/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 20:10:11,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 20:10:11,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 20:10:11,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 20:10:11,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 20:10:11,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 20:10:11,732 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 20:10:11,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 20:10:11,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 20:10:11,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 20:10:11,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 20:10:11,745 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 20:10:11,745 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 20:10:11,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 20:10:11,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 20:10:11,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 20:10:11,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 20:10:11,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 20:10:11,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 20:10:11,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 20:10:11,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 20:10:11,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 20:10:11,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 20:10:11,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 20:10:11,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 20:10:11,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 20:10:11,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 20:10:11,779 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 20:10:11,779 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 20:10:11,780 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 20:10:11,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 20:10:11,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 20:10:11,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 20:10:11,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 20:10:11,782 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 20:10:11,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 20:10:11,783 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-SemanticLbe.epf [2021-03-24 20:10:11,817 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 20:10:11,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 20:10:11,821 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 20:10:11,821 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 20:10:11,821 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 20:10:11,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 20:10:11,822 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 20:10:11,822 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 20:10:11,822 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 20:10:11,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 20:10:11,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 20:10:11,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 20:10:11,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 20:10:11,824 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 20:10:11,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 20:10:11,824 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 20:10:11,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 20:10:11,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 20:10:11,824 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 20:10:11,825 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 20:10:11,825 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 20:10:11,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 20:10:11,825 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 20:10:11,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 20:10:11,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 20:10:11,826 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 20:10:11,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 20:10:11,826 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 20:10:11,826 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 20:10:12,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 20:10:12,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 20:10:12,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 20:10:12,202 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 20:10:12,202 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 20:10:12,203 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2021-03-24 20:10:12,264 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/725937c77/08a3ab374f4a4392a65c95e8f2c8008e/FLAG8cba3f3e7 [2021-03-24 20:10:12,810 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 20:10:12,810 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2021-03-24 20:10:12,832 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/725937c77/08a3ab374f4a4392a65c95e8f2c8008e/FLAG8cba3f3e7 [2021-03-24 20:10:13,063 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/725937c77/08a3ab374f4a4392a65c95e8f2c8008e [2021-03-24 20:10:13,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 20:10:13,066 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 20:10:13,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 20:10:13,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 20:10:13,073 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 20:10:13,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 08:10:13" (1/1) ... [2021-03-24 20:10:13,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7670b740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 08:10:13, skipping insertion in model container [2021-03-24 20:10:13,075 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 08:10:13" (1/1) ... [2021-03-24 20:10:13,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 20:10:13,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 20:10:13,608 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_1-container_of-global.i[76084,76097] [2021-03-24 20:10:13,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 20:10:13,632 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 20:10:13,666 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_1-container_of-global.i[76084,76097] [2021-03-24 20:10:13,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 20:10:13,983 INFO L208 MainTranslator]: Completed translation [2021-03-24 20:10:13,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 08:10:13 WrapperNode [2021-03-24 20:10:13,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 20:10:13,985 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 20:10:13,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 20:10:13,986 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 20:10:13,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 08:10:13" (1/1) ... [2021-03-24 20:10:14,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 08:10:13" (1/1) ... [2021-03-24 20:10:14,072 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 20:10:14,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 20:10:14,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 20:10:14,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 20:10:14,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 08:10:13" (1/1) ... [2021-03-24 20:10:14,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 08:10:13" (1/1) ... [2021-03-24 20:10:14,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 08:10:13" (1/1) ... [2021-03-24 20:10:14,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 08:10:13" (1/1) ... [2021-03-24 20:10:14,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 08:10:13" (1/1) ... [2021-03-24 20:10:14,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 08:10:13" (1/1) ... [2021-03-24 20:10:14,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 08:10:13" (1/1) ... [2021-03-24 20:10:14,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 20:10:14,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 20:10:14,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 20:10:14,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 20:10:14,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 08:10:13" (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 [2021-03-24 20:10:14,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 20:10:14,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-24 20:10:14,222 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-24 20:10:14,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-03-24 20:10:14,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 20:10:14,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 20:10:14,223 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-03-24 20:10:14,224 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-03-24 20:10:14,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 20:10:14,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 20:10:14,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 20:10:14,226 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 20:10:14,707 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 20:10:14,707 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-03-24 20:10:14,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 08:10:14 BoogieIcfgContainer [2021-03-24 20:10:14,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 20:10:14,709 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 20:10:14,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 20:10:14,712 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 20:10:14,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 08:10:13" (1/3) ... [2021-03-24 20:10:14,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e86bfa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 08:10:14, skipping insertion in model container [2021-03-24 20:10:14,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 08:10:13" (2/3) ... [2021-03-24 20:10:14,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e86bfa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 08:10:14, skipping insertion in model container [2021-03-24 20:10:14,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 08:10:14" (3/3) ... [2021-03-24 20:10:14,714 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2021-03-24 20:10:14,719 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 20:10:14,722 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-03-24 20:10:14,723 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 20:10:14,748 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,748 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,748 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,748 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,749 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,749 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,749 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,749 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,749 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,749 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,749 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,749 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,751 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,751 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,751 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,751 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,751 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,751 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,751 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,751 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,752 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,752 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,752 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,752 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,752 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,752 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,752 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,753 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,753 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,753 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,753 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,753 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,753 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,754 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,754 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,754 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,754 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,754 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,754 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,754 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,754 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,755 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,755 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,755 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,755 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,755 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,755 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,756 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,756 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,756 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,756 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,756 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,756 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,756 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,756 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,756 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,757 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,757 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,757 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,757 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,757 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,757 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,757 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,757 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,757 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,758 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,758 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,758 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,758 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,758 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,758 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,758 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,758 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,759 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,759 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,760 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,760 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,760 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,760 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,760 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,760 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,761 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,761 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,761 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,761 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,761 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,761 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,761 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,762 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,762 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,762 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,762 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,762 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,762 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,762 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,763 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,764 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,766 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,767 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,767 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,767 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,772 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,772 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,773 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,773 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,773 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,773 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,773 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,773 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,775 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,775 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,775 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,775 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,776 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,776 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,776 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,776 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,776 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,776 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,780 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,780 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,780 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,780 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,780 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,780 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,781 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,781 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,781 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,781 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:10:14,791 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-24 20:10:14,807 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-03-24 20:10:14,833 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 20:10:14,833 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 20:10:14,833 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 20:10:14,833 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 20:10:14,833 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 20:10:14,833 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 20:10:14,833 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 20:10:14,834 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 20:10:14,849 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 160 places, 164 transitions, 350 flow [2021-03-24 20:10:14,941 INFO L129 PetriNetUnfolder]: 11/204 cut-off events. [2021-03-24 20:10:14,942 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-24 20:10:14,946 INFO L84 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 204 events. 11/204 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 407 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 115. Up to 4 conditions per place. [2021-03-24 20:10:14,946 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 164 transitions, 350 flow [2021-03-24 20:10:14,966 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 152 transitions, 322 flow [2021-03-24 20:10:14,968 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-24 20:10:14,980 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 152 transitions, 322 flow [2021-03-24 20:10:14,983 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 152 transitions, 322 flow [2021-03-24 20:10:14,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 150 places, 152 transitions, 322 flow [2021-03-24 20:10:15,039 INFO L129 PetriNetUnfolder]: 8/185 cut-off events. [2021-03-24 20:10:15,039 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-24 20:10:15,041 INFO L84 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 185 events. 8/185 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 343 event pairs, 0 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 105. Up to 4 conditions per place. [2021-03-24 20:10:15,045 INFO L142 LiptonReduction]: Number of co-enabled transitions 2288 [2021-03-24 20:10:33,869 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2021-03-24 20:10:56,172 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-03-24 20:11:06,374 INFO L154 LiptonReduction]: Checked pairs total: 3162 [2021-03-24 20:11:06,374 INFO L156 LiptonReduction]: Total number of compositions: 115 [2021-03-24 20:11:06,376 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 51409 [2021-03-24 20:11:06,382 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2021-03-24 20:11:06,383 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 20:11:06,383 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:06,383 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:06,383 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]=== [2021-03-24 20:11:06,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:06,387 INFO L82 PathProgramCache]: Analyzing trace with hash -399348905, now seen corresponding path program 1 times [2021-03-24 20:11:06,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:06,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082650967] [2021-03-24 20:11:06,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:06,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:06,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:06,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:06,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 20:11:06,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:06,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082650967] [2021-03-24 20:11:06,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:06,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 20:11:06,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370138298] [2021-03-24 20:11:06,727 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 20:11:06,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:06,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 20:11:06,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 20:11:06,739 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 279 [2021-03-24 20:11:06,742 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 65 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:06,743 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:06,743 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 279 [2021-03-24 20:11:06,744 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:06,761 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2021-03-24 20:11:06,761 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-24 20:11:06,761 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 70 events. 2/70 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 139 event pairs, 0 based on Foata normal form. 4/64 useless extension candidates. Maximal degree in co-relation 69. Up to 3 conditions per place. [2021-03-24 20:11:06,762 INFO L132 encePairwiseOnDemand]: 272/279 looper letters, 2 selfloop transitions, 2 changer transitions 2/58 dead transitions. [2021-03-24 20:11:06,762 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 58 transitions, 142 flow [2021-03-24 20:11:06,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 20:11:06,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 20:11:06,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 729 transitions. [2021-03-24 20:11:06,775 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8709677419354839 [2021-03-24 20:11:06,776 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 729 transitions. [2021-03-24 20:11:06,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 729 transitions. [2021-03-24 20:11:06,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:06,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 729 transitions. [2021-03-24 20:11:06,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:06,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:06,792 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:06,794 INFO L185 Difference]: Start difference. First operand has 64 places, 65 transitions, 148 flow. Second operand 3 states and 729 transitions. [2021-03-24 20:11:06,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 58 transitions, 142 flow [2021-03-24 20:11:06,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 58 transitions, 130 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-24 20:11:06,798 INFO L241 Difference]: Finished difference. Result has 59 places, 56 transitions, 122 flow [2021-03-24 20:11:06,800 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=59, PETRI_TRANSITIONS=56} [2021-03-24 20:11:06,800 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, -5 predicate places. [2021-03-24 20:11:06,800 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 56 transitions, 122 flow [2021-03-24 20:11:06,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:06,801 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:06,801 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:06,801 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 20:11:06,801 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]=== [2021-03-24 20:11:06,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:06,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1522193569, now seen corresponding path program 1 times [2021-03-24 20:11:06,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:06,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886728356] [2021-03-24 20:11:06,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:06,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:06,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:06,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:06,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:06,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 20:11:06,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:06,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 20:11:06,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:06,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886728356] [2021-03-24 20:11:06,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:06,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 20:11:06,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033533596] [2021-03-24 20:11:06,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 20:11:06,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:06,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 20:11:06,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 20:11:06,934 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 279 [2021-03-24 20:11:06,935 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 56 transitions, 122 flow. Second operand has 4 states, 4 states have (on average 160.75) internal successors, (643), 4 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:06,935 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:06,936 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 279 [2021-03-24 20:11:06,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:07,082 INFO L129 PetriNetUnfolder]: 243/519 cut-off events. [2021-03-24 20:11:07,083 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 20:11:07,086 INFO L84 FinitePrefix]: Finished finitePrefix Result has 973 conditions, 519 events. 243/519 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2602 event pairs, 117 based on Foata normal form. 0/477 useless extension candidates. Maximal degree in co-relation 953. Up to 223 conditions per place. [2021-03-24 20:11:07,090 INFO L132 encePairwiseOnDemand]: 270/279 looper letters, 38 selfloop transitions, 8 changer transitions 1/69 dead transitions. [2021-03-24 20:11:07,091 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 69 transitions, 242 flow [2021-03-24 20:11:07,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 20:11:07,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 20:11:07,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 843 transitions. [2021-03-24 20:11:07,095 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6043010752688172 [2021-03-24 20:11:07,095 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 843 transitions. [2021-03-24 20:11:07,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 843 transitions. [2021-03-24 20:11:07,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:07,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 843 transitions. [2021-03-24 20:11:07,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 168.6) internal successors, (843), 5 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:07,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 279.0) internal successors, (1674), 6 states have internal predecessors, (1674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:07,104 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 279.0) internal successors, (1674), 6 states have internal predecessors, (1674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:07,104 INFO L185 Difference]: Start difference. First operand has 59 places, 56 transitions, 122 flow. Second operand 5 states and 843 transitions. [2021-03-24 20:11:07,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 69 transitions, 242 flow [2021-03-24 20:11:07,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 69 transitions, 238 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 20:11:07,106 INFO L241 Difference]: Finished difference. Result has 60 places, 60 transitions, 162 flow [2021-03-24 20:11:07,106 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=162, PETRI_PLACES=60, PETRI_TRANSITIONS=60} [2021-03-24 20:11:07,107 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, -4 predicate places. [2021-03-24 20:11:07,107 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 60 transitions, 162 flow [2021-03-24 20:11:07,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 160.75) internal successors, (643), 4 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:07,107 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:07,108 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:07,108 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 20:11:07,108 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]=== [2021-03-24 20:11:07,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:07,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1074180406, now seen corresponding path program 1 times [2021-03-24 20:11:07,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:07,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664444634] [2021-03-24 20:11:07,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:07,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:07,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:07,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:07,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:11:07,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:07,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 20:11:07,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:07,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 20:11:07,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:07,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664444634] [2021-03-24 20:11:07,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:07,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 20:11:07,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485956865] [2021-03-24 20:11:07,234 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 20:11:07,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:07,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 20:11:07,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 20:11:07,236 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 279 [2021-03-24 20:11:07,237 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 60 transitions, 162 flow. Second operand has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:07,237 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:07,237 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 279 [2021-03-24 20:11:07,237 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:07,430 INFO L129 PetriNetUnfolder]: 387/806 cut-off events. [2021-03-24 20:11:07,431 INFO L130 PetriNetUnfolder]: For 119/124 co-relation queries the response was YES. [2021-03-24 20:11:07,432 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1747 conditions, 806 events. 387/806 cut-off events. For 119/124 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4473 event pairs, 125 based on Foata normal form. 32/829 useless extension candidates. Maximal degree in co-relation 710. Up to 493 conditions per place. [2021-03-24 20:11:07,435 INFO L132 encePairwiseOnDemand]: 271/279 looper letters, 42 selfloop transitions, 7 changer transitions 14/84 dead transitions. [2021-03-24 20:11:07,435 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 84 transitions, 348 flow [2021-03-24 20:11:07,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 20:11:07,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 20:11:07,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 820 transitions. [2021-03-24 20:11:07,438 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5878136200716846 [2021-03-24 20:11:07,438 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 820 transitions. [2021-03-24 20:11:07,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 820 transitions. [2021-03-24 20:11:07,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:07,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 820 transitions. [2021-03-24 20:11:07,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:07,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 279.0) internal successors, (1674), 6 states have internal predecessors, (1674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:07,444 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 279.0) internal successors, (1674), 6 states have internal predecessors, (1674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:07,444 INFO L185 Difference]: Start difference. First operand has 60 places, 60 transitions, 162 flow. Second operand 5 states and 820 transitions. [2021-03-24 20:11:07,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 84 transitions, 348 flow [2021-03-24 20:11:07,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 84 transitions, 340 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 20:11:07,449 INFO L241 Difference]: Finished difference. Result has 65 places, 63 transitions, 205 flow [2021-03-24 20:11:07,450 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=205, PETRI_PLACES=65, PETRI_TRANSITIONS=63} [2021-03-24 20:11:07,450 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 1 predicate places. [2021-03-24 20:11:07,450 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 63 transitions, 205 flow [2021-03-24 20:11:07,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:07,450 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:07,451 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:07,451 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 20:11:07,451 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]=== [2021-03-24 20:11:07,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:07,451 INFO L82 PathProgramCache]: Analyzing trace with hash 747513475, now seen corresponding path program 1 times [2021-03-24 20:11:07,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:07,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562454201] [2021-03-24 20:11:07,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:07,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:07,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:07,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:07,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 20:11:07,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:07,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 20:11:07,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:07,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562454201] [2021-03-24 20:11:07,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:07,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 20:11:07,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985009963] [2021-03-24 20:11:07,534 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 20:11:07,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:07,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 20:11:07,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 20:11:07,536 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 279 [2021-03-24 20:11:07,537 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 63 transitions, 205 flow. Second operand has 4 states, 4 states have (on average 155.5) internal successors, (622), 4 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:07,537 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:07,537 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 279 [2021-03-24 20:11:07,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:07,734 INFO L129 PetriNetUnfolder]: 455/934 cut-off events. [2021-03-24 20:11:07,734 INFO L130 PetriNetUnfolder]: For 892/904 co-relation queries the response was YES. [2021-03-24 20:11:07,736 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2728 conditions, 934 events. 455/934 cut-off events. For 892/904 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 5377 event pairs, 141 based on Foata normal form. 47/972 useless extension candidates. Maximal degree in co-relation 2450. Up to 542 conditions per place. [2021-03-24 20:11:07,741 INFO L132 encePairwiseOnDemand]: 272/279 looper letters, 43 selfloop transitions, 9 changer transitions 25/94 dead transitions. [2021-03-24 20:11:07,741 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 94 transitions, 505 flow [2021-03-24 20:11:07,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 20:11:07,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 20:11:07,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 819 transitions. [2021-03-24 20:11:07,744 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5870967741935483 [2021-03-24 20:11:07,744 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 819 transitions. [2021-03-24 20:11:07,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 819 transitions. [2021-03-24 20:11:07,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:07,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 819 transitions. [2021-03-24 20:11:07,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 163.8) internal successors, (819), 5 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:07,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 279.0) internal successors, (1674), 6 states have internal predecessors, (1674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:07,749 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 279.0) internal successors, (1674), 6 states have internal predecessors, (1674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:07,749 INFO L185 Difference]: Start difference. First operand has 65 places, 63 transitions, 205 flow. Second operand 5 states and 819 transitions. [2021-03-24 20:11:07,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 94 transitions, 505 flow [2021-03-24 20:11:07,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 94 transitions, 480 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-24 20:11:07,756 INFO L241 Difference]: Finished difference. Result has 68 places, 63 transitions, 275 flow [2021-03-24 20:11:07,756 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=275, PETRI_PLACES=68, PETRI_TRANSITIONS=63} [2021-03-24 20:11:07,756 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 4 predicate places. [2021-03-24 20:11:07,756 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 63 transitions, 275 flow [2021-03-24 20:11:07,757 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 155.5) internal successors, (622), 4 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:07,757 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:07,757 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:07,757 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 20:11:07,757 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]=== [2021-03-24 20:11:07,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:07,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1056690672, now seen corresponding path program 1 times [2021-03-24 20:11:07,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:07,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615509690] [2021-03-24 20:11:07,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:07,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:07,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:07,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:07,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:07,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 20:11:07,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:07,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:07,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:07,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615509690] [2021-03-24 20:11:07,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:07,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 20:11:07,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527012496] [2021-03-24 20:11:07,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 20:11:07,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:07,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 20:11:07,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 20:11:07,822 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 279 [2021-03-24 20:11:07,823 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 63 transitions, 275 flow. Second operand has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:07,823 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:07,824 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 279 [2021-03-24 20:11:07,824 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:07,835 INFO L129 PetriNetUnfolder]: 6/65 cut-off events. [2021-03-24 20:11:07,835 INFO L130 PetriNetUnfolder]: For 83/103 co-relation queries the response was YES. [2021-03-24 20:11:07,835 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 65 events. 6/65 cut-off events. For 83/103 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 139 event pairs, 4 based on Foata normal form. 15/78 useless extension candidates. Maximal degree in co-relation 133. Up to 14 conditions per place. [2021-03-24 20:11:07,835 INFO L132 encePairwiseOnDemand]: 277/279 looper letters, 3 selfloop transitions, 1 changer transitions 0/42 dead transitions. [2021-03-24 20:11:07,836 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 42 transitions, 146 flow [2021-03-24 20:11:07,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 20:11:07,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 20:11:07,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 710 transitions. [2021-03-24 20:11:07,837 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8482676224611708 [2021-03-24 20:11:07,838 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 710 transitions. [2021-03-24 20:11:07,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 710 transitions. [2021-03-24 20:11:07,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:07,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 710 transitions. [2021-03-24 20:11:07,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 236.66666666666666) internal successors, (710), 3 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:07,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:07,842 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:07,842 INFO L185 Difference]: Start difference. First operand has 68 places, 63 transitions, 275 flow. Second operand 3 states and 710 transitions. [2021-03-24 20:11:07,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 42 transitions, 146 flow [2021-03-24 20:11:07,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 42 transitions, 116 flow, removed 12 selfloop flow, removed 5 redundant places. [2021-03-24 20:11:07,845 INFO L241 Difference]: Finished difference. Result has 48 places, 42 transitions, 110 flow [2021-03-24 20:11:07,846 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=48, PETRI_TRANSITIONS=42} [2021-03-24 20:11:07,846 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, -16 predicate places. [2021-03-24 20:11:07,846 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 110 flow [2021-03-24 20:11:07,846 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:07,846 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:07,846 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:07,846 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 20:11:07,846 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]=== [2021-03-24 20:11:07,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:07,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1408228099, now seen corresponding path program 1 times [2021-03-24 20:11:07,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:07,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844215394] [2021-03-24 20:11:07,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:07,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:08,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:08,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:08,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:08,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:08,121 INFO L142 QuantifierPusher]: treesize reduction 42, result has 26.3 percent of original size [2021-03-24 20:11:08,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:08,136 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 20:11:08,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:08,153 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:08,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:08,175 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 20:11:08,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:11:08,197 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.6 percent of original size [2021-03-24 20:11:08,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:08,210 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 20:11:08,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:11:08,214 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-24 20:11:08,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:11:08,238 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-24 20:11:08,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:11:08,258 INFO L142 QuantifierPusher]: treesize reduction 14, result has 72.0 percent of original size [2021-03-24 20:11:08,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:11:08,307 INFO L142 QuantifierPusher]: treesize reduction 14, result has 74.5 percent of original size [2021-03-24 20:11:08,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:11:08,347 INFO L142 QuantifierPusher]: treesize reduction 12, result has 80.0 percent of original size [2021-03-24 20:11:08,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-24 20:11:08,382 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:11:08,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:08,416 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 20:11:08,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:08,439 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 20:11:08,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:08,440 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:08,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:08,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:08,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 20:11:08,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:08,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844215394] [2021-03-24 20:11:08,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:08,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-24 20:11:08,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677764243] [2021-03-24 20:11:08,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-24 20:11:08,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:08,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-24 20:11:08,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-03-24 20:11:08,482 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 279 [2021-03-24 20:11:08,483 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 42 transitions, 110 flow. Second operand has 16 states, 16 states have (on average 106.875) internal successors, (1710), 16 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:08,484 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:08,484 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 279 [2021-03-24 20:11:08,484 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:09,300 INFO L129 PetriNetUnfolder]: 195/466 cut-off events. [2021-03-24 20:11:09,300 INFO L130 PetriNetUnfolder]: For 94/94 co-relation queries the response was YES. [2021-03-24 20:11:09,301 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1048 conditions, 466 events. 195/466 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2247 event pairs, 11 based on Foata normal form. 0/462 useless extension candidates. Maximal degree in co-relation 1041. Up to 118 conditions per place. [2021-03-24 20:11:09,303 INFO L132 encePairwiseOnDemand]: 266/279 looper letters, 64 selfloop transitions, 15 changer transitions 0/87 dead transitions. [2021-03-24 20:11:09,303 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 87 transitions, 388 flow [2021-03-24 20:11:09,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 20:11:09,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 20:11:09,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1128 transitions. [2021-03-24 20:11:09,307 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4043010752688172 [2021-03-24 20:11:09,307 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1128 transitions. [2021-03-24 20:11:09,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1128 transitions. [2021-03-24 20:11:09,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:09,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1128 transitions. [2021-03-24 20:11:09,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 112.8) internal successors, (1128), 10 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:09,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 279.0) internal successors, (3069), 11 states have internal predecessors, (3069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:09,316 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 279.0) internal successors, (3069), 11 states have internal predecessors, (3069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:09,316 INFO L185 Difference]: Start difference. First operand has 48 places, 42 transitions, 110 flow. Second operand 10 states and 1128 transitions. [2021-03-24 20:11:09,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 87 transitions, 388 flow [2021-03-24 20:11:09,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 87 transitions, 387 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 20:11:09,318 INFO L241 Difference]: Finished difference. Result has 59 places, 51 transitions, 190 flow [2021-03-24 20:11:09,318 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=190, PETRI_PLACES=59, PETRI_TRANSITIONS=51} [2021-03-24 20:11:09,318 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, -5 predicate places. [2021-03-24 20:11:09,318 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 51 transitions, 190 flow [2021-03-24 20:11:09,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 106.875) internal successors, (1710), 16 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:09,319 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:09,319 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:09,319 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 20:11:09,319 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]=== [2021-03-24 20:11:09,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:09,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1165391075, now seen corresponding path program 2 times [2021-03-24 20:11:09,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:09,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404484017] [2021-03-24 20:11:09,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:09,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:09,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:09,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:09,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:09,487 INFO L142 QuantifierPusher]: treesize reduction 42, result has 26.3 percent of original size [2021-03-24 20:11:09,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:09,498 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 20:11:09,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:09,510 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:09,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:09,530 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 20:11:09,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:09,569 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.4 percent of original size [2021-03-24 20:11:09,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:11:09,616 INFO L142 QuantifierPusher]: treesize reduction 14, result has 78.1 percent of original size [2021-03-24 20:11:09,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:11:09,634 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.9 percent of original size [2021-03-24 20:11:09,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:11:09,649 INFO L142 QuantifierPusher]: treesize reduction 12, result has 71.4 percent of original size [2021-03-24 20:11:09,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:11:09,689 INFO L142 QuantifierPusher]: treesize reduction 8, result has 78.9 percent of original size [2021-03-24 20:11:09,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:11:09,691 INFO L142 QuantifierPusher]: treesize reduction 14, result has 72.0 percent of original size [2021-03-24 20:11:09,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:11:09,729 INFO L142 QuantifierPusher]: treesize reduction 14, result has 74.5 percent of original size [2021-03-24 20:11:09,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:11:09,767 INFO L142 QuantifierPusher]: treesize reduction 12, result has 80.0 percent of original size [2021-03-24 20:11:09,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-24 20:11:09,801 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:11:09,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:09,834 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 20:11:09,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:09,856 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:09,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:09,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:09,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 20:11:09,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:09,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404484017] [2021-03-24 20:11:09,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:09,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-24 20:11:09,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231292384] [2021-03-24 20:11:09,892 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-24 20:11:09,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:09,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-24 20:11:09,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-03-24 20:11:09,896 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 279 [2021-03-24 20:11:09,898 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 51 transitions, 190 flow. Second operand has 16 states, 16 states have (on average 106.875) internal successors, (1710), 16 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:09,898 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:09,898 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 279 [2021-03-24 20:11:09,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:10,930 INFO L129 PetriNetUnfolder]: 336/860 cut-off events. [2021-03-24 20:11:10,930 INFO L130 PetriNetUnfolder]: For 598/602 co-relation queries the response was YES. [2021-03-24 20:11:10,932 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2325 conditions, 860 events. 336/860 cut-off events. For 598/602 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 5410 event pairs, 33 based on Foata normal form. 1/859 useless extension candidates. Maximal degree in co-relation 2315. Up to 205 conditions per place. [2021-03-24 20:11:10,936 INFO L132 encePairwiseOnDemand]: 265/279 looper letters, 97 selfloop transitions, 28 changer transitions 0/133 dead transitions. [2021-03-24 20:11:10,936 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 133 transitions, 784 flow [2021-03-24 20:11:10,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 20:11:10,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 20:11:10,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1361 transitions. [2021-03-24 20:11:10,940 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40651135005973715 [2021-03-24 20:11:10,940 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1361 transitions. [2021-03-24 20:11:10,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1361 transitions. [2021-03-24 20:11:10,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:10,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1361 transitions. [2021-03-24 20:11:10,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 113.41666666666667) internal successors, (1361), 12 states have internal predecessors, (1361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:10,948 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 279.0) internal successors, (3627), 13 states have internal predecessors, (3627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:10,949 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 279.0) internal successors, (3627), 13 states have internal predecessors, (3627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:10,949 INFO L185 Difference]: Start difference. First operand has 59 places, 51 transitions, 190 flow. Second operand 12 states and 1361 transitions. [2021-03-24 20:11:10,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 133 transitions, 784 flow [2021-03-24 20:11:10,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 133 transitions, 769 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-24 20:11:10,954 INFO L241 Difference]: Finished difference. Result has 71 places, 70 transitions, 377 flow [2021-03-24 20:11:10,955 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=377, PETRI_PLACES=71, PETRI_TRANSITIONS=70} [2021-03-24 20:11:10,955 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 7 predicate places. [2021-03-24 20:11:10,955 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 70 transitions, 377 flow [2021-03-24 20:11:10,956 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 106.875) internal successors, (1710), 16 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:10,956 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:10,957 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:10,957 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 20:11:10,957 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]=== [2021-03-24 20:11:10,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:10,958 INFO L82 PathProgramCache]: Analyzing trace with hash -737221041, now seen corresponding path program 1 times [2021-03-24 20:11:10,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:10,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123380530] [2021-03-24 20:11:10,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:11,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:11,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:11,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:11,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:11,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 20:11:11,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:11,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 20:11:11,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:11,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-24 20:11:11,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:11,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:11,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:11,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 20:11:11,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:11,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:11,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:11,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123380530] [2021-03-24 20:11:11,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:11,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 20:11:11,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379229998] [2021-03-24 20:11:11,082 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 20:11:11,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:11,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 20:11:11,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-24 20:11:11,084 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 279 [2021-03-24 20:11:11,085 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 70 transitions, 377 flow. Second operand has 6 states, 6 states have (on average 187.16666666666666) internal successors, (1123), 6 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:11,085 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:11,085 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 279 [2021-03-24 20:11:11,085 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:11,283 INFO L129 PetriNetUnfolder]: 217/670 cut-off events. [2021-03-24 20:11:11,283 INFO L130 PetriNetUnfolder]: For 1204/1220 co-relation queries the response was YES. [2021-03-24 20:11:11,285 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2148 conditions, 670 events. 217/670 cut-off events. For 1204/1220 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4430 event pairs, 137 based on Foata normal form. 24/687 useless extension candidates. Maximal degree in co-relation 2133. Up to 426 conditions per place. [2021-03-24 20:11:11,288 INFO L132 encePairwiseOnDemand]: 272/279 looper letters, 54 selfloop transitions, 17 changer transitions 0/92 dead transitions. [2021-03-24 20:11:11,288 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 92 transitions, 677 flow [2021-03-24 20:11:11,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 20:11:11,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 20:11:11,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1327 transitions. [2021-03-24 20:11:11,291 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6794674859190988 [2021-03-24 20:11:11,291 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1327 transitions. [2021-03-24 20:11:11,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1327 transitions. [2021-03-24 20:11:11,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:11,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1327 transitions. [2021-03-24 20:11:11,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 189.57142857142858) internal successors, (1327), 7 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:11,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 279.0) internal successors, (2232), 8 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:11,298 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 279.0) internal successors, (2232), 8 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:11,298 INFO L185 Difference]: Start difference. First operand has 71 places, 70 transitions, 377 flow. Second operand 7 states and 1327 transitions. [2021-03-24 20:11:11,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 92 transitions, 677 flow [2021-03-24 20:11:11,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 92 transitions, 654 flow, removed 8 selfloop flow, removed 3 redundant places. [2021-03-24 20:11:11,305 INFO L241 Difference]: Finished difference. Result has 78 places, 82 transitions, 531 flow [2021-03-24 20:11:11,305 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=531, PETRI_PLACES=78, PETRI_TRANSITIONS=82} [2021-03-24 20:11:11,305 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 14 predicate places. [2021-03-24 20:11:11,305 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 82 transitions, 531 flow [2021-03-24 20:11:11,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 187.16666666666666) internal successors, (1123), 6 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:11,306 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:11,306 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:11,306 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-24 20:11:11,307 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]=== [2021-03-24 20:11:11,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:11,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1104286123, now seen corresponding path program 3 times [2021-03-24 20:11:11,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:11,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571604903] [2021-03-24 20:11:11,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:11,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:11,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:11,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:11,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:11,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:11,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:11,466 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-24 20:11:11,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:11,511 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 20:11:11,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:11,530 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-03-24 20:11:11,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:11,543 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-03-24 20:11:11,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:11:11,558 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:11,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:11,576 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-24 20:11:11,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:11:11,588 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:11,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:11,589 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 20:11:11,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:11,604 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:11,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:11,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:11,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 20:11:11,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:11,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571604903] [2021-03-24 20:11:11,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:11,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-24 20:11:11,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822320542] [2021-03-24 20:11:11,634 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-24 20:11:11,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:11,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-24 20:11:11,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-03-24 20:11:11,636 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 279 [2021-03-24 20:11:11,637 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 82 transitions, 531 flow. Second operand has 11 states, 11 states have (on average 116.54545454545455) internal successors, (1282), 11 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:11,637 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:11,638 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 279 [2021-03-24 20:11:11,638 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:12,157 INFO L129 PetriNetUnfolder]: 308/927 cut-off events. [2021-03-24 20:11:12,157 INFO L130 PetriNetUnfolder]: For 2222/2250 co-relation queries the response was YES. [2021-03-24 20:11:12,161 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3252 conditions, 927 events. 308/927 cut-off events. For 2222/2250 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 6399 event pairs, 48 based on Foata normal form. 16/941 useless extension candidates. Maximal degree in co-relation 3233. Up to 277 conditions per place. [2021-03-24 20:11:12,165 INFO L132 encePairwiseOnDemand]: 267/279 looper letters, 98 selfloop transitions, 38 changer transitions 0/146 dead transitions. [2021-03-24 20:11:12,165 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 146 transitions, 1232 flow [2021-03-24 20:11:12,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 20:11:12,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 20:11:12,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1217 transitions. [2021-03-24 20:11:12,169 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43620071684587813 [2021-03-24 20:11:12,169 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1217 transitions. [2021-03-24 20:11:12,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1217 transitions. [2021-03-24 20:11:12,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:12,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1217 transitions. [2021-03-24 20:11:12,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 121.7) internal successors, (1217), 10 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:12,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 279.0) internal successors, (3069), 11 states have internal predecessors, (3069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:12,176 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 279.0) internal successors, (3069), 11 states have internal predecessors, (3069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:12,176 INFO L185 Difference]: Start difference. First operand has 78 places, 82 transitions, 531 flow. Second operand 10 states and 1217 transitions. [2021-03-24 20:11:12,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 146 transitions, 1232 flow [2021-03-24 20:11:12,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 146 transitions, 1185 flow, removed 23 selfloop flow, removed 1 redundant places. [2021-03-24 20:11:12,185 INFO L241 Difference]: Finished difference. Result has 90 places, 98 transitions, 781 flow [2021-03-24 20:11:12,185 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=781, PETRI_PLACES=90, PETRI_TRANSITIONS=98} [2021-03-24 20:11:12,185 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 26 predicate places. [2021-03-24 20:11:12,185 INFO L480 AbstractCegarLoop]: Abstraction has has 90 places, 98 transitions, 781 flow [2021-03-24 20:11:12,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 116.54545454545455) internal successors, (1282), 11 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:12,186 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:12,186 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:12,186 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-24 20:11:12,186 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]=== [2021-03-24 20:11:12,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:12,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1039333131, now seen corresponding path program 4 times [2021-03-24 20:11:12,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:12,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866970469] [2021-03-24 20:11:12,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:12,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:12,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:12,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:12,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:12,320 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-24 20:11:12,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:12,330 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 20:11:12,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:12,344 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.0 percent of original size [2021-03-24 20:11:12,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:11:12,375 INFO L142 QuantifierPusher]: treesize reduction 19, result has 58.7 percent of original size [2021-03-24 20:11:12,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:12,405 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 20:11:12,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:11:12,445 INFO L142 QuantifierPusher]: treesize reduction 19, result has 65.5 percent of original size [2021-03-24 20:11:12,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:11:12,456 INFO L142 QuantifierPusher]: treesize reduction 19, result has 65.5 percent of original size [2021-03-24 20:11:12,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:11:12,493 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:12,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:12,521 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-24 20:11:12,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:11:12,533 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:12,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:12,535 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 20:11:12,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:12,581 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:12,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:12,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:12,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 20:11:12,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:12,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866970469] [2021-03-24 20:11:12,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:12,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-24 20:11:12,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041891237] [2021-03-24 20:11:12,615 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 20:11:12,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:12,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 20:11:12,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-03-24 20:11:12,618 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 279 [2021-03-24 20:11:12,620 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 98 transitions, 781 flow. Second operand has 13 states, 13 states have (on average 107.3076923076923) internal successors, (1395), 13 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) [2021-03-24 20:11:12,620 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:12,620 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 279 [2021-03-24 20:11:12,620 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:13,475 INFO L129 PetriNetUnfolder]: 620/1646 cut-off events. [2021-03-24 20:11:13,475 INFO L130 PetriNetUnfolder]: For 5850/5973 co-relation queries the response was YES. [2021-03-24 20:11:13,481 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6309 conditions, 1646 events. 620/1646 cut-off events. For 5850/5973 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 12568 event pairs, 220 based on Foata normal form. 21/1660 useless extension candidates. Maximal degree in co-relation 6286. Up to 735 conditions per place. [2021-03-24 20:11:13,489 INFO L132 encePairwiseOnDemand]: 267/279 looper letters, 125 selfloop transitions, 47 changer transitions 0/180 dead transitions. [2021-03-24 20:11:13,489 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 180 transitions, 1796 flow [2021-03-24 20:11:13,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 20:11:13,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 20:11:13,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1130 transitions. [2021-03-24 20:11:13,496 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4050179211469534 [2021-03-24 20:11:13,496 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1130 transitions. [2021-03-24 20:11:13,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1130 transitions. [2021-03-24 20:11:13,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:13,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1130 transitions. [2021-03-24 20:11:13,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 113.0) internal successors, (1130), 10 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:13,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 279.0) internal successors, (3069), 11 states have internal predecessors, (3069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:13,539 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 279.0) internal successors, (3069), 11 states have internal predecessors, (3069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:13,539 INFO L185 Difference]: Start difference. First operand has 90 places, 98 transitions, 781 flow. Second operand 10 states and 1130 transitions. [2021-03-24 20:11:13,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 180 transitions, 1796 flow [2021-03-24 20:11:13,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 180 transitions, 1763 flow, removed 10 selfloop flow, removed 4 redundant places. [2021-03-24 20:11:13,557 INFO L241 Difference]: Finished difference. Result has 99 places, 127 transitions, 1277 flow [2021-03-24 20:11:13,558 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1277, PETRI_PLACES=99, PETRI_TRANSITIONS=127} [2021-03-24 20:11:13,558 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 35 predicate places. [2021-03-24 20:11:13,558 INFO L480 AbstractCegarLoop]: Abstraction has has 99 places, 127 transitions, 1277 flow [2021-03-24 20:11:13,559 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 107.3076923076923) internal successors, (1395), 13 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) [2021-03-24 20:11:13,559 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:13,559 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:13,559 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-24 20:11:13,560 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]=== [2021-03-24 20:11:13,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:13,560 INFO L82 PathProgramCache]: Analyzing trace with hash -2032479249, now seen corresponding path program 5 times [2021-03-24 20:11:13,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:13,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308489947] [2021-03-24 20:11:13,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:13,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:13,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:13,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:13,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:13,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:13,697 INFO L142 QuantifierPusher]: treesize reduction 30, result has 33.3 percent of original size [2021-03-24 20:11:13,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:13,708 INFO L142 QuantifierPusher]: treesize reduction 13, result has 56.7 percent of original size [2021-03-24 20:11:13,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:13,722 INFO L142 QuantifierPusher]: treesize reduction 19, result has 57.8 percent of original size [2021-03-24 20:11:13,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:11:13,750 INFO L142 QuantifierPusher]: treesize reduction 21, result has 56.3 percent of original size [2021-03-24 20:11:13,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:13,781 INFO L142 QuantifierPusher]: treesize reduction 21, result has 67.2 percent of original size [2021-03-24 20:11:13,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:11:13,822 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.2 percent of original size [2021-03-24 20:11:13,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:11:13,835 INFO L142 QuantifierPusher]: treesize reduction 24, result has 50.0 percent of original size [2021-03-24 20:11:13,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:11:13,855 INFO L142 QuantifierPusher]: treesize reduction 20, result has 53.5 percent of original size [2021-03-24 20:11:13,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:13,874 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-24 20:11:13,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:11:13,888 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:13,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:13,890 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:13,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:13,907 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:13,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:13,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:13,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 20:11:13,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:13,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308489947] [2021-03-24 20:11:13,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:13,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-24 20:11:13,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64235430] [2021-03-24 20:11:13,939 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 20:11:13,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:13,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 20:11:13,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-03-24 20:11:13,942 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 279 [2021-03-24 20:11:13,943 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 127 transitions, 1277 flow. Second operand has 13 states, 13 states have (on average 107.3076923076923) internal successors, (1395), 13 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) [2021-03-24 20:11:13,943 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:13,943 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 279 [2021-03-24 20:11:13,943 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:15,111 INFO L129 PetriNetUnfolder]: 631/1701 cut-off events. [2021-03-24 20:11:15,111 INFO L130 PetriNetUnfolder]: For 7631/7697 co-relation queries the response was YES. [2021-03-24 20:11:15,119 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6925 conditions, 1701 events. 631/1701 cut-off events. For 7631/7697 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 13161 event pairs, 88 based on Foata normal form. 38/1739 useless extension candidates. Maximal degree in co-relation 6898. Up to 375 conditions per place. [2021-03-24 20:11:15,127 INFO L132 encePairwiseOnDemand]: 266/279 looper letters, 133 selfloop transitions, 74 changer transitions 0/215 dead transitions. [2021-03-24 20:11:15,127 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 215 transitions, 2321 flow [2021-03-24 20:11:15,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-24 20:11:15,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-24 20:11:15,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1469 transitions. [2021-03-24 20:11:15,131 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4050179211469534 [2021-03-24 20:11:15,132 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1469 transitions. [2021-03-24 20:11:15,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1469 transitions. [2021-03-24 20:11:15,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:15,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1469 transitions. [2021-03-24 20:11:15,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 113.0) internal successors, (1469), 13 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:15,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 279.0) internal successors, (3906), 14 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:15,153 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 279.0) internal successors, (3906), 14 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:15,153 INFO L185 Difference]: Start difference. First operand has 99 places, 127 transitions, 1277 flow. Second operand 13 states and 1469 transitions. [2021-03-24 20:11:15,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 215 transitions, 2321 flow [2021-03-24 20:11:15,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 215 transitions, 2290 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-03-24 20:11:15,176 INFO L241 Difference]: Finished difference. Result has 111 places, 143 transitions, 1660 flow [2021-03-24 20:11:15,176 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=1252, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1660, PETRI_PLACES=111, PETRI_TRANSITIONS=143} [2021-03-24 20:11:15,176 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 47 predicate places. [2021-03-24 20:11:15,176 INFO L480 AbstractCegarLoop]: Abstraction has has 111 places, 143 transitions, 1660 flow [2021-03-24 20:11:15,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 107.3076923076923) internal successors, (1395), 13 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) [2021-03-24 20:11:15,177 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:15,177 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:15,177 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-24 20:11:15,177 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]=== [2021-03-24 20:11:15,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:15,177 INFO L82 PathProgramCache]: Analyzing trace with hash -737716993, now seen corresponding path program 6 times [2021-03-24 20:11:15,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:15,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665861556] [2021-03-24 20:11:15,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:15,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:15,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:15,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:15,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:15,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:15,276 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-24 20:11:15,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:15,287 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 20:11:15,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:15,299 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-24 20:11:15,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:11:15,315 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-24 20:11:15,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:11:15,333 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:11:15,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:15,354 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-24 20:11:15,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:11:15,382 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:11:15,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:15,396 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:11:15,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:15,411 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-24 20:11:15,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:15,431 INFO L142 QuantifierPusher]: treesize reduction 9, result has 69.0 percent of original size [2021-03-24 20:11:15,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 20:11:15,451 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 20:11:15,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:15,470 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 20:11:15,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:15,473 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:15,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:15,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:15,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 20:11:15,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:15,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665861556] [2021-03-24 20:11:15,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:15,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-24 20:11:15,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343145673] [2021-03-24 20:11:15,501 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-24 20:11:15,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:15,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-24 20:11:15,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-03-24 20:11:15,504 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 279 [2021-03-24 20:11:15,505 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 143 transitions, 1660 flow. Second operand has 14 states, 14 states have (on average 107.14285714285714) internal successors, (1500), 14 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:15,505 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:15,505 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 279 [2021-03-24 20:11:15,505 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:16,512 INFO L129 PetriNetUnfolder]: 628/1705 cut-off events. [2021-03-24 20:11:16,512 INFO L130 PetriNetUnfolder]: For 10445/10545 co-relation queries the response was YES. [2021-03-24 20:11:16,556 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7572 conditions, 1705 events. 628/1705 cut-off events. For 10445/10545 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 13201 event pairs, 288 based on Foata normal form. 27/1725 useless extension candidates. Maximal degree in co-relation 7541. Up to 771 conditions per place. [2021-03-24 20:11:16,564 INFO L132 encePairwiseOnDemand]: 267/279 looper letters, 137 selfloop transitions, 53 changer transitions 0/198 dead transitions. [2021-03-24 20:11:16,564 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 198 transitions, 2412 flow [2021-03-24 20:11:16,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-24 20:11:16,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-24 20:11:16,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1242 transitions. [2021-03-24 20:11:16,568 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4046920821114369 [2021-03-24 20:11:16,568 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1242 transitions. [2021-03-24 20:11:16,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1242 transitions. [2021-03-24 20:11:16,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:16,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1242 transitions. [2021-03-24 20:11:16,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 112.9090909090909) internal successors, (1242), 11 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:16,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 279.0) internal successors, (3348), 12 states have internal predecessors, (3348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:16,576 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 279.0) internal successors, (3348), 12 states have internal predecessors, (3348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:16,576 INFO L185 Difference]: Start difference. First operand has 111 places, 143 transitions, 1660 flow. Second operand 11 states and 1242 transitions. [2021-03-24 20:11:16,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 198 transitions, 2412 flow [2021-03-24 20:11:16,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 198 transitions, 2348 flow, removed 23 selfloop flow, removed 3 redundant places. [2021-03-24 20:11:16,608 INFO L241 Difference]: Finished difference. Result has 121 places, 150 transitions, 1851 flow [2021-03-24 20:11:16,608 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=1596, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1851, PETRI_PLACES=121, PETRI_TRANSITIONS=150} [2021-03-24 20:11:16,608 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 57 predicate places. [2021-03-24 20:11:16,608 INFO L480 AbstractCegarLoop]: Abstraction has has 121 places, 150 transitions, 1851 flow [2021-03-24 20:11:16,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 107.14285714285714) internal successors, (1500), 14 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:16,609 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:16,609 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:16,609 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-24 20:11:16,609 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]=== [2021-03-24 20:11:16,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:16,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1548847873, now seen corresponding path program 7 times [2021-03-24 20:11:16,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:16,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724681362] [2021-03-24 20:11:16,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:16,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:16,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:16,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:16,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:16,727 INFO L142 QuantifierPusher]: treesize reduction 42, result has 26.3 percent of original size [2021-03-24 20:11:16,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:16,736 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 20:11:16,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:16,747 INFO L142 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-03-24 20:11:16,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 20:11:16,760 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 20:11:16,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:16,796 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.4 percent of original size [2021-03-24 20:11:16,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:11:16,846 INFO L142 QuantifierPusher]: treesize reduction 14, result has 78.1 percent of original size [2021-03-24 20:11:16,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:11:16,861 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.9 percent of original size [2021-03-24 20:11:16,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:11:16,875 INFO L142 QuantifierPusher]: treesize reduction 12, result has 71.4 percent of original size [2021-03-24 20:11:16,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:11:16,913 INFO L142 QuantifierPusher]: treesize reduction 8, result has 78.9 percent of original size [2021-03-24 20:11:16,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:11:16,918 INFO L142 QuantifierPusher]: treesize reduction 14, result has 72.0 percent of original size [2021-03-24 20:11:16,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:11:16,957 INFO L142 QuantifierPusher]: treesize reduction 14, result has 74.5 percent of original size [2021-03-24 20:11:16,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:11:16,994 INFO L142 QuantifierPusher]: treesize reduction 12, result has 80.0 percent of original size [2021-03-24 20:11:16,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-24 20:11:17,029 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:11:17,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:17,060 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 20:11:17,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:17,079 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:17,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:17,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:17,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 20:11:17,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:17,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724681362] [2021-03-24 20:11:17,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:17,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-24 20:11:17,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340187317] [2021-03-24 20:11:17,114 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-24 20:11:17,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:17,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-24 20:11:17,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-03-24 20:11:17,117 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 279 [2021-03-24 20:11:17,118 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 150 transitions, 1851 flow. Second operand has 16 states, 16 states have (on average 106.875) internal successors, (1710), 16 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:17,118 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:17,118 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 279 [2021-03-24 20:11:17,118 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:18,339 INFO L129 PetriNetUnfolder]: 656/1826 cut-off events. [2021-03-24 20:11:18,339 INFO L130 PetriNetUnfolder]: For 12591/12633 co-relation queries the response was YES. [2021-03-24 20:11:18,349 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8247 conditions, 1826 events. 656/1826 cut-off events. For 12591/12633 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 14471 event pairs, 239 based on Foata normal form. 7/1826 useless extension candidates. Maximal degree in co-relation 8213. Up to 837 conditions per place. [2021-03-24 20:11:18,360 INFO L132 encePairwiseOnDemand]: 266/279 looper letters, 162 selfloop transitions, 69 changer transitions 0/239 dead transitions. [2021-03-24 20:11:18,360 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 239 transitions, 3172 flow [2021-03-24 20:11:18,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-24 20:11:18,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-24 20:11:18,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1574 transitions. [2021-03-24 20:11:18,365 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40296979006656425 [2021-03-24 20:11:18,365 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1574 transitions. [2021-03-24 20:11:18,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1574 transitions. [2021-03-24 20:11:18,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:18,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1574 transitions. [2021-03-24 20:11:18,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 112.42857142857143) internal successors, (1574), 14 states have internal predecessors, (1574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:18,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 279.0) internal successors, (4185), 15 states have internal predecessors, (4185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:18,376 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 279.0) internal successors, (4185), 15 states have internal predecessors, (4185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:18,376 INFO L185 Difference]: Start difference. First operand has 121 places, 150 transitions, 1851 flow. Second operand 14 states and 1574 transitions. [2021-03-24 20:11:18,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 239 transitions, 3172 flow [2021-03-24 20:11:18,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 239 transitions, 3102 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-03-24 20:11:18,422 INFO L241 Difference]: Finished difference. Result has 135 places, 173 transitions, 2330 flow [2021-03-24 20:11:18,422 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=1802, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2330, PETRI_PLACES=135, PETRI_TRANSITIONS=173} [2021-03-24 20:11:18,422 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 71 predicate places. [2021-03-24 20:11:18,422 INFO L480 AbstractCegarLoop]: Abstraction has has 135 places, 173 transitions, 2330 flow [2021-03-24 20:11:18,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 106.875) internal successors, (1710), 16 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:18,423 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:18,423 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:18,423 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-24 20:11:18,423 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]=== [2021-03-24 20:11:18,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:18,424 INFO L82 PathProgramCache]: Analyzing trace with hash -463986427, now seen corresponding path program 8 times [2021-03-24 20:11:18,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:18,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055751476] [2021-03-24 20:11:18,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:18,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:18,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:18,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:18,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:18,539 INFO L142 QuantifierPusher]: treesize reduction 22, result has 47.6 percent of original size [2021-03-24 20:11:18,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 20:11:18,562 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:11:18,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:18,573 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:11:18,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:18,590 INFO L142 QuantifierPusher]: treesize reduction 18, result has 57.1 percent of original size [2021-03-24 20:11:18,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:11:18,609 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-24 20:11:18,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:18,629 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 20:11:18,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:11:18,653 INFO L142 QuantifierPusher]: treesize reduction 18, result has 68.4 percent of original size [2021-03-24 20:11:18,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:18,666 INFO L142 QuantifierPusher]: treesize reduction 18, result has 68.4 percent of original size [2021-03-24 20:11:18,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:18,681 INFO L142 QuantifierPusher]: treesize reduction 11, result has 71.1 percent of original size [2021-03-24 20:11:18,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:18,702 INFO L142 QuantifierPusher]: treesize reduction 11, result has 64.5 percent of original size [2021-03-24 20:11:18,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 20:11:18,722 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:11:18,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:18,741 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:11:18,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:18,742 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:18,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:18,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:18,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 20:11:18,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:18,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055751476] [2021-03-24 20:11:18,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:18,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-24 20:11:18,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913231788] [2021-03-24 20:11:18,775 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-24 20:11:18,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:18,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-24 20:11:18,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-03-24 20:11:18,777 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 279 [2021-03-24 20:11:18,778 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 173 transitions, 2330 flow. Second operand has 14 states, 14 states have (on average 107.14285714285714) internal successors, (1500), 14 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:18,778 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:18,779 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 279 [2021-03-24 20:11:18,779 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:19,929 INFO L129 PetriNetUnfolder]: 656/1817 cut-off events. [2021-03-24 20:11:19,929 INFO L130 PetriNetUnfolder]: For 15047/15155 co-relation queries the response was YES. [2021-03-24 20:11:19,938 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8666 conditions, 1817 events. 656/1817 cut-off events. For 15047/15155 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 14419 event pairs, 111 based on Foata normal form. 60/1876 useless extension candidates. Maximal degree in co-relation 8626. Up to 446 conditions per place. [2021-03-24 20:11:19,946 INFO L132 encePairwiseOnDemand]: 266/279 looper letters, 153 selfloop transitions, 92 changer transitions 0/253 dead transitions. [2021-03-24 20:11:19,946 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 253 transitions, 3405 flow [2021-03-24 20:11:19,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-24 20:11:19,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-24 20:11:19,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1581 transitions. [2021-03-24 20:11:19,949 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40476190476190477 [2021-03-24 20:11:19,949 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1581 transitions. [2021-03-24 20:11:19,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1581 transitions. [2021-03-24 20:11:19,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:19,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1581 transitions. [2021-03-24 20:11:19,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 112.92857142857143) internal successors, (1581), 14 states have internal predecessors, (1581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:19,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 279.0) internal successors, (4185), 15 states have internal predecessors, (4185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:19,956 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 279.0) internal successors, (4185), 15 states have internal predecessors, (4185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:19,956 INFO L185 Difference]: Start difference. First operand has 135 places, 173 transitions, 2330 flow. Second operand 14 states and 1581 transitions. [2021-03-24 20:11:19,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 253 transitions, 3405 flow [2021-03-24 20:11:20,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 253 transitions, 3357 flow, removed 20 selfloop flow, removed 4 redundant places. [2021-03-24 20:11:20,005 INFO L241 Difference]: Finished difference. Result has 146 places, 181 transitions, 2631 flow [2021-03-24 20:11:20,005 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=2286, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2631, PETRI_PLACES=146, PETRI_TRANSITIONS=181} [2021-03-24 20:11:20,006 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 82 predicate places. [2021-03-24 20:11:20,006 INFO L480 AbstractCegarLoop]: Abstraction has has 146 places, 181 transitions, 2631 flow [2021-03-24 20:11:20,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 107.14285714285714) internal successors, (1500), 14 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:20,006 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:20,006 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:20,006 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-24 20:11:20,006 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]=== [2021-03-24 20:11:20,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:20,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1661190171, now seen corresponding path program 9 times [2021-03-24 20:11:20,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:20,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106036844] [2021-03-24 20:11:20,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:20,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:20,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:20,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:20,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:20,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:20,095 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-24 20:11:20,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:20,105 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 20:11:20,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:20,116 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-24 20:11:20,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:11:20,133 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-24 20:11:20,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:11:20,156 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:11:20,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:20,177 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:11:20,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:20,204 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:11:20,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:20,220 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-24 20:11:20,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:11:20,241 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:20,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:20,253 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 20:11:20,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:20,271 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 20:11:20,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:20,272 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:20,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:20,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:20,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 20:11:20,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:20,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106036844] [2021-03-24 20:11:20,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:20,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-24 20:11:20,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850637365] [2021-03-24 20:11:20,303 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 20:11:20,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:20,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 20:11:20,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-03-24 20:11:20,305 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 279 [2021-03-24 20:11:20,306 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 181 transitions, 2631 flow. Second operand has 13 states, 13 states have (on average 106.3076923076923) internal successors, (1382), 13 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:20,306 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:20,307 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 279 [2021-03-24 20:11:20,307 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:20,996 INFO L129 PetriNetUnfolder]: 656/1829 cut-off events. [2021-03-24 20:11:20,996 INFO L130 PetriNetUnfolder]: For 17650/17706 co-relation queries the response was YES. [2021-03-24 20:11:21,005 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9012 conditions, 1829 events. 656/1829 cut-off events. For 17650/17706 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 14550 event pairs, 268 based on Foata normal form. 11/1836 useless extension candidates. Maximal degree in co-relation 8971. Up to 712 conditions per place. [2021-03-24 20:11:21,012 INFO L132 encePairwiseOnDemand]: 269/279 looper letters, 157 selfloop transitions, 56 changer transitions 0/221 dead transitions. [2021-03-24 20:11:21,012 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 221 transitions, 3349 flow [2021-03-24 20:11:21,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-24 20:11:21,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-24 20:11:21,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1219 transitions. [2021-03-24 20:11:21,014 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3971977842945585 [2021-03-24 20:11:21,014 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1219 transitions. [2021-03-24 20:11:21,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1219 transitions. [2021-03-24 20:11:21,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:21,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1219 transitions. [2021-03-24 20:11:21,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 110.81818181818181) internal successors, (1219), 11 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:21,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 279.0) internal successors, (3348), 12 states have internal predecessors, (3348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:21,019 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 279.0) internal successors, (3348), 12 states have internal predecessors, (3348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:21,019 INFO L185 Difference]: Start difference. First operand has 146 places, 181 transitions, 2631 flow. Second operand 11 states and 1219 transitions. [2021-03-24 20:11:21,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 221 transitions, 3349 flow [2021-03-24 20:11:21,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 221 transitions, 3284 flow, removed 5 selfloop flow, removed 7 redundant places. [2021-03-24 20:11:21,111 INFO L241 Difference]: Finished difference. Result has 150 places, 182 transitions, 2706 flow [2021-03-24 20:11:21,111 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=2550, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2706, PETRI_PLACES=150, PETRI_TRANSITIONS=182} [2021-03-24 20:11:21,111 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 86 predicate places. [2021-03-24 20:11:21,111 INFO L480 AbstractCegarLoop]: Abstraction has has 150 places, 182 transitions, 2706 flow [2021-03-24 20:11:21,112 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 106.3076923076923) internal successors, (1382), 13 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:21,112 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:21,112 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:21,112 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-24 20:11:21,112 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]=== [2021-03-24 20:11:21,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:21,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1769163559, now seen corresponding path program 1 times [2021-03-24 20:11:21,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:21,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005077030] [2021-03-24 20:11:21,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:21,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:21,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:21,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:21,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:21,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:21,269 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:11:21,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:21,293 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:11:21,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:11:21,326 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-03-24 20:11:21,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 20:11:21,371 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-24 20:11:21,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:11:21,431 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-24 20:11:21,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:11:21,486 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-03-24 20:11:21,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 20:11:21,488 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:11:21,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:21,506 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 20:11:21,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:11:21,524 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:11:21,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:21,553 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:11:21,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:21,566 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 20:11:21,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:21,585 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:11:21,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:21,618 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 20:11:21,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:11:21,638 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 20:11:21,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:11:21,661 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:11:21,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:11:21,675 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 20:11:21,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:11:21,695 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:11:21,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:11:21,715 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-24 20:11:21,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:11:21,734 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:21,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:21,757 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:21,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:21,758 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:21,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:21,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:21,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005077030] [2021-03-24 20:11:21,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:21,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-24 20:11:21,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530665535] [2021-03-24 20:11:21,777 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-24 20:11:21,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:21,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-24 20:11:21,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2021-03-24 20:11:21,780 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 279 [2021-03-24 20:11:21,781 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 182 transitions, 2706 flow. Second operand has 20 states, 20 states have (on average 79.65) internal successors, (1593), 20 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:21,781 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:21,781 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 279 [2021-03-24 20:11:21,781 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:23,450 INFO L129 PetriNetUnfolder]: 866/2344 cut-off events. [2021-03-24 20:11:23,450 INFO L130 PetriNetUnfolder]: For 24192/24337 co-relation queries the response was YES. [2021-03-24 20:11:23,460 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11848 conditions, 2344 events. 866/2344 cut-off events. For 24192/24337 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 20026 event pairs, 308 based on Foata normal form. 31/2370 useless extension candidates. Maximal degree in co-relation 11806. Up to 1426 conditions per place. [2021-03-24 20:11:23,468 INFO L132 encePairwiseOnDemand]: 262/279 looper letters, 186 selfloop transitions, 118 changer transitions 9/319 dead transitions. [2021-03-24 20:11:23,469 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 319 transitions, 5466 flow [2021-03-24 20:11:23,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-24 20:11:23,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-24 20:11:23,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1421 transitions. [2021-03-24 20:11:23,471 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29959940965633564 [2021-03-24 20:11:23,471 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1421 transitions. [2021-03-24 20:11:23,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1421 transitions. [2021-03-24 20:11:23,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:23,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1421 transitions. [2021-03-24 20:11:23,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 83.58823529411765) internal successors, (1421), 17 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:23,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 279.0) internal successors, (5022), 18 states have internal predecessors, (5022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:23,478 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 279.0) internal successors, (5022), 18 states have internal predecessors, (5022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:23,478 INFO L185 Difference]: Start difference. First operand has 150 places, 182 transitions, 2706 flow. Second operand 17 states and 1421 transitions. [2021-03-24 20:11:23,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 319 transitions, 5466 flow [2021-03-24 20:11:23,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 319 transitions, 5433 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-24 20:11:23,543 INFO L241 Difference]: Finished difference. Result has 170 places, 256 transitions, 4366 flow [2021-03-24 20:11:23,544 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=2681, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=4366, PETRI_PLACES=170, PETRI_TRANSITIONS=256} [2021-03-24 20:11:23,544 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 106 predicate places. [2021-03-24 20:11:23,544 INFO L480 AbstractCegarLoop]: Abstraction has has 170 places, 256 transitions, 4366 flow [2021-03-24 20:11:23,544 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 79.65) internal successors, (1593), 20 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:23,544 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:23,544 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:23,545 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-24 20:11:23,545 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]=== [2021-03-24 20:11:23,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:23,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1766511081, now seen corresponding path program 2 times [2021-03-24 20:11:23,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:23,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114979216] [2021-03-24 20:11:23,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:23,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:23,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:23,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:23,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:23,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:23,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 20:11:23,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:23,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 20:11:23,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:23,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 20:11:23,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:23,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 20:11:23,651 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:23,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:23,652 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:23,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:23,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:23,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:23,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:23,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114979216] [2021-03-24 20:11:23,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:23,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 20:11:23,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123830683] [2021-03-24 20:11:23,657 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 20:11:23,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:23,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 20:11:23,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-24 20:11:23,659 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 279 [2021-03-24 20:11:23,660 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 256 transitions, 4366 flow. Second operand has 6 states, 6 states have (on average 205.33333333333334) internal successors, (1232), 6 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:23,660 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:23,660 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 279 [2021-03-24 20:11:23,660 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:23,865 INFO L129 PetriNetUnfolder]: 172/896 cut-off events. [2021-03-24 20:11:23,865 INFO L130 PetriNetUnfolder]: For 8689/8758 co-relation queries the response was YES. [2021-03-24 20:11:23,870 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4516 conditions, 896 events. 172/896 cut-off events. For 8689/8758 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 7752 event pairs, 7 based on Foata normal form. 36/921 useless extension candidates. Maximal degree in co-relation 4466. Up to 229 conditions per place. [2021-03-24 20:11:23,873 INFO L132 encePairwiseOnDemand]: 272/279 looper letters, 49 selfloop transitions, 14 changer transitions 0/208 dead transitions. [2021-03-24 20:11:23,873 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 208 transitions, 3338 flow [2021-03-24 20:11:23,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 20:11:23,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 20:11:23,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1238 transitions. [2021-03-24 20:11:23,875 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7395459976105138 [2021-03-24 20:11:23,875 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1238 transitions. [2021-03-24 20:11:23,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1238 transitions. [2021-03-24 20:11:23,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:23,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1238 transitions. [2021-03-24 20:11:23,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 206.33333333333334) internal successors, (1238), 6 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:23,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 279.0) internal successors, (1953), 7 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:23,880 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 279.0) internal successors, (1953), 7 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:23,880 INFO L185 Difference]: Start difference. First operand has 170 places, 256 transitions, 4366 flow. Second operand 6 states and 1238 transitions. [2021-03-24 20:11:23,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 208 transitions, 3338 flow [2021-03-24 20:11:23,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 208 transitions, 3003 flow, removed 74 selfloop flow, removed 17 redundant places. [2021-03-24 20:11:23,924 INFO L241 Difference]: Finished difference. Result has 156 places, 195 transitions, 2767 flow [2021-03-24 20:11:23,925 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=2710, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2767, PETRI_PLACES=156, PETRI_TRANSITIONS=195} [2021-03-24 20:11:23,925 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 92 predicate places. [2021-03-24 20:11:23,925 INFO L480 AbstractCegarLoop]: Abstraction has has 156 places, 195 transitions, 2767 flow [2021-03-24 20:11:23,925 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 205.33333333333334) internal successors, (1232), 6 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:23,925 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:23,926 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:23,926 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-24 20:11:23,926 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]=== [2021-03-24 20:11:23,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:23,926 INFO L82 PathProgramCache]: Analyzing trace with hash -705832837, now seen corresponding path program 3 times [2021-03-24 20:11:23,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:23,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009174118] [2021-03-24 20:11:23,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:24,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:24,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:24,036 INFO L142 QuantifierPusher]: treesize reduction 10, result has 60.0 percent of original size [2021-03-24 20:11:24,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:24,047 INFO L142 QuantifierPusher]: treesize reduction 12, result has 70.0 percent of original size [2021-03-24 20:11:24,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:24,070 INFO L142 QuantifierPusher]: treesize reduction 28, result has 56.3 percent of original size [2021-03-24 20:11:24,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:11:24,096 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.6 percent of original size [2021-03-24 20:11:24,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 20:11:24,130 INFO L142 QuantifierPusher]: treesize reduction 23, result has 67.6 percent of original size [2021-03-24 20:11:24,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-24 20:11:24,163 INFO L142 QuantifierPusher]: treesize reduction 39, result has 61.0 percent of original size [2021-03-24 20:11:24,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 20:11:24,208 INFO L142 QuantifierPusher]: treesize reduction 30, result has 65.9 percent of original size [2021-03-24 20:11:24,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 20:11:24,243 INFO L142 QuantifierPusher]: treesize reduction 30, result has 63.9 percent of original size [2021-03-24 20:11:24,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:11:24,265 INFO L142 QuantifierPusher]: treesize reduction 36, result has 59.6 percent of original size [2021-03-24 20:11:24,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:11:24,317 INFO L142 QuantifierPusher]: treesize reduction 30, result has 67.7 percent of original size [2021-03-24 20:11:24,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-24 20:11:24,356 INFO L142 QuantifierPusher]: treesize reduction 32, result has 65.6 percent of original size [2021-03-24 20:11:24,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 20:11:24,431 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:11:24,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:24,465 INFO L142 QuantifierPusher]: treesize reduction 22, result has 59.3 percent of original size [2021-03-24 20:11:24,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:11:24,490 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 20:11:24,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:11:24,506 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 20:11:24,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:11:24,507 INFO L142 QuantifierPusher]: treesize reduction 35, result has 42.6 percent of original size [2021-03-24 20:11:24,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:11:24,544 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:24,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:24,566 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:24,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:24,586 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:24,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:24,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:24,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009174118] [2021-03-24 20:11:24,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:24,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-24 20:11:24,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78704236] [2021-03-24 20:11:24,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 20:11:24,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:24,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 20:11:24,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-03-24 20:11:24,608 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 279 [2021-03-24 20:11:24,610 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 195 transitions, 2767 flow. Second operand has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:24,610 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:24,610 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 279 [2021-03-24 20:11:24,610 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:25,621 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2021-03-24 20:11:26,333 INFO L129 PetriNetUnfolder]: 523/1545 cut-off events. [2021-03-24 20:11:26,333 INFO L130 PetriNetUnfolder]: For 13529/13596 co-relation queries the response was YES. [2021-03-24 20:11:26,339 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8227 conditions, 1545 events. 523/1545 cut-off events. For 13529/13596 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 12354 event pairs, 214 based on Foata normal form. 21/1559 useless extension candidates. Maximal degree in co-relation 8186. Up to 950 conditions per place. [2021-03-24 20:11:26,343 INFO L132 encePairwiseOnDemand]: 262/279 looper letters, 149 selfloop transitions, 82 changer transitions 21/263 dead transitions. [2021-03-24 20:11:26,343 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 263 transitions, 4061 flow [2021-03-24 20:11:26,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-24 20:11:26,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-24 20:11:26,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2364 transitions. [2021-03-24 20:11:26,346 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49841872232764073 [2021-03-24 20:11:26,346 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2364 transitions. [2021-03-24 20:11:26,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2364 transitions. [2021-03-24 20:11:26,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:26,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2364 transitions. [2021-03-24 20:11:26,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 139.05882352941177) internal successors, (2364), 17 states have internal predecessors, (2364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:26,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 279.0) internal successors, (5022), 18 states have internal predecessors, (5022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:26,354 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 279.0) internal successors, (5022), 18 states have internal predecessors, (5022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:26,354 INFO L185 Difference]: Start difference. First operand has 156 places, 195 transitions, 2767 flow. Second operand 17 states and 2364 transitions. [2021-03-24 20:11:26,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 263 transitions, 4061 flow [2021-03-24 20:11:26,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 263 transitions, 3990 flow, removed 9 selfloop flow, removed 5 redundant places. [2021-03-24 20:11:26,398 INFO L241 Difference]: Finished difference. Result has 172 places, 205 transitions, 3135 flow [2021-03-24 20:11:26,398 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=2717, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3135, PETRI_PLACES=172, PETRI_TRANSITIONS=205} [2021-03-24 20:11:26,398 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 108 predicate places. [2021-03-24 20:11:26,398 INFO L480 AbstractCegarLoop]: Abstraction has has 172 places, 205 transitions, 3135 flow [2021-03-24 20:11:26,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:26,399 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:26,399 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:26,399 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-24 20:11:26,399 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]=== [2021-03-24 20:11:26,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:26,400 INFO L82 PathProgramCache]: Analyzing trace with hash 215070603, now seen corresponding path program 4 times [2021-03-24 20:11:26,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:26,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052770649] [2021-03-24 20:11:26,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:26,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:26,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:26,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:26,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:26,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:26,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:26,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:26,538 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 20:11:26,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:26,553 INFO L142 QuantifierPusher]: treesize reduction 28, result has 53.3 percent of original size [2021-03-24 20:11:26,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:11:26,568 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:11:26,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:26,581 INFO L142 QuantifierPusher]: treesize reduction 15, result has 63.4 percent of original size [2021-03-24 20:11:26,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:11:26,595 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:11:26,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:26,615 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:11:26,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:26,625 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:11:26,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:11:26,645 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.0 percent of original size [2021-03-24 20:11:26,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:26,669 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:11:26,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:11:26,690 INFO L142 QuantifierPusher]: treesize reduction 15, result has 62.5 percent of original size [2021-03-24 20:11:26,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:11:26,711 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:11:26,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:26,730 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:26,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:26,743 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:26,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:26,757 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:11:26,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:26,776 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:26,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:26,798 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:26,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:26,817 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:26,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:26,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:26,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052770649] [2021-03-24 20:11:26,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:26,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-24 20:11:26,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454650756] [2021-03-24 20:11:26,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 20:11:26,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:26,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 20:11:26,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-03-24 20:11:26,838 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 279 [2021-03-24 20:11:26,840 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 205 transitions, 3135 flow. Second operand has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:26,840 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:26,840 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 279 [2021-03-24 20:11:26,840 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:28,377 INFO L129 PetriNetUnfolder]: 550/1635 cut-off events. [2021-03-24 20:11:28,377 INFO L130 PetriNetUnfolder]: For 15599/15677 co-relation queries the response was YES. [2021-03-24 20:11:28,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9009 conditions, 1635 events. 550/1635 cut-off events. For 15599/15677 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 13278 event pairs, 285 based on Foata normal form. 21/1643 useless extension candidates. Maximal degree in co-relation 8964. Up to 1199 conditions per place. [2021-03-24 20:11:28,389 INFO L132 encePairwiseOnDemand]: 264/279 looper letters, 168 selfloop transitions, 53 changer transitions 25/257 dead transitions. [2021-03-24 20:11:28,389 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 257 transitions, 4226 flow [2021-03-24 20:11:28,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-24 20:11:28,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-24 20:11:28,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2355 transitions. [2021-03-24 20:11:28,392 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4965211891208096 [2021-03-24 20:11:28,392 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2355 transitions. [2021-03-24 20:11:28,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2355 transitions. [2021-03-24 20:11:28,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:28,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2355 transitions. [2021-03-24 20:11:28,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 138.52941176470588) internal successors, (2355), 17 states have internal predecessors, (2355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:28,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 279.0) internal successors, (5022), 18 states have internal predecessors, (5022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:28,400 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 279.0) internal successors, (5022), 18 states have internal predecessors, (5022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:28,400 INFO L185 Difference]: Start difference. First operand has 172 places, 205 transitions, 3135 flow. Second operand 17 states and 2355 transitions. [2021-03-24 20:11:28,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 257 transitions, 4226 flow [2021-03-24 20:11:28,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 257 transitions, 4117 flow, removed 21 selfloop flow, removed 11 redundant places. [2021-03-24 20:11:28,455 INFO L241 Difference]: Finished difference. Result has 179 places, 210 transitions, 3239 flow [2021-03-24 20:11:28,455 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=3054, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3239, PETRI_PLACES=179, PETRI_TRANSITIONS=210} [2021-03-24 20:11:28,456 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 115 predicate places. [2021-03-24 20:11:28,456 INFO L480 AbstractCegarLoop]: Abstraction has has 179 places, 210 transitions, 3239 flow [2021-03-24 20:11:28,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:28,457 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:28,457 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:28,457 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-24 20:11:28,457 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]=== [2021-03-24 20:11:28,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:28,457 INFO L82 PathProgramCache]: Analyzing trace with hash 771496631, now seen corresponding path program 5 times [2021-03-24 20:11:28,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:28,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184619667] [2021-03-24 20:11:28,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:28,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:28,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:28,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:28,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:28,565 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:11:28,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:28,589 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:11:28,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:28,622 INFO L142 QuantifierPusher]: treesize reduction 29, result has 58.0 percent of original size [2021-03-24 20:11:28,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:11:28,661 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:11:28,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:28,681 INFO L142 QuantifierPusher]: treesize reduction 15, result has 63.4 percent of original size [2021-03-24 20:11:28,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:11:28,700 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:11:28,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:28,726 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:11:28,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:28,739 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.9 percent of original size [2021-03-24 20:11:28,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:28,763 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:11:28,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:28,784 INFO L142 QuantifierPusher]: treesize reduction 15, result has 63.4 percent of original size [2021-03-24 20:11:28,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:11:28,803 INFO L142 QuantifierPusher]: treesize reduction 17, result has 63.0 percent of original size [2021-03-24 20:11:28,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:11:28,822 INFO L142 QuantifierPusher]: treesize reduction 17, result has 58.5 percent of original size [2021-03-24 20:11:28,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:11:28,834 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:28,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:28,853 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:28,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:28,855 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:11:28,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:28,882 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:28,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:28,905 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:28,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:28,925 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:28,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:28,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:28,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184619667] [2021-03-24 20:11:28,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:28,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-24 20:11:28,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715477144] [2021-03-24 20:11:28,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 20:11:28,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:28,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 20:11:28,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-03-24 20:11:28,946 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 279 [2021-03-24 20:11:28,948 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 210 transitions, 3239 flow. Second operand has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:28,948 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:28,948 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 279 [2021-03-24 20:11:28,948 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:30,364 INFO L129 PetriNetUnfolder]: 533/1586 cut-off events. [2021-03-24 20:11:30,364 INFO L130 PetriNetUnfolder]: For 15382/15447 co-relation queries the response was YES. [2021-03-24 20:11:30,371 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8732 conditions, 1586 events. 533/1586 cut-off events. For 15382/15447 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 12869 event pairs, 223 based on Foata normal form. 35/1611 useless extension candidates. Maximal degree in co-relation 8684. Up to 998 conditions per place. [2021-03-24 20:11:30,376 INFO L132 encePairwiseOnDemand]: 262/279 looper letters, 132 selfloop transitions, 85 changer transitions 22/250 dead transitions. [2021-03-24 20:11:30,376 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 250 transitions, 4118 flow [2021-03-24 20:11:30,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-24 20:11:30,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-24 20:11:30,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2225 transitions. [2021-03-24 20:11:30,382 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4984318996415771 [2021-03-24 20:11:30,382 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2225 transitions. [2021-03-24 20:11:30,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2225 transitions. [2021-03-24 20:11:30,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:30,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2225 transitions. [2021-03-24 20:11:30,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 139.0625) internal successors, (2225), 16 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:30,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 279.0) internal successors, (4743), 17 states have internal predecessors, (4743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:30,389 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 279.0) internal successors, (4743), 17 states have internal predecessors, (4743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:30,389 INFO L185 Difference]: Start difference. First operand has 179 places, 210 transitions, 3239 flow. Second operand 16 states and 2225 transitions. [2021-03-24 20:11:30,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 250 transitions, 4118 flow [2021-03-24 20:11:30,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 250 transitions, 3994 flow, removed 29 selfloop flow, removed 10 redundant places. [2021-03-24 20:11:30,444 INFO L241 Difference]: Finished difference. Result has 183 places, 201 transitions, 3178 flow [2021-03-24 20:11:30,445 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=3130, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3178, PETRI_PLACES=183, PETRI_TRANSITIONS=201} [2021-03-24 20:11:30,445 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 119 predicate places. [2021-03-24 20:11:30,445 INFO L480 AbstractCegarLoop]: Abstraction has has 183 places, 201 transitions, 3178 flow [2021-03-24 20:11:30,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:30,445 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:30,446 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:30,446 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-24 20:11:30,446 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]=== [2021-03-24 20:11:30,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:30,446 INFO L82 PathProgramCache]: Analyzing trace with hash -916476601, now seen corresponding path program 6 times [2021-03-24 20:11:30,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:30,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590492103] [2021-03-24 20:11:30,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:30,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:30,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:30,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:30,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:30,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:30,544 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:11:30,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:30,567 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:11:30,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:11:30,599 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-03-24 20:11:30,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 20:11:30,642 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-24 20:11:30,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:11:30,696 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-24 20:11:30,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:11:30,748 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-03-24 20:11:30,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 20:11:30,749 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:11:30,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:30,776 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 20:11:30,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:11:30,796 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:11:30,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:30,822 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:11:30,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:30,836 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 20:11:30,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:30,861 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:11:30,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:30,887 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 20:11:30,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:11:30,911 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 20:11:30,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:11:30,936 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:11:30,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:11:30,953 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 20:11:30,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:11:30,977 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:11:30,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:31,002 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:31,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:31,030 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:31,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:31,055 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:31,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:31,056 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:31,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:31,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:31,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590492103] [2021-03-24 20:11:31,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:31,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-24 20:11:31,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198179371] [2021-03-24 20:11:31,084 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-24 20:11:31,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:31,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-24 20:11:31,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-03-24 20:11:31,086 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 279 [2021-03-24 20:11:31,087 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 201 transitions, 3178 flow. Second operand has 20 states, 20 states have (on average 79.65) internal successors, (1593), 20 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:31,087 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:31,087 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 279 [2021-03-24 20:11:31,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:32,634 INFO L129 PetriNetUnfolder]: 510/1494 cut-off events. [2021-03-24 20:11:32,634 INFO L130 PetriNetUnfolder]: For 15259/15328 co-relation queries the response was YES. [2021-03-24 20:11:32,641 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8482 conditions, 1494 events. 510/1494 cut-off events. For 15259/15328 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 11832 event pairs, 218 based on Foata normal form. 34/1520 useless extension candidates. Maximal degree in co-relation 8435. Up to 958 conditions per place. [2021-03-24 20:11:32,645 INFO L132 encePairwiseOnDemand]: 262/279 looper letters, 129 selfloop transitions, 85 changer transitions 18/238 dead transitions. [2021-03-24 20:11:32,645 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 238 transitions, 3974 flow [2021-03-24 20:11:32,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:11:32,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:11:32,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1495 transitions. [2021-03-24 20:11:32,654 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2976901632815611 [2021-03-24 20:11:32,654 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1495 transitions. [2021-03-24 20:11:32,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1495 transitions. [2021-03-24 20:11:32,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:32,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1495 transitions. [2021-03-24 20:11:32,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 83.05555555555556) internal successors, (1495), 18 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:32,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 279.0) internal successors, (5301), 19 states have internal predecessors, (5301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:32,660 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 279.0) internal successors, (5301), 19 states have internal predecessors, (5301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:32,661 INFO L185 Difference]: Start difference. First operand has 183 places, 201 transitions, 3178 flow. Second operand 18 states and 1495 transitions. [2021-03-24 20:11:32,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 238 transitions, 3974 flow [2021-03-24 20:11:32,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 238 transitions, 3777 flow, removed 4 selfloop flow, removed 14 redundant places. [2021-03-24 20:11:32,715 INFO L241 Difference]: Finished difference. Result has 182 places, 193 transitions, 3024 flow [2021-03-24 20:11:32,715 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=2971, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3024, PETRI_PLACES=182, PETRI_TRANSITIONS=193} [2021-03-24 20:11:32,716 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 118 predicate places. [2021-03-24 20:11:32,716 INFO L480 AbstractCegarLoop]: Abstraction has has 182 places, 193 transitions, 3024 flow [2021-03-24 20:11:32,716 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 79.65) internal successors, (1593), 20 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:32,716 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:32,716 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:32,716 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-24 20:11:32,716 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]=== [2021-03-24 20:11:32,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:32,717 INFO L82 PathProgramCache]: Analyzing trace with hash 404220635, now seen corresponding path program 7 times [2021-03-24 20:11:32,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:32,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859988656] [2021-03-24 20:11:32,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:32,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:32,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:32,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:32,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:32,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:32,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:32,837 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 20:11:32,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:32,851 INFO L142 QuantifierPusher]: treesize reduction 28, result has 53.3 percent of original size [2021-03-24 20:11:32,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:11:32,871 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:11:32,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:32,890 INFO L142 QuantifierPusher]: treesize reduction 15, result has 63.4 percent of original size [2021-03-24 20:11:32,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:11:32,910 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:11:32,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:32,934 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:11:32,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:32,944 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.9 percent of original size [2021-03-24 20:11:32,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:32,976 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.0 percent of original size [2021-03-24 20:11:32,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:33,013 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:11:33,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:11:33,035 INFO L142 QuantifierPusher]: treesize reduction 15, result has 62.5 percent of original size [2021-03-24 20:11:33,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:11:33,059 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:11:33,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:33,083 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:33,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:33,100 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:33,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:33,118 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:11:33,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:33,143 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:33,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:33,170 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:33,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:33,195 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:33,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:33,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:33,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859988656] [2021-03-24 20:11:33,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:33,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-24 20:11:33,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956137375] [2021-03-24 20:11:33,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 20:11:33,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:33,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 20:11:33,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-03-24 20:11:33,218 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 279 [2021-03-24 20:11:33,219 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 193 transitions, 3024 flow. Second operand has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:33,219 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:33,219 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 279 [2021-03-24 20:11:33,219 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:34,781 INFO L129 PetriNetUnfolder]: 510/1502 cut-off events. [2021-03-24 20:11:34,781 INFO L130 PetriNetUnfolder]: For 15185/15246 co-relation queries the response was YES. [2021-03-24 20:11:34,787 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8398 conditions, 1502 events. 510/1502 cut-off events. For 15185/15246 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 11824 event pairs, 257 based on Foata normal form. 22/1511 useless extension candidates. Maximal degree in co-relation 8352. Up to 1064 conditions per place. [2021-03-24 20:11:34,790 INFO L132 encePairwiseOnDemand]: 264/279 looper letters, 141 selfloop transitions, 57 changer transitions 33/242 dead transitions. [2021-03-24 20:11:34,790 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 242 transitions, 3988 flow [2021-03-24 20:11:34,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:11:34,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:11:34,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2496 transitions. [2021-03-24 20:11:34,794 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4970131421744325 [2021-03-24 20:11:34,794 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2496 transitions. [2021-03-24 20:11:34,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2496 transitions. [2021-03-24 20:11:34,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:34,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2496 transitions. [2021-03-24 20:11:34,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 138.66666666666666) internal successors, (2496), 18 states have internal predecessors, (2496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:34,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 279.0) internal successors, (5301), 19 states have internal predecessors, (5301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:34,801 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 279.0) internal successors, (5301), 19 states have internal predecessors, (5301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:34,801 INFO L185 Difference]: Start difference. First operand has 182 places, 193 transitions, 3024 flow. Second operand 18 states and 2496 transitions. [2021-03-24 20:11:34,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 242 transitions, 3988 flow [2021-03-24 20:11:34,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 242 transitions, 3741 flow, removed 9 selfloop flow, removed 17 redundant places. [2021-03-24 20:11:34,856 INFO L241 Difference]: Finished difference. Result has 181 places, 184 transitions, 2870 flow [2021-03-24 20:11:34,857 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=2800, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2870, PETRI_PLACES=181, PETRI_TRANSITIONS=184} [2021-03-24 20:11:34,857 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 117 predicate places. [2021-03-24 20:11:34,857 INFO L480 AbstractCegarLoop]: Abstraction has has 181 places, 184 transitions, 2870 flow [2021-03-24 20:11:34,857 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:34,858 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:34,858 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:34,858 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-24 20:11:34,858 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]=== [2021-03-24 20:11:34,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:34,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1053511285, now seen corresponding path program 8 times [2021-03-24 20:11:34,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:34,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572951714] [2021-03-24 20:11:34,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:34,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:34,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:34,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:34,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:34,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 20:11:34,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:34,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 20:11:34,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:34,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 20:11:34,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:34,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 20:11:34,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:34,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 20:11:34,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:34,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 20:11:34,957 INFO L142 QuantifierPusher]: treesize reduction 13, result has 74.0 percent of original size [2021-03-24 20:11:34,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:11:34,990 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:34,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:34,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:34,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:34,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:34,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572951714] [2021-03-24 20:11:34,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:34,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-24 20:11:34,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506947262] [2021-03-24 20:11:34,993 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 20:11:34,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:34,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 20:11:34,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-24 20:11:34,995 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 279 [2021-03-24 20:11:34,996 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 184 transitions, 2870 flow. Second operand has 8 states, 8 states have (on average 149.5) internal successors, (1196), 8 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:34,996 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:34,996 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 279 [2021-03-24 20:11:34,996 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:35,098 INFO L129 PetriNetUnfolder]: 11/153 cut-off events. [2021-03-24 20:11:35,098 INFO L130 PetriNetUnfolder]: For 1778/1787 co-relation queries the response was YES. [2021-03-24 20:11:35,099 INFO L84 FinitePrefix]: Finished finitePrefix Result has 805 conditions, 153 events. 11/153 cut-off events. For 1778/1787 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 648 event pairs, 1 based on Foata normal form. 15/168 useless extension candidates. Maximal degree in co-relation 755. Up to 33 conditions per place. [2021-03-24 20:11:35,099 INFO L132 encePairwiseOnDemand]: 270/279 looper letters, 25 selfloop transitions, 11 changer transitions 0/84 dead transitions. [2021-03-24 20:11:35,099 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 84 transitions, 1066 flow [2021-03-24 20:11:35,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-24 20:11:35,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-24 20:11:35,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1197 transitions. [2021-03-24 20:11:35,101 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5362903225806451 [2021-03-24 20:11:35,101 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1197 transitions. [2021-03-24 20:11:35,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1197 transitions. [2021-03-24 20:11:35,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:35,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1197 transitions. [2021-03-24 20:11:35,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 149.625) internal successors, (1197), 8 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:35,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 279.0) internal successors, (2511), 9 states have internal predecessors, (2511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:35,104 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 279.0) internal successors, (2511), 9 states have internal predecessors, (2511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:35,104 INFO L185 Difference]: Start difference. First operand has 181 places, 184 transitions, 2870 flow. Second operand 8 states and 1197 transitions. [2021-03-24 20:11:35,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 84 transitions, 1066 flow [2021-03-24 20:11:35,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 84 transitions, 787 flow, removed 40 selfloop flow, removed 46 redundant places. [2021-03-24 20:11:35,111 INFO L241 Difference]: Finished difference. Result has 122 places, 84 transitions, 750 flow [2021-03-24 20:11:35,111 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=715, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=750, PETRI_PLACES=122, PETRI_TRANSITIONS=84} [2021-03-24 20:11:35,111 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 58 predicate places. [2021-03-24 20:11:35,111 INFO L480 AbstractCegarLoop]: Abstraction has has 122 places, 84 transitions, 750 flow [2021-03-24 20:11:35,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 149.5) internal successors, (1196), 8 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:35,111 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:35,112 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:35,112 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-24 20:11:35,112 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]=== [2021-03-24 20:11:35,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:35,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1824748231, now seen corresponding path program 1 times [2021-03-24 20:11:35,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:35,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723667295] [2021-03-24 20:11:35,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:35,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:35,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:35,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:35,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 20:11:35,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:35,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-24 20:11:35,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:35,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-24 20:11:35,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:35,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:35,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:35,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 20:11:35,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:35,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 20:11:35,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:35,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:35,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:35,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:35,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:35,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 20:11:35,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:35,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:35,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:35,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723667295] [2021-03-24 20:11:35,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:35,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-24 20:11:35,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010954211] [2021-03-24 20:11:35,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-24 20:11:35,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:35,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-24 20:11:35,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-24 20:11:35,245 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 279 [2021-03-24 20:11:35,245 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 84 transitions, 750 flow. Second operand has 9 states, 9 states have (on average 143.0) internal successors, (1287), 9 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:35,245 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:35,245 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 279 [2021-03-24 20:11:35,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:35,594 INFO L129 PetriNetUnfolder]: 34/193 cut-off events. [2021-03-24 20:11:35,595 INFO L130 PetriNetUnfolder]: For 972/977 co-relation queries the response was YES. [2021-03-24 20:11:35,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 864 conditions, 193 events. 34/193 cut-off events. For 972/977 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 791 event pairs, 19 based on Foata normal form. 11/204 useless extension candidates. Maximal degree in co-relation 837. Up to 89 conditions per place. [2021-03-24 20:11:35,596 INFO L132 encePairwiseOnDemand]: 268/279 looper letters, 56 selfloop transitions, 30 changer transitions 0/96 dead transitions. [2021-03-24 20:11:35,596 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 96 transitions, 995 flow [2021-03-24 20:11:35,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 20:11:35,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 20:11:35,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1736 transitions. [2021-03-24 20:11:35,598 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5185185185185185 [2021-03-24 20:11:35,598 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1736 transitions. [2021-03-24 20:11:35,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1736 transitions. [2021-03-24 20:11:35,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:35,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1736 transitions. [2021-03-24 20:11:35,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 144.66666666666666) internal successors, (1736), 12 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:35,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 279.0) internal successors, (3627), 13 states have internal predecessors, (3627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:35,603 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 279.0) internal successors, (3627), 13 states have internal predecessors, (3627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:35,603 INFO L185 Difference]: Start difference. First operand has 122 places, 84 transitions, 750 flow. Second operand 12 states and 1736 transitions. [2021-03-24 20:11:35,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 96 transitions, 995 flow [2021-03-24 20:11:35,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 96 transitions, 965 flow, removed 1 selfloop flow, removed 7 redundant places. [2021-03-24 20:11:35,609 INFO L241 Difference]: Finished difference. Result has 128 places, 84 transitions, 818 flow [2021-03-24 20:11:35,609 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=719, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=818, PETRI_PLACES=128, PETRI_TRANSITIONS=84} [2021-03-24 20:11:35,609 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 64 predicate places. [2021-03-24 20:11:35,609 INFO L480 AbstractCegarLoop]: Abstraction has has 128 places, 84 transitions, 818 flow [2021-03-24 20:11:35,610 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 143.0) internal successors, (1287), 9 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:35,610 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:35,610 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:35,610 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-24 20:11:35,610 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]=== [2021-03-24 20:11:35,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:35,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1308246743, now seen corresponding path program 9 times [2021-03-24 20:11:35,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:35,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975791845] [2021-03-24 20:11:35,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:35,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:35,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:35,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:35,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:35,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:35,705 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:11:35,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:35,729 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:11:35,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:11:35,763 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-03-24 20:11:35,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 20:11:35,812 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:11:35,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:35,827 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 20:11:35,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:11:35,841 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:11:35,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:35,861 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:11:35,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:35,870 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 20:11:35,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:35,889 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:11:35,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:35,909 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 20:11:35,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:11:35,926 INFO L142 QuantifierPusher]: treesize reduction 12, result has 67.6 percent of original size [2021-03-24 20:11:35,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:11:35,944 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:11:35,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:35,964 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:35,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:35,977 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:11:35,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:35,995 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:35,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:36,016 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:36,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:36,034 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:36,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:36,037 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:36,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:36,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:36,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975791845] [2021-03-24 20:11:36,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:36,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-24 20:11:36,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012208887] [2021-03-24 20:11:36,055 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 20:11:36,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:36,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 20:11:36,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-03-24 20:11:36,057 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 279 [2021-03-24 20:11:36,059 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 84 transitions, 818 flow. Second operand has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:36,059 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:36,059 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 279 [2021-03-24 20:11:36,059 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:37,214 INFO L129 PetriNetUnfolder]: 29/198 cut-off events. [2021-03-24 20:11:37,214 INFO L130 PetriNetUnfolder]: For 1268/1276 co-relation queries the response was YES. [2021-03-24 20:11:37,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 918 conditions, 198 events. 29/198 cut-off events. For 1268/1276 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 883 event pairs, 10 based on Foata normal form. 3/201 useless extension candidates. Maximal degree in co-relation 889. Up to 87 conditions per place. [2021-03-24 20:11:37,215 INFO L132 encePairwiseOnDemand]: 264/279 looper letters, 59 selfloop transitions, 21 changer transitions 11/102 dead transitions. [2021-03-24 20:11:37,216 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 102 transitions, 1163 flow [2021-03-24 20:11:37,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 20:11:37,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 20:11:37,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2067 transitions. [2021-03-24 20:11:37,218 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4939068100358423 [2021-03-24 20:11:37,218 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2067 transitions. [2021-03-24 20:11:37,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2067 transitions. [2021-03-24 20:11:37,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:37,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2067 transitions. [2021-03-24 20:11:37,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 137.8) internal successors, (2067), 15 states have internal predecessors, (2067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:37,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 279.0) internal successors, (4464), 16 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:37,224 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 279.0) internal successors, (4464), 16 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:37,224 INFO L185 Difference]: Start difference. First operand has 128 places, 84 transitions, 818 flow. Second operand 15 states and 2067 transitions. [2021-03-24 20:11:37,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 102 transitions, 1163 flow [2021-03-24 20:11:37,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 102 transitions, 1096 flow, removed 4 selfloop flow, removed 7 redundant places. [2021-03-24 20:11:37,230 INFO L241 Difference]: Finished difference. Result has 141 places, 86 transitions, 835 flow [2021-03-24 20:11:37,230 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=757, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=835, PETRI_PLACES=141, PETRI_TRANSITIONS=86} [2021-03-24 20:11:37,230 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 77 predicate places. [2021-03-24 20:11:37,230 INFO L480 AbstractCegarLoop]: Abstraction has has 141 places, 86 transitions, 835 flow [2021-03-24 20:11:37,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:37,231 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:37,231 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:37,231 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-24 20:11:37,231 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]=== [2021-03-24 20:11:37,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:37,232 INFO L82 PathProgramCache]: Analyzing trace with hash 79561405, now seen corresponding path program 10 times [2021-03-24 20:11:37,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:37,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513645043] [2021-03-24 20:11:37,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:37,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:37,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:37,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:37,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:37,336 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:11:37,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:37,359 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:11:37,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:11:37,391 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-03-24 20:11:37,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 20:11:37,441 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:11:37,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:37,461 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 20:11:37,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:11:37,480 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:11:37,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:37,505 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:11:37,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:37,518 INFO L142 QuantifierPusher]: treesize reduction 19, result has 63.5 percent of original size [2021-03-24 20:11:37,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:11:37,542 INFO L142 QuantifierPusher]: treesize reduction 24, result has 52.9 percent of original size [2021-03-24 20:11:37,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:37,569 INFO L142 QuantifierPusher]: treesize reduction 19, result has 63.5 percent of original size [2021-03-24 20:11:37,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:11:37,591 INFO L142 QuantifierPusher]: treesize reduction 12, result has 67.6 percent of original size [2021-03-24 20:11:37,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:11:37,609 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:11:37,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:37,629 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:37,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:37,652 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:11:37,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:37,675 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:37,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:37,696 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:37,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:37,729 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:37,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:37,730 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:37,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:37,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:37,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513645043] [2021-03-24 20:11:37,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:37,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-24 20:11:37,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432238938] [2021-03-24 20:11:37,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 20:11:37,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:37,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 20:11:37,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-03-24 20:11:37,754 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 279 [2021-03-24 20:11:37,755 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 86 transitions, 835 flow. Second operand has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:37,755 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:37,755 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 279 [2021-03-24 20:11:37,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:38,751 INFO L129 PetriNetUnfolder]: 27/195 cut-off events. [2021-03-24 20:11:38,752 INFO L130 PetriNetUnfolder]: For 1217/1225 co-relation queries the response was YES. [2021-03-24 20:11:38,752 INFO L84 FinitePrefix]: Finished finitePrefix Result has 938 conditions, 195 events. 27/195 cut-off events. For 1217/1225 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 881 event pairs, 16 based on Foata normal form. 4/198 useless extension candidates. Maximal degree in co-relation 905. Up to 109 conditions per place. [2021-03-24 20:11:38,752 INFO L132 encePairwiseOnDemand]: 264/279 looper letters, 54 selfloop transitions, 15 changer transitions 19/99 dead transitions. [2021-03-24 20:11:38,752 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 99 transitions, 1140 flow [2021-03-24 20:11:38,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 20:11:38,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 20:11:38,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2061 transitions. [2021-03-24 20:11:38,754 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4924731182795699 [2021-03-24 20:11:38,754 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2061 transitions. [2021-03-24 20:11:38,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2061 transitions. [2021-03-24 20:11:38,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:38,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2061 transitions. [2021-03-24 20:11:38,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 137.4) internal successors, (2061), 15 states have internal predecessors, (2061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:38,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 279.0) internal successors, (4464), 16 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:38,760 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 279.0) internal successors, (4464), 16 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:38,760 INFO L185 Difference]: Start difference. First operand has 141 places, 86 transitions, 835 flow. Second operand 15 states and 2061 transitions. [2021-03-24 20:11:38,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 99 transitions, 1140 flow [2021-03-24 20:11:38,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 99 transitions, 1070 flow, removed 13 selfloop flow, removed 11 redundant places. [2021-03-24 20:11:38,766 INFO L241 Difference]: Finished difference. Result has 145 places, 80 transitions, 742 flow [2021-03-24 20:11:38,767 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=775, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=742, PETRI_PLACES=145, PETRI_TRANSITIONS=80} [2021-03-24 20:11:38,767 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 81 predicate places. [2021-03-24 20:11:38,767 INFO L480 AbstractCegarLoop]: Abstraction has has 145 places, 80 transitions, 742 flow [2021-03-24 20:11:38,767 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:38,767 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:38,767 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:38,768 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-24 20:11:38,768 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]=== [2021-03-24 20:11:38,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:38,768 INFO L82 PathProgramCache]: Analyzing trace with hash 285010131, now seen corresponding path program 11 times [2021-03-24 20:11:38,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:38,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383733606] [2021-03-24 20:11:38,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:38,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:38,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:38,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:38,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:38,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:38,859 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:11:38,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:38,882 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:11:38,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:11:38,914 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-03-24 20:11:38,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 20:11:38,963 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:11:38,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:38,982 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 20:11:38,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:11:39,001 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:11:39,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:39,026 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:11:39,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:39,039 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 20:11:39,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:39,063 INFO L142 QuantifierPusher]: treesize reduction 24, result has 52.9 percent of original size [2021-03-24 20:11:39,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:39,087 INFO L142 QuantifierPusher]: treesize reduction 19, result has 63.5 percent of original size [2021-03-24 20:11:39,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:11:39,108 INFO L142 QuantifierPusher]: treesize reduction 12, result has 67.6 percent of original size [2021-03-24 20:11:39,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:11:39,127 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:11:39,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:39,147 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:39,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:39,161 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:11:39,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:39,180 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:39,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:39,201 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:39,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:39,219 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:39,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:39,220 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:39,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:39,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:39,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383733606] [2021-03-24 20:11:39,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:39,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-24 20:11:39,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199057824] [2021-03-24 20:11:39,239 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 20:11:39,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:39,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 20:11:39,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-03-24 20:11:39,241 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 279 [2021-03-24 20:11:39,242 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 80 transitions, 742 flow. Second operand has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:39,243 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:39,243 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 279 [2021-03-24 20:11:39,243 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:40,260 INFO L129 PetriNetUnfolder]: 27/160 cut-off events. [2021-03-24 20:11:40,261 INFO L130 PetriNetUnfolder]: For 926/933 co-relation queries the response was YES. [2021-03-24 20:11:40,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 759 conditions, 160 events. 27/160 cut-off events. For 926/933 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 614 event pairs, 16 based on Foata normal form. 2/161 useless extension candidates. Maximal degree in co-relation 724. Up to 99 conditions per place. [2021-03-24 20:11:40,261 INFO L132 encePairwiseOnDemand]: 264/279 looper letters, 48 selfloop transitions, 13 changer transitions 13/85 dead transitions. [2021-03-24 20:11:40,261 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 85 transitions, 919 flow [2021-03-24 20:11:40,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 20:11:40,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 20:11:40,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2059 transitions. [2021-03-24 20:11:40,263 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4919952210274791 [2021-03-24 20:11:40,263 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2059 transitions. [2021-03-24 20:11:40,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2059 transitions. [2021-03-24 20:11:40,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:40,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2059 transitions. [2021-03-24 20:11:40,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 137.26666666666668) internal successors, (2059), 15 states have internal predecessors, (2059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:40,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 279.0) internal successors, (4464), 16 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:40,269 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 279.0) internal successors, (4464), 16 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:40,269 INFO L185 Difference]: Start difference. First operand has 145 places, 80 transitions, 742 flow. Second operand 15 states and 2059 transitions. [2021-03-24 20:11:40,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 85 transitions, 919 flow [2021-03-24 20:11:40,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 85 transitions, 821 flow, removed 11 selfloop flow, removed 18 redundant places. [2021-03-24 20:11:40,274 INFO L241 Difference]: Finished difference. Result has 135 places, 72 transitions, 585 flow [2021-03-24 20:11:40,275 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=639, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=585, PETRI_PLACES=135, PETRI_TRANSITIONS=72} [2021-03-24 20:11:40,275 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 71 predicate places. [2021-03-24 20:11:40,275 INFO L480 AbstractCegarLoop]: Abstraction has has 135 places, 72 transitions, 585 flow [2021-03-24 20:11:40,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:40,275 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:40,275 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:40,275 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-24 20:11:40,276 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]=== [2021-03-24 20:11:40,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:40,276 INFO L82 PathProgramCache]: Analyzing trace with hash 454148075, now seen corresponding path program 12 times [2021-03-24 20:11:40,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:40,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745094216] [2021-03-24 20:11:40,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:40,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:40,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:40,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:40,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:40,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:40,370 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:11:40,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:40,393 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:11:40,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:11:40,422 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-03-24 20:11:40,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 20:11:40,454 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:11:40,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:40,470 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 20:11:40,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:11:40,484 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:11:40,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:40,504 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:11:40,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:40,514 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 20:11:40,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:40,532 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:11:40,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:40,553 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 20:11:40,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:11:40,571 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 20:11:40,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:11:40,603 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:11:40,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:40,640 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:40,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:40,653 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:11:40,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:40,672 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:40,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:40,693 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:40,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:40,712 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:40,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:40,713 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:40,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:40,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:40,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745094216] [2021-03-24 20:11:40,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:40,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-24 20:11:40,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836376242] [2021-03-24 20:11:40,732 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 20:11:40,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:40,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 20:11:40,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-03-24 20:11:40,734 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 279 [2021-03-24 20:11:40,735 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 72 transitions, 585 flow. Second operand has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:40,735 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:40,735 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 279 [2021-03-24 20:11:40,735 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:41,701 INFO L129 PetriNetUnfolder]: 31/165 cut-off events. [2021-03-24 20:11:41,701 INFO L130 PetriNetUnfolder]: For 695/706 co-relation queries the response was YES. [2021-03-24 20:11:41,701 INFO L84 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 165 events. 31/165 cut-off events. For 695/706 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 631 event pairs, 10 based on Foata normal form. 2/167 useless extension candidates. Maximal degree in co-relation 696. Up to 74 conditions per place. [2021-03-24 20:11:41,702 INFO L132 encePairwiseOnDemand]: 264/279 looper letters, 43 selfloop transitions, 18 changer transitions 12/84 dead transitions. [2021-03-24 20:11:41,702 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 84 transitions, 819 flow [2021-03-24 20:11:41,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 20:11:41,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 20:11:41,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2063 transitions. [2021-03-24 20:11:41,704 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4929510155316607 [2021-03-24 20:11:41,704 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2063 transitions. [2021-03-24 20:11:41,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2063 transitions. [2021-03-24 20:11:41,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:41,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2063 transitions. [2021-03-24 20:11:41,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 137.53333333333333) internal successors, (2063), 15 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:41,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 279.0) internal successors, (4464), 16 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:41,709 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 279.0) internal successors, (4464), 16 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:41,709 INFO L185 Difference]: Start difference. First operand has 135 places, 72 transitions, 585 flow. Second operand 15 states and 2063 transitions. [2021-03-24 20:11:41,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 84 transitions, 819 flow [2021-03-24 20:11:41,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 84 transitions, 727 flow, removed 4 selfloop flow, removed 19 redundant places. [2021-03-24 20:11:41,713 INFO L241 Difference]: Finished difference. Result has 121 places, 69 transitions, 510 flow [2021-03-24 20:11:41,713 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=510, PETRI_PLACES=121, PETRI_TRANSITIONS=69} [2021-03-24 20:11:41,713 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 57 predicate places. [2021-03-24 20:11:41,713 INFO L480 AbstractCegarLoop]: Abstraction has has 121 places, 69 transitions, 510 flow [2021-03-24 20:11:41,714 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:41,714 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:41,714 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:41,714 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-24 20:11:41,714 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]=== [2021-03-24 20:11:41,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:41,715 INFO L82 PathProgramCache]: Analyzing trace with hash -460890333, now seen corresponding path program 13 times [2021-03-24 20:11:41,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:41,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426978578] [2021-03-24 20:11:41,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:41,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:41,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:41,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:41,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:41,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:41,805 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:11:41,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:41,827 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:11:41,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:11:41,857 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-03-24 20:11:41,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 20:11:41,891 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-24 20:11:41,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:11:41,941 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-03-24 20:11:41,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 20:11:41,942 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:11:41,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:41,957 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 20:11:41,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:11:41,971 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:11:41,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:41,992 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:11:41,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:42,002 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 20:11:42,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:42,026 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:11:42,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:42,047 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 20:11:42,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:11:42,065 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 20:11:42,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:11:42,084 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:11:42,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:11:42,106 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 20:11:42,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:11:42,125 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:11:42,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:42,145 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:42,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:42,166 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:42,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:42,193 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:42,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:42,193 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:42,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:42,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:42,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426978578] [2021-03-24 20:11:42,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:42,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-24 20:11:42,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493384552] [2021-03-24 20:11:42,213 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-24 20:11:42,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:42,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-24 20:11:42,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-03-24 20:11:42,214 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 279 [2021-03-24 20:11:42,215 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 69 transitions, 510 flow. Second operand has 19 states, 19 states have (on average 85.73684210526316) internal successors, (1629), 19 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:42,215 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:42,215 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 279 [2021-03-24 20:11:42,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:43,335 INFO L129 PetriNetUnfolder]: 26/149 cut-off events. [2021-03-24 20:11:43,335 INFO L130 PetriNetUnfolder]: For 517/524 co-relation queries the response was YES. [2021-03-24 20:11:43,336 INFO L84 FinitePrefix]: Finished finitePrefix Result has 636 conditions, 149 events. 26/149 cut-off events. For 517/524 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 548 event pairs, 9 based on Foata normal form. 2/151 useless extension candidates. Maximal degree in co-relation 608. Up to 57 conditions per place. [2021-03-24 20:11:43,336 INFO L132 encePairwiseOnDemand]: 263/279 looper letters, 40 selfloop transitions, 15 changer transitions 25/84 dead transitions. [2021-03-24 20:11:43,336 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 84 transitions, 759 flow [2021-03-24 20:11:43,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-24 20:11:43,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-24 20:11:43,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1492 transitions. [2021-03-24 20:11:43,338 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.31456883828800336 [2021-03-24 20:11:43,338 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1492 transitions. [2021-03-24 20:11:43,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1492 transitions. [2021-03-24 20:11:43,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:43,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1492 transitions. [2021-03-24 20:11:43,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 87.76470588235294) internal successors, (1492), 17 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:43,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 279.0) internal successors, (5022), 18 states have internal predecessors, (5022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:43,343 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 279.0) internal successors, (5022), 18 states have internal predecessors, (5022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:43,343 INFO L185 Difference]: Start difference. First operand has 121 places, 69 transitions, 510 flow. Second operand 17 states and 1492 transitions. [2021-03-24 20:11:43,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 84 transitions, 759 flow [2021-03-24 20:11:43,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 84 transitions, 696 flow, removed 5 selfloop flow, removed 12 redundant places. [2021-03-24 20:11:43,347 INFO L241 Difference]: Finished difference. Result has 121 places, 57 transitions, 380 flow [2021-03-24 20:11:43,347 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=380, PETRI_PLACES=121, PETRI_TRANSITIONS=57} [2021-03-24 20:11:43,347 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 57 predicate places. [2021-03-24 20:11:43,347 INFO L480 AbstractCegarLoop]: Abstraction has has 121 places, 57 transitions, 380 flow [2021-03-24 20:11:43,348 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 85.73684210526316) internal successors, (1629), 19 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:43,348 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:43,348 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:43,348 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-24 20:11:43,348 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]=== [2021-03-24 20:11:43,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:43,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1459394297, now seen corresponding path program 14 times [2021-03-24 20:11:43,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:43,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062992855] [2021-03-24 20:11:43,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:43,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:43,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:43,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:43,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:43,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:43,445 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:11:43,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:43,471 INFO L142 QuantifierPusher]: treesize reduction 22, result has 59.3 percent of original size [2021-03-24 20:11:43,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:11:43,501 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.1 percent of original size [2021-03-24 20:11:43,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:11:43,538 INFO L142 QuantifierPusher]: treesize reduction 13, result has 72.3 percent of original size [2021-03-24 20:11:43,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:43,552 INFO L142 QuantifierPusher]: treesize reduction 13, result has 66.7 percent of original size [2021-03-24 20:11:43,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:11:43,567 INFO L142 QuantifierPusher]: treesize reduction 13, result has 65.8 percent of original size [2021-03-24 20:11:43,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:11:43,581 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.3 percent of original size [2021-03-24 20:11:43,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:11:43,602 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:11:43,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:11:43,613 INFO L142 QuantifierPusher]: treesize reduction 22, result has 55.1 percent of original size [2021-03-24 20:11:43,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:43,632 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:11:43,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:11:43,655 INFO L142 QuantifierPusher]: treesize reduction 20, result has 63.0 percent of original size [2021-03-24 20:11:43,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:43,676 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.4 percent of original size [2021-03-24 20:11:43,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:11:43,698 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-24 20:11:43,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:11:43,712 INFO L142 QuantifierPusher]: treesize reduction 46, result has 35.2 percent of original size [2021-03-24 20:11:43,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:11:43,748 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:11:43,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:43,769 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:11:43,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:43,788 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:11:43,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:43,789 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:43,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:43,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:43,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062992855] [2021-03-24 20:11:43,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:43,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-24 20:11:43,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323468230] [2021-03-24 20:11:43,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 20:11:43,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:43,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 20:11:43,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-03-24 20:11:43,809 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 279 [2021-03-24 20:11:43,810 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 57 transitions, 380 flow. Second operand has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:43,810 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:43,810 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 279 [2021-03-24 20:11:43,810 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:44,793 INFO L129 PetriNetUnfolder]: 15/96 cut-off events. [2021-03-24 20:11:44,793 INFO L130 PetriNetUnfolder]: For 238/240 co-relation queries the response was YES. [2021-03-24 20:11:44,793 INFO L84 FinitePrefix]: Finished finitePrefix Result has 384 conditions, 96 events. 15/96 cut-off events. For 238/240 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 211 event pairs, 9 based on Foata normal form. 1/97 useless extension candidates. Maximal degree in co-relation 357. Up to 52 conditions per place. [2021-03-24 20:11:44,794 INFO L132 encePairwiseOnDemand]: 264/279 looper letters, 30 selfloop transitions, 8 changer transitions 14/61 dead transitions. [2021-03-24 20:11:44,794 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 61 transitions, 498 flow [2021-03-24 20:11:44,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 20:11:44,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 20:11:44,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2053 transitions. [2021-03-24 20:11:44,804 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49056152927120666 [2021-03-24 20:11:44,804 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2053 transitions. [2021-03-24 20:11:44,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2053 transitions. [2021-03-24 20:11:44,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:44,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2053 transitions. [2021-03-24 20:11:44,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 136.86666666666667) internal successors, (2053), 15 states have internal predecessors, (2053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:44,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 279.0) internal successors, (4464), 16 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:44,809 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 279.0) internal successors, (4464), 16 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:44,809 INFO L185 Difference]: Start difference. First operand has 121 places, 57 transitions, 380 flow. Second operand 15 states and 2053 transitions. [2021-03-24 20:11:44,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 61 transitions, 498 flow [2021-03-24 20:11:44,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 61 transitions, 371 flow, removed 5 selfloop flow, removed 32 redundant places. [2021-03-24 20:11:44,812 INFO L241 Difference]: Finished difference. Result has 96 places, 47 transitions, 216 flow [2021-03-24 20:11:44,812 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=216, PETRI_PLACES=96, PETRI_TRANSITIONS=47} [2021-03-24 20:11:44,813 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 32 predicate places. [2021-03-24 20:11:44,813 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 47 transitions, 216 flow [2021-03-24 20:11:44,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:44,813 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:44,813 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:44,813 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-24 20:11:44,813 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]=== [2021-03-24 20:11:44,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:44,814 INFO L82 PathProgramCache]: Analyzing trace with hash -2097713919, now seen corresponding path program 15 times [2021-03-24 20:11:44,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:44,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413065815] [2021-03-24 20:11:44,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:44,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:44,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:44,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:44,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:44,919 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:11:44,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:44,941 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 20:11:44,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:11:44,969 INFO L142 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-03-24 20:11:44,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:11:45,006 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:11:45,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:45,023 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 20:11:45,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:11:45,040 INFO L142 QuantifierPusher]: treesize reduction 12, result has 67.6 percent of original size [2021-03-24 20:11:45,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:11:45,058 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-24 20:11:45,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:11:45,106 INFO L142 QuantifierPusher]: treesize reduction 20, result has 69.2 percent of original size [2021-03-24 20:11:45,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 20:11:45,122 INFO L142 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size [2021-03-24 20:11:45,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:45,160 INFO L142 QuantifierPusher]: treesize reduction 20, result has 73.3 percent of original size [2021-03-24 20:11:45,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:11:45,200 INFO L142 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size [2021-03-24 20:11:45,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:45,232 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size [2021-03-24 20:11:45,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:11:45,253 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 20:11:45,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:11:45,267 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 20:11:45,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:11:45,268 INFO L142 QuantifierPusher]: treesize reduction 41, result has 40.6 percent of original size [2021-03-24 20:11:45,272 INFO L147 QuantifierPusher]: treesize reduction 3, result has 89.3 percent of original size 25 [2021-03-24 20:11:45,303 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:45,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:45,324 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 20:11:45,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:45,343 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:45,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:45,361 INFO L142 QuantifierPusher]: treesize reduction 8, result has 68.0 percent of original size [2021-03-24 20:11:45,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:45,382 INFO L142 QuantifierPusher]: treesize reduction 8, result has 68.0 percent of original size [2021-03-24 20:11:45,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:45,405 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:45,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:45,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:45,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413065815] [2021-03-24 20:11:45,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:45,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-24 20:11:45,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611553377] [2021-03-24 20:11:45,406 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-24 20:11:45,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:45,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-24 20:11:45,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2021-03-24 20:11:45,407 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 279 [2021-03-24 20:11:45,408 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 47 transitions, 216 flow. Second operand has 20 states, 20 states have (on average 79.65) internal successors, (1593), 20 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:45,408 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:45,408 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 279 [2021-03-24 20:11:45,408 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:46,369 INFO L129 PetriNetUnfolder]: 15/77 cut-off events. [2021-03-24 20:11:46,369 INFO L130 PetriNetUnfolder]: For 71/71 co-relation queries the response was YES. [2021-03-24 20:11:46,370 INFO L84 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 77 events. 15/77 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 139 event pairs, 3 based on Foata normal form. 1/78 useless extension candidates. Maximal degree in co-relation 245. Up to 25 conditions per place. [2021-03-24 20:11:46,370 INFO L132 encePairwiseOnDemand]: 265/279 looper letters, 0 selfloop transitions, 0 changer transitions 49/49 dead transitions. [2021-03-24 20:11:46,370 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 49 transitions, 307 flow [2021-03-24 20:11:46,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 20:11:46,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 20:11:46,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1209 transitions. [2021-03-24 20:11:46,371 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.28888888888888886 [2021-03-24 20:11:46,372 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1209 transitions. [2021-03-24 20:11:46,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1209 transitions. [2021-03-24 20:11:46,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:46,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1209 transitions. [2021-03-24 20:11:46,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 80.6) internal successors, (1209), 15 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:46,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 279.0) internal successors, (4464), 16 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:46,376 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 279.0) internal successors, (4464), 16 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:46,376 INFO L185 Difference]: Start difference. First operand has 96 places, 47 transitions, 216 flow. Second operand 15 states and 1209 transitions. [2021-03-24 20:11:46,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 49 transitions, 307 flow [2021-03-24 20:11:46,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 49 transitions, 258 flow, removed 3 selfloop flow, removed 15 redundant places. [2021-03-24 20:11:46,378 INFO L241 Difference]: Finished difference. Result has 77 places, 0 transitions, 0 flow [2021-03-24 20:11:46,378 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=0, PETRI_PLACES=77, PETRI_TRANSITIONS=0} [2021-03-24 20:11:46,378 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 13 predicate places. [2021-03-24 20:11:46,378 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 0 transitions, 0 flow [2021-03-24 20:11:46,378 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 79.65) internal successors, (1593), 20 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:46,378 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-24 20:11:46,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 08:11:46 BasicIcfg [2021-03-24 20:11:46,381 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 20:11:46,382 INFO L168 Benchmark]: Toolchain (without parser) took 93315.61 ms. Allocated memory was 255.9 MB in the beginning and 507.5 MB in the end (delta: 251.7 MB). Free memory was 230.2 MB in the beginning and 335.8 MB in the end (delta: -105.6 MB). Peak memory consumption was 144.6 MB. Max. memory is 16.0 GB. [2021-03-24 20:11:46,382 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 20:11:46,382 INFO L168 Benchmark]: CACSL2BoogieTranslator took 914.43 ms. Allocated memory was 255.9 MB in the beginning and 348.1 MB in the end (delta: 92.3 MB). Free memory was 230.2 MB in the beginning and 323.0 MB in the end (delta: -92.8 MB). Peak memory consumption was 63.0 MB. Max. memory is 16.0 GB. [2021-03-24 20:11:46,382 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.12 ms. Allocated memory is still 348.1 MB. Free memory was 323.0 MB in the beginning and 319.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-24 20:11:46,382 INFO L168 Benchmark]: Boogie Preprocessor took 61.45 ms. Allocated memory is still 348.1 MB. Free memory was 319.8 MB in the beginning and 316.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 20:11:46,382 INFO L168 Benchmark]: RCFGBuilder took 574.06 ms. Allocated memory is still 348.1 MB. Free memory was 316.7 MB in the beginning and 269.5 MB in the end (delta: 47.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. [2021-03-24 20:11:46,382 INFO L168 Benchmark]: TraceAbstraction took 91671.96 ms. Allocated memory was 348.1 MB in the beginning and 507.5 MB in the end (delta: 159.4 MB). Free memory was 269.5 MB in the beginning and 335.8 MB in the end (delta: -66.3 MB). Peak memory consumption was 92.1 MB. Max. memory is 16.0 GB. [2021-03-24 20:11:46,383 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 914.43 ms. Allocated memory was 255.9 MB in the beginning and 348.1 MB in the end (delta: 92.3 MB). Free memory was 230.2 MB in the beginning and 323.0 MB in the end (delta: -92.8 MB). Peak memory consumption was 63.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 87.12 ms. Allocated memory is still 348.1 MB. Free memory was 323.0 MB in the beginning and 319.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 61.45 ms. Allocated memory is still 348.1 MB. Free memory was 319.8 MB in the beginning and 316.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 574.06 ms. Allocated memory is still 348.1 MB. Free memory was 316.7 MB in the beginning and 269.5 MB in the end (delta: 47.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 91671.96 ms. Allocated memory was 348.1 MB in the beginning and 507.5 MB in the end (delta: 159.4 MB). Free memory was 269.5 MB in the beginning and 335.8 MB in the end (delta: -66.3 MB). Peak memory consumption was 92.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 51390.7ms, 150 PlacesBefore, 64 PlacesAfterwards, 152 TransitionsBefore, 65 TransitionsAfterwards, 2288 CoEnabledTransitionPairs, 5 FixpointIterations, 67 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 115 TotalNumberOfCompositions, 3162 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1541, positive: 1461, positive conditional: 0, positive unconditional: 1461, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1308, positive: 1273, positive conditional: 0, positive unconditional: 1273, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1308, positive: 1273, positive conditional: 0, positive unconditional: 1273, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1308, positive: 1270, positive conditional: 0, positive unconditional: 1270, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 16, unknown conditional: 0, unknown unconditional: 16] , SemanticIndependenceRelation.Query Time [ms]: [ total: 47734, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 449, negative conditional: 0, negative unconditional: 449, unknown: 47271, unknown conditional: 0, unknown unconditional: 47271] ], Cache Queries: [ total: 1541, positive: 188, positive conditional: 0, positive unconditional: 188, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 1308, unknown conditional: 0, unknown unconditional: 1308] , Statistics on independence cache: Total cache size (in pairs): 74, Positive cache size: 55, Positive conditional cache size: 0, Positive unconditional cache size: 55, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 140 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 91550.6ms, OverallIterations: 31, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 28030.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 51546.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 594 SDtfs, 2559 SDslu, 1994 SDs, 0 SdLazy, 11737 SolverSat, 1226 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7394.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 739 GetRequests, 64 SyntacticMatches, 51 SemanticMatches, 624 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1751 ImplicationChecksByTransitivity, 21347.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4366occurred in iteration=16, InterpolantAutomatonStates: 369, 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: 71.9ms SsaConstructionTime, 835.5ms SatisfiabilityAnalysisTime, 10586.8ms InterpolantComputationTime, 1022 NumberOfCodeBlocks, 1022 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 991 ConstructedInterpolants, 0 QuantifiedInterpolants, 17599 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 31 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...