/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 23:50:51,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 23:50:51,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 23:50:51,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 23:50:51,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 23:50:51,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 23:50:51,796 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 23:50:51,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 23:50:51,809 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 23:50:51,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 23:50:51,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 23:50:51,818 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 23:50:51,819 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 23:50:51,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 23:50:51,824 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 23:50:51,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 23:50:51,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 23:50:51,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 23:50:51,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 23:50:51,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 23:50:51,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 23:50:51,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 23:50:51,857 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 23:50:51,860 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 23:50:51,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 23:50:51,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 23:50:51,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 23:50:51,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 23:50:51,880 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 23:50:51,881 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 23:50:51,881 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 23:50:51,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 23:50:51,883 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 23:50:51,883 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 23:50:51,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 23:50:51,885 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 23:50:51,891 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 23:50:51,946 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 23:50:51,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 23:50:51,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 23:50:51,949 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 23:50:51,949 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 23:50:51,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 23:50:51,950 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 23:50:51,950 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 23:50:51,950 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 23:50:51,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 23:50:51,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 23:50:51,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 23:50:51,951 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 23:50:51,952 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 23:50:51,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 23:50:51,952 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 23:50:51,952 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 23:50:51,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 23:50:51,953 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 23:50:51,953 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 23:50:51,953 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 23:50:51,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:50:51,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 23:50:51,954 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 23:50:51,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 23:50:51,955 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 23:50:51,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 23:50:51,955 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 23:50:51,955 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 23:50:51,956 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 23:50:51,956 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 23:50:52,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 23:50:52,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 23:50:52,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 23:50:52,406 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 23:50:52,407 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 23:50:52,408 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2021-04-28 23:50:52,497 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1d31a057/c238c375c73d4e8c854f0bd7b565701f/FLAG33c2b2f25 [2021-04-28 23:50:53,240 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 23:50:53,240 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2021-04-28 23:50:53,260 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1d31a057/c238c375c73d4e8c854f0bd7b565701f/FLAG33c2b2f25 [2021-04-28 23:50:53,535 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1d31a057/c238c375c73d4e8c854f0bd7b565701f [2021-04-28 23:50:53,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 23:50:53,602 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 23:50:53,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 23:50:53,607 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 23:50:53,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 23:50:53,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:50:53" (1/1) ... [2021-04-28 23:50:53,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e4fcbb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:50:53, skipping insertion in model container [2021-04-28 23:50:53,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:50:53" (1/1) ... [2021-04-28 23:50:53,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 23:50:53,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 23:50:53,970 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/safe013_tso.oepc.i[950,963] [2021-04-28 23:50:54,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:50:54,209 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 23:50:54,225 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/safe013_tso.oepc.i[950,963] [2021-04-28 23:50:54,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:50:54,437 INFO L208 MainTranslator]: Completed translation [2021-04-28 23:50:54,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:50:54 WrapperNode [2021-04-28 23:50:54,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 23:50:54,445 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 23:50:54,446 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 23:50:54,446 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 23:50:54,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:50:54" (1/1) ... [2021-04-28 23:50:54,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:50:54" (1/1) ... [2021-04-28 23:50:54,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 23:50:54,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 23:50:54,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 23:50:54,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 23:50:54,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:50:54" (1/1) ... [2021-04-28 23:50:54,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:50:54" (1/1) ... [2021-04-28 23:50:54,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:50:54" (1/1) ... [2021-04-28 23:50:54,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:50:54" (1/1) ... [2021-04-28 23:50:54,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:50:54" (1/1) ... [2021-04-28 23:50:54,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:50:54" (1/1) ... [2021-04-28 23:50:54,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:50:54" (1/1) ... [2021-04-28 23:50:54,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 23:50:54,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 23:50:54,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 23:50:54,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 23:50:54,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:50:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:50:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 23:50:54,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 23:50:54,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 23:50:54,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 23:50:54,665 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 23:50:54,665 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 23:50:54,666 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 23:50:54,666 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 23:50:54,666 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 23:50:54,666 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 23:50:54,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 23:50:54,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 23:50:54,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 23:50:54,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 23:50:54,669 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 23:50:55,198 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 23:50:55,199 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-28 23:50:55,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:50:55 BoogieIcfgContainer [2021-04-28 23:50:55,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 23:50:55,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 23:50:55,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 23:50:55,208 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 23:50:55,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 11:50:53" (1/3) ... [2021-04-28 23:50:55,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d0ec3ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:50:55, skipping insertion in model container [2021-04-28 23:50:55,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:50:54" (2/3) ... [2021-04-28 23:50:55,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d0ec3ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:50:55, skipping insertion in model container [2021-04-28 23:50:55,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:50:55" (3/3) ... [2021-04-28 23:50:55,212 INFO L111 eAbstractionObserver]: Analyzing ICFG safe013_tso.oepc.i [2021-04-28 23:50:55,221 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 23:50:55,226 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-28 23:50:55,227 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 23:50:55,266 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,266 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,266 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,267 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,267 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,267 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,267 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,267 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,268 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,268 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,268 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,269 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,269 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,269 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,270 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,270 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,270 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,270 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,271 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,271 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,271 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,272 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,272 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,272 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,273 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,273 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,273 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,273 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,273 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,274 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,274 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,274 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,275 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,275 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,275 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,275 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,278 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,279 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,279 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,279 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,286 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,286 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,286 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,287 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,289 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,290 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,290 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,290 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:50:55,298 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 23:50:55,327 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-28 23:50:55,356 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 23:50:55,356 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 23:50:55,357 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 23:50:55,357 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 23:50:55,357 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 23:50:55,357 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 23:50:55,357 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 23:50:55,358 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 23:50:55,373 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-04-28 23:50:55,425 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-04-28 23:50:55,428 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:50:55,433 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 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. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-28 23:50:55,433 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-04-28 23:50:55,439 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-04-28 23:50:55,441 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:50:55,459 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-04-28 23:50:55,464 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-04-28 23:50:55,466 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-04-28 23:50:55,486 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-04-28 23:50:55,486 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:50:55,487 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-28 23:50:55,490 INFO L146 LiptonReduction]: Number of co-enabled transitions 864 [2021-04-28 23:51:00,564 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:51:00,732 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:51:00,887 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:51:01,203 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:51:01,372 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:51:01,537 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:51:01,689 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:51:01,980 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:51:03,091 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:51:03,327 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:51:03,550 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:51:03,806 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:51:04,020 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:51:04,219 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:51:04,423 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:51:04,629 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:51:04,857 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:51:05,081 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:51:05,312 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:51:05,558 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:51:05,765 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:51:05,962 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:51:06,238 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-28 23:51:06,532 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-28 23:51:06,792 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:51:07,027 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:51:07,219 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:51:07,407 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:51:07,707 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2021-04-28 23:51:07,810 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 23:51:08,039 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2021-04-28 23:51:08,146 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 23:51:08,319 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:51:08,554 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:51:08,674 INFO L158 LiptonReduction]: Checked pairs total: 6566 [2021-04-28 23:51:08,675 INFO L160 LiptonReduction]: Total number of compositions: 99 [2021-04-28 23:51:08,679 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13239 [2021-04-28 23:51:08,704 INFO L129 PetriNetUnfolder]: 0/62 cut-off events. [2021-04-28 23:51:08,704 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:51:08,704 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:08,705 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:08,706 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:08,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:08,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1999117470, now seen corresponding path program 1 times [2021-04-28 23:51:08,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:08,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277745775] [2021-04-28 23:51:08,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:09,148 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:51:09,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:51:09,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:51:09,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277745775] [2021-04-28 23:51:09,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:09,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:51:09,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500225064] [2021-04-28 23:51:09,185 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:51:09,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:09,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:51:09,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:51:09,211 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 174 [2021-04-28 23:51:09,219 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 72 transitions, 153 flow. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:09,219 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:09,219 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 174 [2021-04-28 23:51:09,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:09,400 INFO L129 PetriNetUnfolder]: 84/347 cut-off events. [2021-04-28 23:51:09,400 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:51:09,402 INFO L84 FinitePrefix]: Finished finitePrefix Result has 541 conditions, 347 events. 84/347 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 2633 event pairs, 33 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 493. Up to 127 conditions per place. [2021-04-28 23:51:09,408 INFO L132 encePairwiseOnDemand]: 155/174 looper letters, 4 selfloop transitions, 5 changer transitions 40/80 dead transitions. [2021-04-28 23:51:09,408 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 80 transitions, 235 flow [2021-04-28 23:51:09,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:51:09,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:51:09,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions. [2021-04-28 23:51:09,429 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7049808429118773 [2021-04-28 23:51:09,430 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 368 transitions. [2021-04-28 23:51:09,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 368 transitions. [2021-04-28 23:51:09,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:09,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 368 transitions. [2021-04-28 23:51:09,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 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) [2021-04-28 23:51:09,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:09,458 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:09,461 INFO L185 Difference]: Start difference. First operand has 82 places, 72 transitions, 153 flow. Second operand 3 states and 368 transitions. [2021-04-28 23:51:09,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 80 transitions, 235 flow [2021-04-28 23:51:09,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 80 transitions, 232 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 23:51:09,470 INFO L241 Difference]: Finished difference. Result has 82 places, 40 transitions, 109 flow [2021-04-28 23:51:09,473 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=109, PETRI_PLACES=82, PETRI_TRANSITIONS=40} [2021-04-28 23:51:09,474 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, 0 predicate places. [2021-04-28 23:51:09,474 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:09,476 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 40 transitions, 109 flow [2021-04-28 23:51:09,477 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 40 transitions, 109 flow [2021-04-28 23:51:09,477 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 40 transitions, 109 flow [2021-04-28 23:51:09,505 INFO L129 PetriNetUnfolder]: 11/87 cut-off events. [2021-04-28 23:51:09,505 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-28 23:51:09,508 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 87 events. 11/87 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 420 event pairs, 7 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 126. Up to 26 conditions per place. [2021-04-28 23:51:09,511 INFO L146 LiptonReduction]: Number of co-enabled transitions 854 [2021-04-28 23:51:09,536 INFO L158 LiptonReduction]: Checked pairs total: 261 [2021-04-28 23:51:09,536 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:09,537 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 63 [2021-04-28 23:51:09,539 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 40 transitions, 109 flow [2021-04-28 23:51:09,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:09,540 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:09,540 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:09,541 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 23:51:09,541 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:09,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:09,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1277135982, now seen corresponding path program 1 times [2021-04-28 23:51:09,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:09,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748274165] [2021-04-28 23:51:09,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:09,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:09,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:09,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:09,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:51:09,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748274165] [2021-04-28 23:51:09,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:09,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:51:09,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379335174] [2021-04-28 23:51:09,633 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:51:09,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:09,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:51:09,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:51:09,637 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 174 [2021-04-28 23:51:09,638 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 40 transitions, 109 flow. Second operand has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:09,639 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:09,639 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 174 [2021-04-28 23:51:09,639 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:09,664 INFO L129 PetriNetUnfolder]: 8/79 cut-off events. [2021-04-28 23:51:09,664 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-04-28 23:51:09,667 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 79 events. 8/79 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 350 event pairs, 4 based on Foata normal form. 1/47 useless extension candidates. Maximal degree in co-relation 121. Up to 21 conditions per place. [2021-04-28 23:51:09,668 INFO L132 encePairwiseOnDemand]: 171/174 looper letters, 1 selfloop transitions, 3 changer transitions 1/40 dead transitions. [2021-04-28 23:51:09,668 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 40 transitions, 117 flow [2021-04-28 23:51:09,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:51:09,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:51:09,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 382 transitions. [2021-04-28 23:51:09,676 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7318007662835249 [2021-04-28 23:51:09,676 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 382 transitions. [2021-04-28 23:51:09,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 382 transitions. [2021-04-28 23:51:09,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:09,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 382 transitions. [2021-04-28 23:51:09,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:09,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:09,685 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:09,686 INFO L185 Difference]: Start difference. First operand has 47 places, 40 transitions, 109 flow. Second operand 3 states and 382 transitions. [2021-04-28 23:51:09,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 40 transitions, 117 flow [2021-04-28 23:51:09,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 40 transitions, 112 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:51:09,690 INFO L241 Difference]: Finished difference. Result has 49 places, 39 transitions, 113 flow [2021-04-28 23:51:09,691 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=113, PETRI_PLACES=49, PETRI_TRANSITIONS=39} [2021-04-28 23:51:09,691 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -33 predicate places. [2021-04-28 23:51:09,692 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:09,692 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 39 transitions, 113 flow [2021-04-28 23:51:09,694 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 39 transitions, 113 flow [2021-04-28 23:51:09,695 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 39 transitions, 113 flow [2021-04-28 23:51:09,709 INFO L129 PetriNetUnfolder]: 8/78 cut-off events. [2021-04-28 23:51:09,709 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-04-28 23:51:09,710 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 78 events. 8/78 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 343 event pairs, 4 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 117. Up to 21 conditions per place. [2021-04-28 23:51:09,713 INFO L146 LiptonReduction]: Number of co-enabled transitions 804 [2021-04-28 23:51:09,742 INFO L158 LiptonReduction]: Checked pairs total: 252 [2021-04-28 23:51:09,742 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:09,743 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 51 [2021-04-28 23:51:09,751 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 39 transitions, 113 flow [2021-04-28 23:51:09,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:09,756 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:09,758 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:09,758 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 23:51:09,758 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:09,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:09,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1843119602, now seen corresponding path program 1 times [2021-04-28 23:51:09,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:09,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658426245] [2021-04-28 23:51:09,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:09,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:09,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:09,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:51:09,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658426245] [2021-04-28 23:51:09,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:09,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:51:09,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483532838] [2021-04-28 23:51:09,837 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:51:09,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:09,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:51:09,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:51:09,840 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 174 [2021-04-28 23:51:09,841 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:09,841 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:09,841 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 174 [2021-04-28 23:51:09,841 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:09,862 INFO L129 PetriNetUnfolder]: 6/74 cut-off events. [2021-04-28 23:51:09,862 INFO L130 PetriNetUnfolder]: For 17/20 co-relation queries the response was YES. [2021-04-28 23:51:09,863 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 74 events. 6/74 cut-off events. For 17/20 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 312 event pairs, 3 based on Foata normal form. 2/43 useless extension candidates. Maximal degree in co-relation 120. Up to 18 conditions per place. [2021-04-28 23:51:09,864 INFO L132 encePairwiseOnDemand]: 170/174 looper letters, 3 selfloop transitions, 4 changer transitions 1/41 dead transitions. [2021-04-28 23:51:09,864 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 41 transitions, 135 flow [2021-04-28 23:51:09,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:51:09,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:51:09,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 400 transitions. [2021-04-28 23:51:09,867 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7662835249042146 [2021-04-28 23:51:09,867 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 400 transitions. [2021-04-28 23:51:09,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 400 transitions. [2021-04-28 23:51:09,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:09,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 400 transitions. [2021-04-28 23:51:09,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:09,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:09,872 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:09,872 INFO L185 Difference]: Start difference. First operand has 48 places, 39 transitions, 113 flow. Second operand 3 states and 400 transitions. [2021-04-28 23:51:09,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 41 transitions, 135 flow [2021-04-28 23:51:09,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 41 transitions, 129 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:51:09,875 INFO L241 Difference]: Finished difference. Result has 49 places, 40 transitions, 131 flow [2021-04-28 23:51:09,875 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=131, PETRI_PLACES=49, PETRI_TRANSITIONS=40} [2021-04-28 23:51:09,876 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -33 predicate places. [2021-04-28 23:51:09,876 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:09,876 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 40 transitions, 131 flow [2021-04-28 23:51:09,877 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 40 transitions, 131 flow [2021-04-28 23:51:09,880 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 40 transitions, 131 flow [2021-04-28 23:51:09,888 INFO L129 PetriNetUnfolder]: 6/70 cut-off events. [2021-04-28 23:51:09,889 INFO L130 PetriNetUnfolder]: For 12/15 co-relation queries the response was YES. [2021-04-28 23:51:09,889 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 70 events. 6/70 cut-off events. For 12/15 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 300 event pairs, 2 based on Foata normal form. 1/40 useless extension candidates. Maximal degree in co-relation 116. Up to 18 conditions per place. [2021-04-28 23:51:09,891 INFO L146 LiptonReduction]: Number of co-enabled transitions 820 [2021-04-28 23:51:09,920 INFO L158 LiptonReduction]: Checked pairs total: 261 [2021-04-28 23:51:09,920 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:09,920 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44 [2021-04-28 23:51:09,922 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 131 flow [2021-04-28 23:51:09,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:09,923 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:09,923 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:09,923 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 23:51:09,923 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:09,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:09,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1301553946, now seen corresponding path program 1 times [2021-04-28 23:51:09,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:09,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614157801] [2021-04-28 23:51:09,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:09,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:09,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:09,982 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:51:09,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:51:10,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:51:10,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614157801] [2021-04-28 23:51:10,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:10,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:51:10,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654232529] [2021-04-28 23:51:10,002 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:51:10,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:10,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:51:10,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:51:10,005 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 174 [2021-04-28 23:51:10,006 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 131 flow. Second operand has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:10,007 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:10,007 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 174 [2021-04-28 23:51:10,007 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:10,114 INFO L129 PetriNetUnfolder]: 33/160 cut-off events. [2021-04-28 23:51:10,114 INFO L130 PetriNetUnfolder]: For 67/75 co-relation queries the response was YES. [2021-04-28 23:51:10,115 INFO L84 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 160 events. 33/160 cut-off events. For 67/75 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 877 event pairs, 0 based on Foata normal form. 7/107 useless extension candidates. Maximal degree in co-relation 337. Up to 38 conditions per place. [2021-04-28 23:51:10,117 INFO L132 encePairwiseOnDemand]: 167/174 looper letters, 11 selfloop transitions, 18 changer transitions 0/57 dead transitions. [2021-04-28 23:51:10,117 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 57 transitions, 284 flow [2021-04-28 23:51:10,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:51:10,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:51:10,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 562 transitions. [2021-04-28 23:51:10,120 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6459770114942529 [2021-04-28 23:51:10,120 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 562 transitions. [2021-04-28 23:51:10,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 562 transitions. [2021-04-28 23:51:10,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:10,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 562 transitions. [2021-04-28 23:51:10,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 112.4) internal successors, (562), 5 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:10,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:10,128 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:10,128 INFO L185 Difference]: Start difference. First operand has 48 places, 40 transitions, 131 flow. Second operand 5 states and 562 transitions. [2021-04-28 23:51:10,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 57 transitions, 284 flow [2021-04-28 23:51:10,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 57 transitions, 275 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:51:10,133 INFO L241 Difference]: Finished difference. Result has 55 places, 53 transitions, 285 flow [2021-04-28 23:51:10,133 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=285, PETRI_PLACES=55, PETRI_TRANSITIONS=53} [2021-04-28 23:51:10,133 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -27 predicate places. [2021-04-28 23:51:10,133 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:10,134 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 53 transitions, 285 flow [2021-04-28 23:51:10,134 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 53 transitions, 285 flow [2021-04-28 23:51:10,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 53 transitions, 285 flow [2021-04-28 23:51:10,153 INFO L129 PetriNetUnfolder]: 20/145 cut-off events. [2021-04-28 23:51:10,153 INFO L130 PetriNetUnfolder]: For 115/132 co-relation queries the response was YES. [2021-04-28 23:51:10,154 INFO L84 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 145 events. 20/145 cut-off events. For 115/132 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 854 event pairs, 1 based on Foata normal form. 4/89 useless extension candidates. Maximal degree in co-relation 338. Up to 33 conditions per place. [2021-04-28 23:51:10,158 INFO L146 LiptonReduction]: Number of co-enabled transitions 1202 [2021-04-28 23:51:10,179 INFO L158 LiptonReduction]: Checked pairs total: 98 [2021-04-28 23:51:10,179 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:10,179 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 46 [2021-04-28 23:51:10,181 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 53 transitions, 285 flow [2021-04-28 23:51:10,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:10,182 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:10,182 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:10,182 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 23:51:10,183 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:10,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:10,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1302149146, now seen corresponding path program 2 times [2021-04-28 23:51:10,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:10,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989549615] [2021-04-28 23:51:10,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:10,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:10,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:10,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:10,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:10,243 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:51:10,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:51:10,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:51:10,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989549615] [2021-04-28 23:51:10,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:10,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:51:10,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371274537] [2021-04-28 23:51:10,263 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:51:10,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:10,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:51:10,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:51:10,266 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 174 [2021-04-28 23:51:10,267 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 53 transitions, 285 flow. Second operand has 5 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:10,267 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:10,267 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 174 [2021-04-28 23:51:10,268 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:10,345 INFO L129 PetriNetUnfolder]: 23/154 cut-off events. [2021-04-28 23:51:10,345 INFO L130 PetriNetUnfolder]: For 209/243 co-relation queries the response was YES. [2021-04-28 23:51:10,346 INFO L84 FinitePrefix]: Finished finitePrefix Result has 440 conditions, 154 events. 23/154 cut-off events. For 209/243 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 891 event pairs, 1 based on Foata normal form. 13/105 useless extension candidates. Maximal degree in co-relation 422. Up to 35 conditions per place. [2021-04-28 23:51:10,347 INFO L132 encePairwiseOnDemand]: 167/174 looper letters, 7 selfloop transitions, 9 changer transitions 17/60 dead transitions. [2021-04-28 23:51:10,347 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 60 transitions, 411 flow [2021-04-28 23:51:10,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:51:10,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:51:10,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 558 transitions. [2021-04-28 23:51:10,351 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6413793103448275 [2021-04-28 23:51:10,351 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 558 transitions. [2021-04-28 23:51:10,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 558 transitions. [2021-04-28 23:51:10,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:10,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 558 transitions. [2021-04-28 23:51:10,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 111.6) internal successors, (558), 5 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:10,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:10,359 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:10,359 INFO L185 Difference]: Start difference. First operand has 55 places, 53 transitions, 285 flow. Second operand 5 states and 558 transitions. [2021-04-28 23:51:10,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 60 transitions, 411 flow [2021-04-28 23:51:10,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 60 transitions, 409 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-04-28 23:51:10,365 INFO L241 Difference]: Finished difference. Result has 61 places, 41 transitions, 214 flow [2021-04-28 23:51:10,366 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=214, PETRI_PLACES=61, PETRI_TRANSITIONS=41} [2021-04-28 23:51:10,366 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -21 predicate places. [2021-04-28 23:51:10,366 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:10,366 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 41 transitions, 214 flow [2021-04-28 23:51:10,367 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 41 transitions, 214 flow [2021-04-28 23:51:10,367 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 41 transitions, 214 flow [2021-04-28 23:51:10,378 INFO L129 PetriNetUnfolder]: 7/74 cut-off events. [2021-04-28 23:51:10,378 INFO L130 PetriNetUnfolder]: For 97/100 co-relation queries the response was YES. [2021-04-28 23:51:10,379 INFO L84 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 74 events. 7/74 cut-off events. For 97/100 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 320 event pairs, 3 based on Foata normal form. 1/43 useless extension candidates. Maximal degree in co-relation 192. Up to 19 conditions per place. [2021-04-28 23:51:10,381 INFO L146 LiptonReduction]: Number of co-enabled transitions 770 [2021-04-28 23:51:10,387 INFO L158 LiptonReduction]: Checked pairs total: 60 [2021-04-28 23:51:10,387 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:10,387 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-04-28 23:51:10,389 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 41 transitions, 214 flow [2021-04-28 23:51:10,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:10,390 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:10,390 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:10,390 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 23:51:10,390 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:10,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:10,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1955224630, now seen corresponding path program 1 times [2021-04-28 23:51:10,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:10,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107413919] [2021-04-28 23:51:10,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:10,446 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:51:10,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:51:10,455 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:51:10,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:51:10,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:51:10,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107413919] [2021-04-28 23:51:10,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:10,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:51:10,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435077225] [2021-04-28 23:51:10,472 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:51:10,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:10,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:51:10,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:51:10,475 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 174 [2021-04-28 23:51:10,476 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 41 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:10,476 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:10,476 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 174 [2021-04-28 23:51:10,477 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:11,918 INFO L129 PetriNetUnfolder]: 5278/8475 cut-off events. [2021-04-28 23:51:11,919 INFO L130 PetriNetUnfolder]: For 5812/6526 co-relation queries the response was YES. [2021-04-28 23:51:11,952 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17807 conditions, 8475 events. 5278/8475 cut-off events. For 5812/6526 co-relation queries the response was YES. Maximal size of possible extension queue 1770. Compared 68800 event pairs, 2356 based on Foata normal form. 103/2288 useless extension candidates. Maximal degree in co-relation 17785. Up to 5308 conditions per place. [2021-04-28 23:51:11,977 INFO L132 encePairwiseOnDemand]: 156/174 looper letters, 30 selfloop transitions, 28 changer transitions 0/77 dead transitions. [2021-04-28 23:51:11,978 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 77 transitions, 402 flow [2021-04-28 23:51:11,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:51:11,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:51:11,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 591 transitions. [2021-04-28 23:51:11,982 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6793103448275862 [2021-04-28 23:51:11,982 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 591 transitions. [2021-04-28 23:51:11,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 591 transitions. [2021-04-28 23:51:11,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:11,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 591 transitions. [2021-04-28 23:51:11,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 118.2) internal successors, (591), 5 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:11,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:11,989 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:11,990 INFO L185 Difference]: Start difference. First operand has 60 places, 41 transitions, 214 flow. Second operand 5 states and 591 transitions. [2021-04-28 23:51:11,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 77 transitions, 402 flow [2021-04-28 23:51:11,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 77 transitions, 341 flow, removed 8 selfloop flow, removed 9 redundant places. [2021-04-28 23:51:11,997 INFO L241 Difference]: Finished difference. Result has 58 places, 67 transitions, 364 flow [2021-04-28 23:51:11,997 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=364, PETRI_PLACES=58, PETRI_TRANSITIONS=67} [2021-04-28 23:51:11,998 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -24 predicate places. [2021-04-28 23:51:11,998 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:11,998 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 67 transitions, 364 flow [2021-04-28 23:51:11,999 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 67 transitions, 364 flow [2021-04-28 23:51:11,999 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 67 transitions, 364 flow [2021-04-28 23:51:13,056 INFO L129 PetriNetUnfolder]: 4660/7480 cut-off events. [2021-04-28 23:51:13,057 INFO L130 PetriNetUnfolder]: For 2613/7375 co-relation queries the response was YES. [2021-04-28 23:51:13,081 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21351 conditions, 7480 events. 4660/7480 cut-off events. For 2613/7375 co-relation queries the response was YES. Maximal size of possible extension queue 1938. Compared 61598 event pairs, 2168 based on Foata normal form. 2/2130 useless extension candidates. Maximal degree in co-relation 21335. Up to 6726 conditions per place. [2021-04-28 23:51:13,172 INFO L146 LiptonReduction]: Number of co-enabled transitions 902 [2021-04-28 23:51:13,191 INFO L158 LiptonReduction]: Checked pairs total: 60 [2021-04-28 23:51:13,191 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:13,191 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1193 [2021-04-28 23:51:13,193 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 67 transitions, 364 flow [2021-04-28 23:51:13,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:13,193 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:13,193 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:13,194 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 23:51:13,194 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:13,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:13,194 INFO L82 PathProgramCache]: Analyzing trace with hash 679146721, now seen corresponding path program 1 times [2021-04-28 23:51:13,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:13,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473706654] [2021-04-28 23:51:13,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:13,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:13,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:13,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:13,254 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:51:13,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:51:13,264 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:51:13,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:51:13,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:51:13,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473706654] [2021-04-28 23:51:13,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:13,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:51:13,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646078991] [2021-04-28 23:51:13,288 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:51:13,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:13,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:51:13,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:51:13,291 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 174 [2021-04-28 23:51:13,293 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 67 transitions, 364 flow. Second operand has 5 states, 5 states have (on average 107.8) internal successors, (539), 5 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:13,293 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:13,293 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 174 [2021-04-28 23:51:13,293 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:15,038 INFO L129 PetriNetUnfolder]: 5068/9039 cut-off events. [2021-04-28 23:51:15,039 INFO L130 PetriNetUnfolder]: For 4243/20526 co-relation queries the response was YES. [2021-04-28 23:51:15,076 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34584 conditions, 9039 events. 5068/9039 cut-off events. For 4243/20526 co-relation queries the response was YES. Maximal size of possible extension queue 2367. Compared 83332 event pairs, 514 based on Foata normal form. 141/2848 useless extension candidates. Maximal degree in co-relation 34566. Up to 8127 conditions per place. [2021-04-28 23:51:15,107 INFO L132 encePairwiseOnDemand]: 156/174 looper letters, 22 selfloop transitions, 63 changer transitions 9/113 dead transitions. [2021-04-28 23:51:15,107 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 113 transitions, 805 flow [2021-04-28 23:51:15,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 23:51:15,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 23:51:15,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 829 transitions. [2021-04-28 23:51:15,112 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.680623973727422 [2021-04-28 23:51:15,112 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 829 transitions. [2021-04-28 23:51:15,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 829 transitions. [2021-04-28 23:51:15,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:15,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 829 transitions. [2021-04-28 23:51:15,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 118.42857142857143) internal successors, (829), 7 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:15,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 174.0) internal successors, (1392), 8 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:15,122 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 174.0) internal successors, (1392), 8 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:15,122 INFO L185 Difference]: Start difference. First operand has 58 places, 67 transitions, 364 flow. Second operand 7 states and 829 transitions. [2021-04-28 23:51:15,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 113 transitions, 805 flow [2021-04-28 23:51:15,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 113 transitions, 805 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 23:51:15,203 INFO L241 Difference]: Finished difference. Result has 67 places, 102 transitions, 805 flow [2021-04-28 23:51:15,204 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=805, PETRI_PLACES=67, PETRI_TRANSITIONS=102} [2021-04-28 23:51:15,204 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -15 predicate places. [2021-04-28 23:51:15,205 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:15,205 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 102 transitions, 805 flow [2021-04-28 23:51:15,205 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 102 transitions, 805 flow [2021-04-28 23:51:15,206 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 102 transitions, 805 flow [2021-04-28 23:51:16,086 INFO L129 PetriNetUnfolder]: 3064/6130 cut-off events. [2021-04-28 23:51:16,086 INFO L130 PetriNetUnfolder]: For 7467/21210 co-relation queries the response was YES. [2021-04-28 23:51:16,117 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26122 conditions, 6130 events. 3064/6130 cut-off events. For 7467/21210 co-relation queries the response was YES. Maximal size of possible extension queue 1772. Compared 63926 event pairs, 522 based on Foata normal form. 7/1676 useless extension candidates. Maximal degree in co-relation 26101. Up to 5367 conditions per place. [2021-04-28 23:51:16,198 INFO L146 LiptonReduction]: Number of co-enabled transitions 1114 [2021-04-28 23:51:16,238 INFO L158 LiptonReduction]: Checked pairs total: 56 [2021-04-28 23:51:16,238 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:16,239 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1035 [2021-04-28 23:51:16,245 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 102 transitions, 805 flow [2021-04-28 23:51:16,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 107.8) internal successors, (539), 5 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:16,246 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:16,247 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:16,247 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 23:51:16,247 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:16,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:16,248 INFO L82 PathProgramCache]: Analyzing trace with hash -362254371, now seen corresponding path program 1 times [2021-04-28 23:51:16,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:16,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506670001] [2021-04-28 23:51:16,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:16,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:16,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:51:16,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:16,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:16,346 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:51:16,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:51:16,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:51:16,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506670001] [2021-04-28 23:51:16,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:16,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:51:16,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768157086] [2021-04-28 23:51:16,361 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:51:16,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:16,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:51:16,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:51:16,364 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 174 [2021-04-28 23:51:16,365 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 102 transitions, 805 flow. Second operand has 4 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:16,365 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:16,366 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 174 [2021-04-28 23:51:16,366 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:17,374 INFO L129 PetriNetUnfolder]: 3138/6526 cut-off events. [2021-04-28 23:51:17,374 INFO L130 PetriNetUnfolder]: For 9225/33810 co-relation queries the response was YES. [2021-04-28 23:51:17,411 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27757 conditions, 6526 events. 3138/6526 cut-off events. For 9225/33810 co-relation queries the response was YES. Maximal size of possible extension queue 1698. Compared 68331 event pairs, 486 based on Foata normal form. 94/1743 useless extension candidates. Maximal degree in co-relation 27734. Up to 5730 conditions per place. [2021-04-28 23:51:17,430 INFO L132 encePairwiseOnDemand]: 167/174 looper letters, 5 selfloop transitions, 12 changer transitions 13/107 dead transitions. [2021-04-28 23:51:17,430 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 107 transitions, 868 flow [2021-04-28 23:51:17,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:51:17,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:51:17,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 545 transitions. [2021-04-28 23:51:17,434 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6264367816091954 [2021-04-28 23:51:17,435 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 545 transitions. [2021-04-28 23:51:17,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 545 transitions. [2021-04-28 23:51:17,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:17,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 545 transitions. [2021-04-28 23:51:17,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:17,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:17,442 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:17,442 INFO L185 Difference]: Start difference. First operand has 67 places, 102 transitions, 805 flow. Second operand 5 states and 545 transitions. [2021-04-28 23:51:17,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 107 transitions, 868 flow [2021-04-28 23:51:18,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 107 transitions, 770 flow, removed 34 selfloop flow, removed 2 redundant places. [2021-04-28 23:51:18,186 INFO L241 Difference]: Finished difference. Result has 71 places, 94 transitions, 673 flow [2021-04-28 23:51:18,187 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=707, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=673, PETRI_PLACES=71, PETRI_TRANSITIONS=94} [2021-04-28 23:51:18,187 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -11 predicate places. [2021-04-28 23:51:18,187 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:18,188 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 94 transitions, 673 flow [2021-04-28 23:51:18,188 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 94 transitions, 673 flow [2021-04-28 23:51:18,189 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 94 transitions, 673 flow [2021-04-28 23:51:18,737 INFO L129 PetriNetUnfolder]: 1778/4780 cut-off events. [2021-04-28 23:51:18,738 INFO L130 PetriNetUnfolder]: For 4060/8272 co-relation queries the response was YES. [2021-04-28 23:51:18,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17708 conditions, 4780 events. 1778/4780 cut-off events. For 4060/8272 co-relation queries the response was YES. Maximal size of possible extension queue 1393. Compared 58275 event pairs, 486 based on Foata normal form. 6/1274 useless extension candidates. Maximal degree in co-relation 17685. Up to 2941 conditions per place. [2021-04-28 23:51:18,803 INFO L146 LiptonReduction]: Number of co-enabled transitions 1250 [2021-04-28 23:51:18,830 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:51:18,830 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:18,830 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 643 [2021-04-28 23:51:18,834 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 94 transitions, 673 flow [2021-04-28 23:51:18,835 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:18,835 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:51:18,835 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:51:18,835 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 23:51:18,835 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:51:18,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:51:18,836 INFO L82 PathProgramCache]: Analyzing trace with hash -998550228, now seen corresponding path program 1 times [2021-04-28 23:51:18,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:51:18,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129510557] [2021-04-28 23:51:18,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:51:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:51:18,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:18,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:18,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:51:18,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:51:18,935 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:51:18,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:51:18,949 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:51:18,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:51:18,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:51:18,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129510557] [2021-04-28 23:51:18,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:51:18,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 23:51:18,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528116332] [2021-04-28 23:51:18,961 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 23:51:18,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:51:18,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 23:51:18,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 23:51:18,963 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 174 [2021-04-28 23:51:18,965 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 94 transitions, 673 flow. Second operand has 6 states, 6 states have (on average 107.83333333333333) internal successors, (647), 6 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:18,965 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:51:18,965 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 174 [2021-04-28 23:51:18,965 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:51:19,827 INFO L129 PetriNetUnfolder]: 1484/4776 cut-off events. [2021-04-28 23:51:19,827 INFO L130 PetriNetUnfolder]: For 4214/18694 co-relation queries the response was YES. [2021-04-28 23:51:19,848 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21807 conditions, 4776 events. 1484/4776 cut-off events. For 4214/18694 co-relation queries the response was YES. Maximal size of possible extension queue 1482. Compared 63357 event pairs, 0 based on Foata normal form. 88/1474 useless extension candidates. Maximal degree in co-relation 21782. Up to 2761 conditions per place. [2021-04-28 23:51:19,854 INFO L132 encePairwiseOnDemand]: 156/174 looper letters, 0 selfloop transitions, 0 changer transitions 116/116 dead transitions. [2021-04-28 23:51:19,854 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 116 transitions, 1004 flow [2021-04-28 23:51:19,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 23:51:19,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 23:51:19,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1038 transitions. [2021-04-28 23:51:19,859 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6628352490421456 [2021-04-28 23:51:19,859 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1038 transitions. [2021-04-28 23:51:19,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1038 transitions. [2021-04-28 23:51:19,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:51:19,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1038 transitions. [2021-04-28 23:51:19,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 115.33333333333333) internal successors, (1038), 9 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:19,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 174.0) internal successors, (1740), 10 states have internal predecessors, (1740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:19,869 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 174.0) internal successors, (1740), 10 states have internal predecessors, (1740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:19,869 INFO L185 Difference]: Start difference. First operand has 71 places, 94 transitions, 673 flow. Second operand 9 states and 1038 transitions. [2021-04-28 23:51:19,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 116 transitions, 1004 flow [2021-04-28 23:51:20,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 116 transitions, 906 flow, removed 12 selfloop flow, removed 4 redundant places. [2021-04-28 23:51:20,345 INFO L241 Difference]: Finished difference. Result has 74 places, 0 transitions, 0 flow [2021-04-28 23:51:20,346 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=74, PETRI_TRANSITIONS=0} [2021-04-28 23:51:20,346 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -8 predicate places. [2021-04-28 23:51:20,346 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:51:20,346 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 0 transitions, 0 flow [2021-04-28 23:51:20,347 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 0 transitions, 0 flow [2021-04-28 23:51:20,347 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-28 23:51:20,347 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-28 23:51:20,347 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:51:20,348 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-28 23:51:20,348 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-28 23:51:20,348 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:51:20,348 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:51:20,349 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3 [2021-04-28 23:51:20,350 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-28 23:51:20,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 107.83333333333333) internal successors, (647), 6 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:51:20,351 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 23:51:20,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 11:51:20 BasicIcfg [2021-04-28 23:51:20,355 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 23:51:20,356 INFO L168 Benchmark]: Toolchain (without parser) took 26813.63 ms. Allocated memory was 302.0 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 275.8 MB in the beginning and 1.2 GB in the end (delta: -972.0 MB). Peak memory consumption was 455.7 MB. Max. memory is 16.0 GB. [2021-04-28 23:51:20,357 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 302.0 MB. Free memory is still 272.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:51:20,357 INFO L168 Benchmark]: CACSL2BoogieTranslator took 833.29 ms. Allocated memory is still 302.0 MB. Free memory was 272.6 MB in the beginning and 281.3 MB in the end (delta: -8.7 MB). Peak memory consumption was 32.9 MB. Max. memory is 16.0 GB. [2021-04-28 23:51:20,358 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.47 ms. Allocated memory is still 302.0 MB. Free memory was 281.3 MB in the beginning and 279.2 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:51:20,358 INFO L168 Benchmark]: Boogie Preprocessor took 33.10 ms. Allocated memory is still 302.0 MB. Free memory was 279.2 MB in the beginning and 278.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:51:20,359 INFO L168 Benchmark]: RCFGBuilder took 661.34 ms. Allocated memory is still 302.0 MB. Free memory was 278.1 MB in the beginning and 254.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:51:20,359 INFO L168 Benchmark]: TraceAbstraction took 25151.58 ms. Allocated memory was 302.0 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 254.0 MB in the beginning and 1.2 GB in the end (delta: -993.8 MB). Peak memory consumption was 435.4 MB. Max. memory is 16.0 GB. [2021-04-28 23:51:20,361 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 302.0 MB. Free memory is still 272.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 833.29 ms. Allocated memory is still 302.0 MB. Free memory was 272.6 MB in the beginning and 281.3 MB in the end (delta: -8.7 MB). Peak memory consumption was 32.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 60.47 ms. Allocated memory is still 302.0 MB. Free memory was 281.3 MB in the beginning and 279.2 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 33.10 ms. Allocated memory is still 302.0 MB. Free memory was 279.2 MB in the beginning and 278.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 661.34 ms. Allocated memory is still 302.0 MB. Free memory was 278.1 MB in the beginning and 254.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 25151.58 ms. Allocated memory was 302.0 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 254.0 MB in the beginning and 1.2 GB in the end (delta: -993.8 MB). Peak memory consumption was 435.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13211.1ms, 69 PlacesBefore, 82 PlacesAfterwards, 60 TransitionsBefore, 72 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 7 FixpointIterations, 56 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 99 TotalNumberOfCompositions, 6566 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2050, positive: 1850, positive conditional: 1850, positive unconditional: 0, negative: 200, negative conditional: 200, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 861, positive: 819, positive conditional: 0, positive unconditional: 819, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 861, positive: 819, positive conditional: 0, positive unconditional: 819, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 861, positive: 805, positive conditional: 0, positive unconditional: 805, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 56, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 319, positive: 97, positive conditional: 0, positive unconditional: 97, negative: 222, negative conditional: 0, negative unconditional: 222, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2050, positive: 1031, positive conditional: 1031, positive unconditional: 0, negative: 158, negative conditional: 158, negative unconditional: 0, unknown: 861, unknown conditional: 861, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 858, Positive cache size: 816, Positive conditional cache size: 816, Positive unconditional cache size: 0, Negative cache size: 42, Negative conditional cache size: 42, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 60.0ms, 82 PlacesBefore, 47 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 854 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 261 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 29, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 17, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 29, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 863, Positive cache size: 818, Positive conditional cache size: 818, Positive unconditional cache size: 0, Negative cache size: 45, Negative conditional cache size: 45, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 48.3ms, 49 PlacesBefore, 48 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 804 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 252 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 76, positive: 67, positive conditional: 67, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 11, positive conditional: 2, positive unconditional: 9, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, positive: 11, positive conditional: 2, positive unconditional: 9, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, positive: 11, positive conditional: 0, positive unconditional: 11, 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: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 18, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 76, positive: 56, positive conditional: 56, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 876, Positive cache size: 829, Positive conditional cache size: 829, Positive unconditional cache size: 0, Negative cache size: 47, Negative conditional cache size: 47, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.5ms, 49 PlacesBefore, 48 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 820 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 261 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 48, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 22, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 22, negative conditional: 22, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 48, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 880, Positive cache size: 831, Positive conditional cache size: 831, Positive unconditional cache size: 0, Negative cache size: 49, Negative conditional cache size: 49, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 45.3ms, 55 PlacesBefore, 55 PlacesAfterwards, 53 TransitionsBefore, 53 TransitionsAfterwards, 1202 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 98 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 16, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 1, positive unconditional: 2, 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: 5, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 12, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 16, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 885, Positive cache size: 834, Positive conditional cache size: 834, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.2ms, 61 PlacesBefore, 60 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 770 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 60 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 21, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 1, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 1, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 14, positive conditional: 14, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 889, Positive cache size: 838, Positive conditional cache size: 838, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1192.4ms, 58 PlacesBefore, 58 PlacesAfterwards, 67 TransitionsBefore, 67 TransitionsAfterwards, 902 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 60 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 6, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 890, Positive cache size: 839, Positive conditional cache size: 839, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1033.3ms, 67 PlacesBefore, 67 PlacesAfterwards, 102 TransitionsBefore, 102 TransitionsAfterwards, 1114 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 56 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 6, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 891, Positive cache size: 840, Positive conditional cache size: 840, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 641.9ms, 71 PlacesBefore, 71 PlacesAfterwards, 94 TransitionsBefore, 94 TransitionsAfterwards, 1250 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 891, Positive cache size: 840, Positive conditional cache size: 840, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6ms, 74 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 891, Positive cache size: 840, Positive conditional cache size: 840, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 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, 74 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 14.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 25001.1ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 7249.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13331.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 71 SDtfs, 80 SDslu, 29 SDs, 0 SdLazy, 337 SolverSat, 126 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 562.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 251.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=805occurred in iteration=7, InterpolantAutomatonStates: 45, 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: 31.7ms SsaConstructionTime, 271.9ms SatisfiabilityAnalysisTime, 673.5ms InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 411 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...