/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 10:45:36,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 10:45:36,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 10:45:36,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 10:45:36,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 10:45:36,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 10:45:36,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 10:45:36,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 10:45:36,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 10:45:36,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 10:45:36,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 10:45:36,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 10:45:36,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 10:45:36,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 10:45:36,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 10:45:36,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 10:45:36,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 10:45:36,985 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 10:45:36,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 10:45:36,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 10:45:36,988 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 10:45:36,989 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 10:45:36,989 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 10:45:36,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 10:45:36,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 10:45:36,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 10:45:36,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 10:45:36,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 10:45:36,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 10:45:36,996 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 10:45:36,996 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 10:45:36,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 10:45:36,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 10:45:36,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 10:45:36,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 10:45:36,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 10:45:36,998 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 10:45:37,013 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 10:45:37,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 10:45:37,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 10:45:37,014 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 10:45:37,014 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 10:45:37,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 10:45:37,015 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 10:45:37,015 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 10:45:37,015 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 10:45:37,015 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 10:45:37,015 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 10:45:37,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 10:45:37,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 10:45:37,016 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 10:45:37,016 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 10:45:37,016 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 10:45:37,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 10:45:37,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 10:45:37,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 10:45:37,017 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 10:45:37,017 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 10:45:37,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:45:37,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 10:45:37,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 10:45:37,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 10:45:37,018 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 10:45:37,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 10:45:37,018 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 10:45:37,018 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 10:45:37,018 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 10:45:37,018 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 10:45:37,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 10:45:37,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 10:45:37,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 10:45:37,245 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 10:45:37,246 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 10:45:37,247 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.opt.i [2021-03-26 10:45:37,300 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39859fe3e/aeec9413e2c2497187dd6a1d72a8a5c3/FLAG64ee0422c [2021-03-26 10:45:37,706 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 10:45:37,706 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_tso.opt.i [2021-03-26 10:45:37,717 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39859fe3e/aeec9413e2c2497187dd6a1d72a8a5c3/FLAG64ee0422c [2021-03-26 10:45:38,037 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39859fe3e/aeec9413e2c2497187dd6a1d72a8a5c3 [2021-03-26 10:45:38,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 10:45:38,043 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 10:45:38,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 10:45:38,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 10:45:38,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 10:45:38,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:45:38" (1/1) ... [2021-03-26 10:45:38,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5610347f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:45:38, skipping insertion in model container [2021-03-26 10:45:38,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:45:38" (1/1) ... [2021-03-26 10:45:38,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 10:45:38,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 10:45:38,167 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/thin001_tso.opt.i[949,962] [2021-03-26 10:45:38,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:45:38,293 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 10:45:38,313 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/thin001_tso.opt.i[949,962] [2021-03-26 10:45:38,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:45:38,401 INFO L208 MainTranslator]: Completed translation [2021-03-26 10:45:38,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:45:38 WrapperNode [2021-03-26 10:45:38,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 10:45:38,404 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 10:45:38,404 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 10:45:38,404 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 10:45:38,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:45:38" (1/1) ... [2021-03-26 10:45:38,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:45:38" (1/1) ... [2021-03-26 10:45:38,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 10:45:38,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 10:45:38,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 10:45:38,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 10:45:38,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:45:38" (1/1) ... [2021-03-26 10:45:38,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:45:38" (1/1) ... [2021-03-26 10:45:38,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:45:38" (1/1) ... [2021-03-26 10:45:38,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:45:38" (1/1) ... [2021-03-26 10:45:38,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:45:38" (1/1) ... [2021-03-26 10:45:38,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:45:38" (1/1) ... [2021-03-26 10:45:38,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:45:38" (1/1) ... [2021-03-26 10:45:38,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 10:45:38,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 10:45:38,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 10:45:38,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 10:45:38,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:45:38" (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 [2021-03-26 10:45:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 10:45:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 10:45:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 10:45:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 10:45:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 10:45:38,511 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 10:45:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 10:45:38,511 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 10:45:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 10:45:38,511 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 10:45:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 10:45:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 10:45:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 10:45:38,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 10:45:38,513 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 10:45:38,782 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 10:45:38,782 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 10:45:38,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:45:38 BoogieIcfgContainer [2021-03-26 10:45:38,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 10:45:38,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 10:45:38,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 10:45:38,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 10:45:38,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 10:45:38" (1/3) ... [2021-03-26 10:45:38,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b04e685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:45:38, skipping insertion in model container [2021-03-26 10:45:38,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:45:38" (2/3) ... [2021-03-26 10:45:38,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b04e685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:45:38, skipping insertion in model container [2021-03-26 10:45:38,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:45:38" (3/3) ... [2021-03-26 10:45:38,788 INFO L111 eAbstractionObserver]: Analyzing ICFG thin001_tso.opt.i [2021-03-26 10:45:38,791 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 10:45:38,794 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 10:45:38,794 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 10:45:38,812 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,813 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,813 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,813 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,813 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,813 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,813 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,813 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,814 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,814 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,814 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,814 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,814 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,814 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,814 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,814 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,814 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,815 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,815 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,815 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,815 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,815 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,815 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,815 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,815 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,815 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,816 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,816 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,816 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,816 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,816 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,816 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,816 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,816 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,816 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,817 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,818 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,818 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,818 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,818 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,821 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,821 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,823 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,823 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,823 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,823 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:45:38,824 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:45:38,835 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 10:45:38,847 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:45:38,847 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:45:38,847 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:45:38,847 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:45:38,847 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:45:38,847 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:45:38,847 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:45:38,847 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:45:38,853 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 76 transitions, 167 flow [2021-03-26 10:45:38,873 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2021-03-26 10:45:38,873 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:45:38,875 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-26 10:45:38,876 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 76 transitions, 167 flow [2021-03-26 10:45:38,878 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 61 transitions, 131 flow [2021-03-26 10:45:38,879 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:45:38,887 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 61 transitions, 131 flow [2021-03-26 10:45:38,889 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 61 transitions, 131 flow [2021-03-26 10:45:38,890 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 61 transitions, 131 flow [2021-03-26 10:45:38,899 INFO L129 PetriNetUnfolder]: 1/61 cut-off events. [2021-03-26 10:45:38,899 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:45:38,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 61 events. 1/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-26 10:45:38,901 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-26 10:45:40,540 INFO L154 LiptonReduction]: Checked pairs total: 942 [2021-03-26 10:45:40,542 INFO L156 LiptonReduction]: Total number of compositions: 40 [2021-03-26 10:45:40,544 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1666 [2021-03-26 10:45:40,550 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-03-26 10:45:40,551 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:45:40,551 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:45:40,551 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:45:40,551 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:45:40,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:45:40,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1196691833, now seen corresponding path program 1 times [2021-03-26 10:45:40,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:45:40,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368884620] [2021-03-26 10:45:40,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:45:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:45:40,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:45:40,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:45:40,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:45:40,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368884620] [2021-03-26 10:45:40,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:45:40,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 10:45:40,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663131363] [2021-03-26 10:45:40,715 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:45:40,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:45:40,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:45:40,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:45:40,726 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 116 [2021-03-26 10:45:40,729 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:40,731 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:45:40,731 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 116 [2021-03-26 10:45:40,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:45:40,749 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-26 10:45:40,753 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:45:40,753 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 21 events. 0/21 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 10:45:40,755 INFO L132 encePairwiseOnDemand]: 113/116 looper letters, 1 selfloop transitions, 2 changer transitions 0/21 dead transitions. [2021-03-26 10:45:40,755 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 21 transitions, 57 flow [2021-03-26 10:45:40,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:45:40,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:45:40,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 310 transitions. [2021-03-26 10:45:40,766 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8908045977011494 [2021-03-26 10:45:40,767 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 310 transitions. [2021-03-26 10:45:40,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 310 transitions. [2021-03-26 10:45:40,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:45:40,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 310 transitions. [2021-03-26 10:45:40,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:40,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:40,781 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:40,782 INFO L185 Difference]: Start difference. First operand has 31 places, 21 transitions, 51 flow. Second operand 3 states and 310 transitions. [2021-03-26 10:45:40,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 21 transitions, 57 flow [2021-03-26 10:45:40,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 21 transitions, 54 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 10:45:40,785 INFO L241 Difference]: Finished difference. Result has 31 places, 21 transitions, 56 flow [2021-03-26 10:45:40,786 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=31, PETRI_TRANSITIONS=21} [2021-03-26 10:45:40,787 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 0 predicate places. [2021-03-26 10:45:40,787 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:45:40,787 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 21 transitions, 56 flow [2021-03-26 10:45:40,788 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 21 transitions, 56 flow [2021-03-26 10:45:40,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 21 transitions, 56 flow [2021-03-26 10:45:40,795 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-26 10:45:40,795 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:45:40,796 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 21 events. 0/21 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 10:45:40,796 INFO L142 LiptonReduction]: Number of co-enabled transitions 160 [2021-03-26 10:45:41,251 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-03-26 10:45:41,409 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-03-26 10:45:41,470 INFO L154 LiptonReduction]: Checked pairs total: 437 [2021-03-26 10:45:41,471 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 10:45:41,471 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 684 [2021-03-26 10:45:41,472 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 17 transitions, 48 flow [2021-03-26 10:45:41,472 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:41,472 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:45:41,472 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:45:41,472 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 10:45:41,472 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:45:41,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:45:41,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1552337805, now seen corresponding path program 1 times [2021-03-26 10:45:41,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:45:41,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247401080] [2021-03-26 10:45:41,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:45:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:45:41,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:45:41,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:45:41,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:45:41,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:45:41,527 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 10:45:41,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:45:41,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:45:41,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247401080] [2021-03-26 10:45:41,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:45:41,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:45:41,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636901733] [2021-03-26 10:45:41,534 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:45:41,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:45:41,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:45:41,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:45:41,535 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 120 [2021-03-26 10:45:41,535 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:41,535 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:45:41,535 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 120 [2021-03-26 10:45:41,535 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:45:41,562 INFO L129 PetriNetUnfolder]: 14/64 cut-off events. [2021-03-26 10:45:41,562 INFO L130 PetriNetUnfolder]: For 14/20 co-relation queries the response was YES. [2021-03-26 10:45:41,562 INFO L84 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 64 events. 14/64 cut-off events. For 14/20 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 252 event pairs, 1 based on Foata normal form. 8/70 useless extension candidates. Maximal degree in co-relation 118. Up to 15 conditions per place. [2021-03-26 10:45:41,563 INFO L132 encePairwiseOnDemand]: 114/120 looper letters, 7 selfloop transitions, 7 changer transitions 0/25 dead transitions. [2021-03-26 10:45:41,563 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 25 transitions, 100 flow [2021-03-26 10:45:41,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:45:41,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:45:41,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 471 transitions. [2021-03-26 10:45:41,565 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.785 [2021-03-26 10:45:41,565 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 471 transitions. [2021-03-26 10:45:41,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 471 transitions. [2021-03-26 10:45:41,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:45:41,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 471 transitions. [2021-03-26 10:45:41,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.2) internal successors, (471), 5 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:41,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:41,568 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:41,568 INFO L185 Difference]: Start difference. First operand has 27 places, 17 transitions, 48 flow. Second operand 5 states and 471 transitions. [2021-03-26 10:45:41,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 25 transitions, 100 flow [2021-03-26 10:45:41,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 25 transitions, 92 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:45:41,569 INFO L241 Difference]: Finished difference. Result has 32 places, 22 transitions, 92 flow [2021-03-26 10:45:41,569 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=92, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2021-03-26 10:45:41,570 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 1 predicate places. [2021-03-26 10:45:41,570 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:45:41,570 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 22 transitions, 92 flow [2021-03-26 10:45:41,570 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 22 transitions, 92 flow [2021-03-26 10:45:41,570 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 22 transitions, 92 flow [2021-03-26 10:45:41,575 INFO L129 PetriNetUnfolder]: 8/54 cut-off events. [2021-03-26 10:45:41,575 INFO L130 PetriNetUnfolder]: For 20/26 co-relation queries the response was YES. [2021-03-26 10:45:41,575 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 54 events. 8/54 cut-off events. For 20/26 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 213 event pairs, 2 based on Foata normal form. 1/52 useless extension candidates. Maximal degree in co-relation 111. Up to 18 conditions per place. [2021-03-26 10:45:41,578 INFO L142 LiptonReduction]: Number of co-enabled transitions 162 [2021-03-26 10:45:41,580 INFO L154 LiptonReduction]: Checked pairs total: 108 [2021-03-26 10:45:41,580 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:45:41,580 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-26 10:45:41,581 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 92 flow [2021-03-26 10:45:41,581 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:41,581 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:45:41,581 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:45:41,581 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 10:45:41,582 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:45:41,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:45:41,582 INFO L82 PathProgramCache]: Analyzing trace with hash 355545513, now seen corresponding path program 1 times [2021-03-26 10:45:41,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:45:41,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750473169] [2021-03-26 10:45:41,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:45:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:45:41,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:45:41,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:45:41,638 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 10:45:41,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:45:41,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:45:41,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750473169] [2021-03-26 10:45:41,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:45:41,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:45:41,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792418945] [2021-03-26 10:45:41,644 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:45:41,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:45:41,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:45:41,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:45:41,645 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 120 [2021-03-26 10:45:41,645 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:41,645 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:45:41,645 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 120 [2021-03-26 10:45:41,645 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:45:41,661 INFO L129 PetriNetUnfolder]: 8/51 cut-off events. [2021-03-26 10:45:41,662 INFO L130 PetriNetUnfolder]: For 36/59 co-relation queries the response was YES. [2021-03-26 10:45:41,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 51 events. 8/51 cut-off events. For 36/59 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 197 event pairs, 0 based on Foata normal form. 4/54 useless extension candidates. Maximal degree in co-relation 128. Up to 17 conditions per place. [2021-03-26 10:45:41,662 INFO L132 encePairwiseOnDemand]: 117/120 looper letters, 9 selfloop transitions, 3 changer transitions 0/25 dead transitions. [2021-03-26 10:45:41,662 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 25 transitions, 134 flow [2021-03-26 10:45:41,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:45:41,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:45:41,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2021-03-26 10:45:41,663 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8222222222222222 [2021-03-26 10:45:41,664 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 296 transitions. [2021-03-26 10:45:41,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 296 transitions. [2021-03-26 10:45:41,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:45:41,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 296 transitions. [2021-03-26 10:45:41,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:41,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:41,665 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:41,665 INFO L185 Difference]: Start difference. First operand has 32 places, 22 transitions, 92 flow. Second operand 3 states and 296 transitions. [2021-03-26 10:45:41,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 25 transitions, 134 flow [2021-03-26 10:45:41,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 25 transitions, 131 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:45:41,667 INFO L241 Difference]: Finished difference. Result has 34 places, 22 transitions, 100 flow [2021-03-26 10:45:41,667 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=34, PETRI_TRANSITIONS=22} [2021-03-26 10:45:41,667 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 3 predicate places. [2021-03-26 10:45:41,667 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:45:41,667 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 22 transitions, 100 flow [2021-03-26 10:45:41,667 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 22 transitions, 100 flow [2021-03-26 10:45:41,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 22 transitions, 100 flow [2021-03-26 10:45:41,672 INFO L129 PetriNetUnfolder]: 8/55 cut-off events. [2021-03-26 10:45:41,672 INFO L130 PetriNetUnfolder]: For 33/38 co-relation queries the response was YES. [2021-03-26 10:45:41,672 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 55 events. 8/55 cut-off events. For 33/38 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 229 event pairs, 2 based on Foata normal form. 1/54 useless extension candidates. Maximal degree in co-relation 123. Up to 17 conditions per place. [2021-03-26 10:45:41,672 INFO L142 LiptonReduction]: Number of co-enabled transitions 162 [2021-03-26 10:45:41,674 INFO L154 LiptonReduction]: Checked pairs total: 119 [2021-03-26 10:45:41,674 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:45:41,674 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-26 10:45:41,674 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 22 transitions, 100 flow [2021-03-26 10:45:41,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:41,675 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:45:41,675 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:45:41,675 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 10:45:41,675 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:45:41,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:45:41,679 INFO L82 PathProgramCache]: Analyzing trace with hash 355535903, now seen corresponding path program 1 times [2021-03-26 10:45:41,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:45:41,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066886028] [2021-03-26 10:45:41,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:45:41,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:45:41,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:45:41,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:45:41,723 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 10:45:41,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:45:41,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:45:41,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066886028] [2021-03-26 10:45:41,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:45:41,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:45:41,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767850630] [2021-03-26 10:45:41,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:45:41,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:45:41,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:45:41,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:45:41,730 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 120 [2021-03-26 10:45:41,730 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 22 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:41,730 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:45:41,730 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 120 [2021-03-26 10:45:41,730 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:45:41,769 INFO L129 PetriNetUnfolder]: 19/92 cut-off events. [2021-03-26 10:45:41,769 INFO L130 PetriNetUnfolder]: For 110/171 co-relation queries the response was YES. [2021-03-26 10:45:41,770 INFO L84 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 92 events. 19/92 cut-off events. For 110/171 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 440 event pairs, 0 based on Foata normal form. 11/100 useless extension candidates. Maximal degree in co-relation 248. Up to 24 conditions per place. [2021-03-26 10:45:41,770 INFO L132 encePairwiseOnDemand]: 114/120 looper letters, 12 selfloop transitions, 10 changer transitions 1/35 dead transitions. [2021-03-26 10:45:41,770 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 35 transitions, 231 flow [2021-03-26 10:45:41,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:45:41,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:45:41,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 471 transitions. [2021-03-26 10:45:41,773 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.785 [2021-03-26 10:45:41,773 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 471 transitions. [2021-03-26 10:45:41,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 471 transitions. [2021-03-26 10:45:41,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:45:41,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 471 transitions. [2021-03-26 10:45:41,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.2) internal successors, (471), 5 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:41,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:41,776 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:41,776 INFO L185 Difference]: Start difference. First operand has 34 places, 22 transitions, 100 flow. Second operand 5 states and 471 transitions. [2021-03-26 10:45:41,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 35 transitions, 231 flow [2021-03-26 10:45:41,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 35 transitions, 219 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:45:41,779 INFO L241 Difference]: Finished difference. Result has 39 places, 30 transitions, 194 flow [2021-03-26 10:45:41,779 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=194, PETRI_PLACES=39, PETRI_TRANSITIONS=30} [2021-03-26 10:45:41,779 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 8 predicate places. [2021-03-26 10:45:41,779 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:45:41,779 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 30 transitions, 194 flow [2021-03-26 10:45:41,779 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 30 transitions, 194 flow [2021-03-26 10:45:41,780 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 30 transitions, 194 flow [2021-03-26 10:45:41,784 INFO L129 PetriNetUnfolder]: 11/71 cut-off events. [2021-03-26 10:45:41,785 INFO L130 PetriNetUnfolder]: For 98/137 co-relation queries the response was YES. [2021-03-26 10:45:41,785 INFO L84 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 71 events. 11/71 cut-off events. For 98/137 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 339 event pairs, 1 based on Foata normal form. 2/70 useless extension candidates. Maximal degree in co-relation 210. Up to 21 conditions per place. [2021-03-26 10:45:41,785 INFO L142 LiptonReduction]: Number of co-enabled transitions 208 [2021-03-26 10:45:41,787 INFO L154 LiptonReduction]: Checked pairs total: 142 [2021-03-26 10:45:41,787 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:45:41,787 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 10:45:41,788 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 30 transitions, 194 flow [2021-03-26 10:45:41,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:41,788 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:45:41,788 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:45:41,788 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 10:45:41,788 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:45:41,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:45:41,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1844853317, now seen corresponding path program 1 times [2021-03-26 10:45:41,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:45:41,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891537441] [2021-03-26 10:45:41,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:45:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:45:41,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:45:41,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:45:41,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:45:41,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:45:41,816 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 10:45:41,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:45:41,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:45:41,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891537441] [2021-03-26 10:45:41,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:45:41,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:45:41,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065481296] [2021-03-26 10:45:41,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:45:41,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:45:41,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:45:41,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:45:41,823 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 120 [2021-03-26 10:45:41,823 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 30 transitions, 194 flow. Second operand has 5 states, 5 states have (on average 91.8) internal successors, (459), 5 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:41,823 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:45:41,823 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 120 [2021-03-26 10:45:41,823 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:45:41,840 INFO L129 PetriNetUnfolder]: 13/91 cut-off events. [2021-03-26 10:45:41,840 INFO L130 PetriNetUnfolder]: For 249/350 co-relation queries the response was YES. [2021-03-26 10:45:41,841 INFO L84 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 91 events. 13/91 cut-off events. For 249/350 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 489 event pairs, 0 based on Foata normal form. 10/98 useless extension candidates. Maximal degree in co-relation 293. Up to 24 conditions per place. [2021-03-26 10:45:41,841 INFO L132 encePairwiseOnDemand]: 116/120 looper letters, 7 selfloop transitions, 4 changer transitions 13/35 dead transitions. [2021-03-26 10:45:41,841 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 35 transitions, 289 flow [2021-03-26 10:45:41,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:45:41,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:45:41,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 375 transitions. [2021-03-26 10:45:41,842 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.78125 [2021-03-26 10:45:41,842 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 375 transitions. [2021-03-26 10:45:41,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 375 transitions. [2021-03-26 10:45:41,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:45:41,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 375 transitions. [2021-03-26 10:45:41,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:41,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:41,844 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:41,844 INFO L185 Difference]: Start difference. First operand has 39 places, 30 transitions, 194 flow. Second operand 4 states and 375 transitions. [2021-03-26 10:45:41,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 35 transitions, 289 flow [2021-03-26 10:45:41,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 35 transitions, 284 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 10:45:41,846 INFO L241 Difference]: Finished difference. Result has 43 places, 21 transitions, 136 flow [2021-03-26 10:45:41,846 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=136, PETRI_PLACES=43, PETRI_TRANSITIONS=21} [2021-03-26 10:45:41,846 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 12 predicate places. [2021-03-26 10:45:41,846 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:45:41,846 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 21 transitions, 136 flow [2021-03-26 10:45:41,847 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 21 transitions, 136 flow [2021-03-26 10:45:41,847 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 21 transitions, 136 flow [2021-03-26 10:45:41,849 INFO L129 PetriNetUnfolder]: 2/33 cut-off events. [2021-03-26 10:45:41,849 INFO L130 PetriNetUnfolder]: For 67/72 co-relation queries the response was YES. [2021-03-26 10:45:41,849 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 33 events. 2/33 cut-off events. For 67/72 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 85 event pairs, 0 based on Foata normal form. 2/35 useless extension candidates. Maximal degree in co-relation 100. Up to 9 conditions per place. [2021-03-26 10:45:41,850 INFO L142 LiptonReduction]: Number of co-enabled transitions 116 [2021-03-26 10:45:41,923 INFO L154 LiptonReduction]: Checked pairs total: 228 [2021-03-26 10:45:41,923 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 10:45:41,923 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 77 [2021-03-26 10:45:41,924 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 19 transitions, 136 flow [2021-03-26 10:45:41,924 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 91.8) internal successors, (459), 5 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:41,924 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:45:41,924 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:45:41,924 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 10:45:41,924 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:45:41,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:45:41,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1638219645, now seen corresponding path program 1 times [2021-03-26 10:45:41,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:45:41,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78811686] [2021-03-26 10:45:41,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:45:41,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:45:41,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:45:41,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:45:41,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:45:41,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:45:41,965 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 10:45:41,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:45:41,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:45:41,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78811686] [2021-03-26 10:45:41,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:45:41,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:45:41,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975968415] [2021-03-26 10:45:41,971 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:45:41,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:45:41,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:45:41,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:45:41,972 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 124 [2021-03-26 10:45:41,972 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 19 transitions, 136 flow. Second operand has 5 states, 5 states have (on average 92.0) internal successors, (460), 5 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:41,973 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:45:41,973 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 124 [2021-03-26 10:45:41,973 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:45:41,989 INFO L129 PetriNetUnfolder]: 1/26 cut-off events. [2021-03-26 10:45:41,989 INFO L130 PetriNetUnfolder]: For 99/121 co-relation queries the response was YES. [2021-03-26 10:45:41,990 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 26 events. 1/26 cut-off events. For 99/121 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 58 event pairs, 0 based on Foata normal form. 5/31 useless extension candidates. Maximal degree in co-relation 88. Up to 7 conditions per place. [2021-03-26 10:45:41,990 INFO L132 encePairwiseOnDemand]: 119/124 looper letters, 2 selfloop transitions, 3 changer transitions 4/19 dead transitions. [2021-03-26 10:45:41,990 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 19 transitions, 154 flow [2021-03-26 10:45:41,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:45:41,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:45:41,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 373 transitions. [2021-03-26 10:45:41,992 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7520161290322581 [2021-03-26 10:45:41,992 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 373 transitions. [2021-03-26 10:45:41,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 373 transitions. [2021-03-26 10:45:41,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:45:41,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 373 transitions. [2021-03-26 10:45:41,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:41,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:41,994 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:41,994 INFO L185 Difference]: Start difference. First operand has 39 places, 19 transitions, 136 flow. Second operand 4 states and 373 transitions. [2021-03-26 10:45:41,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 19 transitions, 154 flow [2021-03-26 10:45:41,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 19 transitions, 106 flow, removed 14 selfloop flow, removed 8 redundant places. [2021-03-26 10:45:41,996 INFO L241 Difference]: Finished difference. Result has 35 places, 15 transitions, 72 flow [2021-03-26 10:45:41,996 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=72, PETRI_PLACES=35, PETRI_TRANSITIONS=15} [2021-03-26 10:45:41,996 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2021-03-26 10:45:41,996 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:45:41,996 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 15 transitions, 72 flow [2021-03-26 10:45:41,996 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 15 transitions, 72 flow [2021-03-26 10:45:41,996 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 15 transitions, 72 flow [2021-03-26 10:45:41,998 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-03-26 10:45:41,998 INFO L130 PetriNetUnfolder]: For 13/14 co-relation queries the response was YES. [2021-03-26 10:45:41,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 15 events. 0/15 cut-off events. For 13/14 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-26 10:45:41,998 INFO L142 LiptonReduction]: Number of co-enabled transitions 62 [2021-03-26 10:45:42,025 INFO L154 LiptonReduction]: Checked pairs total: 57 [2021-03-26 10:45:42,025 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:45:42,025 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-03-26 10:45:42,026 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 14 transitions, 70 flow [2021-03-26 10:45:42,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 92.0) internal successors, (460), 5 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:42,027 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:45:42,027 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:45:42,027 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 10:45:42,027 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:45:42,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:45:42,027 INFO L82 PathProgramCache]: Analyzing trace with hash 870394136, now seen corresponding path program 1 times [2021-03-26 10:45:42,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:45:42,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212633364] [2021-03-26 10:45:42,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:45:42,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:45:42,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:45:42,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:45:42,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:45:42,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:45:42,082 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 10:45:42,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:45:42,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:45:42,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212633364] [2021-03-26 10:45:42,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:45:42,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:45:42,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57499060] [2021-03-26 10:45:42,088 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:45:42,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:45:42,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:45:42,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:45:42,088 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 125 [2021-03-26 10:45:42,090 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 14 transitions, 70 flow. Second operand has 5 states, 5 states have (on average 92.0) internal successors, (460), 5 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:42,090 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:45:42,090 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 125 [2021-03-26 10:45:42,090 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:45:42,099 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2021-03-26 10:45:42,099 INFO L130 PetriNetUnfolder]: For 34/40 co-relation queries the response was YES. [2021-03-26 10:45:42,100 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 13 events. 0/13 cut-off events. For 34/40 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 9 event pairs, 0 based on Foata normal form. 2/15 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-26 10:45:42,100 INFO L132 encePairwiseOnDemand]: 122/125 looper letters, 0 selfloop transitions, 0 changer transitions 13/13 dead transitions. [2021-03-26 10:45:42,100 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 13 transitions, 70 flow [2021-03-26 10:45:42,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:45:42,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:45:42,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2021-03-26 10:45:42,101 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.742 [2021-03-26 10:45:42,101 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 371 transitions. [2021-03-26 10:45:42,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 371 transitions. [2021-03-26 10:45:42,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:45:42,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 371 transitions. [2021-03-26 10:45:42,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:42,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:42,102 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:42,102 INFO L185 Difference]: Start difference. First operand has 33 places, 14 transitions, 70 flow. Second operand 4 states and 371 transitions. [2021-03-26 10:45:42,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 13 transitions, 70 flow [2021-03-26 10:45:42,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 13 transitions, 46 flow, removed 2 selfloop flow, removed 10 redundant places. [2021-03-26 10:45:42,104 INFO L241 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2021-03-26 10:45:42,104 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2021-03-26 10:45:42,104 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, -6 predicate places. [2021-03-26 10:45:42,104 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:45:42,104 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 0 transitions, 0 flow [2021-03-26 10:45:42,104 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 0 transitions, 0 flow [2021-03-26 10:45:42,105 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 10:45:42,105 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 10:45:42,105 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:45:42,105 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. [2021-03-26 10:45:42,105 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 10:45:42,105 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:45:42,105 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:45:42,105 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 10:45:42,107 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 10:45:42,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 92.0) internal successors, (460), 5 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:45:42,108 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 10:45:42,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 10:45:42 BasicIcfg [2021-03-26 10:45:42,111 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 10:45:42,115 INFO L168 Benchmark]: Toolchain (without parser) took 4068.21 ms. Allocated memory was 255.9 MB in the beginning and 425.7 MB in the end (delta: 169.9 MB). Free memory was 236.2 MB in the beginning and 386.6 MB in the end (delta: -150.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.0 GB. [2021-03-26 10:45:42,115 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory was 238.0 MB in the beginning and 237.8 MB in the end (delta: 176.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:45:42,115 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.16 ms. Allocated memory was 255.9 MB in the beginning and 354.4 MB in the end (delta: 98.6 MB). Free memory was 235.5 MB in the beginning and 319.1 MB in the end (delta: -83.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-26 10:45:42,115 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.29 ms. Allocated memory is still 354.4 MB. Free memory was 319.1 MB in the beginning and 317.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:45:42,116 INFO L168 Benchmark]: Boogie Preprocessor took 12.51 ms. Allocated memory is still 354.4 MB. Free memory was 317.1 MB in the beginning and 316.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:45:42,116 INFO L168 Benchmark]: RCFGBuilder took 327.40 ms. Allocated memory is still 354.4 MB. Free memory was 316.0 MB in the beginning and 334.4 MB in the end (delta: -18.4 MB). Peak memory consumption was 23.9 MB. Max. memory is 16.0 GB. [2021-03-26 10:45:42,116 INFO L168 Benchmark]: TraceAbstraction took 3326.44 ms. Allocated memory was 354.4 MB in the beginning and 425.7 MB in the end (delta: 71.3 MB). Free memory was 334.1 MB in the beginning and 386.6 MB in the end (delta: -52.5 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.0 GB. [2021-03-26 10:45:42,120 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory was 238.0 MB in the beginning and 237.8 MB in the end (delta: 176.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 359.16 ms. Allocated memory was 255.9 MB in the beginning and 354.4 MB in the end (delta: 98.6 MB). Free memory was 235.5 MB in the beginning and 319.1 MB in the end (delta: -83.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 39.29 ms. Allocated memory is still 354.4 MB. Free memory was 319.1 MB in the beginning and 317.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.51 ms. Allocated memory is still 354.4 MB. Free memory was 317.1 MB in the beginning and 316.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 327.40 ms. Allocated memory is still 354.4 MB. Free memory was 316.0 MB in the beginning and 334.4 MB in the end (delta: -18.4 MB). Peak memory consumption was 23.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3326.44 ms. Allocated memory was 354.4 MB in the beginning and 425.7 MB in the end (delta: 71.3 MB). Free memory was 334.1 MB in the beginning and 386.6 MB in the end (delta: -52.5 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1653.6ms, 70 PlacesBefore, 31 PlacesAfterwards, 61 TransitionsBefore, 21 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 40 TotalNumberOfCompositions, 942 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 648, positive: 614, positive conditional: 614, positive unconditional: 0, negative: 34, negative conditional: 34, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 648, positive: 614, positive conditional: 0, positive unconditional: 614, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 648, positive: 614, positive conditional: 0, positive unconditional: 614, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 497, positive: 481, positive conditional: 0, positive unconditional: 481, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 497, positive: 475, positive conditional: 0, positive unconditional: 475, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 22, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 90, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 68, negative conditional: 0, negative unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 648, positive: 133, positive conditional: 0, positive unconditional: 133, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 497, unknown conditional: 0, unknown unconditional: 497] , Statistics on independence cache: Total cache size (in pairs): 497, Positive cache size: 481, Positive conditional cache size: 0, Positive unconditional cache size: 481, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 682.9ms, 31 PlacesBefore, 27 PlacesAfterwards, 21 TransitionsBefore, 17 TransitionsAfterwards, 160 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 437 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 209, positive: 169, positive conditional: 169, positive unconditional: 0, negative: 40, negative conditional: 40, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 209, positive: 169, positive conditional: 0, positive unconditional: 169, negative: 40, negative conditional: 4, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 209, positive: 169, positive conditional: 0, positive unconditional: 169, negative: 40, negative conditional: 4, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 71, positive: 60, positive conditional: 0, positive unconditional: 60, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 71, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 17, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 54, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 35, negative conditional: 5, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 209, positive: 109, positive conditional: 0, positive unconditional: 109, negative: 29, negative conditional: 3, negative unconditional: 26, unknown: 71, unknown conditional: 1, unknown unconditional: 70] , Statistics on independence cache: Total cache size (in pairs): 568, Positive cache size: 541, Positive conditional cache size: 0, Positive unconditional cache size: 541, Negative cache size: 27, Negative conditional cache size: 1, Negative unconditional cache size: 26, Eliminated conditions: 24 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.3ms, 32 PlacesBefore, 32 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 162 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 108 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 21, positive: 13, positive conditional: 1, positive unconditional: 12, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 21, positive: 13, positive conditional: 1, positive unconditional: 12, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 21, positive: 10, positive conditional: 1, positive unconditional: 9, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 571, Positive cache size: 544, Positive conditional cache size: 0, Positive unconditional cache size: 544, Negative cache size: 27, Negative conditional cache size: 1, Negative unconditional cache size: 26, Eliminated conditions: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.4ms, 34 PlacesBefore, 34 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 162 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 119 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 66, positive: 57, positive conditional: 57, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 66, positive: 57, positive conditional: 4, positive unconditional: 53, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 66, positive: 57, positive conditional: 4, positive unconditional: 53, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 66, positive: 57, positive conditional: 4, positive unconditional: 53, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 571, Positive cache size: 544, Positive conditional cache size: 0, Positive unconditional cache size: 544, Negative cache size: 27, Negative conditional cache size: 1, Negative unconditional cache size: 26, Eliminated conditions: 13 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.7ms, 39 PlacesBefore, 39 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 208 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 142 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 44, positive: 35, positive conditional: 35, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 44, positive: 35, positive conditional: 1, positive unconditional: 34, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 44, positive: 35, positive conditional: 1, positive unconditional: 34, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 44, positive: 32, positive conditional: 1, positive unconditional: 31, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 574, Positive cache size: 547, Positive conditional cache size: 0, Positive unconditional cache size: 547, Negative cache size: 27, Negative conditional cache size: 1, Negative unconditional cache size: 26, Eliminated conditions: 24 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 76.3ms, 43 PlacesBefore, 39 PlacesAfterwards, 21 TransitionsBefore, 19 TransitionsAfterwards, 116 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 228 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 95, positive: 73, positive conditional: 73, positive unconditional: 0, negative: 22, negative conditional: 22, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 101, positive: 73, positive conditional: 0, positive unconditional: 73, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 101, positive: 73, positive conditional: 0, positive unconditional: 73, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 101, positive: 64, positive conditional: 0, positive unconditional: 64, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 11, unknown conditional: 0, unknown unconditional: 11] , Statistics on independence cache: Total cache size (in pairs): 585, Positive cache size: 556, Positive conditional cache size: 0, Positive unconditional cache size: 556, Negative cache size: 29, Negative conditional cache size: 1, Negative unconditional cache size: 28, Eliminated conditions: 63 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.2ms, 35 PlacesBefore, 33 PlacesAfterwards, 15 TransitionsBefore, 14 TransitionsAfterwards, 62 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 57 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23, positive: 16, positive conditional: 16, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 23, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 23, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 23, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 587, Positive cache size: 557, Positive conditional cache size: 0, Positive unconditional cache size: 557, Negative cache size: 30, Negative conditional cache size: 1, Negative unconditional cache size: 29, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 25 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: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 587, Positive cache size: 557, Positive conditional cache size: 0, Positive unconditional cache size: 557, Negative cache size: 30, Negative conditional cache size: 1, Negative unconditional cache size: 29, Eliminated conditions: 0 - 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 4 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3264.4ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 238.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1700.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 37 SDtfs, 31 SDslu, 14 SDs, 0 SdLazy, 43 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 37.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 65.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=194occurred in iteration=4, InterpolantAutomatonStates: 28, 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: 10.4ms SsaConstructionTime, 99.1ms SatisfiabilityAnalysisTime, 279.7ms InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 354 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...