/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/pthread-wmm/safe027_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 05:08:19,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 05:08:19,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 05:08:19,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 05:08:19,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 05:08:19,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 05:08:19,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 05:08:19,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 05:08:19,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 05:08:19,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 05:08:19,905 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 05:08:19,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 05:08:19,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 05:08:19,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 05:08:19,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 05:08:19,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 05:08:19,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 05:08:19,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 05:08:19,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 05:08:19,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 05:08:19,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 05:08:19,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 05:08:19,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 05:08:19,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 05:08:19,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 05:08:19,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 05:08:19,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 05:08:19,939 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 05:08:19,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 05:08:19,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 05:08:19,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 05:08:19,940 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 05:08:19,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 05:08:19,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 05:08:19,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 05:08:19,942 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 05:08:19,942 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 05:08:19,979 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 05:08:19,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 05:08:19,983 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 05:08:19,983 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 05:08:19,983 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 05:08:19,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 05:08:19,983 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 05:08:19,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 05:08:19,984 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 05:08:19,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 05:08:19,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 05:08:19,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 05:08:19,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 05:08:19,985 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 05:08:19,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 05:08:19,985 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 05:08:19,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 05:08:19,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 05:08:19,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 05:08:19,986 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 05:08:19,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 05:08:19,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 05:08:19,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 05:08:19,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 05:08:19,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 05:08:19,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 05:08:19,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 05:08:19,987 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 05:08:19,987 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 05:08:19,987 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 05:08:19,987 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 05:08:20,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 05:08:20,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 05:08:20,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 05:08:20,285 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 05:08:20,285 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 05:08:20,286 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2021-03-25 05:08:20,354 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b8abf2f6/04c5296a0086498792c16a11ff38d5c1/FLAG92c4b6ff3 [2021-03-25 05:08:20,870 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 05:08:20,870 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2021-03-25 05:08:20,882 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b8abf2f6/04c5296a0086498792c16a11ff38d5c1/FLAG92c4b6ff3 [2021-03-25 05:08:21,351 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b8abf2f6/04c5296a0086498792c16a11ff38d5c1 [2021-03-25 05:08:21,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 05:08:21,355 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 05:08:21,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 05:08:21,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 05:08:21,362 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 05:08:21,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 05:08:21" (1/1) ... [2021-03-25 05:08:21,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66b14a9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:08:21, skipping insertion in model container [2021-03-25 05:08:21,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 05:08:21" (1/1) ... [2021-03-25 05:08:21,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 05:08:21,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 05:08:21,539 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i[950,963] [2021-03-25 05:08:21,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 05:08:21,710 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 05:08:21,723 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i[950,963] [2021-03-25 05:08:21,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 05:08:21,831 INFO L208 MainTranslator]: Completed translation [2021-03-25 05:08:21,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:08:21 WrapperNode [2021-03-25 05:08:21,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 05:08:21,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 05:08:21,834 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 05:08:21,834 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 05:08:21,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:08:21" (1/1) ... [2021-03-25 05:08:21,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:08:21" (1/1) ... [2021-03-25 05:08:21,897 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 05:08:21,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 05:08:21,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 05:08:21,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 05:08:21,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:08:21" (1/1) ... [2021-03-25 05:08:21,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:08:21" (1/1) ... [2021-03-25 05:08:21,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:08:21" (1/1) ... [2021-03-25 05:08:21,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:08:21" (1/1) ... [2021-03-25 05:08:21,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:08:21" (1/1) ... [2021-03-25 05:08:21,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:08:21" (1/1) ... [2021-03-25 05:08:21,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:08:21" (1/1) ... [2021-03-25 05:08:21,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 05:08:21,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 05:08:21,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 05:08:21,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 05:08:21,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:08:21" (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 05:08:21,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 05:08:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 05:08:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 05:08:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 05:08:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 05:08:21,976 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 05:08:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 05:08:21,976 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 05:08:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 05:08:21,977 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 05:08:21,977 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-25 05:08:21,977 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-25 05:08:21,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 05:08:21,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 05:08:21,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 05:08:21,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 05:08:21,982 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 05:08:22,263 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 05:08:22,263 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-25 05:08:22,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 05:08:22 BoogieIcfgContainer [2021-03-25 05:08:22,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 05:08:22,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 05:08:22,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 05:08:22,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 05:08:22,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 05:08:21" (1/3) ... [2021-03-25 05:08:22,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1672b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 05:08:22, skipping insertion in model container [2021-03-25 05:08:22,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:08:21" (2/3) ... [2021-03-25 05:08:22,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1672b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 05:08:22, skipping insertion in model container [2021-03-25 05:08:22,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 05:08:22" (3/3) ... [2021-03-25 05:08:22,271 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.oepc.i [2021-03-25 05:08:22,276 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 05:08:22,279 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 05:08:22,280 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 05:08:22,328 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,328 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,328 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,328 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,329 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,329 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,329 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,329 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,329 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,330 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,330 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,330 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,330 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,330 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,331 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,331 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,331 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,331 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,331 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,331 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,332 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,332 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,332 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,332 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,332 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,333 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,333 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,333 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,333 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,334 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,334 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,334 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,334 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,334 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,335 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,335 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,335 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,335 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,335 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,335 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,336 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,336 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,336 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,336 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,336 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,337 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,337 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,337 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,339 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,339 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,339 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,351 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,352 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,352 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,352 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,354 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,354 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,356 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,356 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,356 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,356 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:22,364 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 05:08:22,382 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-25 05:08:22,412 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 05:08:22,412 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 05:08:22,412 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 05:08:22,412 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 05:08:22,413 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 05:08:22,413 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 05:08:22,413 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 05:08:22,414 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 05:08:22,428 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 87 transitions, 194 flow [2021-03-25 05:08:22,489 INFO L129 PetriNetUnfolder]: 2/83 cut-off events. [2021-03-25 05:08:22,489 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:08:22,494 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-03-25 05:08:22,494 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 87 transitions, 194 flow [2021-03-25 05:08:22,505 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 69 transitions, 150 flow [2021-03-25 05:08:22,507 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:08:22,522 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 69 transitions, 150 flow [2021-03-25 05:08:22,525 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 69 transitions, 150 flow [2021-03-25 05:08:22,526 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 69 transitions, 150 flow [2021-03-25 05:08:22,553 INFO L129 PetriNetUnfolder]: 1/69 cut-off events. [2021-03-25 05:08:22,553 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:08:22,554 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 69 events. 1/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2021-03-25 05:08:22,557 INFO L142 LiptonReduction]: Number of co-enabled transitions 1250 [2021-03-25 05:08:23,888 INFO L154 LiptonReduction]: Checked pairs total: 1387 [2021-03-25 05:08:23,888 INFO L156 LiptonReduction]: Total number of compositions: 44 [2021-03-25 05:08:23,890 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1384 [2021-03-25 05:08:23,899 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-25 05:08:23,899 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:08:23,899 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:08:23,900 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:08:23,900 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:08:23,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:08:23,905 INFO L82 PathProgramCache]: Analyzing trace with hash 654156635, now seen corresponding path program 1 times [2021-03-25 05:08:23,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:08:23,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669300712] [2021-03-25 05:08:23,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:08:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:08:24,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:24,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:08:24,190 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 05:08:24,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 05:08:24,208 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 05:08:24,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669300712] [2021-03-25 05:08:24,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:08:24,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:08:24,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091824148] [2021-03-25 05:08:24,217 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 05:08:24,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:08:24,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 05:08:24,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 05:08:24,231 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 131 [2021-03-25 05:08:24,235 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states 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 05:08:24,235 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:08:24,235 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 131 [2021-03-25 05:08:24,236 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:08:24,267 INFO L129 PetriNetUnfolder]: 14/57 cut-off events. [2021-03-25 05:08:24,267 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:08:24,268 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 57 events. 14/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 126 event pairs, 10 based on Foata normal form. 1/50 useless extension candidates. Maximal degree in co-relation 87. Up to 31 conditions per place. [2021-03-25 05:08:24,270 INFO L132 encePairwiseOnDemand]: 127/131 looper letters, 6 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2021-03-25 05:08:24,270 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 27 transitions, 84 flow [2021-03-25 05:08:24,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 05:08:24,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 05:08:24,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 340 transitions. [2021-03-25 05:08:24,287 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8651399491094147 [2021-03-25 05:08:24,287 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 340 transitions. [2021-03-25 05:08:24,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 340 transitions. [2021-03-25 05:08:24,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:08:24,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 340 transitions. [2021-03-25 05:08:24,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states 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 05:08:24,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states 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 05:08:24,310 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states 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 05:08:24,311 INFO L185 Difference]: Start difference. First operand has 38 places, 25 transitions, 62 flow. Second operand 3 states and 340 transitions. [2021-03-25 05:08:24,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 27 transitions, 84 flow [2021-03-25 05:08:24,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 27 transitions, 80 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 05:08:24,315 INFO L241 Difference]: Finished difference. Result has 37 places, 27 transitions, 77 flow [2021-03-25 05:08:24,317 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=37, PETRI_TRANSITIONS=27} [2021-03-25 05:08:24,318 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2021-03-25 05:08:24,318 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:08:24,318 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 27 transitions, 77 flow [2021-03-25 05:08:24,319 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 27 transitions, 77 flow [2021-03-25 05:08:24,319 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 27 transitions, 77 flow [2021-03-25 05:08:24,333 INFO L129 PetriNetUnfolder]: 3/35 cut-off events. [2021-03-25 05:08:24,333 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-25 05:08:24,334 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 35 events. 3/35 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 1 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 46. Up to 10 conditions per place. [2021-03-25 05:08:24,335 INFO L142 LiptonReduction]: Number of co-enabled transitions 224 [2021-03-25 05:08:24,791 INFO L154 LiptonReduction]: Checked pairs total: 484 [2021-03-25 05:08:24,791 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 05:08:24,792 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 474 [2021-03-25 05:08:24,792 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 23 transitions, 69 flow [2021-03-25 05:08:24,793 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states 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 05:08:24,793 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:08:24,793 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:08:24,793 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 05:08:24,793 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:08:24,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:08:24,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1860134279, now seen corresponding path program 1 times [2021-03-25 05:08:24,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:08:24,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749114319] [2021-03-25 05:08:24,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:08:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:08:24,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:24,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:08:24,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:24,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:24,900 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 05:08:24,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 05:08:24,909 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 05:08:24,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749114319] [2021-03-25 05:08:24,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:08:24,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:08:24,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490486478] [2021-03-25 05:08:24,910 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:08:24,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:08:24,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:08:24,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:08:24,912 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 135 [2021-03-25 05:08:24,913 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 69 flow. Second operand has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 0 states have call successors, (0), 0 states 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 05:08:24,913 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:08:24,913 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 135 [2021-03-25 05:08:24,913 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:08:24,962 INFO L129 PetriNetUnfolder]: 50/130 cut-off events. [2021-03-25 05:08:24,962 INFO L130 PetriNetUnfolder]: For 35/95 co-relation queries the response was YES. [2021-03-25 05:08:24,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 130 events. 50/130 cut-off events. For 35/95 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 506 event pairs, 4 based on Foata normal form. 6/126 useless extension candidates. Maximal degree in co-relation 263. Up to 53 conditions per place. [2021-03-25 05:08:24,964 INFO L132 encePairwiseOnDemand]: 127/135 looper letters, 10 selfloop transitions, 14 changer transitions 0/37 dead transitions. [2021-03-25 05:08:24,964 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 37 transitions, 161 flow [2021-03-25 05:08:24,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 05:08:24,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 05:08:24,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 544 transitions. [2021-03-25 05:08:24,967 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8059259259259259 [2021-03-25 05:08:24,967 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 544 transitions. [2021-03-25 05:08:24,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 544 transitions. [2021-03-25 05:08:24,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:08:24,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 544 transitions. [2021-03-25 05:08:24,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:24,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states 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 05:08:24,971 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states 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 05:08:24,972 INFO L185 Difference]: Start difference. First operand has 33 places, 23 transitions, 69 flow. Second operand 5 states and 544 transitions. [2021-03-25 05:08:24,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 37 transitions, 161 flow [2021-03-25 05:08:24,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 37 transitions, 156 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 05:08:24,973 INFO L241 Difference]: Finished difference. Result has 39 places, 33 transitions, 165 flow [2021-03-25 05:08:24,973 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=165, PETRI_PLACES=39, PETRI_TRANSITIONS=33} [2021-03-25 05:08:24,974 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 1 predicate places. [2021-03-25 05:08:24,974 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:08:24,974 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 33 transitions, 165 flow [2021-03-25 05:08:24,975 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 33 transitions, 165 flow [2021-03-25 05:08:24,975 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 33 transitions, 165 flow [2021-03-25 05:08:24,987 INFO L129 PetriNetUnfolder]: 36/114 cut-off events. [2021-03-25 05:08:24,987 INFO L130 PetriNetUnfolder]: For 64/93 co-relation queries the response was YES. [2021-03-25 05:08:24,988 INFO L84 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 114 events. 36/114 cut-off events. For 64/93 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 485 event pairs, 13 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 300. Up to 58 conditions per place. [2021-03-25 05:08:24,989 INFO L142 LiptonReduction]: Number of co-enabled transitions 272 [2021-03-25 05:08:25,127 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-03-25 05:08:25,352 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-03-25 05:08:25,424 INFO L154 LiptonReduction]: Checked pairs total: 194 [2021-03-25 05:08:25,425 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 05:08:25,425 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 451 [2021-03-25 05:08:25,426 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 32 transitions, 161 flow [2021-03-25 05:08:25,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 0 states have call successors, (0), 0 states 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 05:08:25,426 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:08:25,426 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:08:25,426 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 05:08:25,426 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:08:25,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:08:25,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1655815873, now seen corresponding path program 1 times [2021-03-25 05:08:25,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:08:25,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033628122] [2021-03-25 05:08:25,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:08:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:08:25,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:25,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:08:25,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:25,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:25,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:25,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:25,474 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 05:08:25,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033628122] [2021-03-25 05:08:25,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:08:25,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:08:25,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342533467] [2021-03-25 05:08:25,475 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:08:25,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:08:25,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:08:25,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:08:25,477 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 136 [2021-03-25 05:08:25,477 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 161 flow. Second operand has 4 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 0 states have call successors, (0), 0 states 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 05:08:25,477 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:08:25,478 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 136 [2021-03-25 05:08:25,478 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:08:25,527 INFO L129 PetriNetUnfolder]: 49/155 cut-off events. [2021-03-25 05:08:25,527 INFO L130 PetriNetUnfolder]: For 336/681 co-relation queries the response was YES. [2021-03-25 05:08:25,528 INFO L84 FinitePrefix]: Finished finitePrefix Result has 470 conditions, 155 events. 49/155 cut-off events. For 336/681 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 737 event pairs, 7 based on Foata normal form. 16/163 useless extension candidates. Maximal degree in co-relation 455. Up to 69 conditions per place. [2021-03-25 05:08:25,529 INFO L132 encePairwiseOnDemand]: 132/136 looper letters, 10 selfloop transitions, 7 changer transitions 5/43 dead transitions. [2021-03-25 05:08:25,529 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 43 transitions, 277 flow [2021-03-25 05:08:25,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:08:25,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:08:25,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 462 transitions. [2021-03-25 05:08:25,531 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8492647058823529 [2021-03-25 05:08:25,531 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 462 transitions. [2021-03-25 05:08:25,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 462 transitions. [2021-03-25 05:08:25,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:08:25,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 462 transitions. [2021-03-25 05:08:25,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 0 states have call successors, (0), 0 states 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 05:08:25,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states 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 05:08:25,534 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states 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 05:08:25,534 INFO L185 Difference]: Start difference. First operand has 38 places, 32 transitions, 161 flow. Second operand 4 states and 462 transitions. [2021-03-25 05:08:25,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 43 transitions, 277 flow [2021-03-25 05:08:25,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 43 transitions, 264 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 05:08:25,538 INFO L241 Difference]: Finished difference. Result has 42 places, 32 transitions, 178 flow [2021-03-25 05:08:25,538 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=178, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2021-03-25 05:08:25,538 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 4 predicate places. [2021-03-25 05:08:25,539 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:08:25,539 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 32 transitions, 178 flow [2021-03-25 05:08:25,539 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 32 transitions, 178 flow [2021-03-25 05:08:25,539 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 32 transitions, 178 flow [2021-03-25 05:08:25,549 INFO L129 PetriNetUnfolder]: 33/103 cut-off events. [2021-03-25 05:08:25,549 INFO L130 PetriNetUnfolder]: For 130/137 co-relation queries the response was YES. [2021-03-25 05:08:25,550 INFO L84 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 103 events. 33/103 cut-off events. For 130/137 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 413 event pairs, 10 based on Foata normal form. 1/102 useless extension candidates. Maximal degree in co-relation 300. Up to 52 conditions per place. [2021-03-25 05:08:25,551 INFO L142 LiptonReduction]: Number of co-enabled transitions 248 [2021-03-25 05:08:25,559 INFO L154 LiptonReduction]: Checked pairs total: 85 [2021-03-25 05:08:25,559 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:08:25,559 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-03-25 05:08:25,560 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 178 flow [2021-03-25 05:08:25,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 0 states have call successors, (0), 0 states 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 05:08:25,560 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:08:25,560 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:08:25,561 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 05:08:25,561 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:08:25,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:08:25,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1118988632, now seen corresponding path program 1 times [2021-03-25 05:08:25,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:08:25,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571789220] [2021-03-25 05:08:25,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:08:25,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:08:25,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:25,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:25,596 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 05:08:25,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571789220] [2021-03-25 05:08:25,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:08:25,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 05:08:25,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558821287] [2021-03-25 05:08:25,597 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 05:08:25,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:08:25,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 05:08:25,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 05:08:25,598 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 136 [2021-03-25 05:08:25,599 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states 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 05:08:25,599 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:08:25,599 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 136 [2021-03-25 05:08:25,599 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:08:25,610 INFO L129 PetriNetUnfolder]: 19/74 cut-off events. [2021-03-25 05:08:25,610 INFO L130 PetriNetUnfolder]: For 183/218 co-relation queries the response was YES. [2021-03-25 05:08:25,611 INFO L84 FinitePrefix]: Finished finitePrefix Result has 235 conditions, 74 events. 19/74 cut-off events. For 183/218 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 270 event pairs, 4 based on Foata normal form. 2/74 useless extension candidates. Maximal degree in co-relation 218. Up to 34 conditions per place. [2021-03-25 05:08:25,611 INFO L132 encePairwiseOnDemand]: 133/136 looper letters, 1 selfloop transitions, 5 changer transitions 0/32 dead transitions. [2021-03-25 05:08:25,611 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 32 transitions, 190 flow [2021-03-25 05:08:25,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 05:08:25,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 05:08:25,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2021-03-25 05:08:25,613 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8995098039215687 [2021-03-25 05:08:25,613 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2021-03-25 05:08:25,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2021-03-25 05:08:25,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:08:25,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2021-03-25 05:08:25,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states 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 05:08:25,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:25,615 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:25,616 INFO L185 Difference]: Start difference. First operand has 42 places, 32 transitions, 178 flow. Second operand 3 states and 367 transitions. [2021-03-25 05:08:25,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 32 transitions, 190 flow [2021-03-25 05:08:25,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 32 transitions, 182 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 05:08:25,618 INFO L241 Difference]: Finished difference. Result has 43 places, 32 transitions, 187 flow [2021-03-25 05:08:25,619 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=187, PETRI_PLACES=43, PETRI_TRANSITIONS=32} [2021-03-25 05:08:25,619 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 5 predicate places. [2021-03-25 05:08:25,619 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:08:25,619 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 32 transitions, 187 flow [2021-03-25 05:08:25,619 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 32 transitions, 187 flow [2021-03-25 05:08:25,619 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 32 transitions, 187 flow [2021-03-25 05:08:25,625 INFO L129 PetriNetUnfolder]: 19/76 cut-off events. [2021-03-25 05:08:25,626 INFO L130 PetriNetUnfolder]: For 152/165 co-relation queries the response was YES. [2021-03-25 05:08:25,626 INFO L84 FinitePrefix]: Finished finitePrefix Result has 235 conditions, 76 events. 19/76 cut-off events. For 152/165 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 289 event pairs, 7 based on Foata normal form. 1/76 useless extension candidates. Maximal degree in co-relation 219. Up to 34 conditions per place. [2021-03-25 05:08:25,627 INFO L142 LiptonReduction]: Number of co-enabled transitions 248 [2021-03-25 05:08:25,629 INFO L154 LiptonReduction]: Checked pairs total: 54 [2021-03-25 05:08:25,630 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:08:25,630 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-25 05:08:25,630 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 32 transitions, 187 flow [2021-03-25 05:08:25,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states 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 05:08:25,631 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:08:25,631 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:08:25,631 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 05:08:25,631 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:08:25,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:08:25,632 INFO L82 PathProgramCache]: Analyzing trace with hash 243791696, now seen corresponding path program 1 times [2021-03-25 05:08:25,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:08:25,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26759861] [2021-03-25 05:08:25,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:08:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:08:25,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:25,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:25,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:25,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:25,670 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 05:08:25,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26759861] [2021-03-25 05:08:25,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:08:25,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:08:25,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742482475] [2021-03-25 05:08:25,671 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:08:25,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:08:25,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:08:25,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:08:25,673 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 136 [2021-03-25 05:08:25,678 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 32 transitions, 187 flow. Second operand has 4 states, 4 states have (on average 112.75) internal successors, (451), 4 states have internal predecessors, (451), 0 states have call successors, (0), 0 states 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 05:08:25,678 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:08:25,679 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 136 [2021-03-25 05:08:25,679 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:08:25,704 INFO L129 PetriNetUnfolder]: 22/82 cut-off events. [2021-03-25 05:08:25,704 INFO L130 PetriNetUnfolder]: For 339/394 co-relation queries the response was YES. [2021-03-25 05:08:25,705 INFO L84 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 82 events. 22/82 cut-off events. For 339/394 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 299 event pairs, 2 based on Foata normal form. 11/91 useless extension candidates. Maximal degree in co-relation 259. Up to 36 conditions per place. [2021-03-25 05:08:25,705 INFO L132 encePairwiseOnDemand]: 132/136 looper letters, 4 selfloop transitions, 5 changer transitions 8/34 dead transitions. [2021-03-25 05:08:25,705 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 34 transitions, 225 flow [2021-03-25 05:08:25,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:08:25,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:08:25,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 458 transitions. [2021-03-25 05:08:25,707 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8419117647058824 [2021-03-25 05:08:25,707 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 458 transitions. [2021-03-25 05:08:25,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 458 transitions. [2021-03-25 05:08:25,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:08:25,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 458 transitions. [2021-03-25 05:08:25,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.5) internal successors, (458), 4 states have internal predecessors, (458), 0 states have call successors, (0), 0 states 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 05:08:25,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states 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 05:08:25,710 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states 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 05:08:25,710 INFO L185 Difference]: Start difference. First operand has 43 places, 32 transitions, 187 flow. Second operand 4 states and 458 transitions. [2021-03-25 05:08:25,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 34 transitions, 225 flow [2021-03-25 05:08:25,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 34 transitions, 215 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 05:08:25,713 INFO L241 Difference]: Finished difference. Result has 46 places, 24 transitions, 144 flow [2021-03-25 05:08:25,713 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=144, PETRI_PLACES=46, PETRI_TRANSITIONS=24} [2021-03-25 05:08:25,713 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 8 predicate places. [2021-03-25 05:08:25,713 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:08:25,714 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 24 transitions, 144 flow [2021-03-25 05:08:25,714 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 24 transitions, 144 flow [2021-03-25 05:08:25,714 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 24 transitions, 144 flow [2021-03-25 05:08:25,718 INFO L129 PetriNetUnfolder]: 8/42 cut-off events. [2021-03-25 05:08:25,718 INFO L130 PetriNetUnfolder]: For 110/113 co-relation queries the response was YES. [2021-03-25 05:08:25,718 INFO L84 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 42 events. 8/42 cut-off events. For 110/113 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 92 event pairs, 5 based on Foata normal form. 2/44 useless extension candidates. Maximal degree in co-relation 132. Up to 19 conditions per place. [2021-03-25 05:08:25,719 INFO L142 LiptonReduction]: Number of co-enabled transitions 130 [2021-03-25 05:08:25,721 INFO L154 LiptonReduction]: Checked pairs total: 64 [2021-03-25 05:08:25,721 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:08:25,721 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-25 05:08:25,721 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 24 transitions, 144 flow [2021-03-25 05:08:25,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 112.75) internal successors, (451), 4 states have internal predecessors, (451), 0 states have call successors, (0), 0 states 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 05:08:25,722 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:08:25,722 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:08:25,722 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 05:08:25,722 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:08:25,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:08:25,723 INFO L82 PathProgramCache]: Analyzing trace with hash 898757667, now seen corresponding path program 1 times [2021-03-25 05:08:25,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:08:25,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709799692] [2021-03-25 05:08:25,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:08:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:08:25,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:25,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:25,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:25,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:25,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:08:25,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709799692] [2021-03-25 05:08:25,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:08:25,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:08:25,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066880889] [2021-03-25 05:08:25,776 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:08:25,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:08:25,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:08:25,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:08:25,778 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2021-03-25 05:08:25,778 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 24 transitions, 144 flow. Second operand has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:25,778 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:08:25,779 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2021-03-25 05:08:25,779 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:08:25,850 INFO L129 PetriNetUnfolder]: 157/283 cut-off events. [2021-03-25 05:08:25,850 INFO L130 PetriNetUnfolder]: For 2393/2546 co-relation queries the response was YES. [2021-03-25 05:08:25,851 INFO L84 FinitePrefix]: Finished finitePrefix Result has 885 conditions, 283 events. 157/283 cut-off events. For 2393/2546 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1278 event pairs, 84 based on Foata normal form. 42/291 useless extension candidates. Maximal degree in co-relation 865. Up to 193 conditions per place. [2021-03-25 05:08:25,853 INFO L132 encePairwiseOnDemand]: 129/136 looper letters, 10 selfloop transitions, 10 changer transitions 0/37 dead transitions. [2021-03-25 05:08:25,854 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 37 transitions, 210 flow [2021-03-25 05:08:25,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 05:08:25,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 05:08:25,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 552 transitions. [2021-03-25 05:08:25,856 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8117647058823529 [2021-03-25 05:08:25,856 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 552 transitions. [2021-03-25 05:08:25,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 552 transitions. [2021-03-25 05:08:25,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:08:25,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 552 transitions. [2021-03-25 05:08:25,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 110.4) internal successors, (552), 5 states have internal predecessors, (552), 0 states have call successors, (0), 0 states 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 05:08:25,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states 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 05:08:25,860 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states 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 05:08:25,860 INFO L185 Difference]: Start difference. First operand has 46 places, 24 transitions, 144 flow. Second operand 5 states and 552 transitions. [2021-03-25 05:08:25,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 37 transitions, 210 flow [2021-03-25 05:08:25,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 37 transitions, 182 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-03-25 05:08:25,865 INFO L241 Difference]: Finished difference. Result has 46 places, 33 transitions, 191 flow [2021-03-25 05:08:25,865 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=191, PETRI_PLACES=46, PETRI_TRANSITIONS=33} [2021-03-25 05:08:25,865 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 8 predicate places. [2021-03-25 05:08:25,865 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:08:25,865 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 33 transitions, 191 flow [2021-03-25 05:08:25,865 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 33 transitions, 191 flow [2021-03-25 05:08:25,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 33 transitions, 191 flow [2021-03-25 05:08:25,891 INFO L129 PetriNetUnfolder]: 154/281 cut-off events. [2021-03-25 05:08:25,891 INFO L130 PetriNetUnfolder]: For 1253/1429 co-relation queries the response was YES. [2021-03-25 05:08:25,893 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1022 conditions, 281 events. 154/281 cut-off events. For 1253/1429 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 1367 event pairs, 83 based on Foata normal form. 6/247 useless extension candidates. Maximal degree in co-relation 1006. Up to 210 conditions per place. [2021-03-25 05:08:25,895 INFO L142 LiptonReduction]: Number of co-enabled transitions 214 [2021-03-25 05:08:25,915 INFO L154 LiptonReduction]: Checked pairs total: 39 [2021-03-25 05:08:25,915 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 05:08:25,915 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 50 [2021-03-25 05:08:25,918 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 32 transitions, 185 flow [2021-03-25 05:08:25,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:25,918 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:08:25,918 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:08:25,918 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 05:08:25,919 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:08:25,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:08:25,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1810273016, now seen corresponding path program 1 times [2021-03-25 05:08:25,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:08:25,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306362940] [2021-03-25 05:08:25,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:08:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:08:25,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:25,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:26,002 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-25 05:08:26,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:08:26,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:26,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:26,011 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 05:08:26,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306362940] [2021-03-25 05:08:26,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:08:26,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:08:26,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950371222] [2021-03-25 05:08:26,012 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 05:08:26,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:08:26,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 05:08:26,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 05:08:26,014 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2021-03-25 05:08:26,015 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 32 transitions, 185 flow. Second operand has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:26,015 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:08:26,015 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2021-03-25 05:08:26,015 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:08:26,076 INFO L129 PetriNetUnfolder]: 107/213 cut-off events. [2021-03-25 05:08:26,076 INFO L130 PetriNetUnfolder]: For 1914/2175 co-relation queries the response was YES. [2021-03-25 05:08:26,077 INFO L84 FinitePrefix]: Finished finitePrefix Result has 929 conditions, 213 events. 107/213 cut-off events. For 1914/2175 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 889 event pairs, 29 based on Foata normal form. 59/258 useless extension candidates. Maximal degree in co-relation 911. Up to 162 conditions per place. [2021-03-25 05:08:26,078 INFO L132 encePairwiseOnDemand]: 129/136 looper letters, 10 selfloop transitions, 14 changer transitions 0/41 dead transitions. [2021-03-25 05:08:26,079 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 41 transitions, 285 flow [2021-03-25 05:08:26,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 05:08:26,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 05:08:26,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 662 transitions. [2021-03-25 05:08:26,081 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8112745098039216 [2021-03-25 05:08:26,081 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 662 transitions. [2021-03-25 05:08:26,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 662 transitions. [2021-03-25 05:08:26,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:08:26,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 662 transitions. [2021-03-25 05:08:26,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 110.33333333333333) internal successors, (662), 6 states have internal predecessors, (662), 0 states have call successors, (0), 0 states 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 05:08:26,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 136.0) internal successors, (952), 7 states have internal predecessors, (952), 0 states have call successors, (0), 0 states 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 05:08:26,084 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 136.0) internal successors, (952), 7 states have internal predecessors, (952), 0 states have call successors, (0), 0 states 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 05:08:26,084 INFO L185 Difference]: Start difference. First operand has 46 places, 32 transitions, 185 flow. Second operand 6 states and 662 transitions. [2021-03-25 05:08:26,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 41 transitions, 285 flow [2021-03-25 05:08:26,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 41 transitions, 278 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 05:08:26,090 INFO L241 Difference]: Finished difference. Result has 50 places, 37 transitions, 274 flow [2021-03-25 05:08:26,091 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=274, PETRI_PLACES=50, PETRI_TRANSITIONS=37} [2021-03-25 05:08:26,091 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 12 predicate places. [2021-03-25 05:08:26,091 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:08:26,091 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 37 transitions, 274 flow [2021-03-25 05:08:26,091 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 37 transitions, 274 flow [2021-03-25 05:08:26,092 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 37 transitions, 274 flow [2021-03-25 05:08:26,116 INFO L129 PetriNetUnfolder]: 106/213 cut-off events. [2021-03-25 05:08:26,117 INFO L130 PetriNetUnfolder]: For 1403/1723 co-relation queries the response was YES. [2021-03-25 05:08:26,118 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1061 conditions, 213 events. 106/213 cut-off events. For 1403/1723 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 968 event pairs, 27 based on Foata normal form. 7/202 useless extension candidates. Maximal degree in co-relation 1042. Up to 163 conditions per place. [2021-03-25 05:08:26,119 INFO L142 LiptonReduction]: Number of co-enabled transitions 230 [2021-03-25 05:08:26,131 INFO L154 LiptonReduction]: Checked pairs total: 45 [2021-03-25 05:08:26,131 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 05:08:26,131 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40 [2021-03-25 05:08:26,132 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 36 transitions, 266 flow [2021-03-25 05:08:26,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:26,132 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:08:26,133 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:08:26,133 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 05:08:26,133 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:08:26,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:08:26,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1292366925, now seen corresponding path program 1 times [2021-03-25 05:08:26,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:08:26,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338596617] [2021-03-25 05:08:26,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:08:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:08:26,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:26,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:26,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:26,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:26,203 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-25 05:08:26,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:08:26,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:26,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:26,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:08:26,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338596617] [2021-03-25 05:08:26,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:08:26,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 05:08:26,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845201380] [2021-03-25 05:08:26,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 05:08:26,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:08:26,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 05:08:26,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 05:08:26,217 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2021-03-25 05:08:26,218 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 36 transitions, 266 flow. Second operand has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:26,218 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:08:26,218 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2021-03-25 05:08:26,218 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:08:26,284 INFO L129 PetriNetUnfolder]: 55/130 cut-off events. [2021-03-25 05:08:26,285 INFO L130 PetriNetUnfolder]: For 1309/1462 co-relation queries the response was YES. [2021-03-25 05:08:26,285 INFO L84 FinitePrefix]: Finished finitePrefix Result has 710 conditions, 130 events. 55/130 cut-off events. For 1309/1462 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 470 event pairs, 5 based on Foata normal form. 53/177 useless extension candidates. Maximal degree in co-relation 689. Up to 100 conditions per place. [2021-03-25 05:08:26,286 INFO L132 encePairwiseOnDemand]: 129/136 looper letters, 6 selfloop transitions, 18 changer transitions 4/45 dead transitions. [2021-03-25 05:08:26,286 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 45 transitions, 408 flow [2021-03-25 05:08:26,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 05:08:26,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 05:08:26,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 772 transitions. [2021-03-25 05:08:26,289 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8109243697478992 [2021-03-25 05:08:26,289 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 772 transitions. [2021-03-25 05:08:26,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 772 transitions. [2021-03-25 05:08:26,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:08:26,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 772 transitions. [2021-03-25 05:08:26,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 110.28571428571429) internal successors, (772), 7 states have internal predecessors, (772), 0 states have call successors, (0), 0 states 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 05:08:26,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 136.0) internal successors, (1088), 8 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states 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 05:08:26,294 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 136.0) internal successors, (1088), 8 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states 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 05:08:26,294 INFO L185 Difference]: Start difference. First operand has 50 places, 36 transitions, 266 flow. Second operand 7 states and 772 transitions. [2021-03-25 05:08:26,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 45 transitions, 408 flow [2021-03-25 05:08:26,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 45 transitions, 346 flow, removed 26 selfloop flow, removed 4 redundant places. [2021-03-25 05:08:26,299 INFO L241 Difference]: Finished difference. Result has 53 places, 41 transitions, 326 flow [2021-03-25 05:08:26,299 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=326, PETRI_PLACES=53, PETRI_TRANSITIONS=41} [2021-03-25 05:08:26,299 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 15 predicate places. [2021-03-25 05:08:26,299 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:08:26,299 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 41 transitions, 326 flow [2021-03-25 05:08:26,300 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 41 transitions, 326 flow [2021-03-25 05:08:26,300 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 41 transitions, 326 flow [2021-03-25 05:08:26,314 INFO L129 PetriNetUnfolder]: 52/127 cut-off events. [2021-03-25 05:08:26,314 INFO L130 PetriNetUnfolder]: For 560/597 co-relation queries the response was YES. [2021-03-25 05:08:26,315 INFO L84 FinitePrefix]: Finished finitePrefix Result has 614 conditions, 127 events. 52/127 cut-off events. For 560/597 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 489 event pairs, 5 based on Foata normal form. 2/121 useless extension candidates. Maximal degree in co-relation 594. Up to 89 conditions per place. [2021-03-25 05:08:26,316 INFO L142 LiptonReduction]: Number of co-enabled transitions 202 [2021-03-25 05:08:26,326 INFO L154 LiptonReduction]: Checked pairs total: 43 [2021-03-25 05:08:26,326 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 05:08:26,326 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-03-25 05:08:26,329 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 40 transitions, 316 flow [2021-03-25 05:08:26,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:26,330 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:08:26,330 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:08:26,330 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 05:08:26,330 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:08:26,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:08:26,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1403450698, now seen corresponding path program 1 times [2021-03-25 05:08:26,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:08:26,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342023095] [2021-03-25 05:08:26,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:08:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:08:26,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:26,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:08:26,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:26,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:26,395 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 05:08:26,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 05:08:26,407 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 05:08:26,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342023095] [2021-03-25 05:08:26,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:08:26,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:08:26,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021405405] [2021-03-25 05:08:26,408 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:08:26,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:08:26,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:08:26,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:08:26,409 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 136 [2021-03-25 05:08:26,410 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 40 transitions, 316 flow. Second operand has 4 states, 4 states have (on average 105.5) internal successors, (422), 4 states have internal predecessors, (422), 0 states have call successors, (0), 0 states 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 05:08:26,410 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:08:26,410 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 136 [2021-03-25 05:08:26,410 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:08:26,446 INFO L129 PetriNetUnfolder]: 65/153 cut-off events. [2021-03-25 05:08:26,447 INFO L130 PetriNetUnfolder]: For 940/1004 co-relation queries the response was YES. [2021-03-25 05:08:26,448 INFO L84 FinitePrefix]: Finished finitePrefix Result has 718 conditions, 153 events. 65/153 cut-off events. For 940/1004 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 584 event pairs, 4 based on Foata normal form. 9/151 useless extension candidates. Maximal degree in co-relation 696. Up to 106 conditions per place. [2021-03-25 05:08:26,448 INFO L132 encePairwiseOnDemand]: 129/136 looper letters, 5 selfloop transitions, 9 changer transitions 0/39 dead transitions. [2021-03-25 05:08:26,449 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 39 transitions, 313 flow [2021-03-25 05:08:26,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 05:08:26,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 05:08:26,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 534 transitions. [2021-03-25 05:08:26,450 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7852941176470588 [2021-03-25 05:08:26,450 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 534 transitions. [2021-03-25 05:08:26,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 534 transitions. [2021-03-25 05:08:26,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:08:26,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 534 transitions. [2021-03-25 05:08:26,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:26,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states 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 05:08:26,454 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states 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 05:08:26,454 INFO L185 Difference]: Start difference. First operand has 53 places, 40 transitions, 316 flow. Second operand 5 states and 534 transitions. [2021-03-25 05:08:26,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 39 transitions, 313 flow [2021-03-25 05:08:26,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 39 transitions, 268 flow, removed 15 selfloop flow, removed 5 redundant places. [2021-03-25 05:08:26,459 INFO L241 Difference]: Finished difference. Result has 52 places, 39 transitions, 278 flow [2021-03-25 05:08:26,459 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=278, PETRI_PLACES=52, PETRI_TRANSITIONS=39} [2021-03-25 05:08:26,459 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 14 predicate places. [2021-03-25 05:08:26,459 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:08:26,459 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 39 transitions, 278 flow [2021-03-25 05:08:26,460 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 39 transitions, 278 flow [2021-03-25 05:08:26,460 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 39 transitions, 278 flow [2021-03-25 05:08:26,472 INFO L129 PetriNetUnfolder]: 65/153 cut-off events. [2021-03-25 05:08:26,472 INFO L130 PetriNetUnfolder]: For 392/405 co-relation queries the response was YES. [2021-03-25 05:08:26,473 INFO L84 FinitePrefix]: Finished finitePrefix Result has 590 conditions, 153 events. 65/153 cut-off events. For 392/405 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 631 event pairs, 4 based on Foata normal form. 1/146 useless extension candidates. Maximal degree in co-relation 570. Up to 73 conditions per place. [2021-03-25 05:08:26,474 INFO L142 LiptonReduction]: Number of co-enabled transitions 200 [2021-03-25 05:08:26,498 INFO L154 LiptonReduction]: Checked pairs total: 10 [2021-03-25 05:08:26,499 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 05:08:26,499 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40 [2021-03-25 05:08:26,500 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 39 transitions, 280 flow [2021-03-25 05:08:26,500 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.5) internal successors, (422), 4 states have internal predecessors, (422), 0 states have call successors, (0), 0 states 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 05:08:26,500 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:08:26,500 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:08:26,500 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 05:08:26,500 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:08:26,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:08:26,501 INFO L82 PathProgramCache]: Analyzing trace with hash -735878060, now seen corresponding path program 2 times [2021-03-25 05:08:26,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:08:26,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877701473] [2021-03-25 05:08:26,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:08:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:08:26,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:26,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:26,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:26,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:26,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:26,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:26,543 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-25 05:08:26,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:08:26,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:26,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:26,553 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 05:08:26,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877701473] [2021-03-25 05:08:26,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:08:26,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 05:08:26,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582328947] [2021-03-25 05:08:26,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 05:08:26,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:08:26,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 05:08:26,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 05:08:26,555 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 137 [2021-03-25 05:08:26,556 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 39 transitions, 280 flow. Second operand has 7 states, 7 states have (on average 107.85714285714286) internal successors, (755), 7 states have internal predecessors, (755), 0 states have call successors, (0), 0 states 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 05:08:26,556 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:08:26,556 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 137 [2021-03-25 05:08:26,556 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:08:26,626 INFO L129 PetriNetUnfolder]: 58/140 cut-off events. [2021-03-25 05:08:26,626 INFO L130 PetriNetUnfolder]: For 458/573 co-relation queries the response was YES. [2021-03-25 05:08:26,626 INFO L84 FinitePrefix]: Finished finitePrefix Result has 623 conditions, 140 events. 58/140 cut-off events. For 458/573 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 529 event pairs, 0 based on Foata normal form. 48/178 useless extension candidates. Maximal degree in co-relation 601. Up to 68 conditions per place. [2021-03-25 05:08:26,627 INFO L132 encePairwiseOnDemand]: 130/137 looper letters, 2 selfloop transitions, 18 changer transitions 4/44 dead transitions. [2021-03-25 05:08:26,627 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 44 transitions, 376 flow [2021-03-25 05:08:26,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 05:08:26,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 05:08:26,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 882 transitions. [2021-03-25 05:08:26,630 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8047445255474452 [2021-03-25 05:08:26,630 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 882 transitions. [2021-03-25 05:08:26,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 882 transitions. [2021-03-25 05:08:26,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:08:26,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 882 transitions. [2021-03-25 05:08:26,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 110.25) internal successors, (882), 8 states have internal predecessors, (882), 0 states have call successors, (0), 0 states 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 05:08:26,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 137.0) internal successors, (1233), 9 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states 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 05:08:26,635 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 137.0) internal successors, (1233), 9 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states 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 05:08:26,636 INFO L185 Difference]: Start difference. First operand has 52 places, 39 transitions, 280 flow. Second operand 8 states and 882 transitions. [2021-03-25 05:08:26,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 44 transitions, 376 flow [2021-03-25 05:08:26,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 44 transitions, 346 flow, removed 12 selfloop flow, removed 2 redundant places. [2021-03-25 05:08:26,639 INFO L241 Difference]: Finished difference. Result has 60 places, 40 transitions, 318 flow [2021-03-25 05:08:26,639 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=318, PETRI_PLACES=60, PETRI_TRANSITIONS=40} [2021-03-25 05:08:26,639 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 22 predicate places. [2021-03-25 05:08:26,640 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:08:26,640 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 40 transitions, 318 flow [2021-03-25 05:08:26,640 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 40 transitions, 318 flow [2021-03-25 05:08:26,640 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 40 transitions, 318 flow [2021-03-25 05:08:26,651 INFO L129 PetriNetUnfolder]: 52/132 cut-off events. [2021-03-25 05:08:26,651 INFO L130 PetriNetUnfolder]: For 330/362 co-relation queries the response was YES. [2021-03-25 05:08:26,652 INFO L84 FinitePrefix]: Finished finitePrefix Result has 583 conditions, 132 events. 52/132 cut-off events. For 330/362 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 554 event pairs, 1 based on Foata normal form. 1/123 useless extension candidates. Maximal degree in co-relation 560. Up to 60 conditions per place. [2021-03-25 05:08:26,653 INFO L142 LiptonReduction]: Number of co-enabled transitions 200 [2021-03-25 05:08:26,724 INFO L154 LiptonReduction]: Checked pairs total: 6 [2021-03-25 05:08:26,724 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 05:08:26,724 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 84 [2021-03-25 05:08:26,725 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 38 transitions, 304 flow [2021-03-25 05:08:26,726 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 107.85714285714286) internal successors, (755), 7 states have internal predecessors, (755), 0 states have call successors, (0), 0 states 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 05:08:26,726 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:08:26,726 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:08:26,726 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 05:08:26,726 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:08:26,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:08:26,727 INFO L82 PathProgramCache]: Analyzing trace with hash 909592091, now seen corresponding path program 1 times [2021-03-25 05:08:26,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:08:26,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135036001] [2021-03-25 05:08:26,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:08:26,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:08:26,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:26,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:08:26,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:26,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:26,792 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 05:08:26,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 05:08:26,803 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 05:08:26,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135036001] [2021-03-25 05:08:26,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:08:26,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:08:26,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857417026] [2021-03-25 05:08:26,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:08:26,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:08:26,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:08:26,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:08:26,804 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 138 [2021-03-25 05:08:26,805 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 38 transitions, 304 flow. Second operand has 4 states, 4 states have (on average 105.5) internal successors, (422), 4 states have internal predecessors, (422), 0 states have call successors, (0), 0 states 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 05:08:26,805 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:08:26,805 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 138 [2021-03-25 05:08:26,805 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:08:26,846 INFO L129 PetriNetUnfolder]: 59/135 cut-off events. [2021-03-25 05:08:26,847 INFO L130 PetriNetUnfolder]: For 434/503 co-relation queries the response was YES. [2021-03-25 05:08:26,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 590 conditions, 135 events. 59/135 cut-off events. For 434/503 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 541 event pairs, 0 based on Foata normal form. 9/133 useless extension candidates. Maximal degree in co-relation 572. Up to 53 conditions per place. [2021-03-25 05:08:26,848 INFO L132 encePairwiseOnDemand]: 130/138 looper letters, 0 selfloop transitions, 0 changer transitions 42/42 dead transitions. [2021-03-25 05:08:26,848 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 42 transitions, 352 flow [2021-03-25 05:08:26,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 05:08:26,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 05:08:26,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 534 transitions. [2021-03-25 05:08:26,850 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7739130434782608 [2021-03-25 05:08:26,850 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 534 transitions. [2021-03-25 05:08:26,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 534 transitions. [2021-03-25 05:08:26,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:08:26,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 534 transitions. [2021-03-25 05:08:26,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:26,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 138.0) internal successors, (828), 6 states have internal predecessors, (828), 0 states have call successors, (0), 0 states 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 05:08:26,853 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 138.0) internal successors, (828), 6 states have internal predecessors, (828), 0 states have call successors, (0), 0 states 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 05:08:26,853 INFO L185 Difference]: Start difference. First operand has 57 places, 38 transitions, 304 flow. Second operand 5 states and 534 transitions. [2021-03-25 05:08:26,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 42 transitions, 352 flow [2021-03-25 05:08:26,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 42 transitions, 257 flow, removed 12 selfloop flow, removed 11 redundant places. [2021-03-25 05:08:26,855 INFO L241 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2021-03-25 05:08:26,856 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=45, 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=5, PETRI_FLOW=0, PETRI_PLACES=49, PETRI_TRANSITIONS=0} [2021-03-25 05:08:26,856 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 11 predicate places. [2021-03-25 05:08:26,856 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:08:26,856 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 0 transitions, 0 flow [2021-03-25 05:08:26,856 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 0 transitions, 0 flow [2021-03-25 05:08:26,856 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 05:08:26,856 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 05:08:26,856 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:08:26,857 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. [2021-03-25 05:08:26,857 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 05:08:26,857 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 05:08:26,857 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:08:26,857 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-25 05:08:26,857 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 05:08:26,857 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.5) internal successors, (422), 4 states have internal predecessors, (422), 0 states have call successors, (0), 0 states 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 05:08:26,858 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 05:08:26,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 05:08:26 BasicIcfg [2021-03-25 05:08:26,862 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 05:08:26,863 INFO L168 Benchmark]: Toolchain (without parser) took 5507.73 ms. Allocated memory was 341.8 MB in the beginning and 417.3 MB in the end (delta: 75.5 MB). Free memory was 305.0 MB in the beginning and 209.4 MB in the end (delta: 95.6 MB). Peak memory consumption was 174.0 MB. Max. memory is 16.0 GB. [2021-03-25 05:08:26,863 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 341.8 MB. Free memory was 323.3 MB in the beginning and 323.3 MB in the end (delta: 69.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 05:08:26,863 INFO L168 Benchmark]: CACSL2BoogieTranslator took 474.33 ms. Allocated memory is still 341.8 MB. Free memory was 304.8 MB in the beginning and 304.5 MB in the end (delta: 322.5 kB). Peak memory consumption was 9.3 MB. Max. memory is 16.0 GB. [2021-03-25 05:08:26,863 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.63 ms. Allocated memory is still 341.8 MB. Free memory was 304.5 MB in the beginning and 302.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 05:08:26,864 INFO L168 Benchmark]: Boogie Preprocessor took 17.67 ms. Allocated memory is still 341.8 MB. Free memory was 302.3 MB in the beginning and 301.3 MB in the end (delta: 943.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 05:08:26,864 INFO L168 Benchmark]: RCFGBuilder took 349.40 ms. Allocated memory is still 341.8 MB. Free memory was 301.3 MB in the beginning and 276.1 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-25 05:08:26,864 INFO L168 Benchmark]: TraceAbstraction took 4595.62 ms. Allocated memory was 341.8 MB in the beginning and 417.3 MB in the end (delta: 75.5 MB). Free memory was 276.1 MB in the beginning and 209.4 MB in the end (delta: 66.8 MB). Peak memory consumption was 145.4 MB. Max. memory is 16.0 GB. [2021-03-25 05:08:26,869 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 341.8 MB. Free memory was 323.3 MB in the beginning and 323.3 MB in the end (delta: 69.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 474.33 ms. Allocated memory is still 341.8 MB. Free memory was 304.8 MB in the beginning and 304.5 MB in the end (delta: 322.5 kB). Peak memory consumption was 9.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 63.63 ms. Allocated memory is still 341.8 MB. Free memory was 304.5 MB in the beginning and 302.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 17.67 ms. Allocated memory is still 341.8 MB. Free memory was 302.3 MB in the beginning and 301.3 MB in the end (delta: 943.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 349.40 ms. Allocated memory is still 341.8 MB. Free memory was 301.3 MB in the beginning and 276.1 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4595.62 ms. Allocated memory was 341.8 MB in the beginning and 417.3 MB in the end (delta: 75.5 MB). Free memory was 276.1 MB in the beginning and 209.4 MB in the end (delta: 66.8 MB). Peak memory consumption was 145.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1363.5ms, 81 PlacesBefore, 38 PlacesAfterwards, 69 TransitionsBefore, 25 TransitionsAfterwards, 1250 CoEnabledTransitionPairs, 4 FixpointIterations, 15 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 44 TotalNumberOfCompositions, 1387 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 945, positive: 911, positive conditional: 0, positive unconditional: 911, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 621, positive: 601, positive conditional: 0, positive unconditional: 601, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 621, positive: 601, positive conditional: 0, positive unconditional: 601, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 945, positive: 310, positive conditional: 0, positive unconditional: 310, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 621, unknown conditional: 0, unknown unconditional: 621] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 472.5ms, 37 PlacesBefore, 33 PlacesAfterwards, 27 TransitionsBefore, 23 TransitionsAfterwards, 224 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 484 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 95, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 18, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 95, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 18, unknown conditional: 0, unknown unconditional: 18] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 450.0ms, 39 PlacesBefore, 38 PlacesAfterwards, 33 TransitionsBefore, 32 TransitionsAfterwards, 272 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 194 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 10, negative conditional: 0, negative unconditional: 10, 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: 14, positive conditional: 0, positive unconditional: 14, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.9ms, 42 PlacesBefore, 42 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 248 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 85 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 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: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.4ms, 43 PlacesBefore, 43 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 248 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 54 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 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: 7, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.9ms, 46 PlacesBefore, 46 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 130 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 64 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18, positive: 13, positive conditional: 0, positive unconditional: 13, 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: 18, positive: 13, positive conditional: 0, positive unconditional: 13, 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): 48, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 50.0ms, 46 PlacesBefore, 46 PlacesAfterwards, 33 TransitionsBefore, 32 TransitionsAfterwards, 214 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 39 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 27, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 27, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 37, Positive conditional cache size: 0, Positive unconditional cache size: 37, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.7ms, 50 PlacesBefore, 50 PlacesAfterwards, 37 TransitionsBefore, 36 TransitionsAfterwards, 230 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 45 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 30, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 30, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 37, Positive conditional cache size: 0, Positive unconditional cache size: 37, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.4ms, 53 PlacesBefore, 53 PlacesAfterwards, 41 TransitionsBefore, 40 TransitionsAfterwards, 202 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 43 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 28, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 28, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 37, Positive conditional cache size: 0, Positive unconditional cache size: 37, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.2ms, 52 PlacesBefore, 52 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 10 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, 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: 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: 10, positive: 10, positive conditional: 0, positive unconditional: 10, 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): 43, Positive cache size: 35, Positive conditional cache size: 0, Positive unconditional cache size: 35, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 84.5ms, 60 PlacesBefore, 57 PlacesAfterwards, 40 TransitionsBefore, 38 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 6 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 37, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 49 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: 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: 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): 37, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4450.6ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 718.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1480.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 48 SDtfs, 42 SDslu, 30 SDs, 0 SdLazy, 220 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 150.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 153.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=326occurred in iteration=8, InterpolantAutomatonStates: 55, 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: 27.5ms SsaConstructionTime, 187.3ms SatisfiabilityAnalysisTime, 635.1ms InterpolantComputationTime, 168 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 157 ConstructedInterpolants, 0 QuantifiedInterpolants, 873 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...