/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/mix044_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 21:06:17,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 21:06:17,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 21:06:17,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 21:06:17,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 21:06:17,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 21:06:17,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 21:06:17,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 21:06:17,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 21:06:17,185 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 21:06:17,186 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 21:06:17,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 21:06:17,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 21:06:17,189 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 21:06:17,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 21:06:17,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 21:06:17,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 21:06:17,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 21:06:17,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 21:06:17,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 21:06:17,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 21:06:17,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 21:06:17,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 21:06:17,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 21:06:17,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 21:06:17,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 21:06:17,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 21:06:17,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 21:06:17,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 21:06:17,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 21:06:17,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 21:06:17,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 21:06:17,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 21:06:17,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 21:06:17,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 21:06:17,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 21:06:17,223 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 21:06:17,251 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 21:06:17,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 21:06:17,253 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 21:06:17,253 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 21:06:17,254 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 21:06:17,254 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 21:06:17,254 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 21:06:17,255 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 21:06:17,255 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 21:06:17,255 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 21:06:17,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 21:06:17,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 21:06:17,256 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 21:06:17,256 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 21:06:17,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 21:06:17,257 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 21:06:17,257 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 21:06:17,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 21:06:17,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 21:06:17,258 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 21:06:17,259 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 21:06:17,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 21:06:17,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 21:06:17,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 21:06:17,260 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 21:06:17,260 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 21:06:17,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 21:06:17,261 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 21:06:17,261 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 21:06:17,261 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 21:06:17,261 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 21:06:17,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 21:06:17,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 21:06:17,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 21:06:17,701 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 21:06:17,702 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 21:06:17,703 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix044_power.opt.i [2021-04-28 21:06:17,789 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c2225ebb/9a6f6f8cf24240d39b4d9fcda13b36a8/FLAGdd446b54c [2021-04-28 21:06:18,473 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 21:06:18,473 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix044_power.opt.i [2021-04-28 21:06:18,502 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c2225ebb/9a6f6f8cf24240d39b4d9fcda13b36a8/FLAGdd446b54c [2021-04-28 21:06:18,766 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c2225ebb/9a6f6f8cf24240d39b4d9fcda13b36a8 [2021-04-28 21:06:18,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 21:06:18,830 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 21:06:18,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 21:06:18,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 21:06:18,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 21:06:18,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 09:06:18" (1/1) ... [2021-04-28 21:06:18,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79e30980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:06:18, skipping insertion in model container [2021-04-28 21:06:18,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 09:06:18" (1/1) ... [2021-04-28 21:06:18,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 21:06:18,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 21:06:19,192 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/mix044_power.opt.i[950,963] [2021-04-28 21:06:19,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 21:06:19,422 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 21:06:19,436 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/mix044_power.opt.i[950,963] [2021-04-28 21:06:19,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 21:06:19,632 INFO L208 MainTranslator]: Completed translation [2021-04-28 21:06:19,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:06:19 WrapperNode [2021-04-28 21:06:19,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 21:06:19,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 21:06:19,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 21:06:19,637 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 21:06:19,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:06:19" (1/1) ... [2021-04-28 21:06:19,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:06:19" (1/1) ... [2021-04-28 21:06:19,712 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 21:06:19,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 21:06:19,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 21:06:19,713 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 21:06:19,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:06:19" (1/1) ... [2021-04-28 21:06:19,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:06:19" (1/1) ... [2021-04-28 21:06:19,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:06:19" (1/1) ... [2021-04-28 21:06:19,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:06:19" (1/1) ... [2021-04-28 21:06:19,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:06:19" (1/1) ... [2021-04-28 21:06:19,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:06:19" (1/1) ... [2021-04-28 21:06:19,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:06:19" (1/1) ... [2021-04-28 21:06:19,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 21:06:19,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 21:06:19,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 21:06:19,763 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 21:06:19,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:06:19" (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 21:06:19,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 21:06:19,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 21:06:19,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 21:06:19,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 21:06:19,878 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 21:06:19,879 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 21:06:19,880 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 21:06:19,880 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 21:06:19,881 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 21:06:19,881 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 21:06:19,881 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 21:06:19,881 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 21:06:19,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 21:06:19,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 21:06:19,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 21:06:19,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 21:06:19,884 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 21:06:22,116 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 21:06:22,116 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 21:06:22,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:06:22 BoogieIcfgContainer [2021-04-28 21:06:22,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 21:06:22,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 21:06:22,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 21:06:22,124 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 21:06:22,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 09:06:18" (1/3) ... [2021-04-28 21:06:22,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758245b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:06:22, skipping insertion in model container [2021-04-28 21:06:22,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:06:19" (2/3) ... [2021-04-28 21:06:22,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758245b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:06:22, skipping insertion in model container [2021-04-28 21:06:22,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:06:22" (3/3) ... [2021-04-28 21:06:22,128 INFO L111 eAbstractionObserver]: Analyzing ICFG mix044_power.opt.i [2021-04-28 21:06:22,135 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 21:06:22,141 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 21:06:22,142 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 21:06:22,179 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,180 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,180 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,181 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,181 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,181 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,181 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,182 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,182 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,182 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,182 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,182 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,183 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,183 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,183 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,183 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,183 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,184 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,185 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,185 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,185 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,185 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,186 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,186 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,186 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,186 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,186 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,187 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,187 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,187 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,187 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,187 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,188 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,188 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,188 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,189 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,189 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,189 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,189 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,189 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,189 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,190 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,190 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,190 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,191 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,191 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,191 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,192 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,192 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,192 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,192 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,192 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,192 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,193 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,193 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,193 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,193 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,193 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,194 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,194 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,197 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,198 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,198 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,198 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,198 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,198 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,198 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,198 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,199 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,199 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,199 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,200 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,200 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,200 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,200 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,201 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,201 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,201 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,201 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,204 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,204 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,204 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,204 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,206 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,207 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,207 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,207 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,209 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,209 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,209 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,209 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,210 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,210 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,210 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,210 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,210 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,211 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,212 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,213 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,213 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,213 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,213 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,214 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,214 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,214 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,214 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,214 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,215 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,215 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:06:22,216 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 21:06:22,240 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 21:06:22,267 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 21:06:22,267 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 21:06:22,267 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 21:06:22,267 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 21:06:22,267 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 21:06:22,268 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 21:06:22,268 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 21:06:22,268 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 21:06:22,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 128 places, 117 transitions, 254 flow [2021-04-28 21:06:22,341 INFO L129 PetriNetUnfolder]: 2/113 cut-off events. [2021-04-28 21:06:22,341 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:06:22,346 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-04-28 21:06:22,346 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 117 transitions, 254 flow [2021-04-28 21:06:22,353 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 113 transitions, 238 flow [2021-04-28 21:06:22,355 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:06:22,371 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 113 transitions, 238 flow [2021-04-28 21:06:22,375 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 113 transitions, 238 flow [2021-04-28 21:06:22,378 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 113 transitions, 238 flow [2021-04-28 21:06:22,407 INFO L129 PetriNetUnfolder]: 2/113 cut-off events. [2021-04-28 21:06:22,407 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:06:22,408 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-04-28 21:06:22,413 INFO L146 LiptonReduction]: Number of co-enabled transitions 2598 [2021-04-28 21:06:26,452 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 21:06:26,572 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:06:27,129 WARN L205 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2021-04-28 21:06:27,342 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 21:06:28,533 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 21:06:29,629 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 188 DAG size of output: 187 [2021-04-28 21:06:32,168 WARN L205 SmtUtils]: Spent 2.54 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 21:06:33,235 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:06:33,820 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-04-28 21:06:33,965 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-04-28 21:06:37,324 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 232 DAG size of output: 192 [2021-04-28 21:06:38,419 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2021-04-28 21:06:41,067 WARN L205 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 21:06:42,240 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 21:06:43,524 WARN L205 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 230 DAG size of output: 189 [2021-04-28 21:06:44,086 WARN L205 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 21:06:46,802 WARN L205 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 21:06:48,011 WARN L205 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:06:49,406 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 234 DAG size of output: 194 [2021-04-28 21:06:50,027 WARN L205 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2021-04-28 21:06:52,875 WARN L205 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 318 DAG size of output: 274 [2021-04-28 21:06:54,144 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 271 [2021-04-28 21:06:58,998 WARN L205 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 232 DAG size of output: 192 [2021-04-28 21:06:59,737 WARN L205 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 21:07:02,914 WARN L205 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 21:07:04,293 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 21:07:05,909 WARN L205 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 233 DAG size of output: 193 [2021-04-28 21:07:06,610 WARN L205 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2021-04-28 21:07:09,897 WARN L205 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 21:07:11,456 WARN L205 SmtUtils]: Spent 1.56 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 21:07:13,252 WARN L205 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 233 DAG size of output: 193 [2021-04-28 21:07:14,815 WARN L205 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 191 DAG size of output: 190 [2021-04-28 21:07:18,559 WARN L205 SmtUtils]: Spent 3.74 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 21:07:20,217 WARN L205 SmtUtils]: Spent 1.66 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 21:07:21,959 WARN L205 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 21:07:22,760 WARN L205 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 21:07:26,304 WARN L205 SmtUtils]: Spent 3.54 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 21:07:27,949 WARN L205 SmtUtils]: Spent 1.64 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:07:29,905 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:07:30,015 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:07:30,130 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:07:30,241 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:07:30,734 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:07:30,855 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:07:30,976 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:07:31,094 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:07:32,304 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:07:32,413 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:07:32,712 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:07:32,818 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:07:32,924 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:07:33,027 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:07:35,043 WARN L205 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 233 DAG size of output: 192 [2021-04-28 21:07:35,914 WARN L205 SmtUtils]: Spent 868.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 21:07:39,865 WARN L205 SmtUtils]: Spent 3.95 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 21:07:41,622 WARN L205 SmtUtils]: Spent 1.75 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 21:07:43,503 WARN L205 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 232 DAG size of output: 192 [2021-04-28 21:07:44,354 WARN L205 SmtUtils]: Spent 847.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 21:07:48,109 WARN L205 SmtUtils]: Spent 3.75 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 21:07:49,876 WARN L205 SmtUtils]: Spent 1.76 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 21:07:51,883 WARN L205 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 21:07:52,773 WARN L205 SmtUtils]: Spent 887.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 21:07:56,952 WARN L205 SmtUtils]: Spent 4.18 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 21:07:58,824 WARN L205 SmtUtils]: Spent 1.87 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:07:58,968 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-28 21:07:59,081 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-28 21:07:59,193 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-28 21:07:59,307 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-28 21:08:00,351 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:08:00,471 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:08:00,593 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:08:00,719 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:08:02,471 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:08:02,579 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:08:02,689 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:08:02,796 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:08:04,871 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:08:04,985 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:08:05,099 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:08:05,213 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:08:06,183 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:08:06,337 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:08:06,496 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:08:06,650 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:08:06,781 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:08:06,915 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:08:07,058 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:08:07,213 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:08:07,368 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:08:07,525 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:08:07,687 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:08:07,840 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:08:08,026 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:08:08,208 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:08:08,398 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:08:08,592 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:08:08,761 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:08:08,914 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:08:09,065 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:08:09,211 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:08:09,358 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:08:09,507 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:08:09,661 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:08:09,820 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:08:09,996 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:08:10,182 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:08:10,371 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:08:10,562 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:08:10,731 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:08:10,899 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:08:11,068 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:08:11,236 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:08:11,403 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:08:11,559 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:08:11,704 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:08:11,850 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:08:12,077 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 21:08:12,308 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 21:08:12,541 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 21:08:12,766 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 21:08:12,899 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:08:13,032 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:08:13,165 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:08:13,299 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:08:13,518 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 21:08:13,735 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 21:08:13,949 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 21:08:14,166 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 21:08:14,310 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:08:14,456 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:08:14,601 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:08:14,746 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:08:14,892 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:08:15,038 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:08:15,184 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:08:15,330 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:08:15,461 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:08:15,582 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:08:15,703 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:08:15,824 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:08:15,964 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:08:16,104 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:08:16,244 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:08:16,384 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:08:16,512 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:08:16,639 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:08:16,766 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:08:16,893 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:08:17,039 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:08:17,187 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:08:17,333 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:08:17,479 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:08:17,617 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:08:17,757 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:08:17,896 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:08:18,034 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:08:18,270 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:08:18,503 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:08:18,746 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:08:18,983 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:08:19,223 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:08:19,465 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:08:19,738 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:08:20,001 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:08:20,237 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:08:20,458 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:08:20,685 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:08:20,907 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:08:21,195 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:08:21,481 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:08:21,793 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:08:22,087 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:08:22,373 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:08:22,659 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:08:22,947 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:08:23,224 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:08:23,444 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:08:23,648 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:08:23,853 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:08:24,057 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:08:24,307 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:08:24,575 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:08:24,836 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:08:25,105 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:08:25,372 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:08:25,635 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:08:25,896 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:08:26,158 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:08:26,414 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:08:26,674 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:08:26,934 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:08:27,192 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:08:27,409 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:08:27,628 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:08:27,853 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:08:28,077 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:08:28,283 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:08:28,487 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:08:28,688 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:08:28,892 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:08:29,107 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:08:29,326 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:08:29,529 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:08:29,751 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:08:29,990 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:08:30,229 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:08:30,465 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:08:30,696 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:08:30,920 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:08:31,155 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:08:31,379 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:08:31,619 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:08:31,843 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:08:32,041 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:08:32,230 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:08:32,419 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:08:32,772 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:08:33,113 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:08:33,468 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:08:33,804 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:08:34,113 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 21:08:34,421 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 21:08:34,747 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 21:08:35,065 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 21:08:35,411 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:08:35,751 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:08:36,108 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:08:36,456 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:08:36,787 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:08:37,102 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:08:37,427 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:08:37,743 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:08:38,650 WARN L205 SmtUtils]: Spent 904.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2021-04-28 21:08:39,079 WARN L205 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-04-28 21:08:39,928 WARN L205 SmtUtils]: Spent 845.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2021-04-28 21:08:40,353 WARN L205 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-04-28 21:08:40,696 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:08:41,031 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:08:41,375 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:08:41,722 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:08:42,050 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:08:42,377 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:08:42,703 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:08:43,037 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:08:43,364 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:08:43,685 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:08:43,994 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:08:44,312 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:08:44,665 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:08:45,038 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:08:45,359 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:08:45,678 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:08:45,988 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 21:08:46,296 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 21:08:46,618 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 21:08:46,939 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 21:08:47,889 WARN L205 SmtUtils]: Spent 947.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2021-04-28 21:08:48,335 WARN L205 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-04-28 21:08:49,271 WARN L205 SmtUtils]: Spent 933.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2021-04-28 21:08:49,713 WARN L205 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-04-28 21:08:49,780 INFO L158 LiptonReduction]: Checked pairs total: 24899 [2021-04-28 21:08:49,780 INFO L160 LiptonReduction]: Total number of compositions: 262 [2021-04-28 21:08:49,786 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 147433 [2021-04-28 21:08:49,813 INFO L129 PetriNetUnfolder]: 2/102 cut-off events. [2021-04-28 21:08:49,813 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:08:49,814 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:08:49,815 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:08:49,815 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:08:49,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:08:49,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1988398300, now seen corresponding path program 1 times [2021-04-28 21:08:49,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:08:49,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278279717] [2021-04-28 21:08:49,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:08:49,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:08:50,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:08:50,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 21:08:50,148 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 21:08:50,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278279717] [2021-04-28 21:08:50,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:08:50,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 21:08:50,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307137035] [2021-04-28 21:08:50,159 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:08:50,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:08:50,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:08:50,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:08:50,179 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 379 [2021-04-28 21:08:50,185 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 142 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 304.6666666666667) internal successors, (914), 3 states have internal predecessors, (914), 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 21:08:50,185 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:08:50,185 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 379 [2021-04-28 21:08:50,187 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:08:50,749 INFO L129 PetriNetUnfolder]: 212/677 cut-off events. [2021-04-28 21:08:50,749 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:08:50,753 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1083 conditions, 677 events. 212/677 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 5244 event pairs, 16 based on Foata normal form. 10/308 useless extension candidates. Maximal degree in co-relation 1006. Up to 333 conditions per place. [2021-04-28 21:08:50,756 INFO L132 encePairwiseOnDemand]: 361/379 looper letters, 7 selfloop transitions, 4 changer transitions 102/154 dead transitions. [2021-04-28 21:08:50,756 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 154 transitions, 418 flow [2021-04-28 21:08:50,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:08:50,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:08:50,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 963 transitions. [2021-04-28 21:08:50,779 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8469656992084432 [2021-04-28 21:08:50,780 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 963 transitions. [2021-04-28 21:08:50,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 963 transitions. [2021-04-28 21:08:50,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:08:50,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 963 transitions. [2021-04-28 21:08:50,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 321.0) internal successors, (963), 3 states have internal predecessors, (963), 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 21:08:50,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 379.0) internal successors, (1516), 4 states have internal predecessors, (1516), 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 21:08:50,806 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 379.0) internal successors, (1516), 4 states have internal predecessors, (1516), 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 21:08:50,808 INFO L185 Difference]: Start difference. First operand has 153 places, 142 transitions, 296 flow. Second operand 3 states and 963 transitions. [2021-04-28 21:08:50,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 154 transitions, 418 flow [2021-04-28 21:08:50,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 154 transitions, 414 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 21:08:50,817 INFO L241 Difference]: Finished difference. Result has 148 places, 49 transitions, 114 flow [2021-04-28 21:08:50,819 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=379, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=148, PETRI_TRANSITIONS=49} [2021-04-28 21:08:50,820 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -5 predicate places. [2021-04-28 21:08:50,820 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:08:50,821 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 148 places, 49 transitions, 114 flow [2021-04-28 21:08:50,821 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 148 places, 49 transitions, 114 flow [2021-04-28 21:08:50,822 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 49 transitions, 114 flow [2021-04-28 21:08:50,829 INFO L129 PetriNetUnfolder]: 0/49 cut-off events. [2021-04-28 21:08:50,830 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:08:50,830 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 49 events. 0/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 172 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-28 21:08:50,831 INFO L146 LiptonReduction]: Number of co-enabled transitions 1464 [2021-04-28 21:08:51,246 INFO L158 LiptonReduction]: Checked pairs total: 1426 [2021-04-28 21:08:51,246 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:08:51,246 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 426 [2021-04-28 21:08:51,249 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 49 transitions, 114 flow [2021-04-28 21:08:51,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 304.6666666666667) internal successors, (914), 3 states have internal predecessors, (914), 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 21:08:51,250 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:08:51,250 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:08:51,250 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 21:08:51,251 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:08:51,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:08:51,251 INFO L82 PathProgramCache]: Analyzing trace with hash 409763528, now seen corresponding path program 1 times [2021-04-28 21:08:51,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:08:51,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161013346] [2021-04-28 21:08:51,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:08:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:08:51,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:08:51,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:08:51,392 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 21:08:51,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161013346] [2021-04-28 21:08:51,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:08:51,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 21:08:51,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606350243] [2021-04-28 21:08:51,394 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:08:51,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:08:51,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:08:51,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:08:51,397 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 379 [2021-04-28 21:08:51,399 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 49 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 277.6666666666667) internal successors, (833), 3 states have internal predecessors, (833), 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 21:08:51,399 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:08:51,399 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 379 [2021-04-28 21:08:51,399 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:08:51,423 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2021-04-28 21:08:51,423 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:08:51,424 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 228 event pairs, 1 based on Foata normal form. 1/37 useless extension candidates. Maximal degree in co-relation 79. Up to 10 conditions per place. [2021-04-28 21:08:51,424 INFO L132 encePairwiseOnDemand]: 375/379 looper letters, 3 selfloop transitions, 3 changer transitions 0/51 dead transitions. [2021-04-28 21:08:51,424 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 51 transitions, 130 flow [2021-04-28 21:08:51,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:08:51,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:08:51,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 838 transitions. [2021-04-28 21:08:51,430 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7370272647317502 [2021-04-28 21:08:51,431 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 838 transitions. [2021-04-28 21:08:51,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 838 transitions. [2021-04-28 21:08:51,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:08:51,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 838 transitions. [2021-04-28 21:08:51,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 279.3333333333333) internal successors, (838), 3 states have internal predecessors, (838), 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 21:08:51,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 379.0) internal successors, (1516), 4 states have internal predecessors, (1516), 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 21:08:51,439 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 379.0) internal successors, (1516), 4 states have internal predecessors, (1516), 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 21:08:51,439 INFO L185 Difference]: Start difference. First operand has 60 places, 49 transitions, 114 flow. Second operand 3 states and 838 transitions. [2021-04-28 21:08:51,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 51 transitions, 130 flow [2021-04-28 21:08:51,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 51 transitions, 122 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 21:08:51,442 INFO L241 Difference]: Finished difference. Result has 61 places, 51 transitions, 125 flow [2021-04-28 21:08:51,442 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=379, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=61, PETRI_TRANSITIONS=51} [2021-04-28 21:08:51,442 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -92 predicate places. [2021-04-28 21:08:51,443 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:08:51,443 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 51 transitions, 125 flow [2021-04-28 21:08:51,443 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 51 transitions, 125 flow [2021-04-28 21:08:51,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 51 transitions, 125 flow [2021-04-28 21:08:51,453 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2021-04-28 21:08:51,453 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:08:51,454 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 247 event pairs, 1 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 78. Up to 10 conditions per place. [2021-04-28 21:08:51,455 INFO L146 LiptonReduction]: Number of co-enabled transitions 1586 [2021-04-28 21:08:52,249 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-04-28 21:08:52,360 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:08:52,464 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:08:52,522 INFO L158 LiptonReduction]: Checked pairs total: 2304 [2021-04-28 21:08:52,522 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-28 21:08:52,523 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1080 [2021-04-28 21:08:52,524 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 51 transitions, 125 flow [2021-04-28 21:08:52,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 277.6666666666667) internal successors, (833), 3 states have internal predecessors, (833), 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 21:08:52,525 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:08:52,525 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:08:52,526 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 21:08:52,526 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:08:52,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:08:52,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1422161633, now seen corresponding path program 1 times [2021-04-28 21:08:52,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:08:52,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607846699] [2021-04-28 21:08:52,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:08:52,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:08:52,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:08:52,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:08:52,619 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 21:08:52,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607846699] [2021-04-28 21:08:52,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:08:52,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 21:08:52,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571221243] [2021-04-28 21:08:52,620 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:08:52,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:08:52,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:08:52,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:08:52,623 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 380 [2021-04-28 21:08:52,625 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 51 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 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 21:08:52,625 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:08:52,625 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 380 [2021-04-28 21:08:52,625 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:08:52,677 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2021-04-28 21:08:52,677 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-04-28 21:08:52,678 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 63 events. 3/63 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 232 event pairs, 1 based on Foata normal form. 1/36 useless extension candidates. Maximal degree in co-relation 82. Up to 10 conditions per place. [2021-04-28 21:08:52,679 INFO L132 encePairwiseOnDemand]: 377/380 looper letters, 1 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2021-04-28 21:08:52,679 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 51 transitions, 131 flow [2021-04-28 21:08:52,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:08:52,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:08:52,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 799 transitions. [2021-04-28 21:08:52,684 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7008771929824561 [2021-04-28 21:08:52,685 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 799 transitions. [2021-04-28 21:08:52,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 799 transitions. [2021-04-28 21:08:52,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:08:52,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 799 transitions. [2021-04-28 21:08:52,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 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 21:08:52,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 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 21:08:52,693 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 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 21:08:52,694 INFO L185 Difference]: Start difference. First operand has 61 places, 51 transitions, 125 flow. Second operand 3 states and 799 transitions. [2021-04-28 21:08:52,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 51 transitions, 131 flow [2021-04-28 21:08:52,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 51 transitions, 128 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 21:08:52,696 INFO L241 Difference]: Finished difference. Result has 63 places, 51 transitions, 130 flow [2021-04-28 21:08:52,696 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=63, PETRI_TRANSITIONS=51} [2021-04-28 21:08:52,696 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -90 predicate places. [2021-04-28 21:08:52,697 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:08:52,697 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 51 transitions, 130 flow [2021-04-28 21:08:52,697 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 51 transitions, 130 flow [2021-04-28 21:08:52,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 51 transitions, 130 flow [2021-04-28 21:08:52,707 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2021-04-28 21:08:52,707 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-28 21:08:52,708 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 63 events. 3/63 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 243 event pairs, 1 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 81. Up to 10 conditions per place. [2021-04-28 21:08:52,710 INFO L146 LiptonReduction]: Number of co-enabled transitions 1576 [2021-04-28 21:08:52,837 INFO L158 LiptonReduction]: Checked pairs total: 1053 [2021-04-28 21:08:52,838 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:08:52,838 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 141 [2021-04-28 21:08:52,839 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 51 transitions, 130 flow [2021-04-28 21:08:52,840 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 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 21:08:52,840 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:08:52,840 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:08:52,840 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 21:08:52,840 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:08:52,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:08:52,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1354327224, now seen corresponding path program 1 times [2021-04-28 21:08:52,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:08:52,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199990053] [2021-04-28 21:08:52,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:08:52,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:08:53,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:08:53,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:08:53,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:08:53,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 21:08:53,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:08:53,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:08:53,044 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 21:08:53,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199990053] [2021-04-28 21:08:53,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:08:53,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 21:08:53,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370070656] [2021-04-28 21:08:53,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 21:08:53,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:08:53,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 21:08:53,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 21:08:53,048 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 380 [2021-04-28 21:08:53,050 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 51 transitions, 130 flow. Second operand has 4 states, 4 states have (on average 246.0) internal successors, (984), 4 states have internal predecessors, (984), 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 21:08:53,050 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:08:53,050 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 380 [2021-04-28 21:08:53,050 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:08:53,193 INFO L129 PetriNetUnfolder]: 58/201 cut-off events. [2021-04-28 21:08:53,193 INFO L130 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2021-04-28 21:08:53,195 INFO L84 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 201 events. 58/201 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 976 event pairs, 26 based on Foata normal form. 1/131 useless extension candidates. Maximal degree in co-relation 358. Up to 85 conditions per place. [2021-04-28 21:08:53,197 INFO L132 encePairwiseOnDemand]: 376/380 looper letters, 14 selfloop transitions, 3 changer transitions 0/58 dead transitions. [2021-04-28 21:08:53,197 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 58 transitions, 181 flow [2021-04-28 21:08:53,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:08:53,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:08:53,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 751 transitions. [2021-04-28 21:08:53,203 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6587719298245615 [2021-04-28 21:08:53,203 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 751 transitions. [2021-04-28 21:08:53,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 751 transitions. [2021-04-28 21:08:53,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:08:53,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 751 transitions. [2021-04-28 21:08:53,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 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 21:08:53,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 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 21:08:53,211 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 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 21:08:53,211 INFO L185 Difference]: Start difference. First operand has 63 places, 51 transitions, 130 flow. Second operand 3 states and 751 transitions. [2021-04-28 21:08:53,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 58 transitions, 181 flow [2021-04-28 21:08:53,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 58 transitions, 175 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 21:08:53,214 INFO L241 Difference]: Finished difference. Result has 64 places, 53 transitions, 145 flow [2021-04-28 21:08:53,215 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=145, PETRI_PLACES=64, PETRI_TRANSITIONS=53} [2021-04-28 21:08:53,215 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -89 predicate places. [2021-04-28 21:08:53,215 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:08:53,215 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 53 transitions, 145 flow [2021-04-28 21:08:53,215 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 53 transitions, 145 flow [2021-04-28 21:08:53,216 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 53 transitions, 145 flow [2021-04-28 21:08:53,231 INFO L129 PetriNetUnfolder]: 12/91 cut-off events. [2021-04-28 21:08:53,231 INFO L130 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2021-04-28 21:08:53,232 INFO L84 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 91 events. 12/91 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 364 event pairs, 5 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 143. Up to 20 conditions per place. [2021-04-28 21:08:53,235 INFO L146 LiptonReduction]: Number of co-enabled transitions 1670 [2021-04-28 21:08:53,380 INFO L158 LiptonReduction]: Checked pairs total: 801 [2021-04-28 21:08:53,380 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:08:53,380 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 165 [2021-04-28 21:08:53,381 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 53 transitions, 145 flow [2021-04-28 21:08:53,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 246.0) internal successors, (984), 4 states have internal predecessors, (984), 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 21:08:53,383 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:08:53,383 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:08:53,383 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 21:08:53,383 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:08:53,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:08:53,384 INFO L82 PathProgramCache]: Analyzing trace with hash 2010879794, now seen corresponding path program 1 times [2021-04-28 21:08:53,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:08:53,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683117771] [2021-04-28 21:08:53,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:08:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:08:53,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:08:53,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:08:53,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:08:53,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 21:08:53,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:08:53,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:08:53,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:08:53,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:08:53,535 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 21:08:53,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683117771] [2021-04-28 21:08:53,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:08:53,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:08:53,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155278620] [2021-04-28 21:08:53,535 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 21:08:53,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:08:53,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 21:08:53,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-04-28 21:08:53,538 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 380 [2021-04-28 21:08:53,540 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 53 transitions, 145 flow. Second operand has 5 states, 5 states have (on average 246.0) internal successors, (1230), 5 states have internal predecessors, (1230), 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 21:08:53,541 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:08:53,541 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 380 [2021-04-28 21:08:53,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:08:53,687 INFO L129 PetriNetUnfolder]: 53/197 cut-off events. [2021-04-28 21:08:53,687 INFO L130 PetriNetUnfolder]: For 66/66 co-relation queries the response was YES. [2021-04-28 21:08:53,689 INFO L84 FinitePrefix]: Finished finitePrefix Result has 397 conditions, 197 events. 53/197 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1001 event pairs, 26 based on Foata normal form. 2/124 useless extension candidates. Maximal degree in co-relation 384. Up to 68 conditions per place. [2021-04-28 21:08:53,691 INFO L132 encePairwiseOnDemand]: 375/380 looper letters, 14 selfloop transitions, 5 changer transitions 0/60 dead transitions. [2021-04-28 21:08:53,691 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 60 transitions, 200 flow [2021-04-28 21:08:53,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 21:08:53,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 21:08:53,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 996 transitions. [2021-04-28 21:08:53,698 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6552631578947369 [2021-04-28 21:08:53,698 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 996 transitions. [2021-04-28 21:08:53,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 996 transitions. [2021-04-28 21:08:53,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:08:53,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 996 transitions. [2021-04-28 21:08:53,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 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 21:08:53,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 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 21:08:53,708 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 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 21:08:53,708 INFO L185 Difference]: Start difference. First operand has 64 places, 53 transitions, 145 flow. Second operand 4 states and 996 transitions. [2021-04-28 21:08:53,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 60 transitions, 200 flow [2021-04-28 21:08:53,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 60 transitions, 197 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 21:08:53,711 INFO L241 Difference]: Finished difference. Result has 67 places, 55 transitions, 168 flow [2021-04-28 21:08:53,711 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=168, PETRI_PLACES=67, PETRI_TRANSITIONS=55} [2021-04-28 21:08:53,711 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -86 predicate places. [2021-04-28 21:08:53,711 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:08:53,711 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 55 transitions, 168 flow [2021-04-28 21:08:53,712 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 55 transitions, 168 flow [2021-04-28 21:08:53,712 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 55 transitions, 168 flow [2021-04-28 21:08:53,732 INFO L129 PetriNetUnfolder]: 15/109 cut-off events. [2021-04-28 21:08:53,732 INFO L130 PetriNetUnfolder]: For 67/69 co-relation queries the response was YES. [2021-04-28 21:08:53,733 INFO L84 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 109 events. 15/109 cut-off events. For 67/69 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 512 event pairs, 5 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 201. Up to 24 conditions per place. [2021-04-28 21:08:53,736 INFO L146 LiptonReduction]: Number of co-enabled transitions 1772 [2021-04-28 21:08:53,823 INFO L158 LiptonReduction]: Checked pairs total: 628 [2021-04-28 21:08:53,823 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:08:53,823 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 112 [2021-04-28 21:08:53,825 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 55 transitions, 168 flow [2021-04-28 21:08:53,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 246.0) internal successors, (1230), 5 states have internal predecessors, (1230), 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 21:08:53,826 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:08:53,827 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:08:53,827 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 21:08:53,827 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:08:53,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:08:53,828 INFO L82 PathProgramCache]: Analyzing trace with hash 65163209, now seen corresponding path program 1 times [2021-04-28 21:08:53,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:08:53,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942416155] [2021-04-28 21:08:53,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:08:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:08:53,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:08:53,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:08:53,991 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 21:08:53,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:08:54,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:08:54,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:08:54,020 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 21:08:54,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942416155] [2021-04-28 21:08:54,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:08:54,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:08:54,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340490951] [2021-04-28 21:08:54,021 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 21:08:54,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:08:54,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 21:08:54,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 21:08:54,023 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 380 [2021-04-28 21:08:54,025 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 55 transitions, 168 flow. Second operand has 4 states, 4 states have (on average 286.75) internal successors, (1147), 4 states have internal predecessors, (1147), 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 21:08:54,026 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:08:54,026 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 380 [2021-04-28 21:08:54,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:08:57,762 INFO L129 PetriNetUnfolder]: 17787/25713 cut-off events. [2021-04-28 21:08:57,762 INFO L130 PetriNetUnfolder]: For 3809/4197 co-relation queries the response was YES. [2021-04-28 21:08:57,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53441 conditions, 25713 events. 17787/25713 cut-off events. For 3809/4197 co-relation queries the response was YES. Maximal size of possible extension queue 4644. Compared 217221 event pairs, 10002 based on Foata normal form. 418/7849 useless extension candidates. Maximal degree in co-relation 53426. Up to 15991 conditions per place. [2021-04-28 21:08:58,002 INFO L132 encePairwiseOnDemand]: 360/380 looper letters, 34 selfloop transitions, 33 changer transitions 0/99 dead transitions. [2021-04-28 21:08:58,002 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 99 transitions, 390 flow [2021-04-28 21:08:58,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:08:58,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:08:58,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1496 transitions. [2021-04-28 21:08:58,009 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7873684210526316 [2021-04-28 21:08:58,010 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1496 transitions. [2021-04-28 21:08:58,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1496 transitions. [2021-04-28 21:08:58,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:08:58,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1496 transitions. [2021-04-28 21:08:58,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 299.2) internal successors, (1496), 5 states have internal predecessors, (1496), 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 21:08:58,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 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 21:08:58,024 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 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 21:08:58,024 INFO L185 Difference]: Start difference. First operand has 67 places, 55 transitions, 168 flow. Second operand 5 states and 1496 transitions. [2021-04-28 21:08:58,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 99 transitions, 390 flow [2021-04-28 21:08:58,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 99 transitions, 382 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-28 21:08:58,035 INFO L241 Difference]: Finished difference. Result has 72 places, 86 transitions, 406 flow [2021-04-28 21:08:58,035 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=406, PETRI_PLACES=72, PETRI_TRANSITIONS=86} [2021-04-28 21:08:58,035 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -81 predicate places. [2021-04-28 21:08:58,035 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:08:58,035 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 86 transitions, 406 flow [2021-04-28 21:08:58,036 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 86 transitions, 406 flow [2021-04-28 21:08:58,037 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 86 transitions, 406 flow [2021-04-28 21:09:00,877 INFO L129 PetriNetUnfolder]: 16230/23687 cut-off events. [2021-04-28 21:09:00,877 INFO L130 PetriNetUnfolder]: For 6930/18104 co-relation queries the response was YES. [2021-04-28 21:09:00,972 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69005 conditions, 23687 events. 16230/23687 cut-off events. For 6930/18104 co-relation queries the response was YES. Maximal size of possible extension queue 4306. Compared 200005 event pairs, 9521 based on Foata normal form. 0/7016 useless extension candidates. Maximal degree in co-relation 68989. Up to 22133 conditions per place. [2021-04-28 21:09:01,230 INFO L146 LiptonReduction]: Number of co-enabled transitions 2670 [2021-04-28 21:09:01,287 INFO L158 LiptonReduction]: Checked pairs total: 1052 [2021-04-28 21:09:01,288 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:09:01,288 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3253 [2021-04-28 21:09:01,290 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 86 transitions, 406 flow [2021-04-28 21:09:01,290 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 286.75) internal successors, (1147), 4 states have internal predecessors, (1147), 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 21:09:01,291 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:09:01,291 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:09:01,291 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 21:09:01,291 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:09:01,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:09:01,292 INFO L82 PathProgramCache]: Analyzing trace with hash -547042687, now seen corresponding path program 1 times [2021-04-28 21:09:01,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:09:01,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398359799] [2021-04-28 21:09:01,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:09:01,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:09:01,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:09:01,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:09:01,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:09:01,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:09:01,400 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 21:09:01,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:09:01,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:09:01,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:09:01,429 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 21:09:01,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398359799] [2021-04-28 21:09:01,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:09:01,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 21:09:01,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254005580] [2021-04-28 21:09:01,430 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 21:09:01,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:09:01,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 21:09:01,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 21:09:01,433 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 380 [2021-04-28 21:09:01,435 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 86 transitions, 406 flow. Second operand has 5 states, 5 states have (on average 286.8) internal successors, (1434), 5 states have internal predecessors, (1434), 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 21:09:01,435 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:09:01,435 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 380 [2021-04-28 21:09:01,435 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:09:05,086 INFO L129 PetriNetUnfolder]: 19908/30045 cut-off events. [2021-04-28 21:09:05,087 INFO L130 PetriNetUnfolder]: For 10757/74430 co-relation queries the response was YES. [2021-04-28 21:09:05,197 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115839 conditions, 30045 events. 19908/30045 cut-off events. For 10757/74430 co-relation queries the response was YES. Maximal size of possible extension queue 5841. Compared 261392 event pairs, 4212 based on Foata normal form. 456/10018 useless extension candidates. Maximal degree in co-relation 115821. Up to 27680 conditions per place. [2021-04-28 21:09:05,306 INFO L132 encePairwiseOnDemand]: 360/380 looper letters, 35 selfloop transitions, 64 changer transitions 0/131 dead transitions. [2021-04-28 21:09:05,306 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 131 transitions, 853 flow [2021-04-28 21:09:05,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 21:09:05,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 21:09:05,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2098 transitions. [2021-04-28 21:09:05,316 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7887218045112782 [2021-04-28 21:09:05,316 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2098 transitions. [2021-04-28 21:09:05,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2098 transitions. [2021-04-28 21:09:05,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:09:05,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2098 transitions. [2021-04-28 21:09:05,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 299.7142857142857) internal successors, (2098), 7 states have internal predecessors, (2098), 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 21:09:05,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 380.0) internal successors, (3040), 8 states have internal predecessors, (3040), 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 21:09:05,337 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 380.0) internal successors, (3040), 8 states have internal predecessors, (3040), 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 21:09:05,338 INFO L185 Difference]: Start difference. First operand has 72 places, 86 transitions, 406 flow. Second operand 7 states and 2098 transitions. [2021-04-28 21:09:05,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 131 transitions, 853 flow [2021-04-28 21:09:05,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 131 transitions, 853 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 21:09:05,455 INFO L241 Difference]: Finished difference. Result has 81 places, 117 transitions, 848 flow [2021-04-28 21:09:05,455 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=848, PETRI_PLACES=81, PETRI_TRANSITIONS=117} [2021-04-28 21:09:05,456 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -72 predicate places. [2021-04-28 21:09:05,456 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:09:05,456 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 117 transitions, 848 flow [2021-04-28 21:09:05,456 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 117 transitions, 848 flow [2021-04-28 21:09:05,457 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 117 transitions, 848 flow [2021-04-28 21:09:08,063 INFO L129 PetriNetUnfolder]: 18152/27842 cut-off events. [2021-04-28 21:09:08,063 INFO L130 PetriNetUnfolder]: For 68377/126230 co-relation queries the response was YES. [2021-04-28 21:09:08,181 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131861 conditions, 27842 events. 18152/27842 cut-off events. For 68377/126230 co-relation queries the response was YES. Maximal size of possible extension queue 5462. Compared 257083 event pairs, 4170 based on Foata normal form. 3/8370 useless extension candidates. Maximal degree in co-relation 131840. Up to 26303 conditions per place. [2021-04-28 21:09:08,544 INFO L146 LiptonReduction]: Number of co-enabled transitions 3784 [2021-04-28 21:09:08,598 INFO L158 LiptonReduction]: Checked pairs total: 2010 [2021-04-28 21:09:08,599 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:09:08,599 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3143 [2021-04-28 21:09:08,600 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 117 transitions, 848 flow [2021-04-28 21:09:08,601 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 286.8) internal successors, (1434), 5 states have internal predecessors, (1434), 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 21:09:08,601 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:09:08,601 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:09:08,601 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 21:09:08,602 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:09:08,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:09:08,602 INFO L82 PathProgramCache]: Analyzing trace with hash -846086085, now seen corresponding path program 1 times [2021-04-28 21:09:08,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:09:08,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504126367] [2021-04-28 21:09:08,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:09:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:09:08,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:09:08,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:09:08,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:09:08,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:09:08,676 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 21:09:08,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504126367] [2021-04-28 21:09:08,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:09:08,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 21:09:08,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146142622] [2021-04-28 21:09:08,677 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:09:08,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:09:08,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:09:08,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:09:08,679 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 380 [2021-04-28 21:09:08,680 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 117 transitions, 848 flow. Second operand has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 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 21:09:08,680 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:09:08,680 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 380 [2021-04-28 21:09:08,680 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:09:13,335 INFO L129 PetriNetUnfolder]: 31967/47607 cut-off events. [2021-04-28 21:09:13,335 INFO L130 PetriNetUnfolder]: For 140871/269808 co-relation queries the response was YES. [2021-04-28 21:09:13,517 INFO L84 FinitePrefix]: Finished finitePrefix Result has 227801 conditions, 47607 events. 31967/47607 cut-off events. For 140871/269808 co-relation queries the response was YES. Maximal size of possible extension queue 9270. Compared 425393 event pairs, 7758 based on Foata normal form. 399/14401 useless extension candidates. Maximal degree in co-relation 227778. Up to 45770 conditions per place. [2021-04-28 21:09:13,888 INFO L132 encePairwiseOnDemand]: 377/380 looper letters, 3 selfloop transitions, 3 changer transitions 6/117 dead transitions. [2021-04-28 21:09:13,889 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 117 transitions, 860 flow [2021-04-28 21:09:13,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:09:13,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:09:13,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 840 transitions. [2021-04-28 21:09:13,895 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7368421052631579 [2021-04-28 21:09:13,896 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 840 transitions. [2021-04-28 21:09:13,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 840 transitions. [2021-04-28 21:09:13,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:09:13,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 840 transitions. [2021-04-28 21:09:13,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 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 21:09:13,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 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 21:09:13,903 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 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 21:09:13,903 INFO L185 Difference]: Start difference. First operand has 81 places, 117 transitions, 848 flow. Second operand 3 states and 840 transitions. [2021-04-28 21:09:13,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 117 transitions, 860 flow [2021-04-28 21:09:14,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 117 transitions, 698 flow, removed 54 selfloop flow, removed 3 redundant places. [2021-04-28 21:09:14,678 INFO L241 Difference]: Finished difference. Result has 81 places, 111 transitions, 655 flow [2021-04-28 21:09:14,678 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=655, PETRI_PLACES=81, PETRI_TRANSITIONS=111} [2021-04-28 21:09:14,679 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -72 predicate places. [2021-04-28 21:09:14,679 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:09:14,679 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 111 transitions, 655 flow [2021-04-28 21:09:14,679 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 111 transitions, 655 flow [2021-04-28 21:09:14,680 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 111 transitions, 655 flow [2021-04-28 21:09:18,442 INFO L129 PetriNetUnfolder]: 27507/42278 cut-off events. [2021-04-28 21:09:18,442 INFO L130 PetriNetUnfolder]: For 43069/48100 co-relation queries the response was YES. [2021-04-28 21:09:18,609 INFO L84 FinitePrefix]: Finished finitePrefix Result has 194433 conditions, 42278 events. 27507/42278 cut-off events. For 43069/48100 co-relation queries the response was YES. Maximal size of possible extension queue 8759. Compared 406894 event pairs, 7606 based on Foata normal form. 3/12546 useless extension candidates. Maximal degree in co-relation 194412. Up to 37672 conditions per place. [2021-04-28 21:09:18,939 INFO L146 LiptonReduction]: Number of co-enabled transitions 3602 [2021-04-28 21:09:20,081 INFO L158 LiptonReduction]: Checked pairs total: 1890 [2021-04-28 21:09:20,081 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:09:20,081 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5402 [2021-04-28 21:09:20,082 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 111 transitions, 655 flow [2021-04-28 21:09:20,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 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 21:09:20,083 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:09:20,083 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:09:20,083 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 21:09:20,084 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:09:20,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:09:20,084 INFO L82 PathProgramCache]: Analyzing trace with hash -2139675447, now seen corresponding path program 1 times [2021-04-28 21:09:20,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:09:20,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762360744] [2021-04-28 21:09:20,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:09:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:09:20,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:09:20,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:09:20,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:09:20,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:09:20,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:09:20,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:09:20,212 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 21:09:20,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:09:20,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:09:20,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:09:20,243 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 21:09:20,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762360744] [2021-04-28 21:09:20,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:09:20,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 21:09:20,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652936439] [2021-04-28 21:09:20,244 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 21:09:20,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:09:20,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 21:09:20,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 21:09:20,247 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 380 [2021-04-28 21:09:20,250 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 111 transitions, 655 flow. Second operand has 6 states, 6 states have (on average 286.8333333333333) internal successors, (1721), 6 states have internal predecessors, (1721), 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 21:09:20,250 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:09:20,250 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 380 [2021-04-28 21:09:20,250 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:09:25,619 INFO L129 PetriNetUnfolder]: 30557/48786 cut-off events. [2021-04-28 21:09:25,619 INFO L130 PetriNetUnfolder]: For 53194/211419 co-relation queries the response was YES. [2021-04-28 21:09:26,099 INFO L84 FinitePrefix]: Finished finitePrefix Result has 270117 conditions, 48786 events. 30557/48786 cut-off events. For 53194/211419 co-relation queries the response was YES. Maximal size of possible extension queue 9945. Compared 482687 event pairs, 1404 based on Foata normal form. 725/15792 useless extension candidates. Maximal degree in co-relation 270094. Up to 42703 conditions per place. [2021-04-28 21:09:26,229 INFO L132 encePairwiseOnDemand]: 360/380 looper letters, 24 selfloop transitions, 86 changer transitions 15/157 dead transitions. [2021-04-28 21:09:26,229 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 157 transitions, 1314 flow [2021-04-28 21:09:26,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 21:09:26,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 21:09:26,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2694 transitions. [2021-04-28 21:09:26,241 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.787719298245614 [2021-04-28 21:09:26,241 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2694 transitions. [2021-04-28 21:09:26,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2694 transitions. [2021-04-28 21:09:26,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:09:26,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2694 transitions. [2021-04-28 21:09:26,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 299.3333333333333) internal successors, (2694), 9 states have internal predecessors, (2694), 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 21:09:26,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 380.0) internal successors, (3800), 10 states have internal predecessors, (3800), 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 21:09:26,262 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 380.0) internal successors, (3800), 10 states have internal predecessors, (3800), 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 21:09:26,263 INFO L185 Difference]: Start difference. First operand has 81 places, 111 transitions, 655 flow. Second operand 9 states and 2694 transitions. [2021-04-28 21:09:26,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 157 transitions, 1314 flow [2021-04-28 21:09:26,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 157 transitions, 1309 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-28 21:09:26,864 INFO L241 Difference]: Finished difference. Result has 91 places, 139 transitions, 1189 flow [2021-04-28 21:09:26,865 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1189, PETRI_PLACES=91, PETRI_TRANSITIONS=139} [2021-04-28 21:09:26,865 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -62 predicate places. [2021-04-28 21:09:26,865 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:09:26,865 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 139 transitions, 1189 flow [2021-04-28 21:09:26,866 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 139 transitions, 1189 flow [2021-04-28 21:09:26,867 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 139 transitions, 1189 flow [2021-04-28 21:09:30,157 INFO L129 PetriNetUnfolder]: 15244/31190 cut-off events. [2021-04-28 21:09:30,157 INFO L130 PetriNetUnfolder]: For 78979/97236 co-relation queries the response was YES. [2021-04-28 21:09:30,307 INFO L84 FinitePrefix]: Finished finitePrefix Result has 188447 conditions, 31190 events. 15244/31190 cut-off events. For 78979/97236 co-relation queries the response was YES. Maximal size of possible extension queue 8516. Compared 403529 event pairs, 1337 based on Foata normal form. 3/9388 useless extension candidates. Maximal degree in co-relation 188422. Up to 26629 conditions per place. [2021-04-28 21:09:30,591 INFO L146 LiptonReduction]: Number of co-enabled transitions 4110 [2021-04-28 21:09:31,160 INFO L158 LiptonReduction]: Checked pairs total: 2782 [2021-04-28 21:09:31,160 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:09:31,160 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4295 [2021-04-28 21:09:31,162 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 139 transitions, 1189 flow [2021-04-28 21:09:31,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 286.8333333333333) internal successors, (1721), 6 states have internal predecessors, (1721), 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 21:09:31,163 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:09:31,163 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] [2021-04-28 21:09:31,163 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 21:09:31,163 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:09:31,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:09:31,164 INFO L82 PathProgramCache]: Analyzing trace with hash -804475175, now seen corresponding path program 1 times [2021-04-28 21:09:31,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:09:31,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639592293] [2021-04-28 21:09:31,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:09:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:09:31,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:09:31,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:09:31,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:09:31,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:09:31,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:09:31,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:09:31,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:09:31,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:09:31,289 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 21:09:31,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:09:31,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:09:31,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:09:31,324 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 21:09:31,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639592293] [2021-04-28 21:09:31,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:09:31,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-28 21:09:31,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892182267] [2021-04-28 21:09:31,325 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 21:09:31,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:09:31,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 21:09:31,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-28 21:09:31,328 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 380 [2021-04-28 21:09:31,331 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 139 transitions, 1189 flow. Second operand has 7 states, 7 states have (on average 286.85714285714283) internal successors, (2008), 7 states have internal predecessors, (2008), 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 21:09:31,331 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:09:31,331 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 380 [2021-04-28 21:09:31,332 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:09:36,793 INFO L129 PetriNetUnfolder]: 16787/34017 cut-off events. [2021-04-28 21:09:36,793 INFO L130 PetriNetUnfolder]: For 75940/283170 co-relation queries the response was YES. [2021-04-28 21:09:36,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 236955 conditions, 34017 events. 16787/34017 cut-off events. For 75940/283170 co-relation queries the response was YES. Maximal size of possible extension queue 7821. Compared 416067 event pairs, 0 based on Foata normal form. 552/10381 useless extension candidates. Maximal degree in co-relation 236928. Up to 28609 conditions per place. [2021-04-28 21:09:37,044 INFO L132 encePairwiseOnDemand]: 360/380 looper letters, 6 selfloop transitions, 104 changer transitions 20/162 dead transitions. [2021-04-28 21:09:37,045 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 162 transitions, 1665 flow [2021-04-28 21:09:37,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 21:09:37,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 21:09:37,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3269 transitions. [2021-04-28 21:09:37,061 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7820574162679426 [2021-04-28 21:09:37,062 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3269 transitions. [2021-04-28 21:09:37,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3269 transitions. [2021-04-28 21:09:37,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:09:37,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3269 transitions. [2021-04-28 21:09:37,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 297.1818181818182) internal successors, (3269), 11 states have internal predecessors, (3269), 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 21:09:37,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 380.0) internal successors, (4560), 12 states have internal predecessors, (4560), 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 21:09:37,082 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 380.0) internal successors, (4560), 12 states have internal predecessors, (4560), 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 21:09:37,082 INFO L185 Difference]: Start difference. First operand has 91 places, 139 transitions, 1189 flow. Second operand 11 states and 3269 transitions. [2021-04-28 21:09:37,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 162 transitions, 1665 flow [2021-04-28 21:10:09,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 162 transitions, 1355 flow, removed 100 selfloop flow, removed 6 redundant places. [2021-04-28 21:10:09,443 INFO L241 Difference]: Finished difference. Result has 98 places, 139 transitions, 1141 flow [2021-04-28 21:10:09,443 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=880, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1141, PETRI_PLACES=98, PETRI_TRANSITIONS=139} [2021-04-28 21:10:09,444 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -55 predicate places. [2021-04-28 21:10:09,444 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:10:09,444 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 139 transitions, 1141 flow [2021-04-28 21:10:09,444 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 139 transitions, 1141 flow [2021-04-28 21:10:09,446 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 139 transitions, 1141 flow [2021-04-28 21:10:11,170 INFO L129 PetriNetUnfolder]: 9902/20871 cut-off events. [2021-04-28 21:10:11,170 INFO L130 PetriNetUnfolder]: For 37488/47320 co-relation queries the response was YES. [2021-04-28 21:10:11,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94926 conditions, 20871 events. 9902/20871 cut-off events. For 37488/47320 co-relation queries the response was YES. Maximal size of possible extension queue 6065. Compared 264079 event pairs, 0 based on Foata normal form. 1/5923 useless extension candidates. Maximal degree in co-relation 94899. Up to 14040 conditions per place. [2021-04-28 21:10:11,418 INFO L146 LiptonReduction]: Number of co-enabled transitions 3996 [2021-04-28 21:10:20,874 INFO L158 LiptonReduction]: Checked pairs total: 2872 [2021-04-28 21:10:20,874 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:10:20,874 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11430 [2021-04-28 21:10:20,875 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 139 transitions, 1141 flow [2021-04-28 21:10:20,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 286.85714285714283) internal successors, (2008), 7 states have internal predecessors, (2008), 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 21:10:20,876 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:10:20,876 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, 1, 1, 1] [2021-04-28 21:10:20,876 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 21:10:20,876 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:10:20,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:10:20,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1815156654, now seen corresponding path program 1 times [2021-04-28 21:10:20,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:10:20,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819768553] [2021-04-28 21:10:20,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:10:20,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:10:20,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:10:20,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:10:20,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:10:20,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:10:20,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:10:20,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:10:20,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:10:20,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819768553] [2021-04-28 21:10:20,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:10:20,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:10:20,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944807576] [2021-04-28 21:10:20,961 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 21:10:20,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:10:20,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 21:10:20,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 21:10:20,963 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 380 [2021-04-28 21:10:20,964 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 139 transitions, 1141 flow. Second operand has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 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 21:10:20,965 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:10:20,965 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 380 [2021-04-28 21:10:20,965 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:10:25,563 INFO L129 PetriNetUnfolder]: 23193/45888 cut-off events. [2021-04-28 21:10:25,563 INFO L130 PetriNetUnfolder]: For 137078/456940 co-relation queries the response was YES. [2021-04-28 21:10:25,796 INFO L84 FinitePrefix]: Finished finitePrefix Result has 207677 conditions, 45888 events. 23193/45888 cut-off events. For 137078/456940 co-relation queries the response was YES. Maximal size of possible extension queue 14637. Compared 589409 event pairs, 0 based on Foata normal form. 82/11851 useless extension candidates. Maximal degree in co-relation 207648. Up to 31428 conditions per place. [2021-04-28 21:10:25,896 INFO L132 encePairwiseOnDemand]: 377/380 looper letters, 3 selfloop transitions, 2 changer transitions 0/140 dead transitions. [2021-04-28 21:10:25,896 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 140 transitions, 1153 flow [2021-04-28 21:10:25,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 21:10:25,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 21:10:25,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1026 transitions. [2021-04-28 21:10:25,912 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.675 [2021-04-28 21:10:25,912 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1026 transitions. [2021-04-28 21:10:25,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1026 transitions. [2021-04-28 21:10:25,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:10:25,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1026 transitions. [2021-04-28 21:10:25,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 256.5) internal successors, (1026), 4 states have internal predecessors, (1026), 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 21:10:25,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 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 21:10:25,919 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 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 21:10:25,919 INFO L185 Difference]: Start difference. First operand has 96 places, 139 transitions, 1141 flow. Second operand 4 states and 1026 transitions. [2021-04-28 21:10:25,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 140 transitions, 1153 flow [2021-04-28 21:11:35,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 140 transitions, 802 flow, removed 83 selfloop flow, removed 10 redundant places. [2021-04-28 21:11:35,750 INFO L241 Difference]: Finished difference. Result has 91 places, 140 transitions, 803 flow [2021-04-28 21:11:35,750 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=803, PETRI_PLACES=91, PETRI_TRANSITIONS=140} [2021-04-28 21:11:35,750 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -62 predicate places. [2021-04-28 21:11:35,750 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:11:35,750 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 140 transitions, 803 flow [2021-04-28 21:11:35,751 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 140 transitions, 803 flow [2021-04-28 21:11:35,751 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 140 transitions, 803 flow [2021-04-28 21:11:38,981 INFO L129 PetriNetUnfolder]: 19548/41109 cut-off events. [2021-04-28 21:11:38,981 INFO L130 PetriNetUnfolder]: For 28020/33230 co-relation queries the response was YES. [2021-04-28 21:11:39,627 INFO L84 FinitePrefix]: Finished finitePrefix Result has 155765 conditions, 41109 events. 19548/41109 cut-off events. For 28020/33230 co-relation queries the response was YES. Maximal size of possible extension queue 10364. Compared 552459 event pairs, 0 based on Foata normal form. 1/11536 useless extension candidates. Maximal degree in co-relation 155740. Up to 28080 conditions per place. [2021-04-28 21:11:39,970 INFO L146 LiptonReduction]: Number of co-enabled transitions 4112 [2021-04-28 21:12:09,859 INFO L158 LiptonReduction]: Checked pairs total: 640 [2021-04-28 21:12:09,859 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:12:09,859 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34109 [2021-04-28 21:12:09,860 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 140 transitions, 803 flow [2021-04-28 21:12:09,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 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 21:12:09,860 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:12:09,861 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, 1, 1, 1] [2021-04-28 21:12:09,861 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 21:12:09,861 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:12:09,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:12:09,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1676602535, now seen corresponding path program 1 times [2021-04-28 21:12:09,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:12:09,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923475165] [2021-04-28 21:12:09,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:12:09,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:12:09,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:12:09,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 21:12:09,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:12:09,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:12:09,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:12:09,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:12:09,995 INFO L142 QuantifierPusher]: treesize reduction 10, result has 54.5 percent of original size [2021-04-28 21:12:09,996 INFO L147 QuantifierPusher]: treesize reduction 4, result has 66.7 percent of original size 8 [2021-04-28 21:12:10,033 INFO L142 QuantifierPusher]: treesize reduction 10, result has 54.5 percent of original size [2021-04-28 21:12:10,035 INFO L147 QuantifierPusher]: treesize reduction 4, result has 66.7 percent of original size 8 [2021-04-28 21:12:10,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:12:10,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 21:12:10,089 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 21:12:10,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923475165] [2021-04-28 21:12:10,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:12:10,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-28 21:12:10,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546227008] [2021-04-28 21:12:10,091 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-04-28 21:12:10,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:12:10,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-04-28 21:12:10,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-04-28 21:12:10,095 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 380 [2021-04-28 21:12:10,097 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 140 transitions, 803 flow. Second operand has 8 states, 8 states have (on average 217.125) internal successors, (1737), 8 states have internal predecessors, (1737), 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 21:12:10,097 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:12:10,097 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 380 [2021-04-28 21:12:10,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:12:40,095 INFO L129 PetriNetUnfolder]: 91828/204861 cut-off events. [2021-04-28 21:12:40,095 INFO L130 PetriNetUnfolder]: For 155799/181778 co-relation queries the response was YES. [2021-04-28 21:12:41,239 INFO L84 FinitePrefix]: Finished finitePrefix Result has 774862 conditions, 204861 events. 91828/204861 cut-off events. For 155799/181778 co-relation queries the response was YES. Maximal size of possible extension queue 52080. Compared 3403100 event pairs, 20 based on Foata normal form. 226/58987 useless extension candidates. Maximal degree in co-relation 774835. Up to 125955 conditions per place. [2021-04-28 21:12:41,648 INFO L132 encePairwiseOnDemand]: 373/380 looper letters, 35 selfloop transitions, 15 changer transitions 2/176 dead transitions. [2021-04-28 21:12:41,648 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 176 transitions, 1079 flow [2021-04-28 21:12:41,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-28 21:12:41,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-04-28 21:12:41,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1763 transitions. [2021-04-28 21:12:41,656 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5799342105263158 [2021-04-28 21:12:41,656 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1763 transitions. [2021-04-28 21:12:41,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1763 transitions. [2021-04-28 21:12:41,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:12:41,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1763 transitions. [2021-04-28 21:12:41,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 220.375) internal successors, (1763), 8 states have internal predecessors, (1763), 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 21:12:41,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 380.0) internal successors, (3420), 9 states have internal predecessors, (3420), 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 21:12:41,668 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 380.0) internal successors, (3420), 9 states have internal predecessors, (3420), 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 21:12:41,668 INFO L185 Difference]: Start difference. First operand has 91 places, 140 transitions, 803 flow. Second operand 8 states and 1763 transitions. [2021-04-28 21:12:41,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 176 transitions, 1079 flow Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown