/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/mix057_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 22:39:15,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 22:39:15,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 22:39:15,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 22:39:15,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 22:39:15,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 22:39:15,902 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 22:39:15,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 22:39:15,906 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 22:39:15,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 22:39:15,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 22:39:15,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 22:39:15,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 22:39:15,912 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 22:39:15,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 22:39:15,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 22:39:15,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 22:39:15,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 22:39:15,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 22:39:15,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 22:39:15,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 22:39:15,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 22:39:15,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 22:39:15,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 22:39:15,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 22:39:15,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 22:39:15,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 22:39:15,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 22:39:15,944 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 22:39:15,971 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 22:39:15,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 22:39:15,973 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 22:39:15,973 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 22:39:15,974 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 22:39:15,974 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 22:39:15,974 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 22:39:15,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 22:39:15,975 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 22:39:15,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 22:39:15,976 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 22:39:15,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 22:39:15,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 22:39:15,977 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 22:39:15,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 22:39:15,977 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 22:39:15,978 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 22:39:15,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 22:39:15,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 22:39:15,979 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 22:39:15,979 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 22:39:15,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 22:39:15,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 22:39:15,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 22:39:15,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 22:39:15,981 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 22:39:15,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 22:39:15,982 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 22:39:15,982 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 22:39:15,982 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 22:39:15,982 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 22:39:16,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 22:39:16,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 22:39:16,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 22:39:16,416 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 22:39:16,419 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 22:39:16,421 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix057_pso.opt.i [2021-04-28 22:39:16,502 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b04240b14/2d7db8414a0945ccb173ca0b85a5e85e/FLAG435d0a61f [2021-04-28 22:39:17,281 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 22:39:17,281 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_pso.opt.i [2021-04-28 22:39:17,302 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b04240b14/2d7db8414a0945ccb173ca0b85a5e85e/FLAG435d0a61f [2021-04-28 22:39:17,509 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b04240b14/2d7db8414a0945ccb173ca0b85a5e85e [2021-04-28 22:39:17,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 22:39:17,564 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 22:39:17,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 22:39:17,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 22:39:17,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 22:39:17,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 10:39:17" (1/1) ... [2021-04-28 22:39:17,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1df5cbfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:39:17, skipping insertion in model container [2021-04-28 22:39:17,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 10:39:17" (1/1) ... [2021-04-28 22:39:17,580 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 22:39:17,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 22:39:17,788 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/mix057_pso.opt.i[948,961] [2021-04-28 22:39:18,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 22:39:18,086 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 22:39:18,100 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/mix057_pso.opt.i[948,961] [2021-04-28 22:39:18,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 22:39:18,266 INFO L208 MainTranslator]: Completed translation [2021-04-28 22:39:18,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:39:18 WrapperNode [2021-04-28 22:39:18,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 22:39:18,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 22:39:18,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 22:39:18,268 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 22:39:18,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:39:18" (1/1) ... [2021-04-28 22:39:18,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:39:18" (1/1) ... [2021-04-28 22:39:18,334 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 22:39:18,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 22:39:18,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 22:39:18,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 22:39:18,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:39:18" (1/1) ... [2021-04-28 22:39:18,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:39:18" (1/1) ... [2021-04-28 22:39:18,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:39:18" (1/1) ... [2021-04-28 22:39:18,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:39:18" (1/1) ... [2021-04-28 22:39:18,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:39:18" (1/1) ... [2021-04-28 22:39:18,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:39:18" (1/1) ... [2021-04-28 22:39:18,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:39:18" (1/1) ... [2021-04-28 22:39:18,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 22:39:18,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 22:39:18,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 22:39:18,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 22:39:18,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:39:18" (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 22:39:18,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 22:39:18,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 22:39:18,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 22:39:18,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 22:39:18,476 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 22:39:18,476 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 22:39:18,476 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 22:39:18,476 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 22:39:18,477 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 22:39:18,477 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 22:39:18,477 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 22:39:18,477 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 22:39:18,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 22:39:18,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 22:39:18,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 22:39:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 22:39:18,480 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 22:39:20,598 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 22:39:20,598 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 22:39:20,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 10:39:20 BoogieIcfgContainer [2021-04-28 22:39:20,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 22:39:20,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 22:39:20,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 22:39:20,606 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 22:39:20,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 10:39:17" (1/3) ... [2021-04-28 22:39:20,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d86459a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 10:39:20, skipping insertion in model container [2021-04-28 22:39:20,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:39:18" (2/3) ... [2021-04-28 22:39:20,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d86459a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 10:39:20, skipping insertion in model container [2021-04-28 22:39:20,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 10:39:20" (3/3) ... [2021-04-28 22:39:20,609 INFO L111 eAbstractionObserver]: Analyzing ICFG mix057_pso.opt.i [2021-04-28 22:39:20,617 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 22:39:20,622 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 22:39:20,623 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 22:39:20,659 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,660 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,660 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,660 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,660 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,660 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,661 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,661 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,661 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,661 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,661 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,662 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,662 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,662 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,663 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,663 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,664 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,664 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,665 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,665 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,665 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,665 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,665 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,665 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,666 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,666 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,666 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,666 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,666 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,667 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,667 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,667 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,667 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,668 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,668 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,668 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,668 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,668 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,669 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,669 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,669 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,669 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,670 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,670 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,670 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,670 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,670 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,671 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,671 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,671 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,671 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,671 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,671 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,672 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,672 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,672 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,672 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,673 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,673 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,673 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,673 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,673 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,673 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,674 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,674 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,674 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,674 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,675 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,675 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,675 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,675 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,675 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,676 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,676 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,676 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,676 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,678 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,679 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,679 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,679 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,681 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,681 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,681 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,682 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,682 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,682 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,682 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,682 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,683 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,683 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,685 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,685 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,685 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,686 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,686 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,686 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,686 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,686 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,687 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,687 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,687 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,687 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,688 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,689 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,689 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,689 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:39:20,690 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 22:39:20,712 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 22:39:20,737 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 22:39:20,737 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 22:39:20,737 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 22:39:20,737 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 22:39:20,738 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 22:39:20,738 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 22:39:20,738 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 22:39:20,738 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 22:39:20,752 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 112 transitions, 244 flow [2021-04-28 22:39:20,803 INFO L129 PetriNetUnfolder]: 2/108 cut-off events. [2021-04-28 22:39:20,804 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:39:20,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 2/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2021-04-28 22:39:20,810 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 112 transitions, 244 flow [2021-04-28 22:39:20,815 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 108 transitions, 228 flow [2021-04-28 22:39:20,817 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:39:20,833 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 108 transitions, 228 flow [2021-04-28 22:39:20,837 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 108 transitions, 228 flow [2021-04-28 22:39:20,840 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 108 transitions, 228 flow [2021-04-28 22:39:20,867 INFO L129 PetriNetUnfolder]: 2/108 cut-off events. [2021-04-28 22:39:20,867 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:39:20,868 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 2/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2021-04-28 22:39:20,872 INFO L146 LiptonReduction]: Number of co-enabled transitions 2406 [2021-04-28 22:39:22,507 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-04-28 22:39:23,005 WARN L205 SmtUtils]: Spent 492.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 22:39:25,168 WARN L205 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-04-28 22:39:26,133 WARN L205 SmtUtils]: Spent 960.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:39:29,446 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 22:39:29,563 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 22:39:30,123 WARN L205 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2021-04-28 22:39:30,346 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 22:39:30,904 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2021-04-28 22:39:33,643 WARN L205 SmtUtils]: Spent 981.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 187 [2021-04-28 22:39:34,129 WARN L205 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 22:39:35,108 WARN L205 SmtUtils]: Spent 976.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:39:36,137 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:39:37,182 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 186 DAG size of output: 185 [2021-04-28 22:39:37,674 WARN L205 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 22:39:38,713 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:39:39,768 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:39:40,839 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2021-04-28 22:39:41,369 WARN L205 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:39:42,402 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 22:39:43,451 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 22:39:46,359 WARN L205 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:39:46,944 WARN L205 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:39:48,029 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:39:49,127 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:39:49,696 WARN L205 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 22:39:50,243 WARN L205 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 22:39:51,437 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:39:52,592 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:39:53,160 WARN L205 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:39:53,724 WARN L205 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:39:54,881 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:39:56,064 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:39:56,650 WARN L205 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:39:57,244 WARN L205 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:39:58,439 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:39:59,625 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:40:03,678 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:40:06,109 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 186 DAG size of output: 185 [2021-04-28 22:40:06,712 WARN L205 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 22:40:07,936 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:40:09,206 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:40:09,808 WARN L205 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:40:10,412 WARN L205 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:40:11,642 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:40:12,868 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:40:13,502 WARN L205 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:40:14,156 WARN L205 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:40:16,719 WARN L205 SmtUtils]: Spent 2.56 s on a formula simplification. DAG size of input: 268 DAG size of output: 267 [2021-04-28 22:40:18,027 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:40:19,772 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:40:19,874 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:40:22,496 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:40:23,853 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-28 22:40:23,996 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-28 22:40:24,145 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-28 22:40:24,299 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-28 22:40:24,462 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 22:40:24,618 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 22:40:24,770 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 22:40:24,921 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 22:40:26,533 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:40:26,666 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:40:26,796 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:40:26,929 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:40:27,046 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:40:27,161 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:40:27,285 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:40:27,403 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:40:27,793 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:40:27,911 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:40:28,034 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:40:28,157 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:40:28,306 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:40:28,452 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:40:28,601 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:40:28,749 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:40:28,869 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:40:28,989 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:40:29,104 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:40:29,221 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:40:29,335 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:40:29,457 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:40:29,570 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:40:29,682 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:40:29,818 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:40:29,954 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:40:30,095 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:40:30,236 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:40:30,384 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:40:30,528 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:40:30,669 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:40:30,810 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:40:30,936 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:40:31,060 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:40:31,192 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:40:31,322 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:40:31,565 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:40:31,785 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:40:32,015 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:40:32,242 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:40:32,466 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:40:32,688 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:40:32,922 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:40:33,150 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:40:33,381 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:40:33,601 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:40:33,824 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:40:34,051 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:40:34,213 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:40:34,378 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:40:34,539 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:40:34,700 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:40:34,885 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:40:35,069 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:40:35,248 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:40:35,426 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:40:35,609 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:40:35,798 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:40:35,975 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:40:36,156 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:40:36,357 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:40:36,558 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:40:36,761 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:40:36,977 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:40:37,195 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:40:37,414 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:40:37,633 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:40:37,847 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:40:38,040 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:40:38,229 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:40:38,426 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:40:38,631 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:40:38,841 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:40:39,048 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:40:39,258 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:40:39,469 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:40:40,019 WARN L205 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2021-04-28 22:40:40,289 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-04-28 22:40:40,884 WARN L205 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2021-04-28 22:40:41,159 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-04-28 22:40:41,744 WARN L205 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2021-04-28 22:40:42,032 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-04-28 22:40:42,634 WARN L205 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2021-04-28 22:40:42,919 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-04-28 22:40:43,145 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:40:43,370 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:40:43,591 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:40:43,811 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:40:44,008 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:40:44,203 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:40:44,414 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:40:44,605 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:40:44,774 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:40:44,939 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:40:45,111 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:40:45,283 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:40:45,452 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:40:45,619 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:40:45,772 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:40:45,925 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:40:45,986 INFO L158 LiptonReduction]: Checked pairs total: 22454 [2021-04-28 22:40:45,987 INFO L160 LiptonReduction]: Total number of compositions: 247 [2021-04-28 22:40:45,991 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 85175 [2021-04-28 22:40:46,018 INFO L129 PetriNetUnfolder]: 1/92 cut-off events. [2021-04-28 22:40:46,018 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:40:46,018 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:40:46,019 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:40:46,020 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:40:46,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:40:46,025 INFO L82 PathProgramCache]: Analyzing trace with hash 50815099, now seen corresponding path program 1 times [2021-04-28 22:40:46,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:40:46,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28116458] [2021-04-28 22:40:46,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:40:46,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:40:46,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:40:46,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:40:46,392 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 22:40:46,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28116458] [2021-04-28 22:40:46,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:40:46,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:40:46,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932682153] [2021-04-28 22:40:46,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:40:46,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:40:46,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:40:46,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:40:46,423 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 359 [2021-04-28 22:40:46,429 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 135 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 285.6666666666667) internal successors, (857), 3 states have internal predecessors, (857), 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 22:40:46,429 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:40:46,429 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 359 [2021-04-28 22:40:46,431 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:40:46,853 INFO L129 PetriNetUnfolder]: 107/453 cut-off events. [2021-04-28 22:40:46,854 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:40:46,857 INFO L84 FinitePrefix]: Finished finitePrefix Result has 679 conditions, 453 events. 107/453 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 3341 event pairs, 15 based on Foata normal form. 6/217 useless extension candidates. Maximal degree in co-relation 606. Up to 157 conditions per place. [2021-04-28 22:40:46,861 INFO L132 encePairwiseOnDemand]: 343/359 looper letters, 7 selfloop transitions, 2 changer transitions 97/146 dead transitions. [2021-04-28 22:40:46,861 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 146 transitions, 392 flow [2021-04-28 22:40:46,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:40:46,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:40:46,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 904 transitions. [2021-04-28 22:40:46,886 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8393686165273909 [2021-04-28 22:40:46,886 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 904 transitions. [2021-04-28 22:40:46,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 904 transitions. [2021-04-28 22:40:46,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:40:46,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 904 transitions. [2021-04-28 22:40:46,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 301.3333333333333) internal successors, (904), 3 states have internal predecessors, (904), 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 22:40:46,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 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 22:40:46,914 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 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 22:40:46,917 INFO L185 Difference]: Start difference. First operand has 146 places, 135 transitions, 282 flow. Second operand 3 states and 904 transitions. [2021-04-28 22:40:46,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 146 transitions, 392 flow [2021-04-28 22:40:46,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 146 transitions, 388 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 22:40:46,926 INFO L241 Difference]: Finished difference. Result has 141 places, 46 transitions, 104 flow [2021-04-28 22:40:46,929 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=141, PETRI_TRANSITIONS=46} [2021-04-28 22:40:46,930 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -5 predicate places. [2021-04-28 22:40:46,931 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:40:46,931 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 46 transitions, 104 flow [2021-04-28 22:40:46,931 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 46 transitions, 104 flow [2021-04-28 22:40:46,932 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 46 transitions, 104 flow [2021-04-28 22:40:46,940 INFO L129 PetriNetUnfolder]: 0/46 cut-off events. [2021-04-28 22:40:46,941 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:40:46,941 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 46 events. 0/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 139 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-28 22:40:46,942 INFO L146 LiptonReduction]: Number of co-enabled transitions 1278 [2021-04-28 22:40:47,042 INFO L158 LiptonReduction]: Checked pairs total: 1274 [2021-04-28 22:40:47,042 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:40:47,042 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 111 [2021-04-28 22:40:47,045 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 46 transitions, 104 flow [2021-04-28 22:40:47,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 285.6666666666667) internal successors, (857), 3 states have internal predecessors, (857), 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 22:40:47,046 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:40:47,046 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:40:47,046 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 22:40:47,046 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:40:47,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:40:47,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1588779353, now seen corresponding path program 1 times [2021-04-28 22:40:47,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:40:47,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548839350] [2021-04-28 22:40:47,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:40:47,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:40:47,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:40:47,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:40:47,163 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 22:40:47,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548839350] [2021-04-28 22:40:47,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:40:47,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:40:47,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346457235] [2021-04-28 22:40:47,165 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:40:47,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:40:47,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:40:47,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:40:47,168 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 359 [2021-04-28 22:40:47,170 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 246.66666666666666) internal successors, (740), 3 states have internal predecessors, (740), 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 22:40:47,170 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:40:47,170 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 359 [2021-04-28 22:40:47,170 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:40:47,195 INFO L129 PetriNetUnfolder]: 3/60 cut-off events. [2021-04-28 22:40:47,195 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:40:47,196 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 60 events. 3/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 207 event pairs, 1 based on Foata normal form. 1/36 useless extension candidates. Maximal degree in co-relation 74. Up to 10 conditions per place. [2021-04-28 22:40:47,196 INFO L132 encePairwiseOnDemand]: 355/359 looper letters, 3 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2021-04-28 22:40:47,196 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 48 transitions, 120 flow [2021-04-28 22:40:47,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:40:47,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:40:47,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 745 transitions. [2021-04-28 22:40:47,201 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.691736304549675 [2021-04-28 22:40:47,201 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 745 transitions. [2021-04-28 22:40:47,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 745 transitions. [2021-04-28 22:40:47,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:40:47,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 745 transitions. [2021-04-28 22:40:47,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 248.33333333333334) internal successors, (745), 3 states have internal predecessors, (745), 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 22:40:47,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 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 22:40:47,210 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 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 22:40:47,210 INFO L185 Difference]: Start difference. First operand has 57 places, 46 transitions, 104 flow. Second operand 3 states and 745 transitions. [2021-04-28 22:40:47,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 48 transitions, 120 flow [2021-04-28 22:40:47,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 48 transitions, 116 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 22:40:47,212 INFO L241 Difference]: Finished difference. Result has 58 places, 48 transitions, 119 flow [2021-04-28 22:40:47,213 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=58, PETRI_TRANSITIONS=48} [2021-04-28 22:40:47,213 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -88 predicate places. [2021-04-28 22:40:47,213 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:40:47,213 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 48 transitions, 119 flow [2021-04-28 22:40:47,214 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 48 transitions, 119 flow [2021-04-28 22:40:47,214 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 48 transitions, 119 flow [2021-04-28 22:40:47,223 INFO L129 PetriNetUnfolder]: 3/58 cut-off events. [2021-04-28 22:40:47,223 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:40:47,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 58 events. 3/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 199 event pairs, 1 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 73. Up to 10 conditions per place. [2021-04-28 22:40:47,226 INFO L146 LiptonReduction]: Number of co-enabled transitions 1388 [2021-04-28 22:40:47,639 INFO L158 LiptonReduction]: Checked pairs total: 1056 [2021-04-28 22:40:47,639 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:40:47,639 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 426 [2021-04-28 22:40:47,641 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 48 transitions, 119 flow [2021-04-28 22:40:47,642 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 246.66666666666666) internal successors, (740), 3 states have internal predecessors, (740), 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 22:40:47,642 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:40:47,642 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:40:47,642 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 22:40:47,642 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:40:47,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:40:47,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1370520947, now seen corresponding path program 1 times [2021-04-28 22:40:47,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:40:47,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329366518] [2021-04-28 22:40:47,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:40:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:40:47,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:40:47,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:40:47,721 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 22:40:47,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329366518] [2021-04-28 22:40:47,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:40:47,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:40:47,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790788099] [2021-04-28 22:40:47,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:40:47,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:40:47,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:40:47,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:40:47,725 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 359 [2021-04-28 22:40:47,727 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 48 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 249.66666666666666) internal successors, (749), 3 states have internal predecessors, (749), 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 22:40:47,727 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:40:47,727 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 359 [2021-04-28 22:40:47,727 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:40:47,757 INFO L129 PetriNetUnfolder]: 10/89 cut-off events. [2021-04-28 22:40:47,757 INFO L130 PetriNetUnfolder]: For 10/16 co-relation queries the response was YES. [2021-04-28 22:40:47,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 89 events. 10/89 cut-off events. For 10/16 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 360 event pairs, 3 based on Foata normal form. 1/55 useless extension candidates. Maximal degree in co-relation 127. Up to 19 conditions per place. [2021-04-28 22:40:47,758 INFO L132 encePairwiseOnDemand]: 355/359 looper letters, 3 selfloop transitions, 3 changer transitions 0/50 dead transitions. [2021-04-28 22:40:47,759 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 50 transitions, 135 flow [2021-04-28 22:40:47,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:40:47,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:40:47,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 754 transitions. [2021-04-28 22:40:47,763 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7000928505106778 [2021-04-28 22:40:47,763 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 754 transitions. [2021-04-28 22:40:47,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 754 transitions. [2021-04-28 22:40:47,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:40:47,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 754 transitions. [2021-04-28 22:40:47,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.33333333333334) internal successors, (754), 3 states have internal predecessors, (754), 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 22:40:47,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 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 22:40:47,771 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 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 22:40:47,771 INFO L185 Difference]: Start difference. First operand has 58 places, 48 transitions, 119 flow. Second operand 3 states and 754 transitions. [2021-04-28 22:40:47,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 50 transitions, 135 flow [2021-04-28 22:40:47,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 50 transitions, 132 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 22:40:47,773 INFO L241 Difference]: Finished difference. Result has 60 places, 50 transitions, 135 flow [2021-04-28 22:40:47,774 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=135, PETRI_PLACES=60, PETRI_TRANSITIONS=50} [2021-04-28 22:40:47,774 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -86 predicate places. [2021-04-28 22:40:47,774 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:40:47,774 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 50 transitions, 135 flow [2021-04-28 22:40:47,774 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 50 transitions, 135 flow [2021-04-28 22:40:47,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 50 transitions, 135 flow [2021-04-28 22:40:47,788 INFO L129 PetriNetUnfolder]: 7/76 cut-off events. [2021-04-28 22:40:47,788 INFO L130 PetriNetUnfolder]: For 7/9 co-relation queries the response was YES. [2021-04-28 22:40:47,789 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 76 events. 7/76 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 318 event pairs, 3 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 109. Up to 15 conditions per place. [2021-04-28 22:40:47,791 INFO L146 LiptonReduction]: Number of co-enabled transitions 1486 [2021-04-28 22:40:47,931 INFO L158 LiptonReduction]: Checked pairs total: 800 [2021-04-28 22:40:47,931 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:40:47,931 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 157 [2021-04-28 22:40:47,933 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 135 flow [2021-04-28 22:40:47,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 249.66666666666666) internal successors, (749), 3 states have internal predecessors, (749), 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 22:40:47,934 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:40:47,934 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:40:47,934 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 22:40:47,934 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:40:47,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:40:47,935 INFO L82 PathProgramCache]: Analyzing trace with hash 463518869, now seen corresponding path program 1 times [2021-04-28 22:40:47,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:40:47,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587801716] [2021-04-28 22:40:47,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:40:47,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:40:47,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:40:47,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:40:47,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:40:47,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:40:48,003 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 22:40:48,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587801716] [2021-04-28 22:40:48,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:40:48,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 22:40:48,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511742607] [2021-04-28 22:40:48,004 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:40:48,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:40:48,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:40:48,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:40:48,007 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 359 [2021-04-28 22:40:48,008 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 135 flow. Second operand has 3 states, 3 states have (on average 250.0) internal successors, (750), 3 states have internal predecessors, (750), 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 22:40:48,008 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:40:48,008 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 359 [2021-04-28 22:40:48,009 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:40:48,044 INFO L129 PetriNetUnfolder]: 4/87 cut-off events. [2021-04-28 22:40:48,044 INFO L130 PetriNetUnfolder]: For 26/61 co-relation queries the response was YES. [2021-04-28 22:40:48,045 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 87 events. 4/87 cut-off events. For 26/61 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 413 event pairs, 1 based on Foata normal form. 4/54 useless extension candidates. Maximal degree in co-relation 134. Up to 15 conditions per place. [2021-04-28 22:40:48,046 INFO L132 encePairwiseOnDemand]: 356/359 looper letters, 3 selfloop transitions, 3 changer transitions 0/50 dead transitions. [2021-04-28 22:40:48,046 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 50 transitions, 147 flow [2021-04-28 22:40:48,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:40:48,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:40:48,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 753 transitions. [2021-04-28 22:40:48,087 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6991643454038997 [2021-04-28 22:40:48,087 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 753 transitions. [2021-04-28 22:40:48,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 753 transitions. [2021-04-28 22:40:48,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:40:48,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 753 transitions. [2021-04-28 22:40:48,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 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 22:40:48,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 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 22:40:48,098 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 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 22:40:48,099 INFO L185 Difference]: Start difference. First operand has 60 places, 50 transitions, 135 flow. Second operand 3 states and 753 transitions. [2021-04-28 22:40:48,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 50 transitions, 147 flow [2021-04-28 22:40:48,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 50 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 22:40:48,102 INFO L241 Difference]: Finished difference. Result has 62 places, 50 transitions, 143 flow [2021-04-28 22:40:48,102 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=143, PETRI_PLACES=62, PETRI_TRANSITIONS=50} [2021-04-28 22:40:48,102 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -84 predicate places. [2021-04-28 22:40:48,102 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:40:48,102 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 50 transitions, 143 flow [2021-04-28 22:40:48,103 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 50 transitions, 143 flow [2021-04-28 22:40:48,104 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 50 transitions, 143 flow [2021-04-28 22:40:48,117 INFO L129 PetriNetUnfolder]: 4/78 cut-off events. [2021-04-28 22:40:48,117 INFO L130 PetriNetUnfolder]: For 20/27 co-relation queries the response was YES. [2021-04-28 22:40:48,118 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 78 events. 4/78 cut-off events. For 20/27 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 334 event pairs, 2 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 114. Up to 13 conditions per place. [2021-04-28 22:40:48,120 INFO L146 LiptonReduction]: Number of co-enabled transitions 1484 [2021-04-28 22:40:48,307 INFO L158 LiptonReduction]: Checked pairs total: 800 [2021-04-28 22:40:48,308 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:40:48,308 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 206 [2021-04-28 22:40:48,312 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 50 transitions, 143 flow [2021-04-28 22:40:48,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 250.0) internal successors, (750), 3 states have internal predecessors, (750), 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 22:40:48,313 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:40:48,313 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:40:48,314 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 22:40:48,314 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:40:48,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:40:48,315 INFO L82 PathProgramCache]: Analyzing trace with hash 463520822, now seen corresponding path program 1 times [2021-04-28 22:40:48,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:40:48,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619128554] [2021-04-28 22:40:48,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:40:48,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:40:48,483 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-04-28 22:40:48,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 22:40:48,502 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-04-28 22:40:48,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 22:40:48,516 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 22:40:48,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619128554] [2021-04-28 22:40:48,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:40:48,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 22:40:48,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418372440] [2021-04-28 22:40:48,518 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:40:48,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:40:48,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:40:48,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:40:48,521 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 359 [2021-04-28 22:40:48,523 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 50 transitions, 143 flow. Second operand has 4 states, 4 states have (on average 216.75) internal successors, (867), 4 states have internal predecessors, (867), 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 22:40:48,523 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:40:48,523 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 359 [2021-04-28 22:40:48,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:40:48,680 INFO L129 PetriNetUnfolder]: 72/311 cut-off events. [2021-04-28 22:40:48,680 INFO L130 PetriNetUnfolder]: For 258/328 co-relation queries the response was YES. [2021-04-28 22:40:48,683 INFO L84 FinitePrefix]: Finished finitePrefix Result has 561 conditions, 311 events. 72/311 cut-off events. For 258/328 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2042 event pairs, 10 based on Foata normal form. 16/218 useless extension candidates. Maximal degree in co-relation 548. Up to 81 conditions per place. [2021-04-28 22:40:48,685 INFO L132 encePairwiseOnDemand]: 354/359 looper letters, 10 selfloop transitions, 4 changer transitions 0/57 dead transitions. [2021-04-28 22:40:48,685 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 57 transitions, 185 flow [2021-04-28 22:40:48,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:40:48,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:40:48,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 880 transitions. [2021-04-28 22:40:48,690 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6128133704735376 [2021-04-28 22:40:48,690 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 880 transitions. [2021-04-28 22:40:48,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 880 transitions. [2021-04-28 22:40:48,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:40:48,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 880 transitions. [2021-04-28 22:40:48,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 220.0) internal successors, (880), 4 states have internal predecessors, (880), 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 22:40:48,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 359.0) internal successors, (1795), 5 states have internal predecessors, (1795), 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 22:40:48,699 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 359.0) internal successors, (1795), 5 states have internal predecessors, (1795), 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 22:40:48,699 INFO L185 Difference]: Start difference. First operand has 62 places, 50 transitions, 143 flow. Second operand 4 states and 880 transitions. [2021-04-28 22:40:48,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 57 transitions, 185 flow [2021-04-28 22:40:48,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 57 transitions, 180 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-28 22:40:48,702 INFO L241 Difference]: Finished difference. Result has 66 places, 52 transitions, 163 flow [2021-04-28 22:40:48,702 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=163, PETRI_PLACES=66, PETRI_TRANSITIONS=52} [2021-04-28 22:40:48,703 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -80 predicate places. [2021-04-28 22:40:48,703 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:40:48,703 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 52 transitions, 163 flow [2021-04-28 22:40:48,703 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 52 transitions, 163 flow [2021-04-28 22:40:48,704 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 52 transitions, 163 flow [2021-04-28 22:40:48,731 INFO L129 PetriNetUnfolder]: 17/144 cut-off events. [2021-04-28 22:40:48,731 INFO L130 PetriNetUnfolder]: For 107/118 co-relation queries the response was YES. [2021-04-28 22:40:48,732 INFO L84 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 144 events. 17/144 cut-off events. For 107/118 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 800 event pairs, 9 based on Foata normal form. 1/82 useless extension candidates. Maximal degree in co-relation 273. Up to 33 conditions per place. [2021-04-28 22:40:48,735 INFO L146 LiptonReduction]: Number of co-enabled transitions 1578 [2021-04-28 22:40:48,919 INFO L158 LiptonReduction]: Checked pairs total: 320 [2021-04-28 22:40:48,919 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:40:48,919 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 216 [2021-04-28 22:40:48,921 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 52 transitions, 163 flow [2021-04-28 22:40:48,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 216.75) internal successors, (867), 4 states have internal predecessors, (867), 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 22:40:48,922 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:40:48,922 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:40:48,922 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 22:40:48,923 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:40:48,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:40:48,923 INFO L82 PathProgramCache]: Analyzing trace with hash 424481557, now seen corresponding path program 1 times [2021-04-28 22:40:48,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:40:48,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949090334] [2021-04-28 22:40:48,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:40:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:40:49,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:40:49,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:40:49,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:40:49,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 22:40:49,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:40:49,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-04-28 22:40:49,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:40:49,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-04-28 22:40:49,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:40:49,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-04-28 22:40:49,138 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 22:40:49,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949090334] [2021-04-28 22:40:49,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:40:49,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 22:40:49,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91868445] [2021-04-28 22:40:49,140 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 22:40:49,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:40:49,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 22:40:49,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-28 22:40:49,143 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 359 [2021-04-28 22:40:49,145 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 52 transitions, 163 flow. Second operand has 6 states, 6 states have (on average 218.0) internal successors, (1308), 6 states have internal predecessors, (1308), 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 22:40:49,146 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:40:49,146 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 359 [2021-04-28 22:40:49,146 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:40:49,374 INFO L129 PetriNetUnfolder]: 87/362 cut-off events. [2021-04-28 22:40:49,374 INFO L130 PetriNetUnfolder]: For 263/290 co-relation queries the response was YES. [2021-04-28 22:40:49,377 INFO L84 FinitePrefix]: Finished finitePrefix Result has 814 conditions, 362 events. 87/362 cut-off events. For 263/290 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2497 event pairs, 7 based on Foata normal form. 5/247 useless extension candidates. Maximal degree in co-relation 798. Up to 93 conditions per place. [2021-04-28 22:40:49,380 INFO L132 encePairwiseOnDemand]: 352/359 looper letters, 9 selfloop transitions, 12 changer transitions 0/64 dead transitions. [2021-04-28 22:40:49,380 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 64 transitions, 245 flow [2021-04-28 22:40:49,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 22:40:49,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 22:40:49,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1323 transitions. [2021-04-28 22:40:49,387 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6142061281337048 [2021-04-28 22:40:49,387 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1323 transitions. [2021-04-28 22:40:49,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1323 transitions. [2021-04-28 22:40:49,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:40:49,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1323 transitions. [2021-04-28 22:40:49,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 220.5) internal successors, (1323), 6 states have internal predecessors, (1323), 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 22:40:49,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 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 22:40:49,398 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 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 22:40:49,398 INFO L185 Difference]: Start difference. First operand has 66 places, 52 transitions, 163 flow. Second operand 6 states and 1323 transitions. [2021-04-28 22:40:49,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 64 transitions, 245 flow [2021-04-28 22:40:49,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 64 transitions, 237 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 22:40:49,402 INFO L241 Difference]: Finished difference. Result has 73 places, 60 transitions, 240 flow [2021-04-28 22:40:49,402 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=240, PETRI_PLACES=73, PETRI_TRANSITIONS=60} [2021-04-28 22:40:49,402 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -73 predicate places. [2021-04-28 22:40:49,402 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:40:49,403 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 60 transitions, 240 flow [2021-04-28 22:40:49,403 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 60 transitions, 240 flow [2021-04-28 22:40:49,404 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 60 transitions, 240 flow [2021-04-28 22:40:49,454 INFO L129 PetriNetUnfolder]: 55/272 cut-off events. [2021-04-28 22:40:49,454 INFO L130 PetriNetUnfolder]: For 255/275 co-relation queries the response was YES. [2021-04-28 22:40:49,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 677 conditions, 272 events. 55/272 cut-off events. For 255/275 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1726 event pairs, 14 based on Foata normal form. 9/176 useless extension candidates. Maximal degree in co-relation 659. Up to 76 conditions per place. [2021-04-28 22:40:49,464 INFO L146 LiptonReduction]: Number of co-enabled transitions 1934 [2021-04-28 22:40:49,470 INFO L158 LiptonReduction]: Checked pairs total: 362 [2021-04-28 22:40:49,470 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:40:49,470 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 68 [2021-04-28 22:40:49,472 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 60 transitions, 240 flow [2021-04-28 22:40:49,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 218.0) internal successors, (1308), 6 states have internal predecessors, (1308), 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 22:40:49,473 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:40:49,473 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:40:49,473 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 22:40:49,473 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:40:49,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:40:49,474 INFO L82 PathProgramCache]: Analyzing trace with hash -75783987, now seen corresponding path program 2 times [2021-04-28 22:40:49,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:40:49,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363461518] [2021-04-28 22:40:49,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:40:49,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:40:49,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:40:49,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 22:40:49,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:40:49,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 22:40:49,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:40:49,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 22:40:49,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:40:49,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 22:40:49,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:40:49,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 22:40:49,712 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 22:40:49,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363461518] [2021-04-28 22:40:49,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:40:49,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 22:40:49,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900302498] [2021-04-28 22:40:49,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 22:40:49,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:40:49,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 22:40:49,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-04-28 22:40:49,718 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 359 [2021-04-28 22:40:49,720 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 60 transitions, 240 flow. Second operand has 7 states, 7 states have (on average 214.85714285714286) internal successors, (1504), 7 states have internal predecessors, (1504), 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 22:40:49,720 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:40:49,720 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 359 [2021-04-28 22:40:49,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:40:50,003 INFO L129 PetriNetUnfolder]: 80/345 cut-off events. [2021-04-28 22:40:50,004 INFO L130 PetriNetUnfolder]: For 392/424 co-relation queries the response was YES. [2021-04-28 22:40:50,007 INFO L84 FinitePrefix]: Finished finitePrefix Result has 983 conditions, 345 events. 80/345 cut-off events. For 392/424 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2338 event pairs, 3 based on Foata normal form. 9/240 useless extension candidates. Maximal degree in co-relation 963. Up to 79 conditions per place. [2021-04-28 22:40:50,010 INFO L132 encePairwiseOnDemand]: 353/359 looper letters, 12 selfloop transitions, 11 changer transitions 0/66 dead transitions. [2021-04-28 22:40:50,010 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 66 transitions, 323 flow [2021-04-28 22:40:50,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:40:50,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:40:50,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1087 transitions. [2021-04-28 22:40:50,016 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6055710306406685 [2021-04-28 22:40:50,016 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1087 transitions. [2021-04-28 22:40:50,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1087 transitions. [2021-04-28 22:40:50,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:40:50,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1087 transitions. [2021-04-28 22:40:50,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 217.4) internal successors, (1087), 5 states have internal predecessors, (1087), 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 22:40:50,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 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 22:40:50,024 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 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 22:40:50,024 INFO L185 Difference]: Start difference. First operand has 73 places, 60 transitions, 240 flow. Second operand 5 states and 1087 transitions. [2021-04-28 22:40:50,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 66 transitions, 323 flow [2021-04-28 22:40:50,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 66 transitions, 316 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-28 22:40:50,029 INFO L241 Difference]: Finished difference. Result has 78 places, 62 transitions, 286 flow [2021-04-28 22:40:50,029 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=286, PETRI_PLACES=78, PETRI_TRANSITIONS=62} [2021-04-28 22:40:50,030 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -68 predicate places. [2021-04-28 22:40:50,030 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:40:50,030 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 62 transitions, 286 flow [2021-04-28 22:40:50,030 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 62 transitions, 286 flow [2021-04-28 22:40:50,031 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 78 places, 62 transitions, 286 flow [2021-04-28 22:40:50,074 INFO L129 PetriNetUnfolder]: 46/256 cut-off events. [2021-04-28 22:40:50,074 INFO L130 PetriNetUnfolder]: For 353/374 co-relation queries the response was YES. [2021-04-28 22:40:50,076 INFO L84 FinitePrefix]: Finished finitePrefix Result has 675 conditions, 256 events. 46/256 cut-off events. For 353/374 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1613 event pairs, 10 based on Foata normal form. 10/170 useless extension candidates. Maximal degree in co-relation 654. Up to 59 conditions per place. [2021-04-28 22:40:50,084 INFO L146 LiptonReduction]: Number of co-enabled transitions 2022 [2021-04-28 22:40:50,088 INFO L158 LiptonReduction]: Checked pairs total: 404 [2021-04-28 22:40:50,089 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:40:50,089 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 59 [2021-04-28 22:40:50,091 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 62 transitions, 286 flow [2021-04-28 22:40:50,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 214.85714285714286) internal successors, (1504), 7 states have internal predecessors, (1504), 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 22:40:50,092 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:40:50,092 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:40:50,092 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 22:40:50,092 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:40:50,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:40:50,093 INFO L82 PathProgramCache]: Analyzing trace with hash 867729919, now seen corresponding path program 1 times [2021-04-28 22:40:50,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:40:50,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301168357] [2021-04-28 22:40:50,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:40:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:40:50,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:40:50,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:40:50,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:40:50,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 22:40:50,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:40:50,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:40:50,186 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 22:40:50,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301168357] [2021-04-28 22:40:50,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:40:50,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:40:50,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019719473] [2021-04-28 22:40:50,187 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:40:50,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:40:50,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:40:50,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:40:50,190 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 359 [2021-04-28 22:40:50,191 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 62 transitions, 286 flow. Second operand has 4 states, 4 states have (on average 267.75) internal successors, (1071), 4 states have internal predecessors, (1071), 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 22:40:50,191 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:40:50,191 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 359 [2021-04-28 22:40:50,191 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:40:58,671 INFO L129 PetriNetUnfolder]: 38497/56514 cut-off events. [2021-04-28 22:40:58,671 INFO L130 PetriNetUnfolder]: For 22219/31816 co-relation queries the response was YES. [2021-04-28 22:40:58,970 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121657 conditions, 56514 events. 38497/56514 cut-off events. For 22219/31816 co-relation queries the response was YES. Maximal size of possible extension queue 9654. Compared 511600 event pairs, 19380 based on Foata normal form. 1335/17196 useless extension candidates. Maximal degree in co-relation 121634. Up to 36307 conditions per place. [2021-04-28 22:40:59,337 INFO L132 encePairwiseOnDemand]: 339/359 looper letters, 36 selfloop transitions, 32 changer transitions 0/105 dead transitions. [2021-04-28 22:40:59,338 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 105 transitions, 508 flow [2021-04-28 22:40:59,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:40:59,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:40:59,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1401 transitions. [2021-04-28 22:40:59,345 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7805013927576602 [2021-04-28 22:40:59,345 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1401 transitions. [2021-04-28 22:40:59,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1401 transitions. [2021-04-28 22:40:59,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:40:59,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1401 transitions. [2021-04-28 22:40:59,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 280.2) internal successors, (1401), 5 states have internal predecessors, (1401), 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 22:40:59,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 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 22:40:59,357 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 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 22:40:59,357 INFO L185 Difference]: Start difference. First operand has 78 places, 62 transitions, 286 flow. Second operand 5 states and 1401 transitions. [2021-04-28 22:40:59,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 105 transitions, 508 flow [2021-04-28 22:40:59,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 105 transitions, 492 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-04-28 22:40:59,449 INFO L241 Difference]: Finished difference. Result has 83 places, 92 transitions, 520 flow [2021-04-28 22:40:59,450 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=520, PETRI_PLACES=83, PETRI_TRANSITIONS=92} [2021-04-28 22:40:59,450 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -63 predicate places. [2021-04-28 22:40:59,450 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:40:59,450 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 92 transitions, 520 flow [2021-04-28 22:40:59,451 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 92 transitions, 520 flow [2021-04-28 22:40:59,452 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 92 transitions, 520 flow [2021-04-28 22:41:04,244 INFO L129 PetriNetUnfolder]: 33477/48659 cut-off events. [2021-04-28 22:41:04,245 INFO L130 PetriNetUnfolder]: For 28454/144417 co-relation queries the response was YES. [2021-04-28 22:41:04,636 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146189 conditions, 48659 events. 33477/48659 cut-off events. For 28454/144417 co-relation queries the response was YES. Maximal size of possible extension queue 9042. Compared 437539 event pairs, 18037 based on Foata normal form. 68/14188 useless extension candidates. Maximal degree in co-relation 146164. Up to 45571 conditions per place. [2021-04-28 22:41:05,282 INFO L146 LiptonReduction]: Number of co-enabled transitions 2992 [2021-04-28 22:41:05,386 INFO L158 LiptonReduction]: Checked pairs total: 392 [2021-04-28 22:41:05,386 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:41:05,387 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5937 [2021-04-28 22:41:05,389 INFO L480 AbstractCegarLoop]: Abstraction has has 83 places, 92 transitions, 520 flow [2021-04-28 22:41:05,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 267.75) internal successors, (1071), 4 states have internal predecessors, (1071), 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 22:41:05,390 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:41:05,390 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:41:05,390 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 22:41:05,390 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:41:05,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:41:05,391 INFO L82 PathProgramCache]: Analyzing trace with hash 392094291, now seen corresponding path program 1 times [2021-04-28 22:41:05,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:41:05,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678896525] [2021-04-28 22:41:05,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:41:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:41:05,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:41:05,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:41:05,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:41:05,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:41:05,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:41:05,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 22:41:05,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:41:05,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:41:05,557 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 22:41:05,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678896525] [2021-04-28 22:41:05,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:41:05,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 22:41:05,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395585141] [2021-04-28 22:41:05,558 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:41:05,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:41:05,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:41:05,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:41:05,561 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 359 [2021-04-28 22:41:05,563 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 92 transitions, 520 flow. Second operand has 5 states, 5 states have (on average 267.8) internal successors, (1339), 5 states have internal predecessors, (1339), 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 22:41:05,563 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:41:05,564 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 359 [2021-04-28 22:41:05,564 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:41:12,704 INFO L129 PetriNetUnfolder]: 41692/64080 cut-off events. [2021-04-28 22:41:12,705 INFO L130 PetriNetUnfolder]: For 53386/687383 co-relation queries the response was YES. [2021-04-28 22:41:12,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 250518 conditions, 64080 events. 41692/64080 cut-off events. For 53386/687383 co-relation queries the response was YES. Maximal size of possible extension queue 11787. Compared 602357 event pairs, 7290 based on Foata normal form. 1502/21564 useless extension candidates. Maximal degree in co-relation 250491. Up to 58813 conditions per place. [2021-04-28 22:41:13,247 INFO L132 encePairwiseOnDemand]: 339/359 looper letters, 37 selfloop transitions, 62 changer transitions 0/136 dead transitions. [2021-04-28 22:41:13,247 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 136 transitions, 963 flow [2021-04-28 22:41:13,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 22:41:13,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 22:41:13,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1965 transitions. [2021-04-28 22:41:13,255 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.781933943493832 [2021-04-28 22:41:13,255 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1965 transitions. [2021-04-28 22:41:13,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1965 transitions. [2021-04-28 22:41:13,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:41:13,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1965 transitions. [2021-04-28 22:41:13,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 280.7142857142857) internal successors, (1965), 7 states have internal predecessors, (1965), 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 22:41:13,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 359.0) internal successors, (2872), 8 states have internal predecessors, (2872), 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 22:41:13,268 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 359.0) internal successors, (2872), 8 states have internal predecessors, (2872), 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 22:41:13,268 INFO L185 Difference]: Start difference. First operand has 83 places, 92 transitions, 520 flow. Second operand 7 states and 1965 transitions. [2021-04-28 22:41:13,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 136 transitions, 963 flow [2021-04-28 22:41:13,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 136 transitions, 963 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 22:41:13,392 INFO L241 Difference]: Finished difference. Result has 92 places, 122 transitions, 962 flow [2021-04-28 22:41:13,392 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=520, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=962, PETRI_PLACES=92, PETRI_TRANSITIONS=122} [2021-04-28 22:41:13,392 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -54 predicate places. [2021-04-28 22:41:13,392 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:41:13,392 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 122 transitions, 962 flow [2021-04-28 22:41:13,393 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 122 transitions, 962 flow [2021-04-28 22:41:13,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 122 transitions, 962 flow [2021-04-28 22:41:19,255 INFO L129 PetriNetUnfolder]: 35865/55095 cut-off events. [2021-04-28 22:41:19,255 INFO L130 PetriNetUnfolder]: For 153795/451801 co-relation queries the response was YES. [2021-04-28 22:41:19,577 INFO L84 FinitePrefix]: Finished finitePrefix Result has 265915 conditions, 55095 events. 35865/55095 cut-off events. For 153795/451801 co-relation queries the response was YES. Maximal size of possible extension queue 10431. Compared 526952 event pairs, 7594 based on Foata normal form. 55/16428 useless extension candidates. Maximal degree in co-relation 265885. Up to 51919 conditions per place. [2021-04-28 22:41:20,178 INFO L146 LiptonReduction]: Number of co-enabled transitions 4116 [2021-04-28 22:41:20,250 INFO L158 LiptonReduction]: Checked pairs total: 532 [2021-04-28 22:41:20,250 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:41:20,251 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6859 [2021-04-28 22:41:20,253 INFO L480 AbstractCegarLoop]: Abstraction has has 92 places, 122 transitions, 962 flow [2021-04-28 22:41:20,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 267.8) internal successors, (1339), 5 states have internal predecessors, (1339), 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 22:41:20,254 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:41:20,254 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:41:20,254 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 22:41:20,254 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:41:20,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:41:20,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1349150078, now seen corresponding path program 1 times [2021-04-28 22:41:20,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:41:20,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189236818] [2021-04-28 22:41:20,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:41:20,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:41:20,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:41:20,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:41:20,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:41:20,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:41:20,313 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 22:41:20,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189236818] [2021-04-28 22:41:20,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:41:20,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 22:41:20,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630638863] [2021-04-28 22:41:20,314 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:41:20,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:41:20,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:41:20,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:41:20,316 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 359 [2021-04-28 22:41:20,317 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 122 transitions, 962 flow. Second operand has 3 states, 3 states have (on average 247.0) internal successors, (741), 3 states have internal predecessors, (741), 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 22:41:20,318 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:41:20,318 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 359 [2021-04-28 22:41:20,318 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:41:32,166 INFO L129 PetriNetUnfolder]: 67092/101784 cut-off events. [2021-04-28 22:41:32,166 INFO L130 PetriNetUnfolder]: For 357139/1181379 co-relation queries the response was YES. [2021-04-28 22:41:32,751 INFO L84 FinitePrefix]: Finished finitePrefix Result has 491243 conditions, 101784 events. 67092/101784 cut-off events. For 357139/1181379 co-relation queries the response was YES. Maximal size of possible extension queue 18570. Compared 992764 event pairs, 13887 based on Foata normal form. 289/30202 useless extension candidates. Maximal degree in co-relation 491211. Up to 96712 conditions per place. [2021-04-28 22:41:33,121 INFO L132 encePairwiseOnDemand]: 356/359 looper letters, 3 selfloop transitions, 3 changer transitions 0/122 dead transitions. [2021-04-28 22:41:33,121 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 122 transitions, 974 flow [2021-04-28 22:41:33,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:41:33,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:41:33,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 744 transitions. [2021-04-28 22:41:33,126 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6908077994428969 [2021-04-28 22:41:33,126 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 744 transitions. [2021-04-28 22:41:33,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 744 transitions. [2021-04-28 22:41:33,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:41:33,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 744 transitions. [2021-04-28 22:41:33,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 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 22:41:33,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 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 22:41:33,133 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 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 22:41:33,133 INFO L185 Difference]: Start difference. First operand has 92 places, 122 transitions, 962 flow. Second operand 3 states and 744 transitions. [2021-04-28 22:41:33,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 122 transitions, 974 flow [2021-04-28 22:41:37,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 122 transitions, 816 flow, removed 53 selfloop flow, removed 3 redundant places. [2021-04-28 22:41:37,838 INFO L241 Difference]: Finished difference. Result has 92 places, 122 transitions, 815 flow [2021-04-28 22:41:37,838 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=804, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=815, PETRI_PLACES=92, PETRI_TRANSITIONS=122} [2021-04-28 22:41:37,838 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -54 predicate places. [2021-04-28 22:41:37,839 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:41:37,839 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 122 transitions, 815 flow [2021-04-28 22:41:37,839 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 122 transitions, 815 flow [2021-04-28 22:41:37,840 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 122 transitions, 815 flow [2021-04-28 22:41:48,230 INFO L129 PetriNetUnfolder]: 66008/99832 cut-off events. [2021-04-28 22:41:48,230 INFO L130 PetriNetUnfolder]: For 171237/339294 co-relation queries the response was YES. [2021-04-28 22:41:48,787 INFO L84 FinitePrefix]: Finished finitePrefix Result has 459387 conditions, 99832 events. 66008/99832 cut-off events. For 171237/339294 co-relation queries the response was YES. Maximal size of possible extension queue 18321. Compared 995890 event pairs, 14535 based on Foata normal form. 99/29280 useless extension candidates. Maximal degree in co-relation 459357. Up to 85669 conditions per place. [2021-04-28 22:41:50,150 INFO L146 LiptonReduction]: Number of co-enabled transitions 4114 [2021-04-28 22:41:50,506 INFO L158 LiptonReduction]: Checked pairs total: 532 [2021-04-28 22:41:50,506 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:41:50,507 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12668 [2021-04-28 22:41:50,508 INFO L480 AbstractCegarLoop]: Abstraction has has 92 places, 122 transitions, 815 flow [2021-04-28 22:41:50,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 247.0) internal successors, (741), 3 states have internal predecessors, (741), 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 22:41:50,509 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:41:50,509 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:41:50,509 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 22:41:50,509 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:41:50,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:41:50,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1751326960, now seen corresponding path program 1 times [2021-04-28 22:41:50,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:41:50,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556146783] [2021-04-28 22:41:50,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:41:50,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:41:50,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:41:50,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:41:50,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:41:50,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:41:50,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:41:50,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:41:50,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:41:50,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 22:41:50,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:41:50,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:41:50,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:41:50,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556146783] [2021-04-28 22:41:50,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:41:50,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 22:41:50,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535933371] [2021-04-28 22:41:50,616 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 22:41:50,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:41:50,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 22:41:50,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 22:41:50,619 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 359 [2021-04-28 22:41:50,621 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 122 transitions, 815 flow. Second operand has 6 states, 6 states have (on average 267.8333333333333) internal successors, (1607), 6 states have internal predecessors, (1607), 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 22:41:50,621 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:41:50,621 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 359 [2021-04-28 22:41:50,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:42:04,411 INFO L129 PetriNetUnfolder]: 68076/108045 cut-off events. [2021-04-28 22:42:04,412 INFO L130 PetriNetUnfolder]: For 189961/1265552 co-relation queries the response was YES. [2021-04-28 22:42:05,024 INFO L84 FinitePrefix]: Finished finitePrefix Result has 595125 conditions, 108045 events. 68076/108045 cut-off events. For 189961/1265552 co-relation queries the response was YES. Maximal size of possible extension queue 18951. Compared 1100120 event pairs, 1944 based on Foata normal form. 2358/35138 useless extension candidates. Maximal degree in co-relation 595093. Up to 91360 conditions per place. [2021-04-28 22:42:05,332 INFO L132 encePairwiseOnDemand]: 339/359 looper letters, 24 selfloop transitions, 92 changer transitions 12/165 dead transitions. [2021-04-28 22:42:05,333 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 165 transitions, 1443 flow [2021-04-28 22:42:05,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 22:42:05,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 22:42:05,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2529 transitions. [2021-04-28 22:42:05,340 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7827298050139275 [2021-04-28 22:42:05,340 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2529 transitions. [2021-04-28 22:42:05,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2529 transitions. [2021-04-28 22:42:05,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:42:05,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2529 transitions. [2021-04-28 22:42:05,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 281.0) internal successors, (2529), 9 states have internal predecessors, (2529), 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 22:42:05,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 359.0) internal successors, (3590), 10 states have internal predecessors, (3590), 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 22:42:05,356 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 359.0) internal successors, (3590), 10 states have internal predecessors, (3590), 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 22:42:05,356 INFO L185 Difference]: Start difference. First operand has 92 places, 122 transitions, 815 flow. Second operand 9 states and 2529 transitions. [2021-04-28 22:42:05,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 165 transitions, 1443 flow [2021-04-28 22:42:09,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 165 transitions, 1438 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-28 22:42:09,753 INFO L241 Difference]: Finished difference. Result has 102 places, 150 transitions, 1357 flow [2021-04-28 22:42:09,753 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=779, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1357, PETRI_PLACES=102, PETRI_TRANSITIONS=150} [2021-04-28 22:42:09,754 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -44 predicate places. [2021-04-28 22:42:09,755 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:42:09,756 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 150 transitions, 1357 flow [2021-04-28 22:42:09,756 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 150 transitions, 1357 flow [2021-04-28 22:42:09,757 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 150 transitions, 1357 flow [2021-04-28 22:42:19,362 INFO L129 PetriNetUnfolder]: 46941/80103 cut-off events. [2021-04-28 22:42:19,362 INFO L130 PetriNetUnfolder]: For 393067/850632 co-relation queries the response was YES. [2021-04-28 22:42:19,926 INFO L84 FinitePrefix]: Finished finitePrefix Result has 485360 conditions, 80103 events. 46941/80103 cut-off events. For 393067/850632 co-relation queries the response was YES. Maximal size of possible extension queue 17601. Compared 942255 event pairs, 2268 based on Foata normal form. 19/22659 useless extension candidates. Maximal degree in co-relation 485326. Up to 66385 conditions per place. [2021-04-28 22:42:21,051 INFO L146 LiptonReduction]: Number of co-enabled transitions 4570 [2021-04-28 22:42:21,103 INFO L158 LiptonReduction]: Checked pairs total: 616 [2021-04-28 22:42:21,103 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:42:21,103 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11348 [2021-04-28 22:42:21,104 INFO L480 AbstractCegarLoop]: Abstraction has has 102 places, 150 transitions, 1357 flow [2021-04-28 22:42:21,105 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 267.8333333333333) internal successors, (1607), 6 states have internal predecessors, (1607), 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 22:42:21,105 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:42:21,105 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:42:21,105 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 22:42:21,105 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:42:21,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:42:21,106 INFO L82 PathProgramCache]: Analyzing trace with hash 885747158, now seen corresponding path program 1 times [2021-04-28 22:42:21,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:42:21,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104914923] [2021-04-28 22:42:21,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:42:21,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:42:21,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:42:21,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:42:21,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:42:21,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:42:21,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:42:21,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:42:21,167 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 22:42:21,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104914923] [2021-04-28 22:42:21,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:42:21,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:42:21,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307015375] [2021-04-28 22:42:21,168 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:42:21,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:42:21,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:42:21,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:42:21,171 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 359 [2021-04-28 22:42:21,172 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 150 transitions, 1357 flow. Second operand has 4 states, 4 states have (on average 249.0) internal successors, (996), 4 states have internal predecessors, (996), 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 22:42:21,172 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:42:21,173 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 359 [2021-04-28 22:42:21,173 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:42:42,762 INFO L129 PetriNetUnfolder]: 90468/153571 cut-off events. [2021-04-28 22:42:42,763 INFO L130 PetriNetUnfolder]: For 909549/2244853 co-relation queries the response was YES. [2021-04-28 22:42:43,813 INFO L84 FinitePrefix]: Finished finitePrefix Result has 930307 conditions, 153571 events. 90468/153571 cut-off events. For 909549/2244853 co-relation queries the response was YES. Maximal size of possible extension queue 33996. Compared 1850296 event pairs, 4266 based on Foata normal form. 290/43349 useless extension candidates. Maximal degree in co-relation 930271. Up to 127450 conditions per place. [2021-04-28 22:42:44,221 INFO L132 encePairwiseOnDemand]: 356/359 looper letters, 4 selfloop transitions, 2 changer transitions 1/152 dead transitions. [2021-04-28 22:42:44,221 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 152 transitions, 1387 flow [2021-04-28 22:42:44,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:42:44,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:42:44,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 999 transitions. [2021-04-28 22:42:44,226 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6956824512534819 [2021-04-28 22:42:44,226 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 999 transitions. [2021-04-28 22:42:44,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 999 transitions. [2021-04-28 22:42:44,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:42:44,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 999 transitions. [2021-04-28 22:42:44,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 249.75) internal successors, (999), 4 states have internal predecessors, (999), 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 22:42:44,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 359.0) internal successors, (1795), 5 states have internal predecessors, (1795), 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 22:42:44,233 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 359.0) internal successors, (1795), 5 states have internal predecessors, (1795), 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 22:42:44,233 INFO L185 Difference]: Start difference. First operand has 102 places, 150 transitions, 1357 flow. Second operand 4 states and 999 transitions. [2021-04-28 22:42:44,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 152 transitions, 1387 flow Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown