/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/sync01.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 15:10:44,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 15:10:44,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 15:10:44,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 15:10:44,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 15:10:44,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 15:10:44,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 15:10:44,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 15:10:44,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 15:10:44,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 15:10:44,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 15:10:44,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 15:10:44,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 15:10:44,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 15:10:44,947 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 15:10:44,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 15:10:44,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 15:10:44,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 15:10:44,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 15:10:44,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 15:10:44,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 15:10:44,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 15:10:44,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 15:10:44,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 15:10:44,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-04-28 15:10:44,971 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-04-28 15:10:44,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-04-28 15:10:44,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-04-28 15:10:44,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-04-28 15:10:44,974 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-04-28 15:10:44,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 15:10:44,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 15:10:44,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 15:10:44,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 15:10:44,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 15:10:44,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 15:10:44,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 15:10:44,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 15:10:44,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 15:10:44,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 15:10:44,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 15:10:44,985 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 15:10:45,012 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 15:10:45,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 15:10:45,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 15:10:45,015 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 15:10:45,015 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 15:10:45,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 15:10:45,016 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 15:10:45,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 15:10:45,017 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 15:10:45,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 15:10:45,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 15:10:45,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 15:10:45,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 15:10:45,018 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 15:10:45,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 15:10:45,019 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 15:10:45,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 15:10:45,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 15:10:45,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 15:10:45,021 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 15:10:45,021 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 15:10:45,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 15:10:45,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 15:10:45,022 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 15:10:45,022 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 15:10:45,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 15:10:45,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 15:10:45,024 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 15:10:45,024 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 15:10:45,024 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 15:10:45,025 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 15:10:45,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 15:10:45,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 15:10:45,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 15:10:45,433 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 15:10:45,433 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 15:10:45,434 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2021-04-28 15:10:45,514 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6d73c96b/43b0aa1533674b7fb3e6a5cd1fca4954/FLAG45ad43305 [2021-04-28 15:10:46,239 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 15:10:46,240 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2021-04-28 15:10:46,258 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6d73c96b/43b0aa1533674b7fb3e6a5cd1fca4954/FLAG45ad43305 [2021-04-28 15:10:46,461 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6d73c96b/43b0aa1533674b7fb3e6a5cd1fca4954 [2021-04-28 15:10:46,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 15:10:46,513 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 15:10:46,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 15:10:46,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 15:10:46,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 15:10:46,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 03:10:46" (1/1) ... [2021-04-28 15:10:46,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24b7210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:10:46, skipping insertion in model container [2021-04-28 15:10:46,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 03:10:46" (1/1) ... [2021-04-28 15:10:46,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 15:10:46,599 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 15:10:47,235 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i[42004,42017] [2021-04-28 15:10:47,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 15:10:47,277 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 15:10:47,380 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i[42004,42017] [2021-04-28 15:10:47,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 15:10:47,623 INFO L208 MainTranslator]: Completed translation [2021-04-28 15:10:47,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:10:47 WrapperNode [2021-04-28 15:10:47,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 15:10:47,629 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 15:10:47,630 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 15:10:47,632 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 15:10:47,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:10:47" (1/1) ... [2021-04-28 15:10:47,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:10:47" (1/1) ... [2021-04-28 15:10:47,763 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 15:10:47,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 15:10:47,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 15:10:47,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 15:10:47,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:10:47" (1/1) ... [2021-04-28 15:10:47,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:10:47" (1/1) ... [2021-04-28 15:10:47,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:10:47" (1/1) ... [2021-04-28 15:10:47,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:10:47" (1/1) ... [2021-04-28 15:10:47,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:10:47" (1/1) ... [2021-04-28 15:10:47,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:10:47" (1/1) ... [2021-04-28 15:10:47,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:10:47" (1/1) ... [2021-04-28 15:10:47,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 15:10:47,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 15:10:47,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 15:10:47,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 15:10:47,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:10:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 15:10:47,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 15:10:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 15:10:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-28 15:10:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-04-28 15:10:47,995 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-04-28 15:10:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-04-28 15:10:47,995 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-04-28 15:10:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 15:10:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-04-28 15:10:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 15:10:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 15:10:47,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 15:10:47,999 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 15:10:48,521 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 15:10:48,521 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-04-28 15:10:48,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 03:10:48 BoogieIcfgContainer [2021-04-28 15:10:48,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 15:10:48,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 15:10:48,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 15:10:48,532 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 15:10:48,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 03:10:46" (1/3) ... [2021-04-28 15:10:48,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@855e54e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 03:10:48, skipping insertion in model container [2021-04-28 15:10:48,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:10:47" (2/3) ... [2021-04-28 15:10:48,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@855e54e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 03:10:48, skipping insertion in model container [2021-04-28 15:10:48,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 03:10:48" (3/3) ... [2021-04-28 15:10:48,537 INFO L111 eAbstractionObserver]: Analyzing ICFG sync01.i [2021-04-28 15:10:48,546 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 15:10:48,553 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-28 15:10:48,554 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 15:10:48,601 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,601 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,602 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,602 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,602 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,602 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,603 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,603 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,603 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,604 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,604 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,604 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,605 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,605 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,605 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,605 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,606 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,606 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,606 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,606 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,607 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,607 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,607 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,607 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,608 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,608 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,609 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,609 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,609 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,609 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,610 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,610 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,610 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,610 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,610 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,611 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,611 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,611 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,612 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,612 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,612 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,613 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,613 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,613 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,613 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,614 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,614 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,614 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,614 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,615 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,615 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,615 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,618 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,619 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,619 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,620 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,620 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,620 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,620 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,626 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,626 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,627 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,627 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,627 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,628 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,628 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:10:48,636 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-04-28 15:10:48,667 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-28 15:10:48,702 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 15:10:48,703 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 15:10:48,703 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 15:10:48,703 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 15:10:48,703 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 15:10:48,703 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 15:10:48,704 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 15:10:48,704 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 15:10:48,725 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 96 transitions, 214 flow [2021-04-28 15:10:48,795 INFO L129 PetriNetUnfolder]: 6/96 cut-off events. [2021-04-28 15:10:48,795 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-04-28 15:10:48,801 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 96 events. 6/96 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 75 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 59. Up to 3 conditions per place. [2021-04-28 15:10:48,802 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 96 transitions, 214 flow [2021-04-28 15:10:48,810 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 84 transitions, 186 flow [2021-04-28 15:10:48,812 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 15:10:48,838 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 84 transitions, 186 flow [2021-04-28 15:10:48,845 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 84 transitions, 186 flow [2021-04-28 15:10:48,870 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 84 transitions, 186 flow [2021-04-28 15:10:48,905 INFO L129 PetriNetUnfolder]: 5/86 cut-off events. [2021-04-28 15:10:48,905 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-04-28 15:10:48,906 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 86 events. 5/86 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 59. Up to 3 conditions per place. [2021-04-28 15:10:48,913 INFO L146 LiptonReduction]: Number of co-enabled transitions 840 [2021-04-28 15:10:56,071 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2021-04-28 15:10:56,266 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2021-04-28 15:10:56,476 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2021-04-28 15:10:56,694 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2021-04-28 15:10:56,944 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-04-28 15:10:57,193 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-04-28 15:10:57,492 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2021-04-28 15:10:57,598 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-28 15:10:57,836 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2021-04-28 15:10:57,942 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-28 15:10:58,080 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 15:10:58,267 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 15:10:58,476 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2021-04-28 15:10:58,690 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2021-04-28 15:10:58,918 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2021-04-28 15:10:59,164 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2021-04-28 15:10:59,381 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-04-28 15:10:59,603 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-04-28 15:11:01,699 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 15:11:01,825 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 15:11:01,956 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 15:11:02,086 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 15:11:02,670 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 15:11:02,779 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 15:11:04,813 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-04-28 15:11:04,931 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-28 15:11:05,067 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-04-28 15:11:05,188 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-28 15:11:05,516 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 15:11:06,254 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 15:11:06,361 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 15:11:06,483 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 15:11:06,710 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 15:11:06,829 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 15:11:06,957 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 15:11:07,067 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 15:11:07,193 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-28 15:11:07,302 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 15:11:07,420 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-28 15:11:07,530 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 15:11:08,676 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 15:11:08,875 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 15:11:09,979 WARN L205 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-04-28 15:11:10,166 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 15:11:10,576 WARN L205 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-04-28 15:11:10,772 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 15:11:11,102 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2021-04-28 15:11:11,251 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 15:11:11,566 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2021-04-28 15:11:11,718 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 15:11:12,302 WARN L205 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 133 [2021-04-28 15:11:12,570 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-04-28 15:11:13,179 WARN L205 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 133 [2021-04-28 15:11:13,449 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-04-28 15:11:13,802 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2021-04-28 15:11:13,973 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-28 15:11:14,359 WARN L205 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2021-04-28 15:11:14,522 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-28 15:11:15,036 WARN L205 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 121 [2021-04-28 15:11:15,270 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-04-28 15:11:15,787 WARN L205 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 121 [2021-04-28 15:11:16,026 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-04-28 15:11:16,650 WARN L205 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 139 [2021-04-28 15:11:16,920 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-04-28 15:11:17,564 WARN L205 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 139 [2021-04-28 15:11:17,843 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-04-28 15:11:18,427 WARN L205 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 130 [2021-04-28 15:11:18,701 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-04-28 15:11:19,279 WARN L205 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 130 [2021-04-28 15:11:19,533 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-04-28 15:11:20,250 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2021-04-28 15:11:20,405 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 15:11:20,734 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2021-04-28 15:11:20,887 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 15:11:21,401 WARN L205 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 124 [2021-04-28 15:11:21,699 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-04-28 15:11:22,354 WARN L205 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 124 [2021-04-28 15:11:22,621 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-04-28 15:11:22,953 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2021-04-28 15:11:23,095 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 15:11:23,424 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2021-04-28 15:11:23,570 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 15:11:23,972 WARN L205 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2021-04-28 15:11:24,162 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 15:11:24,585 WARN L205 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2021-04-28 15:11:24,770 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 15:11:25,316 WARN L205 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 121 [2021-04-28 15:11:25,565 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-04-28 15:11:26,094 WARN L205 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 121 [2021-04-28 15:11:26,324 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-04-28 15:11:26,908 WARN L205 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 127 [2021-04-28 15:11:27,167 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2021-04-28 15:11:27,744 WARN L205 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 127 [2021-04-28 15:11:28,009 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2021-04-28 15:11:28,113 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 15:11:28,772 WARN L205 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-28 15:11:28,936 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-04-28 15:11:29,306 WARN L205 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-28 15:11:29,465 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-04-28 15:11:30,110 WARN L205 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 136 [2021-04-28 15:11:30,451 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2021-04-28 15:11:31,224 WARN L205 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 136 [2021-04-28 15:11:31,585 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2021-04-28 15:11:31,952 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2021-04-28 15:11:32,134 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 15:11:32,498 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2021-04-28 15:11:32,665 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 15:11:33,289 WARN L205 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 121 [2021-04-28 15:11:33,605 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-04-28 15:11:34,281 WARN L205 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 121 [2021-04-28 15:11:34,589 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-04-28 15:11:35,279 WARN L205 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 118 [2021-04-28 15:11:35,629 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-04-28 15:11:36,292 WARN L205 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 118 [2021-04-28 15:11:36,614 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-04-28 15:11:37,988 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 164 DAG size of output: 160 [2021-04-28 15:11:38,619 WARN L205 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-04-28 15:11:40,087 WARN L205 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 164 DAG size of output: 160 [2021-04-28 15:11:40,777 WARN L205 SmtUtils]: Spent 687.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-04-28 15:11:42,455 WARN L205 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 175 DAG size of output: 171 [2021-04-28 15:11:43,219 WARN L205 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-04-28 15:11:44,807 WARN L205 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 175 DAG size of output: 171 [2021-04-28 15:11:45,650 WARN L205 SmtUtils]: Spent 838.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-04-28 15:11:47,299 WARN L205 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2021-04-28 15:11:48,029 WARN L205 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-04-28 15:11:49,698 WARN L205 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2021-04-28 15:11:50,428 WARN L205 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-04-28 15:11:51,775 WARN L205 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 152 DAG size of output: 150 [2021-04-28 15:11:52,481 WARN L205 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-04-28 15:11:53,783 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 152 DAG size of output: 150 [2021-04-28 15:11:54,434 WARN L205 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-04-28 15:11:54,952 WARN L205 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-04-28 15:11:55,465 WARN L205 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-04-28 15:11:55,971 WARN L205 SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-04-28 15:11:56,555 WARN L205 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-04-28 15:11:57,150 WARN L205 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-04-28 15:11:57,739 WARN L205 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-04-28 15:11:58,318 WARN L205 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-04-28 15:11:58,875 WARN L205 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-04-28 15:11:59,401 WARN L205 SmtUtils]: Spent 522.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2021-04-28 15:11:59,935 WARN L205 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2021-04-28 15:12:00,458 WARN L205 SmtUtils]: Spent 520.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2021-04-28 15:12:00,991 WARN L205 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2021-04-28 15:12:01,556 WARN L205 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-04-28 15:12:02,116 WARN L205 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-04-28 15:12:02,753 WARN L205 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-04-28 15:12:03,332 WARN L205 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-04-28 15:12:05,222 WARN L205 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2021-04-28 15:12:06,167 WARN L205 SmtUtils]: Spent 941.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-04-28 15:12:08,157 WARN L205 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2021-04-28 15:12:09,060 WARN L205 SmtUtils]: Spent 900.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-04-28 15:12:09,121 INFO L158 LiptonReduction]: Checked pairs total: 5087 [2021-04-28 15:12:09,121 INFO L160 LiptonReduction]: Total number of compositions: 158 [2021-04-28 15:12:09,127 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 80317 [2021-04-28 15:12:09,165 INFO L129 PetriNetUnfolder]: 5/96 cut-off events. [2021-04-28 15:12:09,165 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-04-28 15:12:09,166 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 15:12:09,167 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 15:12:09,168 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 15:12:09,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 15:12:09,177 INFO L82 PathProgramCache]: Analyzing trace with hash 309450971, now seen corresponding path program 1 times [2021-04-28 15:12:09,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 15:12:09,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027030011] [2021-04-28 15:12:09,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 15:12:09,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 15:12:09,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:12:09,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 15:12:09,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:12:09,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 15:12:09,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 15:12:09,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027030011] [2021-04-28 15:12:09,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 15:12:09,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 15:12:09,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153897661] [2021-04-28 15:12:09,556 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-04-28 15:12:09,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 15:12:09,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-04-28 15:12:09,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-04-28 15:12:09,576 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 254 [2021-04-28 15:12:09,583 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 96 transitions, 210 flow. Second operand has 2 states, 2 states have (on average 249.0) internal successors, (498), 2 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:12:09,583 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 15:12:09,583 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 254 [2021-04-28 15:12:09,585 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 15:12:09,634 INFO L129 PetriNetUnfolder]: 3/94 cut-off events. [2021-04-28 15:12:09,634 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-04-28 15:12:09,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 94 events. 3/94 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 498 event pairs, 0 based on Foata normal form. 2/28 useless extension candidates. Maximal degree in co-relation 102. Up to 3 conditions per place. [2021-04-28 15:12:09,639 INFO L132 encePairwiseOnDemand]: 250/254 looper letters, 0 selfloop transitions, 0 changer transitions 50/92 dead transitions. [2021-04-28 15:12:09,640 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 92 transitions, 202 flow [2021-04-28 15:12:09,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-28 15:12:09,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-04-28 15:12:09,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 500 transitions. [2021-04-28 15:12:09,691 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.984251968503937 [2021-04-28 15:12:09,692 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 500 transitions. [2021-04-28 15:12:09,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 500 transitions. [2021-04-28 15:12:09,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 15:12:09,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 500 transitions. [2021-04-28 15:12:09,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 250.0) internal successors, (500), 2 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:12:09,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:12:09,726 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:12:09,729 INFO L185 Difference]: Start difference. First operand has 97 places, 96 transitions, 210 flow. Second operand 2 states and 500 transitions. [2021-04-28 15:12:09,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 92 transitions, 202 flow [2021-04-28 15:12:09,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 92 transitions, 190 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 15:12:09,759 INFO L241 Difference]: Finished difference. Result has 92 places, 42 transitions, 90 flow [2021-04-28 15:12:09,766 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=90, PETRI_PLACES=92, PETRI_TRANSITIONS=42} [2021-04-28 15:12:09,768 INFO L343 CegarLoopForPetriNet]: 97 programPoint places, -5 predicate places. [2021-04-28 15:12:09,769 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 15:12:09,769 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 42 transitions, 90 flow [2021-04-28 15:12:09,770 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 42 transitions, 90 flow [2021-04-28 15:12:09,771 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 42 transitions, 90 flow [2021-04-28 15:12:09,795 INFO L129 PetriNetUnfolder]: 3/44 cut-off events. [2021-04-28 15:12:09,796 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 15:12:09,796 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 44 events. 3/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 119 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2021-04-28 15:12:09,797 INFO L146 LiptonReduction]: Number of co-enabled transitions 756 [2021-04-28 15:12:09,832 INFO L158 LiptonReduction]: Checked pairs total: 738 [2021-04-28 15:12:09,832 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 15:12:09,833 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 64 [2021-04-28 15:12:09,835 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 42 transitions, 90 flow [2021-04-28 15:12:09,836 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 249.0) internal successors, (498), 2 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:12:09,837 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 15:12:09,837 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 15:12:09,837 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 15:12:09,837 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 15:12:09,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 15:12:09,840 INFO L82 PathProgramCache]: Analyzing trace with hash -348169701, now seen corresponding path program 1 times [2021-04-28 15:12:09,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 15:12:09,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310081249] [2021-04-28 15:12:09,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 15:12:09,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 15:12:10,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:12:10,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 15:12:10,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:12:10,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-28 15:12:10,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:12:10,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 15:12:10,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:12:10,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 15:12:10,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:12:10,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 15:12:10,191 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 15:12:10,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 15:12:10,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 15:12:10,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310081249] [2021-04-28 15:12:10,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 15:12:10,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 15:12:10,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581468386] [2021-04-28 15:12:10,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 15:12:10,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 15:12:10,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 15:12:10,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-04-28 15:12:10,209 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 254 [2021-04-28 15:12:10,212 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 42 transitions, 90 flow. Second operand has 7 states, 7 states have (on average 173.42857142857142) internal successors, (1214), 7 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:12:10,213 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 15:12:10,213 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 254 [2021-04-28 15:12:10,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 15:12:10,544 INFO L129 PetriNetUnfolder]: 5/68 cut-off events. [2021-04-28 15:12:10,544 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 15:12:10,545 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 68 events. 5/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 229 event pairs, 2 based on Foata normal form. 1/43 useless extension candidates. Maximal degree in co-relation 45. Up to 10 conditions per place. [2021-04-28 15:12:10,545 INFO L132 encePairwiseOnDemand]: 243/254 looper letters, 0 selfloop transitions, 0 changer transitions 42/42 dead transitions. [2021-04-28 15:12:10,545 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 42 transitions, 124 flow [2021-04-28 15:12:10,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-28 15:12:10,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-04-28 15:12:10,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1743 transitions. [2021-04-28 15:12:10,553 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6862204724409449 [2021-04-28 15:12:10,553 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1743 transitions. [2021-04-28 15:12:10,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1743 transitions. [2021-04-28 15:12:10,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 15:12:10,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1743 transitions. [2021-04-28 15:12:10,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 174.3) internal successors, (1743), 10 states have internal predecessors, (1743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:12:10,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 254.0) internal successors, (2794), 11 states have internal predecessors, (2794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:12:10,581 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 254.0) internal successors, (2794), 11 states have internal predecessors, (2794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:12:10,581 INFO L185 Difference]: Start difference. First operand has 41 places, 42 transitions, 90 flow. Second operand 10 states and 1743 transitions. [2021-04-28 15:12:10,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 42 transitions, 124 flow [2021-04-28 15:12:10,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 42 transitions, 124 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 15:12:10,584 INFO L241 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2021-04-28 15:12:10,584 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2021-04-28 15:12:10,585 INFO L343 CegarLoopForPetriNet]: 97 programPoint places, -51 predicate places. [2021-04-28 15:12:10,585 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 15:12:10,586 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 0 transitions, 0 flow [2021-04-28 15:12:10,586 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 0 transitions, 0 flow [2021-04-28 15:12:10,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-28 15:12:10,587 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-28 15:12:10,587 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 15:12:10,587 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-28 15:12:10,587 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-28 15:12:10,588 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 15:12:10,588 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 15:12:10,588 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3 [2021-04-28 15:12:10,589 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-28 15:12:10,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 173.42857142857142) internal successors, (1214), 7 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:12:10,592 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 15:12:10,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 03:12:10 BasicIcfg [2021-04-28 15:12:10,598 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 15:12:10,600 INFO L168 Benchmark]: Toolchain (without parser) took 84130.51 ms. Allocated memory was 302.0 MB in the beginning and 503.3 MB in the end (delta: 201.3 MB). Free memory was 272.3 MB in the beginning and 429.8 MB in the end (delta: -157.4 MB). Peak memory consumption was 43.5 MB. Max. memory is 16.0 GB. [2021-04-28 15:12:10,601 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 302.0 MB. Free memory was 272.1 MB in the beginning and 272.1 MB in the end (delta: 76.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 15:12:10,601 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1110.99 ms. Allocated memory is still 302.0 MB. Free memory was 269.2 MB in the beginning and 276.9 MB in the end (delta: -7.8 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.0 GB. [2021-04-28 15:12:10,602 INFO L168 Benchmark]: Boogie Procedure Inliner took 134.65 ms. Allocated memory is still 302.0 MB. Free memory was 276.9 MB in the beginning and 274.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 15:12:10,603 INFO L168 Benchmark]: Boogie Preprocessor took 77.57 ms. Allocated memory is still 302.0 MB. Free memory was 274.2 MB in the beginning and 272.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 15:12:10,603 INFO L168 Benchmark]: RCFGBuilder took 681.18 ms. Allocated memory is still 302.0 MB. Free memory was 272.8 MB in the beginning and 246.9 MB in the end (delta: 25.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-04-28 15:12:10,604 INFO L168 Benchmark]: TraceAbstraction took 82071.97 ms. Allocated memory was 302.0 MB in the beginning and 503.3 MB in the end (delta: 201.3 MB). Free memory was 246.2 MB in the beginning and 429.8 MB in the end (delta: -183.6 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.0 GB. [2021-04-28 15:12:10,607 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 302.0 MB. Free memory was 272.1 MB in the beginning and 272.1 MB in the end (delta: 76.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 1110.99 ms. Allocated memory is still 302.0 MB. Free memory was 269.2 MB in the beginning and 276.9 MB in the end (delta: -7.8 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 134.65 ms. Allocated memory is still 302.0 MB. Free memory was 276.9 MB in the beginning and 274.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 77.57 ms. Allocated memory is still 302.0 MB. Free memory was 274.2 MB in the beginning and 272.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 681.18 ms. Allocated memory is still 302.0 MB. Free memory was 272.8 MB in the beginning and 246.9 MB in the end (delta: 25.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 82071.97 ms. Allocated memory was 302.0 MB in the beginning and 503.3 MB in the end (delta: 201.3 MB). Free memory was 246.2 MB in the beginning and 429.8 MB in the end (delta: -183.6 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 80276.6ms, 85 PlacesBefore, 97 PlacesAfterwards, 84 TransitionsBefore, 96 TransitionsAfterwards, 840 CoEnabledTransitionPairs, 8 FixpointIterations, 139 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 158 TotalNumberOfCompositions, 5087 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1139, positive: 931, positive conditional: 931, positive unconditional: 0, negative: 208, negative conditional: 208, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 574, positive: 538, positive conditional: 0, positive unconditional: 538, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 574, positive: 538, positive conditional: 0, positive unconditional: 538, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 574, positive: 515, positive conditional: 0, positive unconditional: 515, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 59, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 312, positive: 95, positive conditional: 0, positive unconditional: 95, negative: 217, negative conditional: 0, negative unconditional: 217, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1139, positive: 393, positive conditional: 393, positive unconditional: 0, negative: 172, negative conditional: 172, negative unconditional: 0, unknown: 574, unknown conditional: 574, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 574, Positive cache size: 538, Positive conditional cache size: 538, Positive unconditional cache size: 0, Negative cache size: 36, Negative conditional cache size: 36, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 62.5ms, 92 PlacesBefore, 41 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 756 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 738 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 100, positive: 64, positive conditional: 64, positive unconditional: 0, negative: 36, negative conditional: 36, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 18, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 25, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 100, positive: 49, positive conditional: 49, positive unconditional: 0, negative: 33, negative conditional: 33, negative unconditional: 0, unknown: 18, unknown conditional: 18, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 592, Positive cache size: 553, Positive conditional cache size: 553, Positive unconditional cache size: 0, Negative cache size: 39, Negative conditional cache size: 39, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.3ms, 46 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 592, Positive cache size: 553, Positive conditional cache size: 553, Positive unconditional cache size: 0, Negative cache size: 39, Negative conditional cache size: 39, Negative unconditional cache size: 0 - PositiveResult [Line: 966]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 24.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 81897.1ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 582.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 80436.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3 SDtfs, 14 SDslu, 6 SDs, 0 SdLazy, 38 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 75.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 239.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=210occurred in iteration=0, InterpolantAutomatonStates: 12, 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: 17.1ms SsaConstructionTime, 153.2ms SatisfiabilityAnalysisTime, 393.0ms InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 78 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...