/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-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 05:28:53,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 05:28:53,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 05:28:53,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 05:28:53,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 05:28:53,863 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 05:28:53,865 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 05:28:53,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 05:28:53,872 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 05:28:53,878 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 05:28:53,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 05:28:53,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 05:28:53,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 05:28:53,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 05:28:53,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 05:28:53,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 05:28:53,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 05:28:53,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 05:28:53,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 05:28:53,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 05:28:53,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 05:28:53,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 05:28:53,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 05:28:53,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 05:28:53,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 05:28:53,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 05:28:53,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 05:28:53,915 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 05:28:53,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 05:28:53,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 05:28:53,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 05:28:53,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 05:28:53,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 05:28:53,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 05:28:53,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 05:28:53,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 05:28:53,919 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-RepeatedVariableLbe.epf [2021-03-25 05:28:53,952 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 05:28:53,952 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 05:28:53,955 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 05:28:53,955 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 05:28:53,956 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 05:28:53,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 05:28:53,956 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 05:28:53,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 05:28:53,956 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 05:28:53,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 05:28:53,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 05:28:53,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 05:28:53,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 05:28:53,958 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 05:28:53,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 05:28:53,958 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 05:28:53,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 05:28:53,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 05:28:53,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 05:28:53,958 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 05:28:53,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 05:28:53,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 05:28:53,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 05:28:53,959 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 05:28:53,959 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 05:28:53,959 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 05:28:53,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 05:28:53,960 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 05:28:53,960 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 05:28:53,960 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 05:28:53,960 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 05:28:54,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 05:28:54,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 05:28:54,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 05:28:54,277 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 05:28:54,277 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 05:28:54,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2021-03-25 05:28:54,341 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/106889056/71dbae0465084cec8599d9b0e7eab62f/FLAGfa84e152a [2021-03-25 05:28:54,875 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 05:28:54,875 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2021-03-25 05:28:54,900 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/106889056/71dbae0465084cec8599d9b0e7eab62f/FLAGfa84e152a [2021-03-25 05:28:55,364 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/106889056/71dbae0465084cec8599d9b0e7eab62f [2021-03-25 05:28:55,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 05:28:55,368 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 05:28:55,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 05:28:55,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 05:28:55,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 05:28:55,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 05:28:55" (1/1) ... [2021-03-25 05:28:55,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23e99dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:28:55, skipping insertion in model container [2021-03-25 05:28:55,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 05:28:55" (1/1) ... [2021-03-25 05:28:55,404 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 05:28:55,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 05:28:55,591 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-25 05:28:56,149 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i[75009,75022] [2021-03-25 05:28:56,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 05:28:56,177 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 05:28:56,189 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-25 05:28:56,228 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i[75009,75022] [2021-03-25 05:28:56,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 05:28:56,546 INFO L208 MainTranslator]: Completed translation [2021-03-25 05:28:56,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:28:56 WrapperNode [2021-03-25 05:28:56,547 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 05:28:56,548 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 05:28:56,548 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 05:28:56,548 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 05:28:56,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:28:56" (1/1) ... [2021-03-25 05:28:56,598 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:28:56" (1/1) ... [2021-03-25 05:28:56,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 05:28:56,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 05:28:56,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 05:28:56,624 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 05:28:56,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:28:56" (1/1) ... [2021-03-25 05:28:56,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:28:56" (1/1) ... [2021-03-25 05:28:56,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:28:56" (1/1) ... [2021-03-25 05:28:56,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:28:56" (1/1) ... [2021-03-25 05:28:56,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:28:56" (1/1) ... [2021-03-25 05:28:56,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:28:56" (1/1) ... [2021-03-25 05:28:56,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:28:56" (1/1) ... [2021-03-25 05:28:56,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 05:28:56,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 05:28:56,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 05:28:56,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 05:28:56,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:28:56" (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 [2021-03-25 05:28:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 05:28:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 05:28:56,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 05:28:56,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-25 05:28:56,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-03-25 05:28:56,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 05:28:56,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 05:28:56,752 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-03-25 05:28:56,752 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-03-25 05:28:56,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 05:28:56,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 05:28:56,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 05:28:56,753 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 05:28:57,449 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 05:28:57,450 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-03-25 05:28:57,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 05:28:57 BoogieIcfgContainer [2021-03-25 05:28:57,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 05:28:57,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 05:28:57,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 05:28:57,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 05:28:57,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 05:28:55" (1/3) ... [2021-03-25 05:28:57,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4630f83f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 05:28:57, skipping insertion in model container [2021-03-25 05:28:57,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:28:56" (2/3) ... [2021-03-25 05:28:57,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4630f83f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 05:28:57, skipping insertion in model container [2021-03-25 05:28:57,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 05:28:57" (3/3) ... [2021-03-25 05:28:57,456 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2021-03-25 05:28:57,460 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 05:28:57,463 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-03-25 05:28:57,464 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 05:28:57,522 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,522 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,522 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,523 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,523 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,523 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,523 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,523 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,523 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,524 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,524 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,524 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,524 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,524 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,524 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,524 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,524 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,525 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,525 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,525 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,525 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,525 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,525 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,525 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,525 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,526 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,526 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,526 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,526 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,526 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,526 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,526 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,527 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,527 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,527 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,527 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,527 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,527 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,527 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,527 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,528 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,528 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,528 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,528 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,528 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,528 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,529 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,529 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,529 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,529 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,529 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,529 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,529 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,529 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,529 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,530 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,530 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,530 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,530 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,530 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,530 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,530 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,530 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,530 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,531 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,531 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,531 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,531 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,531 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,531 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,531 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,532 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,532 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,532 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,532 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,532 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,532 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,532 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,533 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,533 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,533 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,533 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,533 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,533 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,533 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,533 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,534 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,534 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,534 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,534 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,534 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,534 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,544 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,544 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,544 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,544 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,544 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,545 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,545 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,545 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,545 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,545 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,547 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,547 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,547 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,547 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,548 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,548 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,548 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,548 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,548 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,548 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:28:57,559 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-25 05:28:57,580 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-03-25 05:28:57,596 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 05:28:57,596 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 05:28:57,596 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 05:28:57,596 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 05:28:57,596 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 05:28:57,596 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 05:28:57,596 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 05:28:57,596 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 05:28:57,607 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 152 places, 156 transitions, 334 flow [2021-03-25 05:28:57,651 INFO L129 PetriNetUnfolder]: 11/196 cut-off events. [2021-03-25 05:28:57,651 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-25 05:28:57,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 196 events. 11/196 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 358 event pairs, 0 based on Foata normal form. 0/176 useless extension candidates. Maximal degree in co-relation 111. Up to 4 conditions per place. [2021-03-25 05:28:57,654 INFO L82 GeneralOperation]: Start removeDead. Operand has 152 places, 156 transitions, 334 flow [2021-03-25 05:28:57,659 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 144 transitions, 306 flow [2021-03-25 05:28:57,660 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:28:57,667 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 142 places, 144 transitions, 306 flow [2021-03-25 05:28:57,669 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 142 places, 144 transitions, 306 flow [2021-03-25 05:28:57,671 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 142 places, 144 transitions, 306 flow [2021-03-25 05:28:57,695 INFO L129 PetriNetUnfolder]: 8/177 cut-off events. [2021-03-25 05:28:57,695 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-25 05:28:57,696 INFO L84 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 177 events. 8/177 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 300 event pairs, 0 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 101. Up to 4 conditions per place. [2021-03-25 05:28:57,698 INFO L142 LiptonReduction]: Number of co-enabled transitions 1512 [2021-03-25 05:29:00,360 INFO L154 LiptonReduction]: Checked pairs total: 1692 [2021-03-25 05:29:00,360 INFO L156 LiptonReduction]: Total number of compositions: 113 [2021-03-25 05:29:00,362 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2703 [2021-03-25 05:29:00,367 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2021-03-25 05:29:00,368 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:29:00,368 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:29:00,368 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:29:00,369 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]=== [2021-03-25 05:29:00,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:29:00,373 INFO L82 PathProgramCache]: Analyzing trace with hash 2133033277, now seen corresponding path program 1 times [2021-03-25 05:29:00,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:29:00,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123047790] [2021-03-25 05:29:00,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:29:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:29:00,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:29:00,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:29:00,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:29:00,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:29:00,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:29:00,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:29:00,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:29:00,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123047790] [2021-03-25 05:29:00,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:29:00,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:29:00,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858380810] [2021-03-25 05:29:00,693 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:29:00,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:29:00,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:29:00,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:29:00,709 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 269 [2021-03-25 05:29:00,713 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 62 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 145.5) internal successors, (582), 4 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:00,713 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:29:00,713 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 269 [2021-03-25 05:29:00,714 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:29:00,859 INFO L129 PetriNetUnfolder]: 170/350 cut-off events. [2021-03-25 05:29:00,860 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-03-25 05:29:00,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 689 conditions, 350 events. 170/350 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1484 event pairs, 165 based on Foata normal form. 1/321 useless extension candidates. Maximal degree in co-relation 587. Up to 316 conditions per place. [2021-03-25 05:29:00,866 INFO L132 encePairwiseOnDemand]: 258/269 looper letters, 29 selfloop transitions, 6 changer transitions 2/58 dead transitions. [2021-03-25 05:29:00,866 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 58 transitions, 208 flow [2021-03-25 05:29:00,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:29:00,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:29:00,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 618 transitions. [2021-03-25 05:29:00,884 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5743494423791822 [2021-03-25 05:29:00,885 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 618 transitions. [2021-03-25 05:29:00,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 618 transitions. [2021-03-25 05:29:00,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:29:00,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 618 transitions. [2021-03-25 05:29:00,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 154.5) internal successors, (618), 4 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:00,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 269.0) internal successors, (1345), 5 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:00,899 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 269.0) internal successors, (1345), 5 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:00,900 INFO L185 Difference]: Start difference. First operand has 61 places, 62 transitions, 142 flow. Second operand 4 states and 618 transitions. [2021-03-25 05:29:00,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 58 transitions, 208 flow [2021-03-25 05:29:00,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 58 transitions, 196 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 05:29:00,905 INFO L241 Difference]: Finished difference. Result has 57 places, 56 transitions, 142 flow [2021-03-25 05:29:00,906 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=142, PETRI_PLACES=57, PETRI_TRANSITIONS=56} [2021-03-25 05:29:00,907 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2021-03-25 05:29:00,907 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:29:00,907 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 56 transitions, 142 flow [2021-03-25 05:29:00,907 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 56 transitions, 142 flow [2021-03-25 05:29:00,908 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 56 transitions, 142 flow [2021-03-25 05:29:00,914 INFO L129 PetriNetUnfolder]: 4/84 cut-off events. [2021-03-25 05:29:00,915 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 05:29:00,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 84 events. 4/84 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 217 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 38. Up to 10 conditions per place. [2021-03-25 05:29:00,915 INFO L142 LiptonReduction]: Number of co-enabled transitions 252 [2021-03-25 05:29:01,553 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2021-03-25 05:29:01,762 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2021-03-25 05:29:02,292 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-03-25 05:29:03,209 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2021-03-25 05:29:03,487 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2021-03-25 05:29:03,589 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-25 05:29:03,606 INFO L154 LiptonReduction]: Checked pairs total: 768 [2021-03-25 05:29:03,606 INFO L156 LiptonReduction]: Total number of compositions: 26 [2021-03-25 05:29:03,606 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2699 [2021-03-25 05:29:03,607 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 37 transitions, 104 flow [2021-03-25 05:29:03,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 145.5) internal successors, (582), 4 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:03,607 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:29:03,608 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:29:03,608 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 05:29:03,608 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]=== [2021-03-25 05:29:03,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:29:03,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1151715474, now seen corresponding path program 1 times [2021-03-25 05:29:03,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:29:03,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805790391] [2021-03-25 05:29:03,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:29:03,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:29:03,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:29:03,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:29:03,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:29:03,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:29:03,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:29:03,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:29:03,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:29:03,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805790391] [2021-03-25 05:29:03,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:29:03,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:29:03,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904949684] [2021-03-25 05:29:03,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:29:03,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:29:03,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:29:03,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:29:03,699 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 295 [2021-03-25 05:29:03,700 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 37 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:03,700 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:29:03,700 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 295 [2021-03-25 05:29:03,700 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:29:03,794 INFO L129 PetriNetUnfolder]: 171/331 cut-off events. [2021-03-25 05:29:03,794 INFO L130 PetriNetUnfolder]: For 50/54 co-relation queries the response was YES. [2021-03-25 05:29:03,795 INFO L84 FinitePrefix]: Finished finitePrefix Result has 711 conditions, 331 events. 171/331 cut-off events. For 50/54 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1429 event pairs, 93 based on Foata normal form. 0/302 useless extension candidates. Maximal degree in co-relation 658. Up to 182 conditions per place. [2021-03-25 05:29:03,796 INFO L132 encePairwiseOnDemand]: 284/295 looper letters, 26 selfloop transitions, 10 changer transitions 1/46 dead transitions. [2021-03-25 05:29:03,796 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 46 transitions, 195 flow [2021-03-25 05:29:03,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:29:03,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:29:03,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 630 transitions. [2021-03-25 05:29:03,799 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5338983050847458 [2021-03-25 05:29:03,799 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 630 transitions. [2021-03-25 05:29:03,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 630 transitions. [2021-03-25 05:29:03,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:29:03,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 630 transitions. [2021-03-25 05:29:03,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 157.5) internal successors, (630), 4 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:03,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 295.0) internal successors, (1475), 5 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:03,804 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 295.0) internal successors, (1475), 5 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:03,804 INFO L185 Difference]: Start difference. First operand has 36 places, 37 transitions, 104 flow. Second operand 4 states and 630 transitions. [2021-03-25 05:29:03,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 46 transitions, 195 flow [2021-03-25 05:29:03,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 46 transitions, 190 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 05:29:03,806 INFO L241 Difference]: Finished difference. Result has 38 places, 38 transitions, 130 flow [2021-03-25 05:29:03,806 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=130, PETRI_PLACES=38, PETRI_TRANSITIONS=38} [2021-03-25 05:29:03,807 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, -23 predicate places. [2021-03-25 05:29:03,807 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:29:03,807 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 38 transitions, 130 flow [2021-03-25 05:29:03,807 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 38 transitions, 130 flow [2021-03-25 05:29:03,808 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 38 transitions, 130 flow [2021-03-25 05:29:03,813 INFO L129 PetriNetUnfolder]: 5/63 cut-off events. [2021-03-25 05:29:03,813 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-03-25 05:29:03,813 INFO L84 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 63 events. 5/63 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 168 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 34. Up to 12 conditions per place. [2021-03-25 05:29:03,813 INFO L142 LiptonReduction]: Number of co-enabled transitions 158 [2021-03-25 05:29:04,017 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-03-25 05:29:04,229 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-03-25 05:29:04,359 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-03-25 05:29:04,475 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-03-25 05:29:04,597 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-03-25 05:29:04,744 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-03-25 05:29:05,366 WARN L205 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2021-03-25 05:29:05,525 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-03-25 05:29:06,074 WARN L205 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 127 [2021-03-25 05:29:06,277 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-03-25 05:29:07,136 WARN L205 SmtUtils]: Spent 732.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 167 [2021-03-25 05:29:07,470 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-03-25 05:29:08,266 WARN L205 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 169 [2021-03-25 05:29:08,648 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-03-25 05:29:08,654 INFO L154 LiptonReduction]: Checked pairs total: 516 [2021-03-25 05:29:08,654 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-25 05:29:08,654 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4847 [2021-03-25 05:29:08,655 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 34 transitions, 122 flow [2021-03-25 05:29:08,655 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:08,656 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:29:08,656 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-03-25 05:29:08,656 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 05:29:08,656 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]=== [2021-03-25 05:29:08,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:29:08,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1328672246, now seen corresponding path program 1 times [2021-03-25 05:29:08,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:29:08,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31779952] [2021-03-25 05:29:08,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:29:08,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:29:08,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:29:08,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:29:08,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:29:08,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:29:08,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:29:08,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:29:08,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:29:08,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31779952] [2021-03-25 05:29:08,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:29:08,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:29:08,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951722285] [2021-03-25 05:29:08,711 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 05:29:08,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:29:08,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 05:29:08,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 05:29:08,713 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 302 [2021-03-25 05:29:08,714 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 34 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:08,714 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:29:08,714 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 302 [2021-03-25 05:29:08,714 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:29:08,827 INFO L129 PetriNetUnfolder]: 241/455 cut-off events. [2021-03-25 05:29:08,828 INFO L130 PetriNetUnfolder]: For 82/86 co-relation queries the response was YES. [2021-03-25 05:29:08,829 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1075 conditions, 455 events. 241/455 cut-off events. For 82/86 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2031 event pairs, 94 based on Foata normal form. 0/430 useless extension candidates. Maximal degree in co-relation 514. Up to 340 conditions per place. [2021-03-25 05:29:08,831 INFO L132 encePairwiseOnDemand]: 294/302 looper letters, 27 selfloop transitions, 7 changer transitions 0/42 dead transitions. [2021-03-25 05:29:08,831 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 42 transitions, 209 flow [2021-03-25 05:29:08,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 05:29:08,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 05:29:08,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 540 transitions. [2021-03-25 05:29:08,833 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5960264900662252 [2021-03-25 05:29:08,833 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 540 transitions. [2021-03-25 05:29:08,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 540 transitions. [2021-03-25 05:29:08,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:29:08,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 540 transitions. [2021-03-25 05:29:08,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:08,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 302.0) internal successors, (1208), 4 states have internal predecessors, (1208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:08,838 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 302.0) internal successors, (1208), 4 states have internal predecessors, (1208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:08,838 INFO L185 Difference]: Start difference. First operand has 34 places, 34 transitions, 122 flow. Second operand 3 states and 540 transitions. [2021-03-25 05:29:08,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 42 transitions, 209 flow [2021-03-25 05:29:08,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 42 transitions, 196 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 05:29:08,840 INFO L241 Difference]: Finished difference. Result has 35 places, 37 transitions, 147 flow [2021-03-25 05:29:08,840 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=35, PETRI_TRANSITIONS=37} [2021-03-25 05:29:08,840 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, -26 predicate places. [2021-03-25 05:29:08,840 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:29:08,840 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 37 transitions, 147 flow [2021-03-25 05:29:08,841 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 37 transitions, 147 flow [2021-03-25 05:29:08,841 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 37 transitions, 147 flow [2021-03-25 05:29:08,853 INFO L129 PetriNetUnfolder]: 31/134 cut-off events. [2021-03-25 05:29:08,853 INFO L130 PetriNetUnfolder]: For 55/63 co-relation queries the response was YES. [2021-03-25 05:29:08,854 INFO L84 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 134 events. 31/134 cut-off events. For 55/63 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 641 event pairs, 15 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 151. Up to 54 conditions per place. [2021-03-25 05:29:08,855 INFO L142 LiptonReduction]: Number of co-enabled transitions 168 [2021-03-25 05:29:10,615 WARN L205 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 172 DAG size of output: 170 [2021-03-25 05:29:11,518 WARN L205 SmtUtils]: Spent 901.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-03-25 05:29:13,335 WARN L205 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 175 DAG size of output: 173 [2021-03-25 05:29:14,217 WARN L205 SmtUtils]: Spent 879.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-03-25 05:29:14,223 INFO L154 LiptonReduction]: Checked pairs total: 271 [2021-03-25 05:29:14,223 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 05:29:14,223 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5383 [2021-03-25 05:29:14,224 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 35 transitions, 143 flow [2021-03-25 05:29:14,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:14,224 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:29:14,224 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-25 05:29:14,225 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 05:29:14,225 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]=== [2021-03-25 05:29:14,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:29:14,225 INFO L82 PathProgramCache]: Analyzing trace with hash 519069801, now seen corresponding path program 1 times [2021-03-25 05:29:14,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:29:14,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290825130] [2021-03-25 05:29:14,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:29:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:29:14,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:29:14,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:29:14,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:29:14,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:29:14,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:29:14,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290825130] [2021-03-25 05:29:14,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:29:14,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:29:14,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886423269] [2021-03-25 05:29:14,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 05:29:14,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:29:14,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 05:29:14,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 05:29:14,271 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 304 [2021-03-25 05:29:14,272 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 35 transitions, 143 flow. Second operand has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:14,272 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:29:14,272 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 304 [2021-03-25 05:29:14,272 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:29:14,376 INFO L129 PetriNetUnfolder]: 268/508 cut-off events. [2021-03-25 05:29:14,376 INFO L130 PetriNetUnfolder]: For 325/335 co-relation queries the response was YES. [2021-03-25 05:29:14,377 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1464 conditions, 508 events. 268/508 cut-off events. For 325/335 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2411 event pairs, 86 based on Foata normal form. 32/528 useless extension candidates. Maximal degree in co-relation 488. Up to 376 conditions per place. [2021-03-25 05:29:14,380 INFO L132 encePairwiseOnDemand]: 298/304 looper letters, 27 selfloop transitions, 9 changer transitions 4/47 dead transitions. [2021-03-25 05:29:14,380 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 47 transitions, 277 flow [2021-03-25 05:29:14,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 05:29:14,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 05:29:14,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 538 transitions. [2021-03-25 05:29:14,382 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5899122807017544 [2021-03-25 05:29:14,382 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 538 transitions. [2021-03-25 05:29:14,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 538 transitions. [2021-03-25 05:29:14,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:29:14,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 538 transitions. [2021-03-25 05:29:14,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:14,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:14,386 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:14,386 INFO L185 Difference]: Start difference. First operand has 33 places, 35 transitions, 143 flow. Second operand 3 states and 538 transitions. [2021-03-25 05:29:14,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 47 transitions, 277 flow [2021-03-25 05:29:14,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 47 transitions, 262 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-25 05:29:14,389 INFO L241 Difference]: Finished difference. Result has 35 places, 39 transitions, 191 flow [2021-03-25 05:29:14,389 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=191, PETRI_PLACES=35, PETRI_TRANSITIONS=39} [2021-03-25 05:29:14,390 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, -26 predicate places. [2021-03-25 05:29:14,390 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:29:14,390 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 39 transitions, 191 flow [2021-03-25 05:29:14,390 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 39 transitions, 191 flow [2021-03-25 05:29:14,391 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 39 transitions, 191 flow [2021-03-25 05:29:14,418 INFO L129 PetriNetUnfolder]: 74/201 cut-off events. [2021-03-25 05:29:14,418 INFO L130 PetriNetUnfolder]: For 145/147 co-relation queries the response was YES. [2021-03-25 05:29:14,419 INFO L84 FinitePrefix]: Finished finitePrefix Result has 550 conditions, 201 events. 74/201 cut-off events. For 145/147 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1023 event pairs, 23 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 320. Up to 114 conditions per place. [2021-03-25 05:29:14,420 INFO L142 LiptonReduction]: Number of co-enabled transitions 148 [2021-03-25 05:29:14,572 INFO L154 LiptonReduction]: Checked pairs total: 327 [2021-03-25 05:29:14,572 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 05:29:14,572 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 182 [2021-03-25 05:29:14,573 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 38 transitions, 189 flow [2021-03-25 05:29:14,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:14,573 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:29:14,573 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:29:14,573 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 05:29:14,574 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]=== [2021-03-25 05:29:14,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:29:14,574 INFO L82 PathProgramCache]: Analyzing trace with hash 199267917, now seen corresponding path program 1 times [2021-03-25 05:29:14,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:29:14,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410925628] [2021-03-25 05:29:14,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:29:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:29:14,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:29:14,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:29:14,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:29:14,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:29:14,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:29:14,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:29:14,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:29:14,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410925628] [2021-03-25 05:29:14,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:29:14,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:29:14,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890835575] [2021-03-25 05:29:14,616 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 05:29:14,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:29:14,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 05:29:14,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 05:29:14,617 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 306 [2021-03-25 05:29:14,618 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 38 transitions, 189 flow. Second operand has 3 states, 3 states have (on average 246.0) internal successors, (738), 3 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:14,618 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:29:14,618 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 306 [2021-03-25 05:29:14,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:29:14,633 INFO L129 PetriNetUnfolder]: 6/43 cut-off events. [2021-03-25 05:29:14,633 INFO L130 PetriNetUnfolder]: For 40/47 co-relation queries the response was YES. [2021-03-25 05:29:14,633 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 43 events. 6/43 cut-off events. For 40/47 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 102 event pairs, 2 based on Foata normal form. 15/57 useless extension candidates. Maximal degree in co-relation 84. Up to 13 conditions per place. [2021-03-25 05:29:14,633 INFO L132 encePairwiseOnDemand]: 304/306 looper letters, 1 selfloop transitions, 1 changer transitions 0/21 dead transitions. [2021-03-25 05:29:14,634 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 21 transitions, 86 flow [2021-03-25 05:29:14,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 05:29:14,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 05:29:14,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 738 transitions. [2021-03-25 05:29:14,636 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.803921568627451 [2021-03-25 05:29:14,636 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 738 transitions. [2021-03-25 05:29:14,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 738 transitions. [2021-03-25 05:29:14,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:29:14,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 738 transitions. [2021-03-25 05:29:14,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 246.0) internal successors, (738), 3 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:14,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:14,640 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:14,640 INFO L185 Difference]: Start difference. First operand has 34 places, 38 transitions, 189 flow. Second operand 3 states and 738 transitions. [2021-03-25 05:29:14,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 21 transitions, 86 flow [2021-03-25 05:29:14,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 21 transitions, 70 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-03-25 05:29:14,641 INFO L241 Difference]: Finished difference. Result has 26 places, 21 transitions, 68 flow [2021-03-25 05:29:14,642 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=26, PETRI_TRANSITIONS=21} [2021-03-25 05:29:14,642 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, -35 predicate places. [2021-03-25 05:29:14,642 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:29:14,642 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 21 transitions, 68 flow [2021-03-25 05:29:14,642 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 21 transitions, 68 flow [2021-03-25 05:29:14,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 25 places, 21 transitions, 68 flow [2021-03-25 05:29:14,646 INFO L129 PetriNetUnfolder]: 6/43 cut-off events. [2021-03-25 05:29:14,646 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 05:29:14,646 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 43 events. 6/43 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 103 event pairs, 2 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 44. Up to 13 conditions per place. [2021-03-25 05:29:14,647 INFO L142 LiptonReduction]: Number of co-enabled transitions 68 [2021-03-25 05:29:14,648 INFO L154 LiptonReduction]: Checked pairs total: 30 [2021-03-25 05:29:14,648 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:29:14,648 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-03-25 05:29:14,649 INFO L480 AbstractCegarLoop]: Abstraction has has 25 places, 21 transitions, 68 flow [2021-03-25 05:29:14,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 246.0) internal successors, (738), 3 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:14,649 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:29:14,649 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:29:14,649 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 05:29:14,650 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]=== [2021-03-25 05:29:14,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:29:14,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1653964608, now seen corresponding path program 1 times [2021-03-25 05:29:14,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:29:14,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765171356] [2021-03-25 05:29:14,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:29:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:29:14,780 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-25 05:29:14,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 05:29:14,791 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-25 05:29:14,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 05:29:14,809 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-25 05:29:14,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 05:29:14,825 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-25 05:29:14,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 05:29:14,843 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-25 05:29:14,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 05:29:14,853 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.0 percent of original size [2021-03-25 05:29:14,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 05:29:14,870 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-25 05:29:14,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 05:29:14,887 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-25 05:29:14,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 05:29:14,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:29:14,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765171356] [2021-03-25 05:29:14,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:29:14,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 05:29:14,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299341344] [2021-03-25 05:29:14,890 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 05:29:14,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:29:14,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 05:29:14,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-25 05:29:14,892 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 306 [2021-03-25 05:29:14,893 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 21 transitions, 68 flow. Second operand has 8 states, 8 states have (on average 142.75) internal successors, (1142), 8 states have internal predecessors, (1142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:14,893 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:29:14,893 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 306 [2021-03-25 05:29:14,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:29:15,113 INFO L129 PetriNetUnfolder]: 81/207 cut-off events. [2021-03-25 05:29:15,113 INFO L130 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2021-03-25 05:29:15,113 INFO L84 FinitePrefix]: Finished finitePrefix Result has 505 conditions, 207 events. 81/207 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 896 event pairs, 7 based on Foata normal form. 0/205 useless extension candidates. Maximal degree in co-relation 129. Up to 83 conditions per place. [2021-03-25 05:29:15,114 INFO L132 encePairwiseOnDemand]: 299/306 looper letters, 30 selfloop transitions, 10 changer transitions 0/44 dead transitions. [2021-03-25 05:29:15,115 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 44 transitions, 211 flow [2021-03-25 05:29:15,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 05:29:15,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 05:29:15,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 887 transitions. [2021-03-25 05:29:15,118 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4831154684095861 [2021-03-25 05:29:15,118 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 887 transitions. [2021-03-25 05:29:15,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 887 transitions. [2021-03-25 05:29:15,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:29:15,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 887 transitions. [2021-03-25 05:29:15,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 147.83333333333334) internal successors, (887), 6 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:15,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 306.0) internal successors, (2142), 7 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:15,123 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 306.0) internal successors, (2142), 7 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:15,123 INFO L185 Difference]: Start difference. First operand has 25 places, 21 transitions, 68 flow. Second operand 6 states and 887 transitions. [2021-03-25 05:29:15,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 44 transitions, 211 flow [2021-03-25 05:29:15,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 44 transitions, 209 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 05:29:15,125 INFO L241 Difference]: Finished difference. Result has 31 places, 26 transitions, 116 flow [2021-03-25 05:29:15,125 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=116, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2021-03-25 05:29:15,125 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, -30 predicate places. [2021-03-25 05:29:15,125 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:29:15,125 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 26 transitions, 116 flow [2021-03-25 05:29:15,126 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 26 transitions, 116 flow [2021-03-25 05:29:15,126 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 26 transitions, 116 flow [2021-03-25 05:29:15,133 INFO L129 PetriNetUnfolder]: 15/92 cut-off events. [2021-03-25 05:29:15,133 INFO L130 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2021-03-25 05:29:15,133 INFO L84 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 92 events. 15/92 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 408 event pairs, 10 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 57. Up to 30 conditions per place. [2021-03-25 05:29:15,134 INFO L142 LiptonReduction]: Number of co-enabled transitions 78 [2021-03-25 05:29:15,135 INFO L154 LiptonReduction]: Checked pairs total: 22 [2021-03-25 05:29:15,135 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:29:15,135 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-25 05:29:15,136 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 116 flow [2021-03-25 05:29:15,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 142.75) internal successors, (1142), 8 states have internal predecessors, (1142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:15,136 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:29:15,136 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:29:15,137 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 05:29:15,137 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]=== [2021-03-25 05:29:15,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:29:15,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1685043113, now seen corresponding path program 1 times [2021-03-25 05:29:15,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:29:15,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938111346] [2021-03-25 05:29:15,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:29:15,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:29:15,347 INFO L142 QuantifierPusher]: treesize reduction 11, result has 75.6 percent of original size [2021-03-25 05:29:15,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 05:29:15,364 INFO L142 QuantifierPusher]: treesize reduction 11, result has 70.3 percent of original size [2021-03-25 05:29:15,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 05:29:15,379 INFO L142 QuantifierPusher]: treesize reduction 20, result has 63.0 percent of original size [2021-03-25 05:29:15,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 05:29:15,400 INFO L142 QuantifierPusher]: treesize reduction 20, result has 58.3 percent of original size [2021-03-25 05:29:15,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 05:29:15,419 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-25 05:29:15,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 05:29:15,443 INFO L142 QuantifierPusher]: treesize reduction 25, result has 60.9 percent of original size [2021-03-25 05:29:15,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 05:29:15,476 INFO L142 QuantifierPusher]: treesize reduction 21, result has 65.0 percent of original size [2021-03-25 05:29:15,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 05:29:15,480 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-25 05:29:15,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 05:29:15,505 INFO L142 QuantifierPusher]: treesize reduction 44, result has 36.2 percent of original size [2021-03-25 05:29:15,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 05:29:15,539 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-25 05:29:15,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 05:29:15,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:29:15,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938111346] [2021-03-25 05:29:15,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:29:15,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 05:29:15,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350797215] [2021-03-25 05:29:15,559 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 05:29:15,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:29:15,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 05:29:15,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 05:29:15,561 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 306 [2021-03-25 05:29:15,562 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 116 flow. Second operand has 11 states, 11 states have (on average 142.27272727272728) internal successors, (1565), 11 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:15,562 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:29:15,562 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 306 [2021-03-25 05:29:15,562 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:29:16,291 INFO L129 PetriNetUnfolder]: 108/320 cut-off events. [2021-03-25 05:29:16,291 INFO L130 PetriNetUnfolder]: For 221/221 co-relation queries the response was YES. [2021-03-25 05:29:16,292 INFO L84 FinitePrefix]: Finished finitePrefix Result has 831 conditions, 320 events. 108/320 cut-off events. For 221/221 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1813 event pairs, 14 based on Foata normal form. 1/311 useless extension candidates. Maximal degree in co-relation 243. Up to 89 conditions per place. [2021-03-25 05:29:16,293 INFO L132 encePairwiseOnDemand]: 294/306 looper letters, 46 selfloop transitions, 25 changer transitions 9/84 dead transitions. [2021-03-25 05:29:16,293 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 84 transitions, 523 flow [2021-03-25 05:29:16,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 05:29:16,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 05:29:16,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1618 transitions. [2021-03-25 05:29:16,298 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.48068924539512775 [2021-03-25 05:29:16,298 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1618 transitions. [2021-03-25 05:29:16,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1618 transitions. [2021-03-25 05:29:16,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:29:16,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1618 transitions. [2021-03-25 05:29:16,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 147.0909090909091) internal successors, (1618), 11 states have internal predecessors, (1618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:16,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 306.0) internal successors, (3672), 12 states have internal predecessors, (3672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:16,307 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 306.0) internal successors, (3672), 12 states have internal predecessors, (3672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:16,307 INFO L185 Difference]: Start difference. First operand has 31 places, 26 transitions, 116 flow. Second operand 11 states and 1618 transitions. [2021-03-25 05:29:16,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 84 transitions, 523 flow [2021-03-25 05:29:16,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 84 transitions, 512 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 05:29:16,309 INFO L241 Difference]: Finished difference. Result has 44 places, 49 transitions, 319 flow [2021-03-25 05:29:16,310 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=319, PETRI_PLACES=44, PETRI_TRANSITIONS=49} [2021-03-25 05:29:16,310 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, -17 predicate places. [2021-03-25 05:29:16,310 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:29:16,310 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 49 transitions, 319 flow [2021-03-25 05:29:16,310 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 49 transitions, 319 flow [2021-03-25 05:29:16,311 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 49 transitions, 319 flow [2021-03-25 05:29:16,323 INFO L129 PetriNetUnfolder]: 37/180 cut-off events. [2021-03-25 05:29:16,323 INFO L130 PetriNetUnfolder]: For 160/162 co-relation queries the response was YES. [2021-03-25 05:29:16,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 453 conditions, 180 events. 37/180 cut-off events. For 160/162 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1064 event pairs, 5 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 295. Up to 47 conditions per place. [2021-03-25 05:29:16,325 INFO L142 LiptonReduction]: Number of co-enabled transitions 92 [2021-03-25 05:29:16,329 INFO L154 LiptonReduction]: Checked pairs total: 49 [2021-03-25 05:29:16,329 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:29:16,329 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-03-25 05:29:16,330 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 49 transitions, 319 flow [2021-03-25 05:29:16,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 142.27272727272728) internal successors, (1565), 11 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:16,331 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:29:16,331 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:29:16,331 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 05:29:16,331 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]=== [2021-03-25 05:29:16,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:29:16,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1572884455, now seen corresponding path program 1 times [2021-03-25 05:29:16,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:29:16,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542159088] [2021-03-25 05:29:16,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:29:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:29:16,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:29:16,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 05:29:16,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:29:16,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 05:29:16,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:29:16,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 05:29:16,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:29:16,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 05:29:16,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:29:16,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:29:16,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:29:16,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:29:16,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:29:16,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542159088] [2021-03-25 05:29:16,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:29:16,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 05:29:16,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234739790] [2021-03-25 05:29:16,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 05:29:16,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:29:16,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 05:29:16,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 05:29:16,469 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 306 [2021-03-25 05:29:16,470 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 49 transitions, 319 flow. Second operand has 6 states, 6 states have (on average 154.33333333333334) internal successors, (926), 6 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:16,470 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:29:16,470 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 306 [2021-03-25 05:29:16,470 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:29:16,692 INFO L129 PetriNetUnfolder]: 82/243 cut-off events. [2021-03-25 05:29:16,692 INFO L130 PetriNetUnfolder]: For 395/395 co-relation queries the response was YES. [2021-03-25 05:29:16,693 INFO L84 FinitePrefix]: Finished finitePrefix Result has 909 conditions, 243 events. 82/243 cut-off events. For 395/395 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1148 event pairs, 7 based on Foata normal form. 19/257 useless extension candidates. Maximal degree in co-relation 618. Up to 118 conditions per place. [2021-03-25 05:29:16,694 INFO L132 encePairwiseOnDemand]: 299/306 looper letters, 57 selfloop transitions, 20 changer transitions 0/79 dead transitions. [2021-03-25 05:29:16,694 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 79 transitions, 668 flow [2021-03-25 05:29:16,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 05:29:16,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 05:29:16,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1263 transitions. [2021-03-25 05:29:16,697 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5159313725490197 [2021-03-25 05:29:16,697 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1263 transitions. [2021-03-25 05:29:16,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1263 transitions. [2021-03-25 05:29:16,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:29:16,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1263 transitions. [2021-03-25 05:29:16,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 157.875) internal successors, (1263), 8 states have internal predecessors, (1263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:16,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 306.0) internal successors, (2754), 9 states have internal predecessors, (2754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:16,704 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 306.0) internal successors, (2754), 9 states have internal predecessors, (2754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:16,704 INFO L185 Difference]: Start difference. First operand has 41 places, 49 transitions, 319 flow. Second operand 8 states and 1263 transitions. [2021-03-25 05:29:16,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 79 transitions, 668 flow [2021-03-25 05:29:16,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 79 transitions, 658 flow, removed 5 selfloop flow, removed 1 redundant places. [2021-03-25 05:29:16,709 INFO L241 Difference]: Finished difference. Result has 52 places, 58 transitions, 449 flow [2021-03-25 05:29:16,709 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=449, PETRI_PLACES=52, PETRI_TRANSITIONS=58} [2021-03-25 05:29:16,709 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, -9 predicate places. [2021-03-25 05:29:16,710 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:29:16,710 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 58 transitions, 449 flow [2021-03-25 05:29:16,710 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 58 transitions, 449 flow [2021-03-25 05:29:16,710 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 58 transitions, 449 flow [2021-03-25 05:29:16,724 INFO L129 PetriNetUnfolder]: 28/151 cut-off events. [2021-03-25 05:29:16,724 INFO L130 PetriNetUnfolder]: For 292/297 co-relation queries the response was YES. [2021-03-25 05:29:16,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 509 conditions, 151 events. 28/151 cut-off events. For 292/297 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 796 event pairs, 2 based on Foata normal form. 3/149 useless extension candidates. Maximal degree in co-relation 400. Up to 47 conditions per place. [2021-03-25 05:29:16,725 INFO L142 LiptonReduction]: Number of co-enabled transitions 70 [2021-03-25 05:29:16,731 INFO L154 LiptonReduction]: Checked pairs total: 124 [2021-03-25 05:29:16,731 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:29:16,731 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-03-25 05:29:16,731 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 58 transitions, 449 flow [2021-03-25 05:29:16,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 154.33333333333334) internal successors, (926), 6 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:29:16,732 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:29:16,733 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:29:16,733 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 05:29:16,733 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]=== [2021-03-25 05:29:16,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:29:16,733 INFO L82 PathProgramCache]: Analyzing trace with hash -877902984, now seen corresponding path program 1 times [2021-03-25 05:29:16,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:29:16,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940892423] [2021-03-25 05:29:16,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:29:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 05:29:16,774 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 05:29:16,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 05:29:16,808 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 05:29:16,844 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 05:29:16,844 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 05:29:16,844 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 05:29:16,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 05:29:16 BasicIcfg [2021-03-25 05:29:16,904 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 05:29:16,905 INFO L168 Benchmark]: Toolchain (without parser) took 21536.73 ms. Allocated memory was 255.9 MB in the beginning and 553.6 MB in the end (delta: 297.8 MB). Free memory was 233.3 MB in the beginning and 343.0 MB in the end (delta: -109.8 MB). Peak memory consumption was 186.6 MB. Max. memory is 16.0 GB. [2021-03-25 05:29:16,905 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.6 MB in the end (delta: 178.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 05:29:16,905 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1178.57 ms. Allocated memory was 255.9 MB in the beginning and 383.8 MB in the end (delta: 127.9 MB). Free memory was 232.6 MB in the beginning and 330.9 MB in the end (delta: -98.3 MB). Peak memory consumption was 56.1 MB. Max. memory is 16.0 GB. [2021-03-25 05:29:16,905 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.73 ms. Allocated memory is still 383.8 MB. Free memory was 330.9 MB in the beginning and 327.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-25 05:29:16,905 INFO L168 Benchmark]: Boogie Preprocessor took 46.75 ms. Allocated memory is still 383.8 MB. Free memory was 327.7 MB in the beginning and 324.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 05:29:16,906 INFO L168 Benchmark]: RCFGBuilder took 781.06 ms. Allocated memory is still 383.8 MB. Free memory was 324.6 MB in the beginning and 339.8 MB in the end (delta: -15.2 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-03-25 05:29:16,906 INFO L168 Benchmark]: TraceAbstraction took 19451.01 ms. Allocated memory was 383.8 MB in the beginning and 553.6 MB in the end (delta: 169.9 MB). Free memory was 339.8 MB in the beginning and 343.0 MB in the end (delta: -3.2 MB). Peak memory consumption was 166.7 MB. Max. memory is 16.0 GB. [2021-03-25 05:29:16,907 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.6 MB in the end (delta: 178.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 1178.57 ms. Allocated memory was 255.9 MB in the beginning and 383.8 MB in the end (delta: 127.9 MB). Free memory was 232.6 MB in the beginning and 330.9 MB in the end (delta: -98.3 MB). Peak memory consumption was 56.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 71.73 ms. Allocated memory is still 383.8 MB. Free memory was 330.9 MB in the beginning and 327.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 46.75 ms. Allocated memory is still 383.8 MB. Free memory was 327.7 MB in the beginning and 324.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 781.06 ms. Allocated memory is still 383.8 MB. Free memory was 324.6 MB in the beginning and 339.8 MB in the end (delta: -15.2 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 19451.01 ms. Allocated memory was 383.8 MB in the beginning and 553.6 MB in the end (delta: 169.9 MB). Free memory was 339.8 MB in the beginning and 343.0 MB in the end (delta: -3.2 MB). Peak memory consumption was 166.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2691.7ms, 142 PlacesBefore, 61 PlacesAfterwards, 144 TransitionsBefore, 62 TransitionsAfterwards, 1512 CoEnabledTransitionPairs, 4 FixpointIterations, 63 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 10 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 113 TotalNumberOfCompositions, 1692 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 951, positive: 902, positive conditional: 0, positive unconditional: 902, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 722, positive: 701, positive conditional: 0, positive unconditional: 701, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 722, positive: 701, positive conditional: 0, positive unconditional: 701, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 951, positive: 201, positive conditional: 0, positive unconditional: 201, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 722, unknown conditional: 0, unknown unconditional: 722] , Statistics on independence cache: Total cache size (in pairs): 24, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2698.5ms, 57 PlacesBefore, 36 PlacesAfterwards, 56 TransitionsBefore, 37 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 4 FixpointIterations, 20 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 26 TotalNumberOfCompositions, 768 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 187, positive: 124, positive conditional: 0, positive unconditional: 124, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 64, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 64, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 187, positive: 77, positive conditional: 0, positive unconditional: 77, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 64, unknown conditional: 0, unknown unconditional: 64] , Statistics on independence cache: Total cache size (in pairs): 26, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4846.8ms, 38 PlacesBefore, 34 PlacesAfterwards, 38 TransitionsBefore, 34 TransitionsAfterwards, 158 CoEnabledTransitionPairs, 3 FixpointIterations, 7 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 516 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 75, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 75, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 32, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5382.3ms, 35 PlacesBefore, 33 PlacesAfterwards, 37 TransitionsBefore, 35 TransitionsAfterwards, 168 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 271 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 35, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 35, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 27, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 181.8ms, 35 PlacesBefore, 34 PlacesAfterwards, 39 TransitionsBefore, 38 TransitionsAfterwards, 148 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 327 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 38, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 11, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 38, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 11, unknown conditional: 0, unknown unconditional: 11] , Statistics on independence cache: Total cache size (in pairs): 31, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.7ms, 26 PlacesBefore, 25 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 68 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 30 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 31, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.6ms, 31 PlacesBefore, 31 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 78 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 22 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 32, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.0ms, 44 PlacesBefore, 41 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 92 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 49 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 33, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.7ms, 52 PlacesBefore, 52 PlacesAfterwards, 58 TransitionsBefore, 58 TransitionsAfterwards, 70 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 124 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 24, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 33, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - CounterExampleResult [Line: 1675]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1676] 0 pthread_t t1,t2; [L1688] 0 struct device *my_dev; [L1727] 0 return 0; [L1733] 0 int ret = my_drv_init(); [L1734] COND TRUE 0 ret==0 [L1735] 0 int probe_ret; [L1736] 0 struct my_data data; [L1705] 0 data->shared.a = 0 [L1706] 0 data->shared.b = 0 [L1707] 0 data->shared.a [L1675] COND FALSE 0 !(!expression) [L1708] 0 data->shared.b [L1675] COND FALSE 0 !(!expression) [L1709] 0 int res = __VERIFIER_nondet_int(); [L1710] COND FALSE 0 !(\read(res)) [L1712] 0 my_dev = &data->dev [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, ((void *)0)) VAL [arg={0:0}, my_dev={9:24}, t1={7:0}, t2={5:0}] [L1690] 1 struct my_data *data; [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1693] 1 data->shared.a = 1 VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, my_dev={9:24}, t1={7:0}, t2={5:0}] [L1696] EXPR 1 data->shared.b [L1696] 1 int lb = data->shared.b; [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, ((void *)0)) VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={5:0}] [L1715] 0 return 0; [L1737] 0 probe_ret = my_drv_probe(&data) [L1738] COND TRUE 0 probe_ret==0 [L1721] 0 void *status; [L1722] 0 \read(t1) VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={5:0}] [L1690] 2 struct my_data *data; [L1691] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); [L1691] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1693] 2 data->shared.a = 1 VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={5:0}] [L1696] EXPR 2 data->shared.b [L1696] 2 int lb = data->shared.b; [L1699] 1 data->shared.b = lb + 1 [L1701] 1 return 0; [L1722] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={5:0}] [L1723] 0 \read(t2) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={5:0}] [L1699] 2 data->shared.b = lb + 1 [L1701] 2 return 0; [L1723] FCALL, JOIN 2 pthread_join(t2, &status) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={5:0}] [L1740] 0 data.shared.a [L1675] COND FALSE 0 !(!expression) [L1741] 0 data.shared.b [L1675] COND TRUE 0 !expression [L1675] 0 reach_error() VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 136 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 19252.4ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1815.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2769.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 119 SDtfs, 99 SDslu, 79 SDs, 0 SdLazy, 700 SolverSat, 77 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 758.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 9 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 707.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=449occurred in iteration=8, InterpolantAutomatonStates: 42, 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: 21.2ms SsaConstructionTime, 241.1ms SatisfiabilityAnalysisTime, 901.3ms InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 1046 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...