:57,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095810750] [2021-03-11 02:49:57,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:49:57,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:49:57,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:49:57,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:49:57,837 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:49:57,837 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 528 places, 898 transitions, 24064 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:49:57,837 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:49:57,837 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:49:57,837 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:50:04,037 INFO L129 PetriNetUnfolder]: 4178/14375 cut-off events. [2021-03-11 02:50:04,037 INFO L130 PetriNetUnfolder]: For 255692/256712 co-relation queries the response was YES. [2021-03-11 02:50:04,189 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73008 conditions, 14375 events. 4178/14375 cut-off events. For 255692/256712 co-relation queries the response was YES. Maximal size of possible extension queue 906. Compared 174858 event pairs, 1760 based on Foata normal form. 230/14262 useless extension candidates. Maximal degree in co-relation 72830. Up to 4414 conditions per place. [2021-03-11 02:50:04,219 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 666 selfloop transitions, 360 changer transitions 0/1069 dead transitions. [2021-03-11 02:50:04,219 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 548 places, 1069 transitions, 29467 flow [2021-03-11 02:50:04,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-11 02:50:04,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-03-11 02:50:04,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1400 transitions. [2021-03-11 02:50:04,220 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.42735042735042733 [2021-03-11 02:50:04,220 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1400 transitions. [2021-03-11 02:50:04,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1400 transitions. [2021-03-11 02:50:04,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:50:04,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1400 transitions. [2021-03-11 02:50:04,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.66666666666667) internal successors, (1400), 21 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:04,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:04,223 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:04,224 INFO L185 Difference]: Start difference. First operand has 528 places, 898 transitions, 24064 flow. Second operand 21 states and 1400 transitions. [2021-03-11 02:50:04,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 548 places, 1069 transitions, 29467 flow [2021-03-11 02:50:05,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 1069 transitions, 29111 flow, removed 86 selfloop flow, removed 8 redundant places. [2021-03-11 02:50:05,817 INFO L241 Difference]: Finished difference. Result has 550 places, 943 transitions, 26578 flow [2021-03-11 02:50:05,817 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=23718, PETRI_DIFFERENCE_MINUEND_PLACES=520, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=898, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=315, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=553, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=26578, PETRI_PLACES=550, PETRI_TRANSITIONS=943} [2021-03-11 02:50:05,817 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 408 predicate places. [2021-03-11 02:50:05,818 INFO L480 AbstractCegarLoop]: Abstraction has has 550 places, 943 transitions, 26578 flow [2021-03-11 02:50:05,818 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:05,818 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:50:05,818 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:50:05,818 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-11 02:50:05,818 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:50:05,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:50:05,818 INFO L82 PathProgramCache]: Analyzing trace with hash -89425290, now seen corresponding path program 20 times [2021-03-11 02:50:05,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:50:05,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075831653] [2021-03-11 02:50:05,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:50:05,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:50:05,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:05,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:50:05,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:05,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:50:05,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:05,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:50:05,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:05,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:50:05,973 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:50:05,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:50:05,980 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:50:05,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:50:05,989 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:50:05,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:50:06,001 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:50:06,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:50:06,014 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-11 02:50:06,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:50:06,029 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-11 02:50:06,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 02:50:06,046 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:50:06,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:50:06,061 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-11 02:50:06,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 02:50:06,080 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:50:06,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:50:06,090 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 02:50:06,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:50:06,104 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:50:06,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:50:06,116 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:50:06,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:50:06,116 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:50:06,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:50:06,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:06,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:50:06,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:06,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:50:06,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:06,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:50:06,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:06,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:50:06,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:50:06,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075831653] [2021-03-11 02:50:06,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:50:06,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:50:06,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793268953] [2021-03-11 02:50:06,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:50:06,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:50:06,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:50:06,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:50:06,158 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:50:06,158 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 550 places, 943 transitions, 26578 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:06,158 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:50:06,158 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:50:06,158 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:50:13,032 INFO L129 PetriNetUnfolder]: 4178/14385 cut-off events. [2021-03-11 02:50:13,032 INFO L130 PetriNetUnfolder]: For 270438/271498 co-relation queries the response was YES. [2021-03-11 02:50:13,194 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73834 conditions, 14385 events. 4178/14385 cut-off events. For 270438/271498 co-relation queries the response was YES. Maximal size of possible extension queue 918. Compared 175256 event pairs, 1577 based on Foata normal form. 290/14343 useless extension candidates. Maximal degree in co-relation 73647. Up to 4414 conditions per place. [2021-03-11 02:50:13,233 INFO L132 encePairwiseOnDemand]: 129/156 looper letters, 704 selfloop transitions, 391 changer transitions 0/1138 dead transitions. [2021-03-11 02:50:13,234 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 576 places, 1138 transitions, 31113 flow [2021-03-11 02:50:13,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-11 02:50:13,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2021-03-11 02:50:13,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 1796 transitions. [2021-03-11 02:50:13,235 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4264007597340931 [2021-03-11 02:50:13,235 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 1796 transitions. [2021-03-11 02:50:13,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 1796 transitions. [2021-03-11 02:50:13,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:50:13,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 1796 transitions. [2021-03-11 02:50:13,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 66.51851851851852) internal successors, (1796), 27 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:13,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 156.0) internal successors, (4368), 28 states have internal predecessors, (4368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:13,239 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 156.0) internal successors, (4368), 28 states have internal predecessors, (4368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:13,239 INFO L185 Difference]: Start difference. First operand has 550 places, 943 transitions, 26578 flow. Second operand 27 states and 1796 transitions. [2021-03-11 02:50:13,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 576 places, 1138 transitions, 31113 flow [2021-03-11 02:50:15,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 568 places, 1138 transitions, 30720 flow, removed 134 selfloop flow, removed 8 redundant places. [2021-03-11 02:50:15,166 INFO L241 Difference]: Finished difference. Result has 573 places, 962 transitions, 27619 flow [2021-03-11 02:50:15,167 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=26185, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=943, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=372, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=553, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=27619, PETRI_PLACES=573, PETRI_TRANSITIONS=962} [2021-03-11 02:50:15,167 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 431 predicate places. [2021-03-11 02:50:15,167 INFO L480 AbstractCegarLoop]: Abstraction has has 573 places, 962 transitions, 27619 flow [2021-03-11 02:50:15,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:15,167 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:50:15,167 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:50:15,167 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-11 02:50:15,167 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:50:15,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:50:15,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1075330536, now seen corresponding path program 21 times [2021-03-11 02:50:15,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:50:15,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67439079] [2021-03-11 02:50:15,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:50:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:50:15,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:15,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:50:15,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:15,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:50:15,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:15,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:50:15,250 INFO L142 QuantifierPusher]: treesize reduction 30, result has 33.3 percent of original size [2021-03-11 02:50:15,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:50:15,258 INFO L142 QuantifierPusher]: treesize reduction 14, result has 54.8 percent of original size [2021-03-11 02:50:15,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:50:15,267 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 02:50:15,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:50:15,279 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 02:50:15,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:50:15,291 INFO L142 QuantifierPusher]: treesize reduction 18, result has 59.1 percent of original size [2021-03-11 02:50:15,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:50:15,307 INFO L142 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size [2021-03-11 02:50:15,308 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-11 02:50:15,332 INFO L142 QuantifierPusher]: treesize reduction 21, result has 56.3 percent of original size [2021-03-11 02:50:15,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:50:15,354 INFO L142 QuantifierPusher]: treesize reduction 21, result has 67.2 percent of original size [2021-03-11 02:50:15,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 02:50:15,438 INFO L142 QuantifierPusher]: treesize reduction 20, result has 53.5 percent of original size [2021-03-11 02:50:15,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:50:15,452 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:50:15,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:50:15,453 INFO L142 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-03-11 02:50:15,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 02:50:15,462 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-11 02:50:15,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:50:15,474 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:50:15,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:50:15,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:15,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:50:15,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:15,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:50:15,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:15,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:50:15,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:15,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:50:15,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:50:15,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67439079] [2021-03-11 02:50:15,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:50:15,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:50:15,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622668917] [2021-03-11 02:50:15,522 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:50:15,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:50:15,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:50:15,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:50:15,523 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:50:15,523 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 962 transitions, 27619 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:15,523 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:50:15,524 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:50:15,524 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:50:22,009 INFO L129 PetriNetUnfolder]: 4175/14400 cut-off events. [2021-03-11 02:50:22,009 INFO L130 PetriNetUnfolder]: For 286040/287101 co-relation queries the response was YES. [2021-03-11 02:50:22,178 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75278 conditions, 14400 events. 4175/14400 cut-off events. For 286040/287101 co-relation queries the response was YES. Maximal size of possible extension queue 903. Compared 175304 event pairs, 1804 based on Foata normal form. 215/14274 useless extension candidates. Maximal degree in co-relation 75085. Up to 4414 conditions per place. [2021-03-11 02:50:22,211 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 722 selfloop transitions, 356 changer transitions 0/1121 dead transitions. [2021-03-11 02:50:22,211 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 593 places, 1121 transitions, 32294 flow [2021-03-11 02:50:22,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-11 02:50:22,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-03-11 02:50:22,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1404 transitions. [2021-03-11 02:50:22,213 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2021-03-11 02:50:22,213 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1404 transitions. [2021-03-11 02:50:22,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1404 transitions. [2021-03-11 02:50:22,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:50:22,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1404 transitions. [2021-03-11 02:50:22,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.85714285714286) internal successors, (1404), 21 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:22,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:22,216 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:22,216 INFO L185 Difference]: Start difference. First operand has 573 places, 962 transitions, 27619 flow. Second operand 21 states and 1404 transitions. [2021-03-11 02:50:22,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 593 places, 1121 transitions, 32294 flow [2021-03-11 02:50:24,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 577 places, 1121 transitions, 31790 flow, removed 146 selfloop flow, removed 16 redundant places. [2021-03-11 02:50:24,429 INFO L241 Difference]: Finished difference. Result has 587 places, 998 transitions, 29442 flow [2021-03-11 02:50:24,430 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=27117, PETRI_DIFFERENCE_MINUEND_PLACES=557, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=962, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=320, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=612, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=29442, PETRI_PLACES=587, PETRI_TRANSITIONS=998} [2021-03-11 02:50:24,430 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 445 predicate places. [2021-03-11 02:50:24,430 INFO L480 AbstractCegarLoop]: Abstraction has has 587 places, 998 transitions, 29442 flow [2021-03-11 02:50:24,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:24,430 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:50:24,430 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:50:24,430 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-11 02:50:24,430 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:50:24,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:50:24,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1692438338, now seen corresponding path program 22 times [2021-03-11 02:50:24,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:50:24,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495385145] [2021-03-11 02:50:24,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:50:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:50:24,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:24,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:50:24,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:24,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:50:24,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:24,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:50:24,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:24,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:50:24,530 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:50:24,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:50:24,538 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:50:24,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:50:24,548 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:50:24,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:50:24,561 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:50:24,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:50:24,576 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-11 02:50:24,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:50:24,593 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:50:24,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:50:24,607 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:50:24,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:50:24,623 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:50:24,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:50:24,643 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-11 02:50:24,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 02:50:24,659 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:50:24,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:50:24,687 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:50:24,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:50:24,688 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:50:24,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:50:24,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:24,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:50:24,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:24,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:50:24,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:24,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:50:24,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:24,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:50:24,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:50:24,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495385145] [2021-03-11 02:50:24,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:50:24,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:50:24,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534991213] [2021-03-11 02:50:24,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:50:24,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:50:24,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:50:24,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:50:24,735 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:50:24,736 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 587 places, 998 transitions, 29442 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:24,736 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:50:24,736 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:50:24,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:50:31,598 INFO L129 PetriNetUnfolder]: 4169/14511 cut-off events. [2021-03-11 02:50:31,598 INFO L130 PetriNetUnfolder]: For 308987/310011 co-relation queries the response was YES. [2021-03-11 02:50:31,795 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76732 conditions, 14511 events. 4169/14511 cut-off events. For 308987/310011 co-relation queries the response was YES. Maximal size of possible extension queue 903. Compared 177132 event pairs, 1860 based on Foata normal form. 187/14349 useless extension candidates. Maximal degree in co-relation 76531. Up to 4414 conditions per place. [2021-03-11 02:50:31,832 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 753 selfloop transitions, 389 changer transitions 0/1185 dead transitions. [2021-03-11 02:50:31,832 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 607 places, 1185 transitions, 35299 flow [2021-03-11 02:50:31,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-11 02:50:31,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-03-11 02:50:31,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1404 transitions. [2021-03-11 02:50:31,833 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2021-03-11 02:50:31,833 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1404 transitions. [2021-03-11 02:50:31,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1404 transitions. [2021-03-11 02:50:31,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:50:31,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1404 transitions. [2021-03-11 02:50:31,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.85714285714286) internal successors, (1404), 21 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:31,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:31,836 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:31,836 INFO L185 Difference]: Start difference. First operand has 587 places, 998 transitions, 29442 flow. Second operand 21 states and 1404 transitions. [2021-03-11 02:50:31,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 607 places, 1185 transitions, 35299 flow [2021-03-11 02:50:34,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 599 places, 1185 transitions, 34867 flow, removed 140 selfloop flow, removed 8 redundant places. [2021-03-11 02:50:34,310 INFO L241 Difference]: Finished difference. Result has 607 places, 1040 transitions, 31690 flow [2021-03-11 02:50:34,311 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=29012, PETRI_DIFFERENCE_MINUEND_PLACES=579, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=998, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=353, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=627, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=31690, PETRI_PLACES=607, PETRI_TRANSITIONS=1040} [2021-03-11 02:50:34,311 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 465 predicate places. [2021-03-11 02:50:34,311 INFO L480 AbstractCegarLoop]: Abstraction has has 607 places, 1040 transitions, 31690 flow [2021-03-11 02:50:34,312 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:34,312 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:50:34,312 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:50:34,312 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-11 02:50:34,312 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:50:34,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:50:34,312 INFO L82 PathProgramCache]: Analyzing trace with hash 262202736, now seen corresponding path program 23 times [2021-03-11 02:50:34,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:50:34,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236287985] [2021-03-11 02:50:34,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:50:34,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:50:34,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:34,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:50:34,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:34,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:50:34,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:34,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:50:34,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:34,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:50:34,392 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:50:34,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:50:34,399 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:50:34,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:50:34,465 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:50:34,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:50:34,479 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:50:34,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:50:34,493 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-11 02:50:34,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:50:34,507 INFO L142 QuantifierPusher]: treesize reduction 14, result has 61.1 percent of original size [2021-03-11 02:50:34,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:50:34,521 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:50:34,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:50:34,536 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-11 02:50:34,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 02:50:34,555 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:50:34,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:50:34,566 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 02:50:34,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:50:34,581 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:50:34,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:50:34,595 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:50:34,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:50:34,596 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:50:34,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:50:34,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:34,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:50:34,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:34,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:50:34,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:34,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:50:34,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:34,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:50:34,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:50:34,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236287985] [2021-03-11 02:50:34,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:50:34,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:50:34,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925318113] [2021-03-11 02:50:34,643 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:50:34,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:50:34,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:50:34,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:50:34,644 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:50:34,645 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 607 places, 1040 transitions, 31690 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:34,645 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:50:34,645 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:50:34,645 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:50:40,980 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2021-03-11 02:50:41,751 INFO L129 PetriNetUnfolder]: 4169/14511 cut-off events. [2021-03-11 02:50:41,751 INFO L130 PetriNetUnfolder]: For 320836/321863 co-relation queries the response was YES. [2021-03-11 02:50:41,937 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77394 conditions, 14511 events. 4169/14511 cut-off events. For 320836/321863 co-relation queries the response was YES. Maximal size of possible extension queue 903. Compared 177250 event pairs, 1866 based on Foata normal form. 219/14381 useless extension candidates. Maximal degree in co-relation 77184. Up to 4414 conditions per place. [2021-03-11 02:50:41,969 INFO L132 encePairwiseOnDemand]: 131/156 looper letters, 761 selfloop transitions, 398 changer transitions 0/1202 dead transitions. [2021-03-11 02:50:41,969 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 628 places, 1202 transitions, 36209 flow [2021-03-11 02:50:41,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-11 02:50:41,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-03-11 02:50:41,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1474 transitions. [2021-03-11 02:50:41,971 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.42948717948717946 [2021-03-11 02:50:41,971 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1474 transitions. [2021-03-11 02:50:41,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1474 transitions. [2021-03-11 02:50:41,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:50:41,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1474 transitions. [2021-03-11 02:50:41,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 67.0) internal successors, (1474), 22 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:41,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 156.0) internal successors, (3588), 23 states have internal predecessors, (3588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:41,975 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 156.0) internal successors, (3588), 23 states have internal predecessors, (3588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:41,976 INFO L185 Difference]: Start difference. First operand has 607 places, 1040 transitions, 31690 flow. Second operand 22 states and 1474 transitions. [2021-03-11 02:50:41,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 628 places, 1202 transitions, 36209 flow [2021-03-11 02:50:44,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 620 places, 1202 transitions, 35513 flow, removed 125 selfloop flow, removed 8 redundant places. [2021-03-11 02:50:44,544 INFO L241 Difference]: Finished difference. Result has 629 places, 1061 transitions, 32483 flow [2021-03-11 02:50:44,545 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=30995, PETRI_DIFFERENCE_MINUEND_PLACES=599, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1040, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=377, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=643, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=32483, PETRI_PLACES=629, PETRI_TRANSITIONS=1061} [2021-03-11 02:50:44,545 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 487 predicate places. [2021-03-11 02:50:44,545 INFO L480 AbstractCegarLoop]: Abstraction has has 629 places, 1061 transitions, 32483 flow [2021-03-11 02:50:44,546 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:44,546 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:50:44,546 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:50:44,546 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-11 02:50:44,546 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:50:44,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:50:44,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1482073886, now seen corresponding path program 24 times [2021-03-11 02:50:44,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:50:44,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965922171] [2021-03-11 02:50:44,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:50:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:50:44,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:44,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:50:44,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:44,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:50:44,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:44,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:50:44,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:44,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:50:44,631 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:50:44,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:50:44,638 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:50:44,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:50:44,647 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:50:44,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:50:44,659 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-11 02:50:44,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:50:44,671 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-11 02:50:44,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:50:44,683 INFO L142 QuantifierPusher]: treesize reduction 14, result has 61.1 percent of original size [2021-03-11 02:50:44,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:50:44,696 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:50:44,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:50:44,711 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-11 02:50:44,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 02:50:44,728 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:50:44,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:50:44,739 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 02:50:44,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:50:44,753 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:50:44,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:50:44,766 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:50:44,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:50:44,767 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:50:44,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:50:44,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:44,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:50:44,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:44,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:50:44,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:44,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:50:44,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:44,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:50:44,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:50:44,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965922171] [2021-03-11 02:50:44,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:50:44,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:50:44,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098514880] [2021-03-11 02:50:44,811 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:50:44,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:50:44,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:50:44,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:50:44,812 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:50:44,812 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 629 places, 1061 transitions, 32483 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:44,812 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:50:44,812 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:50:44,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:50:51,825 INFO L129 PetriNetUnfolder]: 4167/14547 cut-off events. [2021-03-11 02:50:51,826 INFO L130 PetriNetUnfolder]: For 335339/336316 co-relation queries the response was YES. [2021-03-11 02:50:52,018 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78334 conditions, 14547 events. 4167/14547 cut-off events. For 335339/336316 co-relation queries the response was YES. Maximal size of possible extension queue 903. Compared 177405 event pairs, 1859 based on Foata normal form. 196/14398 useless extension candidates. Maximal degree in co-relation 78115. Up to 4964 conditions per place. [2021-03-11 02:50:52,051 INFO L132 encePairwiseOnDemand]: 131/156 looper letters, 793 selfloop transitions, 424 changer transitions 0/1260 dead transitions. [2021-03-11 02:50:52,051 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 650 places, 1260 transitions, 38346 flow [2021-03-11 02:50:52,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-11 02:50:52,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-03-11 02:50:52,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1475 transitions. [2021-03-11 02:50:52,053 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.42977855477855476 [2021-03-11 02:50:52,053 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1475 transitions. [2021-03-11 02:50:52,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1475 transitions. [2021-03-11 02:50:52,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:50:52,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1475 transitions. [2021-03-11 02:50:52,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 67.04545454545455) internal successors, (1475), 22 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:52,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 156.0) internal successors, (3588), 23 states have internal predecessors, (3588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:52,056 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 156.0) internal successors, (3588), 23 states have internal predecessors, (3588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:52,056 INFO L185 Difference]: Start difference. First operand has 629 places, 1061 transitions, 32483 flow. Second operand 22 states and 1475 transitions. [2021-03-11 02:50:52,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 650 places, 1260 transitions, 38346 flow [2021-03-11 02:50:54,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 642 places, 1260 transitions, 37859 flow, removed 116 selfloop flow, removed 8 redundant places. [2021-03-11 02:50:54,507 INFO L241 Difference]: Finished difference. Result has 650 places, 1090 transitions, 34132 flow [2021-03-11 02:50:54,507 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=32004, PETRI_DIFFERENCE_MINUEND_PLACES=621, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1061, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=396, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=645, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=34132, PETRI_PLACES=650, PETRI_TRANSITIONS=1090} [2021-03-11 02:50:54,507 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 508 predicate places. [2021-03-11 02:50:54,508 INFO L480 AbstractCegarLoop]: Abstraction has has 650 places, 1090 transitions, 34132 flow [2021-03-11 02:50:54,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:54,508 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:50:54,508 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:50:54,508 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-11 02:50:54,508 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:50:54,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:50:54,508 INFO L82 PathProgramCache]: Analyzing trace with hash -2128343250, now seen corresponding path program 25 times [2021-03-11 02:50:54,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:50:54,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494722306] [2021-03-11 02:50:54,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:50:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:50:54,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:54,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:50:54,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:54,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:50:54,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:54,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:50:54,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:54,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:50:54,588 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:50:54,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:50:54,595 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:50:54,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:50:54,604 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:50:54,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:50:54,615 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-11 02:50:54,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:50:54,627 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-11 02:50:54,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:50:54,643 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:50:54,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:50:54,658 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:50:54,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:50:54,675 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-11 02:50:54,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 02:50:54,695 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:50:54,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:50:54,707 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 02:50:54,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:50:54,722 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:50:54,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:50:54,734 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:50:54,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:50:54,735 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:50:54,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:50:54,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:54,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:50:54,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:54,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:50:54,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:54,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:50:54,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:50:54,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:50:54,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:50:54,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494722306] [2021-03-11 02:50:54,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:50:54,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:50:54,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102742843] [2021-03-11 02:50:54,805 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:50:54,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:50:54,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:50:54,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:50:54,806 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:50:54,807 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 650 places, 1090 transitions, 34132 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:50:54,807 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:50:54,807 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:50:54,807 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:51:02,034 INFO L129 PetriNetUnfolder]: 4166/14552 cut-off events. [2021-03-11 02:51:02,034 INFO L130 PetriNetUnfolder]: For 354391/355373 co-relation queries the response was YES. [2021-03-11 02:51:02,237 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79135 conditions, 14552 events. 4166/14552 cut-off events. For 354391/355373 co-relation queries the response was YES. Maximal size of possible extension queue 903. Compared 177364 event pairs, 1879 based on Foata normal form. 196/14407 useless extension candidates. Maximal degree in co-relation 78908. Up to 4964 conditions per place. [2021-03-11 02:51:02,271 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 785 selfloop transitions, 428 changer transitions 0/1256 dead transitions. [2021-03-11 02:51:02,271 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 670 places, 1256 transitions, 39449 flow [2021-03-11 02:51:02,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-11 02:51:02,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-03-11 02:51:02,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1398 transitions. [2021-03-11 02:51:02,273 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4267399267399267 [2021-03-11 02:51:02,273 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1398 transitions. [2021-03-11 02:51:02,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1398 transitions. [2021-03-11 02:51:02,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:51:02,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1398 transitions. [2021-03-11 02:51:02,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.57142857142857) internal successors, (1398), 21 states have internal predecessors, (1398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:02,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:02,276 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:02,276 INFO L185 Difference]: Start difference. First operand has 650 places, 1090 transitions, 34132 flow. Second operand 21 states and 1398 transitions. [2021-03-11 02:51:02,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 670 places, 1256 transitions, 39449 flow [2021-03-11 02:51:04,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 657 places, 1256 transitions, 38929 flow, removed 167 selfloop flow, removed 13 redundant places. [2021-03-11 02:51:04,933 INFO L241 Difference]: Finished difference. Result has 664 places, 1109 transitions, 35387 flow [2021-03-11 02:51:04,934 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=33652, PETRI_DIFFERENCE_MINUEND_PLACES=637, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1090, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=409, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=664, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=35387, PETRI_PLACES=664, PETRI_TRANSITIONS=1109} [2021-03-11 02:51:04,934 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 522 predicate places. [2021-03-11 02:51:04,934 INFO L480 AbstractCegarLoop]: Abstraction has has 664 places, 1109 transitions, 35387 flow [2021-03-11 02:51:04,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:04,935 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:51:04,935 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:51:04,935 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-11 02:51:04,935 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:51:04,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:51:04,935 INFO L82 PathProgramCache]: Analyzing trace with hash -578395942, now seen corresponding path program 26 times [2021-03-11 02:51:04,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:51:04,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762684109] [2021-03-11 02:51:04,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:51:04,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:51:05,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:05,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:51:05,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:05,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:51:05,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:05,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:51:05,017 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:51:05,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:51:05,024 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:51:05,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:51:05,032 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:51:05,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:51:05,043 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:51:05,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:51:05,056 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-11 02:51:05,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:51:05,071 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-11 02:51:05,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 02:51:05,095 INFO L142 QuantifierPusher]: treesize reduction 16, result has 71.4 percent of original size [2021-03-11 02:51:05,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 02:51:05,117 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.9 percent of original size [2021-03-11 02:51:05,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 02:51:05,134 INFO L142 QuantifierPusher]: treesize reduction 9, result has 66.7 percent of original size [2021-03-11 02:51:05,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 02:51:05,148 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:51:05,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:51:05,158 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:51:05,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:51:05,159 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:51:05,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:51:05,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:05,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:51:05,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:05,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:51:05,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:05,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:51:05,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:05,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:51:05,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:51:05,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762684109] [2021-03-11 02:51:05,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:51:05,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:51:05,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706244641] [2021-03-11 02:51:05,196 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:51:05,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:51:05,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:51:05,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:51:05,197 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:51:05,198 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 664 places, 1109 transitions, 35387 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:05,198 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:51:05,198 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:51:05,198 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:51:12,479 INFO L129 PetriNetUnfolder]: 4178/14669 cut-off events. [2021-03-11 02:51:12,480 INFO L130 PetriNetUnfolder]: For 372503/373327 co-relation queries the response was YES. [2021-03-11 02:51:12,793 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80361 conditions, 14669 events. 4178/14669 cut-off events. For 372503/373327 co-relation queries the response was YES. Maximal size of possible extension queue 919. Compared 179873 event pairs, 1641 based on Foata normal form. 198/14543 useless extension candidates. Maximal degree in co-relation 80133. Up to 4520 conditions per place. [2021-03-11 02:51:12,827 INFO L132 encePairwiseOnDemand]: 130/156 looper letters, 845 selfloop transitions, 384 changer transitions 0/1272 dead transitions. [2021-03-11 02:51:12,828 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 682 places, 1272 transitions, 40798 flow [2021-03-11 02:51:12,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-11 02:51:12,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-11 02:51:12,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1274 transitions. [2021-03-11 02:51:12,829 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4298245614035088 [2021-03-11 02:51:12,829 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1274 transitions. [2021-03-11 02:51:12,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1274 transitions. [2021-03-11 02:51:12,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:51:12,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1274 transitions. [2021-03-11 02:51:12,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 67.05263157894737) internal successors, (1274), 19 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:12,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:12,832 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:12,832 INFO L185 Difference]: Start difference. First operand has 664 places, 1109 transitions, 35387 flow. Second operand 19 states and 1274 transitions. [2021-03-11 02:51:12,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 682 places, 1272 transitions, 40798 flow [2021-03-11 02:51:15,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 674 places, 1272 transitions, 40359 flow, removed 118 selfloop flow, removed 8 redundant places. [2021-03-11 02:51:15,596 INFO L241 Difference]: Finished difference. Result has 684 places, 1148 transitions, 37557 flow [2021-03-11 02:51:15,597 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=34954, PETRI_DIFFERENCE_MINUEND_PLACES=656, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=345, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=729, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=37557, PETRI_PLACES=684, PETRI_TRANSITIONS=1148} [2021-03-11 02:51:15,597 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 542 predicate places. [2021-03-11 02:51:15,597 INFO L480 AbstractCegarLoop]: Abstraction has has 684 places, 1148 transitions, 37557 flow [2021-03-11 02:51:15,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:15,597 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:51:15,598 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:51:15,598 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-11 02:51:15,598 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:51:15,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:51:15,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1146482502, now seen corresponding path program 27 times [2021-03-11 02:51:15,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:51:15,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309542278] [2021-03-11 02:51:15,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:51:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:51:15,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:15,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:51:15,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:15,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:51:15,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:15,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:51:15,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:15,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:51:15,674 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:51:15,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:51:15,681 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:51:15,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:51:15,689 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:51:15,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:51:15,701 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-11 02:51:15,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:51:15,715 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-11 02:51:15,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:51:15,733 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-11 02:51:15,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 02:51:15,749 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:51:15,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:51:15,764 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:51:15,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:51:15,783 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-11 02:51:15,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 02:51:15,849 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:51:15,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:51:15,862 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:51:15,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:51:15,862 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:51:15,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:51:15,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:15,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:51:15,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:15,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:51:15,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:15,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:51:15,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:15,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:51:15,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:51:15,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309542278] [2021-03-11 02:51:15,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:51:15,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:51:15,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395459670] [2021-03-11 02:51:15,903 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:51:15,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:51:15,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:51:15,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:51:15,904 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:51:15,904 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 684 places, 1148 transitions, 37557 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:15,905 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:51:15,905 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:51:15,905 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:51:23,447 INFO L129 PetriNetUnfolder]: 4175/14677 cut-off events. [2021-03-11 02:51:23,447 INFO L130 PetriNetUnfolder]: For 407696/408521 co-relation queries the response was YES. [2021-03-11 02:51:23,643 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82871 conditions, 14677 events. 4175/14677 cut-off events. For 407696/408521 co-relation queries the response was YES. Maximal size of possible extension queue 919. Compared 179958 event pairs, 1629 based on Foata normal form. 219/14577 useless extension candidates. Maximal degree in co-relation 82634. Up to 6883 conditions per place. [2021-03-11 02:51:23,675 INFO L132 encePairwiseOnDemand]: 130/156 looper letters, 817 selfloop transitions, 433 changer transitions 0/1293 dead transitions. [2021-03-11 02:51:23,675 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 703 places, 1293 transitions, 42914 flow [2021-03-11 02:51:23,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-11 02:51:23,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-11 02:51:23,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1336 transitions. [2021-03-11 02:51:23,677 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4282051282051282 [2021-03-11 02:51:23,677 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1336 transitions. [2021-03-11 02:51:23,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1336 transitions. [2021-03-11 02:51:23,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:51:23,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1336 transitions. [2021-03-11 02:51:23,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 66.8) internal successors, (1336), 20 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:23,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:23,679 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:23,679 INFO L185 Difference]: Start difference. First operand has 684 places, 1148 transitions, 37557 flow. Second operand 20 states and 1336 transitions. [2021-03-11 02:51:23,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 703 places, 1293 transitions, 42914 flow [2021-03-11 02:51:26,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 696 places, 1293 transitions, 42143 flow, removed 274 selfloop flow, removed 7 redundant places. [2021-03-11 02:51:26,717 INFO L241 Difference]: Finished difference. Result has 704 places, 1179 transitions, 39546 flow [2021-03-11 02:51:26,717 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=36795, PETRI_DIFFERENCE_MINUEND_PLACES=677, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=402, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=721, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=39546, PETRI_PLACES=704, PETRI_TRANSITIONS=1179} [2021-03-11 02:51:26,718 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 562 predicate places. [2021-03-11 02:51:26,718 INFO L480 AbstractCegarLoop]: Abstraction has has 704 places, 1179 transitions, 39546 flow [2021-03-11 02:51:26,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:26,718 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:51:26,718 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:51:26,718 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-11 02:51:26,718 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:51:26,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:51:26,718 INFO L82 PathProgramCache]: Analyzing trace with hash -402959332, now seen corresponding path program 28 times [2021-03-11 02:51:26,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:51:26,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350006686] [2021-03-11 02:51:26,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:51:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:51:26,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:26,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:51:26,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:26,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:51:26,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:26,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:51:26,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:26,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:51:26,794 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:51:26,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:51:26,801 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:51:26,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:51:26,809 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:51:26,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:51:26,820 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-11 02:51:26,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:51:26,832 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-11 02:51:26,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:51:26,850 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:51:26,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:51:26,864 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:51:26,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:51:26,881 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:51:26,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:51:26,900 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-11 02:51:26,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 02:51:26,914 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:51:26,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:51:26,926 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:51:26,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:51:26,927 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:51:26,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:51:26,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:26,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:51:26,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:26,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:51:26,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:26,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:51:26,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:26,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:51:26,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:51:26,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350006686] [2021-03-11 02:51:26,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:51:26,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:51:26,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663867537] [2021-03-11 02:51:26,967 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:51:26,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:51:26,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:51:26,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:51:26,968 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:51:26,969 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 704 places, 1179 transitions, 39546 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:26,969 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:51:26,969 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:51:26,969 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:51:34,931 INFO L129 PetriNetUnfolder]: 4172/14752 cut-off events. [2021-03-11 02:51:34,932 INFO L130 PetriNetUnfolder]: For 440104/440959 co-relation queries the response was YES. [2021-03-11 02:51:35,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84038 conditions, 14752 events. 4172/14752 cut-off events. For 440104/440959 co-relation queries the response was YES. Maximal size of possible extension queue 915. Compared 180317 event pairs, 1877 based on Foata normal form. 226/14644 useless extension candidates. Maximal degree in co-relation 83794. Up to 6883 conditions per place. [2021-03-11 02:51:35,261 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 852 selfloop transitions, 418 changer transitions 0/1313 dead transitions. [2021-03-11 02:51:35,261 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 724 places, 1313 transitions, 44648 flow [2021-03-11 02:51:35,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-11 02:51:35,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-03-11 02:51:35,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1398 transitions. [2021-03-11 02:51:35,262 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4267399267399267 [2021-03-11 02:51:35,262 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1398 transitions. [2021-03-11 02:51:35,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1398 transitions. [2021-03-11 02:51:35,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:51:35,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1398 transitions. [2021-03-11 02:51:35,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.57142857142857) internal successors, (1398), 21 states have internal predecessors, (1398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:35,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:35,265 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:35,265 INFO L185 Difference]: Start difference. First operand has 704 places, 1179 transitions, 39546 flow. Second operand 21 states and 1398 transitions. [2021-03-11 02:51:35,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 724 places, 1313 transitions, 44648 flow [2021-03-11 02:51:38,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 716 places, 1313 transitions, 43971 flow, removed 255 selfloop flow, removed 8 redundant places. [2021-03-11 02:51:38,607 INFO L241 Difference]: Finished difference. Result has 724 places, 1208 transitions, 41395 flow [2021-03-11 02:51:38,608 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=38901, PETRI_DIFFERENCE_MINUEND_PLACES=696, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=389, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=767, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=41395, PETRI_PLACES=724, PETRI_TRANSITIONS=1208} [2021-03-11 02:51:38,608 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 582 predicate places. [2021-03-11 02:51:38,608 INFO L480 AbstractCegarLoop]: Abstraction has has 724 places, 1208 transitions, 41395 flow [2021-03-11 02:51:38,608 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:38,608 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:51:38,608 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:51:38,608 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-03-11 02:51:38,608 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:51:38,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:51:38,609 INFO L82 PathProgramCache]: Analyzing trace with hash 20900058, now seen corresponding path program 29 times [2021-03-11 02:51:38,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:51:38,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41500618] [2021-03-11 02:51:38,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:51:38,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:51:38,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:38,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:51:38,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:38,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:51:38,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:38,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:51:38,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:38,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:51:38,698 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:51:38,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:51:38,706 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:51:38,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:51:38,715 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:51:38,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:51:38,727 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-11 02:51:38,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:51:38,742 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:51:38,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:51:38,755 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:51:38,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:51:38,769 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:51:38,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:51:38,783 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:51:38,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:51:38,801 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-11 02:51:38,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 02:51:38,817 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:51:38,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:51:38,829 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:51:38,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:51:38,831 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:51:38,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:51:38,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:38,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:51:38,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:38,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:51:38,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:38,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:51:38,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:38,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:51:38,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:51:38,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41500618] [2021-03-11 02:51:38,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:51:38,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:51:38,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576997168] [2021-03-11 02:51:38,873 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:51:38,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:51:38,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:51:38,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:51:38,874 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:51:38,875 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 724 places, 1208 transitions, 41395 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:38,875 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:51:38,875 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:51:38,875 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:51:46,715 INFO L129 PetriNetUnfolder]: 4172/14700 cut-off events. [2021-03-11 02:51:46,715 INFO L130 PetriNetUnfolder]: For 444754/445599 co-relation queries the response was YES. [2021-03-11 02:51:46,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84336 conditions, 14700 events. 4172/14700 cut-off events. For 444754/445599 co-relation queries the response was YES. Maximal size of possible extension queue 919. Compared 180086 event pairs, 1596 based on Foata normal form. 197/14557 useless extension candidates. Maximal degree in co-relation 84084. Up to 5081 conditions per place. [2021-03-11 02:51:46,992 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 829 selfloop transitions, 470 changer transitions 0/1342 dead transitions. [2021-03-11 02:51:46,992 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 744 places, 1342 transitions, 46347 flow [2021-03-11 02:51:46,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-11 02:51:46,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-03-11 02:51:46,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1393 transitions. [2021-03-11 02:51:46,994 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4252136752136752 [2021-03-11 02:51:46,994 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1393 transitions. [2021-03-11 02:51:46,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1393 transitions. [2021-03-11 02:51:46,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:51:46,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1393 transitions. [2021-03-11 02:51:46,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.33333333333333) internal successors, (1393), 21 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:46,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:46,996 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:46,996 INFO L185 Difference]: Start difference. First operand has 724 places, 1208 transitions, 41395 flow. Second operand 21 states and 1393 transitions. [2021-03-11 02:51:46,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 744 places, 1342 transitions, 46347 flow [2021-03-11 02:51:50,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 734 places, 1342 transitions, 44967 flow, removed 197 selfloop flow, removed 10 redundant places. [2021-03-11 02:51:50,808 INFO L241 Difference]: Finished difference. Result has 742 places, 1226 transitions, 41642 flow [2021-03-11 02:51:50,810 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=40016, PETRI_DIFFERENCE_MINUEND_PLACES=714, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=452, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=738, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=41642, PETRI_PLACES=742, PETRI_TRANSITIONS=1226} [2021-03-11 02:51:50,810 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 600 predicate places. [2021-03-11 02:51:50,810 INFO L480 AbstractCegarLoop]: Abstraction has has 742 places, 1226 transitions, 41642 flow [2021-03-11 02:51:50,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:50,810 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:51:50,810 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:51:50,810 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-03-11 02:51:50,810 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:51:50,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:51:50,811 INFO L82 PathProgramCache]: Analyzing trace with hash 986854704, now seen corresponding path program 30 times [2021-03-11 02:51:50,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:51:50,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172569797] [2021-03-11 02:51:50,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:51:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:51:50,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:50,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:51:50,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:50,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:51:50,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:50,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:51:50,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:50,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:51:50,887 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:51:50,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:51:50,894 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:51:50,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:51:50,903 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:51:50,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:51:50,915 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:51:50,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:51:50,927 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-11 02:51:50,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:51:50,940 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-11 02:51:50,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 02:51:50,959 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:51:50,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:51:50,975 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-11 02:51:50,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 02:51:50,993 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:51:50,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:51:51,003 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 02:51:51,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:51:51,016 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:51:51,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:51:51,028 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:51:51,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:51:51,028 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:51:51,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:51:51,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:51,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:51:51,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:51,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:51:51,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:51,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:51:51,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:51:51,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:51:51,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:51:51,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172569797] [2021-03-11 02:51:51,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:51:51,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:51:51,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288933703] [2021-03-11 02:51:51,065 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:51:51,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:51:51,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:51:51,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:51:51,066 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:51:51,067 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 742 places, 1226 transitions, 41642 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:51,067 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:51:51,067 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:51:51,067 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:51:59,302 INFO L129 PetriNetUnfolder]: 4169/14764 cut-off events. [2021-03-11 02:51:59,302 INFO L130 PetriNetUnfolder]: For 456125/456960 co-relation queries the response was YES. [2021-03-11 02:51:59,529 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85293 conditions, 14764 events. 4169/14764 cut-off events. For 456125/456960 co-relation queries the response was YES. Maximal size of possible extension queue 919. Compared 181367 event pairs, 1693 based on Foata normal form. 202/14641 useless extension candidates. Maximal degree in co-relation 85033. Up to 4520 conditions per place. [2021-03-11 02:51:59,564 INFO L132 encePairwiseOnDemand]: 130/156 looper letters, 948 selfloop transitions, 422 changer transitions 0/1413 dead transitions. [2021-03-11 02:51:59,564 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 761 places, 1413 transitions, 47846 flow [2021-03-11 02:51:59,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-11 02:51:59,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-11 02:51:59,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1345 transitions. [2021-03-11 02:51:59,565 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4310897435897436 [2021-03-11 02:51:59,565 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1345 transitions. [2021-03-11 02:51:59,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1345 transitions. [2021-03-11 02:51:59,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:51:59,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1345 transitions. [2021-03-11 02:51:59,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 67.25) internal successors, (1345), 20 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:59,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:59,568 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:51:59,568 INFO L185 Difference]: Start difference. First operand has 742 places, 1226 transitions, 41642 flow. Second operand 20 states and 1345 transitions. [2021-03-11 02:51:59,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 761 places, 1413 transitions, 47846 flow [2021-03-11 02:52:03,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 753 places, 1413 transitions, 47143 flow, removed 174 selfloop flow, removed 8 redundant places. [2021-03-11 02:52:03,400 INFO L241 Difference]: Finished difference. Result has 761 places, 1256 transitions, 43716 flow [2021-03-11 02:52:03,401 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=40939, PETRI_DIFFERENCE_MINUEND_PLACES=734, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=392, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=810, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=43716, PETRI_PLACES=761, PETRI_TRANSITIONS=1256} [2021-03-11 02:52:03,401 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 619 predicate places. [2021-03-11 02:52:03,401 INFO L480 AbstractCegarLoop]: Abstraction has has 761 places, 1256 transitions, 43716 flow [2021-03-11 02:52:03,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:52:03,401 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:52:03,401 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:52:03,401 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-03-11 02:52:03,402 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:52:03,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:52:03,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1134206396, now seen corresponding path program 31 times [2021-03-11 02:52:03,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:52:03,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8324956] [2021-03-11 02:52:03,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:52:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:52:03,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:03,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:52:03,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:03,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:52:03,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:03,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:52:03,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:03,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:52:03,476 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:52:03,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:52:03,483 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:52:03,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:52:03,491 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:52:03,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:52:03,503 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:52:03,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:52:03,515 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-11 02:52:03,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:52:03,529 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:52:03,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:52:03,541 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:52:03,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:52:03,554 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:52:03,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:52:03,572 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-11 02:52:03,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 02:52:03,587 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:52:03,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:52:03,599 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:52:03,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:52:03,600 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:52:03,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:52:03,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:03,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:52:03,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:03,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:52:03,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:03,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:52:03,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:03,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:52:03,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:52:03,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8324956] [2021-03-11 02:52:03,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:52:03,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:52:03,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571707915] [2021-03-11 02:52:03,639 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:52:03,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:52:03,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:52:03,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:52:03,640 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:52:03,641 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 761 places, 1256 transitions, 43716 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:52:03,641 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:52:03,641 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:52:03,641 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:52:12,322 INFO L129 PetriNetUnfolder]: 4169/14763 cut-off events. [2021-03-11 02:52:12,323 INFO L130 PetriNetUnfolder]: For 476287/477124 co-relation queries the response was YES. [2021-03-11 02:52:12,648 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86074 conditions, 14763 events. 4169/14763 cut-off events. For 476287/477124 co-relation queries the response was YES. Maximal size of possible extension queue 914. Compared 181272 event pairs, 1814 based on Foata normal form. 185/14609 useless extension candidates. Maximal degree in co-relation 85807. Up to 4520 conditions per place. [2021-03-11 02:52:12,683 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 967 selfloop transitions, 407 changer transitions 0/1417 dead transitions. [2021-03-11 02:52:12,683 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 781 places, 1417 transitions, 49242 flow [2021-03-11 02:52:12,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-11 02:52:12,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-03-11 02:52:12,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1403 transitions. [2021-03-11 02:52:12,684 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.42826617826617824 [2021-03-11 02:52:12,684 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1403 transitions. [2021-03-11 02:52:12,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1403 transitions. [2021-03-11 02:52:12,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:52:12,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1403 transitions. [2021-03-11 02:52:12,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.80952380952381) internal successors, (1403), 21 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:52:12,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:52:12,688 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:52:12,688 INFO L185 Difference]: Start difference. First operand has 761 places, 1256 transitions, 43716 flow. Second operand 21 states and 1403 transitions. [2021-03-11 02:52:12,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 781 places, 1417 transitions, 49242 flow [2021-03-11 02:52:16,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 774 places, 1417 transitions, 48676 flow, removed 251 selfloop flow, removed 7 redundant places. [2021-03-11 02:52:16,888 INFO L241 Difference]: Finished difference. Result has 781 places, 1273 transitions, 44671 flow [2021-03-11 02:52:16,888 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=43177, PETRI_DIFFERENCE_MINUEND_PLACES=754, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=390, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=849, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=44671, PETRI_PLACES=781, PETRI_TRANSITIONS=1273} [2021-03-11 02:52:16,889 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 639 predicate places. [2021-03-11 02:52:16,889 INFO L480 AbstractCegarLoop]: Abstraction has has 781 places, 1273 transitions, 44671 flow [2021-03-11 02:52:16,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:52:16,889 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:52:16,889 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:52:16,889 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-03-11 02:52:16,889 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:52:16,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:52:16,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1512559178, now seen corresponding path program 32 times [2021-03-11 02:52:16,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:52:16,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866240454] [2021-03-11 02:52:16,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:52:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:52:16,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:16,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:52:16,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:16,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:52:16,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:16,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:52:16,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:16,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:52:16,964 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:52:16,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:52:16,971 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:52:16,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:52:16,984 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:52:16,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:52:16,996 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:52:16,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:52:17,010 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-11 02:52:17,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:52:17,026 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-11 02:52:17,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 02:52:17,045 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:52:17,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:52:17,061 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-11 02:52:17,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 02:52:17,079 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:52:17,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:52:17,089 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 02:52:17,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:52:17,104 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:52:17,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:52:17,116 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:52:17,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:52:17,117 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:52:17,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:52:17,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:17,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:52:17,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:17,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:52:17,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:17,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:52:17,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:17,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:52:17,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:52:17,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866240454] [2021-03-11 02:52:17,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:52:17,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:52:17,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789427870] [2021-03-11 02:52:17,159 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:52:17,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:52:17,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:52:17,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:52:17,160 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:52:17,161 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 781 places, 1273 transitions, 44671 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:52:17,161 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:52:17,161 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:52:17,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:52:25,967 INFO L129 PetriNetUnfolder]: 4169/14764 cut-off events. [2021-03-11 02:52:25,967 INFO L130 PetriNetUnfolder]: For 487163/487998 co-relation queries the response was YES. [2021-03-11 02:52:26,219 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86485 conditions, 14764 events. 4169/14764 cut-off events. For 487163/487998 co-relation queries the response was YES. Maximal size of possible extension queue 918. Compared 181456 event pairs, 1634 based on Foata normal form. 214/14661 useless extension candidates. Maximal degree in co-relation 86210. Up to 4520 conditions per place. [2021-03-11 02:52:26,255 INFO L132 encePairwiseOnDemand]: 130/156 looper letters, 945 selfloop transitions, 427 changer transitions 0/1415 dead transitions. [2021-03-11 02:52:26,256 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 800 places, 1415 transitions, 49537 flow [2021-03-11 02:52:26,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-11 02:52:26,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-11 02:52:26,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1340 transitions. [2021-03-11 02:52:26,257 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.42948717948717946 [2021-03-11 02:52:26,257 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1340 transitions. [2021-03-11 02:52:26,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1340 transitions. [2021-03-11 02:52:26,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:52:26,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1340 transitions. [2021-03-11 02:52:26,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 67.0) internal successors, (1340), 20 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:52:26,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:52:26,260 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:52:26,260 INFO L185 Difference]: Start difference. First operand has 781 places, 1273 transitions, 44671 flow. Second operand 20 states and 1340 transitions. [2021-03-11 02:52:26,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 800 places, 1415 transitions, 49537 flow [2021-03-11 02:52:30,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 784 places, 1415 transitions, 48646 flow, removed 243 selfloop flow, removed 16 redundant places. [2021-03-11 02:52:30,429 INFO L241 Difference]: Finished difference. Result has 789 places, 1285 transitions, 45232 flow [2021-03-11 02:52:30,430 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=43780, PETRI_DIFFERENCE_MINUEND_PLACES=765, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=415, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=846, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=45232, PETRI_PLACES=789, PETRI_TRANSITIONS=1285} [2021-03-11 02:52:30,430 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 647 predicate places. [2021-03-11 02:52:30,430 INFO L480 AbstractCegarLoop]: Abstraction has has 789 places, 1285 transitions, 45232 flow [2021-03-11 02:52:30,431 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:52:30,431 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:52:30,431 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:52:30,431 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-03-11 02:52:30,431 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:52:30,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:52:30,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1663230880, now seen corresponding path program 33 times [2021-03-11 02:52:30,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:52:30,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978245241] [2021-03-11 02:52:30,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:52:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:52:30,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:30,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:52:30,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:30,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:52:30,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:30,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:52:30,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:30,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:52:30,506 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:52:30,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:52:30,514 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:52:30,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:52:30,522 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:52:30,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:52:30,534 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:52:30,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:52:30,548 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-11 02:52:30,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:52:30,562 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:52:30,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:52:30,575 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:52:30,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:52:30,589 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:52:30,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:52:30,606 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-11 02:52:30,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 02:52:30,621 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:52:30,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:52:30,633 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:52:30,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:52:30,634 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:52:30,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:52:30,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:30,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:52:30,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:30,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:52:30,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:30,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:52:30,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:30,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:52:30,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:52:30,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978245241] [2021-03-11 02:52:30,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:52:30,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:52:30,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998434384] [2021-03-11 02:52:30,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:52:30,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:52:30,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:52:30,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:52:30,675 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:52:30,675 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 789 places, 1285 transitions, 45232 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:52:30,676 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:52:30,676 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:52:30,676 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:52:39,231 INFO L129 PetriNetUnfolder]: 4169/14753 cut-off events. [2021-03-11 02:52:39,231 INFO L130 PetriNetUnfolder]: For 489571/490417 co-relation queries the response was YES. [2021-03-11 02:52:39,473 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86745 conditions, 14753 events. 4169/14753 cut-off events. For 489571/490417 co-relation queries the response was YES. Maximal size of possible extension queue 914. Compared 181104 event pairs, 1730 based on Foata normal form. 200/14624 useless extension candidates. Maximal degree in co-relation 86473. Up to 4520 conditions per place. [2021-03-11 02:52:39,508 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 937 selfloop transitions, 421 changer transitions 0/1401 dead transitions. [2021-03-11 02:52:39,508 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 809 places, 1401 transitions, 49612 flow [2021-03-11 02:52:39,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-11 02:52:39,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-03-11 02:52:39,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1397 transitions. [2021-03-11 02:52:39,510 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4264346764346764 [2021-03-11 02:52:39,510 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1397 transitions. [2021-03-11 02:52:39,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1397 transitions. [2021-03-11 02:52:39,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:52:39,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1397 transitions. [2021-03-11 02:52:39,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.52380952380952) internal successors, (1397), 21 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:52:39,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:52:39,513 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:52:39,513 INFO L185 Difference]: Start difference. First operand has 789 places, 1285 transitions, 45232 flow. Second operand 21 states and 1397 transitions. [2021-03-11 02:52:39,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 809 places, 1401 transitions, 49612 flow [2021-03-11 02:52:43,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 799 places, 1401 transitions, 48981 flow, removed 239 selfloop flow, removed 10 redundant places. [2021-03-11 02:52:43,445 INFO L241 Difference]: Finished difference. Result has 806 places, 1297 transitions, 45990 flow [2021-03-11 02:52:43,446 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=44610, PETRI_DIFFERENCE_MINUEND_PLACES=779, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=409, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=864, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=45990, PETRI_PLACES=806, PETRI_TRANSITIONS=1297} [2021-03-11 02:52:43,446 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 664 predicate places. [2021-03-11 02:52:43,446 INFO L480 AbstractCegarLoop]: Abstraction has has 806 places, 1297 transitions, 45990 flow [2021-03-11 02:52:43,446 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:52:43,446 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:52:43,446 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:52:43,446 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-03-11 02:52:43,446 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:52:43,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:52:43,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1420278220, now seen corresponding path program 34 times [2021-03-11 02:52:43,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:52:43,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022887038] [2021-03-11 02:52:43,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:52:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:52:43,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:43,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:52:43,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:43,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:52:43,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:43,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:52:43,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:43,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:52:43,521 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:52:43,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:52:43,528 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:52:43,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:52:43,536 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:52:43,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:52:43,548 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:52:43,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:52:43,560 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-11 02:52:43,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:52:43,573 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:52:43,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:52:43,588 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:52:43,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:52:43,604 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:52:43,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:52:43,622 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-11 02:52:43,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 02:52:43,637 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:52:43,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:52:43,650 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:52:43,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:52:43,650 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:52:43,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:52:43,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:43,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:52:43,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:43,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:52:43,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:43,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:52:43,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:43,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:52:43,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:52:43,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022887038] [2021-03-11 02:52:43,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:52:43,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:52:43,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574737010] [2021-03-11 02:52:43,692 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:52:43,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:52:43,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:52:43,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:52:43,693 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:52:43,693 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 806 places, 1297 transitions, 45990 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:52:43,693 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:52:43,693 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:52:43,693 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:52:52,471 INFO L129 PetriNetUnfolder]: 4166/14813 cut-off events. [2021-03-11 02:52:52,471 INFO L130 PetriNetUnfolder]: For 511168/511981 co-relation queries the response was YES. [2021-03-11 02:52:52,730 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87785 conditions, 14813 events. 4166/14813 cut-off events. For 511168/511981 co-relation queries the response was YES. Maximal size of possible extension queue 913. Compared 182038 event pairs, 1887 based on Foata normal form. 161/14627 useless extension candidates. Maximal degree in co-relation 87507. Up to 4520 conditions per place. [2021-03-11 02:52:52,768 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 988 selfloop transitions, 435 changer transitions 0/1466 dead transitions. [2021-03-11 02:52:52,768 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 826 places, 1466 transitions, 52397 flow [2021-03-11 02:52:52,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-11 02:52:52,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-03-11 02:52:52,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1402 transitions. [2021-03-11 02:52:52,770 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.42796092796092794 [2021-03-11 02:52:52,770 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1402 transitions. [2021-03-11 02:52:52,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1402 transitions. [2021-03-11 02:52:52,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:52:52,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1402 transitions. [2021-03-11 02:52:52,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.76190476190476) internal successors, (1402), 21 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:52:52,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:52:52,773 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:52:52,773 INFO L185 Difference]: Start difference. First operand has 806 places, 1297 transitions, 45990 flow. Second operand 21 states and 1402 transitions. [2021-03-11 02:52:52,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 826 places, 1466 transitions, 52397 flow [2021-03-11 02:52:57,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 813 places, 1466 transitions, 51412 flow, removed 230 selfloop flow, removed 13 redundant places. [2021-03-11 02:52:57,054 INFO L241 Difference]: Finished difference. Result has 820 places, 1326 transitions, 47449 flow [2021-03-11 02:52:57,054 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=45014, PETRI_DIFFERENCE_MINUEND_PLACES=793, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=406, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=871, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=47449, PETRI_PLACES=820, PETRI_TRANSITIONS=1326} [2021-03-11 02:52:57,055 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 678 predicate places. [2021-03-11 02:52:57,055 INFO L480 AbstractCegarLoop]: Abstraction has has 820 places, 1326 transitions, 47449 flow [2021-03-11 02:52:57,055 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:52:57,055 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:52:57,055 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:52:57,055 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-03-11 02:52:57,055 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:52:57,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:52:57,055 INFO L82 PathProgramCache]: Analyzing trace with hash -165248480, now seen corresponding path program 35 times [2021-03-11 02:52:57,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:52:57,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404702630] [2021-03-11 02:52:57,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:52:57,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:52:57,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:57,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:52:57,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:57,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:52:57,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:57,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:52:57,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:57,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:52:57,129 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:52:57,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:52:57,136 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:52:57,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:52:57,144 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:52:57,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:52:57,156 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:52:57,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:52:57,170 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-11 02:52:57,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:52:57,182 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:52:57,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:52:57,195 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:52:57,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:52:57,209 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:52:57,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:52:57,227 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-11 02:52:57,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 02:52:57,242 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:52:57,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:52:57,255 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:52:57,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:52:57,255 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:52:57,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:52:57,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:57,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:52:57,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:57,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:52:57,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:57,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:52:57,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:52:57,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:52:57,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:52:57,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404702630] [2021-03-11 02:52:57,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:52:57,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:52:57,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132693951] [2021-03-11 02:52:57,297 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:52:57,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:52:57,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:52:57,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:52:57,298 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:52:57,298 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 820 places, 1326 transitions, 47449 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:52:57,298 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:52:57,298 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:52:57,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:53:06,230 INFO L129 PetriNetUnfolder]: 4166/14807 cut-off events. [2021-03-11 02:53:06,231 INFO L130 PetriNetUnfolder]: For 523798/524623 co-relation queries the response was YES. [2021-03-11 02:53:06,565 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87889 conditions, 14807 events. 4166/14807 cut-off events. For 523798/524623 co-relation queries the response was YES. Maximal size of possible extension queue 913. Compared 181802 event pairs, 1829 based on Foata normal form. 170/14637 useless extension candidates. Maximal degree in co-relation 87608. Up to 4520 conditions per place. [2021-03-11 02:53:06,601 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 986 selfloop transitions, 436 changer transitions 0/1465 dead transitions. [2021-03-11 02:53:06,602 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 840 places, 1465 transitions, 52437 flow [2021-03-11 02:53:06,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-11 02:53:06,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-03-11 02:53:06,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1401 transitions. [2021-03-11 02:53:06,603 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.42765567765567764 [2021-03-11 02:53:06,603 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1401 transitions. [2021-03-11 02:53:06,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1401 transitions. [2021-03-11 02:53:06,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:53:06,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1401 transitions. [2021-03-11 02:53:06,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.71428571428571) internal successors, (1401), 21 states have internal predecessors, (1401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:53:06,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:53:06,606 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:53:06,606 INFO L185 Difference]: Start difference. First operand has 820 places, 1326 transitions, 47449 flow. Second operand 21 states and 1401 transitions. [2021-03-11 02:53:06,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 840 places, 1465 transitions, 52437 flow [2021-03-11 02:53:10,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 830 places, 1465 transitions, 51455 flow, removed 211 selfloop flow, removed 10 redundant places. [2021-03-11 02:53:11,003 INFO L241 Difference]: Finished difference. Result has 836 places, 1337 transitions, 47852 flow [2021-03-11 02:53:11,004 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=46467, PETRI_DIFFERENCE_MINUEND_PLACES=810, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=425, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=890, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=47852, PETRI_PLACES=836, PETRI_TRANSITIONS=1337} [2021-03-11 02:53:11,004 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 694 predicate places. [2021-03-11 02:53:11,004 INFO L480 AbstractCegarLoop]: Abstraction has has 836 places, 1337 transitions, 47852 flow [2021-03-11 02:53:11,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:53:11,005 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:53:11,005 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:53:11,005 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-03-11 02:53:11,005 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:53:11,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:53:11,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1679367658, now seen corresponding path program 36 times [2021-03-11 02:53:11,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:53:11,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803870308] [2021-03-11 02:53:11,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:53:11,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:53:11,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:11,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:53:11,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:11,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:53:11,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:11,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:53:11,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:11,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:53:11,081 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:53:11,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:53:11,089 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:53:11,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:53:11,098 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:53:11,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:53:11,110 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-11 02:53:11,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:53:11,122 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:53:11,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:53:11,136 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:53:11,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:53:11,152 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:53:11,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:53:11,169 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:53:11,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:53:11,190 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-11 02:53:11,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 02:53:11,206 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:53:11,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:53:11,220 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:53:11,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:53:11,221 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:53:11,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:53:11,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:11,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:53:11,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:11,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:53:11,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:11,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:53:11,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:11,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:53:11,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:53:11,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803870308] [2021-03-11 02:53:11,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:53:11,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:53:11,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337841380] [2021-03-11 02:53:11,268 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:53:11,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:53:11,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:53:11,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:53:11,269 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:53:11,269 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 836 places, 1337 transitions, 47852 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:53:11,269 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:53:11,269 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:53:11,269 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:53:19,757 INFO L129 PetriNetUnfolder]: 4163/14824 cut-off events. [2021-03-11 02:53:19,757 INFO L130 PetriNetUnfolder]: For 533530/534406 co-relation queries the response was YES. [2021-03-11 02:53:20,001 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88534 conditions, 14824 events. 4163/14824 cut-off events. For 533530/534406 co-relation queries the response was YES. Maximal size of possible extension queue 914. Compared 181910 event pairs, 1679 based on Foata normal form. 179/14665 useless extension candidates. Maximal degree in co-relation 88249. Up to 3808 conditions per place. [2021-03-11 02:53:20,039 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 966 selfloop transitions, 507 changer transitions 0/1516 dead transitions. [2021-03-11 02:53:20,039 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 856 places, 1516 transitions, 54554 flow [2021-03-11 02:53:20,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-11 02:53:20,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-03-11 02:53:20,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1397 transitions. [2021-03-11 02:53:20,041 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4264346764346764 [2021-03-11 02:53:20,041 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1397 transitions. [2021-03-11 02:53:20,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1397 transitions. [2021-03-11 02:53:20,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:53:20,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1397 transitions. [2021-03-11 02:53:20,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.52380952380952) internal successors, (1397), 21 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:53:20,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:53:20,044 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:53:20,044 INFO L185 Difference]: Start difference. First operand has 836 places, 1337 transitions, 47852 flow. Second operand 21 states and 1397 transitions. [2021-03-11 02:53:20,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 856 places, 1516 transitions, 54554 flow [2021-03-11 02:53:24,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 847 places, 1516 transitions, 53607 flow, removed 222 selfloop flow, removed 9 redundant places. [2021-03-11 02:53:24,324 INFO L241 Difference]: Finished difference. Result has 856 places, 1367 transitions, 49546 flow [2021-03-11 02:53:24,325 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=46925, PETRI_DIFFERENCE_MINUEND_PLACES=827, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=477, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=839, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=49546, PETRI_PLACES=856, PETRI_TRANSITIONS=1367} [2021-03-11 02:53:24,325 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 714 predicate places. [2021-03-11 02:53:24,325 INFO L480 AbstractCegarLoop]: Abstraction has has 856 places, 1367 transitions, 49546 flow [2021-03-11 02:53:24,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:53:24,325 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:53:24,325 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:53:24,326 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-03-11 02:53:24,326 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:53:24,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:53:24,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1868680228, now seen corresponding path program 37 times [2021-03-11 02:53:24,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:53:24,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073941130] [2021-03-11 02:53:24,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:53:24,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:53:24,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:24,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:53:24,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:24,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:53:24,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:24,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:53:24,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:24,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:53:24,398 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:53:24,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:53:24,405 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:53:24,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:53:24,413 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:53:24,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:53:24,425 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-11 02:53:24,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:53:24,437 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-11 02:53:24,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:53:24,449 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:53:24,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:53:24,461 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:53:24,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:53:24,480 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-11 02:53:24,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 02:53:24,499 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:53:24,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:53:24,509 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 02:53:24,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:53:24,524 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:53:24,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:53:24,537 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:53:24,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:53:24,537 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:53:24,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:53:24,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:24,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:53:24,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:24,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:53:24,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:24,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:53:24,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:24,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:53:24,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:53:24,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073941130] [2021-03-11 02:53:24,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:53:24,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:53:24,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277863608] [2021-03-11 02:53:24,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:53:24,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:53:24,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:53:24,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:53:24,582 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:53:24,583 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 856 places, 1367 transitions, 49546 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:53:24,583 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:53:24,583 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:53:24,583 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:53:32,808 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2021-03-11 02:53:33,468 INFO L129 PetriNetUnfolder]: 4160/14889 cut-off events. [2021-03-11 02:53:33,468 INFO L130 PetriNetUnfolder]: For 563947/564762 co-relation queries the response was YES. [2021-03-11 02:53:33,731 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89608 conditions, 14889 events. 4160/14889 cut-off events. For 563947/564762 co-relation queries the response was YES. Maximal size of possible extension queue 914. Compared 182934 event pairs, 1889 based on Foata normal form. 149/14688 useless extension candidates. Maximal degree in co-relation 89316. Up to 5008 conditions per place. [2021-03-11 02:53:33,768 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 1003 selfloop transitions, 507 changer transitions 0/1553 dead transitions. [2021-03-11 02:53:33,768 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 876 places, 1553 transitions, 56471 flow [2021-03-11 02:53:33,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-11 02:53:33,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-03-11 02:53:33,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1402 transitions. [2021-03-11 02:53:33,770 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.42796092796092794 [2021-03-11 02:53:33,770 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1402 transitions. [2021-03-11 02:53:33,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1402 transitions. [2021-03-11 02:53:33,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:53:33,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1402 transitions. [2021-03-11 02:53:33,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.76190476190476) internal successors, (1402), 21 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:53:33,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:53:33,772 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:53:33,772 INFO L185 Difference]: Start difference. First operand has 856 places, 1367 transitions, 49546 flow. Second operand 21 states and 1402 transitions. [2021-03-11 02:53:33,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 876 places, 1553 transitions, 56471 flow [2021-03-11 02:53:38,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 869 places, 1553 transitions, 55751 flow, removed 200 selfloop flow, removed 7 redundant places. [2021-03-11 02:53:38,401 INFO L241 Difference]: Finished difference. Result has 878 places, 1397 transitions, 51604 flow [2021-03-11 02:53:38,402 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=48835, PETRI_DIFFERENCE_MINUEND_PLACES=849, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=477, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=869, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=51604, PETRI_PLACES=878, PETRI_TRANSITIONS=1397} [2021-03-11 02:53:38,402 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 736 predicate places. [2021-03-11 02:53:38,402 INFO L480 AbstractCegarLoop]: Abstraction has has 878 places, 1397 transitions, 51604 flow [2021-03-11 02:53:38,402 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:53:38,402 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:53:38,402 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:53:38,402 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-03-11 02:53:38,402 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:53:38,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:53:38,403 INFO L82 PathProgramCache]: Analyzing trace with hash -629000510, now seen corresponding path program 38 times [2021-03-11 02:53:38,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:53:38,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393011925] [2021-03-11 02:53:38,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:53:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:53:38,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:38,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:53:38,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:38,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:53:38,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:38,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:53:38,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:38,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:53:38,492 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:53:38,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:53:38,499 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:53:38,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:53:38,508 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 02:53:38,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:53:38,520 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-11 02:53:38,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:53:38,533 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-11 02:53:38,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:53:38,547 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:53:38,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:53:38,564 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:53:38,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:53:38,581 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-11 02:53:38,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 02:53:38,602 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:53:38,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:53:38,614 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 02:53:38,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:53:38,630 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:53:38,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:53:38,645 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:53:38,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:53:38,645 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:53:38,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:53:38,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:38,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:53:38,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:38,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:53:38,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:38,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:53:38,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:38,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:53:38,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:53:38,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393011925] [2021-03-11 02:53:38,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:53:38,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:53:38,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711475254] [2021-03-11 02:53:38,693 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:53:38,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:53:38,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:53:38,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:53:38,694 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:53:38,694 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 878 places, 1397 transitions, 51604 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:53:38,694 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:53:38,694 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:53:38,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:53:47,185 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2021-03-11 02:53:48,548 INFO L129 PetriNetUnfolder]: 4160/14887 cut-off events. [2021-03-11 02:53:48,548 INFO L130 PetriNetUnfolder]: For 589583/590398 co-relation queries the response was YES. [2021-03-11 02:53:48,851 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90199 conditions, 14887 events. 4160/14887 cut-off events. For 589583/590398 co-relation queries the response was YES. Maximal size of possible extension queue 914. Compared 183001 event pairs, 1889 based on Foata normal form. 149/14692 useless extension candidates. Maximal degree in co-relation 89898. Up to 5008 conditions per place. [2021-03-11 02:53:48,893 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 993 selfloop transitions, 509 changer transitions 0/1545 dead transitions. [2021-03-11 02:53:48,894 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 898 places, 1545 transitions, 57103 flow [2021-03-11 02:53:48,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-11 02:53:48,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-03-11 02:53:48,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1395 transitions. [2021-03-11 02:53:48,895 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4258241758241758 [2021-03-11 02:53:48,895 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1395 transitions. [2021-03-11 02:53:48,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1395 transitions. [2021-03-11 02:53:48,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:53:48,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1395 transitions. [2021-03-11 02:53:48,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.42857142857143) internal successors, (1395), 21 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:53:48,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:53:48,898 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:53:48,898 INFO L185 Difference]: Start difference. First operand has 878 places, 1397 transitions, 51604 flow. Second operand 21 states and 1395 transitions. [2021-03-11 02:53:48,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 898 places, 1545 transitions, 57103 flow [2021-03-11 02:53:53,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 890 places, 1545 transitions, 56479 flow, removed 214 selfloop flow, removed 8 redundant places. [2021-03-11 02:53:53,879 INFO L241 Difference]: Finished difference. Result has 896 places, 1408 transitions, 52493 flow [2021-03-11 02:53:53,880 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=50980, PETRI_DIFFERENCE_MINUEND_PLACES=870, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=498, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=888, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=52493, PETRI_PLACES=896, PETRI_TRANSITIONS=1408} [2021-03-11 02:53:53,880 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 754 predicate places. [2021-03-11 02:53:53,880 INFO L480 AbstractCegarLoop]: Abstraction has has 896 places, 1408 transitions, 52493 flow [2021-03-11 02:53:53,880 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:53:53,880 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:53:53,880 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:53:53,880 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-03-11 02:53:53,880 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:53:53,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:53:53,881 INFO L82 PathProgramCache]: Analyzing trace with hash 713280704, now seen corresponding path program 39 times [2021-03-11 02:53:53,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:53:53,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603086891] [2021-03-11 02:53:53,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:53:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:53:53,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:53,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:53:53,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:53,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:53:53,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:53,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:53:53,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:53,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:53:53,959 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:53:53,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:53:53,966 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:53:53,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:53:53,974 INFO L142 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-03-11 02:53:53,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 02:53:53,982 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-11 02:53:53,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:53:53,993 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:53:53,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:53:54,005 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:53:54,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:53:54,018 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:53:54,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:53:54,043 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:53:54,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:53:54,060 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-11 02:53:54,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 02:53:54,079 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:53:54,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:53:54,093 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:53:54,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:53:54,094 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:53:54,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:53:54,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:54,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:53:54,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:54,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:53:54,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:54,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:53:54,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:53:54,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:53:54,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:53:54,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603086891] [2021-03-11 02:53:54,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:53:54,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:53:54,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362772961] [2021-03-11 02:53:54,143 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:53:54,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:53:54,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:53:54,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:53:54,145 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:53:54,145 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 896 places, 1408 transitions, 52493 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:53:54,145 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:53:54,145 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:53:54,145 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:54:03,662 INFO L129 PetriNetUnfolder]: 4157/15001 cut-off events. [2021-03-11 02:54:03,662 INFO L130 PetriNetUnfolder]: For 625998/626795 co-relation queries the response was YES. [2021-03-11 02:54:03,984 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91360 conditions, 15001 events. 4157/15001 cut-off events. For 625998/626795 co-relation queries the response was YES. Maximal size of possible extension queue 913. Compared 184119 event pairs, 2330 based on Foata normal form. 133/14788 useless extension candidates. Maximal degree in co-relation 91054. Up to 6031 conditions per place. [2021-03-11 02:54:04,027 INFO L132 encePairwiseOnDemand]: 133/156 looper letters, 962 selfloop transitions, 529 changer transitions 0/1534 dead transitions. [2021-03-11 02:54:04,027 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 915 places, 1534 transitions, 58001 flow [2021-03-11 02:54:04,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-11 02:54:04,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-11 02:54:04,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1320 transitions. [2021-03-11 02:54:04,029 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4230769230769231 [2021-03-11 02:54:04,029 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1320 transitions. [2021-03-11 02:54:04,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1320 transitions. [2021-03-11 02:54:04,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:54:04,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1320 transitions. [2021-03-11 02:54:04,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 66.0) internal successors, (1320), 20 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:54:04,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:54:04,031 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:54:04,031 INFO L185 Difference]: Start difference. First operand has 896 places, 1408 transitions, 52493 flow. Second operand 20 states and 1320 transitions. [2021-03-11 02:54:04,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 915 places, 1534 transitions, 58001 flow [2021-03-11 02:54:09,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 905 places, 1534 transitions, 57252 flow, removed 227 selfloop flow, removed 10 redundant places. [2021-03-11 02:54:09,467 INFO L241 Difference]: Finished difference. Result has 912 places, 1436 transitions, 54375 flow [2021-03-11 02:54:09,468 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=51762, PETRI_DIFFERENCE_MINUEND_PLACES=886, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=501, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=888, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=54375, PETRI_PLACES=912, PETRI_TRANSITIONS=1436} [2021-03-11 02:54:09,468 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 770 predicate places. [2021-03-11 02:54:09,468 INFO L480 AbstractCegarLoop]: Abstraction has has 912 places, 1436 transitions, 54375 flow [2021-03-11 02:54:09,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:54:09,468 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:54:09,468 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:54:09,468 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-03-11 02:54:09,468 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:54:09,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:54:09,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1618526484, now seen corresponding path program 40 times [2021-03-11 02:54:09,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:54:09,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105606535] [2021-03-11 02:54:09,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:54:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:54:09,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:09,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:54:09,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:09,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:54:09,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:09,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:54:09,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:09,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:54:09,563 INFO L142 QuantifierPusher]: treesize reduction 20, result has 51.2 percent of original size [2021-03-11 02:54:09,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 02:54:09,576 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 02:54:09,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:54:09,589 INFO L142 QuantifierPusher]: treesize reduction 10, result has 61.5 percent of original size [2021-03-11 02:54:09,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 02:54:09,597 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-11 02:54:09,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:54:09,609 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-11 02:54:09,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:54:09,623 INFO L142 QuantifierPusher]: treesize reduction 23, result has 60.3 percent of original size [2021-03-11 02:54:09,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 02:54:09,648 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.6 percent of original size [2021-03-11 02:54:09,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 02:54:09,693 INFO L142 QuantifierPusher]: treesize reduction 36, result has 60.0 percent of original size [2021-03-11 02:54:09,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-11 02:54:09,729 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.7 percent of original size [2021-03-11 02:54:09,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-11 02:54:09,782 INFO L142 QuantifierPusher]: treesize reduction 36, result has 66.7 percent of original size [2021-03-11 02:54:09,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-11 02:54:09,799 INFO L142 QuantifierPusher]: treesize reduction 14, result has 77.4 percent of original size [2021-03-11 02:54:09,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-11 02:54:09,825 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 02:54:09,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:54:09,839 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 02:54:09,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:54:09,840 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:54:09,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:54:09,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:09,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:54:09,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:09,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:54:09,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:09,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:54:09,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:09,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:54:09,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:54:09,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105606535] [2021-03-11 02:54:09,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:54:09,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-11 02:54:09,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465849224] [2021-03-11 02:54:09,889 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-11 02:54:09,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:54:09,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-11 02:54:09,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-03-11 02:54:09,890 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:54:09,891 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 912 places, 1436 transitions, 54375 flow. Second operand has 19 states, 19 states have (on average 62.10526315789474) internal successors, (1180), 19 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:54:09,891 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:54:09,891 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:54:09,891 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:54:19,517 INFO L129 PetriNetUnfolder]: 4154/15051 cut-off events. [2021-03-11 02:54:19,518 INFO L130 PetriNetUnfolder]: For 662519/663306 co-relation queries the response was YES. [2021-03-11 02:54:19,858 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92490 conditions, 15051 events. 4154/15051 cut-off events. For 662519/663306 co-relation queries the response was YES. Maximal size of possible extension queue 913. Compared 184833 event pairs, 2353 based on Foata normal form. 128/14825 useless extension candidates. Maximal degree in co-relation 92179. Up to 6031 conditions per place. [2021-03-11 02:54:19,898 INFO L132 encePairwiseOnDemand]: 133/156 looper letters, 997 selfloop transitions, 537 changer transitions 0/1577 dead transitions. [2021-03-11 02:54:19,898 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 931 places, 1577 transitions, 60203 flow [2021-03-11 02:54:19,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-11 02:54:19,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-11 02:54:19,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1331 transitions. [2021-03-11 02:54:19,900 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4266025641025641 [2021-03-11 02:54:19,900 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1331 transitions. [2021-03-11 02:54:19,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1331 transitions. [2021-03-11 02:54:19,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:54:19,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1331 transitions. [2021-03-11 02:54:19,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 66.55) internal successors, (1331), 20 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:54:19,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:54:19,902 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:54:19,902 INFO L185 Difference]: Start difference. First operand has 912 places, 1436 transitions, 54375 flow. Second operand 20 states and 1331 transitions. [2021-03-11 02:54:19,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 931 places, 1577 transitions, 60203 flow [2021-03-11 02:54:25,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 920 places, 1577 transitions, 59438 flow, removed 216 selfloop flow, removed 11 redundant places. [2021-03-11 02:54:25,825 INFO L241 Difference]: Finished difference. Result has 927 places, 1467 transitions, 56349 flow [2021-03-11 02:54:25,826 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=53610, PETRI_DIFFERENCE_MINUEND_PLACES=901, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=506, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=911, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=56349, PETRI_PLACES=927, PETRI_TRANSITIONS=1467} [2021-03-11 02:54:25,826 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 785 predicate places. [2021-03-11 02:54:25,826 INFO L480 AbstractCegarLoop]: Abstraction has has 927 places, 1467 transitions, 56349 flow [2021-03-11 02:54:25,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 62.10526315789474) internal successors, (1180), 19 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:54:25,827 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:54:25,827 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:54:25,827 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-03-11 02:54:25,827 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:54:25,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:54:25,827 INFO L82 PathProgramCache]: Analyzing trace with hash 771999210, now seen corresponding path program 41 times [2021-03-11 02:54:25,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:54:25,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034851031] [2021-03-11 02:54:25,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:54:25,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:54:25,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:25,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:54:25,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:25,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:54:25,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:25,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:54:25,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:25,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:54:25,901 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:54:25,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:54:25,908 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:54:25,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:54:25,916 INFO L142 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-03-11 02:54:25,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 02:54:25,925 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-11 02:54:25,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:54:25,937 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-11 02:54:25,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:54:25,951 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:54:25,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:54:25,967 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:54:25,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:54:25,984 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-11 02:54:25,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 02:54:26,006 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:54:26,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:54:26,018 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 02:54:26,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:54:26,035 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:54:26,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:54:26,049 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:54:26,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:54:26,050 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:54:26,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:54:26,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:26,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:54:26,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:26,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:54:26,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:26,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:54:26,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:26,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:54:26,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:54:26,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034851031] [2021-03-11 02:54:26,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:54:26,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:54:26,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675148221] [2021-03-11 02:54:26,099 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:54:26,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:54:26,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:54:26,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:54:26,100 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:54:26,100 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 927 places, 1467 transitions, 56349 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:54:26,100 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:54:26,100 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:54:26,100 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:54:27,733 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-03-11 02:54:36,094 INFO L129 PetriNetUnfolder]: 4151/15087 cut-off events. [2021-03-11 02:54:36,095 INFO L130 PetriNetUnfolder]: For 696989/697776 co-relation queries the response was YES. [2021-03-11 02:54:36,390 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93428 conditions, 15087 events. 4151/15087 cut-off events. For 696989/697776 co-relation queries the response was YES. Maximal size of possible extension queue 913. Compared 185403 event pairs, 2363 based on Foata normal form. 135/14869 useless extension candidates. Maximal degree in co-relation 93114. Up to 6031 conditions per place. [2021-03-11 02:54:36,430 INFO L132 encePairwiseOnDemand]: 133/156 looper letters, 1001 selfloop transitions, 548 changer transitions 0/1592 dead transitions. [2021-03-11 02:54:36,430 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 946 places, 1592 transitions, 62054 flow [2021-03-11 02:54:36,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-11 02:54:36,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-11 02:54:36,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1325 transitions. [2021-03-11 02:54:36,431 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.42467948717948717 [2021-03-11 02:54:36,431 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1325 transitions. [2021-03-11 02:54:36,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1325 transitions. [2021-03-11 02:54:36,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:54:36,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1325 transitions. [2021-03-11 02:54:36,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 66.25) internal successors, (1325), 20 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:54:36,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:54:36,434 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:54:36,434 INFO L185 Difference]: Start difference. First operand has 927 places, 1467 transitions, 56349 flow. Second operand 20 states and 1325 transitions. [2021-03-11 02:54:36,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 946 places, 1592 transitions, 62054 flow [2021-03-11 02:54:42,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 939 places, 1592 transitions, 61301 flow, removed 226 selfloop flow, removed 7 redundant places. [2021-03-11 02:54:42,275 INFO L241 Difference]: Finished difference. Result has 945 places, 1491 transitions, 58322 flow [2021-03-11 02:54:42,276 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=55596, PETRI_DIFFERENCE_MINUEND_PLACES=920, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=524, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=925, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=58322, PETRI_PLACES=945, PETRI_TRANSITIONS=1491} [2021-03-11 02:54:42,277 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 803 predicate places. [2021-03-11 02:54:42,277 INFO L480 AbstractCegarLoop]: Abstraction has has 945 places, 1491 transitions, 58322 flow [2021-03-11 02:54:42,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:54:42,277 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:54:42,277 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:54:42,277 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-03-11 02:54:42,277 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:54:42,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:54:42,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1892157554, now seen corresponding path program 42 times [2021-03-11 02:54:42,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:54:42,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823872099] [2021-03-11 02:54:42,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:54:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:54:42,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:42,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:54:42,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:42,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:54:42,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:42,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:54:42,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:42,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:54:42,353 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:54:42,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:54:42,360 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:54:42,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:54:42,368 INFO L142 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-03-11 02:54:42,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 02:54:42,376 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-11 02:54:42,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:54:42,392 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:54:42,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:54:42,407 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:54:42,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:54:42,422 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:54:42,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:54:42,439 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:54:42,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:54:42,461 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-11 02:54:42,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 02:54:42,478 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:54:42,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:54:42,491 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:54:42,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:54:42,492 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:54:42,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:54:42,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:42,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:54:42,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:42,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:54:42,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:42,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:54:42,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:42,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:54:42,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:54:42,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823872099] [2021-03-11 02:54:42,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:54:42,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:54:42,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490030162] [2021-03-11 02:54:42,539 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:54:42,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:54:42,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:54:42,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:54:42,539 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:54:42,540 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 945 places, 1491 transitions, 58322 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:54:42,540 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:54:42,540 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:54:42,540 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:54:52,685 INFO L129 PetriNetUnfolder]: 4148/15115 cut-off events. [2021-03-11 02:54:52,685 INFO L130 PetriNetUnfolder]: For 734024/734878 co-relation queries the response was YES. [2021-03-11 02:54:53,006 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94448 conditions, 15115 events. 4148/15115 cut-off events. For 734024/734878 co-relation queries the response was YES. Maximal size of possible extension queue 913. Compared 185774 event pairs, 2356 based on Foata normal form. 152/14920 useless extension candidates. Maximal degree in co-relation 94129. Up to 6001 conditions per place. [2021-03-11 02:54:53,049 INFO L132 encePairwiseOnDemand]: 133/156 looper letters, 997 selfloop transitions, 574 changer transitions 0/1614 dead transitions. [2021-03-11 02:54:53,049 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 964 places, 1614 transitions, 64154 flow [2021-03-11 02:54:53,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-11 02:54:53,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-11 02:54:53,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1320 transitions. [2021-03-11 02:54:53,050 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4230769230769231 [2021-03-11 02:54:53,050 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1320 transitions. [2021-03-11 02:54:53,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1320 transitions. [2021-03-11 02:54:53,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:54:53,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1320 transitions. [2021-03-11 02:54:53,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 66.0) internal successors, (1320), 20 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:54:53,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:54:53,053 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:54:53,053 INFO L185 Difference]: Start difference. First operand has 945 places, 1491 transitions, 58322 flow. Second operand 20 states and 1320 transitions. [2021-03-11 02:54:53,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 964 places, 1614 transitions, 64154 flow [2021-03-11 02:54:59,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 956 places, 1614 transitions, 63466 flow, removed 240 selfloop flow, removed 8 redundant places. [2021-03-11 02:54:59,516 INFO L241 Difference]: Finished difference. Result has 962 places, 1518 transitions, 60526 flow [2021-03-11 02:54:59,517 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=57637, PETRI_DIFFERENCE_MINUEND_PLACES=937, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1491, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=547, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=926, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=60526, PETRI_PLACES=962, PETRI_TRANSITIONS=1518} [2021-03-11 02:54:59,517 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 820 predicate places. [2021-03-11 02:54:59,517 INFO L480 AbstractCegarLoop]: Abstraction has has 962 places, 1518 transitions, 60526 flow [2021-03-11 02:54:59,517 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:54:59,517 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:54:59,517 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:54:59,518 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-03-11 02:54:59,518 INFO L428 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:54:59,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:54:59,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1016902378, now seen corresponding path program 43 times [2021-03-11 02:54:59,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:54:59,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597234668] [2021-03-11 02:54:59,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:54:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:54:59,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:59,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:54:59,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:59,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:54:59,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:59,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:54:59,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:59,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:54:59,592 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:54:59,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:54:59,599 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:54:59,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:54:59,607 INFO L142 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-03-11 02:54:59,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 02:54:59,614 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-11 02:54:59,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:54:59,625 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-11 02:54:59,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:54:59,637 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:54:59,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:54:59,650 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:54:59,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:54:59,666 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-11 02:54:59,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 02:54:59,685 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:54:59,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:54:59,695 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 02:54:59,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:54:59,710 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:54:59,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:54:59,723 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:54:59,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:54:59,724 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:54:59,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:54:59,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:59,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:54:59,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:59,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:54:59,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:59,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:54:59,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:54:59,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:54:59,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:54:59,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597234668] [2021-03-11 02:54:59,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:54:59,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:54:59,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272876330] [2021-03-11 02:54:59,767 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:54:59,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:54:59,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:54:59,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:54:59,768 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:54:59,768 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 962 places, 1518 transitions, 60526 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:54:59,768 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:54:59,768 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:54:59,768 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:55:10,314 INFO L129 PetriNetUnfolder]: 4145/15164 cut-off events. [2021-03-11 02:55:10,314 INFO L130 PetriNetUnfolder]: For 779533/780377 co-relation queries the response was YES. [2021-03-11 02:55:10,620 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95631 conditions, 15164 events. 4145/15164 cut-off events. For 779533/780377 co-relation queries the response was YES. Maximal size of possible extension queue 913. Compared 186636 event pairs, 2355 based on Foata normal form. 141/14951 useless extension candidates. Maximal degree in co-relation 95307. Up to 6001 conditions per place. [2021-03-11 02:55:10,661 INFO L132 encePairwiseOnDemand]: 133/156 looper letters, 1041 selfloop transitions, 572 changer transitions 0/1656 dead transitions. [2021-03-11 02:55:10,662 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 981 places, 1656 transitions, 66706 flow [2021-03-11 02:55:10,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-11 02:55:10,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-11 02:55:10,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1331 transitions. [2021-03-11 02:55:10,663 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4266025641025641 [2021-03-11 02:55:10,663 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1331 transitions. [2021-03-11 02:55:10,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1331 transitions. [2021-03-11 02:55:10,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:55:10,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1331 transitions. [2021-03-11 02:55:10,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 66.55) internal successors, (1331), 20 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:55:10,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:55:10,665 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:55:10,665 INFO L185 Difference]: Start difference. First operand has 962 places, 1518 transitions, 60526 flow. Second operand 20 states and 1331 transitions. [2021-03-11 02:55:10,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 981 places, 1656 transitions, 66706 flow [2021-03-11 02:55:16,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 968 places, 1656 transitions, 65891 flow, removed 258 selfloop flow, removed 13 redundant places. [2021-03-11 02:55:16,751 INFO L241 Difference]: Finished difference. Result has 974 places, 1545 transitions, 62668 flow [2021-03-11 02:55:16,753 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=59720, PETRI_DIFFERENCE_MINUEND_PLACES=949, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1518, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=545, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=955, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=62668, PETRI_PLACES=974, PETRI_TRANSITIONS=1545} [2021-03-11 02:55:16,753 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 832 predicate places. [2021-03-11 02:55:16,753 INFO L480 AbstractCegarLoop]: Abstraction has has 974 places, 1545 transitions, 62668 flow [2021-03-11 02:55:16,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:55:16,753 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:55:16,753 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:55:16,753 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-03-11 02:55:16,753 INFO L428 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:55:16,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:55:16,753 INFO L82 PathProgramCache]: Analyzing trace with hash -2021421846, now seen corresponding path program 44 times [2021-03-11 02:55:16,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:55:16,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314745443] [2021-03-11 02:55:16,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:55:16,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:55:16,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:55:16,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:55:16,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:55:16,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:55:16,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:55:16,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:55:16,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:55:16,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:55:16,841 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-11 02:55:16,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:55:16,848 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:55:16,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:55:16,857 INFO L142 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-03-11 02:55:16,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 02:55:16,866 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-11 02:55:16,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:55:16,878 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-11 02:55:16,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:55:16,893 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 02:55:16,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:55:16,909 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-11 02:55:16,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:55:16,927 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-11 02:55:16,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:55:16,949 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-11 02:55:16,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 02:55:16,967 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:55:16,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:55:16,981 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-11 02:55:16,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:55:16,982 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:55:16,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:55:16,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:55:16,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:55:17,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:55:17,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:55:17,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:55:17,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:55:17,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:55:17,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:55:17,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:55:17,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314745443] [2021-03-11 02:55:17,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:55:17,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-11 02:55:17,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784361226] [2021-03-11 02:55:17,036 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-11 02:55:17,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:55:17,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-11 02:55:17,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-03-11 02:55:17,037 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:55:17,038 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 974 places, 1545 transitions, 62668 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:55:17,038 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:55:17,038 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:55:17,038 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:55:27,985 INFO L129 PetriNetUnfolder]: 4145/15157 cut-off events. [2021-03-11 02:55:27,986 INFO L130 PetriNetUnfolder]: For 804908/805763 co-relation queries the response was YES. [2021-03-11 02:55:28,422 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95919 conditions, 15157 events. 4145/15157 cut-off events. For 804908/805763 co-relation queries the response was YES. Maximal size of possible extension queue 913. Compared 186482 event pairs, 2355 based on Foata normal form. 143/14949 useless extension candidates. Maximal degree in co-relation 95595. Up to 6001 conditions per place. [2021-03-11 02:55:28,464 INFO L132 encePairwiseOnDemand]: 133/156 looper letters, 1029 selfloop transitions, 573 changer transitions 0/1644 dead transitions. [2021-03-11 02:55:28,464 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 991 places, 1644 transitions, 67220 flow [2021-03-11 02:55:28,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-11 02:55:28,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-11 02:55:28,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1324 transitions. [2021-03-11 02:55:28,466 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.42435897435897435 [2021-03-11 02:55:28,466 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1324 transitions. [2021-03-11 02:55:28,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1324 transitions. [2021-03-11 02:55:28,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:55:28,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1324 transitions. [2021-03-11 02:55:28,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 66.2) internal successors, (1324), 20 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:55:28,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:55:28,468 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:55:28,468 INFO L185 Difference]: Start difference. First operand has 974 places, 1545 transitions, 62668 flow. Second operand 20 states and 1324 transitions. [2021-03-11 02:55:28,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 991 places, 1644 transitions, 67220 flow [2021-03-11 02:55:34,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 982 places, 1644 transitions, 66372 flow, removed 270 selfloop flow, removed 9 redundant places. [2021-03-11 02:55:34,369 INFO L241 Difference]: Finished difference. Result has 982 places, 1543 transitions, 62886 flow [2021-03-11 02:55:34,370 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=61740, PETRI_DIFFERENCE_MINUEND_PLACES=963, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=573, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=970, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=62886, PETRI_PLACES=982, PETRI_TRANSITIONS=1543} [2021-03-11 02:55:34,370 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 840 predicate places. [2021-03-11 02:55:34,370 INFO L480 AbstractCegarLoop]: Abstraction has has 982 places, 1543 transitions, 62886 flow [2021-03-11 02:55:34,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:55:34,371 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:55:34,371 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:55:34,371 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-03-11 02:55:34,371 INFO L428 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:55:34,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:55:34,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1656089586, now seen corresponding path program 1 times [2021-03-11 02:55:34,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:55:34,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415369136] [2021-03-11 02:55:34,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:55:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:55:34,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:55:34,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:55:34,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:55:34,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 02:55:34,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:55:34,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:55:34,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:55:34,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 02:55:34,495 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-11 02:55:34,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:55:34,512 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-11 02:55:34,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 02:55:34,534 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-11 02:55:34,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 02:55:34,535 INFO L142 QuantifierPusher]: treesize reduction 20, result has 73.3 percent of original size [2021-03-11 02:55:34,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 02:55:34,570 INFO L142 QuantifierPusher]: treesize reduction 20, result has 73.3 percent of original size [2021-03-11 02:55:34,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 02:55:34,579 INFO L142 QuantifierPusher]: treesize reduction 20, result has 74.4 percent of original size [2021-03-11 02:55:34,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-11 02:55:34,623 INFO L142 QuantifierPusher]: treesize reduction 20, result has 74.4 percent of original size [2021-03-11 02:55:34,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-11 02:55:34,664 INFO L142 QuantifierPusher]: treesize reduction 20, result has 73.3 percent of original size [2021-03-11 02:55:34,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 02:55:34,666 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-11 02:55:34,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 02:55:34,682 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-11 02:55:34,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 02:55:34,699 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-11 02:55:34,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:55:34,716 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-11 02:55:34,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 02:55:34,735 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-11 02:55:34,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:55:34,759 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-11 02:55:34,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 02:55:34,774 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-11 02:55:34,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 02:55:34,794 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-11 02:55:34,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:55:34,814 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-11 02:55:34,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:55:34,834 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-11 02:55:34,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 02:55:34,855 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-11 02:55:34,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 02:55:34,871 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-11 02:55:34,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 02:55:34,891 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-11 02:55:34,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 02:55:34,910 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 02:55:34,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:55:34,931 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 02:55:34,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:55:34,931 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:55:34,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:55:34,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:55:34,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:55:34,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:55:34,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:55:34,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:55:34,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:55:35,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:55:35,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:55:35,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:55:35,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415369136] [2021-03-11 02:55:35,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:55:35,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-11 02:55:35,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823109346] [2021-03-11 02:55:35,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-11 02:55:35,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:55:35,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-11 02:55:35,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-03-11 02:55:35,009 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:55:35,010 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 982 places, 1543 transitions, 62886 flow. Second operand has 26 states, 26 states have (on average 61.46153846153846) internal successors, (1598), 26 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:55:35,010 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:55:35,010 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:55:35,010 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:55:49,501 INFO L129 PetriNetUnfolder]: 5079/19596 cut-off events. [2021-03-11 02:55:49,501 INFO L130 PetriNetUnfolder]: For 889412/890423 co-relation queries the response was YES. [2021-03-11 02:55:50,236 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113631 conditions, 19596 events. 5079/19596 cut-off events. For 889412/890423 co-relation queries the response was YES. Maximal size of possible extension queue 1231. Compared 261391 event pairs, 1886 based on Foata normal form. 362/19526 useless extension candidates. Maximal degree in co-relation 113310. Up to 5899 conditions per place. [2021-03-11 02:55:50,291 INFO L132 encePairwiseOnDemand]: 125/156 looper letters, 1210 selfloop transitions, 665 changer transitions 19/2056 dead transitions. [2021-03-11 02:55:50,292 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1010 places, 2056 transitions, 81146 flow [2021-03-11 02:55:50,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-11 02:55:50,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2021-03-11 02:55:50,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 1891 transitions. [2021-03-11 02:55:50,293 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.41799292661361626 [2021-03-11 02:55:50,293 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 1891 transitions. [2021-03-11 02:55:50,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 1891 transitions. [2021-03-11 02:55:50,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:55:50,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 1891 transitions. [2021-03-11 02:55:50,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 65.20689655172414) internal successors, (1891), 29 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:55:50,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 156.0) internal successors, (4680), 30 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:55:50,297 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 156.0) internal successors, (4680), 30 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:55:50,297 INFO L185 Difference]: Start difference. First operand has 982 places, 1543 transitions, 62886 flow. Second operand 29 states and 1891 transitions. [2021-03-11 02:55:50,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1010 places, 2056 transitions, 81146 flow [2021-03-11 02:55:56,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 903 places, 2056 transitions, 78589 flow, removed 281 selfloop flow, removed 107 redundant places. [2021-03-11 02:55:56,365 INFO L241 Difference]: Finished difference. Result has 919 places, 1774 transitions, 68565 flow [2021-03-11 02:55:56,366 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=60499, PETRI_DIFFERENCE_MINUEND_PLACES=875, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=456, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=972, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=68565, PETRI_PLACES=919, PETRI_TRANSITIONS=1774} [2021-03-11 02:55:56,366 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 777 predicate places. [2021-03-11 02:55:56,366 INFO L480 AbstractCegarLoop]: Abstraction has has 919 places, 1774 transitions, 68565 flow [2021-03-11 02:55:56,367 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 61.46153846153846) internal successors, (1598), 26 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:55:56,367 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:55:56,367 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:55:56,367 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-03-11 02:55:56,367 INFO L428 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:55:56,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:55:56,367 INFO L82 PathProgramCache]: Analyzing trace with hash 611364908, now seen corresponding path program 2 times [2021-03-11 02:55:56,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:55:56,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557709049] [2021-03-11 02:55:56,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:55:56,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:55:56,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:55:56,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:55:56,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:55:56,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 02:55:56,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:55:56,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:55:56,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:55:56,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 02:55:56,482 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-11 02:55:56,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:55:56,500 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-11 02:55:56,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:55:56,524 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-11 02:55:56,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:55:56,525 INFO L142 QuantifierPusher]: treesize reduction 29, result has 62.3 percent of original size [2021-03-11 02:55:56,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-11 02:55:56,552 INFO L142 QuantifierPusher]: treesize reduction 29, result has 62.3 percent of original size [2021-03-11 02:55:56,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-11 02:55:56,554 INFO L142 QuantifierPusher]: treesize reduction 29, result has 63.7 percent of original size [2021-03-11 02:55:56,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 02:55:56,586 INFO L142 QuantifierPusher]: treesize reduction 29, result has 63.7 percent of original size [2021-03-11 02:55:56,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 02:55:56,620 INFO L142 QuantifierPusher]: treesize reduction 29, result has 62.3 percent of original size [2021-03-11 02:55:56,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-11 02:55:56,623 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-11 02:55:56,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 02:55:56,638 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-11 02:55:56,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 02:55:56,654 INFO L142 QuantifierPusher]: treesize reduction 15, result has 63.4 percent of original size [2021-03-11 02:55:56,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:55:56,670 INFO L142 QuantifierPusher]: treesize reduction 22, result has 59.3 percent of original size [2021-03-11 02:55:56,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 02:55:56,688 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-11 02:55:56,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:55:56,710 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-11 02:55:56,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 02:55:56,724 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-11 02:55:56,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 02:55:56,744 INFO L142 QuantifierPusher]: treesize reduction 38, result has 53.1 percent of original size [2021-03-11 02:55:56,745 INFO L147 QuantifierPusher]: treesize reduction 7, result has 83.7 percent of original size 36 [2021-03-11 02:55:56,778 INFO L142 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size [2021-03-11 02:55:56,780 INFO L147 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size 30 [2021-03-11 02:55:56,813 INFO L142 QuantifierPusher]: treesize reduction 17, result has 63.0 percent of original size [2021-03-11 02:55:56,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 02:55:56,834 INFO L142 QuantifierPusher]: treesize reduction 17, result has 58.5 percent of original size [2021-03-11 02:55:56,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 02:55:56,848 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-11 02:55:56,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:55:56,869 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-11 02:55:56,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:55:56,880 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-11 02:55:56,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:55:56,901 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 02:55:56,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:55:56,920 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:55:56,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:55:56,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:55:56,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:55:56,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:55:56,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:55:56,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:55:56,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:55:56,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:55:56,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:55:56,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:55:56,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557709049] [2021-03-11 02:55:56,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:55:56,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-11 02:55:56,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286388655] [2021-03-11 02:55:56,990 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-11 02:55:56,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:55:56,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-11 02:55:56,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-03-11 02:55:56,991 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:55:56,991 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 919 places, 1774 transitions, 68565 flow. Second operand has 26 states, 26 states have (on average 61.46153846153846) internal successors, (1598), 26 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:55:56,991 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:55:56,991 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:55:56,991 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:55:58,343 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-03-11 02:56:12,372 INFO L129 PetriNetUnfolder]: 5435/21335 cut-off events. [2021-03-11 02:56:12,372 INFO L130 PetriNetUnfolder]: For 971973/973595 co-relation queries the response was YES. [2021-03-11 02:56:13,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 130556 conditions, 21335 events. 5435/21335 cut-off events. For 971973/973595 co-relation queries the response was YES. Maximal size of possible extension queue 1363. Compared 292320 event pairs, 1856 based on Foata normal form. 437/21300 useless extension candidates. Maximal degree in co-relation 130316. Up to 9640 conditions per place. [2021-03-11 02:56:13,421 INFO L132 encePairwiseOnDemand]: 125/156 looper letters, 1217 selfloop transitions, 662 changer transitions 48/2089 dead transitions. [2021-03-11 02:56:13,421 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 942 places, 2089 transitions, 80726 flow [2021-03-11 02:56:13,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-11 02:56:13,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-03-11 02:56:13,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2016 transitions. [2021-03-11 02:56:13,422 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.41687344913151364 [2021-03-11 02:56:13,422 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 2016 transitions. [2021-03-11 02:56:13,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 2016 transitions. [2021-03-11 02:56:13,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:56:13,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 2016 transitions. [2021-03-11 02:56:13,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 65.03225806451613) internal successors, (2016), 31 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:56:13,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 156.0) internal successors, (4992), 32 states have internal predecessors, (4992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:56:13,426 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 156.0) internal successors, (4992), 32 states have internal predecessors, (4992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:56:13,426 INFO L185 Difference]: Start difference. First operand has 919 places, 1774 transitions, 68565 flow. Second operand 31 states and 2016 transitions. [2021-03-11 02:56:13,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 942 places, 2089 transitions, 80726 flow [2021-03-11 02:56:18,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 928 places, 2089 transitions, 79525 flow, removed 160 selfloop flow, removed 14 redundant places. [2021-03-11 02:56:18,849 INFO L241 Difference]: Finished difference. Result has 940 places, 1893 transitions, 72457 flow [2021-03-11 02:56:18,850 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=67471, PETRI_DIFFERENCE_MINUEND_PLACES=898, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1774, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=557, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=72457, PETRI_PLACES=940, PETRI_TRANSITIONS=1893} [2021-03-11 02:56:18,850 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 798 predicate places. [2021-03-11 02:56:18,851 INFO L480 AbstractCegarLoop]: Abstraction has has 940 places, 1893 transitions, 72457 flow [2021-03-11 02:56:18,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 61.46153846153846) internal successors, (1598), 26 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:56:18,851 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:56:18,851 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:56:18,851 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-03-11 02:56:18,851 INFO L428 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:56:18,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:56:18,851 INFO L82 PathProgramCache]: Analyzing trace with hash -76500476, now seen corresponding path program 3 times [2021-03-11 02:56:18,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:56:18,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007400358] [2021-03-11 02:56:18,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:56:18,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:56:18,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:18,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:56:18,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:18,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 02:56:18,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:18,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:56:18,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:18,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 02:56:18,972 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-11 02:56:18,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:56:18,990 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-11 02:56:18,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:56:19,007 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-11 02:56:19,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:56:19,008 INFO L142 QuantifierPusher]: treesize reduction 29, result has 62.3 percent of original size [2021-03-11 02:56:19,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-11 02:56:19,033 INFO L142 QuantifierPusher]: treesize reduction 29, result has 62.3 percent of original size [2021-03-11 02:56:19,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-11 02:56:19,034 INFO L142 QuantifierPusher]: treesize reduction 29, result has 63.7 percent of original size [2021-03-11 02:56:19,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 02:56:19,078 INFO L142 QuantifierPusher]: treesize reduction 29, result has 63.7 percent of original size [2021-03-11 02:56:19,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 02:56:19,116 INFO L142 QuantifierPusher]: treesize reduction 29, result has 62.3 percent of original size [2021-03-11 02:56:19,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-11 02:56:19,117 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-11 02:56:19,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 02:56:19,133 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-11 02:56:19,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 02:56:19,150 INFO L142 QuantifierPusher]: treesize reduction 15, result has 63.4 percent of original size [2021-03-11 02:56:19,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:56:19,167 INFO L142 QuantifierPusher]: treesize reduction 22, result has 59.3 percent of original size [2021-03-11 02:56:19,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 02:56:19,187 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-11 02:56:19,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:56:19,212 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-11 02:56:19,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 02:56:19,227 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.9 percent of original size [2021-03-11 02:56:19,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 02:56:19,249 INFO L142 QuantifierPusher]: treesize reduction 15, result has 63.4 percent of original size [2021-03-11 02:56:19,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:56:19,269 INFO L142 QuantifierPusher]: treesize reduction 15, result has 63.4 percent of original size [2021-03-11 02:56:19,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:56:19,290 INFO L142 QuantifierPusher]: treesize reduction 17, result has 63.0 percent of original size [2021-03-11 02:56:19,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 02:56:19,312 INFO L142 QuantifierPusher]: treesize reduction 17, result has 58.5 percent of original size [2021-03-11 02:56:19,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 02:56:19,327 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-11 02:56:19,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:56:19,349 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-11 02:56:19,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:56:19,350 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-11 02:56:19,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:56:19,370 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 02:56:19,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:56:19,390 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:56:19,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:56:19,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:19,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:56:19,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:19,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:56:19,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:19,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:56:19,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:19,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:56:19,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:56:19,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007400358] [2021-03-11 02:56:19,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:56:19,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-11 02:56:19,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382188715] [2021-03-11 02:56:19,462 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-11 02:56:19,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:56:19,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-11 02:56:19,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-03-11 02:56:19,463 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:56:19,464 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 940 places, 1893 transitions, 72457 flow. Second operand has 26 states, 26 states have (on average 61.46153846153846) internal successors, (1598), 26 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:56:19,464 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:56:19,464 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:56:19,464 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:56:35,392 INFO L129 PetriNetUnfolder]: 5412/21374 cut-off events. [2021-03-11 02:56:35,392 INFO L130 PetriNetUnfolder]: For 995792/997508 co-relation queries the response was YES. [2021-03-11 02:56:36,587 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134887 conditions, 21374 events. 5412/21374 cut-off events. For 995792/997508 co-relation queries the response was YES. Maximal size of possible extension queue 1400. Compared 293958 event pairs, 1731 based on Foata normal form. 818/21692 useless extension candidates. Maximal degree in co-relation 134640. Up to 6085 conditions per place. [2021-03-11 02:56:36,649 INFO L132 encePairwiseOnDemand]: 125/156 looper letters, 1259 selfloop transitions, 716 changer transitions 43/2180 dead transitions. [2021-03-11 02:56:36,649 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 959 places, 2180 transitions, 85361 flow [2021-03-11 02:56:36,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-11 02:56:36,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2021-03-11 02:56:36,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 1826 transitions. [2021-03-11 02:56:36,650 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.41804029304029305 [2021-03-11 02:56:36,650 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 1826 transitions. [2021-03-11 02:56:36,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 1826 transitions. [2021-03-11 02:56:36,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:56:36,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 1826 transitions. [2021-03-11 02:56:36,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 65.21428571428571) internal successors, (1826), 28 states have internal predecessors, (1826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:56:36,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 156.0) internal successors, (4524), 29 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:56:36,654 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 156.0) internal successors, (4524), 29 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:56:36,654 INFO L185 Difference]: Start difference. First operand has 940 places, 1893 transitions, 72457 flow. Second operand 28 states and 1826 transitions. [2021-03-11 02:56:36,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 959 places, 2180 transitions, 85361 flow [2021-03-11 02:56:42,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 943 places, 2180 transitions, 84828 flow, removed 176 selfloop flow, removed 16 redundant places. [2021-03-11 02:56:42,473 INFO L241 Difference]: Finished difference. Result has 951 places, 1891 transitions, 73520 flow [2021-03-11 02:56:42,474 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=72041, PETRI_DIFFERENCE_MINUEND_PLACES=916, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1893, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=713, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=73520, PETRI_PLACES=951, PETRI_TRANSITIONS=1891} [2021-03-11 02:56:42,474 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 809 predicate places. [2021-03-11 02:56:42,475 INFO L480 AbstractCegarLoop]: Abstraction has has 951 places, 1891 transitions, 73520 flow [2021-03-11 02:56:42,475 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 61.46153846153846) internal successors, (1598), 26 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:56:42,475 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:56:42,475 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:56:42,475 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-03-11 02:56:42,475 INFO L428 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:56:42,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:56:42,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1016750494, now seen corresponding path program 1 times [2021-03-11 02:56:42,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:56:42,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560747098] [2021-03-11 02:56:42,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:56:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:56:42,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:42,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:56:42,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:42,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 02:56:42,532 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-11 02:56:42,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 02:56:42,536 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-03-11 02:56:42,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:56:42,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:42,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 02:56:42,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:42,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 02:56:42,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:42,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:56:42,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:42,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:56:42,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:42,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:56:42,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:42,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 02:56:42,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:42,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:56:42,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:42,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 02:56:42,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:42,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:56:42,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:42,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:56:42,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:42,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 02:56:42,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:42,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 02:56:42,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:42,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 02:56:42,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:42,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 02:56:42,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:42,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:56:42,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:42,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:56:42,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:42,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:56:42,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:56:42,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:56:42,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:56:42,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560747098] [2021-03-11 02:56:42,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:56:42,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-03-11 02:56:42,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583688838] [2021-03-11 02:56:42,708 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 02:56:42,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:56:42,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 02:56:42,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-03-11 02:56:42,709 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 156 [2021-03-11 02:56:42,709 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 951 places, 1891 transitions, 73520 flow. Second operand has 16 states, 16 states have (on average 89.125) internal successors, (1426), 16 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:56:42,709 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:56:42,709 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 156 [2021-03-11 02:56:42,709 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:57:05,346 INFO L129 PetriNetUnfolder]: 8226/32414 cut-off events. [2021-03-11 02:57:05,347 INFO L130 PetriNetUnfolder]: For 1515217/1516400 co-relation queries the response was YES. [2021-03-11 02:57:07,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 209657 conditions, 32414 events. 8226/32414 cut-off events. For 1515217/1516400 co-relation queries the response was YES. Maximal size of possible extension queue 2211. Compared 473910 event pairs, 1974 based on Foata normal form. 832/32539 useless extension candidates. Maximal degree in co-relation 209408. Up to 8644 conditions per place. [2021-03-11 02:57:07,473 INFO L132 encePairwiseOnDemand]: 138/156 looper letters, 1238 selfloop transitions, 545 changer transitions 127/2801 dead transitions. [2021-03-11 02:57:07,473 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 976 places, 2801 transitions, 101093 flow [2021-03-11 02:57:07,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-03-11 02:57:07,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2021-03-11 02:57:07,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3170 transitions. [2021-03-11 02:57:07,475 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5976621417797888 [2021-03-11 02:57:07,475 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3170 transitions. [2021-03-11 02:57:07,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3170 transitions. [2021-03-11 02:57:07,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:57:07,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3170 transitions. [2021-03-11 02:57:07,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 93.23529411764706) internal successors, (3170), 34 states have internal predecessors, (3170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:57:07,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 156.0) internal successors, (5460), 35 states have internal predecessors, (5460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:57:07,479 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 156.0) internal successors, (5460), 35 states have internal predecessors, (5460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:57:07,480 INFO L185 Difference]: Start difference. First operand has 951 places, 1891 transitions, 73520 flow. Second operand 34 states and 3170 transitions. [2021-03-11 02:57:07,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 976 places, 2801 transitions, 101093 flow [2021-03-11 02:57:18,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 954 places, 2801 transitions, 99484 flow, removed 25 selfloop flow, removed 22 redundant places. [2021-03-11 02:57:18,443 INFO L241 Difference]: Finished difference. Result has 976 places, 2201 transitions, 87199 flow [2021-03-11 02:57:18,445 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=72185, PETRI_DIFFERENCE_MINUEND_PLACES=921, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1885, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=259, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=87199, PETRI_PLACES=976, PETRI_TRANSITIONS=2201} [2021-03-11 02:57:18,445 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 834 predicate places. [2021-03-11 02:57:18,445 INFO L480 AbstractCegarLoop]: Abstraction has has 976 places, 2201 transitions, 87199 flow [2021-03-11 02:57:18,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 89.125) internal successors, (1426), 16 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:57:18,445 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:57:18,445 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:57:18,445 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-03-11 02:57:18,445 INFO L428 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:57:18,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:57:18,445 INFO L82 PathProgramCache]: Analyzing trace with hash 179970580, now seen corresponding path program 4 times [2021-03-11 02:57:18,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:57:18,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146834065] [2021-03-11 02:57:18,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:57:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:57:18,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:57:18,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:57:18,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:57:18,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 02:57:18,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:57:18,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:57:18,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:57:18,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 02:57:18,557 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-11 02:57:18,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:57:18,575 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-11 02:57:18,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 02:57:18,601 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-11 02:57:18,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 02:57:18,602 INFO L142 QuantifierPusher]: treesize reduction 20, result has 73.3 percent of original size [2021-03-11 02:57:18,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 02:57:18,640 INFO L142 QuantifierPusher]: treesize reduction 20, result has 73.3 percent of original size [2021-03-11 02:57:18,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 02:57:18,641 INFO L142 QuantifierPusher]: treesize reduction 20, result has 74.4 percent of original size [2021-03-11 02:57:18,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-11 02:57:18,682 INFO L142 QuantifierPusher]: treesize reduction 20, result has 74.4 percent of original size [2021-03-11 02:57:18,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-11 02:57:18,724 INFO L142 QuantifierPusher]: treesize reduction 20, result has 73.3 percent of original size [2021-03-11 02:57:18,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 02:57:18,725 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-11 02:57:18,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 02:57:18,741 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-11 02:57:18,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 02:57:18,758 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-11 02:57:18,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 02:57:18,779 INFO L142 QuantifierPusher]: treesize reduction 27, result has 60.9 percent of original size [2021-03-11 02:57:18,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 02:57:18,802 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-11 02:57:18,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:57:18,826 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-11 02:57:18,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 02:57:18,839 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-11 02:57:18,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 02:57:18,859 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-11 02:57:18,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:57:18,877 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-11 02:57:18,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:57:18,897 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-11 02:57:18,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 02:57:18,918 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-11 02:57:18,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 02:57:18,933 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-11 02:57:18,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 02:57:18,953 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-11 02:57:18,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:57:18,974 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 02:57:18,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:57:18,994 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 02:57:18,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:57:18,995 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:57:18,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:57:19,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:57:19,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:57:19,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:57:19,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:57:19,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:57:19,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:57:19,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:57:19,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:57:19,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:57:19,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146834065] [2021-03-11 02:57:19,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:57:19,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-11 02:57:19,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977119389] [2021-03-11 02:57:19,066 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-11 02:57:19,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:57:19,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-11 02:57:19,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-03-11 02:57:19,067 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:57:19,068 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 976 places, 2201 transitions, 87199 flow. Second operand has 26 states, 26 states have (on average 61.46153846153846) internal successors, (1598), 26 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:57:19,068 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:57:19,068 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:57:19,068 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:57:43,291 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2021-03-11 02:57:44,685 INFO L129 PetriNetUnfolder]: 7326/30481 cut-off events. [2021-03-11 02:57:44,686 INFO L130 PetriNetUnfolder]: For 1549750/1552332 co-relation queries the response was YES. [2021-03-11 02:57:46,603 INFO L84 FinitePrefix]: Finished finitePrefix Result has 205885 conditions, 30481 events. 7326/30481 cut-off events. For 1549750/1552332 co-relation queries the response was YES. Maximal size of possible extension queue 1981. Compared 450338 event pairs, 2468 based on Foata normal form. 1271/31047 useless extension candidates. Maximal degree in co-relation 205620. Up to 8223 conditions per place. [2021-03-11 02:57:46,690 INFO L132 encePairwiseOnDemand]: 125/156 looper letters, 1476 selfloop transitions, 835 changer transitions 52/2527 dead transitions. [2021-03-11 02:57:46,690 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1003 places, 2527 transitions, 103013 flow [2021-03-11 02:57:46,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-11 02:57:46,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2021-03-11 02:57:46,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 1951 transitions. [2021-03-11 02:57:46,692 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4168803418803419 [2021-03-11 02:57:46,692 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 1951 transitions. [2021-03-11 02:57:46,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 1951 transitions. [2021-03-11 02:57:46,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:57:46,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 1951 transitions. [2021-03-11 02:57:46,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 65.03333333333333) internal successors, (1951), 30 states have internal predecessors, (1951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:57:46,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 156.0) internal successors, (4836), 31 states have internal predecessors, (4836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:57:46,695 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 156.0) internal successors, (4836), 31 states have internal predecessors, (4836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:57:46,695 INFO L185 Difference]: Start difference. First operand has 976 places, 2201 transitions, 87199 flow. Second operand 30 states and 1951 transitions. [2021-03-11 02:57:46,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1003 places, 2527 transitions, 103013 flow [2021-03-11 02:57:57,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 989 places, 2527 transitions, 101054 flow, removed 322 selfloop flow, removed 14 redundant places. [2021-03-11 02:57:58,005 INFO L241 Difference]: Finished difference. Result has 994 places, 2187 transitions, 86783 flow [2021-03-11 02:57:58,007 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=85615, PETRI_DIFFERENCE_MINUEND_PLACES=960, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=835, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=86783, PETRI_PLACES=994, PETRI_TRANSITIONS=2187} [2021-03-11 02:57:58,007 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 852 predicate places. [2021-03-11 02:57:58,007 INFO L480 AbstractCegarLoop]: Abstraction has has 994 places, 2187 transitions, 86783 flow [2021-03-11 02:57:58,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 61.46153846153846) internal successors, (1598), 26 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:57:58,007 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:57:58,007 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:57:58,007 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-03-11 02:57:58,007 INFO L428 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:57:58,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:57:58,007 INFO L82 PathProgramCache]: Analyzing trace with hash -662255634, now seen corresponding path program 5 times [2021-03-11 02:57:58,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:57:58,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344481786] [2021-03-11 02:57:58,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:57:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:57:58,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:57:58,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:57:58,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:57:58,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 02:57:58,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:57:58,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:57:58,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:57:58,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 02:57:58,175 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-11 02:57:58,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:57:58,191 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-11 02:57:58,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:57:58,209 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-11 02:57:58,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:57:58,210 INFO L142 QuantifierPusher]: treesize reduction 29, result has 62.3 percent of original size [2021-03-11 02:57:58,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-11 02:57:58,236 INFO L142 QuantifierPusher]: treesize reduction 29, result has 62.3 percent of original size [2021-03-11 02:57:58,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-11 02:57:58,238 INFO L142 QuantifierPusher]: treesize reduction 29, result has 63.7 percent of original size [2021-03-11 02:57:58,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 02:57:58,276 INFO L142 QuantifierPusher]: treesize reduction 29, result has 63.7 percent of original size [2021-03-11 02:57:58,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 02:57:58,313 INFO L142 QuantifierPusher]: treesize reduction 29, result has 62.3 percent of original size [2021-03-11 02:57:58,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-11 02:57:58,313 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-11 02:57:58,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 02:57:58,330 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-11 02:57:58,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 02:57:58,347 INFO L142 QuantifierPusher]: treesize reduction 15, result has 63.4 percent of original size [2021-03-11 02:57:58,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:57:58,364 INFO L142 QuantifierPusher]: treesize reduction 22, result has 59.3 percent of original size [2021-03-11 02:57:58,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 02:57:58,384 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-11 02:57:58,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:57:58,409 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-11 02:57:58,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 02:57:58,423 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.9 percent of original size [2021-03-11 02:57:58,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 02:57:58,445 INFO L142 QuantifierPusher]: treesize reduction 15, result has 63.4 percent of original size [2021-03-11 02:57:58,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:57:58,464 INFO L142 QuantifierPusher]: treesize reduction 15, result has 63.4 percent of original size [2021-03-11 02:57:58,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:57:58,485 INFO L142 QuantifierPusher]: treesize reduction 15, result has 62.5 percent of original size [2021-03-11 02:57:58,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:57:58,507 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-11 02:57:58,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 02:57:58,531 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-11 02:57:58,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:57:58,548 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-11 02:57:58,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:57:58,565 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-11 02:57:58,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:57:58,587 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 02:57:58,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:57:58,609 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:57:58,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:57:58,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:57:58,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:57:58,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:57:58,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:57:58,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:57:58,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:57:58,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:57:58,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:57:58,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:57:58,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344481786] [2021-03-11 02:57:58,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:57:58,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-11 02:57:58,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613812838] [2021-03-11 02:57:58,683 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-11 02:57:58,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:57:58,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-11 02:57:58,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-03-11 02:57:58,685 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:57:58,685 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 994 places, 2187 transitions, 86783 flow. Second operand has 26 states, 26 states have (on average 61.46153846153846) internal successors, (1598), 26 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:57:58,685 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:57:58,685 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:57:58,685 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:58:23,186 INFO L129 PetriNetUnfolder]: 7308/30432 cut-off events. [2021-03-11 02:58:23,187 INFO L130 PetriNetUnfolder]: For 1566829/1569374 co-relation queries the response was YES. [2021-03-11 02:58:25,022 INFO L84 FinitePrefix]: Finished finitePrefix Result has 207120 conditions, 30432 events. 7308/30432 cut-off events. For 1566829/1569374 co-relation queries the response was YES. Maximal size of possible extension queue 1984. Compared 449477 event pairs, 2458 based on Foata normal form. 1227/30947 useless extension candidates. Maximal degree in co-relation 206854. Up to 8223 conditions per place. [2021-03-11 02:58:25,114 INFO L132 encePairwiseOnDemand]: 125/156 looper letters, 1473 selfloop transitions, 811 changer transitions 72/2520 dead transitions. [2021-03-11 02:58:25,114 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1012 places, 2520 transitions, 102335 flow [2021-03-11 02:58:25,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-11 02:58:25,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2021-03-11 02:58:25,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 1824 transitions. [2021-03-11 02:58:25,116 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4175824175824176 [2021-03-11 02:58:25,116 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 1824 transitions. [2021-03-11 02:58:25,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 1824 transitions. [2021-03-11 02:58:25,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:58:25,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 1824 transitions. [2021-03-11 02:58:25,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 65.14285714285714) internal successors, (1824), 28 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:58:25,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 156.0) internal successors, (4524), 29 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:58:25,119 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 156.0) internal successors, (4524), 29 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:58:25,119 INFO L185 Difference]: Start difference. First operand has 994 places, 2187 transitions, 86783 flow. Second operand 28 states and 1824 transitions. [2021-03-11 02:58:25,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1012 places, 2520 transitions, 102335 flow [2021-03-11 02:58:36,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 986 places, 2520 transitions, 100348 flow, removed 30 selfloop flow, removed 26 redundant places. [2021-03-11 02:58:36,381 INFO L241 Difference]: Finished difference. Result has 995 places, 2176 transitions, 86112 flow [2021-03-11 02:58:36,382 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=84862, PETRI_DIFFERENCE_MINUEND_PLACES=959, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=811, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=86112, PETRI_PLACES=995, PETRI_TRANSITIONS=2176} [2021-03-11 02:58:36,382 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 853 predicate places. [2021-03-11 02:58:36,382 INFO L480 AbstractCegarLoop]: Abstraction has has 995 places, 2176 transitions, 86112 flow [2021-03-11 02:58:36,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 61.46153846153846) internal successors, (1598), 26 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:58:36,383 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:58:36,383 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:58:36,383 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-03-11 02:58:36,383 INFO L428 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:58:36,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:58:36,383 INFO L82 PathProgramCache]: Analyzing trace with hash -577345202, now seen corresponding path program 6 times [2021-03-11 02:58:36,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:58:36,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489810603] [2021-03-11 02:58:36,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:58:36,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:58:36,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:58:36,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:58:36,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:58:36,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 02:58:36,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:58:36,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:58:36,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:58:36,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 02:58:36,494 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-11 02:58:36,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:58:36,514 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-11 02:58:36,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:58:36,536 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-11 02:58:36,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:58:36,537 INFO L142 QuantifierPusher]: treesize reduction 29, result has 62.3 percent of original size [2021-03-11 02:58:36,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-11 02:58:36,569 INFO L142 QuantifierPusher]: treesize reduction 29, result has 62.3 percent of original size [2021-03-11 02:58:36,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-11 02:58:36,571 INFO L142 QuantifierPusher]: treesize reduction 29, result has 63.7 percent of original size [2021-03-11 02:58:36,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 02:58:36,608 INFO L142 QuantifierPusher]: treesize reduction 29, result has 63.7 percent of original size [2021-03-11 02:58:36,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 02:58:36,645 INFO L142 QuantifierPusher]: treesize reduction 29, result has 62.3 percent of original size [2021-03-11 02:58:36,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-11 02:58:36,646 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-11 02:58:36,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 02:58:36,663 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-11 02:58:36,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 02:58:36,681 INFO L142 QuantifierPusher]: treesize reduction 15, result has 63.4 percent of original size [2021-03-11 02:58:36,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:58:36,697 INFO L142 QuantifierPusher]: treesize reduction 22, result has 59.3 percent of original size [2021-03-11 02:58:36,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 02:58:36,718 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-11 02:58:36,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:58:36,743 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-11 02:58:36,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 02:58:36,757 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-11 02:58:36,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 02:58:36,779 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.0 percent of original size [2021-03-11 02:58:36,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:58:36,802 INFO L142 QuantifierPusher]: treesize reduction 15, result has 62.5 percent of original size [2021-03-11 02:58:36,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:58:36,822 INFO L142 QuantifierPusher]: treesize reduction 15, result has 62.5 percent of original size [2021-03-11 02:58:36,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 02:58:36,844 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-11 02:58:36,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 02:58:36,866 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-11 02:58:36,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:58:36,882 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-11 02:58:36,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:58:36,898 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-11 02:58:36,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:58:36,919 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 02:58:36,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:58:36,939 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:58:36,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:58:36,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:58:36,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:58:36,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:58:36,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:58:36,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:58:36,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:58:37,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:58:37,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:58:37,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:58:37,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489810603] [2021-03-11 02:58:37,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:58:37,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-11 02:58:37,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535589438] [2021-03-11 02:58:37,011 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-11 02:58:37,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:58:37,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-11 02:58:37,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-03-11 02:58:37,012 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:58:37,013 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 995 places, 2176 transitions, 86112 flow. Second operand has 26 states, 26 states have (on average 61.46153846153846) internal successors, (1598), 26 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:58:37,013 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:58:37,013 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:58:37,013 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:59:03,775 INFO L129 PetriNetUnfolder]: 7759/33895 cut-off events. [2021-03-11 02:59:03,776 INFO L130 PetriNetUnfolder]: For 1859995/1862874 co-relation queries the response was YES. [2021-03-11 02:59:05,130 INFO L84 FinitePrefix]: Finished finitePrefix Result has 234048 conditions, 33895 events. 7759/33895 cut-off events. For 1859995/1862874 co-relation queries the response was YES. Maximal size of possible extension queue 2205. Compared 512873 event pairs, 2790 based on Foata normal form. 1027/34227 useless extension candidates. Maximal degree in co-relation 233780. Up to 13663 conditions per place. [2021-03-11 02:59:05,220 INFO L132 encePairwiseOnDemand]: 127/156 looper letters, 1579 selfloop transitions, 980 changer transitions 88/2811 dead transitions. [2021-03-11 02:59:05,220 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1016 places, 2811 transitions, 116748 flow [2021-03-11 02:59:05,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-03-11 02:59:05,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2021-03-11 02:59:05,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 2062 transitions. [2021-03-11 02:59:05,222 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4130608974358974 [2021-03-11 02:59:05,222 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 2062 transitions. [2021-03-11 02:59:05,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 2062 transitions. [2021-03-11 02:59:05,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:59:05,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 2062 transitions. [2021-03-11 02:59:05,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 64.4375) internal successors, (2062), 32 states have internal predecessors, (2062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:59:05,225 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 156.0) internal successors, (5148), 33 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:59:05,225 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 156.0) internal successors, (5148), 33 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:59:05,225 INFO L185 Difference]: Start difference. First operand has 995 places, 2176 transitions, 86112 flow. Second operand 32 states and 2062 transitions. [2021-03-11 02:59:05,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1016 places, 2811 transitions, 116748 flow [2021-03-11 02:59:19,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 988 places, 2811 transitions, 114135 flow, removed 40 selfloop flow, removed 28 redundant places. [2021-03-11 02:59:19,324 INFO L241 Difference]: Finished difference. Result has 1001 places, 2448 transitions, 104038 flow [2021-03-11 02:59:19,326 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=84122, PETRI_DIFFERENCE_MINUEND_PLACES=957, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=723, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=104038, PETRI_PLACES=1001, PETRI_TRANSITIONS=2448} [2021-03-11 02:59:19,326 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 859 predicate places. [2021-03-11 02:59:19,326 INFO L480 AbstractCegarLoop]: Abstraction has has 1001 places, 2448 transitions, 104038 flow [2021-03-11 02:59:19,326 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 61.46153846153846) internal successors, (1598), 26 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:59:19,326 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:59:19,326 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:59:19,326 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-03-11 02:59:19,326 INFO L428 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:59:19,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:59:19,327 INFO L82 PathProgramCache]: Analyzing trace with hash 716446686, now seen corresponding path program 7 times [2021-03-11 02:59:19,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:59:19,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763627121] [2021-03-11 02:59:19,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:59:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:59:19,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:59:19,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:59:19,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:59:19,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 02:59:19,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:59:19,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 02:59:19,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:59:19,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 02:59:19,436 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-11 02:59:19,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:59:19,454 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-11 02:59:19,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:59:19,484 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-11 02:59:19,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 02:59:19,485 INFO L142 QuantifierPusher]: treesize reduction 29, result has 62.3 percent of original size [2021-03-11 02:59:19,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-11 02:59:19,516 INFO L142 QuantifierPusher]: treesize reduction 29, result has 62.3 percent of original size [2021-03-11 02:59:19,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-11 02:59:19,517 INFO L142 QuantifierPusher]: treesize reduction 29, result has 63.7 percent of original size [2021-03-11 02:59:19,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 02:59:19,552 INFO L142 QuantifierPusher]: treesize reduction 29, result has 63.7 percent of original size [2021-03-11 02:59:19,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 02:59:19,588 INFO L142 QuantifierPusher]: treesize reduction 29, result has 62.3 percent of original size [2021-03-11 02:59:19,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-11 02:59:19,589 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-11 02:59:19,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 02:59:19,605 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-11 02:59:19,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 02:59:19,621 INFO L142 QuantifierPusher]: treesize reduction 15, result has 63.4 percent of original size [2021-03-11 02:59:19,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:59:19,638 INFO L142 QuantifierPusher]: treesize reduction 22, result has 59.3 percent of original size [2021-03-11 02:59:19,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 02:59:19,658 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-11 02:59:19,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 02:59:19,681 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-11 02:59:19,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 02:59:19,694 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.9 percent of original size [2021-03-11 02:59:19,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 02:59:19,714 INFO L142 QuantifierPusher]: treesize reduction 15, result has 63.4 percent of original size [2021-03-11 02:59:19,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 02:59:19,739 INFO L142 QuantifierPusher]: treesize reduction 19, result has 61.2 percent of original size [2021-03-11 02:59:19,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 02:59:19,769 INFO L142 QuantifierPusher]: treesize reduction 19, result has 61.2 percent of original size [2021-03-11 02:59:19,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 02:59:19,798 INFO L142 QuantifierPusher]: treesize reduction 22, result has 51.1 percent of original size [2021-03-11 02:59:19,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:59:19,819 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-11 02:59:19,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 02:59:19,836 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-11 02:59:19,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 02:59:19,837 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-11 02:59:19,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:59:19,857 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 02:59:19,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:59:19,876 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 02:59:19,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 02:59:19,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:59:19,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:59:19,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:59:19,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:59:19,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:59:19,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 02:59:19,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:59:19,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:59:19,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:59:19,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763627121] [2021-03-11 02:59:19,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:59:19,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-11 02:59:19,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627774993] [2021-03-11 02:59:19,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-11 02:59:19,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:59:19,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-11 02:59:19,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-03-11 02:59:19,950 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 02:59:19,951 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1001 places, 2448 transitions, 104038 flow. Second operand has 26 states, 26 states have (on average 61.46153846153846) internal successors, (1598), 26 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:59:19,951 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:59:19,951 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 02:59:19,951 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:59:50,435 INFO L129 PetriNetUnfolder]: 7929/34898 cut-off events. [2021-03-11 02:59:50,435 INFO L130 PetriNetUnfolder]: For 1915289/1918247 co-relation queries the response was YES. [2021-03-11 02:59:52,026 INFO L84 FinitePrefix]: Finished finitePrefix Result has 241424 conditions, 34898 events. 7929/34898 cut-off events. For 1915289/1918247 co-relation queries the response was YES. Maximal size of possible extension queue 2339. Compared 532315 event pairs, 2615 based on Foata normal form. 1392/35487 useless extension candidates. Maximal degree in co-relation 241153. Up to 8223 conditions per place. [2021-03-11 02:59:52,122 INFO L132 encePairwiseOnDemand]: 125/156 looper letters, 1546 selfloop transitions, 1077 changer transitions 83/2869 dead transitions. [2021-03-11 02:59:52,122 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1021 places, 2869 transitions, 124226 flow [2021-03-11 02:59:52,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-11 02:59:52,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-03-11 02:59:52,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2014 transitions. [2021-03-11 02:59:52,124 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4164598842018197 [2021-03-11 02:59:52,124 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 2014 transitions. [2021-03-11 02:59:52,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 2014 transitions. [2021-03-11 02:59:52,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:59:52,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 2014 transitions. [2021-03-11 02:59:52,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 64.96774193548387) internal successors, (2014), 31 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:59:52,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 156.0) internal successors, (4992), 32 states have internal predecessors, (4992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:59:52,127 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 156.0) internal successors, (4992), 32 states have internal predecessors, (4992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:59:52,127 INFO L185 Difference]: Start difference. First operand has 1001 places, 2448 transitions, 104038 flow. Second operand 31 states and 2014 transitions. [2021-03-11 02:59:52,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1021 places, 2869 transitions, 124226 flow [2021-03-11 03:00:07,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1004 places, 2869 transitions, 123456 flow, removed 344 selfloop flow, removed 17 redundant places. [2021-03-11 03:00:07,746 INFO L241 Difference]: Finished difference. Result has 1015 places, 2513 transitions, 111124 flow [2021-03-11 03:00:07,748 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=103342, PETRI_DIFFERENCE_MINUEND_PLACES=974, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=997, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=111124, PETRI_PLACES=1015, PETRI_TRANSITIONS=2513} [2021-03-11 03:00:07,749 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 873 predicate places. [2021-03-11 03:00:07,749 INFO L480 AbstractCegarLoop]: Abstraction has has 1015 places, 2513 transitions, 111124 flow [2021-03-11 03:00:07,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 61.46153846153846) internal successors, (1598), 26 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 03:00:07,749 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 03:00:07,749 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 03:00:07,749 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-03-11 03:00:07,749 INFO L428 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 03:00:07,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 03:00:07,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1712295360, now seen corresponding path program 8 times [2021-03-11 03:00:07,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 03:00:07,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952202962] [2021-03-11 03:00:07,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 03:00:07,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 03:00:07,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:00:07,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 03:00:07,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:00:07,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 03:00:07,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:00:07,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 03:00:07,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:00:07,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 03:00:07,879 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-11 03:00:07,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 03:00:07,898 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-11 03:00:07,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 03:00:07,925 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-11 03:00:07,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 03:00:07,927 INFO L142 QuantifierPusher]: treesize reduction 20, result has 73.3 percent of original size [2021-03-11 03:00:07,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 03:00:07,965 INFO L142 QuantifierPusher]: treesize reduction 20, result has 73.3 percent of original size [2021-03-11 03:00:07,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 03:00:07,966 INFO L142 QuantifierPusher]: treesize reduction 20, result has 74.4 percent of original size [2021-03-11 03:00:07,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-11 03:00:08,009 INFO L142 QuantifierPusher]: treesize reduction 20, result has 74.4 percent of original size [2021-03-11 03:00:08,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-11 03:00:08,051 INFO L142 QuantifierPusher]: treesize reduction 20, result has 73.3 percent of original size [2021-03-11 03:00:08,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 03:00:08,052 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-11 03:00:08,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 03:00:08,069 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-11 03:00:08,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 03:00:08,086 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-11 03:00:08,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 03:00:08,103 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-11 03:00:08,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 03:00:08,123 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-11 03:00:08,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 03:00:08,148 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-11 03:00:08,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 03:00:08,162 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-11 03:00:08,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 03:00:08,184 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-11 03:00:08,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 03:00:08,207 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-11 03:00:08,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 03:00:08,227 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-11 03:00:08,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 03:00:08,251 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-11 03:00:08,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 03:00:08,267 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-11 03:00:08,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 03:00:08,289 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-11 03:00:08,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 03:00:08,310 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 03:00:08,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 03:00:08,331 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 03:00:08,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 03:00:08,332 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 03:00:08,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 03:00:08,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:00:08,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 03:00:08,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:00:08,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 03:00:08,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:00:08,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 03:00:08,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:00:08,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 03:00:08,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 03:00:08,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952202962] [2021-03-11 03:00:08,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 03:00:08,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-11 03:00:08,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87141911] [2021-03-11 03:00:08,408 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-11 03:00:08,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 03:00:08,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-11 03:00:08,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-03-11 03:00:08,409 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 03:00:08,410 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1015 places, 2513 transitions, 111124 flow. Second operand has 26 states, 26 states have (on average 61.46153846153846) internal successors, (1598), 26 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 03:00:08,410 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 03:00:08,410 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 03:00:08,410 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 03:00:43,837 INFO L129 PetriNetUnfolder]: 8469/37413 cut-off events. [2021-03-11 03:00:43,837 INFO L130 PetriNetUnfolder]: For 2096372/2099807 co-relation queries the response was YES. [2021-03-11 03:00:46,152 INFO L84 FinitePrefix]: Finished finitePrefix Result has 262941 conditions, 37413 events. 8469/37413 cut-off events. For 2096372/2099807 co-relation queries the response was YES. Maximal size of possible extension queue 2462. Compared 578643 event pairs, 3468 based on Foata normal form. 1181/37810 useless extension candidates. Maximal degree in co-relation 262666. Up to 15271 conditions per place. [2021-03-11 03:00:46,262 INFO L132 encePairwiseOnDemand]: 125/156 looper letters, 1619 selfloop transitions, 1071 changer transitions 26/2879 dead transitions. [2021-03-11 03:00:46,262 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1030 places, 2879 transitions, 127227 flow [2021-03-11 03:00:46,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-11 03:00:46,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2021-03-11 03:00:46,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 1891 transitions. [2021-03-11 03:00:46,264 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.41799292661361626 [2021-03-11 03:00:46,264 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 1891 transitions. [2021-03-11 03:00:46,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 1891 transitions. [2021-03-11 03:00:46,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 03:00:46,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 1891 transitions. [2021-03-11 03:00:46,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 65.20689655172414) internal successors, (1891), 29 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 03:00:46,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 156.0) internal successors, (4680), 30 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 03:00:46,267 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 156.0) internal successors, (4680), 30 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 03:00:46,267 INFO L185 Difference]: Start difference. First operand has 1015 places, 2513 transitions, 111124 flow. Second operand 29 states and 1891 transitions. [2021-03-11 03:00:46,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1030 places, 2879 transitions, 127227 flow [2021-03-11 03:01:04,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1009 places, 2879 transitions, 126713 flow, removed 88 selfloop flow, removed 21 redundant places. [2021-03-11 03:01:05,060 INFO L241 Difference]: Finished difference. Result has 1021 places, 2666 transitions, 118408 flow [2021-03-11 03:01:05,061 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=110674, PETRI_DIFFERENCE_MINUEND_PLACES=981, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2513, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=933, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1518, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=118408, PETRI_PLACES=1021, PETRI_TRANSITIONS=2666} [2021-03-11 03:01:05,062 INFO L335 CegarLoopForPetriNet]: 142 programPoint places, 879 predicate places. [2021-03-11 03:01:05,062 INFO L480 AbstractCegarLoop]: Abstraction has has 1021 places, 2666 transitions, 118408 flow [2021-03-11 03:01:05,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 61.46153846153846) internal successors, (1598), 26 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 03:01:05,062 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 03:01:05,062 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 03:01:05,062 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-03-11 03:01:05,062 INFO L428 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 03:01:05,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 03:01:05,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1879553848, now seen corresponding path program 9 times [2021-03-11 03:01:05,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 03:01:05,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683530332] [2021-03-11 03:01:05,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 03:01:05,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 03:01:05,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:01:05,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 03:01:05,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:01:05,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 03:01:05,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:01:05,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 03:01:05,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:01:05,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 03:01:05,190 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.5 percent of original size [2021-03-11 03:01:05,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 03:01:05,209 INFO L142 QuantifierPusher]: treesize reduction 20, result has 63.6 percent of original size [2021-03-11 03:01:05,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 03:01:05,237 INFO L142 QuantifierPusher]: treesize reduction 20, result has 74.0 percent of original size [2021-03-11 03:01:05,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 03:01:05,276 INFO L142 QuantifierPusher]: treesize reduction 13, result has 75.0 percent of original size [2021-03-11 03:01:05,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 03:01:05,292 INFO L142 QuantifierPusher]: treesize reduction 13, result has 72.9 percent of original size [2021-03-11 03:01:05,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 03:01:05,308 INFO L142 QuantifierPusher]: treesize reduction 13, result has 67.5 percent of original size [2021-03-11 03:01:05,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 03:01:05,324 INFO L142 QuantifierPusher]: treesize reduction 21, result has 61.1 percent of original size [2021-03-11 03:01:05,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 03:01:05,344 INFO L142 QuantifierPusher]: treesize reduction 22, result has 64.5 percent of original size [2021-03-11 03:01:05,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 03:01:05,368 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-11 03:01:05,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 03:01:05,382 INFO L142 QuantifierPusher]: treesize reduction 22, result has 56.9 percent of original size [2021-03-11 03:01:05,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 03:01:05,402 INFO L142 QuantifierPusher]: treesize reduction 22, result has 56.9 percent of original size [2021-03-11 03:01:05,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 03:01:05,424 INFO L142 QuantifierPusher]: treesize reduction 28, result has 47.2 percent of original size [2021-03-11 03:01:05,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 03:01:05,446 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-11 03:01:05,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-11 03:01:05,471 INFO L142 QuantifierPusher]: treesize reduction 16, result has 68.0 percent of original size [2021-03-11 03:01:05,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 03:01:05,488 INFO L142 QuantifierPusher]: treesize reduction 46, result has 37.0 percent of original size [2021-03-11 03:01:05,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 03:01:05,520 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-11 03:01:05,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 03:01:05,539 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-11 03:01:05,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 03:01:05,561 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-11 03:01:05,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 03:01:05,562 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 03:01:05,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 03:01:05,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:01:05,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 03:01:05,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:01:05,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 03:01:05,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:01:05,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 03:01:05,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 03:01:05,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 03:01:05,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 03:01:05,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683530332] [2021-03-11 03:01:05,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 03:01:05,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-03-11 03:01:05,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409338630] [2021-03-11 03:01:05,631 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-11 03:01:05,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 03:01:05,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-11 03:01:05,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2021-03-11 03:01:05,632 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-03-11 03:01:05,632 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1021 places, 2666 transitions, 118408 flow. Second operand has 24 states, 24 states have (on average 61.666666666666664) internal successors, (1480), 24 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 03:01:05,632 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 03:01:05,632 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-03-11 03:01:05,632 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 03:01:47,597 INFO L129 PetriNetUnfolder]: 8647/38756 cut-off events. [2021-03-11 03:01:47,598 INFO L130 PetriNetUnfolder]: For 2212753/2216682 co-relation queries the response was YES. [2021-03-11 03:01:50,120 INFO L84 FinitePrefix]: Finished finitePrefix Result has 276237 conditions, 38756 events. 8647/38756 cut-off events. For 2212753/2216682 co-relation queries the response was YES. Maximal size of possible extension queue 2566. Compared 607062 event pairs, 2992 based on Foata normal form. 1200/39192 useless extension candidates. Maximal degree in co-relation 275958. Up to 9357 conditions per place. [2021-03-11 03:01:50,232 INFO L132 encePairwiseOnDemand]: 125/156 looper letters, 1845 selfloop transitions, 1052 changer transitions 47/3107 dead transitions. [2021-03-11 03:01:50,233 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1044 places, 3107 transitions, 138407 flow [2021-03-11 03:01:50,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-11 03:01:50,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-03-11 03:01:50,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2026 transitions. [2021-03-11 03:01:50,234 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.41894127377998347 [2021-03-11 03:01:50,234 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 2026 transitions. [2021-03-11 03:01:50,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 2026 transitions. [2021-03-11 03:01:50,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 03:01:50,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 2026 transitions. [2021-03-11 03:01:50,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 65.35483870967742) internal successors, (2026), 31 states have internal predecessors, (2026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 03:01:50,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 156.0) internal successors, (4992), 32 states have internal predecessors, (4992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 03:01:50,238 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 156.0) internal successors, (4992), 32 states have internal predecessors, (4992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 03:01:50,238 INFO L185 Difference]: Start difference. First operand has 1021 places, 2666 transitions, 118408 flow. Second operand 31 states and 2026 transitions. [2021-03-11 03:01:50,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1044 places, 3107 transitions, 138407 flow Received shutdown request... [2021-03-11 03:01:54,873 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-03-11 03:01:54,873 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-11 03:01:54,876 WARN L224 ceAbstractionStarter]: Timeout [2021-03-11 03:01:54,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 03:01:54 BasicIcfg [2021-03-11 03:01:54,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 03:01:54,877 INFO L168 Benchmark]: Toolchain (without parser) took 787977.36 ms. Allocated memory was 325.1 MB in the beginning and 13.2 GB in the end (delta: 12.8 GB). Free memory was 286.6 MB in the beginning and 8.4 GB in the end (delta: -8.2 GB). Peak memory consumption was 4.7 GB. Max. memory is 16.0 GB. [2021-03-11 03:01:54,877 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 325.1 MB. Free memory was 306.4 MB in the beginning and 306.3 MB in the end (delta: 71.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 03:01:54,877 INFO L168 Benchmark]: CACSL2BoogieTranslator took 840.60 ms. Allocated memory is still 325.1 MB. Free memory was 286.0 MB in the beginning and 276.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 83.6 MB. Max. memory is 16.0 GB. [2021-03-11 03:01:54,877 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.29 ms. Allocated memory is still 325.1 MB. Free memory was 276.8 MB in the beginning and 273.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-11 03:01:54,877 INFO L168 Benchmark]: Boogie Preprocessor took 32.12 ms. Allocated memory is still 325.1 MB. Free memory was 273.4 MB in the beginning and 270.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 03:01:54,877 INFO L168 Benchmark]: RCFGBuilder took 434.90 ms. Allocated memory is still 325.1 MB. Free memory was 270.5 MB in the beginning and 222.3 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. [2021-03-11 03:01:54,877 INFO L168 Benchmark]: TraceAbstraction took 786614.40 ms. Allocated memory was 325.1 MB in the beginning and 13.2 GB in the end (delta: 12.8 GB). Free memory was 222.3 MB in the beginning and 8.4 GB in the end (delta: -8.2 GB). Peak memory consumption was 4.7 GB. Max. memory is 16.0 GB. [2021-03-11 03:01:54,877 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 325.1 MB. Free memory was 306.4 MB in the beginning and 306.3 MB in the end (delta: 71.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 840.60 ms. Allocated memory is still 325.1 MB. Free memory was 286.0 MB in the beginning and 276.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 83.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 39.29 ms. Allocated memory is still 325.1 MB. Free memory was 276.8 MB in the beginning and 273.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.12 ms. Allocated memory is still 325.1 MB. Free memory was 273.4 MB in the beginning and 270.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 434.90 ms. Allocated memory is still 325.1 MB. Free memory was 270.5 MB in the beginning and 222.3 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 786614.40 ms. Allocated memory was 325.1 MB in the beginning and 13.2 GB in the end (delta: 12.8 GB). Free memory was 222.3 MB in the beginning and 8.4 GB in the end (delta: -8.2 GB). Peak memory consumption was 4.7 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1675). Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1675). Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1675). Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1675). Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1675). Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1675). Cancelled while executing RemoveRedundantFlow. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 136 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: TIMEOUT, OverallTime: 786496.6ms, OverallIterations: 59, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 767268.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 77.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4467 SDtfs, 19016 SDslu, 27222 SDs, 0 SdLazy, 43220 SolverSat, 2994 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20211.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2192 GetRequests, 225 SyntacticMatches, 54 SemanticMatches, 1913 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10562 ImplicationChecksByTransitivity, 57590.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=118408occurred in iteration=58, InterpolantAutomatonStates: 1233, 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: 127.5ms SsaConstructionTime, 718.7ms SatisfiabilityAnalysisTime, 17794.6ms InterpolantComputationTime, 5682 NumberOfCodeBlocks, 5682 NumberOfCodeBlocksAsserted, 59 NumberOfCheckSat, 5623 ConstructedInterpolants, 0 QuantifiedInterpolants, 78488 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 59 InterpolantComputations, 59 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown