/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/mix045_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 21:21:31,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 21:21:31,415 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 21:21:31,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 21:21:31,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 21:21:31,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 21:21:31,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 21:21:31,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 21:21:31,464 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 21:21:31,465 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 21:21:31,466 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 21:21:31,467 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 21:21:31,468 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 21:21:31,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 21:21:31,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 21:21:31,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 21:21:31,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 21:21:31,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 21:21:31,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 21:21:31,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 21:21:31,480 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 21:21:31,481 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 21:21:31,483 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 21:21:31,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 21:21:31,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 21:21:31,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 21:21:31,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 21:21:31,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 21:21:31,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 21:21:31,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 21:21:31,495 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 21:21:31,496 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 21:21:31,497 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 21:21:31,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 21:21:31,498 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 21:21:31,499 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 21:21:31,500 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 21:21:31,529 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 21:21:31,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 21:21:31,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 21:21:31,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 21:21:31,533 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 21:21:31,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 21:21:31,533 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 21:21:31,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 21:21:31,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 21:21:31,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 21:21:31,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 21:21:31,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 21:21:31,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 21:21:31,536 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 21:21:31,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 21:21:31,537 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 21:21:31,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 21:21:31,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 21:21:31,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 21:21:31,538 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 21:21:31,538 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 21:21:31,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 21:21:31,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 21:21:31,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 21:21:31,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 21:21:31,540 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 21:21:31,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 21:21:31,540 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 21:21:31,540 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 21:21:31,540 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 21:21:31,541 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 21:21:31,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 21:21:31,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 21:21:31,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 21:21:31,987 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 21:21:31,988 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 21:21:31,988 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix045_power.opt.i [2021-04-28 21:21:32,077 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ed464b93/f7dc10dfe5ba4487bcf3adafdb923cb1/FLAGda29801ab [2021-04-28 21:21:32,873 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 21:21:32,874 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix045_power.opt.i [2021-04-28 21:21:32,888 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ed464b93/f7dc10dfe5ba4487bcf3adafdb923cb1/FLAGda29801ab [2021-04-28 21:21:33,038 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ed464b93/f7dc10dfe5ba4487bcf3adafdb923cb1 [2021-04-28 21:21:33,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 21:21:33,098 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 21:21:33,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 21:21:33,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 21:21:33,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 21:21:33,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 09:21:33" (1/1) ... [2021-04-28 21:21:33,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1004679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:21:33, skipping insertion in model container [2021-04-28 21:21:33,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 09:21:33" (1/1) ... [2021-04-28 21:21:33,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 21:21:33,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 21:21:33,380 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/mix045_power.opt.i[950,963] [2021-04-28 21:21:33,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 21:21:33,640 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 21:21:33,652 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/mix045_power.opt.i[950,963] [2021-04-28 21:21:33,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 21:21:33,820 INFO L208 MainTranslator]: Completed translation [2021-04-28 21:21:33,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:21:33 WrapperNode [2021-04-28 21:21:33,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 21:21:33,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 21:21:33,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 21:21:33,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 21:21:33,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:21:33" (1/1) ... [2021-04-28 21:21:33,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:21:33" (1/1) ... [2021-04-28 21:21:33,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 21:21:33,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 21:21:33,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 21:21:33,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 21:21:33,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:21:33" (1/1) ... [2021-04-28 21:21:33,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:21:33" (1/1) ... [2021-04-28 21:21:33,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:21:33" (1/1) ... [2021-04-28 21:21:33,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:21:33" (1/1) ... [2021-04-28 21:21:33,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:21:33" (1/1) ... [2021-04-28 21:21:33,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:21:33" (1/1) ... [2021-04-28 21:21:33,927 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:21:33" (1/1) ... [2021-04-28 21:21:33,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 21:21:33,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 21:21:33,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 21:21:33,934 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 21:21:33,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:21:33" (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 21:21:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 21:21:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 21:21:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 21:21:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 21:21:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 21:21:34,042 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 21:21:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 21:21:34,042 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 21:21:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 21:21:34,043 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 21:21:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 21:21:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 21:21:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 21:21:34,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 21:21:34,045 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 21:21:36,098 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 21:21:36,098 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 21:21:36,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:21:36 BoogieIcfgContainer [2021-04-28 21:21:36,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 21:21:36,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 21:21:36,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 21:21:36,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 21:21:36,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 09:21:33" (1/3) ... [2021-04-28 21:21:36,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@739b87da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:21:36, skipping insertion in model container [2021-04-28 21:21:36,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:21:33" (2/3) ... [2021-04-28 21:21:36,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@739b87da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:21:36, skipping insertion in model container [2021-04-28 21:21:36,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:21:36" (3/3) ... [2021-04-28 21:21:36,109 INFO L111 eAbstractionObserver]: Analyzing ICFG mix045_power.opt.i [2021-04-28 21:21:36,117 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 21:21:36,121 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 21:21:36,122 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 21:21:36,163 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,164 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,164 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,164 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,164 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,165 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,165 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,165 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,165 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,165 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,166 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,166 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,166 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,166 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,166 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,167 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,167 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,167 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,167 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,167 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,168 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,168 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,168 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,168 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,168 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,168 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,168 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,169 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,169 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,169 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,170 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,170 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,170 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,170 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,171 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,171 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,171 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,171 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,172 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,172 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,172 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,172 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,173 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,173 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,173 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,173 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,173 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,173 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,174 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,174 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,174 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,174 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,174 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,175 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,175 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,175 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,175 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,175 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,176 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,176 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,176 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,176 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,176 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,177 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,177 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,177 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,177 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,177 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,178 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,178 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,178 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,178 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,181 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,181 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,181 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,183 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,183 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,183 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,183 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,185 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,186 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,186 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,186 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,187 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,187 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,187 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,187 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,187 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,187 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,188 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,188 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,188 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:21:36,190 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 21:21:36,212 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-04-28 21:21:36,236 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 21:21:36,236 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 21:21:36,236 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 21:21:36,236 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 21:21:36,236 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 21:21:36,237 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 21:21:36,237 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 21:21:36,237 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 21:21:36,250 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 108 places, 100 transitions, 215 flow [2021-04-28 21:21:36,294 INFO L129 PetriNetUnfolder]: 2/97 cut-off events. [2021-04-28 21:21:36,295 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:21:36,299 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 97 events. 2/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2021-04-28 21:21:36,300 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 100 transitions, 215 flow [2021-04-28 21:21:36,306 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 97 transitions, 203 flow [2021-04-28 21:21:36,307 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:21:36,323 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 97 transitions, 203 flow [2021-04-28 21:21:36,326 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 97 transitions, 203 flow [2021-04-28 21:21:36,329 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 97 transitions, 203 flow [2021-04-28 21:21:36,352 INFO L129 PetriNetUnfolder]: 2/97 cut-off events. [2021-04-28 21:21:36,352 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:21:36,353 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 97 events. 2/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2021-04-28 21:21:36,356 INFO L146 LiptonReduction]: Number of co-enabled transitions 1738 [2021-04-28 21:21:37,672 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 228 DAG size of output: 187 [2021-04-28 21:21:38,161 WARN L205 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 21:21:40,392 WARN L205 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-04-28 21:21:41,420 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 21:21:44,821 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 21:21:44,945 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:21:45,522 WARN L205 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 86 [2021-04-28 21:21:45,734 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 21:21:47,290 WARN L205 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 21:21:47,822 WARN L205 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 21:21:48,816 WARN L205 SmtUtils]: Spent 991.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:21:49,827 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:21:50,328 WARN L205 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 21:21:50,857 WARN L205 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 21:21:52,894 WARN L205 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 265 DAG size of output: 264 [2021-04-28 21:21:54,008 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 264 [2021-04-28 21:21:54,532 WARN L205 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 21:21:55,047 WARN L205 SmtUtils]: Spent 513.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 21:21:56,108 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 21:21:57,200 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 21:22:00,722 WARN L205 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 21:22:01,252 WARN L205 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 21:22:02,335 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 21:22:03,472 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 21:22:04,019 WARN L205 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 21:22:04,570 WARN L205 SmtUtils]: Spent 548.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 21:22:05,722 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 21:22:06,890 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 21:22:07,524 WARN L205 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 21:22:08,132 WARN L205 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 21:22:10,640 WARN L205 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 268 DAG size of output: 267 [2021-04-28 21:22:11,864 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:22:12,464 WARN L205 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 21:22:13,061 WARN L205 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 21:22:15,523 WARN L205 SmtUtils]: Spent 2.46 s on a formula simplification. DAG size of input: 267 DAG size of output: 266 [2021-04-28 21:22:16,739 WARN L205 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 266 [2021-04-28 21:22:19,531 WARN L205 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 21:22:20,157 WARN L205 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 21:22:21,441 WARN L205 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 21:22:22,706 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 21:22:23,331 WARN L205 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 21:22:23,950 WARN L205 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 21:22:25,218 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 21:22:26,520 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 21:22:27,167 WARN L205 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 21:22:27,805 WARN L205 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 21:22:29,084 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:22:30,388 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:22:31,127 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-04-28 21:22:32,233 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-28 21:22:32,340 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-28 21:22:32,444 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-28 21:22:32,549 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-28 21:22:36,764 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:22:36,971 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:22:37,172 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:22:37,276 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:22:37,765 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:22:37,867 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:22:37,979 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:22:38,090 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:22:38,218 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:22:38,338 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:22:38,472 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:22:38,595 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:22:38,703 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:22:38,806 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:22:38,918 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:22:39,043 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:22:39,169 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:22:39,291 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:22:39,415 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:22:39,528 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:22:39,661 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:22:39,791 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:22:39,921 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:22:40,052 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:22:40,168 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:22:40,286 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:22:40,413 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:22:40,531 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:22:40,642 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:22:40,745 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:22:40,854 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:22:40,956 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:22:41,061 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:22:41,165 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:22:41,679 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-28 21:22:41,784 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-28 21:22:41,890 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-28 21:22:41,995 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-28 21:22:44,020 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:22:44,240 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:22:44,456 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:22:44,673 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:22:44,846 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:22:45,022 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:22:45,198 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:22:45,376 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:22:45,552 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:22:45,731 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:22:45,921 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:22:46,124 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:22:46,336 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:22:46,547 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:22:46,756 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:22:46,968 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:22:47,180 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:22:47,393 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:22:47,612 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:22:47,829 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:22:48,062 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:22:48,288 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:22:48,518 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:22:48,740 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:22:49,311 WARN L205 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2021-04-28 21:22:49,582 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-04-28 21:22:50,171 WARN L205 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2021-04-28 21:22:50,453 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-04-28 21:22:50,596 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:22:50,739 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:22:50,873 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:22:51,009 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:22:51,158 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:22:51,306 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:22:51,462 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:22:51,617 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:22:51,774 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:22:51,926 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:22:52,095 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:22:52,261 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:22:52,488 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:22:52,714 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:22:52,953 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:22:53,195 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:22:53,374 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:22:53,561 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:22:53,752 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:22:53,942 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:22:54,110 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:22:54,283 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:22:54,450 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:22:54,621 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:22:54,743 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:22:54,867 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:22:54,987 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:22:55,110 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:22:55,728 WARN L205 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2021-04-28 21:22:56,015 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-04-28 21:22:56,627 WARN L205 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2021-04-28 21:22:56,919 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-04-28 21:22:57,062 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:22:57,207 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:22:57,352 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:22:57,511 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:22:57,718 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 21:22:57,924 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 21:22:58,145 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 21:22:58,359 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 21:22:58,517 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:22:58,671 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:22:58,818 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:22:58,968 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:22:59,167 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:22:59,369 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:22:59,568 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:22:59,773 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:23:00,006 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:23:00,235 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:23:00,462 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:23:00,689 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:23:00,817 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:23:00,939 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:23:01,068 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:23:01,193 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:23:01,253 INFO L158 LiptonReduction]: Checked pairs total: 14838 [2021-04-28 21:23:01,254 INFO L160 LiptonReduction]: Total number of compositions: 223 [2021-04-28 21:23:01,258 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 84952 [2021-04-28 21:23:01,287 INFO L129 PetriNetUnfolder]: 0/69 cut-off events. [2021-04-28 21:23:01,288 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:23:01,288 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:23:01,289 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:23:01,289 INFO L428 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:23:01,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:23:01,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1849301874, now seen corresponding path program 1 times [2021-04-28 21:23:01,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:23:01,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227266546] [2021-04-28 21:23:01,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:23:01,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:23:01,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:01,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:23:01,562 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 21:23:01,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227266546] [2021-04-28 21:23:01,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:23:01,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 21:23:01,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375834294] [2021-04-28 21:23:01,574 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:23:01,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:23:01,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:23:01,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:23:01,592 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 323 [2021-04-28 21:23:01,598 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 121 transitions, 251 flow. Second operand has 3 states, 3 states have (on average 250.66666666666666) internal successors, (752), 3 states have internal predecessors, (752), 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 21:23:01,598 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:23:01,598 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 323 [2021-04-28 21:23:01,600 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:23:02,007 INFO L129 PetriNetUnfolder]: 199/622 cut-off events. [2021-04-28 21:23:02,008 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:23:02,011 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1002 conditions, 622 events. 199/622 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 4815 event pairs, 15 based on Foata normal form. 10/285 useless extension candidates. Maximal degree in co-relation 934. Up to 313 conditions per place. [2021-04-28 21:23:02,013 INFO L132 encePairwiseOnDemand]: 305/323 looper letters, 7 selfloop transitions, 4 changer transitions 88/132 dead transitions. [2021-04-28 21:23:02,014 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 132 transitions, 367 flow [2021-04-28 21:23:02,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:23:02,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:23:02,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 801 transitions. [2021-04-28 21:23:02,033 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.826625386996904 [2021-04-28 21:23:02,034 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 801 transitions. [2021-04-28 21:23:02,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 801 transitions. [2021-04-28 21:23:02,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:23:02,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 801 transitions. [2021-04-28 21:23:02,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 267.0) internal successors, (801), 3 states have internal predecessors, (801), 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 21:23:02,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 323.0) internal successors, (1292), 4 states have internal predecessors, (1292), 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 21:23:02,057 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 323.0) internal successors, (1292), 4 states have internal predecessors, (1292), 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 21:23:02,059 INFO L185 Difference]: Start difference. First operand has 129 places, 121 transitions, 251 flow. Second operand 3 states and 801 transitions. [2021-04-28 21:23:02,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 132 transitions, 367 flow [2021-04-28 21:23:02,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 132 transitions, 364 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 21:23:02,066 INFO L241 Difference]: Finished difference. Result has 125 places, 41 transitions, 96 flow [2021-04-28 21:23:02,069 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=125, PETRI_TRANSITIONS=41} [2021-04-28 21:23:02,069 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -4 predicate places. [2021-04-28 21:23:02,070 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:23:02,070 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 41 transitions, 96 flow [2021-04-28 21:23:02,070 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 41 transitions, 96 flow [2021-04-28 21:23:02,071 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 41 transitions, 96 flow [2021-04-28 21:23:02,076 INFO L129 PetriNetUnfolder]: 0/41 cut-off events. [2021-04-28 21:23:02,076 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:23:02,077 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 41 events. 0/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 141 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-28 21:23:02,078 INFO L146 LiptonReduction]: Number of co-enabled transitions 972 [2021-04-28 21:23:02,368 INFO L158 LiptonReduction]: Checked pairs total: 906 [2021-04-28 21:23:02,369 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:23:02,369 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 299 [2021-04-28 21:23:02,371 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 41 transitions, 96 flow [2021-04-28 21:23:02,371 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 250.66666666666666) internal successors, (752), 3 states have internal predecessors, (752), 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 21:23:02,372 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:23:02,372 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:23:02,372 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 21:23:02,372 INFO L428 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:23:02,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:23:02,373 INFO L82 PathProgramCache]: Analyzing trace with hash -937276260, now seen corresponding path program 1 times [2021-04-28 21:23:02,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:23:02,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513598279] [2021-04-28 21:23:02,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:23:02,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:23:02,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:02,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:23:02,528 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 21:23:02,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513598279] [2021-04-28 21:23:02,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:23:02,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 21:23:02,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830222407] [2021-04-28 21:23:02,535 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:23:02,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:23:02,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:23:02,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:23:02,538 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 323 [2021-04-28 21:23:02,541 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 41 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 247.66666666666666) internal successors, (743), 3 states have internal predecessors, (743), 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 21:23:02,541 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:23:02,541 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 323 [2021-04-28 21:23:02,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:23:02,566 INFO L129 PetriNetUnfolder]: 3/57 cut-off events. [2021-04-28 21:23:02,566 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:23:02,567 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 57 events. 3/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 206 event pairs, 1 based on Foata normal form. 1/34 useless extension candidates. Maximal degree in co-relation 71. Up to 10 conditions per place. [2021-04-28 21:23:02,567 INFO L132 encePairwiseOnDemand]: 319/323 looper letters, 3 selfloop transitions, 3 changer transitions 0/43 dead transitions. [2021-04-28 21:23:02,567 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 43 transitions, 112 flow [2021-04-28 21:23:02,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:23:02,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:23:02,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 748 transitions. [2021-04-28 21:23:02,572 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7719298245614035 [2021-04-28 21:23:02,572 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 748 transitions. [2021-04-28 21:23:02,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 748 transitions. [2021-04-28 21:23:02,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:23:02,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 748 transitions. [2021-04-28 21:23:02,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 249.33333333333334) internal successors, (748), 3 states have internal predecessors, (748), 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 21:23:02,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 323.0) internal successors, (1292), 4 states have internal predecessors, (1292), 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 21:23:02,580 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 323.0) internal successors, (1292), 4 states have internal predecessors, (1292), 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 21:23:02,580 INFO L185 Difference]: Start difference. First operand has 50 places, 41 transitions, 96 flow. Second operand 3 states and 748 transitions. [2021-04-28 21:23:02,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 43 transitions, 112 flow [2021-04-28 21:23:02,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 43 transitions, 104 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 21:23:02,582 INFO L241 Difference]: Finished difference. Result has 51 places, 43 transitions, 107 flow [2021-04-28 21:23:02,582 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=107, PETRI_PLACES=51, PETRI_TRANSITIONS=43} [2021-04-28 21:23:02,583 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -78 predicate places. [2021-04-28 21:23:02,583 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:23:02,583 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 43 transitions, 107 flow [2021-04-28 21:23:02,583 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 43 transitions, 107 flow [2021-04-28 21:23:02,584 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 43 transitions, 107 flow [2021-04-28 21:23:02,592 INFO L129 PetriNetUnfolder]: 3/57 cut-off events. [2021-04-28 21:23:02,592 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:23:02,593 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 57 events. 3/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 214 event pairs, 1 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 70. Up to 10 conditions per place. [2021-04-28 21:23:02,594 INFO L146 LiptonReduction]: Number of co-enabled transitions 1058 [2021-04-28 21:23:03,259 INFO L158 LiptonReduction]: Checked pairs total: 1356 [2021-04-28 21:23:03,259 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-28 21:23:03,259 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 676 [2021-04-28 21:23:03,261 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 43 transitions, 107 flow [2021-04-28 21:23:03,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 247.66666666666666) internal successors, (743), 3 states have internal predecessors, (743), 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 21:23:03,262 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:23:03,262 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:23:03,262 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 21:23:03,262 INFO L428 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:23:03,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:23:03,263 INFO L82 PathProgramCache]: Analyzing trace with hash 189680049, now seen corresponding path program 1 times [2021-04-28 21:23:03,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:23:03,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742204559] [2021-04-28 21:23:03,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:23:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:23:03,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:03,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:23:03,383 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 21:23:03,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742204559] [2021-04-28 21:23:03,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:23:03,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 21:23:03,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488694067] [2021-04-28 21:23:03,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:23:03,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:23:03,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:23:03,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:23:03,387 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 324 [2021-04-28 21:23:03,388 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 107 flow. Second operand has 3 states, 3 states have (on average 236.66666666666666) internal successors, (710), 3 states have internal predecessors, (710), 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 21:23:03,388 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:23:03,389 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 324 [2021-04-28 21:23:03,389 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:23:03,408 INFO L129 PetriNetUnfolder]: 3/57 cut-off events. [2021-04-28 21:23:03,408 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-04-28 21:23:03,408 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 57 events. 3/57 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 214 event pairs, 1 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 74. Up to 10 conditions per place. [2021-04-28 21:23:03,409 INFO L132 encePairwiseOnDemand]: 321/324 looper letters, 1 selfloop transitions, 2 changer transitions 0/43 dead transitions. [2021-04-28 21:23:03,409 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 43 transitions, 113 flow [2021-04-28 21:23:03,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:23:03,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:23:03,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 712 transitions. [2021-04-28 21:23:03,416 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7325102880658436 [2021-04-28 21:23:03,416 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 712 transitions. [2021-04-28 21:23:03,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 712 transitions. [2021-04-28 21:23:03,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:23:03,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 712 transitions. [2021-04-28 21:23:03,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 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 21:23:03,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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 21:23:03,428 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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 21:23:03,428 INFO L185 Difference]: Start difference. First operand has 51 places, 43 transitions, 107 flow. Second operand 3 states and 712 transitions. [2021-04-28 21:23:03,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 43 transitions, 113 flow [2021-04-28 21:23:03,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 43 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 21:23:03,430 INFO L241 Difference]: Finished difference. Result has 53 places, 43 transitions, 112 flow [2021-04-28 21:23:03,430 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=53, PETRI_TRANSITIONS=43} [2021-04-28 21:23:03,430 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -76 predicate places. [2021-04-28 21:23:03,431 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:23:03,431 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 43 transitions, 112 flow [2021-04-28 21:23:03,432 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 43 transitions, 112 flow [2021-04-28 21:23:03,432 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 43 transitions, 112 flow [2021-04-28 21:23:03,441 INFO L129 PetriNetUnfolder]: 3/57 cut-off events. [2021-04-28 21:23:03,441 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-28 21:23:03,442 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 57 events. 3/57 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 211 event pairs, 1 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 73. Up to 10 conditions per place. [2021-04-28 21:23:03,443 INFO L146 LiptonReduction]: Number of co-enabled transitions 1048 [2021-04-28 21:23:03,695 INFO L158 LiptonReduction]: Checked pairs total: 597 [2021-04-28 21:23:03,695 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:23:03,695 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 264 [2021-04-28 21:23:03,697 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 43 transitions, 112 flow [2021-04-28 21:23:03,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 236.66666666666666) internal successors, (710), 3 states have internal predecessors, (710), 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 21:23:03,697 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:23:03,698 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:23:03,698 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 21:23:03,698 INFO L428 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:23:03,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:23:03,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1585118109, now seen corresponding path program 1 times [2021-04-28 21:23:03,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:23:03,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504746043] [2021-04-28 21:23:03,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:23:03,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:23:03,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:03,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 21:23:03,899 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-04-28 21:23:03,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-04-28 21:23:03,950 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-04-28 21:23:03,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-04-28 21:23:03,993 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 21:23:03,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504746043] [2021-04-28 21:23:03,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:23:03,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:23:03,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516854987] [2021-04-28 21:23:03,994 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 21:23:03,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:23:03,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 21:23:03,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 21:23:04,002 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 324 [2021-04-28 21:23:04,004 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 43 transitions, 112 flow. Second operand has 5 states, 5 states have (on average 190.8) internal successors, (954), 5 states have internal predecessors, (954), 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 21:23:04,004 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:23:04,006 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 324 [2021-04-28 21:23:04,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:23:04,178 INFO L129 PetriNetUnfolder]: 86/234 cut-off events. [2021-04-28 21:23:04,178 INFO L130 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2021-04-28 21:23:04,180 INFO L84 FinitePrefix]: Finished finitePrefix Result has 449 conditions, 234 events. 86/234 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1307 event pairs, 29 based on Foata normal form. 1/158 useless extension candidates. Maximal degree in co-relation 437. Up to 137 conditions per place. [2021-04-28 21:23:04,182 INFO L132 encePairwiseOnDemand]: 317/324 looper letters, 11 selfloop transitions, 8 changer transitions 0/52 dead transitions. [2021-04-28 21:23:04,182 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 52 transitions, 171 flow [2021-04-28 21:23:04,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 21:23:04,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 21:23:04,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 778 transitions. [2021-04-28 21:23:04,187 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6003086419753086 [2021-04-28 21:23:04,187 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 778 transitions. [2021-04-28 21:23:04,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 778 transitions. [2021-04-28 21:23:04,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:23:04,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 778 transitions. [2021-04-28 21:23:04,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 194.5) internal successors, (778), 4 states have internal predecessors, (778), 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 21:23:04,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 324.0) internal successors, (1620), 5 states have internal predecessors, (1620), 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 21:23:04,195 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 324.0) internal successors, (1620), 5 states have internal predecessors, (1620), 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 21:23:04,195 INFO L185 Difference]: Start difference. First operand has 53 places, 43 transitions, 112 flow. Second operand 4 states and 778 transitions. [2021-04-28 21:23:04,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 52 transitions, 171 flow [2021-04-28 21:23:04,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 52 transitions, 165 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 21:23:04,198 INFO L241 Difference]: Finished difference. Result has 56 places, 50 transitions, 165 flow [2021-04-28 21:23:04,198 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=165, PETRI_PLACES=56, PETRI_TRANSITIONS=50} [2021-04-28 21:23:04,198 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -73 predicate places. [2021-04-28 21:23:04,198 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:23:04,199 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 50 transitions, 165 flow [2021-04-28 21:23:04,199 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 50 transitions, 165 flow [2021-04-28 21:23:04,199 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 50 transitions, 165 flow [2021-04-28 21:23:04,217 INFO L129 PetriNetUnfolder]: 18/119 cut-off events. [2021-04-28 21:23:04,217 INFO L130 PetriNetUnfolder]: For 20/21 co-relation queries the response was YES. [2021-04-28 21:23:04,218 INFO L84 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 119 events. 18/119 cut-off events. For 20/21 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 691 event pairs, 3 based on Foata normal form. 1/66 useless extension candidates. Maximal degree in co-relation 198. Up to 21 conditions per place. [2021-04-28 21:23:04,221 INFO L146 LiptonReduction]: Number of co-enabled transitions 1274 [2021-04-28 21:23:04,311 INFO L158 LiptonReduction]: Checked pairs total: 410 [2021-04-28 21:23:04,311 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:23:04,311 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 113 [2021-04-28 21:23:04,312 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 50 transitions, 165 flow [2021-04-28 21:23:04,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 190.8) internal successors, (954), 5 states have internal predecessors, (954), 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 21:23:04,314 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:23:04,314 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:23:04,314 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 21:23:04,314 INFO L428 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:23:04,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:23:04,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1893790525, now seen corresponding path program 1 times [2021-04-28 21:23:04,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:23:04,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033492013] [2021-04-28 21:23:04,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:23:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:23:04,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:04,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:23:04,450 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-04-28 21:23:04,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-04-28 21:23:04,488 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-04-28 21:23:04,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-04-28 21:23:04,531 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-04-28 21:23:04,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-04-28 21:23:04,573 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 21:23:04,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033492013] [2021-04-28 21:23:04,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:23:04,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 21:23:04,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995076617] [2021-04-28 21:23:04,575 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 21:23:04,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:23:04,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 21:23:04,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-28 21:23:04,577 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 324 [2021-04-28 21:23:04,579 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 50 transitions, 165 flow. Second operand has 6 states, 6 states have (on average 199.83333333333334) internal successors, (1199), 6 states have internal predecessors, (1199), 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 21:23:04,580 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:23:04,580 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 324 [2021-04-28 21:23:04,580 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:23:04,772 INFO L129 PetriNetUnfolder]: 106/272 cut-off events. [2021-04-28 21:23:04,772 INFO L130 PetriNetUnfolder]: For 69/71 co-relation queries the response was YES. [2021-04-28 21:23:04,773 INFO L84 FinitePrefix]: Finished finitePrefix Result has 652 conditions, 272 events. 106/272 cut-off events. For 69/71 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1476 event pairs, 5 based on Foata normal form. 4/186 useless extension candidates. Maximal degree in co-relation 638. Up to 157 conditions per place. [2021-04-28 21:23:04,775 INFO L132 encePairwiseOnDemand]: 315/324 looper letters, 9 selfloop transitions, 19 changer transitions 0/61 dead transitions. [2021-04-28 21:23:04,776 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 61 transitions, 254 flow [2021-04-28 21:23:04,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:23:04,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:23:04,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1016 transitions. [2021-04-28 21:23:04,781 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6271604938271605 [2021-04-28 21:23:04,781 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1016 transitions. [2021-04-28 21:23:04,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1016 transitions. [2021-04-28 21:23:04,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:23:04,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1016 transitions. [2021-04-28 21:23:04,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 203.2) internal successors, (1016), 5 states have internal predecessors, (1016), 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 21:23:04,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 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 21:23:04,791 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 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 21:23:04,791 INFO L185 Difference]: Start difference. First operand has 56 places, 50 transitions, 165 flow. Second operand 5 states and 1016 transitions. [2021-04-28 21:23:04,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 61 transitions, 254 flow [2021-04-28 21:23:04,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 61 transitions, 254 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 21:23:04,795 INFO L241 Difference]: Finished difference. Result has 62 places, 59 transitions, 258 flow [2021-04-28 21:23:04,795 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=258, PETRI_PLACES=62, PETRI_TRANSITIONS=59} [2021-04-28 21:23:04,795 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -67 predicate places. [2021-04-28 21:23:04,795 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:23:04,796 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 59 transitions, 258 flow [2021-04-28 21:23:04,796 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 59 transitions, 258 flow [2021-04-28 21:23:04,796 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 59 transitions, 258 flow [2021-04-28 21:23:04,843 INFO L129 PetriNetUnfolder]: 80/287 cut-off events. [2021-04-28 21:23:04,843 INFO L130 PetriNetUnfolder]: For 149/171 co-relation queries the response was YES. [2021-04-28 21:23:04,845 INFO L84 FinitePrefix]: Finished finitePrefix Result has 689 conditions, 287 events. 80/287 cut-off events. For 149/171 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 1916 event pairs, 11 based on Foata normal form. 3/170 useless extension candidates. Maximal degree in co-relation 673. Up to 101 conditions per place. [2021-04-28 21:23:04,850 INFO L146 LiptonReduction]: Number of co-enabled transitions 1520 [2021-04-28 21:23:04,889 INFO L158 LiptonReduction]: Checked pairs total: 302 [2021-04-28 21:23:04,889 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:23:04,890 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 95 [2021-04-28 21:23:04,891 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 59 transitions, 258 flow [2021-04-28 21:23:04,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 199.83333333333334) internal successors, (1199), 6 states have internal predecessors, (1199), 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 21:23:04,892 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:23:04,892 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:23:04,892 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 21:23:04,893 INFO L428 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:23:04,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:23:04,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1264973123, now seen corresponding path program 2 times [2021-04-28 21:23:04,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:23:04,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499621975] [2021-04-28 21:23:04,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:23:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:23:04,978 INFO L142 QuantifierPusher]: treesize reduction 30, result has 25.0 percent of original size [2021-04-28 21:23:04,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:23:04,991 INFO L142 QuantifierPusher]: treesize reduction 30, result has 30.2 percent of original size [2021-04-28 21:23:04,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:23:05,012 INFO L142 QuantifierPusher]: treesize reduction 40, result has 54.0 percent of original size [2021-04-28 21:23:05,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-28 21:23:05,056 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-04-28 21:23:05,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-04-28 21:23:05,105 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 21:23:05,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499621975] [2021-04-28 21:23:05,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:23:05,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 21:23:05,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046031315] [2021-04-28 21:23:05,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 21:23:05,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:23:05,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 21:23:05,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-28 21:23:05,109 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 324 [2021-04-28 21:23:05,111 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 59 transitions, 258 flow. Second operand has 6 states, 6 states have (on average 196.83333333333334) internal successors, (1181), 6 states have internal predecessors, (1181), 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 21:23:05,111 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:23:05,111 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 324 [2021-04-28 21:23:05,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:23:05,326 INFO L129 PetriNetUnfolder]: 108/284 cut-off events. [2021-04-28 21:23:05,326 INFO L130 PetriNetUnfolder]: For 264/274 co-relation queries the response was YES. [2021-04-28 21:23:05,329 INFO L84 FinitePrefix]: Finished finitePrefix Result has 965 conditions, 284 events. 108/284 cut-off events. For 264/274 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1644 event pairs, 5 based on Foata normal form. 8/202 useless extension candidates. Maximal degree in co-relation 947. Up to 159 conditions per place. [2021-04-28 21:23:05,331 INFO L132 encePairwiseOnDemand]: 315/324 looper letters, 10 selfloop transitions, 20 changer transitions 0/63 dead transitions. [2021-04-28 21:23:05,331 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 63 transitions, 342 flow [2021-04-28 21:23:05,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:23:05,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:23:05,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1001 transitions. [2021-04-28 21:23:05,337 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6179012345679012 [2021-04-28 21:23:05,337 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1001 transitions. [2021-04-28 21:23:05,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1001 transitions. [2021-04-28 21:23:05,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:23:05,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1001 transitions. [2021-04-28 21:23:05,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 200.2) internal successors, (1001), 5 states have internal predecessors, (1001), 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 21:23:05,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 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 21:23:05,345 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 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 21:23:05,346 INFO L185 Difference]: Start difference. First operand has 62 places, 59 transitions, 258 flow. Second operand 5 states and 1001 transitions. [2021-04-28 21:23:05,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 63 transitions, 342 flow [2021-04-28 21:23:05,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 63 transitions, 320 flow, removed 5 selfloop flow, removed 1 redundant places. [2021-04-28 21:23:05,351 INFO L241 Difference]: Finished difference. Result has 66 places, 61 transitions, 302 flow [2021-04-28 21:23:05,351 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=302, PETRI_PLACES=66, PETRI_TRANSITIONS=61} [2021-04-28 21:23:05,352 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -63 predicate places. [2021-04-28 21:23:05,352 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:23:05,352 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 61 transitions, 302 flow [2021-04-28 21:23:05,352 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 61 transitions, 302 flow [2021-04-28 21:23:05,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 61 transitions, 302 flow [2021-04-28 21:23:05,405 INFO L129 PetriNetUnfolder]: 87/280 cut-off events. [2021-04-28 21:23:05,405 INFO L130 PetriNetUnfolder]: For 287/308 co-relation queries the response was YES. [2021-04-28 21:23:05,407 INFO L84 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 280 events. 87/280 cut-off events. For 287/308 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 1785 event pairs, 21 based on Foata normal form. 2/173 useless extension candidates. Maximal degree in co-relation 788. Up to 107 conditions per place. [2021-04-28 21:23:05,413 INFO L146 LiptonReduction]: Number of co-enabled transitions 1546 [2021-04-28 21:23:05,450 INFO L158 LiptonReduction]: Checked pairs total: 339 [2021-04-28 21:23:05,451 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:23:05,451 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 99 [2021-04-28 21:23:05,452 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 61 transitions, 302 flow [2021-04-28 21:23:05,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 196.83333333333334) internal successors, (1181), 6 states have internal predecessors, (1181), 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 21:23:05,453 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:23:05,453 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:23:05,453 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 21:23:05,453 INFO L428 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:23:05,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:23:05,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1260514703, now seen corresponding path program 3 times [2021-04-28 21:23:05,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:23:05,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896578461] [2021-04-28 21:23:05,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:23:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:23:05,535 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-04-28 21:23:05,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-04-28 21:23:05,579 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-04-28 21:23:05,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-04-28 21:23:05,634 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.6 percent of original size [2021-04-28 21:23:05,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-04-28 21:23:05,687 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-04-28 21:23:05,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-04-28 21:23:05,746 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 21:23:05,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896578461] [2021-04-28 21:23:05,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:23:05,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 21:23:05,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364196666] [2021-04-28 21:23:05,747 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 21:23:05,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:23:05,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 21:23:05,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-28 21:23:05,750 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 324 [2021-04-28 21:23:05,752 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 61 transitions, 302 flow. Second operand has 6 states, 6 states have (on average 195.83333333333334) internal successors, (1175), 6 states have internal predecessors, (1175), 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 21:23:05,752 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:23:05,752 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 324 [2021-04-28 21:23:05,752 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:23:06,003 INFO L129 PetriNetUnfolder]: 111/339 cut-off events. [2021-04-28 21:23:06,003 INFO L130 PetriNetUnfolder]: For 473/491 co-relation queries the response was YES. [2021-04-28 21:23:06,006 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1216 conditions, 339 events. 111/339 cut-off events. For 473/491 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 2249 event pairs, 5 based on Foata normal form. 11/237 useless extension candidates. Maximal degree in co-relation 1196. Up to 150 conditions per place. [2021-04-28 21:23:06,009 INFO L132 encePairwiseOnDemand]: 315/324 looper letters, 12 selfloop transitions, 27 changer transitions 0/72 dead transitions. [2021-04-28 21:23:06,009 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 72 transitions, 455 flow [2021-04-28 21:23:06,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:23:06,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:23:06,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 996 transitions. [2021-04-28 21:23:06,014 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6148148148148148 [2021-04-28 21:23:06,015 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 996 transitions. [2021-04-28 21:23:06,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 996 transitions. [2021-04-28 21:23:06,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:23:06,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 996 transitions. [2021-04-28 21:23:06,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 199.2) internal successors, (996), 5 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 21:23:06,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 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 21:23:06,023 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 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 21:23:06,023 INFO L185 Difference]: Start difference. First operand has 66 places, 61 transitions, 302 flow. Second operand 5 states and 996 transitions. [2021-04-28 21:23:06,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 72 transitions, 455 flow [2021-04-28 21:23:06,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 72 transitions, 411 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-04-28 21:23:06,028 INFO L241 Difference]: Finished difference. Result has 68 places, 70 transitions, 409 flow [2021-04-28 21:23:06,029 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=409, PETRI_PLACES=68, PETRI_TRANSITIONS=70} [2021-04-28 21:23:06,029 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -61 predicate places. [2021-04-28 21:23:06,029 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:23:06,029 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 70 transitions, 409 flow [2021-04-28 21:23:06,030 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 70 transitions, 409 flow [2021-04-28 21:23:06,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 70 transitions, 409 flow [2021-04-28 21:23:06,095 INFO L129 PetriNetUnfolder]: 102/344 cut-off events. [2021-04-28 21:23:06,096 INFO L130 PetriNetUnfolder]: For 518/543 co-relation queries the response was YES. [2021-04-28 21:23:06,100 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1121 conditions, 344 events. 102/344 cut-off events. For 518/543 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 2356 event pairs, 4 based on Foata normal form. 0/220 useless extension candidates. Maximal degree in co-relation 1102. Up to 130 conditions per place. [2021-04-28 21:23:06,111 INFO L146 LiptonReduction]: Number of co-enabled transitions 1700 [2021-04-28 21:23:06,121 INFO L158 LiptonReduction]: Checked pairs total: 476 [2021-04-28 21:23:06,121 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:23:06,121 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 92 [2021-04-28 21:23:06,123 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 70 transitions, 409 flow [2021-04-28 21:23:06,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 195.83333333333334) internal successors, (1175), 6 states have internal predecessors, (1175), 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 21:23:06,124 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:23:06,124 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:23:06,124 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 21:23:06,124 INFO L428 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:23:06,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:23:06,125 INFO L82 PathProgramCache]: Analyzing trace with hash -878852695, now seen corresponding path program 4 times [2021-04-28 21:23:06,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:23:06,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387210131] [2021-04-28 21:23:06,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:23:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:23:06,207 INFO L142 QuantifierPusher]: treesize reduction 30, result has 25.0 percent of original size [2021-04-28 21:23:06,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:23:06,222 INFO L142 QuantifierPusher]: treesize reduction 40, result has 54.0 percent of original size [2021-04-28 21:23:06,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-28 21:23:06,261 INFO L142 QuantifierPusher]: treesize reduction 40, result has 56.0 percent of original size [2021-04-28 21:23:06,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-04-28 21:23:06,311 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.6 percent of original size [2021-04-28 21:23:06,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-04-28 21:23:06,366 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 21:23:06,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387210131] [2021-04-28 21:23:06,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:23:06,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 21:23:06,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244868328] [2021-04-28 21:23:06,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 21:23:06,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:23:06,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 21:23:06,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-28 21:23:06,370 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 324 [2021-04-28 21:23:06,373 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 70 transitions, 409 flow. Second operand has 6 states, 6 states have (on average 195.83333333333334) internal successors, (1175), 6 states have internal predecessors, (1175), 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 21:23:06,373 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:23:06,373 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 324 [2021-04-28 21:23:06,373 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:23:06,602 INFO L129 PetriNetUnfolder]: 110/350 cut-off events. [2021-04-28 21:23:06,603 INFO L130 PetriNetUnfolder]: For 790/838 co-relation queries the response was YES. [2021-04-28 21:23:06,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1469 conditions, 350 events. 110/350 cut-off events. For 790/838 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 2368 event pairs, 5 based on Foata normal form. 9/246 useless extension candidates. Maximal degree in co-relation 1448. Up to 185 conditions per place. [2021-04-28 21:23:06,608 INFO L132 encePairwiseOnDemand]: 316/324 looper letters, 21 selfloop transitions, 23 changer transitions 0/77 dead transitions. [2021-04-28 21:23:06,608 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 77 transitions, 564 flow [2021-04-28 21:23:06,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:23:06,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:23:06,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 991 transitions. [2021-04-28 21:23:06,614 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6117283950617284 [2021-04-28 21:23:06,614 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 991 transitions. [2021-04-28 21:23:06,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 991 transitions. [2021-04-28 21:23:06,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:23:06,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 991 transitions. [2021-04-28 21:23:06,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 198.2) internal successors, (991), 5 states have internal predecessors, (991), 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 21:23:06,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 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 21:23:06,622 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 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 21:23:06,622 INFO L185 Difference]: Start difference. First operand has 68 places, 70 transitions, 409 flow. Second operand 5 states and 991 transitions. [2021-04-28 21:23:06,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 77 transitions, 564 flow [2021-04-28 21:23:06,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 77 transitions, 544 flow, removed 10 selfloop flow, removed 0 redundant places. [2021-04-28 21:23:06,631 INFO L241 Difference]: Finished difference. Result has 73 places, 74 transitions, 495 flow [2021-04-28 21:23:06,631 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=495, PETRI_PLACES=73, PETRI_TRANSITIONS=74} [2021-04-28 21:23:06,631 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -56 predicate places. [2021-04-28 21:23:06,631 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:23:06,632 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 74 transitions, 495 flow [2021-04-28 21:23:06,632 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 74 transitions, 495 flow [2021-04-28 21:23:06,633 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 74 transitions, 495 flow [2021-04-28 21:23:06,695 INFO L129 PetriNetUnfolder]: 99/355 cut-off events. [2021-04-28 21:23:06,695 INFO L130 PetriNetUnfolder]: For 687/703 co-relation queries the response was YES. [2021-04-28 21:23:06,698 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1309 conditions, 355 events. 99/355 cut-off events. For 687/703 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 2502 event pairs, 4 based on Foata normal form. 6/237 useless extension candidates. Maximal degree in co-relation 1287. Up to 138 conditions per place. [2021-04-28 21:23:06,705 INFO L146 LiptonReduction]: Number of co-enabled transitions 1794 [2021-04-28 21:23:06,777 INFO L158 LiptonReduction]: Checked pairs total: 564 [2021-04-28 21:23:06,777 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:23:06,777 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 146 [2021-04-28 21:23:06,778 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 74 transitions, 495 flow [2021-04-28 21:23:06,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 195.83333333333334) internal successors, (1175), 6 states have internal predecessors, (1175), 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 21:23:06,780 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:23:06,780 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:23:06,780 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 21:23:06,780 INFO L428 AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:23:06,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:23:06,782 INFO L82 PathProgramCache]: Analyzing trace with hash 675381310, now seen corresponding path program 1 times [2021-04-28 21:23:06,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:23:06,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673866865] [2021-04-28 21:23:06,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:23:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:23:06,900 INFO L142 QuantifierPusher]: treesize reduction 31, result has 57.5 percent of original size [2021-04-28 21:23:06,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-04-28 21:23:06,947 INFO L142 QuantifierPusher]: treesize reduction 31, result has 59.2 percent of original size [2021-04-28 21:23:06,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-04-28 21:23:07,004 INFO L142 QuantifierPusher]: treesize reduction 30, result has 30.2 percent of original size [2021-04-28 21:23:07,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:23:07,022 INFO L142 QuantifierPusher]: treesize reduction 31, result has 57.5 percent of original size [2021-04-28 21:23:07,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-04-28 21:23:07,076 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-04-28 21:23:07,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-04-28 21:23:07,120 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 21:23:07,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673866865] [2021-04-28 21:23:07,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:23:07,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 21:23:07,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714956069] [2021-04-28 21:23:07,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 21:23:07,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:23:07,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 21:23:07,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-04-28 21:23:07,125 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 324 [2021-04-28 21:23:07,127 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 74 transitions, 495 flow. Second operand has 7 states, 7 states have (on average 185.85714285714286) internal successors, (1301), 7 states have internal predecessors, (1301), 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 21:23:07,127 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:23:07,127 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 324 [2021-04-28 21:23:07,127 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:23:07,371 INFO L129 PetriNetUnfolder]: 104/376 cut-off events. [2021-04-28 21:23:07,372 INFO L130 PetriNetUnfolder]: For 827/871 co-relation queries the response was YES. [2021-04-28 21:23:07,375 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1639 conditions, 376 events. 104/376 cut-off events. For 827/871 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 2775 event pairs, 9 based on Foata normal form. 13/261 useless extension candidates. Maximal degree in co-relation 1615. Up to 172 conditions per place. [2021-04-28 21:23:07,378 INFO L132 encePairwiseOnDemand]: 316/324 looper letters, 20 selfloop transitions, 25 changer transitions 0/78 dead transitions. [2021-04-28 21:23:07,378 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 78 transitions, 620 flow [2021-04-28 21:23:07,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:23:07,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:23:07,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 945 transitions. [2021-04-28 21:23:07,384 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2021-04-28 21:23:07,384 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 945 transitions. [2021-04-28 21:23:07,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 945 transitions. [2021-04-28 21:23:07,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:23:07,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 945 transitions. [2021-04-28 21:23:07,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 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 21:23:07,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 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 21:23:07,392 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 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 21:23:07,392 INFO L185 Difference]: Start difference. First operand has 73 places, 74 transitions, 495 flow. Second operand 5 states and 945 transitions. [2021-04-28 21:23:07,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 78 transitions, 620 flow [2021-04-28 21:23:07,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 78 transitions, 590 flow, removed 6 selfloop flow, removed 2 redundant places. [2021-04-28 21:23:07,400 INFO L241 Difference]: Finished difference. Result has 76 places, 75 transitions, 550 flow [2021-04-28 21:23:07,400 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=550, PETRI_PLACES=76, PETRI_TRANSITIONS=75} [2021-04-28 21:23:07,400 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -53 predicate places. [2021-04-28 21:23:07,401 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:23:07,401 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 75 transitions, 550 flow [2021-04-28 21:23:07,401 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 75 transitions, 550 flow [2021-04-28 21:23:07,402 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 75 transitions, 550 flow [2021-04-28 21:23:07,464 INFO L129 PetriNetUnfolder]: 93/363 cut-off events. [2021-04-28 21:23:07,464 INFO L130 PetriNetUnfolder]: For 782/800 co-relation queries the response was YES. [2021-04-28 21:23:07,467 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1445 conditions, 363 events. 93/363 cut-off events. For 782/800 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 2691 event pairs, 8 based on Foata normal form. 8/242 useless extension candidates. Maximal degree in co-relation 1422. Up to 140 conditions per place. [2021-04-28 21:23:07,475 INFO L146 LiptonReduction]: Number of co-enabled transitions 1812 [2021-04-28 21:23:07,482 INFO L158 LiptonReduction]: Checked pairs total: 599 [2021-04-28 21:23:07,482 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:23:07,482 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 82 [2021-04-28 21:23:07,483 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 75 transitions, 550 flow [2021-04-28 21:23:07,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 185.85714285714286) internal successors, (1301), 7 states have internal predecessors, (1301), 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 21:23:07,484 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:23:07,484 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:23:07,485 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 21:23:07,485 INFO L428 AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:23:07,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:23:07,485 INFO L82 PathProgramCache]: Analyzing trace with hash 434356690, now seen corresponding path program 2 times [2021-04-28 21:23:07,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:23:07,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022371100] [2021-04-28 21:23:07,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:23:07,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:23:07,565 INFO L142 QuantifierPusher]: treesize reduction 30, result has 30.2 percent of original size [2021-04-28 21:23:07,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:23:07,580 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-04-28 21:23:07,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-04-28 21:23:07,621 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-04-28 21:23:07,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-04-28 21:23:07,673 INFO L142 QuantifierPusher]: treesize reduction 11, result has 86.9 percent of original size [2021-04-28 21:23:07,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-04-28 21:23:07,728 INFO L142 QuantifierPusher]: treesize reduction 27, result has 69.0 percent of original size [2021-04-28 21:23:07,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-28 21:23:07,790 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 21:23:07,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022371100] [2021-04-28 21:23:07,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:23:07,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 21:23:07,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092043734] [2021-04-28 21:23:07,791 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 21:23:07,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:23:07,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 21:23:07,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-04-28 21:23:07,794 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 324 [2021-04-28 21:23:07,796 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 75 transitions, 550 flow. Second operand has 7 states, 7 states have (on average 188.85714285714286) internal successors, (1322), 7 states have internal predecessors, (1322), 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 21:23:07,796 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:23:07,796 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 324 [2021-04-28 21:23:07,796 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:23:08,066 INFO L129 PetriNetUnfolder]: 100/436 cut-off events. [2021-04-28 21:23:08,066 INFO L130 PetriNetUnfolder]: For 880/924 co-relation queries the response was YES. [2021-04-28 21:23:08,070 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1877 conditions, 436 events. 100/436 cut-off events. For 880/924 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 3593 event pairs, 11 based on Foata normal form. 14/289 useless extension candidates. Maximal degree in co-relation 1852. Up to 184 conditions per place. [2021-04-28 21:23:08,073 INFO L132 encePairwiseOnDemand]: 315/324 looper letters, 22 selfloop transitions, 23 changer transitions 0/78 dead transitions. [2021-04-28 21:23:08,073 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 78 transitions, 670 flow [2021-04-28 21:23:08,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:23:08,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:23:08,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 961 transitions. [2021-04-28 21:23:08,079 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5932098765432099 [2021-04-28 21:23:08,079 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 961 transitions. [2021-04-28 21:23:08,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 961 transitions. [2021-04-28 21:23:08,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:23:08,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 961 transitions. [2021-04-28 21:23:08,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 192.2) internal successors, (961), 5 states have internal predecessors, (961), 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 21:23:08,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 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 21:23:08,086 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 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 21:23:08,086 INFO L185 Difference]: Start difference. First operand has 76 places, 75 transitions, 550 flow. Second operand 5 states and 961 transitions. [2021-04-28 21:23:08,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 78 transitions, 670 flow [2021-04-28 21:23:08,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 78 transitions, 628 flow, removed 9 selfloop flow, removed 3 redundant places. [2021-04-28 21:23:08,095 INFO L241 Difference]: Finished difference. Result has 78 places, 76 transitions, 579 flow [2021-04-28 21:23:08,096 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=579, PETRI_PLACES=78, PETRI_TRANSITIONS=76} [2021-04-28 21:23:08,096 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -51 predicate places. [2021-04-28 21:23:08,096 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:23:08,096 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 76 transitions, 579 flow [2021-04-28 21:23:08,096 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 76 transitions, 579 flow [2021-04-28 21:23:08,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 78 places, 76 transitions, 579 flow [2021-04-28 21:23:08,166 INFO L129 PetriNetUnfolder]: 89/423 cut-off events. [2021-04-28 21:23:08,166 INFO L130 PetriNetUnfolder]: For 787/803 co-relation queries the response was YES. [2021-04-28 21:23:08,169 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1540 conditions, 423 events. 89/423 cut-off events. For 787/803 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 3530 event pairs, 6 based on Foata normal form. 6/269 useless extension candidates. Maximal degree in co-relation 1517. Up to 152 conditions per place. [2021-04-28 21:23:08,177 INFO L146 LiptonReduction]: Number of co-enabled transitions 1850 [2021-04-28 21:23:08,187 INFO L158 LiptonReduction]: Checked pairs total: 638 [2021-04-28 21:23:08,187 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:23:08,187 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 91 [2021-04-28 21:23:08,188 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 76 transitions, 579 flow [2021-04-28 21:23:08,189 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 188.85714285714286) internal successors, (1322), 7 states have internal predecessors, (1322), 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 21:23:08,189 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:23:08,189 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:23:08,190 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 21:23:08,190 INFO L428 AbstractCegarLoop]: === Iteration 11 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:23:08,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:23:08,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1511412516, now seen corresponding path program 3 times [2021-04-28 21:23:08,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:23:08,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85579204] [2021-04-28 21:23:08,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:23:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:23:08,273 INFO L142 QuantifierPusher]: treesize reduction 31, result has 59.2 percent of original size [2021-04-28 21:23:08,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-04-28 21:23:08,330 INFO L142 QuantifierPusher]: treesize reduction 31, result has 60.8 percent of original size [2021-04-28 21:23:08,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-04-28 21:23:08,396 INFO L142 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size [2021-04-28 21:23:08,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-04-28 21:23:08,447 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.2 percent of original size [2021-04-28 21:23:08,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-28 21:23:08,508 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size [2021-04-28 21:23:08,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-28 21:23:08,574 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 21:23:08,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85579204] [2021-04-28 21:23:08,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:23:08,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 21:23:08,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70882608] [2021-04-28 21:23:08,575 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 21:23:08,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:23:08,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 21:23:08,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-04-28 21:23:08,578 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 324 [2021-04-28 21:23:08,579 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 76 transitions, 579 flow. Second operand has 7 states, 7 states have (on average 187.85714285714286) internal successors, (1315), 7 states have internal predecessors, (1315), 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 21:23:08,580 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:23:08,580 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 324 [2021-04-28 21:23:08,580 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:23:08,854 INFO L129 PetriNetUnfolder]: 88/488 cut-off events. [2021-04-28 21:23:08,854 INFO L130 PetriNetUnfolder]: For 961/973 co-relation queries the response was YES. [2021-04-28 21:23:08,858 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1950 conditions, 488 events. 88/488 cut-off events. For 961/973 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 4412 event pairs, 9 based on Foata normal form. 9/308 useless extension candidates. Maximal degree in co-relation 1925. Up to 166 conditions per place. [2021-04-28 21:23:08,862 INFO L132 encePairwiseOnDemand]: 315/324 looper letters, 20 selfloop transitions, 29 changer transitions 0/82 dead transitions. [2021-04-28 21:23:08,862 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 82 transitions, 741 flow [2021-04-28 21:23:08,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 21:23:08,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 21:23:08,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1145 transitions. [2021-04-28 21:23:08,868 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5889917695473251 [2021-04-28 21:23:08,868 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1145 transitions. [2021-04-28 21:23:08,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1145 transitions. [2021-04-28 21:23:08,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:23:08,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1145 transitions. [2021-04-28 21:23:08,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 190.83333333333334) internal successors, (1145), 6 states have internal predecessors, (1145), 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 21:23:08,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 324.0) internal successors, (2268), 7 states have internal predecessors, (2268), 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 21:23:08,877 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 324.0) internal successors, (2268), 7 states have internal predecessors, (2268), 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 21:23:08,877 INFO L185 Difference]: Start difference. First operand has 78 places, 76 transitions, 579 flow. Second operand 6 states and 1145 transitions. [2021-04-28 21:23:08,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 82 transitions, 741 flow [2021-04-28 21:23:08,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 82 transitions, 693 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-04-28 21:23:08,885 INFO L241 Difference]: Finished difference. Result has 82 places, 79 transitions, 664 flow [2021-04-28 21:23:08,886 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=664, PETRI_PLACES=82, PETRI_TRANSITIONS=79} [2021-04-28 21:23:08,886 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -47 predicate places. [2021-04-28 21:23:08,886 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:23:08,886 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 79 transitions, 664 flow [2021-04-28 21:23:08,886 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 79 transitions, 664 flow [2021-04-28 21:23:08,887 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 79 transitions, 664 flow [2021-04-28 21:23:08,963 INFO L129 PetriNetUnfolder]: 78/470 cut-off events. [2021-04-28 21:23:08,963 INFO L130 PetriNetUnfolder]: For 1085/1113 co-relation queries the response was YES. [2021-04-28 21:23:08,967 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1763 conditions, 470 events. 78/470 cut-off events. For 1085/1113 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 4282 event pairs, 11 based on Foata normal form. 10/293 useless extension candidates. Maximal degree in co-relation 1738. Up to 156 conditions per place. [2021-04-28 21:23:08,976 INFO L146 LiptonReduction]: Number of co-enabled transitions 1900 [2021-04-28 21:23:09,059 INFO L158 LiptonReduction]: Checked pairs total: 766 [2021-04-28 21:23:09,060 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:23:09,060 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 174 [2021-04-28 21:23:09,061 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 79 transitions, 664 flow [2021-04-28 21:23:09,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 187.85714285714286) internal successors, (1315), 7 states have internal predecessors, (1315), 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 21:23:09,062 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:23:09,062 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:23:09,062 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 21:23:09,062 INFO L428 AbstractCegarLoop]: === Iteration 12 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:23:09,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:23:09,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1415004996, now seen corresponding path program 4 times [2021-04-28 21:23:09,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:23:09,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910930476] [2021-04-28 21:23:09,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:23:09,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:23:09,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:09,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:23:09,175 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-04-28 21:23:09,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-04-28 21:23:09,216 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-04-28 21:23:09,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-04-28 21:23:09,268 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-04-28 21:23:09,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-04-28 21:23:09,330 INFO L142 QuantifierPusher]: treesize reduction 27, result has 69.0 percent of original size [2021-04-28 21:23:09,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-28 21:23:09,393 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 21:23:09,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910930476] [2021-04-28 21:23:09,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:23:09,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 21:23:09,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027342806] [2021-04-28 21:23:09,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 21:23:09,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:23:09,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 21:23:09,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-04-28 21:23:09,399 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 324 [2021-04-28 21:23:09,400 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 79 transitions, 664 flow. Second operand has 7 states, 7 states have (on average 182.85714285714286) internal successors, (1280), 7 states have internal predecessors, (1280), 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 21:23:09,401 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:23:09,401 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 324 [2021-04-28 21:23:09,401 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:23:09,745 INFO L129 PetriNetUnfolder]: 81/497 cut-off events. [2021-04-28 21:23:09,745 INFO L130 PetriNetUnfolder]: For 1321/1365 co-relation queries the response was YES. [2021-04-28 21:23:09,749 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2079 conditions, 497 events. 81/497 cut-off events. For 1321/1365 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 4483 event pairs, 1 based on Foata normal form. 15/312 useless extension candidates. Maximal degree in co-relation 2052. Up to 176 conditions per place. [2021-04-28 21:23:09,753 INFO L132 encePairwiseOnDemand]: 317/324 looper letters, 20 selfloop transitions, 30 changer transitions 0/83 dead transitions. [2021-04-28 21:23:09,753 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 83 transitions, 797 flow [2021-04-28 21:23:09,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 21:23:09,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 21:23:09,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1112 transitions. [2021-04-28 21:23:09,760 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5720164609053497 [2021-04-28 21:23:09,760 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1112 transitions. [2021-04-28 21:23:09,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1112 transitions. [2021-04-28 21:23:09,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:23:09,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1112 transitions. [2021-04-28 21:23:09,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 185.33333333333334) internal successors, (1112), 6 states have internal predecessors, (1112), 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 21:23:09,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 324.0) internal successors, (2268), 7 states have internal predecessors, (2268), 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 21:23:09,777 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 324.0) internal successors, (2268), 7 states have internal predecessors, (2268), 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 21:23:09,777 INFO L185 Difference]: Start difference. First operand has 82 places, 79 transitions, 664 flow. Second operand 6 states and 1112 transitions. [2021-04-28 21:23:09,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 83 transitions, 797 flow [2021-04-28 21:23:09,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 83 transitions, 762 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-04-28 21:23:09,790 INFO L241 Difference]: Finished difference. Result has 85 places, 79 transitions, 715 flow [2021-04-28 21:23:09,791 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=629, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=715, PETRI_PLACES=85, PETRI_TRANSITIONS=79} [2021-04-28 21:23:09,791 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -44 predicate places. [2021-04-28 21:23:09,791 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:23:09,791 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 79 transitions, 715 flow [2021-04-28 21:23:09,792 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 79 transitions, 715 flow [2021-04-28 21:23:09,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 79 transitions, 715 flow [2021-04-28 21:23:09,868 INFO L129 PetriNetUnfolder]: 70/490 cut-off events. [2021-04-28 21:23:09,868 INFO L130 PetriNetUnfolder]: For 1288/1320 co-relation queries the response was YES. [2021-04-28 21:23:09,872 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1853 conditions, 490 events. 70/490 cut-off events. For 1288/1320 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 4568 event pairs, 11 based on Foata normal form. 4/290 useless extension candidates. Maximal degree in co-relation 1827. Up to 154 conditions per place. [2021-04-28 21:23:09,881 INFO L146 LiptonReduction]: Number of co-enabled transitions 1898 [2021-04-28 21:23:09,890 INFO L158 LiptonReduction]: Checked pairs total: 754 [2021-04-28 21:23:09,891 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:23:09,891 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 100 [2021-04-28 21:23:09,894 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 79 transitions, 715 flow [2021-04-28 21:23:09,894 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 182.85714285714286) internal successors, (1280), 7 states have internal predecessors, (1280), 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 21:23:09,894 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:23:09,894 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:23:09,895 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-28 21:23:09,895 INFO L428 AbstractCegarLoop]: === Iteration 13 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:23:09,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:23:09,895 INFO L82 PathProgramCache]: Analyzing trace with hash -2103456946, now seen corresponding path program 1 times [2021-04-28 21:23:09,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:23:09,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122494452] [2021-04-28 21:23:09,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:23:09,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:23:09,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:09,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:23:09,978 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 21:23:09,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:23:09,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:09,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:23:09,992 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 21:23:09,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122494452] [2021-04-28 21:23:09,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:23:09,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:23:09,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888507868] [2021-04-28 21:23:09,993 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 21:23:09,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:23:09,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 21:23:09,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 21:23:09,997 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 324 [2021-04-28 21:23:09,998 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 79 transitions, 715 flow. Second operand has 4 states, 4 states have (on average 225.75) internal successors, (903), 4 states have internal predecessors, (903), 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 21:23:09,998 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:23:09,998 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 324 [2021-04-28 21:23:09,998 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:23:11,556 INFO L129 PetriNetUnfolder]: 7011/12432 cut-off events. [2021-04-28 21:23:11,557 INFO L130 PetriNetUnfolder]: For 9060/21266 co-relation queries the response was YES. [2021-04-28 21:23:11,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28513 conditions, 12432 events. 7011/12432 cut-off events. For 9060/21266 co-relation queries the response was YES. Maximal size of possible extension queue 3384. Compared 126740 event pairs, 2901 based on Foata normal form. 483/3310 useless extension candidates. Maximal degree in co-relation 28485. Up to 7876 conditions per place. [2021-04-28 21:23:11,660 INFO L132 encePairwiseOnDemand]: 307/324 looper letters, 32 selfloop transitions, 27 changer transitions 3/114 dead transitions. [2021-04-28 21:23:11,661 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 114 transitions, 903 flow [2021-04-28 21:23:11,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:23:11,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:23:11,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1179 transitions. [2021-04-28 21:23:11,671 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7277777777777777 [2021-04-28 21:23:11,671 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1179 transitions. [2021-04-28 21:23:11,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1179 transitions. [2021-04-28 21:23:11,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:23:11,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1179 transitions. [2021-04-28 21:23:11,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 235.8) internal successors, (1179), 5 states have internal predecessors, (1179), 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 21:23:11,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 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 21:23:11,679 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 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 21:23:11,679 INFO L185 Difference]: Start difference. First operand has 85 places, 79 transitions, 715 flow. Second operand 5 states and 1179 transitions. [2021-04-28 21:23:11,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 114 transitions, 903 flow [2021-04-28 21:23:11,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 114 transitions, 853 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-04-28 21:23:11,705 INFO L241 Difference]: Finished difference. Result has 88 places, 101 transitions, 843 flow [2021-04-28 21:23:11,706 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=665, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=843, PETRI_PLACES=88, PETRI_TRANSITIONS=101} [2021-04-28 21:23:11,706 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -41 predicate places. [2021-04-28 21:23:11,706 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:23:11,706 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 101 transitions, 843 flow [2021-04-28 21:23:11,706 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 101 transitions, 843 flow [2021-04-28 21:23:11,707 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 101 transitions, 843 flow [2021-04-28 21:23:12,766 INFO L129 PetriNetUnfolder]: 6057/10508 cut-off events. [2021-04-28 21:23:12,766 INFO L130 PetriNetUnfolder]: For 9479/14967 co-relation queries the response was YES. [2021-04-28 21:23:12,829 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32304 conditions, 10508 events. 6057/10508 cut-off events. For 9479/14967 co-relation queries the response was YES. Maximal size of possible extension queue 2490. Compared 101573 event pairs, 2671 based on Foata normal form. 76/2898 useless extension candidates. Maximal degree in co-relation 32275. Up to 9347 conditions per place. [2021-04-28 21:23:12,951 INFO L146 LiptonReduction]: Number of co-enabled transitions 2566 [2021-04-28 21:23:13,115 INFO L158 LiptonReduction]: Checked pairs total: 770 [2021-04-28 21:23:13,116 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:23:13,116 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1410 [2021-04-28 21:23:13,117 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 101 transitions, 843 flow [2021-04-28 21:23:13,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 225.75) internal successors, (903), 4 states have internal predecessors, (903), 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 21:23:13,118 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:23:13,118 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:23:13,118 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-04-28 21:23:13,118 INFO L428 AbstractCegarLoop]: === Iteration 14 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:23:13,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:23:13,119 INFO L82 PathProgramCache]: Analyzing trace with hash 571630073, now seen corresponding path program 1 times [2021-04-28 21:23:13,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:23:13,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710530672] [2021-04-28 21:23:13,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:23:13,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:23:13,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:13,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:23:13,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:13,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:23:13,225 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 21:23:13,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:23:13,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:13,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:23:13,240 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 21:23:13,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710530672] [2021-04-28 21:23:13,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:23:13,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 21:23:13,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822390499] [2021-04-28 21:23:13,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 21:23:13,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:23:13,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 21:23:13,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 21:23:13,244 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 324 [2021-04-28 21:23:13,245 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 101 transitions, 843 flow. Second operand has 5 states, 5 states have (on average 225.8) internal successors, (1129), 5 states have internal predecessors, (1129), 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 21:23:13,245 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:23:13,245 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 324 [2021-04-28 21:23:13,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:23:15,147 INFO L129 PetriNetUnfolder]: 5871/12093 cut-off events. [2021-04-28 21:23:15,147 INFO L130 PetriNetUnfolder]: For 17671/282243 co-relation queries the response was YES. [2021-04-28 21:23:15,194 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47121 conditions, 12093 events. 5871/12093 cut-off events. For 17671/282243 co-relation queries the response was YES. Maximal size of possible extension queue 3930. Compared 138652 event pairs, 459 based on Foata normal form. 641/3801 useless extension candidates. Maximal degree in co-relation 47090. Up to 10424 conditions per place. [2021-04-28 21:23:15,225 INFO L132 encePairwiseOnDemand]: 307/324 looper letters, 21 selfloop transitions, 52 changer transitions 9/125 dead transitions. [2021-04-28 21:23:15,225 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 125 transitions, 1053 flow [2021-04-28 21:23:15,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 21:23:15,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 21:23:15,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1653 transitions. [2021-04-28 21:23:15,232 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7288359788359788 [2021-04-28 21:23:15,233 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1653 transitions. [2021-04-28 21:23:15,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1653 transitions. [2021-04-28 21:23:15,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:23:15,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1653 transitions. [2021-04-28 21:23:15,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 236.14285714285714) internal successors, (1653), 7 states have internal predecessors, (1653), 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 21:23:15,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 324.0) internal successors, (2592), 8 states have internal predecessors, (2592), 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 21:23:15,243 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 324.0) internal successors, (2592), 8 states have internal predecessors, (2592), 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 21:23:15,243 INFO L185 Difference]: Start difference. First operand has 88 places, 101 transitions, 843 flow. Second operand 7 states and 1653 transitions. [2021-04-28 21:23:15,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 125 transitions, 1053 flow [2021-04-28 21:23:15,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 125 transitions, 992 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-04-28 21:23:15,470 INFO L241 Difference]: Finished difference. Result has 91 places, 114 transitions, 974 flow [2021-04-28 21:23:15,470 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=633, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=974, PETRI_PLACES=91, PETRI_TRANSITIONS=114} [2021-04-28 21:23:15,470 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -38 predicate places. [2021-04-28 21:23:15,470 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:23:15,470 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 114 transitions, 974 flow [2021-04-28 21:23:15,471 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 114 transitions, 974 flow [2021-04-28 21:23:15,472 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 114 transitions, 974 flow [2021-04-28 21:23:16,307 INFO L129 PetriNetUnfolder]: 3718/8346 cut-off events. [2021-04-28 21:23:16,307 INFO L130 PetriNetUnfolder]: For 16887/36258 co-relation queries the response was YES. [2021-04-28 21:23:16,334 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37321 conditions, 8346 events. 3718/8346 cut-off events. For 16887/36258 co-relation queries the response was YES. Maximal size of possible extension queue 2536. Compared 98527 event pairs, 477 based on Foata normal form. 28/2269 useless extension candidates. Maximal degree in co-relation 37291. Up to 7253 conditions per place. [2021-04-28 21:23:16,426 INFO L146 LiptonReduction]: Number of co-enabled transitions 2926 [2021-04-28 21:23:16,443 INFO L158 LiptonReduction]: Checked pairs total: 588 [2021-04-28 21:23:16,443 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:23:16,443 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 973 [2021-04-28 21:23:16,444 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 114 transitions, 974 flow [2021-04-28 21:23:16,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 225.8) internal successors, (1129), 5 states have internal predecessors, (1129), 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 21:23:16,445 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:23:16,445 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:23:16,445 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-04-28 21:23:16,445 INFO L428 AbstractCegarLoop]: === Iteration 15 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:23:16,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:23:16,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1495582435, now seen corresponding path program 1 times [2021-04-28 21:23:16,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:23:16,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909041002] [2021-04-28 21:23:16,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:23:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:23:16,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:16,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:23:16,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:16,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:23:16,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:16,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:23:16,511 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 21:23:16,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909041002] [2021-04-28 21:23:16,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:23:16,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:23:16,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373944652] [2021-04-28 21:23:16,513 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 21:23:16,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:23:16,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 21:23:16,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 21:23:16,516 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 324 [2021-04-28 21:23:16,517 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 114 transitions, 974 flow. Second operand has 4 states, 4 states have (on average 236.0) internal successors, (944), 4 states have internal predecessors, (944), 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 21:23:16,517 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:23:16,517 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 324 [2021-04-28 21:23:16,517 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:23:18,372 INFO L129 PetriNetUnfolder]: 7938/16644 cut-off events. [2021-04-28 21:23:18,373 INFO L130 PetriNetUnfolder]: For 45316/222983 co-relation queries the response was YES. [2021-04-28 21:23:18,424 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73723 conditions, 16644 events. 7938/16644 cut-off events. For 45316/222983 co-relation queries the response was YES. Maximal size of possible extension queue 4824. Compared 201085 event pairs, 918 based on Foata normal form. 113/4410 useless extension candidates. Maximal degree in co-relation 73691. Up to 14546 conditions per place. [2021-04-28 21:23:18,451 INFO L132 encePairwiseOnDemand]: 321/324 looper letters, 4 selfloop transitions, 2 changer transitions 10/116 dead transitions. [2021-04-28 21:23:18,451 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 116 transitions, 1002 flow [2021-04-28 21:23:18,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 21:23:18,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 21:23:18,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 947 transitions. [2021-04-28 21:23:18,456 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7307098765432098 [2021-04-28 21:23:18,456 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 947 transitions. [2021-04-28 21:23:18,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 947 transitions. [2021-04-28 21:23:18,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:23:18,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 947 transitions. [2021-04-28 21:23:18,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 236.75) internal successors, (947), 4 states have internal predecessors, (947), 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 21:23:18,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 324.0) internal successors, (1620), 5 states have internal predecessors, (1620), 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 21:23:18,462 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 324.0) internal successors, (1620), 5 states have internal predecessors, (1620), 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 21:23:18,462 INFO L185 Difference]: Start difference. First operand has 91 places, 114 transitions, 974 flow. Second operand 4 states and 947 transitions. [2021-04-28 21:23:18,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 116 transitions, 1002 flow [2021-04-28 21:23:21,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 116 transitions, 873 flow, removed 42 selfloop flow, removed 3 redundant places. [2021-04-28 21:23:21,467 INFO L241 Difference]: Finished difference. Result has 93 places, 105 transitions, 751 flow [2021-04-28 21:23:21,467 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=845, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=751, PETRI_PLACES=93, PETRI_TRANSITIONS=105} [2021-04-28 21:23:21,468 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -36 predicate places. [2021-04-28 21:23:21,468 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:23:21,468 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 105 transitions, 751 flow [2021-04-28 21:23:21,468 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 105 transitions, 751 flow [2021-04-28 21:23:21,469 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 105 transitions, 751 flow [2021-04-28 21:23:22,571 INFO L129 PetriNetUnfolder]: 5717/11721 cut-off events. [2021-04-28 21:23:22,571 INFO L130 PetriNetUnfolder]: For 15931/17670 co-relation queries the response was YES. [2021-04-28 21:23:22,606 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41156 conditions, 11721 events. 5717/11721 cut-off events. For 15931/17670 co-relation queries the response was YES. Maximal size of possible extension queue 3106. Compared 135016 event pairs, 901 based on Foata normal form. 34/3312 useless extension candidates. Maximal degree in co-relation 41125. Up to 5045 conditions per place. [2021-04-28 21:23:22,672 INFO L146 LiptonReduction]: Number of co-enabled transitions 2232 [2021-04-28 21:23:22,687 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 21:23:22,687 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:23:22,687 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1219 [2021-04-28 21:23:22,688 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 105 transitions, 751 flow [2021-04-28 21:23:22,689 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 236.0) internal successors, (944), 4 states have internal predecessors, (944), 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 21:23:22,689 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:23:22,689 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:23:22,689 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-04-28 21:23:22,689 INFO L428 AbstractCegarLoop]: === Iteration 16 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:23:22,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:23:22,690 INFO L82 PathProgramCache]: Analyzing trace with hash -875056805, now seen corresponding path program 1 times [2021-04-28 21:23:22,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:23:22,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685055636] [2021-04-28 21:23:22,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:23:22,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:23:22,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:22,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:23:22,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:22,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:23:22,738 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 21:23:22,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685055636] [2021-04-28 21:23:22,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:23:22,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 21:23:22,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562319279] [2021-04-28 21:23:22,739 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:23:22,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:23:22,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:23:22,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:23:22,741 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 324 [2021-04-28 21:23:22,742 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 105 transitions, 751 flow. Second operand has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 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 21:23:22,742 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:23:22,742 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 324 [2021-04-28 21:23:22,742 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:23:24,785 INFO L129 PetriNetUnfolder]: 10489/20876 cut-off events. [2021-04-28 21:23:24,785 INFO L130 PetriNetUnfolder]: For 35428/56605 co-relation queries the response was YES. [2021-04-28 21:23:24,870 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73658 conditions, 20876 events. 10489/20876 cut-off events. For 35428/56605 co-relation queries the response was YES. Maximal size of possible extension queue 5535. Compared 248318 event pairs, 1800 based on Foata normal form. 140/5816 useless extension candidates. Maximal degree in co-relation 73625. Up to 9629 conditions per place. [2021-04-28 21:23:25,017 INFO L132 encePairwiseOnDemand]: 321/324 looper letters, 3 selfloop transitions, 3 changer transitions 2/105 dead transitions. [2021-04-28 21:23:25,017 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 105 transitions, 763 flow [2021-04-28 21:23:25,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:23:25,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:23:25,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 750 transitions. [2021-04-28 21:23:25,021 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7716049382716049 [2021-04-28 21:23:25,022 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 750 transitions. [2021-04-28 21:23:25,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 750 transitions. [2021-04-28 21:23:25,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:23:25,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 750 transitions. [2021-04-28 21:23:25,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 250.0) internal successors, (750), 3 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:23:25,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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 21:23:25,032 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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 21:23:25,032 INFO L185 Difference]: Start difference. First operand has 89 places, 105 transitions, 751 flow. Second operand 3 states and 750 transitions. [2021-04-28 21:23:25,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 105 transitions, 763 flow [2021-04-28 21:23:27,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 105 transitions, 762 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 21:23:27,409 INFO L241 Difference]: Finished difference. Result has 91 places, 103 transitions, 730 flow [2021-04-28 21:23:27,409 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=730, PETRI_PLACES=91, PETRI_TRANSITIONS=103} [2021-04-28 21:23:27,410 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -38 predicate places. [2021-04-28 21:23:27,410 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:23:27,410 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 103 transitions, 730 flow [2021-04-28 21:23:27,410 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 103 transitions, 730 flow [2021-04-28 21:23:27,411 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 103 transitions, 730 flow [2021-04-28 21:23:29,108 INFO L129 PetriNetUnfolder]: 10482/20842 cut-off events. [2021-04-28 21:23:29,108 INFO L130 PetriNetUnfolder]: For 35372/57953 co-relation queries the response was YES. [2021-04-28 21:23:29,186 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73271 conditions, 20842 events. 10482/20842 cut-off events. For 35372/57953 co-relation queries the response was YES. Maximal size of possible extension queue 5686. Compared 249938 event pairs, 1800 based on Foata normal form. 57/5653 useless extension candidates. Maximal degree in co-relation 73239. Up to 9656 conditions per place. [2021-04-28 21:23:29,309 INFO L146 LiptonReduction]: Number of co-enabled transitions 2228 [2021-04-28 21:23:29,458 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 21:23:29,458 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:23:29,458 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2048 [2021-04-28 21:23:29,460 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 103 transitions, 730 flow [2021-04-28 21:23:29,460 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 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 21:23:29,460 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:23:29,461 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:23:29,461 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-04-28 21:23:29,461 INFO L428 AbstractCegarLoop]: === Iteration 17 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:23:29,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:23:29,461 INFO L82 PathProgramCache]: Analyzing trace with hash 20541581, now seen corresponding path program 1 times [2021-04-28 21:23:29,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:23:29,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085076911] [2021-04-28 21:23:29,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:23:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:23:29,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:29,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:23:29,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:29,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:23:29,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:29,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:23:29,596 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 21:23:29,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:23:29,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:29,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:23:29,616 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 21:23:29,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085076911] [2021-04-28 21:23:29,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:23:29,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 21:23:29,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613936443] [2021-04-28 21:23:29,617 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 21:23:29,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:23:29,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 21:23:29,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 21:23:29,620 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 324 [2021-04-28 21:23:29,622 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 103 transitions, 730 flow. Second operand has 6 states, 6 states have (on average 225.83333333333334) internal successors, (1355), 6 states have internal predecessors, (1355), 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 21:23:29,622 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:23:29,622 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 324 [2021-04-28 21:23:29,622 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:23:32,403 INFO L129 PetriNetUnfolder]: 9049/20462 cut-off events. [2021-04-28 21:23:32,404 INFO L130 PetriNetUnfolder]: For 36255/249155 co-relation queries the response was YES. [2021-04-28 21:23:32,477 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87762 conditions, 20462 events. 9049/20462 cut-off events. For 36255/249155 co-relation queries the response was YES. Maximal size of possible extension queue 5589. Compared 269191 event pairs, 0 based on Foata normal form. 881/6408 useless extension candidates. Maximal degree in co-relation 87728. Up to 10098 conditions per place. [2021-04-28 21:23:32,492 INFO L132 encePairwiseOnDemand]: 307/324 looper letters, 5 selfloop transitions, 61 changer transitions 35/122 dead transitions. [2021-04-28 21:23:32,492 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 122 transitions, 1029 flow [2021-04-28 21:23:32,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 21:23:32,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 21:23:32,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2109 transitions. [2021-04-28 21:23:32,501 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7232510288065843 [2021-04-28 21:23:32,501 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2109 transitions. [2021-04-28 21:23:32,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2109 transitions. [2021-04-28 21:23:32,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:23:32,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2109 transitions. [2021-04-28 21:23:32,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 234.33333333333334) internal successors, (2109), 9 states have internal predecessors, (2109), 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 21:23:32,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 324.0) internal successors, (3240), 10 states have internal predecessors, (3240), 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 21:23:32,513 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 324.0) internal successors, (3240), 10 states have internal predecessors, (3240), 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 21:23:32,513 INFO L185 Difference]: Start difference. First operand has 91 places, 103 transitions, 730 flow. Second operand 9 states and 2109 transitions. [2021-04-28 21:23:32,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 122 transitions, 1029 flow [2021-04-28 21:23:34,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 122 transitions, 977 flow, removed 15 selfloop flow, removed 6 redundant places. [2021-04-28 21:23:34,806 INFO L241 Difference]: Finished difference. Result has 96 places, 85 transitions, 710 flow [2021-04-28 21:23:34,807 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=710, PETRI_PLACES=96, PETRI_TRANSITIONS=85} [2021-04-28 21:23:34,807 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -33 predicate places. [2021-04-28 21:23:34,807 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:23:34,807 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 85 transitions, 710 flow [2021-04-28 21:23:34,807 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 85 transitions, 710 flow [2021-04-28 21:23:34,808 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 85 transitions, 710 flow [2021-04-28 21:23:34,974 INFO L129 PetriNetUnfolder]: 619/2293 cut-off events. [2021-04-28 21:23:34,974 INFO L130 PetriNetUnfolder]: For 18994/29340 co-relation queries the response was YES. [2021-04-28 21:23:34,981 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10454 conditions, 2293 events. 619/2293 cut-off events. For 18994/29340 co-relation queries the response was YES. Maximal size of possible extension queue 640. Compared 27700 event pairs, 0 based on Foata normal form. 6/658 useless extension candidates. Maximal degree in co-relation 10421. Up to 1521 conditions per place. [2021-04-28 21:23:34,994 INFO L146 LiptonReduction]: Number of co-enabled transitions 996 [2021-04-28 21:23:35,208 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:23:35,350 INFO L158 LiptonReduction]: Checked pairs total: 52 [2021-04-28 21:23:35,350 INFO L160 LiptonReduction]: Total number of compositions: 2 [2021-04-28 21:23:35,350 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 543 [2021-04-28 21:23:35,351 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 85 transitions, 718 flow [2021-04-28 21:23:35,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 225.83333333333334) internal successors, (1355), 6 states have internal predecessors, (1355), 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 21:23:35,352 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:23:35,352 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] [2021-04-28 21:23:35,352 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-04-28 21:23:35,353 INFO L428 AbstractCegarLoop]: === Iteration 18 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:23:35,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:23:35,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1757002648, now seen corresponding path program 1 times [2021-04-28 21:23:35,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:23:35,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850457918] [2021-04-28 21:23:35,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:23:35,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 21:23:35,410 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 21:23:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 21:23:35,457 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 21:23:35,494 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-28 21:23:35,494 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-28 21:23:35,495 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-04-28 21:23:35,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 09:23:35 BasicIcfg [2021-04-28 21:23:35,591 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 21:23:35,592 INFO L168 Benchmark]: Toolchain (without parser) took 122548.36 ms. Allocated memory was 306.2 MB in the beginning and 10.5 GB in the end (delta: 10.2 GB). Free memory was 279.9 MB in the beginning and 9.5 GB in the end (delta: -9.2 GB). Peak memory consumption was 944.2 MB. Max. memory is 16.0 GB. [2021-04-28 21:23:35,592 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 306.2 MB. Free memory is still 274.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 21:23:35,593 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.26 ms. Allocated memory is still 306.2 MB. Free memory was 276.8 MB in the beginning and 272.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 27.6 MB. Max. memory is 16.0 GB. [2021-04-28 21:23:35,593 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.52 ms. Allocated memory is still 306.2 MB. Free memory was 272.7 MB in the beginning and 269.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-04-28 21:23:35,593 INFO L168 Benchmark]: Boogie Preprocessor took 46.99 ms. Allocated memory is still 306.2 MB. Free memory was 269.6 MB in the beginning and 267.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 21:23:35,594 INFO L168 Benchmark]: RCFGBuilder took 2166.87 ms. Allocated memory was 306.2 MB in the beginning and 381.7 MB in the end (delta: 75.5 MB). Free memory was 267.5 MB in the beginning and 286.3 MB in the end (delta: -18.9 MB). Peak memory consumption was 134.2 MB. Max. memory is 16.0 GB. [2021-04-28 21:23:35,594 INFO L168 Benchmark]: TraceAbstraction took 119488.83 ms. Allocated memory was 381.7 MB in the beginning and 10.5 GB in the end (delta: 10.1 GB). Free memory was 285.3 MB in the beginning and 9.5 GB in the end (delta: -9.2 GB). Peak memory consumption was 872.5 MB. Max. memory is 16.0 GB. [2021-04-28 21:23:35,595 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 306.2 MB. Free memory is still 274.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 718.26 ms. Allocated memory is still 306.2 MB. Free memory was 276.8 MB in the beginning and 272.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 27.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 63.52 ms. Allocated memory is still 306.2 MB. Free memory was 272.7 MB in the beginning and 269.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 46.99 ms. Allocated memory is still 306.2 MB. Free memory was 269.6 MB in the beginning and 267.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 2166.87 ms. Allocated memory was 306.2 MB in the beginning and 381.7 MB in the end (delta: 75.5 MB). Free memory was 267.5 MB in the beginning and 286.3 MB in the end (delta: -18.9 MB). Peak memory consumption was 134.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 119488.83 ms. Allocated memory was 381.7 MB in the beginning and 10.5 GB in the end (delta: 10.1 GB). Free memory was 285.3 MB in the beginning and 9.5 GB in the end (delta: -9.2 GB). Peak memory consumption was 872.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 84927.2ms, 105 PlacesBefore, 129 PlacesAfterwards, 97 TransitionsBefore, 121 TransitionsAfterwards, 1738 CoEnabledTransitionPairs, 8 FixpointIterations, 140 TrivialSequentialCompositions, 82 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 223 TotalNumberOfCompositions, 14838 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3572, positive: 3324, positive conditional: 3324, positive unconditional: 0, negative: 248, negative conditional: 248, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1919, positive: 1843, positive conditional: 0, positive unconditional: 1843, negative: 76, negative conditional: 0, negative unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1919, positive: 1843, positive conditional: 0, positive unconditional: 1843, negative: 76, negative conditional: 0, negative unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1919, positive: 1826, positive conditional: 0, positive unconditional: 1826, negative: 93, negative conditional: 0, negative unconditional: 93, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 93, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 76, negative conditional: 0, negative unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2129, positive: 250, positive conditional: 0, positive unconditional: 250, negative: 1879, negative conditional: 0, negative unconditional: 1879, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3572, positive: 1481, positive conditional: 1481, positive unconditional: 0, negative: 172, negative conditional: 172, negative unconditional: 0, unknown: 1919, unknown conditional: 1919, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1919, Positive cache size: 1843, Positive conditional cache size: 1843, Positive unconditional cache size: 0, Negative cache size: 76, Negative conditional cache size: 76, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 298.6ms, 125 PlacesBefore, 50 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 972 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 906 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 236, positive: 204, positive conditional: 204, positive unconditional: 0, negative: 32, negative conditional: 32, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 109, positive: 91, positive conditional: 8, positive unconditional: 83, negative: 18, negative conditional: 2, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 109, positive: 91, positive conditional: 8, positive unconditional: 83, negative: 18, negative conditional: 2, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 109, positive: 91, positive conditional: 0, positive unconditional: 91, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 18, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 18, negative conditional: 2, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 280, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 280, negative conditional: 54, negative unconditional: 226, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 236, positive: 113, positive conditional: 113, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 109, unknown conditional: 109, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2028, Positive cache size: 1934, Positive conditional cache size: 1934, Positive unconditional cache size: 0, Negative cache size: 94, Negative conditional cache size: 94, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 675.7ms, 51 PlacesBefore, 51 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 1058 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1356 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 240, positive: 193, positive conditional: 193, positive unconditional: 0, negative: 47, negative conditional: 47, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 52, positive: 41, positive conditional: 2, positive unconditional: 39, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 52, positive: 41, positive conditional: 2, positive unconditional: 39, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 52, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 456, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 395, negative conditional: 0, negative unconditional: 395, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 240, positive: 152, positive conditional: 152, positive unconditional: 0, negative: 36, negative conditional: 36, negative unconditional: 0, unknown: 52, unknown conditional: 52, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2080, Positive cache size: 1975, Positive conditional cache size: 1975, Positive unconditional cache size: 0, Negative cache size: 105, Negative conditional cache size: 105, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 263.2ms, 53 PlacesBefore, 53 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 1048 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 597 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 60, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 4, positive conditional: 1, positive unconditional: 3, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, positive: 4, positive conditional: 1, positive unconditional: 3, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 248, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 248, negative conditional: 0, negative unconditional: 248, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 60, positive: 35, positive conditional: 35, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 10, unknown conditional: 10, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2090, Positive cache size: 1979, Positive conditional cache size: 1979, Positive unconditional cache size: 0, Negative cache size: 111, Negative conditional cache size: 111, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 112.1ms, 56 PlacesBefore, 56 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 1274 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 410 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 65, positive: 52, positive conditional: 52, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, positive: 14, positive conditional: 8, positive unconditional: 6, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18, positive: 14, positive conditional: 8, positive unconditional: 6, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 18, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 83, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 83, negative conditional: 0, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 65, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 18, unknown conditional: 18, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2108, Positive cache size: 1993, Positive conditional cache size: 1993, Positive unconditional cache size: 0, Negative cache size: 115, Negative conditional cache size: 115, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 93.7ms, 62 PlacesBefore, 62 PlacesAfterwards, 59 TransitionsBefore, 59 TransitionsAfterwards, 1520 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 302 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 62, positive: 54, positive conditional: 54, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 11, positive conditional: 11, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 11, positive conditional: 11, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 31, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 62, positive: 43, positive conditional: 43, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2120, Positive cache size: 2004, Positive conditional cache size: 2004, Positive unconditional cache size: 0, Negative cache size: 116, Negative conditional cache size: 116, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 98.5ms, 66 PlacesBefore, 66 PlacesAfterwards, 61 TransitionsBefore, 61 TransitionsAfterwards, 1546 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 339 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 83, positive: 74, positive conditional: 74, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 31, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 83, positive: 64, positive conditional: 64, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2131, Positive cache size: 2014, Positive conditional cache size: 2014, Positive unconditional cache size: 0, Negative cache size: 117, Negative conditional cache size: 117, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 91.3ms, 68 PlacesBefore, 68 PlacesAfterwards, 70 TransitionsBefore, 70 TransitionsAfterwards, 1700 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 476 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 148, positive: 136, positive conditional: 136, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 11, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 11, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 148, positive: 124, positive conditional: 124, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2143, Positive cache size: 2026, Positive conditional cache size: 2026, Positive unconditional cache size: 0, Negative cache size: 117, Negative conditional cache size: 117, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 145.1ms, 73 PlacesBefore, 73 PlacesAfterwards, 74 TransitionsBefore, 74 TransitionsAfterwards, 1794 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 564 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 46, positive: 32, positive conditional: 32, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 5, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 5, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 62, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 46, positive: 26, positive conditional: 26, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2150, Positive cache size: 2032, Positive conditional cache size: 2032, Positive unconditional cache size: 0, Negative cache size: 118, Negative conditional cache size: 118, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 81.2ms, 76 PlacesBefore, 76 PlacesAfterwards, 75 TransitionsBefore, 75 TransitionsAfterwards, 1812 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 599 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 180, positive: 165, positive conditional: 165, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 180, positive: 152, positive conditional: 152, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2163, Positive cache size: 2045, Positive conditional cache size: 2045, Positive unconditional cache size: 0, Negative cache size: 118, Negative conditional cache size: 118, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 90.9ms, 78 PlacesBefore, 78 PlacesAfterwards, 76 TransitionsBefore, 76 TransitionsAfterwards, 1850 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 638 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 208, positive: 192, positive conditional: 192, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 9, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 9, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 208, positive: 181, positive conditional: 181, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2174, Positive cache size: 2056, Positive conditional cache size: 2056, Positive unconditional cache size: 0, Negative cache size: 118, Negative conditional cache size: 118, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 173.3ms, 82 PlacesBefore, 82 PlacesAfterwards, 79 TransitionsBefore, 79 TransitionsAfterwards, 1900 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 766 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 78, positive: 59, positive conditional: 59, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 12, positive conditional: 11, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, positive: 12, positive conditional: 11, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 75, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 78, positive: 47, positive conditional: 47, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2187, Positive cache size: 2068, Positive conditional cache size: 2068, Positive unconditional cache size: 0, Negative cache size: 119, Negative conditional cache size: 119, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 99.1ms, 85 PlacesBefore, 85 PlacesAfterwards, 79 TransitionsBefore, 79 TransitionsAfterwards, 1898 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 754 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 223, positive: 204, positive conditional: 204, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 223, positive: 194, positive conditional: 194, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 10, unknown conditional: 10, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2197, Positive cache size: 2078, Positive conditional cache size: 2078, Positive unconditional cache size: 0, Negative cache size: 119, Negative conditional cache size: 119, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1410.0ms, 88 PlacesBefore, 88 PlacesAfterwards, 101 TransitionsBefore, 101 TransitionsAfterwards, 2566 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 770 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 90, positive: 76, positive conditional: 76, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 3, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 3, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 90, positive: 66, positive conditional: 66, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 10, unknown conditional: 10, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2207, Positive cache size: 2088, Positive conditional cache size: 2088, Positive unconditional cache size: 0, Negative cache size: 119, Negative conditional cache size: 119, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 972.3ms, 91 PlacesBefore, 91 PlacesAfterwards, 114 TransitionsBefore, 114 TransitionsAfterwards, 2926 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 588 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 155, positive: 146, positive conditional: 146, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27, positive: 27, positive conditional: 23, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 27, positive: 27, positive conditional: 23, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 27, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 155, positive: 119, positive conditional: 119, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 27, unknown conditional: 27, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2234, Positive cache size: 2115, Positive conditional cache size: 2115, Positive unconditional cache size: 0, Negative cache size: 119, Negative conditional cache size: 119, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1218.8ms, 93 PlacesBefore, 89 PlacesAfterwards, 105 TransitionsBefore, 105 TransitionsAfterwards, 2232 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2234, Positive cache size: 2115, Positive conditional cache size: 2115, Positive unconditional cache size: 0, Negative cache size: 119, Negative conditional cache size: 119, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2048.0ms, 91 PlacesBefore, 91 PlacesAfterwards, 103 TransitionsBefore, 103 TransitionsAfterwards, 2228 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2234, Positive cache size: 2115, Positive conditional cache size: 2115, Positive unconditional cache size: 0, Negative cache size: 119, Negative conditional cache size: 119, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 542.7ms, 96 PlacesBefore, 87 PlacesAfterwards, 85 TransitionsBefore, 85 TransitionsAfterwards, 996 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 52 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 52, positive: 52, positive conditional: 52, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 44, positive: 44, positive conditional: 37, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 44, positive: 44, positive conditional: 37, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 44, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 52, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 44, unknown conditional: 44, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2278, Positive cache size: 2159, Positive conditional cache size: 2159, Positive unconditional cache size: 0, Negative cache size: 119, Negative conditional cache size: 119, Negative unconditional cache size: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p2_EAX = 0; [L713] 0 int __unbuffered_p2_EBX = 0; [L715] 0 int a = 0; [L716] 0 _Bool main$tmp_guard0; [L717] 0 _Bool main$tmp_guard1; [L719] 0 int x = 0; [L721] 0 int y = 0; [L722] 0 _Bool y$flush_delayed; [L723] 0 int y$mem_tmp; [L724] 0 _Bool y$r_buff0_thd0; [L725] 0 _Bool y$r_buff0_thd1; [L726] 0 _Bool y$r_buff0_thd2; [L727] 0 _Bool y$r_buff0_thd3; [L728] 0 _Bool y$r_buff1_thd0; [L729] 0 _Bool y$r_buff1_thd1; [L730] 0 _Bool y$r_buff1_thd2; [L731] 0 _Bool y$r_buff1_thd3; [L732] 0 _Bool y$read_delayed; [L733] 0 int *y$read_delayed_var; [L734] 0 int y$w_buff0; [L735] 0 _Bool y$w_buff0_used; [L736] 0 int y$w_buff1; [L737] 0 _Bool y$w_buff1_used; [L739] 0 int z = 0; [L740] 0 _Bool weak$$choice0; [L741] 0 _Bool weak$$choice2; [L823] 0 pthread_t t1196; [L824] FCALL, FORK 0 pthread_create(&t1196, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L825] 0 pthread_t t1197; [L826] FCALL, FORK 0 pthread_create(&t1197, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L827] 0 pthread_t t1198; [L828] FCALL, FORK 0 pthread_create(&t1198, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L780] 3 y$w_buff1 = y$w_buff0 [L781] 3 y$w_buff0 = 2 [L782] 3 y$w_buff1_used = y$w_buff0_used [L783] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L785] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L786] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L787] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L788] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L789] 3 y$r_buff0_thd3 = (_Bool)1 [L792] 3 z = 1 [L795] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L798] 3 __unbuffered_p2_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L745] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L748] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L760] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L763] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L801] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L801] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L802] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L802] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L803] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L803] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L804] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L804] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L805] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L805] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L766] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L766] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L766] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L766] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L767] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L767] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L768] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L768] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L769] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L769] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L770] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L770] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L753] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L773] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L775] 2 return 0; [L808] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L810] 3 return 0; [L830] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L834] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L834] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L834] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L834] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L835] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L835] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L836] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L836] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L837] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L837] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L838] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L838] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L841] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L842] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L843] 0 y$flush_delayed = weak$$choice2 [L844] 0 y$mem_tmp = y [L845] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L845] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L846] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L846] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L847] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L847] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L848] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L848] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L849] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L849] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L850] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L850] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L851] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L851] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L852] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L853] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L853] 0 y = y$flush_delayed ? y$mem_tmp : y [L854] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=51, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 99 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 19.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 119264.2ms, OverallIterations: 18, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 21832.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 85031.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 75 SDtfs, 79 SDslu, 23 SDs, 0 SdLazy, 728 SolverSat, 233 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1453.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1950.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=974occurred in iteration=14, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 59.2ms SsaConstructionTime, 716.8ms SatisfiabilityAnalysisTime, 2742.0ms InterpolantComputationTime, 233 NumberOfCodeBlocks, 233 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 196 ConstructedInterpolants, 0 QuantifiedInterpolants, 2095 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...